US3593550A

US3593550A - Refrigerator door handle with cylinder door lock unit on the handle

Info

Publication number: US3593550A
Application number: US769677A
Authority: US
Inventors: Irving L Berkowitz
Original assignee: KASON HARDWARE CORP
Current assignee: Kason Industries Inc
Priority date: 1968-10-22
Filing date: 1968-10-22
Publication date: 1971-07-20
Anticipated expiration: 1988-07-20

Abstract

The cylinder lock unit is mounted on the handle. It has adjustment features for rough as well as fine adjustment. A stud of appropriate length is used to take care of the thickness of the door. A setscrew on a locking cam takes care of micrometer adjustment for variations in door and gasket thickness. This handle and lock unit is for magnetic closure gasket-type refrigerator doors. The handle is fixed to the door by screws.

Description

United States Patent [72] Inventor Irving L. Berkowitz Binghamton, N.Y. [21] Appl. No. 769,677 [22] Filed Oct. 22,1968 [45] Patented July 20, 1971 [73] Assignee Kason Hardware Corporation Binghamton, N.Y.

[54] REFRIGERATOR DOOR HANDLE WITH CYLINDER DOOR LOCK UNIT ON THE HANDLE 9 Claims, 8 Drawing Figs.

[52] US. Cl 70/207, 70/139, 70/362 51 int. Cl GOSg 5/26, EOSb 27/08, E05b 65/06 [50] Field of Search 70/ l 37, 139, 364, 366, 451, 362, 363, 367, 369, 370, 371, 374, 375, 207, 208, 224, 215, 216, 217, 81, 135

[56] References Cited UNITED STATES PATENTS 1,449,187 3/1923 O'Connor 70/207 X 1,662,773 3/1928 Albach 70/207 2,034,200 3/1936 North 70/207 2,047,795 7/1936 North 70/81 X 2,602,318 7/1952 Belausteguigoita 70/217 2,650,492 9/1953 Jacobi 70/362 2,804,765 9/1957 Biblin 70/362 3,009,347 11/1961 George 70/216 Primary Examiner-Marvin A. Champion Assistant ExaminerEdward J McCarthy Attorney-J. B. Felshin ATENTEU JUL 20 mm INVENTOR. IRVING L. BERKOWITZ "z nnnu[p- ATTORNEY PATENTEIJJULZOIBH 3.593.550

SHEET 2 OF 2 INVENTOR. IRVING L. BERKOWITZ ATTORNEY REFRIGERATOR DOOR HANDLE WITH CYLINDER DOOR LOCK UNIT ON THE HANDLE BACKGROUND OF THE INVENTION SUMMARY OF THE INVENTION An object of this invention-is to provide'a door handle ofthe character described fixed to a door with a cylinder lock unit mounted on the handle for locking thedoor. A further object of this invention is to provide in'a construc tion of the character described, a cylinder lock unit which is adjustable for doors of various sizes and is also adjustable for small variations in the thickness of the door and door gasket.

A' still further object of this invention is to provide .a cylinder door lock unit mounted on a'handle fixed tothe door, which is'so constructed that fine adjustments can be made without necessity for removing the handle from thedoor, to take care of fine variations in gasket or door thicknesses, due to nonuniformity in manufacture.

Yet a further object of this invention is to provide a door lock and handle construction of the character described in which a stud is replaceable for a longer or shorter.stud,-to'take v care of thicker or thinner doors or large adjustment.

Another object of the invention is to provide a door handle lock construction which is adaptable for various types of keepers.

Still another object of this invention is to provide a strong, rugged, and durable door handle lock construction of the character described which shall be relatively inexpensive to manufacture, easy to install and manipulate, and whichshall yet be practical and efficient to a high degree in-use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out. I

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which 'will be exemplified in a the construction hereinafter described, and of which the scope of inventionwill be indicated in the following claims.

