US3767244A - Locks - Google Patents

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Publication number
US3767244A
US3767244A US3767244DA US3767244A US 3767244 A US3767244 A US 3767244A US 3767244D A US3767244D A US 3767244DA US 3767244 A US3767244 A US 3767244A
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US
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Grant
Patent type
Prior art keywords
portion
moulding
further
lock
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
G Plaw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WHITCO PTY Ltd A CORP OF QUEENSLAND AUSTRALIA
Stanley Works Pty Ltd
Original Assignee
Stanley Works Pty Ltd
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Filing date
Publication date
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/16Use of special materials for parts of locks
    • E05B15/1635Use of special materials for parts of locks of plastics materials
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/162Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away of the plane of the wing or frame
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/124Fastening devices with bolts moving pivotally or rotatively with latching action with latch under compression force between its pivot and the striker
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00Closure fasteners
    • Y10S292/38Plastic latch parts
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/08Bolts
    • Y10T292/1043Swinging
    • Y10T292/1051Spring projected
    • Y10T292/1052Operating means
    • Y10T292/106Push or pull rod

Abstract

For use in the formation of a lock a continuous one-piece moulding in plastics material which comprises a first portion and two further portions contiguous with the first portion at a pair of hinge strips, the first portion defining a channel into which one of the further portions can be swung and the other further portion being swingable against the first portion to close the channel thereby to form a hollow lock body and to restrict swinging movement of said one further portion which latter portion is formed to then serve as a lock bolt head movable between a position in which it extends from an end of the hollow lock body and a retracted position in which it is swung inwardly of the body.

Description

United States Patent 1 Plaw [451 Oct. 23, 1973 LOCKS [75] Inventor: Graeme Raymond Plaw,

Nunawading, Australia [73] Assignee: The Stanley Works Pty. Ltd.,

Nunawading, Australia [22] Filed: May 22, 1972 [21] Appl. No.: 255,527

[30] Foreign Application Priority Data May 25, 1971 Australia 4995 52 us. Cl. 292/227, 292/010. 38 [51] Int. Cl. E05c 3/08 [58] Field of Search 292/76, 77,- 86, 202,

292/219, 225, 227, 228, DIG. 38

[56] References Cited UNITED STATES PATENTS 1,324,381 12/1919 Bradshaw 292/219 3,466,076 9/1969 Bisbing 292/109 Primary Examiner-Richard E. Moore Att0mey-.lames E. Alix [57] ABSTRACT For use in the formation of a lock a continuous onepiece moulding in plastics material which comprises a first portion and two further portions contiguous with the first portion at a pair of hinge strips, the first portion defining a channel into which one of the further portions can be swung and the other further portion being swingable against the first portion to close the channel thereby to form a hollow lock body and to restrict swinging movement of said one further portion which latter portion is formed to then serve as a lock bolt head movable between a position in which it ex tends from an end of the hollow lock body and a retracted position in which it is swung inwardly of the body.

10 Claims, 7 Drawing Figures LKS This invention relates to locks and has particular application to cupboard locks designed for push button operation.

One common form of push button release cupboard lock comprises a hollow lock body to which there is hinged a bolt head swingable between a position in which it projects from one end of the body and a retracted position in which it is swung into the body. Some form of biasing means is provided to bias the bolt head towards its outwardly projecting position but a press button device is provided to push the bolt head back to its retracted position against the action of the biasing spring. This movement of the bolt head may, for example, be achieved via a plunger connected to the push button and extendinginto the interior of the body to engage the bolt head. Normally the hollow lock body and the bolt head are made from a number of separate metal components which must be assembled and fastened together. The present invention enables a very much cheaper construction inwhich a number of components can be formed together from plastics material in such a way that assembly time is minimised.

According to the invention there is provided, for use in the formation of a lock, a continuous one-piece moulding in plastics material which comprises a first portion and two further portions contiguous with the first portion at a pair of hinge strips, the first portion defining a channel into which one of the further portions can be swung and the other further portion being swingable against the first portion to close the channel thereby to form a hollow lock body and to restrict swinging movement of said one further portion which latter portion is formed to then serve as a lock bolt head movable between a position in which it extends from an end of the hollow lock body and a retractedposition in which it is swung inwardly of the body.

Said further portions may be disposed at the opposite ends of the channel defined by the first portion. The channel in the first portion may be'open at the end to which the bolt head portion is disposed and closed at its other end by an end wall part of the first portion. Said other further portion may be generally of plate formation.

