US2680638A

US2680638A - Lock for doors or other closures

Info

Publication number: US2680638A
Application number: US315255A
Authority: US
Inventors: Alfred H Groeger
Original assignee: KASON HARDWARE CORP
Current assignee: KASON HARDWARE CORP
Priority date: 1952-10-17
Filing date: 1952-10-17
Publication date: 1954-06-08
Anticipated expiration: 1971-06-08

Description

June 8, 1954 Filed Oct. 17, 1952 A. H. GROEGER- LOOK FOR DOORS OR OTHER OLOSURES 2 Sheets-Sheet l INVENTOR alfred HGroe er MM mTORNEY June 8, 195

A. H. GRQEG 2,680,638 LOCK FOR DOORS OR OTHER CLOSURES Filed Oct. 17, 1952 2 Sheets-Sh 2 40 -7 6/ 57, I if;

' INVENTOR Patented June 8 1954 UNITED STATES PATENT OFFICE LOOK FOR DOORS OR OTHER CLOSURES Alfred H. Groeger, New Hyde Park, N. Y., assignor to Kason Hardware Corporation, Brooklyn,

11 Claims. 1

This invention relates to locks for doors or other closures, and, more particularly, to looks for refrigerator doors. The particular embodiment of the present invention, which is illustrated in the drawings and which will be described hereinafter in greater detail, comprises generally, a base fixed to the door, a yieldable latch on the base and engageable with a. keeper on the door jamb, a movable handle on the base for moving the latch away from the keeper, and means for locking the handle to prevent movement thereof.

It is well known that thieves sometimes enter a store or warehouse which has a refrigerator and force the proprietor or other person into the refrigerator, and then look the refrigerator door by dropping a headed pin through registerable openings in the handle and base, whereby the handle is prevented from moving. Under these circumstances, in the devices of the prior art, it is impossible to unlock the refrigerator door from the inside without removing the door or dismantling the lock. To perform such operation under conditions of extreme cold has often proved to be impossible. While the prior art shows such bars and other means for retracting the latch from the inside of the door, the problem of quickly and easily opening the door from the inside when it has been locked from the outside, as by a padlock or pin, has not ben satisfactorily solved by the prior art.

It is, therefore, a principal object of the present invention to provide a simple and efiicient means for retracting the latch from the inside of the refrigerator even if the handle is locked in place by the insertion of a pin, nail, or even a padlock through the registering opening in the handle and in the lock base. i

It is another object of the present invention to provide a door lock which will serve under ordinary circumstances as a yieldable latch, and have the additional feature of emergency release when needed.

It is still another object of the present invention to provide a door lock which may be locked by a padlock or pin, which prevents retraction of the latch bolt by means of a jimmy or other tool.

It is still another object of the present invention to provide a door lock having the characteristics mentioned in the foregoing paragraph in which the latch bolt is actuable independently of the handle and from the inside of the door.

It is a further object of the present invention to provide a door lock of the type described which is characterized by its simplicity and durability, which is effective for its intended purposes, and

which can be manufactured and sold at a reasonable cost.

Other objects of the present invention will become apparent upon reading the following specification and referring to the accompanying drawings, which form a material part of this disclosure.

The invention accordingly consists in the features of construction, combinations of elements, and arrangements of parts which will be exemplified in the construction hereinafter described and of which the scope will be indicated by the attended claims.

In the drawings:

Fig. l is a side elevational view of a device constructed in accordance with the present invention;

Fig. 2 is a view similar to Fig. 1 but in section, and showing a locking pin in position and the push bar extending through the door;

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2;

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 2;

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 2; and

Fig. 6 is a top plan View of the device.

Referring now more particularly to the drawings, Ii]. designates a refrigerator door and l l a door jamb for the door. The door has outer and inner surfaces l2 and I3, respectively, and an edge portion I l which overlaps the door jamb ll. Attached to the portion l4 by any suitable means is a rubber gasket I5 Which abuts the door jamb ll when the door is in closed position. The door is also provided with a transverse opening [6 extending therethrough for a purpose to be described hereinafter.

On the outer surface I2 of the door I0 is mounted the lock, generally designated 20, of the present invention. The lock 20 includes a base if having laterally extending

flanges

22 and 23 .and provided with a cored under surface 24a.

The laterally extending

flanges

22 and 23 are provided with spaced apertures or

bolt holes

24, 25, 25 and 21 through which fasteners may be passed to secure the base to the door It] with the undersurfaces 24 facing the outer surface l2 of the door. The base 29 is arranged with its forward end 28 adjacent the overlapping portion Id of door it and is formed adjacent the end 28 with a pair of transversely spaced upstanding cars 29 and 3t. Extending rearwardly from the

ears

29 and 3% are side Walls of reduced height 3| and 32 which rise adjacent the rearward end of the base 2! to form another pair of transversely spaced

upstanding ears

33 and 34. The

ears

29 and 30 are joined forwardly by the portion 35, and the ears 33 and 3d are joined rearwardly by the portion 36.

