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Патент USA US2403537

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July 9, 16.
2,403,537
as.‘ MAXSON -
HEAD REST FOR CHAIRS
Filed Jan. 27, 1944
‘I§
5
Is.
INVENTOR.
C'Zareizée
i
Patented July 9, 1946
2,403,537
UNITED STATES PATENT OFFICE
2,403,537
HEADREST FOR CHAIRS
Clarence G. Maxson, Rochester, N. Y., assignor to
Ritter Company, Inc. , Rochester, N. Y., a corpo
ration of Delaware
Application January 27, 1944, Serial No. 519,897
'7 Claims.
1.
This invention relates to head rests for operat
ing chairs such, for example, as those employed
by dentists, surgeons, and the like, and, more
particularly, to mounting means for the spaced
pads of such head rests, one object of the inven- “
tion being to provide an improved mounting for
supporting a pad for resiliently ?exible move
ment for conforming its position to the head of
an occupant of the chair.
,
Another object is to provide a mounting of the
above character having a more sanitary type of
construction by which the pad may be quickly
and easily detached and remounted, for cleaning
and sterilization.
(Cl. 155—173)
2
The ends of arms l2 are preferably ?ared out
wardly, or enlarged, as at l5, and formed with
an annular seat IS on which is positioned the
peripheral portion of a substantially ?at spiral
metal spring l1. An annular part i8 is arranged
to clamp thev spring on its seat, having a ?ange
l9 threadedly engaged with the outer wall of the
bracket end, as shown.
The spring I‘! provides means for ?exibly sup
porting the pad, for which purpose the inner coils
of the spring are positioned in a seat or groove
20 in a metal supporting member 2| formed cen
trally with a cylindrical socket opening 22, as
shown.
A further object is to a?ord such a pad having 15
The pad l4 may be constructed of any known
a simple and practical construction vof such a
or suitable material, such as rubber, plastic com
character as to be economical to manufacture,
position, or the like, being formed, in the present
convenient in use for the dentist or surgeon, and
instance, of a known plastic composition. Fixed
comfortable for the occupant of the chair.
To these and other ends the invention resides 20 to the rear face of the pad, in any suitable man
ner, is a metal plate 23 from which projects a
in certain improvements and combinations of
metal shank 24 having a reduced cylindrical por
parts, all as will be hereinafter more fully de
tion 25 of such diameter as to closely but detach
scribed, the novel features being pointed out in
ably ?t within the socket 22 of member 2!.
the claims at the end of the speci?cation. Shank portion 25 is slotted inwardly from its end,
In the drawing:
7
,
25 as at 26, to receive a forked spring clip 21, the
Fig. 1 is a Side elevation of a head rest em~
central portion of which is formed with oppo
bodying the present invention;
sitely projecting ?anges 28 tightly received in
Fig. 2 is an enlarged view similar to Fig. 1,
corresponding grooves extending laterally from
with some of the parts in section;
the
inner end of slot 26, as shown, to retain the
Fig. 3 is an enlarged, central, sectional eleva
clip in the slot. The angular arms 21 of the
tion of the parts of the pad mounting shown in
clip project somewhat beyond the diameter of the
Figs. 1 and 2;
shank
for frictionally engaging the side walls of
Fig. 4 is a reduced top plan view of the parts
socket 22 to prevent inadvertent detachment of
shown in Fig. 3;
the shank. The spring l1 thus practically forms
Fig. 5 is a plan view of parts shown in Fig. 4
the sole connection between the outwardly ?ared
detached; '
end of the bracket and the part 2! for support
Fig, 6 is a side elevation of the shank portion
ing the pad.
of the head rest pad, showing a spring retaining
It will be apparent from the above construction
means, and
'
that
a mounting is provided for resiliently sup
Fig. 7 is a View similar to Fig. 6, but at right 40
porting each pad for movement normally of its
angles thereto and partly in section.
face and to laterally tilted positions, by which
The invention is embodied, in the-present in‘
stance, by way of illustration, in a head rest pad
the pad is adapted to conform in position to the
head of the occupant of the chair and more com
of the type shown generally in United States
Letters Patent to A. J. May, No. 2,062,592, com 45 fcrtably and ?rmly support the same. Each pad
is adapted, furthermore, to be easily and quickly
prising a head rest bracket arm l0, having a
detached by an upward pull to withdraw its
lower end portion ll adapted for attachment, by
shank from the socket member carried by the
any known or suitable means, to the back of a
spring, so that the pad may be readily cleaned
chair. At its upper end, arm I0 is forked to
provide oppositely extending branches I2, each
terminating in a mounting l3 for a head rest pad,
M. The ends of arms l2 are turned inwardly to
suitably incline the pads for receiving and sup
porting the head of an occupant of the chair,
as well understood in the art.
