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Патент USA US3065838

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Nov. 27, 1962
D. F. CALDEMEYER
3,065,828
LOCKING MECHANISM
Filed Oct. 20, 1958
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United States Patent O?lice
&06532
Patented Nov. 27, 1962
1
2
3,o65,s2s
Daniel F. Caldemeyer, RR. 9, Jenníngs Lane,
theless be understood that no limitation of the scope of
LOCKING MECHANISM
the invention is thereby intended, such alterations and
further modi?cations in the illustrated device, and such
Evansville, Ind.
Filed Oct. 20, 1958, Ser. No. 768,455
1 Claim. (Ci. 188--69)
further applications ot the principles of the invention as
illustrated therein being contemplated as would normally
occur to one skilled in the art to which the invention
relates.
Referring now to the ?gures, the applioant's novel
The present invention relates to a looking mechanism
and more particularly to a looking mechanism which is
looking mechanism is disclosed in connection with a re
adaptable for use in connection with a reclining chair 10 olining chair 10 supported by a ?xed base 11 which, in
having a ?xed base and track.
a typical embodiment, is formed from two substantially
As is well known, much oonsideration has been directed
parallel runners lla. The runners lla are adapted to
to designing simple and effective looking mechanisms
receive rails 12 forming a part of the upper or movable
adaptable for use on the aforementioned type chair.
portion of the chair structure on tracks 1117 formed by
Previously, looking mechanisms operable through rotary 15 the top surfaces thereof. The rails 12 are maintained
movement proved satisfactory but even more simpli?ed
in proper position with reference to the tracks 1117 on
and e?íective struotures have been the object of continued
the runners illa by means of a plurality of coil springs
development.
14 which attach to the runners 110 and the rails 12 in a
By virtue of the instant ínvention, the applioant has
Well known manner.
provided a looking mechanism particularly adapted for 20 The conventional upper or seat portion of the chair
use on a reolining chair which is operable by the linear
disposed above the rails 12 includes a frame 16 which
reoeives a seating surface 17, such as a cushion, for
of the control member actually effects unlocking by rea
example, and which has a back portion .18 extending up
son of a cammed portion thereon which permits the
wardly therefrom. The upper chair portion also includes
movement of a spring-urged pivotable looking member 25 armrests 19 which may be suitably a?ixed to the frame 16.
from its corresponding retaining element. Looking at the
The runners llb forming a part of the ?xed base 11
same or another position is simply accvomplished by re
of the chair are maintained in spaced-apart relation by
movement of a control member.
The linear movement
leasing the control member towards its normal position,
several connecting or cross members, which for reasons
which in turn forces the pivotable looking member back
of clarity are not shown herein, but which include a cross
30 member 20. Disposed above the cross member 20, but
into contact with the retaining element.
Moreover, it should be noted that although the ap
between the side members of the frame 16 forming a
plicanfs novel looking mechanism is disclosed herein in
part of the upper portion of the chair, is another cross
connection with a reoliníng chair, it is highly adaptable
member 21. Cross members 20 and 21 serve to position
for use on other structures, as where any movable' mem
the applicanfs novel looking mechanism which is to be
ber(s) are positionable with respect to each other at the
will of the user. Such alternate and additional uses of
discussed in detail herebelow.
Extending rearwardly from cross member 29, i.e. to
wards the back of the chair, is a mounting bracket 22
more apparent from the description of the inventi?on set
which may be seoured thereto through conventional nut
forth herebelow.
and bolt means (not shown). Pivotally supported on the
A principal object of the present invention, therefore, 40 mounting bracket 22 at 22?? is a looking member 25 in
is to provide a novel looking mechanism particularly
the form of a ratchet bar having notches or serrated
adaptable for use in connection with a reclining chair.
teeth disposed on one side edge thereof. The looking
Another object of the present invention is t?o provide
member 25 ís continually urged toward the front of the
a looking mechanism for a reclining chair which is con
chair through a conventional torsion spring 26, shown
trolled by a linear movement from a normally locked
more particularly in FIG. l.
position.
A mounting bracket 23, similar in structure to the
A further and more general object of the present in‹
mounting bracket 22, extends from cross member 21 and
vention is to provide a looking mechanism which is adapt
may be secured thereto by conventional nut and bolt
able for use in conjunction with any movable member(s)
means 24. The mounting bracket 23 has a retaining ele
so that the member(s) may be retained in any desired 50 ment 30 in the form of a looking bar extendir?g through
position with respect to each other.
the U-like end portion thereof which is a-dapted to co
Other ?objects and a better understanding of the in
operate with and be recived in one of the teeth or serrated
vention will become more apparent from the following
portions disposed on the side edge of the looking mem
description, taken in conjunction with the acoompanying
ber 25.
