GB2188671A

GB2188671A - A handle

Info

Publication number: GB2188671A
Application number: GB08708029A
Authority: GB
Inventors: Ernest Charles Daley
Original assignee: Regent Lock Co Ltd
Current assignee: Regent Lock Co Ltd
Priority date: 1986-04-07
Filing date: 1987-04-03
Publication date: 1987-10-07
Anticipated expiration: 2007-04-03
Also published as: EP0241245A1; GB8708029D0; GB2188671B; DK177787A; DE3764007D1; EP0241245B1; DK177787D0; EP0241245B2

Description

GB2188671A 1

SPECIFICATION ond handle according to the invention;

Figure 6 is an underneath view of the A handle handle of Fig. 5; Figure 7 is a part fragmentary view of the The invention relates to a handle for a clo- 70 handle of Fig. 5 showing an escutcheon plate sure, particularly an espagnolette handle for a removed; closure such as a window. Figure 8 is a plan view showing the handle.

It is advisable to provide for such a handle of Fig. 5 is an open or unlocked position of to be lockable, for security reasons, whilst be- the closure; ing readily manipulated by one hand. Such 75 Figure 9 is an underneath view showing the prior handles do not usually provide a combihandle of Fig. 5 in an open or unlocked posi nation of these facilities. tion of the closure; It is accordingly an object of the invention Figure 10 is a side elevational view showing to seek to mitigate these disadvantages. the handle of Fig. 5 in the open position of According to the invention there is provided 80 Figs. 8 and 9; a lockable handle for a closure, comprising a Figure 11 is a plan view of a third handle latch which is operable under finger or thumb according to the invention; and pressure. Figure 12 is a side elevational view partly in The latch may comprise a manually operable phantom of the handle of Fig. 12.

depressible mechanism which can be operated 85 Referring firstly to Figs. 1 to 4 of the draw to unlock the handle for operating the closure. ings, a lockable handle 1 for an espagnolette The manually depressible mechanism may fastening has a hand-grip part 2 offset from a comprise means normally biassed to engage boss or body 3 in which a plunger 4 is the handle and lock it, and means to depress mounted in a suitable bore. The boss 3 the biassed means to allow the handle to be 90 mounts a rod 5, from a nose 6, for connec operated. tion with the espagnolette, which rod 5 The biassed means may comprise latch passes through an escutcheon plate 7. The means which may be urged into engagement bottom of the boss 3 adjacent the escutcheon with the handle by resilient means, and the plate 7 is closed by a plate which has a hole means to depress the biassing means may 95 through which a finger 8 of the plunger can comprise a plunger which may be operable by pass. The plunger 4 is normally arranged so thumb pressure. that a spring 9 bearing on the plate keeps the There may be an escutcheon plate in which plunger 4 raised so the finger 8 is clear of the the resilient means and latch means may be hole, and so that the opposite end 4a projects mounted, and the latch may engage in a 100 out of the boss 3 adjacent the hand-grip part facing orifice of the handle in the locked posi- 2. The plunger is held captive in the bore.

tion of the handle. The escutcheon plate 7 mounts a locking The latch may have a curved cam surface at bolt 10 under pressure of resilient means such its free end for facilitating movement of the as a coil spring 12, the bolt 10 being usually handle thereover when the handle is moved 105 clear of the escutcheon plate 7 as shown, and from an open to the locked position. being generally square, with a chamfered The lockable handle may include lock means edge, cam surface or corner 11 near the to lock the plunger in at least one operative nose' 6.

position. In the open condition shown, the bolt 10 The lock means may be situated in the plun- 110 projects out of the escutcheon plate 7. To ger. close a closure to which the handle 1 is fitted, The lockable handle may include a cover the hand-grip part 2 is gripped and turned in plate for a securing means of the escutcheon the direction W, Fig. 1, so that the boss 3 plate. rides over the chamfered edge part 11 and It will be understood that the handle ex- 115 forces the bolt 10 into the escutcheon plate 7 tends to a closure including a lockable handle against the spring until the hole and bolt 10 as hereinbefore described mounted thereon. are aligned, when the bolt is urged into the A lockable handle for an espagnolette of a hole by a spring 12, thus holding the handle window is diagrammatically illustrated, by way locked shut.

of example, with reference to the accompany- 120 In order to open the closure, the plunger 4, ing drawings. 4a is depressed so that the plunger 8 en Figure 1 is a perspective view of a handle gages the bolt 10 and pushes it level with or according to the invention; below the plane of separation between the Figure 2 is a side view of a locking bolt of bottom and face of the plate so that it is just the handle of Fig. 1; 125 clear thereof. The handle can then be turned Figure 3 is a side view of a plunger of the to the position shown.