In the accompanying drawing, in which areshown various illustrative embodiments of this invention.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective-exploded view of a handle and cylinder lock unit embodying the invention;

handle fixed to a door on a doorjamb;

FIG. 3 is a cross-sectional view taken on line 3-3 of FIG. 2;

FIG. 4 is a cross-sectional view taken on line 4-.4 of FIG. 2;

FIG. 5 is a view similar to FIG. 1 but illustrating amodified form of the invention;

FIG. 6 is a vertical cross-sectional view of the upper end of the handle of FIG. 5 shown attached to a door, and with a cylinder lock unit assembled with said handle;

FIG. 7 is a cross-sectional view taken on line 7-7 of FIG. 6; and

FIG. 8 is a cross-sectional view taken on line 8-8 of F IG. 6.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now in detail to FIGS. 1 to 4 of the drawing, numeral 10 designates a door of a refrigerator or other cabinet, hinged thereto in any suitable manner and adapted to be closed against a gasket 11 fixed to a doorjamb 12. Fixed to the doorjamb l2 and located in a cutout in the gasket 11 is a keeper 13. Said keeper 13 may have a leg 13a contacting the FIG. 2 is a vertical cross-sectional view of one end of the 5 face 12a of the doorjamb opposite to the inner face 10a of the door, and fixed thereto by a pair of screws 16; Extending from leg 13a toward face 10a is a portion l3bfrom which .an arm 13c projects upwardly. j

Fixed'to the outer surface 1050f door 10 is a handle '18 provided with-means to be describedhereinafter, to engage the keeper I3 forlocking the door. The handle1l8 comprises an elongated intermediate handgrip portion 18a from the upper end of which extends an arm 18b contacting outer surface 10b of the door, and from the lower end of which extends an arm 18c contacting said surface 10b of the door. I

Arm 18c has a'n'outer flat vertical surface 19 contacting said surface 10b and is formed with a horizontal threaded blind hole 20 to receive the end of a screw 21 passing through a smooth hole 22 in the door. The lower part of arm 18c may be hollow to reduce weight, as at 24, extending. partially around the hole 20.

The upper arm 18b has an outer surface 25 in the plane of surface l9 and is .formedvwith a screw-threaded opening 26, like opening 20,a nd with a hollow 28 like hollow,24. A screw, likesc rew 21'(not shown), passes through an opening, like opening 22, (not shown for screwing into said opening 26 so thatsaid handle is fixed to the door by said screws.

The door 10 is formed with a through opening 30 below the upper surface 31 of arm 18c. Arm 18c is of greater vertical height than arm 18b. Said arm 18c is formed, above the hollow angular extent. Rotatably mounted in opening 40. and journaled by innersurfaces 41b of ribs 41a, is a key-actuated cylinder 45 of usual construction, havingaflange 46 at one end disposed within countersink 42, a cylindrical portion 47 within portion 41 of opening 40, and an axial stem 48 of square outer crosssection projected into portion 43 of said opening'Stem 48 is formed withan axial screw-threaded blind opening 50 for the purpose hereinafter appearing. The key cylinder 45 is of usual construction. When the proper key is inserted, tumblers are drawn in and the key can turn the cylinder through an angle of 180. They key can be withdrawn when the cylinder is two positions, I apart. When the key is,

withdrawn from the cylinder, the cylinder cannotbe rotated because the tumblers projectbetween the ribs 41a.

Opening

40, 43 is coaxial with opening 30 inthe door. Jour- I naled in opening portion 43 is a cylinder stop member 60. Member 60 hasan outer cylindrical surface 61.

Member 60 has an opening .62 at one end of square cross section and receives the stem 48. Atv its other end, said member 60 is formed with an internally screw-threadedopening 63 coaxialwith opening 62. Between the

openings

62 and 63 is an axial smooth opening 64. The member 60 isformed near the outer endthereof with a radial screwed threaded.

opening 65 communicating with opening 63, to receive a setscrew 66. Said member60 is furthermore formed withan outwardly extending radial lug 67 received in the arcuate groove 44. Member 60 is fixed to the cylinder 45 by a screw 68 passing through the smooth opening 64 and screwed into the threaded opening 50. The screw 68 has a head 70 contacting Y inner end of socket or opening 63. Thus the cylinder 45 and member 60 are held together for concurrent rotation and one cannot move axially relative to the other without first removing the screw 68. I

