GB2298451A - Multiple bolt actuating mechanism - Google Patents

Multiple bolt actuating mechanism Download PDF

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Publication number
GB2298451A
GB2298451A GB9504325A GB9504325A GB2298451A GB 2298451 A GB2298451 A GB 2298451A GB 9504325 A GB9504325 A GB 9504325A GB 9504325 A GB9504325 A GB 9504325A GB 2298451 A GB2298451 A GB 2298451A
Authority
GB
United Kingdom
Prior art keywords
rods
locking mechanism
dead bolt
housing
locking
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.)
Granted
Application number
GB9504325A
Other versions
GB2298451B (en
GB9504325D0 (en
Inventor
Keith George Faskin
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.)
Securistyle Ltd
Original Assignee
Securistyle Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Securistyle Ltd filed Critical Securistyle Ltd
Priority to GB9504325A priority Critical patent/GB2298451B/en
Publication of GB9504325D0 publication Critical patent/GB9504325D0/en
Publication of GB2298451A publication Critical patent/GB2298451A/en
Application granted granted Critical
Publication of GB2298451B publication Critical patent/GB2298451B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
    • E05C9/041—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with rack and pinion mechanism
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
    • E05C9/042—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with pins engaging slots
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/18—Details of fastening means or of fixed retaining means for the ends of bars
    • E05C9/1825—Fastening means
    • E05C9/1833—Fastening means performing sliding movements
    • E05C9/1841—Fastening means performing sliding movements perpendicular to actuating bar

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Lock And Its Accessories (AREA)
  • General Details Of Gearings (AREA)

Abstract

A locking mechanism 1 for a shoot bolt assembly comprising a housing 5, a dead bolt 17 slidably mounted in the housing 5 for motion in a first direction, a pair of rods 19,21 slidably mounted in the housing 5 for motion in directions substantially perpendicular to the first direction and drive means 31,33,35 interacting with the rods 19,21 for moving the rods 19,21 to active positions for locking, wherein as the rods 19,21 are moved into their active positions the dead bolts 17 are driven by the rods 19,21 by means of a pin and slot actuating mechanism into an extended position for additional locking.

