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Патент USA US3075818

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Jan. 29, 1963
A. LORENZ
3,075,808
.‘RECLINING CHAIR
Filed Sept. 10, 1958
3 Sheets-Sheet 1
FIG. I.
I
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'—I
IN VENTOR.
ANTON LOQE/VZ
BY M 1W7,
A TTORNEY:
Jan. 29, 1963
A. LORENZ
3,075,808
RECLINING CHAIR
Filed Sept. 10, 1958
3 Sheets-Sheet 2
FIG. 3.
/
INVENTOR.
A/VTO/V 1 OR 5NZ
’ BY m 1W1,
A TTOR
73
Jan. 29, 1963‘
A. LORENZ
3,075,803
RECLINING CHAIR
Filed Sept. 10, 1958
3 sheets-sheet 3
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INVENTOR.
A/vro/v
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United States Patent ‘()?ice
3’,h?5,li8
Patented Jan. 29, 1963
2
3,675,8498
RECLlNiNtl CHAER
Anton Lorenz, @cean Ridge, Boynton Beach, Fla.
Filed Sept. 10, 1953, Ser. No. 7613,208
5 Claims. ((31. 291-85)
The present invention relates generally to reclining
chairs of the type including a movable seat, back-rest and
leg-rest, and in particular to an improved reclining chair
of the double movement type wherein during a ?rst phase
of the reclining movement the leg~rest is moved to an
elevated leg-supporting position forwardly of the seat
and during a further phase of the reclining movement the
leg-rest remains in the elevated leg-supporting position
a second phase or portion of the reclining movement the
angular relationship between the seat and back-rest in
creases substantially, with the leg-rest remaining elevated.
In accordance with an illustrative embodiment demon
strating features and advantages of the present invention,
my improved reclining chair comprises a support, a body
supporting unit including a seat and back-rest movable rel
ative to each other for inclining and reclining movement
respectively, and a means operatively connected between
the support and the body~supporting unit mounting the
body-supporting unit for movement successively from a
sitting position into an intermediate resting position and
from the intermediate resting position into a reclining
position.‘ The mounting means includes a linkage having
while the seat and back-rest of the body-supporting unit 15 at least two pivots on the support providing a stationary
move into the required angular relation for accommodat
link, and movable links which are pivotally connected to
ing the chair occupant in a fully reclined position.
the stationary link. Means are provided for mounting one
The well~known reclining chair comprises a support, a
of the pivots on the support for displacement away from
body-supporting unit including a seat and back-rest mov
the other of the pivots on the support to increase the
able relative to each other for inclining and reclining 20 effective length of the stationary link. The linkage is
movement respectively, and a leg-rest mounted below
effective in response to the ?rst phase of chair movement
the seat for elevating movement into various leg-support
from the sitting position into the resting position to im
ing positions forwardly of the seat. Such reclining chair
includes appropriate mounting and control linkages which
part a ?rst inclination to the seat, which inclination is
preferably selected such that there is relatively no dis
placement between the seat and back-rest. During such
?rst phase of chair movement, the one pivot remains
stationary relative to the support and serves as a pivot of
coordinate the seat and leg-rest to the movement of the
back-rest such that the required inclination of the seat
and elevation of the leg~rest is achieved as a function of
or in response to the reclining movement of the back-rest.
the linkage. The linkage is further effective in response
In my copending application Serial No. 526,635, ?led
to the second phase of chair movement from the resting
30
August 5, 1955 and entitled Article of Repose for Sup
position into the reclining position to impart a second
porting the Body of a Person, now US. Patent No. 2,948,
inclination to the seat, preferably such that the requisite
330 of August 9, 1960 there is disclosed an improved re
relative displacement is achieved between the seat and
clining chair wherein there are two phases of chair
back-rest to attain the complete relaxation position. Dur
movement. During a ?rst phase or portion of the chair
ing such second phase of the motion the one pivot
movement, the body-supporting unit is moved into an 35 is displaced away from the other pivot. In some in
intermediate tilted or semi-reclined position, and the leg
stances, useful applications may be found for this mount
'rest is moved into an elevated leg-supporting position.
During a second phase or portion of the reclining move
ment the body-supporting unit is moved to a fully reclined
ing linkage which permits different angular relationships
between the seat and back-rest to be attained during dif
'ferent portions of the chair movement. However, for
position, with the leg-rest remaining substantially in the 40 most practical applications, a leg-rest is mounted beneath
elevated leg-supporting position during such further move
the seat and is elevated by an appropriate leg-rest control
ment. In this general type of double movement chair, it
linkage which is operatively connected to the body-sup
is preferable that the angular relationship between the seat
and back-rest remain substantially the same as the chair
moves through the ?rst phase into the intermediate tilted
or semi~reclined position such that the chair occupant
may be comfortably accommodated in an attitude ap
propriate for viewing television, reading, sewing and the
porting unit and elevates the leg-rest into a leg-support—
ing position forwardly of the seat in response to movement
of the body-supporting unit into the intermediate resting
position.