Screwed into the threaded opening 63 is an axial shaft or stud 71 having four equiangularly spaced flat surfaces 72-. One end of the stud 71 is screwed into the opening 63 and said setscrew 66 may be screwed against one of the flat surfaces 72 to prevent further rotation of the stud relative to member 60. The stud 71 projects beyond the opening 30. Screwed thereon is alocking cam member 74. Said member 74 has an axially internally screwrthreaded opening 75 receiving said opposite end of the stud. Said member 74 is formed with a radial screwthread e d opening 76 communicating with opening 75 to receive a setscrew 77 adapted to contact one of the surfaces 74 of the stud 71. The opening 75 is a blind opening. At the outer end of member 74 is a keeper engaging outwardly extending radial latch lug 78, When the key is turned to locking position lug 78 rotates into alignment with the inner side of arm 13c of the keeper [3.

The position of the locking cam 74 may be adjusted by loosening the setscrew 77 and turning the cam member 74 to its desired longitudinal position; Thereafter the setscrew 77 can again be tightened against surface 72 to hold thecam member 74 against rotation on the stud. It will be noted that the setscrew 77 is exposed when the door is open to permit fine adjustment of the cam member 74.

lt will now be observed that the handle l8 is fixed to the door and that the locking of the door is affected by a key.

It will be noted furthermore that the lug 67 is of such angular extent that the cylinder can be rotated through an angle of 180. Thus the arcuate groove 44 is of an angular extent which equals 180 plus the angular extent of the lug 67.

In FIGS. to '8 there is shown a modified construction. In FIGS. 5 to 8 the handle 18 may be the same as in FIGS. 1 to 4. However, the handle is reversed so that the arm 18c is at the top and the arm 18b is at the bottom. The handle is attached to the door in the same way as in FIGS. 1 to 4. The cylinder 45ais also the same as in FIGS. 1 to 4 except that instead of having a square stem 48 it is formed with a stem 80 which has a square portion 81 and a round portion 82. The stem 80 is formed with an axial-threaded opening 84 similar to the threaded opening 50.

Attached to the cylinder 45a is a member 86 having a cylindrical portion 86a. At one end of portion 860 is a cylindrical portion 87 of increased diameter received in the portion 43 of the through opening 40. Said portion 87 is formed with an arcuate radial lug 87a which is somewhat more than 90 in angular extent and is received in groove 44 of the handle. The angular extent of said lug 87a is such that the cylinder 45a can only move through an angle of 90. Member 86 is formed at one end with an axial socket 88 of square cross section receiving the stem 80 of the cylinder 45a. Said member 86 is formed at its opposite end with an axial socket 89. It is furthermore formed with a smooth axial through opening 90 interconnecting the socket 89 with the socket 88. A screw 91 passes through the opening 90 and is screwed into the threaded opening 84 in the stem or extension 80 of the cylinder. The screw 91 has a head 92 which is located at the inner end of the socket 89.

Member 86 has a longitudinal crankpin extension 93 offset from the socket 89 and adjacent thereto.

Attached to door 10 by means of a pair of screws 94 is a lockingbar housing 95. Said housing 95 comprises a wall 96 formed with a round opening 97 into which one end of member 86 projects for rotation. At the upper and lower ends of wall 96 are horizontal walls 98 interconnected by a wall 99 parallel to said wall 96. Wall 99 is not as wide as wall 96 leaving exposed shoulders 98a at walls 98. The screws 94 pass through smooth parallel openings 100 at the upper and lower ends of housing 95. Screws 94 are screwed into the door 10 as shown in FIG. 6.

The pin 93 projects into the slot 101 between

walls

96, 99. A locking bar 102 of rectangular shape, is slidably received in slot 101. Said bar 102 is formed with a vertical slot 103 near one edge, into which slot the crankpin 93 projects. As the cylinder 45a is rotated through an angle of 90 in one direction the pin 93 slides the locking bar in one direction to lock the door. The doorjamb has a keeper socket 105 to receive the 106 to allow the door to be opened.

