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Патент USA US2106509

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Jan. 25, ‘1938.
Original Filed April 30, 1951
0 ? 10 0 0
Patented Jan. 25, 1938
Harry F. Smith, Dayton, Ohio, assignor to Gen
eral Motors Corporation, Dayton, Ohio, a cor
poration of Delaware
Original application April 30, 1931, Serial No.
533,996. Patent No. 1,979,291, vdated Novem
her 6, 1934.
Divided and this application
August 30, 1934, Serial No. ‘742,136
8 vClaims. (Cl. 16—180)
Fig. 1 is a front view of a cooling unit pro
This application is a division of my copending
application S/N 533,996 ?led April 30, 1931 and vided with my improved hinge construction;
Fig. 2 is a side view of the cooling unit shown
ilsgsizsued as Patent No. 1,979,291, November 6,
in Fig. 1, and
This invention relates to refrigerators and
more particularly to an improved hinge construc
tion for supporting the door closing the entrance
to a compartment of the refrigerator.
Refrigerators are often provided with various
10 types of porcelain coated compartments, some of
which are provided with doors.
My invention is disclosed, for the purpose of
illustration, as applied‘ to a cooling unit. ‘
Referring to the drawing, there is shown a cool
ing unit 20 having a reservoir portion 2| which 10
For example, a
is provided with a conduit 22 for supplying re~
freezing compartment for freezing ice cubes is
usually provided in the cooling element or evap
orator of refrigerators of the household type.
It is desired to keep this compartment below
freezing temperatures at all times while it is
usually desired to cool the remaining portion of
frigerant to and for withdrawing refrigerant
from the cooling unit 20. Beneath the reservoir
portion 2! there is provided a freezing compart
the interior of the refrigerating cabinet to a
lesser degree. In order to keep the freezing com
20 partment as cold as possible, it is desirable to
provide a door for closing its entrance and pref
erably to provide a self-closing door. The pro
vision of a suitable hinge for the door particu
larly a hinge involving a door closing means is
difficult because it is often desired to coat
[12 iii
all the exterior portions of the cooling unit with
porcelain. This difficulty is also found in hinges
for other types of compartments coated with
porcelain and having porcelain coated doors.
30 Many different types of hinges have been tried
but these hinges were found to be objectionable
because they squeak and because they chip the
porcelain from portions of the door and the cool~
ing unit, particularly when attaching the same.
Other objectionable features of the hinges were
that they were expensive, that they were difficult
to attach to the porcelain surfaces, and that they
were not simpli?ed to a su?icient degree.
Consequently one of the objects of the inven
40 tion is to provide an improved simpli?ed hinge
which will not squeak, or mar the ?nished sur
faces of the door or the structure to which the
door is attached.
Another object of the invention is to provide
45 an improved hinge of rubber material having
means for keeping the door in a desired position.
A further object of the invention is to provide
an improved and facile means for fastening a
hinge to a door and a door supporting structure.
‘Fig. 3 is a sectional view on the line 3-3 of
ment 23 for freezing ice cubes therein which'is 15
provided with a U-shaped refrigerant wall 24 for
enclosing the freezing compartment on the bot
tom and sides. The refrigerant walls 24 comprise
a pair of metal sheets 25 and 26 which are main
tained in spaced relation by a plurality of pro-' 20
jections 21. Refrigerant ?lls the spacebetween
the plates 25 and 26 and provides refrigeration
for keeping the freezing compartment below "
freezing temperatures and for keeping the in
terior of the refrigerator cabinet cooled to a de
sired degree. The freezing compartment 23 is
preferably provided with a suitable rear wall,
not shown. The cooling unit 20 is preferably sup
ported within the refrigerator cabinet by a sup;
porting bracket 28 which is preferably secured I
to the reservoir portion 2| of the cooling unit’.
In order to prevent the cold air from escaping‘
from the freezing compartment and for prevent
ing the access of warm air to the freezing com
partment, a door 29 is provided for closing the
front entrance thereto. The door' 29 is pro
vided with an ornamental raised portion 42 from
which extends, on one side of the door, a pair
of recesses 36 and 43.
These recesses are pro
vided for receiving a hinge.
According to the present invention a pair of
pivot pins 30 and 3| are fastened to the side of
the refrigerating walls 24 and extend upwardly.