Provision is made for blocking the leg-rest
control linkage when the chair moves into the intermedi
ate resting position; and during the second or further
like; and that the angle between the seat and back-rest
phase of the reclining movement, the blocked leg-rest
opens up as the chair moves through the second phase 50 control linkage supports the leg-rest in the elevated leg
supporting position.
into the fully reclined position such that the chair oc
cupant may be accommodated in an attitude appropriate
Advantageonsly, my improved coordinating linkage
for complete or full relaxation.
employs pivotally mounted links, with appropriate pro
Broadly, it is an object of the present invention to
vision for lost motion travel of at least one of the pivots
provide an improved reclining chair of the double move 55 for one of the links, such that chairs incorporating such
ment type. Speci?cally, it is within the contemplation of
coordinating linkage may be manufactured on a mass
the present invention to provide an improved mounting and
production basis with comparatively low unit cost and
control arrangement for achieving the coordinated move_
with a reasonable assurance of substantially trouble-free
operation.
ment of the seat and leg-rest of the reclining chair in
response to the reclining movement of the back-rest such 60
The above brief description, as well as further objects,
that the requisite relative positions of the chair compo
features and advantages of the present invention, will be
nents are attained during the ?rst and second phases of the
more fully appreciated by reference to the following de
reclining movement to accommodate the chair occupant
tailed description of several illustrative embodiments
in the various relaxation positions.
(
demonstrating features of the present invention, when
It is a further object of the present invention to pro 65 taken in conjunction with the accompanying drawings,
vide an improved and simpli?ed linkage for achieving the
wherein:
FIG. 1 is an elevational view, with parts broken away
reclining chair such that during a ?rst phase or portion
and sectioned, of a reclining chair of the double move
of the reclining movement the leg-rest is elevated, with
ment type demonstrating features of the present inven
the seat and back-rest remaining substantially in the same 70 tion, sh wn in the upright or sitting position;
angular relationhip as in the sitting position, and during
FIG. 2 is an elevational view, similar to FIG. 1, but
requisite relative movement of the seat and leg-rest of a
‘3,075,808
3
showing the reclining chair in the intermediate tilted or
the pivotal mounting of the guiding link 34 for turning
semi-reclined resting position;
movement about the mounting pin 36 when accommodated
in the seating or bearing notch 40a and for the translation
or displacement of the guiding link 34 and its pivot 36
through a lost motion stroke toward the forward end of
the chair. The length and path of the lost motion stroke
is established by the elongated guideway 40. As is gen
FIG. 3 is an elevational view similar to FIG. 1 but
showing the chair in the extreme or fully reclined posi
tion;
' FIG. 4 is an elevational view, with parts broken away
and sectioned, of a further embodiment of reclining
erally understood in the art, other substantially equivalent
means may be employed for mounting the guiding link
‘features of the present invention, shown in the upright
or sitting position;
10 34 for pivotal movement about a relatively stationary
' chair of the double movement type demonstrating further
pivot and for translation relative to the support. For exam~
ple, the pivot pin 36 may be mounted on the support and
the guiding bracket 38 may be formed integral with the
FIG. 5 is an elevational view similar to FIG. 4, but
showing the reclining chair in the intermediate tilted or
semi-reclined resting position; and,
link 34 such that this equivalent pin and slot intercon
FIG. .6 is an elevational view similar to FIG. 5 but
showing the chair in the extreme or fully reclined posi 15 nection serve as a lost motion mounting means. Extend
ing between the back-rest extension 32 and the guiding
tion.
Referring now specifically to the drawings, there is
link 34 is an actuating link 42 which has a pivotal con
nection 44 at ‘its rearward end to the lower end of the
shown in FIGS. 1-3 inclusive a ‘?rst embodiment of re
clining chair of the double movement type demonstrating
back~rest extension 32 and has a pivotal connection 46 at
features of the present invention, which has been generally 20 its forward end to the guiding link 34. Connected be
designated by the reference numeral 10, and includes a
tween the guiding link 34 and the seat 24 is a seat control
support 12 having opposite side walls 14, 16 intercon
link 48 which has a pivotal connection 50 at its rearward
end to the guiding link 34 at a point spaced below the
nected by appropriate cross braces or bars 18, 20, and 22
on which is movably mounted a body-supporting unit
pivotal connection 46 to the‘ actuating‘ link 42 and has a
including a seat 24 and a back-rest 26.
25 pivotal connection 52 at its forward end to‘ the seat 24.