A radial plane through the axis of member 86 and through the axis of pin 93 bisects the angle between the ends of lug 870, so that as the cylinder is rotated through an angle of 90,

the lock bar will move horizontally, and the pin 93 will move from one side of a vertical plane through the axis of member 86 to the other side of said plane and said pin will move through an angle of45 to each side of said plane.

It will thus be seen that there is provided an article in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As possible embodiments might be made of the above invention, and as various changes might'be made in the embodiments, above set forth, it is to be understood that all matter herein set forth is to be interpreted as illustrative only.

lclaim:

v I. A door handle, means to fasten said handle to a door, a key-actuated cylinder rotatably and nonslidably mounted on said handle, a member, meansto attach said member to said cylinder for rotation therewith and to hold said member to said cylinder against longitudinal sliding movement relative thereto, and locking means actuable upon rotating said cylinder to lock the door to which the handle is attached, said attach means comprising-a noncircular stem fixed on said cylinder, said-member having a noncircular socket receiving said stem, and axial means on said member engaging said stem to hold said member and cylinder in axial alignment.

2. The combination of claim 1, and means to limit angular movement to said cylinder. 7

3. The combination of claim 2, said cylinder having a radial lug said means to limit, comprising said radial lug on said cylinder and said handle having an arcuate groove in which said lug is received.

4. A door handle, meansto fasten said handle to a door, a key actuated cylinder rotatably and nonslidably mounted on said. handle, amember, means to attach said member to said cylinder for rotation therewith and to hold said member to said cylinder against longitudinal sliding movement relative thereto, and locking means actuable upon rotating said cylinder to lock the door to which the handle is attached, said locking means comprising a stud screwed at one end to said member, another member screwed to the other end of said stud, and a radial lug on said another member.

5. The combination of claim 4, said stud having one or more longitudinal flat faces, and setscrew means on said first mentioned member and on said another member adapted to engage a flat face of said stud.

6. The combination of claim 1, said locking means comprising an axial stud screwed to said member and another member screwed to said stud, and means on said another member to engage a keeper on a doorjamb' for the door to which said handle is fastened.

7. The combination of claim 4, said handle comprising a I

Claims

1. A door handle, means to fasten said handle to a door, a keyactuated cylinder rotatably and nonslidably mounted on said handle, a member, means to attach said member to said cylinder for rotation therewith and to hold said member to said cylinder against longitudinal sliding movement relative thereto, and locking means actuable upon rotating said cylinder to lock the door to which the handle is attached, said attach means comprising a noncircular stem fixed on said cylinder, said member having a noncircular socket receiving said stem, and axial means on said member engaging said stem to hold said member and cylinder in axial alignment.

2. The combination of claim 1, and means to limit angular movement to said cylinder.

4. A door handle, means to fasten said handle to a door, a key actuated cylinder rotatably and nonslidably mounted on said handle, a member, means to attach said member to said cylinder for rotation therewith and to hold said member to said cylinder against longitudinal sliding movement relative thereto, and locking means actuable upon rotating said cylinder to lock the door to which the handle is attached, said locking means comprising a stud screwed at one end to said member, another member screwed to the other end of said stud, and a radial lug oN said another member.

6. The combination of claim 1, said locking means comprising an axial stud screwed to said member and another member screwed to said stud, and means on said another member to engage a keeper on a doorjamb for the door to which said handle is fastened.

7. The combination of claim 4, said handle comprising a handgrip portion having integral arms at its upper and lower ends, said arms having coplanar surfaces to contact the door to which the handle is fastened by said fastening means, and one of said arms having a through opening receiving said cylinder.

8. The combination of claim 7, said means to fasten said handle on a door comprising means extending through said arms.

9. The combination of claim 7, a doorjamb for said door, a keeper fixed to said doorjamb, and adapted to be engaged by said locking means.