handle of Fig. 1; Referring to Figs. 5 to 10 of the drawings, Figure 4 is a plan view of the plunger, taken there is shown an espagnolette handle 10 on arrow W on Fig. 3; which is a lockable handle for a closure, comFigure 5 is a side elevational view of a sec- 130prising a handle with hand grip means 102 2 GB2188671A 2 and a manually operable depressible mecha- the barrel 206 to rotate the cam and act on nism 103 which can be operated to unlock the slide 207 to retract it to the left (as the handle 102 for operating the closure (not viewed) out of the particular recess 203 or shown). 204 in which the slide is received so that the The handle 102 has an enlarged part 104 in 70 handle 201 can be operated to open or close which is housed captive in a bore under the closure.

spring pressure a manually depressible means The lock may be spaced from the plunger in in the form of a plunger 105. The handle 102 the handle and arranged to lock it in the open is connected via a pivot axis 106 with an and/or closed condition.

escutcheon plate 107 which is secured in use 75 It will be understood that there may only be via securing means such as screws (not the lower (as viewed) recess 204 so that the shown) in screw holes 108 with a closure handle 201 can be locked in the closed posi such as a casement window. Between a boss tion. Both the embodiments provide additional 109 and one screw hole 108 is a latch 110 security, and ease of use.

which is mounted in an orifice 111 of the 80 The handles shown herein can have a lock escutcheon plate 107 under pressure of a bi- ing nib, instead of the rod 5 or 106 for an assing means such as a spring, the spring espagnolette.

being between a plate 112 of the escutcheon

Claims

plate 107 and the underside of the latch 110. CLAIMS

The latch 110 has a curved cam surface 113 85 1. A lockable handle for a closure, com to facilitate riding of a follower 114 of the prising a latch which is operable under finger handle over the latch 110 to depress it into or thumb pressure.

the hole 111 until it can spring into a hole 2. A lockable handle according to Claim 1, in the handle 102 when the holes 111 the latch comprising a manually operable de and 115 become aligned axially to lock the 90 pressible mechanism which can be operated handle closed. to unlock the handle for operating the closure.

To open the handle, or unlock it, it is only 3. A lockable handle according to Claim 2, necessary to depress the plunger 105 in the the manually depressible mechanism compris Fig. 5 position in which the latch 110 is in the ing means normally biassed to engage the hole 115, being aligned therewith, and turn 95 handle and lock it, and means to depress the the handle so that when the plunger 105 de- biassed means to allow the handle to be op presses the latch to or below the plane of erated.

separation between the handle and escutcheon 4. A lockable handle according to Claim 3, plate, the handle can be turned, to operate the biassed means comprising latch means locking mechanism of the closure connected 100 which is urged into engagement with the with the axis. handle by resilient means, the means to de When the handle is returned to the locked press the biassing means comprising a plunger position, the latch automatically latches into which is operable by thumb pressure.

the hole to lock the handle closed. The other 5. A lockable handle according to Claim 4, hole 108 is covered by a plate 117 to seek 105 comprising an escutcheon plate in which the to obviate removal by a vandal. resilient means and latch means are mounted, Referring now to Figs. 11 and 12, the the latch engaging in a facing orifice of the handle 201 shown is identical to the embodi- handle in the locked position of the handle.

ments shown in Figs. 5 to 10 so like parts 6. A lockable handle according to Claim 5, are identified by like numerals. The handle 110 the latch having a curved cam surface at its 201 is modified in that the plunger 105 is free end for facilitating movement of the itself lockable by a key (not shown) in either handle thereover when the handle is moved the open or closed condition of the handle from an open to the locked position.

201. This is accomplished by the enlarged 7. A lockable handle according to Claim 6, part 104 or boss surrounding the bore 202 in 115 including lock means to lock the plunger in at which the plunger 105 is captive having two least one operative position.

spaced slots or recesses 203 and 204 corre- 8. A lockable handle according to Claim 7, sponding to the open or closed position of the lock means being situated in the plunger.

the handle. The plunger 105 incorporates a 9. A lockable handle according to Claim 8, key slot 205 and barrel 206 which has a cam 120 the lock means comprising a key-operable bar for retracting a slide 207 which is mounted rel co-operable with a retractable slide which transversely in a blind slot 208 in the plunger is engageable in a blind recess in the handle under pressure of resilient means such as a to lock the plunger in a desired condition.

coil spring 209. The slide is normally urged by 10. A lockable handle according to Claim the spring to engage either the recess or the 125 9, including a cover late for a securing means slide so that depending on whether the plun- of the escutcheon plate.

ger is depressed or not, the plunger is locked 11. A lockable handle for a closure, sub in one or other position of the handle, that is stantially as hereinbefore described with refer locked or unlocked. When the key is inserted ence to the accompanying drawings.

in the key slot 205 and turned, it in turn turns 130 12.A closure including a lockable handle 3 GB2188671A 3 as hereinbefore described mounted thereon.

Printed for Her Majesty's Stationery Office by Burgess & Son (Abingdon) Ltd, Dd 8991685, 1987. Published at The Patent Office, 25 Southampton Buildings, London, WC2A lAY, from which copies may be obtained.

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