Appropriate mounting means are operatively connected
to the body-supporting unit for mounting the same for
movement successively. from a sitting position (illustrated
in FIG. 1) into an intermediate tilted‘ or resting position
The seat control link 48 is disposed in an inclined position
extending forwardly and upwardly from its lower end
to its upper‘ end and is effective in‘ response to turning
movement of the guiding link 34 about‘ the pivot 36‘ to
(illustrated in FIG. 2) and from the resting position into 30 impart a prescribed inclination" to the seat 24. The de
scribed arrangement will be recognized as providing a
a reclining position (illustrated in FIG. 3). In this em
four-bar mounting linkage‘ including the back-rest pivot
bodiment, the back-rest 26 is mounted on the support 12
at‘a back-rest pivot 28 contiguous to the lower end of the
28 as a ?rst‘ stationary pivot and‘ the‘ mounting pin 36 as
a substantially stationary second pivot, with the poriton
pivot 28' by means of rearwardly' directed rigid hangers 30 35 of the support intermediate‘ the pivots 28, 36, serving" as
?xed‘ to the seat 24 and journaled on the hack-rest pivot
a stationary link of the four-bar linkage. The back-rest
' 28. In the normal or upright sitting position of the chair,
extension 32 intermediate the‘ pivots 28, 44, the‘ actuating
link 42 and the portion of the guiding link 34 intermediate
the seat 24 rests on the cross-brace. 22 of the support or
hack-rest 26. The seat 24 is mounted at the back-rest
the pivots 36, 46' serve as the movable links of the‘ four
frame 12 which serves as a stop.
bar linkage. As the mounting pin 36 translates along the
guideway- 40 through the lost motion stroke‘ it will‘ be ap
preciated. that the etfective length of the stationary link
The mounting means further includes seatv control
means which are operatively connected to the seat~ 24 and
:controlled from the back-rest 26 to increase the angular
displacement between the seat 24 and back-rest 26 in
response to movement‘ of the body-supporting, unit from
th resting position to the reclining position. Speci?cally,
'the seat control‘ means is e?ective during a ?rst phase or
intermediate the pivots‘ 28, 36 will be increased, for a
purpose to‘ he‘ subsequentlyv described;
45
Disposed beneath. the forward end of the seat 24' is a
leg-rest 54 which is movable into elevated? leg-supporting
positions in response to reclining movement‘ of the back
rest 26. The leg-rest 54' is mounted beneath the forward
end‘ of the seat‘ 24 by" ?rst and second link. pairs 56, 58
and 60, 62 which are partially connected between the
seat'andileg-rest. Speci?cally, the lower end. of ‘the link
'portion of the reclining movement to incline the seat 24
between the sitting position and‘ the intermediate tilted
or resting position such that there is relatively no displace
ment' between the seat‘ 24 and back-rest 26 whereby the
chair occupant remains in a substantially seated. attitude
56 has a pivotal‘connection 64'tothe' rearward end of the
but tilted rearwardly; and‘ during a second or further
link ‘58 while the lower end of the link 60 has‘ a pivotal
phase of the reclining, movement to incline the seat be
connection 66 to the rearward end ofth‘e link 62. The
tween the intermediate tilted or restingposition and the
link 58 crosses over the link 60 and has a pivotal connec<
fully reclined position. such that there is substantial dis
tion 68 thereto at‘the’cross-over point. The links 56, 60
placement between the back~rest 26 and seat 24 where
have respective pivotalconnections 52, 70 to the‘ seat‘ at
hy-the chair occupant, is accommodated'in a stretched-out
spaced points thereof, while the links 58',‘ 62. have respec
or reclining attitude. The seat control means is operated
tive pivotal connections‘ 72, 74 to the leg-rest‘ 54"at‘spa'c‘ed
from a depending rigid‘ extension 32 on the back-rest 26
'extendingvbelow the back rest pivot 28» and includes a 60 points thereof. The leg-rest mounting linkage will be
recognized as‘ being of" the type shown and'des‘cribed in
linkage having at least two pivots on the support'provid
US.‘ Patent No. 2,781,824‘ of February‘ 19, 1957, and is
ing a stationary link and movable links pivotally con
subject‘ to a latitude‘ of' change‘ and.‘ variation as‘ is gen
nected to the stationary link, with means mounting one of
erally understood. The leg-rest mounting linkage is c'o~
the pivots on the support for. displacement away from the
ordinated to‘ and controlled‘ from‘ the‘ guiding link 34' by
other of‘the pivots on the support to increase the e?fective
and actuating link 76 which has a‘ pivotal connection 78
length of’the stationary link. In this embodiment, a guid
at its're'arward end‘to the guiding‘link 34“ and has‘ a piv
ing link 34' is provided which has a movably mounted
otal connection 80 at its‘ forward en'dto’ the link‘ 56 of the
pivot 36 on the support 12. ‘The movably mounted pivot
?rst link pair‘56, 58.