.These pins are coated with porcelain along with
the remaining portion of the cooling unit in
cluding the door 29. In order to provide a‘ hinge
which will not chip the porcelain, I have dis
carded all metal hinges which have been‘ used
for such a purpose. In place of the metal ‘hinges,
prefer to use rubber hinges 32 and 33. These
invention will be apparent ‘from the following de- I
rubber hinges are preferably composed of a single
scription, reference being bad to the accompany
Further objects and advantages of the present
ing drawing, wherein a preferred form of the
present invention is clearly shown.
In the drawing:
piece of homogeneous, resilient rubber composi
tion, but if desired other materials of rubber com-y
position may also be used such as rubberized fab 55
ric or a material composed of alternate layers of
rubber and fabric. My preferred type of hinge
has an eye portion 34 which ?ts over the pivot
pin 3| and has portions projecting in either di
rection therefrom. One portion 35 extends from
the eye portion “and is shaped and curved to‘
?t into the recess 36 which is provided therefor
in the door 29. This projection 35 is clamped
to the door by means of the screw and nut 3'1;=
the protecting washer 38 on the exterior of the,
door, and the clamping plate 39a for clamping
the end of the projection 35 tov theirear- side
of the door.
This construction prevents the chipping of the
porcelain coating of the door around the screw
31 and the washer 38. In assemblingfshould-the
screw and nut 31 be screwedtoo tight, the-rubber
other situations, particularly where it is desired
to prevent the marring of a frangible attaching
While the form of embodiment of the inven
tion as herein disclosed constitutes a preferred
form,‘ it is to be understood that otherwforms
might'be adopted, all coming within the scope
of the claims which follow.
What is claimed is as followsf
1. A rubber-like door hinge comprising a mem
ber of rubber-like material having an eye portion
with a long straight cavity extending within the
eye portion for -1 receiving a pivot pin, a ?at
fastening portion-extending from the eye por
tion, a, thick resilient portion extending from
the. eye'portion for providing a resilient force
tending to turnthe member about the pivot pin,
portion 35 between the clamping plate 39%and and all of said portions of said member being
the door 29 will yield and prevent an excessive. formedintegral with one another.
20 pressure andalso distortion from being applied
2. A single member serving as a pivot-type 20
to ' the‘ porcelain‘ coating. aroundluthe screw p31
and the washer 38; The eye portion 34 ,:of .the .
hingei va 7 spring ‘for theuhinge, and :an insulator
hinge. 33 easily slips _over the .-pivot 1 pin '3 I vand
obviously no trouble is had from this; connection;
ofe-a single piece. of rubber-likez-material ‘havingn
In! ordere to keep-the - door closed. I’ have pro
vided a resilient projection 39 which extends in)
the opposite direction from-the l,.eye-~31l and con
tacts with the: exterior adjacentytherefrigeratingZ
wallild. In Fig. .3 this,_projection 739g isshown
30 Y curved-because “of .> the v tension‘ in; this projection -
which .lpresses - against the adjacent wall-v of _,the
cooling»: :unit 24 . and ; fulcrum's; the: projection 35 -»_
between i the . door ; support :and- the door.;formed'r
an eye portion with a cavity therein for receiv-'.
ing. a pivot pin,, a fastening; portion» extending 25'.
from; the eye _ portion tion-fastening 1. the; rubber
like member some object, andiira resilientipor
tion extending. from; the ;eye ‘portion .1 adapted to‘v
contact ;-with 7' an obj eat. for resiliently urging, the
rubber-like member to turn about the pivot pin;
3. As ~an=article of :manufacture :a; doonhinge
comprising a single member ,of flexible material-V f
of the-hinge. andrthe door 29gto closingnposition‘
having an eye-portion iprovided-v-with’la cavity
about thepivot pin 3 l .
