EP0552033A1 - Locking handle - Google Patents
Locking handle Download PDFInfo
- Publication number
- EP0552033A1 EP0552033A1 EP93300217A EP93300217A EP0552033A1 EP 0552033 A1 EP0552033 A1 EP 0552033A1 EP 93300217 A EP93300217 A EP 93300217A EP 93300217 A EP93300217 A EP 93300217A EP 0552033 A1 EP0552033 A1 EP 0552033A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- button
- locking
- push button
- catch
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B13/00—Devices preventing the key or the handle or both from being used
- E05B13/002—Devices preventing the key or the handle or both from being used locking the handle
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B13/00—Devices preventing the key or the handle or both from being used
- E05B13/10—Devices preventing the key or the handle or both from being used formed by a lock arranged in the handle
- E05B13/106—Devices preventing the key or the handle or both from being used formed by a lock arranged in the handle for handles pivoted about an axis perpendicular to the wing
Definitions
- the push button is pivotally mounted on the handle by means of a fixed pivot pin carried by the handle and a channel shaped socket which is carried by the push button and is a snap-fit onto the pivot pin so that the pin is received captively by the socket and the socket can rotate about the pin.
- This arrangement facilitates manufacture and assembly of the locking handle, especially if the push button comprises a moulded plastics body and the socket is formed integrally with the body.
- manufacture and assembly of the locking handle may be further simplified if the resilient bias acting on the push button is provided by a leaf spring which is formed integrally with the body of the push button and bears against a portion of the handle.
- the locking handle shown in Figures 1 and 2 comprises a fixing plate 1 of elongate, substantially rectangular shape, the plate having a substantially flat undersurface 2 and an upper surface provided with a raised central portion 3 between opposite end portions 4 and 5 each of which has two recessed, countersunk screw holes 4a,4b and 5a,5b centred on the longitudinal axis of the fixing plate.
- the underside of the fixing plate is provided with a recess 6 beneath the raised central portion 3, and the raised portion 3 is provided with an aperture 7 communicating with the recess 6, the axis of the aperture 7 being parallel to the axes of the recessed screw holes 4a,4b, 5a,5b and perpendicular to the plane of the flat undersurface 2.
- a spring 25 is mounted to act between the push button 21 and the hand grip end 26 of the passage 20 in order to bias the button to pivot about the pin 24 in a direction towards the opposite end 27 of the passage 20, i.e. towards the pivot axis of the handle.
- the spring 25 comprises a torsion spring which is mounted on the push button 21 so that opposite ends of the spring act on the hand grip end 26 of the passage 20 and the facing end of the button 21 to press them apart.
- the spring 25 may take any suitable alternative form.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
- The invention relates to a locking handle for a door or window, the locking handle being of the kind comprising a fixing plate, a handle which is pivotally mounted on the fixing plate for movement between open and closed positions, and a catch which automatically engages when the handle is moved into the closed position to prevent subsequent movement of the handle to an open position until the catch is released.
- Locking handles of this general type are well known, and may be of the cockspur type in which the handle has a nose arranged to engage with a striker or keep plate, or of the espagnolette type in which the handle carries a drive spindle which is rotated by turning the handle in order to operate an espagnolette locking mechanism.
- According to the invention the catch of a locking handle of the kind described comprises a push button which is pivotally mounted on the handle and is resiliently biased to urge a first portion of the button into engagement with a first recess of the fixing plate when the handle is in the closed position, said engagement preventing turning of the handle, and the arrangement is such that depression of the push button releases the catch by rocking the button against its resilient bias to move the first portion of the button out of the first recess in a direction which is substantially at right angles to the direction in which the button is depressed.
- When the catch has been released, the handle can be turned to its open position so that the door or window can be opened, and the push button can be released as soon as the handle has been turned sufficiently for the button to be moved out of alignment with the first recess of the fixing plate. When the door or window is closed and the handle is turned to its closed position, the button comes into engagement with a portion of the fixing plate and is caused by a camming action to rock against the resilient bias so as to allow the handle to be moved to the closed position, whereupon the button is realigned with the first recess and is caused by the resilient bias to move into the first recess to lock the handle in the closed position.
- Preferably the push button is arranged to be depressed in a direction which is substantially parallel to the pivot axis of the handle, and the push button is resiliently biased by means of a suitable spring, such as a torsion spring or a compression spring, acting between the button and a portion of the handle.