36 is constrained‘ within a guiding bracket 38 provided
Provision is made forv blocking the leg-rest‘ mounting
with an elongated slot or guide-way 40 which extends 70
linkage in response‘ to" movement of‘the‘ body-supporting
substantially lengthwise of the support with its rearward
unitv into the resting position, with the-blocked 1eg~rest
‘end being-provided with a seating, or‘ hearing notch 40a
mounting linkage‘ maintainingthe legarest in an elevated
which accommodates the mounting pin-- 36. It will be
leg-supporting'position' as seen in'FIG'S. 2I and 3‘; In this
appreciated that themounting ping36 and the guiding
bracket: 38-with» its el'ongatedl guideway 40 provides for 75 form" of» the invention; the-blocking‘ means is a stop 82
3,075,808
5
?xed to the undersurface of the seat 24 and in position to
abut the ?rst link 60 of the second link pair 60, 62 when
the leg-rest is moved to the required elevated leg'sup
porting position forwardly of the seat, with the body
"A"
U
placement of the chair components will restore the leg‘
‘rest to its stored position, with the back-rest and seat
in the upright sitting position illustrated in FIG. 1.
yFrom the foregoing it will be appreciated that the
described arrangement achieves the requisite coordi
nated movement of the back-rest, seat and leg-rest, with
the leg-rest moving to an elevated leg-supporting posi
supporting unit in the required tilted attitude to establish
the intermediate resting or tilted position.
A more thorough understanding of the construction
and function of my improved reclining chair will he had
tion in response to a ?rst phase of reclining movement
by reference to the following description of an illustrative
and with substantially no change in the angular rela
sequence of operations, making progressive reference to 10 tionship between the seat and the back-rest. In the sec
FIGS. l~3 inclusive:
ond phase or portion of the reclining movement, the
When the chair occupant is seated and leans against the
leg-rest is maintained in the requisite elevated leg-sup
back-rest 26, the back-rest begins to turn about the back
porting position with an increase in the angular relation
rest pivot 28 and the back-rest extension 32 moves
ship between the back-rest and the seat. During the
through a forward and upward arc which imparts a for 15 ?rst phase or portion of the reclining movement the
ward thrust to the actuating link 42. The actuating link
four-bar linkage which provides the seat control includes
42 causes the guiding link 34» to turn in the counterclock~
as a stationary link thereof the portion of the support
wise direction about the mounting pin or pivot 36, with
intermediate the pivots 28, 36; and during the second
the pin remaining in the seating or hearing notch 443a of
or further phase of the reclining movement the length
the guideway 44}. Movement of the guiding link 34; 20 of this stationary link is effectively increased by the
achieves two functions. Firstly, a prescribed ?rst in
displacement of the guiding link 34 and its pivot 36.
clination is imparted to the seat 24, by the seat control
‘The lost motion travel of the guiding link 34 during the
link 48. The length and position of the seat control link
second phase of the reclining movement enables the
48 is so chosen that substantially no angular change
required relationship between the seat and back-rest to
occurs between the back-rest 26 and seat 24 during the 25 be established via the seat control link 48 and further
enables the leg-rest to remain in the elevated or leg
?rst phase of the chair movement. Second, the leg-rest
mounting and controlling linkage is actuated by the ac
tuating i k 75, with the leg-rest 54 being elevated through
a comparatively large swinging movement in the ?rst
supporting position with the leg-rest mounting and con
trolling linkage blocked.
Referring now speci?cally to FIGS. 4-6, there is
phase or portion of the reclining movement such that the 30 shown a second embodiment of. reclining chair of the
leg-rest moves into the leg-supporting position illustrated
double movement type demonstrating features of the
in FIG. 2. When ‘the leg-rest 54 arrives at the elevated
present invention, which has been generally designated
leg-supporting position, the link 61) contacts the blocking
by the reference numeral 110 and includes a support
member $2 which blocks the leg-rest mounting and con
112 having opposite side walls 114, 116 interconnected
trolling-linkage and ends the first phase or portion of the
by appropriate cross-braces or bars 118, 120 and 122
chair movement. The relationship of the back-rest, seat
on which is movably mounted a body-supporting unit
and leg-rest in the intermediate tilted or resting position
including a seat 124 and a back-rest 1Z6.