In order that the invention may be more fully explained, one particular embodiment will now be described in some detail with reference to the accompanying drawing, in which:

FIG. 1 is a plan of one plastics moulding of the present invention;

FIG. 2 is a cross-section on the line 2-2 in FIG. 1;

FIGS. 3, 4 and 5 show the manner in which the moulding is used in the formation of a lock; and

FIGS. 6 and 7 illustrate the installation of the completed lock. v

The illustrated moulding comprises a first portion ill I and two further portions 12, 13 Portion 11 defines an open topped channel 14, the portions 12, 13 being disposed at opposite ends of this channel and contiguous with the portion ll at hinge strips 16, 17. The end of channel 14 to which the portion 13 is disposed is closed by an end wall 18 and the hinge strip 17 extends across the upper edge of this end wall.

The moulding is formed of a plastics material of a type known to be strong and tough and with which strong hinges can be formed by the moulding of strips such as 16, 17 of reduced cross-section. It may, for example, be formed of polypropylene.

Portion ll 1 has a pair of flanges 19 projecting laterally from the upper edges of the channel 14 and these flanges are perforated by apertures 21 encircled by upstanding bosses 20. Portion 13 is formed to suit the outline of the flanges 19. It is provided with two outer apertures 22 and a central aperture 23.

FIGS. 3, 4 and 5 show the manner in which the moulding is used in the formation of a complete lock. Firstly a resilient steel spring 24 is fitted to a seat 26 formed in the floor of the channel of the portion 11. Portion 12 is then swung inwardly of the channel so that its actuation plate part 27 engages the spring. The moulding portion 13 is then folded over onto the portion 11 to close the channel so as to form a hollow lock body and to hold the portion 12 such that it can then serve as a lock bolt head. The bosses 20 are a force fit in the apertures 22 so that the lock body is held together and the portion 13 is formed with a pair of lugs 28 disposed to either side of the central aperture 23 to engage the tip of the bolt head actuation plate 27 and so limit outward movement of the bolt head.

The other parts of the lock are completely conventional and as shown in FIGS. 6 and 7 the lock is mounted on a door in conventional fashion. Securing screws 29 are passed through the aligned apertures 21, 22 and the door 30 into a knob or handle 31?. mounted on the front of the door. A push button 32 is formed integrally with a plunger 33 extending through the door and aperture 23 into the hollow lock body to engage the bolt head plate 27. Thus the bolt head can be swung inwardly by actuation of the push button so as to release the lock.

The installed lock can co-operate in conventional fashion with a striker 34 fastened to the door jamb 35.

It will be appreciated that the illustrated moulding enables very rapid assembly of a complete lock. Moreover the plastics components are cheaper than equivalent metal components. Thus significant savings in cost can be achieved. The illustrated construction has, how ever, been advanced by way of example only. It is to be understood that the invention is in no way limited to the details of this construction and that manymodifications and variations may be made to it without departing from the scope of the appended claims.

I claim:

1. For use in the formation of a lock, 8. continuous one-piece moulding in plastics material which comprises a first portion and two further portions contiguous with the first portion at a pair of hinge strips, the first portion defining a channel into which one of the further portions can be swung and the other further portion being swingable against the first portion to close the channel thereby to form a hollow lock body and to restrict swinging movement of said one further portion which latter portion is formed to then serve as a lock bolt head movable between a position in which it extends from an end of the hollow lock body and a retracted position in which it is swung inwardly of the body.

2. A moulding as claimed in claim ll, wherein said further portions are disposed at the opposite ends of the channel defined by the first portion.

3. A moulding as claimed in claim 2, wherein the channel in the first portion is open at the end to which the bolt head portion is disposed and closed at its other end by an end wall part of the first portion.

4. A moulding as claimed in claim 2 wherein the first portion has a pair of flanges projecting laterally outwardly from the mouth of the channel which flanges are perforated by apertures to receive mounting screws for mounting the lock body to a door.

5. A moulding as claimed in claim 1, wherein said other further portion is generally of plate formation.

6. A moulding as claimed in claim 2 wherein the first portion has a pair of flanges projecting laterally outwardly from the mouth of the channel which flanges are perforated by apertures to receive mounting screws for mounting the lock body to a door, and wherein said other further portion is generally of plate formation, and wherein the outer periphery of said other further portion is shaped to match the the outer peripheries of said flanges when that portion is swung against the first portion to close the channel and is also provided with a pair of apertures to then align with the apertures in the flanges.

7. A moulding as claimed in claim 1, wherein said one further portion includes an actuation plate part which will project inwardly of the lock body when the one further portion is swung into position to serve as a bolt head and said other further portion has a central aperture through which an actuator plunger can be extended to engage that actuation plate part.

8. A moulding as claimed in claim 7, wherein the restriction of swinging movement of said one further portion is caused by engagement of the actuation plate part with said other further portion.