Intermediate the ends of base 2! and the side walls 3! and 32 and spaced from the latter, is a transversely disposed upstanding wall 40 having an aperture ti extending therethrough. Forwardly of the wall Ml between the side walls 3! and 32, the base 2! is shaped to form a cylindrical supporting surface 42, there being an opening 43 extending through the latter surface. Rearwardly of wall 40 the side walls 3'! and 32 are widened as at 45 and 45, whereby the space therebetween is reduced. Extending through the base 2| in registry with the opening it is an aperture 46 which opens into the space between wall portions M and 55. In the space between

wall portions

44 and 45, contiguous thereto extending therealong are spaced slots 57 and 38 for a purpose to be described hereinafter.

Adjacent the forward end 28 of the base 2! and extending therethrough is a latch or latch bolt 50 having its projecting end i adapted for engagement with a keeper (not shown). The latch bolt 58 is slidable in the cylindrical surface S2 and provided with a transversely extending through opening 43. The latch bolt 5b is reduced rearwardly as at 54, thereby forming a shoulder 55. Rearwardly beyond the portion 5% the latch bolt 5% is further reduced to form a rectangular bar 56 which extends slidably through the opening ll in wall 40 and is formed at its rearward end with spaced

extensions

51 and 58.

A latch bolt extension bar 68 is arranged between side wall portions '54 and 45 and spaced therefrom, and is provided with a reduced forward extension 61 positioned intermediate the extensions and 58 and pivotally connected thereto by pin 58'. In this manner the latch 50 articulated intermediate its ends.

Arranged above the reduced

portions

54 and 55, and the latch bar extension 66 is a shell 65. The shell is provided with a top wall 56 extend ing along the upper edges of

side walls

31 and 32, and side wall portions 64 and d5. Depending from top wall 85 of shell 65 are side walls 67 and $8. The shell side walls extend along the side walls 3i and 32 on opposite sides of the wall 58 and are bent inwardly at portions 89 and ill. The portions 69 and Eli extend downwardly and forwardly and are integral with the rearwardly extending shell wall portions H and 12. The

lower edge of the portions ll and 12 extend into A the slots 4? and 43. Thus, the shell 65 substantially encloses the latch bolt in the base 2|.

Arranged over the shell 55 is a handle 75 having a depending extension 78 extending between

cars

29 and 30 and into the opening 53. The forward end of the handle 15 is pivotally secured to the cars 29 and 39 by the rivet or pin 11 and is secured to the shell 65 by the screw 18. The rearward end of handle 15 extends downwardly at 15 between the ears 33 and 3d and is secured between the rearwardly extending walls H and 12 of the shell 65 by rivet '19. Thus, the handle 75 and shell -65 will swing outwardly together about the pin 1'1, and the depending extension 76 will bear against the rear wall of opening 53 to move the latch bolt toward its retracted position. Resistance to retraction of the latch bolt is provided by a spring 88 which is circumposed about the

portions

54 and 56 and has its opposite ends engaging the shoulder 55 and wall 40. Thus, it is seen that upon swinging movement of the handle about the pin 11, the extension 76 will actuate the latch bolt 50 which will be retracted and the door may be opened.

Upon the inner side 13 of door I 0 is a bushing 35 arranged in registry with the aperture l6 and secured to the door by fasteners 86. Extending through therbushing and openings I5 and 36 is a push bar or rod 81 which is provided on its inwardly projecting end with a knob 88. The other end 89 of push bar 81 is adapted for engagement with the latch bolt extension 60 upon outward sliding movement of the push bar. A pair of aligned

apertures

90 and 91 are formed in the side wall portions id and 45 just rearwardly of the latch bolt extension 68 when the latch bolt extension is in its extended or most forwardly position. It is apparent that when the latch bolt 5@ is in its extended or latching position, a pin, padlock, or other elongated member, not shown, extending through the openings N and 9! would serve as stop means to prevent retraction of the latch bolt and unlocking of the door. That is, the handle 15 could not be pivoted, and the latch bolt 50 would be locked and could not be jimmied.

However, latch bolt 5% may be quickly and easily shifted to its retracted position by a person on the inside of the door (0. Merely pushing the push bar 8? outwardly causes the latch bolt extension 59 to pivot about pin 58 at its forward end and ride over the pin or padlock in the openings 90 and 9| and release the latch bolt from its locked condition. Further outward movement of the push bar 87 causes the latch bolt extension 56 to engage with the rearward depending end 16' of handle 15 and rotate the handle 75 and shell 55 about the pivot pin 11 to thereby retract the latch 50.