'
is selected to comfortably accommodate the chair occu
Appropriate mounting means are operatively con—
pant for viewing television, reading, sewing, or other
'nected to the body-supporting unit for mounting the
activities wherein a semi-reclined attitude is appropriate. 4.0 same for movement successively from a sitting position
When the chair occupant desires to assume a more
(illustrated in ‘FIG. 4) into an intermediate semi-reclined
comfortable resting position, such as the fully reclined
position illustrated in FIG. 3, the occupant leans further
against the back-rest 26. Since the leg-rest mounting
and controlling linkage is blocked, a translating force
is exerted by the actuating link 4-2 on the guiding link
resting position (illustrated in FIG. 5) and from the
resting position into a reclining position (illustrated in
FIG. 63). In this embodiment, the back-rest 126 is
controlling linkage is substantially unaffected, with the
leg-rest remaining in the elevated leg-supporting posi
tion. The actuating force normally applied to the leg
rest and its mounting and controlling linkage via the
tially seated attitude but tilted rearwardly; and during a
second or further phase of the reclining movement the
seat is inclined such that there is substantial displacement
mounted on the support 112 at a back-rest pivot 128
contiguous to the lower end of the back-rest 126, and
34 which tends to move the mounting pin or pivot 36
the seat 124 is mounted at the back-rest pivot 128 by
out of the seating notch 49a and to displace the same
means of rearwardly directed rigid hangers 130 ?xed to
along the guideway 40 through a lost motion travel or
the seat 124. In the normal or upright sitting position
stroke. Simultaneously the guiding link 34 continues 50 of the chair, the seat 124 rests on the cross-brace 122 of
to turn about the pivot 36 as the pivot translates. It
the support or frame 112 which serves as a stop. .
will be appreciated that a compound movement is thus
Seat control means are operatively connected to'the
imparted to the seat control link 48 which will bring
seat 124 and controlled from the back-rest 126 to in
about less tilting of the seat 24 during the second
crease the angular displacement between the seat 124
phase of the reclining movement which enables a sub 55 and back-rest 126 in response to movement of the body
stantial increase of the angle between the seat 24 and
supporting unit from the resting position to the reclining
back-rest 26 such that the proper relationship of the
position. Speci?cally, the seat control means is effective
seat and back-rest is established for the fully reclined
during a ?rst phase or portion of the reclining movement
position, as illustrated in FIG. 3. The movement of
to incline the seat 124 between the sitting position and
the chair linkage during the second phase or portion of
the intermediate tilted or resting position such that there
60
chair movement only affects the relationship of the seat
is relatively no displacement between the seat and back
relative to the back-rest. The leg-rest mounting and
rest whereby the chair occupant remains in a substan
actuating link '75 is taken up by the lost motion travel
of the pin 36 within the guideway 49.
When it is desired to restore the chair to the upright
between the back-rest and seat whereby the chair occu
pant is accommodated in a stretched-out or reclining at
titude. The seat control means is operated from a de
pending rigid extension 132 on the back-rest 125 extend‘
sitting position, the chair occupant presses down against 70 ing below the back-rest pivot 128 and includes a linkage
the leg-rest 54 which will cause the pin 36 in the guide
way to return through the lost motion travel to the
seated position within the notch 411a, with a correspond
ing return of the back-rest and seat to the semi-reclined
or tilted position illustrated in FIG. 2. Further dis
having at least two pivots on the support providing a
stationary link and movable links pivotally connected to
the stationary link with means mounting one or" the pivots
on the support for displacement away from the other of
the pivots to increase the e?ective length of the sta
3,075,808
‘8
tiohary link. In this embodiment, the back-rest pivot 128
and controlled from the guiding link 134 by an actuating
serves as the movably mounted pivot of the linkage and
is.constrained within in a guiding bracket 138 provided
with an elongated slot or guide-way 141]) which extends
link 176 which has a pivotal connection 178 at its rear
ward end to the guiding link 134 and has a pivotal con
nection 180 at its forward end to the link 156 of the ?rst
link pair 156, 158.
upwardly and rearwardly from its forward end, with the
Provision is made for blocking the leg-rest mounting
pivot or pin 128 being normally seated for rotation at
and control linkage in response to movement of the body~
said forward end or hearing portion 140a. It will be
supporting unit into the resting position, with the blocked
appreciated that the mounting pin 128 and the guiding
leg-rest control linkage maintaining the leg-rest 154 in
bracket 138 with its elongated guideway 140 provides for
the pivotal mounting of the back-rest 126 and its exten 10 an elevated leg-supporting position as seen in FIGS. 5
and 6. In this form of the invention, the blocking means
sion .132 for turning movement about the mounting pin
128 when accommodated in the forward seating or hear
is a stop 1S2 ?xed to the undersurface of the seat 124 in
ing portion 140a and for the translation or displacement
of the'back-rest 126 and its extension 132 through a lost
motion stroke rearwardly of the chair support, the length
position to abut the ?rst link 160 of the second link pair
160, 162 when the leg-rest is moved to the elevated leg
and path of the stroke being established by the upwardly
inclined elongated guideway 140. As is generally under
supporting unit in the requisite tilted attitude to estab
lish the intermediate resting or tilted position.