By means of this;projectione39~tthe_ door is
for receivlngasupporting pin,’ and integral pro- jecting means’ extending :_}from the eye "portion, ; ‘
resiliently urged ' into 1 its desired “closed position. .>
By ,the use of ' this simple. integral; projection. '39. \
one of saidpro-jecting:meansiadaptedrto: support the door; - or closure ,member. - and-the :other' pro,
noeadditionalgdevices arevrequired for-keeping ; jecting means, providing-spring _-.means1for< resili=v '
the door; 29 in the closed position._, By’ providing _
ently-V holding; the’ door, I member in ». a
a resilient-means fore-urgingqthe door: intothe
position; 7
closed position‘ it ‘is assuredthat ‘the door. will
4. A door hinge comprising-a memberhavingg
be opened ~ only when .it is- desired ~ to have access
a mounting portionwith-an; opening extending '
through ;the freezing compartment and/‘not at
any otheretimee- It~=wil1:.thus;.-be .seen- that .my'
therethrough for’ the reception of a pin, said-v
member also having- a fastening portion extend
hinge-is of exceedingly simple .-construction. _It' ing from- said; mounting portionv thereof-,-v said;
requiresbut a ‘unitary-piece of rubber of a de
sired-con?guration,» a ‘screw and ‘nut, a Washer,
a clampingplate-anda pivot pin: It requires
mounting portion ofsaid member having a por~~
tion extending therefromgadaptedrto prevent ro-v
tation thereof about the pin-adapted to vberlocated -.
no oiling: does not squeak and does not‘ mar loin. inv said opening, and i all- of . ‘said ‘portions ‘of, said;
It is. member being formed integrally with one another '50
exceedingly simple to assembleand-rits parts can , of rubber-like materiaL:
chip-the porcelain- or any other;?nish,=
be manufacturedat, a verylowecostt
5.‘ A door hinge,comprising-,-~a member having
At-gthe' edgeiof ;the~-»door;ropposite ‘the hinge, a thick mounting vportion with an, opening-ex»
the>doorr 29 is provided \ with tan» integral > knob 1 tending therethrough for they reception ‘of a pin,-v
All-‘which is pressedj'rin ‘the door-He In order-‘to said member also having ,arrelatively» thin fas
prevent chipping of-q'the iporcelainaandijarring» tening portion extending :from said thick mount— 55
when: the door swings; to :its- closed-position under ing portionithereof, said ‘thick mounting Y portion theiin?uence of the rubber-hinge33,_a rubber of said member having a portion extending there
bumper M is providedi-adjacent- the .knob 40 and from adapted to prevent rotation thereof about
60 has a projecting portion {of vaasli-ghtly- larger,
the pin adapted to be located ~in»said opening, 601
size thanmthe interiorjof the knob~4ll~which ex
and allof said-portions of saidmember being
tends; into the interior of‘ the knob and presses ‘ formed integrally with one another of'rubberr
tightlyagainst its sides to hold the rubberbumper >
Mfin its proper position. .v This .irubber bumper
like material. 7
cushions thE‘ShOCk which is caused by ‘the swing
ing/of thedoorl to the closed position. By- cush
ioning the shockiwithvrubber, noise is prevented
6. A door hinge comprising, a member having
a thick portion adapted to be mountedon a wall 65
of a chamber having an opening and a door for
closing the opening,‘ said member having a rela
as ~well-‘as the.chipping-oftheporcelain upon’
the. interiorysurface of the door and the vforward
edge of the refrigerating ‘wall 24.“
mounting-portion thereof and adapted to be fas
Although. ‘my improved hinge ' is particularly
adapted for use with a porcelain coated door and
compartmentnt is notilimited to such a rise'and
tively thin portion extending _from_ the thick.
teneduto the chamber vdoor,__said thick portion of
said member having ,_a part thereof engaging‘
the‘ chamber. wall to preventhrotation .of a the -c
member about its mountingaandvsaid portions. of,
75 obviously it is capable; of being; used-in-many, said member being formed integrallyy‘with one
3 .
another of rubber-like material and cooperating
to urge the door into closed position.
7. A door hinge comprising, a member having
rubber-like material and cooperating to urge the
door into closed position.
8. A door hinge comprising, a member having
a thick portion adapted to be mounted on a wall
of a chamber having an opening and a door for
a mounting portion adapted to be secured to a
wall having an opening and a door for closing
the opening, said member having a flexible fas
closing the opening, said member having a rela
tively thin portion extending from the thick
mounting portion thereof and adapted to be fas
tened to the chamber closing door, said member
10 also including another portion extending from
said thick portion thereof in a direction oppo
site to the extension of said relatively thin por
tion and adapted to engage the chamber wall to
prevent turning of the thick portion of said
member, and all of said portions of said mem
ber being formed integrally with one another of
tening portion extending from the mounting por
tion thereof and adapted to be secured to the
door, said mounting portion of said member hav
ing a part thereof engaging the wall and tend 10
ing to prevent movement thereof relative to the
wall, and said portions of said member being
formed integral with one another of resilient
non-metallic material and cooperating to urge
the door into closed position.
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