GB1580094A

GB1580094A - Apparatus for locking a closure such as a window

Info

Publication number: GB1580094A
Application number: GB50624/77A
Authority: GB
Original assignee: Regent Lock Co Ltd
Current assignee: Regent Lock Co Ltd
Priority date: 1977-12-06
Filing date: 1977-12-06
Publication date: 1980-11-26
Also published as: EP0002381A1; EP0002381B1; NO781080L; DE2861142D1; NO146371C; NO146371B

Description

PATENT SPECIFICATION

( 11) 1 580 094 ( 21) Application No 50624/77 ( 22) Filed 6 Dec 1977 ( 19) ( 44) Complete Specification Published 26 Nov 1980 ( 51) INT CL 3 E 05 B 13/10 ( 52) Index at Acceptance I d E 2 A 100 109 115 421 AR ( 72) Inventors: ERNEST CHARLES DALEY HENRY ALBERT HINTON ( 54) APPARATUS FOR LOCKING A CLOSURE SUCH AS A WINDOW ( 71) We, REGENT LOCK COMPANY LIMITED, a British Company, of Bath Road Industrial Estate, Chippenham, Wiltshire do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly de-

scribed in and by the following statement:

The invention relates to apparatus for fastening a closure such as a window.

According to the invention there is provided apparatus for fastening a closure such as a window, comprising a member adapted to be mounted on the closure or a frame therefor, a handle pivotally mounted on the member for turning between two end positions for respectively fastening and unfastening the closure, and a lock having a bolt laterally displaced from the pivot for cooperating with the member so as to prevent turning movement of the handle relative to the member in the fastening position when the bolt is actuated to lock the apparatus.

Thus it is possible to provide a lockable window catch embodying the invention which is readily mounted on a window and which can be locked to prevent unauthorised turning of the handle to unfasten the window.

To simplify construction of the apparatus the member may have a groove and the retractable means may comprise a bolt opposite, and receivable in, the groove in the fastening position.

Again, in order to simplify the construction and operation of the apparatus, the lock may be key-operated barrel lock, the barrel of which may have an eccentric pin or cam opposite an entry for the key, the pin or cam being received in a recess of the bolt so that when the barrel is turned by the key the cam slides the bolt into or out of the groove.

The handle may have an enlarged part, between a hand grip and a pivot pin connecting the handle and the member.

This enlarged part provides a suitable site for the lock, which is accommodated in it.

Alternatively the lock may be a slidable spring mounted barrel lock and the retractable means may comprise a lug projecting from the barrel for engagement with a complementary part of the member in the fastening position.

The member may be an escutcheon plate of the closure adapted for securing to the closure by screw holes through it This provides a simple yet aesthetically pleasing construction.

In order to provide a relatively vandalproof construction, the handle and escutcheon plate may be so arranged that in fastening position at least part of the handle overlies at least one screw hole It is thus difficult for a vandal or thief to apply a tool such as a screw driver to a screw in the hole.

Two constructions of apparatus embodying the invention are hereinafter described, by way of example, with reference to the accompanying drawings, in which:Figure 1 is a longitudinal part sectional view of one apparatus; Figure 2 is a plan view of the apparatus of Figure 1; and Figure 3 is a longitudinal sectional view, to a larger scale than the other two Figures, or part of a second apparatus.

Referring to the drawings, the apparatus shown in Figures 1 and 2 is a lockable window fastening 1 which has a member in the form of an escutcheon plate 2 to which is pivoted, by a pivot pin 3, a handle 4 having a hand grip part 5 The handle 4 has a part 6 through which the pivot pin 3 passes and, between the pin 3 and the hand grip part 5, an enlarged part 7 in which is mounted a key-operated barrel lock 8 The barrel has a projecting eccentric pin or cam 9 at the opposite end of the lock to the key hole 10.

The pin 9 engages in a recess or hole 11 in retractable means in the form of a bolt 12 I" Ck, tn 1 580 094 which is slidable in a direction at right angles to the longitudinal axis of the barrel.

An adjacent part 13 of the escutcheon plate has a groove 14 in which the bolt 12 can be received in one end position of the handle 4.

The escutcheon plate 2 is adapted for mounting on a window frame by screw holes 15, 16, 17 and 18 The lockable window fastening 1 is, in use, secured to a window frame by screws through the four holes 15, 16, 17 and 18, after the handle 4 has been turned from the one end position shown to the left (as viewed in Figure 2) in the direction of the arrow X to the other end position so that the two holes 17 and 18 are unobstructed To close the window, it is merely necessary to return the handle 4 to the position shown in Figures 1 and 2, which action engages a nib 19 of the handle with a keeper in the window jamb (not shown).

To lock the fastening 1 and so secure the window against unauthorised entry, a key is inserted in the lock 8 The lock has the usual differ pins and spring mounted barrel pins.