A more thorough understanding of the construction
and function of this embodiment of my improved reclin
ing chair will be had by reference to the following de
scription of an illustrative sequence of operations, mak
ing progressive reference to FIGS. 4-6 inclusive:
When the chair occupant is seated and leans against
the back-rest 126, the back-rest begins to turn about the
back-rest pivot 128 and the back-rest extension 132
moves through a forward and upward are which imparts
a thrust to the actuating link 142. The actuating link
causes the guiding link 134 to turn in the counterclock
wise direction about the mounting pin or pivot 136.
Movement of the guiding link 134 achieves two functions.
Firstly, via the seat control link 148, a prescribed ?rst in
clination is imparted to the seat 124. The length and
position of the seat control link 148 is so chosen that
substantially no angular change occurs between the back
rest 126 and seat 124 during the ?rst phase of the move
supporting position forwardly of the seat, with the body
stood‘in the art, other substantially equivalent means may
'be employed for mounting the back-rest. 126 and its ex
tension for pivotal movement about a relatively stationary 20
pivot and for translation relative to the relatively sta
tionary pivot and the support. The linkage further in
cludes a guiding link 134 mounted on the support 112
at a'pivot 136 serving as the second stationary pivot of
‘the linkage. Extending between the back-rest extension 25
132 and the guiding link 134 is an actuating link 142
which has a pivotal connection 144 at its rearward end
to the lower end of the back-rest extension 132 and has a
pivotal connection 146 at its forward end to the guiding
link 134. Extending between the guiding link 134 and 30
the seat 124 is a seat control link 148 which has a pivotal
connection 150 at its rearward end to the guiding link
134-at a point spaced below the pivotal connection 146
to the actuating link 142 and has a pivotal connection
152 at its forward end to the seat 124. The seat control 35
link 148.is disposed in an inclined position extending for
wardly and upwardly from its lower end to its upper end
and is effective in response to turning movement of the
guiding link 134 about the pivot 136 to impart a pre
scribed inclination to the seat 124. The described ar
rangement will be recognized as providing a four-bar
mounting linkage including the back-rest pivot 128 as a
ment. Second, the leg-rest mounting and control linkage
is actuated via the actuating link 176, with the leg-rest
being elevated with a comparatively large swinging move
ment in the ?rst phase or portion of the reclining move
ment such that the leg-rest moves into the elevated leg
supporting position illustrated in 1FIG. 5. When the leg
rest arrives at the elevated leg-supporting position, the
link 160 contacts the blocking member 182 which blocks
the leg-rest mounting and control linkage and ends the
as a second stationary pivot. The portion of the sup
port intermediate the pivots 128, 136, serves as a station~ 45 ?rst phase or portion of the reclining movement. The
relationship of the back-rest, seat and leg-rest in the inter
ary link of the four-bar mounting linkage while the back
mediate tilted position of FIG. 5 is selected to com
rest extension 134 intermediate the pivots 128, 144, the
first relatively stationary pivot and the mounting pin 136
actuating link 142 and the portion of the guiding link
134‘intermediate the pivots 136, 146 serve as the movable
fortably accommodate the chair occupant for viewing
television, reading, sewing, or other activities wherein
links of the four-bar mounting linkage. As the back-rest 50 a semi-reclined attitude is comfortable.
pivot 128 translates upwardly and rearwardly along the
guideway 140 through the lost motion stroke, it will be
appreciated that the effective length of the stationary link
intermediate the pivots 128, 136 will be increased.
When the chair occupant desires to assume a more com
fortable resting position, such as the fully reclined posi
tion illustrated in FIG. 6, the occupant leans further
against the back-rest 126. Since the leg-rest mounting
.Disposed beneath the forward end of the seat 124 is a 55 and control linkage is blocked, a translating force is ex
leg-rest 154 which ismovable into a leg-supporting posi
.tion in response to reclining movement of the back~rest
126. The leg-rest 154 is mounted beneath the forward
end of. the *seat v124 by ?rst and second link pairs 156,
158 and 160, 162 which are operatively connected be
tween the seat and leg-rest. Speci?cally, the lower end
of the link 156 has a pivotal connection 164 to the rear
wardend of the link 158 while the lower end of the link
160 has a pivotal connection 166 to the rearward end of
the link 162. The link I58 crosses over the link 160 and
has a pivotal connection 168 thereto at the cross-over
7-point. The links 156, 160 have respective pivotal con
nections 152, 170 to the seat while the links 158, 162 have
erted by the actuating link 142 and the guiding link 134
on the back-rest extension 132 which tends to move the
mounting pin or pivot 128 out of the seated position 140a
at the forward and lower end of the guideway 140 and to
so displace
the same upwardly and rearwardly along the
guideway 140 through a lost motion travel. It will be
appreciated that as a result of the rearward displacement
of the extension 132 a lesser degree of movement will be
imparted to the seat control link 148 by the actuating link
142 and the guiding link 134 which will bring about less
tilting of the seat 124 during the second phase of the
reclining movement which brings about a substantial in
crease in the angle between the seat and back-rest such
that the proper relationship of the back-rest and seat is
respective pivotal connections 172, 174 to the leg-rest 154
at .spaced points thereof. As in the previous embodi 70 established for the fully reclined position illustrated in
FIG. 6. The movement of the four-bar linkage during the
>ment the leg-rest mounting linkage will be recognized as
second phase or portion of the chair movement only af
being of the type shown and described by U. S. Patent
fects the relationship of the seat relative to the back-rest.