50
and sterilized, from time to time, in accordance
with sanitary requirements. The construction
comprises metal parts only, of a simple and
durable nature, economical to manufacture, con
venient in use by the dentist or surgeon, and
comfortable and pleasing to the occupant of the
55 chair.
2,403, 587
3
4
grooves of said bracket and member, and a head
rest pad member, one of said members being
formed with a socket and the other of said mem“
It will thus be seen that the invention accom
plishes its objects, and while it has been herein
disclosed by reference to details of a preferred
embodiment, it is to be understood that such dis
bers having a shank portion detachably mounted
in said socket for supporting said pad member
closure is intended in an illustrative, rather than
for resiliently ?exible movement to conform in
a limiting sense, as it is contemplated that vari
ous modi?cations and arrangements of the parts
will readily occur to those skilled in the art, with
position to the head of an occupant of the chair
and for being detached for sterilization.
5. In a head rest for an operating chair, a
in the spirit of the invention and the scope of 10 bracket for said chair formed with an annular
the appended claims.
seat, a supporting member formed with an annu~
lar seat and having a socket opening therein, a
I claim:
1. In a head rest for an operating chair, a
bracket for said chair having a hollow end, a
spiral spring positioned in the seats of said
bracket and member, an annular part threadedly
head rest pad, a substantially spiral metallic
engaged with said bracket for detachably clamp
15
spring housed in said bracket end, and means for
ing said spring on the seat thereof, and a head
detachably connecting one end of said spring
rest pad having a shank detachably mounted in
the
other
end
thereof
with
'
with said bracket and
said socket opening for supporting said. pad for
said pad, whereby said spring resiliently supports
resiliently flexible movement to conform in posi
said pad for movement normal to its face and
tion to the head of an occupant of the chair and
20
also for limited tilting movement toward any
for being detached for sterilization.
side thereof.
'
6. In a head rest for an operating chair, a
2. In a head rest for an operating chair, a
bracket for said chair having an outwardly flared
bracket for said chair, a head rest pad member,
hollow end, ahead rest pad having a supporting
and a metallic spring member connected to said
part detachable therefrom and positioned within
25
bracket, one of said members being provided with
said ?ared bracket end, a substantially ?at spiral
a socket and the other of- said members having
metallic spring member housed in said ?ared
a shank portion detachably mounted in said
bracket end, and means for detachably connect
socket to support said pad member for resiliently
ing one end of said spring member to said bracket
?exible movement to conform in position to the
and the other end thereof to said pad part,
head of an occupant of the chairand for being 30 end
whereby said pad is resiliently supported for ?ex
detached for sterilization.
4
'
'
ible movement normal to its face and for limited
tilting movement toward any side thereof.
3. In a head rest for an operating chair, a
bracket for said chair formed with an annular
seat, a head rest pad member, a metallic spring
_'7. In a head rest for an operating chair, a
35 bracket for said chair, a head rest pad member,
member connected to said bracket and connected
to and supporting said pad member, one of said
members being provided with a socket and the
a substantially spiral metallic spring member,
and means for detachably connecting one end of
said spring member with said bracket and the
other end thereof with said pad member, one of
40 said members being provided with a socket and
the other of said members having a shank portion
other of said members having a shank portion
detachably mounted in said socket for support
ing said pad member for resiliently ?exible move
ment to conform in position to the head of an
occupant of the chair and for being detached for
sterilization, and an annular part threadedly en
detachablylmounted in said socket, whereby said
pad member is resiliently and detachably sup
ported for movement ?exibly normal to its face
and in any laterally tilted direction to conform
gaged with said bracket for detachably clamping
said spring member on said seat.
4. In a head rest for an operating chair, a
bracket for said chair formed with an annular
groove, a supporting member formed with a
groove, a spiral metal spring positioned in the
'
‘in position to the head of an occupant of a chair
andfor being detached. for sterilization.
CLARENCE G.‘ MAXSON. _
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