When the key is inserted the two sets of pins are retracted into the barrel against the springs until the barrel can be turned when the key is turned Turning the barrel tends to move the eccentric cam 9 in an arc To accommodate this, the bolt 12 slides to the left (as viewed in Figure 1) to engage in the groove 14 The fastening 1 is thus locked.

To unlock the fastening 1, the key is turned in the opposite sense in order to withdraw the bolt 12 into the space 20 so that it is free of the groove 14 The handle 4 can then be turned.

In the locked state shown, the part 4 of the handle obscures the holes 17 and 18, so preventing or hindering the unauthorised removal of screws in these holes This helps to make the window fastening 1 vandalproof.

The turning of the handle 4 may be assisted by the inclusion of neoprene or nylon washers 21 or 22 where shown.

Figure 3 shows a lockable window fastening 100 similar to that of Figures 1 and 2, but in this case the lock 8 is a slidable spring mounted barrel lock The barrel has rectractable means in the form of a projecting lug 101 which in the one end position is received in a complementary part 102, in this case the screw hole 17 of the escutcheon plate 2 A helical spring 103 encircles the lug 101 and bears between a base of the lock and the underside of the barrel The bolt 12 has a recess 104 for receiving the eccentric pin 9 and which has a greater lateral extent than the lateral extent of that pin The bolt 12 is mounted under the pressure of a spring The lock is shown just at the point where it unlocks the fastening 100 The key (not shown) has been inserted and turned so that the bolt 12 has been moved to the right (as viewed) and takes up the position shown There is now nothing to prevent the lock from sliding out of the part 3 under the pressure of the spring 103 to the position shown in dashed lines This it does instantaneously, so withdrawing the lug 101 from the screw hole 17 The handle 4 is then free to turn To lock the fastening 100 when the handle has been returned to the one end position, it is merely necessary to depress the barrel by thumb or finger pressure.

When the bolt 12 reaches a position opposite the groove 13 it moves under pressure of the spring 105 into the groove, the enlarged part 104 of the recess allowing this travel without hindrance from the eccentric pin 9.

The handle and escutcheon plate are then locked together once more.

It will be understood that the ejection of the barrel is controlled by a screw mounted with its head in a longitudinally disposed slot (also not shown) In the full line position of the barrel the screw head is at the upper blind end of the slot In the dashed line position the head of the screw and the bottom of the slot are in engagement, so preventing movement of the barrel beyond the dashed line position shown in Figure 3 The slot may be in the barrel or in the part 6 while the screw may be in the part 6 or in the barrel.

In the one end position, the screw holes 17 and 18 (of which only one is shown) are obstructed by the part 6.

Also, the part 6 has a stop (not shown) which prevents turning of the handle 4 beyond the one end position The stop is a depending projection at one side of the part 6 which engages the side of the escutcheon plate when the one end position is reached.

The stop therefore provides a controlled turning of the handle to the one end (window) position The stop is provided in both the fastenings of Figures 1 and 2, or 3.

Claims

WHAT WE CLAIM IS:-

1 Apparatus for fastening a closure such as a window, comprising a member adapted to be mounted on the closure or a frame therefor, a handle pivotally mounted on the member for turning between two end positions for respectively fastening and unfastening the closure, and a lock having retractable means laterally displaced from the pivot for co-operating with the member so as to prevent turning movement of the handle relative to the member in the fastening position when the bolt is actuated to lock the apparatus.

2 Apparatus according to Claim 1, the member having a groove, and the retractable means comprising a bolt opposite, and receivable in the groove in the fastening position.

3 Apparatus according to Claim 2, in 1 580 094 which the lock is a key-operated lock which has a barrel with an eccentric pin or cam at an end opposite an entry for the key, the pin or cam being received in a recess of the bolt so that when the barrel is turned by the key, the pin or cam slides the bolt into or out of the groove.

4 Apparatus according to Claim 2 or Claim 3, the lock being mounted in a part of the handle between a pivot pin connecting the handle and member and a hand grip part of the handle.

Apparatus according to Claim 1, in which the lock comprises a key-operated slidable barrel lock and the retractable means comprises a lug projecting from the barrel for engagement with a complementary part of the member in the fastening position.

6 Apparatus according to Claim 5, in which in the fastening position at least part of the handle overlies at least one screw hole.

7 Apparatus according to Claim 6, in which the complementary part of the member comprises a screw hole.

8 Apparatus according to any preceding Claim, in which the member is an escutcheon plate being adapted for securing to the closure by having holes for screws through it.

9 Apparatus for locking a closure such as a window, substantially as hereinbefore described with reference to and as shown in the accompanying drawings.

A closure or surround therefor including apparatus according to any preceding Claim.

EDWARD EVANS & CO, Chancery House, 53-64 Chancery Lane, London, WC 2 A 15 D.

Agents for the Applicants.

Printed for Her Majesty's Stationery Office, by Croydon Printing Company Limited, Croydon, Surrey, 1980.

Published by The Patent Office 25 Southampton Buildings, London, WC 2 A IAY, from whtch copies may be obtained.