No. 2,781,824of February 19, 1957, and is subject to a
The leg-rest remains in the legesupporting position with
latitude of change and variation as is generally under
stood. The leg-rest mounting linkage ,is coordinated to 75 the actuating force normally applied totheleg-rest via the
3,075,808
.link 176 being taken up by the lost motion travel of the
pin 128 within the guideway 14%.
A latitude of modi?cation, change and substitution is
intended in the foregoing disclosure and in some instances
some features of the invention will be employed without
a corresponding use of other features. Accordingly it is
appropriate that the appended claims be construed broadly
it)
porting’unit including a seat and back-rest movable rela
tive to each other, mounting means including a main pivot
mounting said body-supporting unit for movement succes
sively from a sitting position into an intermediate resting
position with substantially no relative displacement be
tween said seat and back-rest and from said resting posi
tion into a reclining position with relative displacement
between said seat and said back-rest, said mounting means
including a seat control linkage including links movable
and in a manner consistent with the spirit and scope of
the invention herein.
What I claim is:
10 relative to each other in response to movement of said
1. A reclining chair comprising a support, a body-sup
body-supporting unit, said seat-control linkage including
porting unit including a seat and back-rest movable rela
an auxiliary pivot for one of said links and means mount~
tive to each other for inclining and reclining movement
ing said auxiliary pivot for displacement relative to said
respectively, means mounting said body-supporting unit
main pivot, a leg-rest, a leg-rest control linkage operative
for movement successively from a sitting position into an 15 ly connected to said seat-control linkage and to said leg
intermediate resting position and from said resting position
rest and operative to elevate said leg-rest into a leg-sup
into a reclining position, said mounting means being op
porting position in response to movement of said body
eratively connected to said seat for displacing said seat
supporting unit into said resting position, said auxiliary
relative to said back-rest in response to movement of
pivot remaining substantially stationary during movement
said body-supporting unit from said resting position into 20 of said leg-rest into said leg-supporting position and said
said reclining position and including a control linkage
auxiliary pivot being displaced away from said main pivot
having at least two pivots on said support providing a sta
when said leg-rest control linkage is blocked, and means
tionary link, movable links pivotally connected to said sta—
for blocking said leg-rest control linkage in response to
tionary link and means mounting one of said pivots on
movement of said body-supporting unit into said resting
said support for displacement away from the other of said 25 position such that the blocked leg-rest control linkage
pivots, a leg-rest control linkage operable from said body
maintains said leg-rest in said leg-supporting position, the
supporting unit, a leg-rest operatively connected to said
blocking of said leg-rest control linkage being effective
leg-rest control linkage and elevated into a leg-supporting
to provide a reaction force during movement of said body
position in response to movement of said body-supporting
supporting unit from said resting position to said reclining
unit into said resting position, said movable links moving 30 position which serves as a means to displace said auxiliary
relative to each other and said one pivot remaining sub
pivot away from said main pivot.
stantially stationary during movement of said body-sup
4. A reclining chair comprising a support, a body-sup
porting unit into said resting position and said movable
porting unit including a seat and back-rest movable rela
links moving relative to each other and said one pivot
tive to each other, mounting means including a main pivot
being displaced away from said other pivot during move 35 mounting said body-supporting unit for movement suc
ment of said body-supporting unit from said resting posi
cessively from a sitting position into an intermediate rest
tion into said reclining position, and means for blocking
ing position with substantially no relative displacement
said leg-rest control linkage in response to movement of
provide a reaction force during movement of said body
between said seat and back-rest and into a reclining posi
tion with relative displacement between said seat and said
back-rest, said mounting means including a seat control
linkage including links movable relative to each other in
said body-supporting unit into said resting position, the
blocking of said leg-rest control linkage being effective to
supporting unit from said resting position to said reclining
response to movement of said body-supporting unit and an
position which is effective to displace said one pivot away
auxiliary pivot for one of said links, means mounting said
from said other pivot.
