US1810531A - Refrigerator latch - Google Patents

Description

June 16, 1931.

REFRIGERATQR LATCH Filed Jan. 21, 1929.

4001.24 Rug/1v 1 the common subject matter.

Patented June 16, 1931 UNITED STATES PATENTZOFFICE I ADOLPH RUBIN, or s'r. LOUIS, ivrrssounr REFRIGERATOR LATCH Application filed January 21, 1929. Serial No. 333,765.

An object therefore, of this invention is to provide a latch in which the bolt after the door is opened,will be held in withdrawn po sition until the door is closed. 2

Another object is to provide a latch that can be opened from the inside of the door. 115 In opening .a cooler door, a person very often has his hands engaged with articleshe is removing, and it is, therefore, desirable to provide means whereby the door can be opened with the foot. Another object of this invention is, therefore, to provide a latch that can be opened from theinside by a foot lever attachment 1 r '1 I Another object is to provide locking means for sucha latch.

7 A further object is to provide a latch which is simple of construction, economical to manufacture, pos tive in operatlon, durable 1n use, andeasy of repalr.

Otherobjectswill appearfrom the follow- T ing description taken-in connection withthe accompanying drawings, in which Fig. 1 is a rear elevation; i I. i Fig. 2 is a sectional view-talmn on line 2-2,

ig. 3 is: a sectional view taken on line 33,Fig.2;" o.

Fig. 4 is a sectional view taken -on line 4.--4,Fig.1; I Fig. 5 is a view taken on line 55,' Fig. 1.

The improvements claimed in this application are modifications of the invention illustrated and described in applicants co-pending application, Serial No. 333,764, filed J anuary 21, 1929, in which applicationis claimed 'The base,-or casing, of the latch may be of anypreferred form. 'As shown in the drawings, the casing 1 has the attaching flanges 2. Supported on the casing .are two ears, 3.

5 Pivotally mounted on the ears 3,by means of the pin 4: is a latching element. The pin 4 may besecured in place-by a screw or key inserted at 5 I The latching element comprises the sleeve 6 to which is atttached the handle 7 an arm 8- supporting the bolt 9. This element is preferably formed integrally and may be cast in one piece. I

j A torsion spring 10 is placed within the sleeve 6 about the pin 4, with one end in on m gagement with the sleeve at 11 and the other is end in engagement with abushing 12., The I tension of thespringmay be secured oradj Listed by means of a stud 13 passing through an ear 3 into one of the several holes-14 in 9 the bushing. A hole 15 is provided in the periphery of the bushing in, order to accomodate a pin so that the tension may be held while adjustment of the stud 13 is being made. a p,

A trigger 16 is pivotally mounted in the casing on the pin 17 The'trigger has a projection 18 adapted to strike an abutment 19 on the keeper (shown'in dotted line, Fig. 2) There is arecess in the trigger havingaplane v surface20 adapted to-engage the plane surface of the lug 21 on the bolt 9.

H The triggeris actuated by the spring 22 which has an arm 23 pressing against the top ofthe casing and bearing against a flange 241 in the casing to prevent displacement. The

7 lever 25 of the spring engages the triggerilG and hasa projection or shoulder 26 for the -purpose gof preventing displacement. The

spring'also has a projection 27 adapted to pass between the pin 17 andthe wall of the casing to prevent itslateral displacement.

' Theboltmay have a roller 28 at its end to engage the keeper. The bolt has the reduced shank 29 and the shoulder30 to form a journal for the roller. The rollerhas on its inner surfacea circular groove 31 to register with a like groove 32 in the shank 29, the grooves 31 and 82 being sopositioned as to register with each other. Aresilient arcuatemember 33 of circularcross section is provided which Will fit'within one of the grooves but which has a tendency to spring out of that groove and into theother groove when the roller is in position, such member being larger than the groove in which it has a tendency to bear. For instance, the groove 32 is made large enough to accommodate the arcuate member 33, while the groove 31 is smaller; the arcuate member 33 is compressed into the groove 32, the roller 28 is pushed onto the shank 29, and when the groove 31 is in registry with the groove 32 and the arcuate member 33, the member 33 will spring into the groove 31, but will also partially project into the groove 32 and thus secure the roller against'displacement. 7 I j p The latch may have mechanism to permit its being opened from the inside of the door. A rocker shaft 34 fits in a bearing 35 in the casing, and has attached'to it the lever 36 which engages the forked lever 37 integral with the sleeve 6, and, therefore, integral with the bolt. On the inside of the rocker shaft is keyed the hand lever 38. Flanged washers 39 may be provided to furnish bearings in the door for the rocker shaft, and the bearing plate 40, with attaching flanges, may be provided to hold one of the washers 39 in position.