Description

A LOCKING MECHANISM This invention relates to locking mechanisms, and in particular to a locking mechanism for a shoot bolt assembly or the like.
Locking assemblies for vents, such as windows, are well known. Relatively complicated assemblies, such as espagnolette systems, are also well known for providing locking engagement between the mechanism mounted on a vent and a fixed frame. Such systems provide good security, which is currently a very important consideration for many purchasers and users of locking assemblies.
Shoot bolt locking assemblies which involve rods driven by a rotatable handle are usually mounted within an extrusion forming part of the vent itself. In general, the rods driven by the handle are simply extended or retracted from the sides of the vent into holes or keeps in the sides of the fixed frame which surrounds the opening to be closed by the vent. It is also known for the locking assembly to include a catch or dead bolt which extends from the bottom of the vent into the fixed frame midway between the keeps for the shoot bolts, thereby providing additional protection against intruders.
With the foregoing in mind, the present invention aims to improve upon the prior art locking assemblies by providing a novel and inventive mechanism for driving shoot bolts and a dead bolt into locking positions.
According to the present invention there is provided a locking mechanism for a shoot bolt assembly comprising a housing, a dead bolt slidably mounted in the housing for motion in a first direction, a pair of rods slidably mounted in the housing for motion in directions substantially perpendicular to the first direction and drive means interacting with at least one of the rods for moving the rods to active positions for locking, wherein as the rods are moved into their active positions, the dead bolt is driven by at least one of the rods into its active position for additional locking.
Although it is known to drive a dead bolt using a link mounted eccentrically on a handle drive, the dead bolt interacting with shoot bolts to drive the shoot bolts, the link is a point of weakness. Further, the dead bolt in such an arrangement is not evenly driven and can become jammed in the mechanism. Hence, a locking assembly according to the present invention is a marked improvement over this prior art because the initial drive from a handle or the like is passed directly to the rods which subsequently drive the dead bolt.
As will be appreciated, in a preferred embodiment, the rods move in opposite directions.
Preferably a gear acts between the rods to assist the rods to move in opposite directions. In such an arrangement, the drive means may act on one of the rods, which subsequently drives the other rod and the dead bolt.
Preferably the first and second rods engage guides in the dead bolt to drive the dead bolt. More preferably, the rods includes pins which travel in the guides in the dead bolt.
Although only one dead bolt is required in a locking assembly according to the present invention, two or more dead bolts could be provided which are driven by the rods.
In the preferred embodiment specifically envisaged by the applicant, two dead bolts are provided.
The drive means may include a pin mounted on one of the rods which is received in a fork which is mounted for rotation about a pivot axis.
The pivot axis of the fork is preferably arranged to receive a square drive of a handle or the like.
In a preferred embodiment, the dead bolt is positioned between the rods within the housing.
Further, the rods preferably include ends which act as shoot bolts. Alternatively, the rods may be adapted to receive shoot bolts during installation of the locking mechanism in a vent, for example.
A specific embodiment of the present invention is now described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a shoot bolt locking assembly according to the present invention mounted on a vent; Figure 2 is a schematic plan view of a locking mechanism according to the present invention with the dead bolts in their retracted positions; and Figure 3 is a schematic plan view of the locking mechanism of Figure 2 with the dead bolts in their extended, locking positions.
With reference to the drawings, a locking mechanism 1 according to the present invention may be mounted on or in a vent 3 which is to close an opening in a fixed frame (not shown). The locking mechanism 1 comprises a housing 5 which is relatively long and slim and defines a first side 7 and two ends 9. The housing 5 is provided with holes 11 through which fasteners, such as screws or bolts, can pass to secure the housing 5 within an extrusion 15 forming one side of the vent 3.
Two substantially rectangular dead bolts 17 are slidably mounted in the housing 5. The dead bolts 17 can be extended from the side 7 of the housing 5 as shown in Figure 3 or retracted into the housing 5 as shown in Figure 2. The two dead bolts 17 are sandwiched between a first rod 19 and a second rod 21. A gear 23 is mounted in the housing 5 and interacts with racks (not shown) on each of the rods 19,21 to assist or cause the rods 19,21 to move in opposite directions whenever one of the rods is driven.
Each of the rods 19,21 includes an end pin 25 and an intermediate pin 27 which engage in guide grooves 29 in the front and rear surfaces of the dead bolts 17. As a result, when the rods 19,21 move, the pins 25,27 slid along the guides 29 to extend or retract the dead bolts 17 from the side 7 of the housing 5. By having two pins 25,27 acting on each dead bolt 17, one acting on the front and the other acting on the rear of the dead bolt 17, smooth running of the dead bolts 17 is provided. This is a significant and marked improvement over the prior art arrangements.
The locking mechanism 1 further includes a fork 31 which engages a drive pin 33 on the first rod 19. The fork 31 is mounted in the housing 5 for pivotal rotation about a square drive 35 which, in use, is associated with a handle (not shown). As the square drive 35 rotates the fork 31, the drive pin 33 slides along the opening formed between the prongs of the fork 31. Further, the first rod 19 is driven in one direction whilst the second rod 21 is driven in the opposite direction due to the gear 23. Hence, the shoot bolts 17 are extended or retracted, depending upon the direction of rotation of the fork 31.
As will be appreciated from the foregoing, a locking mechanism according to the present invention is extremely simple to manufacture and easy to install, and yet is efficient and reliable in use. Further, although only two dead bolts 17 are shown in the drawings, in theory any number of dead bolts could be driven by the mechanism.
Finally, although not shown in Figures 2 and 3, shoot bolts 37 (cf. Figure 1) may either be formed at the ends of the rods 19,21 or mounted on the ends of the rods 19,21 for engagement in holes or keeps in a fixed frame, during use.
In this way, a very strong and reliable locking assembly for a vent is provided.
It will of course be understood that the present invention has been described above purely by way of example, and that modifications of detail can be made within the scope of the invention.

Claims (14)