drawing, in which
The applicant°s novel looking mechanism includes a
FIG. l is a fragmentary View in side elevation, partial
control member 32 having an end portion 3261 disposed
the applicant's novel looking mechanism will become
ly broken away and in section, showing the novel lock
ing mechanism forming the instant invention;
through and supported by the mounting bracket 23, with
the othervend portion 3212 thereof, which is enlarged for
FIG. 2 is a view in horizontal section, taken at line
ease of use, being supported by the frameló of the upper
2--2 of FIG. 1 and looking in the direction of the arrows, 60 portion of the chair. A cotter pin 33 is provided proxi
showing the looking mechanism in a normally locked
mate the end portion 32a of the control member 32 to
position;
FIG. 3 is an enlarged fragmentary view, partly in sec
prevent the withdrawal thereof from its mounted position
in the chair.
tion, showing details of the looking mechanism in the
locked position of FIG. 2; and,
` The control member 32 has a oammed portion formed
65 thereon which is de?ned by a uniform smaller diameter
FIG. 4 is another view of the looking mechanism of
FIG. 3, With the looking mechanism in an unlocked
portion 320 which ?ares outwardly at 32d to the normal
position.
when the looking mechanism is in looking position, the
diameter of the shaft. The structure is arranged so that
'For the purposes of promoting an understanding of the
?ared portion 32d of the control member 32 engages the
principles of the invention, reference will now be made to 70 looking member 25 and forces the latter into engagement
the embodiment illustrated in the drawing and speci?c
with the retaining element 30 (see FIG. 3). Conversely,
language will be used to describe the same. -It will never
when the control member 32 is in an unlocked position,
3
member With reference to a second member comprising
a bracket ?xedly mounted on said ?rst member, a looking
member pivotally mounted on said second member, said
braoket having a retaining element forming a portion
the small diameter portion 320 thereof is adjacent the lock
ing member 25 and, as the looking member '25 is spring
urged towards the front of the chair, the looking mem
ber 25 disengages itself from the retaining element 35)
(see FIG. 4) and the upper portion of the chair may be
moved With reference to the base 11 thereof.
The control member 32 is spring-urged to a normal
looking position by a coil spring means 35 which is seated
thereof adapted to be selectively engaged by said looking
member, said looking member being in the form of a
bar having a serrated edge, spring means normally urging
said serrated edge of said bar forming said looking Inem
ber away from said retaining element of said bracket, a
between a side wall of the mounting bracket 23 and a disc
36 positioned on the control member 32 by `a cotter pin
38. Thus, to unlook the chair, the control member 32 is
pushed inwardly through a linear movement, and when
the user releases the control member 32, a locked position
is automatically assumed.
From the preceding it should be apparent that the ap
plicant has provided a novel looking mechanism which
may be simply and effectively released with a simple linear
motion of a control member. The looking mechanism
is arranged so that it is in a normally locked position and
when the control member is released after use, the con 20
trol member automatically assumes such locked position.
It should be further apparent that the looking mech
anism disclosed herein in connection with a typical reclin
ing chair is equally adaptable for use in connection with
any members which are positionable with respect to each 25
other, as mentioned hereabove.
Moreover, the applicanfs novel looking mechanism is
susceptible to various changes within the spirit of the in
vention. For example, the placement of the mounting
braokets and the broad dimensioning disclosed by the 30
?gures herein is arbitrary and equally eñfective results may
be achieved through variations in such position and di
mensions. T'hus, the above description should be con
linearly movable control member having a camming por
tion thereon extending through said bracket, and spring
means encircling a portion of said linearly movable con
trol member normally urging said camming portion there
on into engagement with said looking member and the
latter into looking engagement with said retaining element.
References Cšte? in the ñle of this patent
UNITED STATES PATENTS
1,252,238
Clark ________________ __ Jan. 1, 1918
1,279,353
Kelly et al ____________ __ Sept. 17, 1918
1,654-,321
Collins ______________ __ Dec. 27, 1927
1,672,128
Klausmeyer et al ________ __ June 5, 1928
1,826,906
2,005,227
2,119,638
2,161,661
Townsend ____________ __ Oct. 13,
Johnson ______________ __ June 18,
Klampferer ____________ __ June 7,
Arens ________________ __ June 6,
2,477,865
2,580,165
Du Charme ___________ __ Aug. 2, 1949
Fox _________________ __ Dec. 25, 1951
2,606,594
Caldemeyer __________ __ Aug. 12, 1952
2,797,737
2,826,286
2,860,731
Burton ________________ __ July 2, 1957
Boyce _______________ __ Mar. 11, 1958
Hause _______________ __ Nov. 18, 1958
207365
Canada _______________ __ Jan. 11, 1921
FOREIGN PATENTS
sidered illust?'ative and not as limiting the scope of the
following claim.
I claim:
A push~type looking meohanísm for positioníng a ?rst
1931
1935
1938
1939
35
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