The inside mechanism may also include a foot attachment to permit the latch being opened by foot pressure. A bar 41 connects the lever 38 with a foot lever 42 having a foot pedal 43. The foot lever 42 may be pivotally mounted on a l g 44 having flanges 45 to permit its being fastened to the door.

To provide locking means for the latch, the lug 46 depending from the latching element, extends through a slot 47 inthe top of the casing, and has a hole 48 to accommodate the link of a padlock, so arranged that it will be outside of the casing when the latch is closed, and inside the casing when the latch is open.

In operation, a movement of the handle 7 withdraws the bolt 9 from the keeper, whereupon the lug 21 on the bolt is caught in the recess 20 of the trigger 16 and helduntil the trigger is released. Similarly the latching element may be operated through its forked lever 37 cooperating with the lever 36 on the rocker shaft 34, by movement of the hand lever '38 or the foot pedal 43. Upon closing the door, the projection 18 Y on the lever strikes an abutment 19, on the keeper, shown in dotted lines, Fig. 2, tripping the trigger and releasing the latching element, which moves the bolt into its keeper by reason of the operation of the spring 10.

It will thus be seen that the invention accomplishes its purpose. A latch is provided in which the bolt is held in withdrawn position until the door is closed. A latch is also provided which may be opened by the hand or by the foot fromthe inside of the door. Means are also provided for locking. such a latch. It will be seen that an article is pro vided which is simple of construction, economical to manufacture, positive in operation, durable inuse, and easy of repair.

It is to be understood that various parts of this invention are capable of independent use without the incorporation of all of the elements and improvements described; and accordingly various changes, omissions and additions may be made within the scope of the claims, without departing from the spirit of this invention.

t is also to be understood that the invention is not limited to the means specifically illustrated and described, but that changes may be made, within the scope of the claims, without departing from the spirit of this invention.

Having thus described the invention, what is claimed is: I

1. A refrigerator door latch comprising a casing having attached flanges, a handle and bolt pivotally mounted on said casing about the same axis for rotationin a plane transverse of the door, a springto actuate such latching member, a trigger adapted to engage and hold the latching member in inopei ative position while the door is open, and a spring to actuate said trigger.

2. A refrigeratordoor latch comprising a casing having attaching flanges, a latching member including integrally a handle and bolt pivotally mounted'on said casing for rotation in a plane, transverse of the door, a spring to actuate said latching member, a trigger adapted to engage and hold the latching member in inoperative position while the door is open, and a spring to actuate said trigger.

3. A refrigerator door latch comprising a casing having attaching flanges, a latching member including integrally a handle and bolt pivotally mounted on said casing, a spring to actuate said latching member, a trigger adapted to engage and hold the latching member in inoperative position while the door is open and a spring to actuate said trigger, said spring having an arm to engage the casing, an arm to engage the trigger and means for 're'tai'ningthe spring in position comprising a projection to lie between the trigger pivot pin and the casing, a projection to engage the side of the trigger and a flange in said casingto engage one of the arms.

4. A refrigerator door latch comprising a casing having attaching flanges, a latching member including integrally a handle and bolt pivotally mounted on said casing, a spring to actuate said latching member, a trigger adapted to engage and hold the latching member in inoperative position while the door is open, a spring to actuate said trigger and projections on said sprin 'to prevent displacement thereof.

5. A refrigerator door latch comprising a casing for' mounting on the outside of the door, a latching element, a lever on said latching element, a rocker shaft adapted to pass thru the door, a bearing in said casing adapted to engage the rocker shaft, a lever on said rocker arm adapted to engage the lever on the latching element, flanged washers on said rocker shaft, a bearing plate having attaching flanges adapted to be inserted on said shaft on the inside of the door and a handle on one end of the rocker shaft.

6. A refrigerator door latch comprising a casing for mounting on the outside of the door, a latching element including integrally a handleand bolt pivotally mounted on said casing, a lever on said latching element, a rocker shaft adapted to pass thru the door, a lever on said rocker arm adapted to engage the lever on the latching element, and ahandle on one end of the rocker shaft.

7. A refrigerator door latch comprising a casing for mounting on the outside of the door, a latching element, a forked lever on said latching'element, a rocker shaft adapted to pass thru the door, a lever on said rocker shaft adapted to engage said fork, and a handle on one end of the rocker shaft.

8. A refrigerator door latch comprising a casing having attaching flanges, a latching member pivotally mounted on said casing and a lug on said latching member'positioned and adapted by rotation of the latching ele-' ment to pass through a slot in the casing and so situated that a hole in the lug will lie outside the casing when the latch is closed and inside when opened, whereby a padlock inserted in said hole will prevent the operation of the latch.

In testimony whereof I afiiX this 22nd day of August 1928.

ADOLPH RUBIN.

my signature

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