1. A locking mechanism for a shoot bolt assembly comprising a housing, a dead bolt slidably mounted in the housing for motion in a first direction, a pair of rods slidably mounted in the housing for motion in directions substantially perpendicular to the first direction and drive means interacting with at least one of the rods for moving the rods to active positions for locking, wherein as the rods are moved into their active positions, the dead bolt is driven by at least one of the rods into its active position for additional locking.
2. A locking mechanism as claimed in claim 1, wherein the rods move in opposite directions.
3. A locking mechanism as claimed in claim 2, wherein a gear acts between the rods to assist the rods to move in opposite directions.
4. A locking mechanism as claimed in any preceding claim, wherein the drive means act on one of the rods which subsequently drives the other of the rods and the dead bolt.
5. A locking mechanism as claimed in any preceding claim, wherein the rods engage guides in the dead bolt to drive the dead bolt between its active and inactive positions.
6. A locking mechanism as claimed in claim 5, wherein the rods carry pins which travel in the guides in the dead bolt.
7. A locking mechanism as claimed in any preceding claim, wherein two or more dead bolts are provided, each dead bolt being driven by the rods during use.
8. A locking mechanism as claimed in any preceding clain, wherein the drive means include a drive pin mounted on one of the rods which is received in a fork which is mounted for rotation about a pivot axis.
9. A locking mechanism as claimed in claim 8, wherein the pivot axis of the fork is arranged to receive a square drive of a handle or the like.
10. A locking mechanism as claimed in any preceding claim, wherein the dead bolt is positioned between the rods within the housing.
11. A locking mechanism as claimed in any preceding claim, wherein the rods include ends which act as shoot bolts.
12. A locking mechanism as claimed in any one of claims 1 to 10, wherein the rods are adapted to carry shoot bolts.
13. A locking mechanism for a shoot bolt assembly substantially as hereinbefore described with reference to and as shown in the accompany drawings.
14. A shoot bolt assembly incorporating a locking mechanism as claimed in any preceding claim.
GB9504325A 1995-03-03 1995-03-03 A locking mechanism Expired - Fee Related GB2298451B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9504325A GB2298451B (en) 1995-03-03 1995-03-03 A locking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9504325A GB2298451B (en) 1995-03-03 1995-03-03 A locking mechanism

Publications (3)

Publication Number Publication Date
GB9504325D0 GB9504325D0 (en) 1995-04-19
GB2298451A true GB2298451A (en) 1996-09-04
GB2298451B GB2298451B (en) 1998-09-02

Family

ID=10770609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9504325A Expired - Fee Related GB2298451B (en) 1995-03-03 1995-03-03 A locking mechanism

Country Status (1)

Country Link
GB (1) GB2298451B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1045096A1 (en) * 1999-04-12 2000-10-18 Unilux AG Window fitting and window with such a fitting
WO2003050373A1 (en) * 2001-12-13 2003-06-19 G-Lock (Patents) Limited A locking device
GB2612074A (en) * 2021-10-21 2023-04-26 Uap Ltd Mechanical linkage for a door handle assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778303A (en) * 1955-09-19 1957-07-03 Horace Frederick Macdonald Rou Security locking device for doors and windows of motorcars, trucks and lorries
GB1544213A (en) * 1977-04-06 1979-04-19 Gould Ltd F Latch-bolt arrangement for doors
US4391460A (en) * 1979-05-25 1983-07-05 Bonet Jose D Adjustable multiple bolt locking system
GB2257745A (en) * 1991-07-01 1993-01-20 Thomas John Wood Cremone[espagnolette] fastening mechanism
GB2265935A (en) * 1992-04-01 1993-10-13 Cego Ltd Espagnolette type mechanism.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB778303A (en) * 1955-09-19 1957-07-03 Horace Frederick Macdonald Rou Security locking device for doors and windows of motorcars, trucks and lorries
GB1544213A (en) * 1977-04-06 1979-04-19 Gould Ltd F Latch-bolt arrangement for doors
US4391460A (en) * 1979-05-25 1983-07-05 Bonet Jose D Adjustable multiple bolt locking system
GB2257745A (en) * 1991-07-01 1993-01-20 Thomas John Wood Cremone[espagnolette] fastening mechanism
GB2265935A (en) * 1992-04-01 1993-10-13 Cego Ltd Espagnolette type mechanism.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1045096A1 (en) * 1999-04-12 2000-10-18 Unilux AG Window fitting and window with such a fitting
WO2003050373A1 (en) * 2001-12-13 2003-06-19 G-Lock (Patents) Limited A locking device
GB2612074A (en) * 2021-10-21 2023-04-26 Uap Ltd Mechanical linkage for a door handle assembly
GB2612074B (en) * 2021-10-21 2024-07-17 Uap Ltd Mechanical linkage for a door handle assembly

Also Published As

Publication number Publication date
GB2298451B (en) 1998-09-02
GB9504325D0 (en) 1995-04-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010303

728V Application for restoration filed (sect. 28/1977)
728Y Application for restoration allowed (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090303