main pivot for displacement relative to said auxiliary pivot,
v
2. A reclining chair comprising a support, a body-sup 45 a leg-rest, a leg-rest control linkage operatively connected
porting unit including a seat and back-rest movable rela
to said seat-control linkage and to said leg-rest and opera
tive to each other, mounting means including a main pivot
tive to elevate said leg-rest into a leg-supporting position in
mounting said body-supporting unit for movement succes
response to movement of said body-supporting unit into
sively from a sitting position into an intermediate resting
said resting position, said seat-control linkage being ar
position and from said resting position into a reclining
ranged such that said main pivot remains substantially sta
position said mounting means including, a seat control
tionary during movement of said leg-rest into said leg-sup
linkage including links movable relative to each other in
porting position and such that said main pivot is dis
response to movement of said body-supporting unit, said
placed away from said auxiliary pivot when said leg-rest
seat control linkage including an auxiliary pivot for dis
control linkage is blocked and means for blocking said
placement relative to said main pivot, a leg-rest, a leg-rest 55 leg-rest control linkage in response to movement of said
control linkage operatively connected to said seat-control
body-supporting unit into said resting position such that
linkage and to said leg-rest and operative to elevate said
the blocked leg-rest control linkage maintains said leg
leg-rest into a leg-supporting position in response to move
rest in said leg-supporting position, said main pivot being
ment of said body-supporting unit into said resting posi
displaced away from said auxiliary pivot in response to
tion, said seat control linkage being arranged such that 60 movement of said body-supporting unit from said resting
said auxiliary pivot remains substantially stationary dur
position into said reclining position whereby said body
ing movement of said leg-rest into said leg-supporting
supporting unit may continue to move with said leg-rest
position and such that said auxiliary pivot is displaced
control linkage blocked, the blocking of said leg-rest con
away from said main pivot when said leg-rest control
trol linkage being eilective to provide a reaction force
linkage is blocked, and means for blocking said leg-rest
during movement of said body-supporting unit from said
control linkage in response to movement of said body
resting position into said reclining position which serves
supporting unit into said resting position such that the
as a means to displace said main pivot away from said
blocked leg-rest control linkage maintains said leg-rest in
auxiliary pivot.
said leg-supporting position, the blocking of said leg-rest
5. A reclining chair comprising a support, a body
control linkage being effective to provide a reaction force 70 supporting means including a seat and back-rest movable
during movement of said body-supporting unit from said
relative to each other for inclining and reclining movement
resting position to said reclining position which serves as
a means to displace said auxiliary pivot away from said
respectively, means including a ?rst pivot on said support
main pivot.
ing means for movement successively through a ?rst mo
operatively connected to and mounting said body-support
3. A reclining chair comprising a support, a body-sup 75 tion phase from a sitting position into an intermediate
11
resting position with relatively no displacement between
said seat and back-rest and through a second motion phase
from said testing position into a reclining position with
displacement between said seat and said back-rest, the
mounting means including a linkage having movable links
12
seat such that there is relative angular displacement be
tween said seat and back-rest, means operable during said
second motion phase to displace said one pivot away from
said other pivot, a leg-rest, means mounting said leg-rest
for movement from a stored position to an elevated leg
supporting position, means coupling said leg-rest to said
and having a further pivot of said linkage on said support,
linkage for moving said leg-rest to said elevated leg-sup
means mounting one of said pivots on said support for
porting position during said ?rst motion phase, and means
displacement away from the other of said pivots to in
for blocking movement of said leg-rest relative to said
crease the effective length of the stationary link de?ned
intermediate said pivots, said movable links of said link 10 body-supporting means, the blocking of said leg-rest being
effective to provide a reaction force during said second
age moving relative to each other and being etfective in
response to movement of_ said body-supporting means
through said ?rst motion phase from said sitting position
motion phase which serves as said means to displace said
one pivot away ‘from said other pivot.
into said resting position to impart a ?rst inclination to
said seat such that there is relatively no angular displace~
ment between said seat and back-rest, said one pivot re
maining stationary relative to said snpport during said
?rst motion phase, said movable links of said linkage mov
ing relative to each other and being effective in response
to movement of said body-supporting means through said 20
second motion phase from said resting position into said
reclining position to impart a second inclination to said
References Cited in the ?le of this patent
UNITED STATES PATENTS
268,941
2,615,497
Sands a. ______________ __ Dec. 12, 1882
Luckhardt __2 _________ __ Oct. 28, 1952
2,664,942
Spear _______ _.; _______ .... Jan. 5, 1954
I‘
724,385
FOREIGN PATENTS
Great Britain _____ __'_____ Feb. 16, 1955
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