Of course, under normal conditions of use the above described device will serve as a spring pressed door latch in the usual manner.

It is apparent from the foregoing that there is provided a device by which the several objects of this invention are achieved and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all the matter herein set forth in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thus described the invention, I claim as new and desire to protect by Letters Patent of the United States:

1. A lock for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position to an extended position for engagement with a keeper, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, and release means operable from the inside of said door for consecutively disengaging said latch and abutment members and moving the other end of said handle to effect the movement or said latch to its retracted position.

2, A look for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position to an extended position for engagement with a keeper, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, and release means operable from the inside of said door for consecutively disengaging said latch and abutment members and moving the other end of said handle to effect the movement of said latch to its retracted position, said actuating means comprising an extension on said handle and engageable with said latch.

3. A look for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position to an extended position for engagement with a keeper, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base' and engaging the inner end of said latch for rendering said latch immovable from its extended position, release means operable from the inside of said door for consecutively disengaging said latch and abutment members and moving the other end of said handle to effect the movement of said latch to its retracted position and a pair of aligned holes in said base, said abutment member being insertable in said holes.

4. A lock for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position to an extended position for engagement with a keeper, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to eifect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, and release means operable from the inside of said door for consecutively disengaging said latch and abutment members and moving the other end of said handle to efiect the movement of said latch to its retracted position, said release means comprising a push bar extending through said door and engageable with said latch.

5. A look for a door, comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position to an extended position for engagement with a keeper, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, release means operable from the inside of said door for consecutively disengaging said latch and abutment members and moving the other end of said handle to efiect the movement of said latch to its retracted position, and a pair of aligned holes in said base, said abutment members being insertable in said holes, said release means comprising a push bar extending through said door and engageable with said latch.

6. A look for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position within said base to an extended position with one end projecting beyond said base, said latch being articulated intermediate its ends, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, and release means operable from the inside of said door for consecutively moving the inner articulated end of said latch out of engagement with said abutment member and moving the other end of said handle to effect the movement of said latch to its retracted position.

'7. A lock for a door comprising a base adapted to be secured to the outside or" a door, a latch mounted in said base for back and forth movement from a retracted position within said base to an extended position with one end projecting beyond said base, said latch being articulated intermediate its ends, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to efiect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, and release means operable from the inside of said door for consecutively moving the inner articulated end of said latch out of engagement with said abutment member and moving the other end of said handle to effect the movement of said latch to its retracted position, said actuating means comprising an extension on said handle and engageable with said latch, and spring means urging said latch toward its extended position of movement.

8. A look for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position within said base to an extended position with one end projecting beyond said base, said latch being articulated intermediate its ends, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to efiect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, release means operable from the inside of said door for consecutively moving the inner articulated end of said latch out of engagement with said abutment member and moving the other end of said handle to eii'ect the movement of said latch to its retracted position and a pair of aligned holes in said base, said abutment member being insertable in said holes.

9. A lock for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position Within said base to an extended position with one end projecting beyond said base, said latch being articulated intermediate its ends, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, release means operable from the inside of said door for consecutively moving the inner articulated end of said latch out of engagement with said abutment member and moving the other end of said handle to eiiect the movement of said latch to its retracted position, and a pair of aligned holes in said base, said abutment member being insertable in said holes, said release means comprising a push bar extending through said door and engageable with the inner articulated end of said latch.

10. A look for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position within said base to an extended position with one end projecting beyond said base, said latch being articulated intermediate its ends, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, release means operable from the inside of said door for consecutively moving the inner articulated end of said latch out of engagement with said abutment member and moving the other end of said handle to effect the movement of said latch to its retracted position, said actuating means comprising 8, an extension on said handle and engageable with said latch, spring means urging said latch toward its extended position of movement, and a pair of aligned holes in said base, said abutment member being insertable in said holes.

11. A look for a door comprising a base adapted to be secured to the outside of a door, a latch mounted in said base for back and forth movement from a retracted position Within said base to an extended position with one end projecting beyond said base, said latch being articulated intermediate its ends, a handle pivotally connected to said base, actuating means at one end of said handle operative upon movement of said handle to effect the movement of said latch, stop means comprising an abutment member fixed with respect to said base and engaging the inner end of said latch for rendering said latch immovable from its extended position, release means operable from the inside of said door for consecutively moving the inner articulated end of said latch out of engagement with said abutment member and moving the other end of said handle to effect the movement of said latch to its retracted position, and a pair of aligned holes in said base, said abutment member being insertable in said holes, said inner articulated end of said latch being movable into engagement with said handle for efiecting pivotal movement of the latter.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,031,664 Miller Feb. 25, 1936 2,161,757 Brantingson June 6, 1939 2,415,587 Groeger Feb. 11, 1947