9. An assembled lock having a lock body and bolt head formed as a continuous one-piece moulding as claimed in claim 1.

10. A lock as claimed in claim 8, wherein a biasing spring is disposed within the lock body to act between the body and the bolt head thereby to bias the bolt head outwardly of the body.

Claims (10)

1. For use in the formation of a lock, a continuous one-piece moulding in plastics material which comprises a first portion and two further portions contiguous with the first portion at a pair of hinge strips, the first portion defining a channel into which one of the further portions can be swung and the other further portion being swingable against the first portion to close the channel thereby to form a hollow lock body and to restrict swinging movement of said one further portion which latter portion is formed to then serve as a lock bolt head movable between a position in which it extends from an end of the hollow lock body and a retracted position in which it is swung inwardly of the body.
2. A moulding as claimed in claim 1, wherein said further portions are disposed at the opposite ends of the channel defined by the first portion.
3. A moulding as claimed in claim 2, wherein the channel in the first portion is open at the end to which the bolt head portion is disposed and closed at its other end by an end wall part of the first portion.
4. A moulding as claimed in claim 2 wherein the first portion has a pair of flanges projecting laterally outwardly froM the mouth of the channel which flanges are perforated by apertures to receive mounting screws for mounting the lock body to a door.
5. A moulding as claimed in claim 1, wherein said other further portion is generally of plate formation.
6. A moulding as claimed in claim 2 wherein the first portion has a pair of flanges projecting laterally outwardly from the mouth of the channel which flanges are perforated by apertures to receive mounting screws for mounting the lock body to a door, and wherein said other further portion is generally of plate formation, and wherein the outer periphery of said other further portion is shaped to match the outer peripheries of said flanges when that portion is swung against the first portion to close the channel and is also provided with a pair of apertures to then align with the apertures in the flanges.
7. A moulding as claimed in claim 1, wherein said one further portion includes an actuation plate part which will project inwardly of the lock body when the one further portion is swung into position to serve as a bolt head and said other further portion has a central aperture through which an actuator plunger can be extended to engage that actuation plate part.
8. A moulding as claimed in claim 7, wherein the restriction of swinging movement of said one further portion is caused by engagement of the actuation plate part with said other further portion.
9. An assembled lock having a lock body and bolt head formed as a continuous one-piece moulding as claimed in claim 1.
10. A lock as claimed in claim 8, wherein a biasing spring is disposed within the lock body to act between the body and the bolt head thereby to bias the bolt head outwardly of the body.
US3767244A 1971-05-25 1972-05-22 Locks Expired - Lifetime US3767244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU499571 1971-05-25

Publications (1)

Publication Number Publication Date
US3767244A true US3767244A (en) 1973-10-23

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ID=3695446

Family Applications (1)

Application Number Title Priority Date Filing Date
US3767244A Expired - Lifetime US3767244A (en) 1971-05-25 1972-05-22 Locks

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US (1) US3767244A (en)
CA (1) CA958046A (en)
DE (1) DE2224929A1 (en)
FR (1) FR2138956B1 (en)
GB (1) GB1332889A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910614A (en) * 1974-03-27 1975-10-07 Keystone Consolidated Ind Inc Cabinet spring latch
US3918754A (en) * 1974-04-26 1975-11-11 Itw Ltd Plastics fasteners
US3966244A (en) * 1973-12-24 1976-06-29 Daimler-Benz Aktiengesellschaft Installation for securing of pivotal hoods or flaps, especially engine hoods
DE3421509A1 (en) * 1983-07-14 1985-01-31 Murakoshi Seiko Koganei Kk A closure for a door
US4527821A (en) * 1982-09-29 1985-07-09 Nifco Inc. Latch device for door or lid
US4684175A (en) * 1984-07-12 1987-08-04 General Motors Corporation Locking device for a rear seat back rest
US4711493A (en) * 1985-04-17 1987-12-08 General Motors Corporation Mounting or locking assembly, especially for use with pivotable motor vehicle seats
US4756562A (en) * 1986-11-26 1988-07-12 Ryerson & Haynes, Inc. Latch assembly for vehicles
US4782674A (en) * 1986-01-23 1988-11-08 Johnson James J Locking means for the doors of trucks vans and the like
US4850208A (en) * 1986-04-28 1989-07-25 The Eastern Company Latch and lock assemblies with spring-biased pivot bolts
US4969916A (en) * 1984-04-18 1990-11-13 The Eastern Company Latch and lock assemblies with spring-biased pivot bolts
USD314131S (en) 1989-07-24 1991-01-29 The Eastern Company Housings for latches and locks
US5046340A (en) * 1984-04-18 1991-09-10 The Eastern Company Latch and lock assemblies with spring-biased pivot bolts
GB2291461A (en) * 1994-06-25 1996-01-24 Mccoll Muir Limited Cupboard door latch
US20030047951A1 (en) * 2001-08-17 2003-03-13 Walter Belchine Push button release apparatus
US20030193199A1 (en) * 2002-04-07 2003-10-16 Robin Talukdar Glovebox latch
US20050194793A1 (en) * 2001-06-13 2005-09-08 Fabrice Vitry Load floor latch
US20090261700A1 (en) * 2008-04-18 2009-10-22 Ken-Ching Chen Positioning device for a drawer

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527407A (en) * 1979-12-26 1985-07-09 Superior Industries International, Inc. Fuel tank locking apparatus
US4362036A (en) * 1979-12-26 1982-12-07 Superior Industries International, Inc. Fuel tank locking apparatus
DE3107662C1 (en) * 1981-02-28 1982-12-16 Haefele Kg Snap for Schranktueren or the like.
GB2129046B (en) * 1982-10-29 1986-01-22 Arnold J W Door catch
GB9102842D0 (en) * 1991-02-11 1991-03-27 Securistyle Ltd A locking device
GB2433545B (en) * 2005-12-24 2011-09-28 Trojan Hardware & Designs Ltd Window handle arrangement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1324381A (en) * 1919-12-09 Door-bolt
US3466076A (en) * 1967-09-15 1969-09-09 Southco Draw pull catch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1324381A (en) * 1919-12-09 Door-bolt
US3466076A (en) * 1967-09-15 1969-09-09 Southco Draw pull catch

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966244A (en) * 1973-12-24 1976-06-29 Daimler-Benz Aktiengesellschaft Installation for securing of pivotal hoods or flaps, especially engine hoods
US3910614A (en) * 1974-03-27 1975-10-07 Keystone Consolidated Ind Inc Cabinet spring latch
US3918754A (en) * 1974-04-26 1975-11-11 Itw Ltd Plastics fasteners
US4527821A (en) * 1982-09-29 1985-07-09 Nifco Inc. Latch device for door or lid
DE3421509A1 (en) * 1983-07-14 1985-01-31 Murakoshi Seiko Koganei Kk A closure for a door
US5046340A (en) * 1984-04-18 1991-09-10 The Eastern Company Latch and lock assemblies with spring-biased pivot bolts
US4969916A (en) * 1984-04-18 1990-11-13 The Eastern Company Latch and lock assemblies with spring-biased pivot bolts
US4684175A (en) * 1984-07-12 1987-08-04 General Motors Corporation Locking device for a rear seat back rest
US4711493A (en) * 1985-04-17 1987-12-08 General Motors Corporation Mounting or locking assembly, especially for use with pivotable motor vehicle seats
US4782674A (en) * 1986-01-23 1988-11-08 Johnson James J Locking means for the doors of trucks vans and the like
US4850208A (en) * 1986-04-28 1989-07-25 The Eastern Company Latch and lock assemblies with spring-biased pivot bolts
US4756562A (en) * 1986-11-26 1988-07-12 Ryerson & Haynes, Inc. Latch assembly for vehicles
USD314131S (en) 1989-07-24 1991-01-29 The Eastern Company Housings for latches and locks
GB2291461A (en) * 1994-06-25 1996-01-24 Mccoll Muir Limited Cupboard door latch
US20050194793A1 (en) * 2001-06-13 2005-09-08 Fabrice Vitry Load floor latch
US7198305B2 (en) * 2001-06-13 2007-04-03 Southco, Inc. Load floor latch
US20030047951A1 (en) * 2001-08-17 2003-03-13 Walter Belchine Push button release apparatus
US6896302B2 (en) * 2001-08-17 2005-05-24 Illinois Tool Works Inc. Push button release apparatus
US20030193199A1 (en) * 2002-04-07 2003-10-16 Robin Talukdar Glovebox latch
US7185927B2 (en) * 2002-04-07 2007-03-06 Southco, Inc. Glovebox latch
US20090261700A1 (en) * 2008-04-18 2009-10-22 Ken-Ching Chen Positioning device for a drawer
US8056994B2 (en) * 2008-04-18 2011-11-15 King Slide Works Co., Ltd. Positioning device for a drawer

Also Published As

Publication number Publication date Type
CA958046A1 (en) grant
GB1332889A (en) 1973-10-10 application
FR2138956A1 (en) 1973-01-05 application
CA958046A (en) 1974-11-19 grant
FR2138956B1 (en) 1973-07-13 grant
DE2224929A1 (en) 1972-12-14 application

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WHITCO PTY. LTD., A CORP. OF QUEENSLAND, AUSTRALIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STANLEY WORKS PTY. LTD., THE, A CORP. OF TASMANIA;REEL/FRAME:005016/0795

Effective date: 19881207