- Preferably the push button is pivotally mounted on the handle by means of a fixed pivot pin carried by the handle and a channel shaped socket which is carried by the push button and is a snap-fit onto the pivot pin so that the pin is received captively by the socket and the socket can rotate about the pin. This arrangement facilitates manufacture and assembly of the locking handle, especially if the push button comprises a moulded plastics body and the socket is formed integrally with the body. In this case manufacture and assembly of the locking handle may be further simplified if the resilient bias acting on the push button is provided by a leaf spring which is formed integrally with the body of the push button and bears against a portion of the handle.
- If additional security is required, the push button may be provided with a key operated locking plunger which is movable between a retracted position within the button and a locking position in which it projects from the button, operation of the key to move the plunger to its locking position when the first portion of the button is in engagement with the first recess causing the plunger to engage in a second recess of the fixing plate to prevent depression of the button to release the catch. Thus, operation of the key to move the plunger to its locking position when the handle is closed and the catch engaged acts to lock positively the handle in this position. The catch cannot then be released to allow the handle to be turned to the open position until the key has been used to retract the locking plunger from the second recess.
- Two embodiments of a locking handle in accordance with the invention will now be described, by way of example, with reference to the accompanying drawings, in which:-
- Figure 1 is a cross-section through part of a first embodiment showing the handle in the closed position and the catch engaged and locked;
- Figure 2 is a view similar to that of Figure 1 but showing the catch unlocked and released to allow the handle to be turned to the open position;
- Figure 3 is a cross-section through part of the second embodiment showing the handle in the closed position and the catch engaged and locked;
- Figure 4 is a view similar to that of Figure 3, but showing the catch unlocked and released to allow the handle to be turned to the open position;
- Figure 5 is a section through the catch taken on the line V-V in Figure 3; and,
- Figure 6 is a view similar to that of Figure 5 but showing the locking plunger of the catch in its retracted position.
- The locking handle shown in Figures 1 and 2 comprises a
fixing plate 1 of elongate, substantially rectangular shape, the plate having a substantiallyflat undersurface 2 and an upper surface provided with a raisedcentral portion 3 betweenopposite end portions 4 and 5 each of which has two recessed,countersunk screw holes recess 6 beneath the raisedcentral portion 3, and the raisedportion 3 is provided with anaperture 7 communicating with therecess 6, the axis of theaperture 7 being parallel to the axes of the recessedscrew holes flat undersurface 2. At its end adjacent theend 5 of thefixing plate 1, thecentral portion 3 has a pair of side walls 8 (only one of which is shown) extending parallel to the longitudinal axis of thefixing plate 1 towards theend 5 on opposite sides of the screw hole recess 5b, the outer sides of the walls 8 being flush with the sides of thefixing plate 1, and the inner sides of the walls 8 defining, together with theend wall 9 of theportion 3, arecess 10 which is open at the top and its end remote from thecentral portion 3. - The locking handle also comprises a
handle 11 which is pivotally mounted on thefixing plate 1, thehandle 11 having abody portion 12 provided with aboss 13 projecting from the underside of the body portion and received rotatably in theaperture 7 of the raisedcentral portion 3 of the fixing plate so that thehandle 11 can turn relative to the fixing plate about a pivot axis coincident with the axis of theaperture 7. Abearing sleeve 14 is provided between theboss 13 and part of theaperture 7, and thefree end 15 of theboss 13 is swaged radially outwardly over bearingwashers 16 to prevent removal of the handle from the fixing plate, although any other suitable retention method may be adopted if preferred. Theboss 13 is provided with abore 17 which is open at thefree end 15 for receiving a conventional square sectioned spindle (not shown) for driving an espagnolette mechanism, although as mentioned earlier the handle may alternatively be of the cockspur type. - The
handle 11 also has ahand grip portion 18 which extends from the upper end of thebody portion 12 in a direction substantially perpendicular to the pivot axis of the handle and parallel to the plane of theundersurface 2 of the fixing plate. In addition, thehandle 11 has alocking catch 19 housed in apassage 20 of substantially rectangular section provided in thebody portion 12 between theboss 13 and thehand grip portion 18, thepassage 20 extending in a direction substantially parallel to the pivot axis of the handle and being open at both the upper and lower surfaces of thebody portion 12. - The
locking catch 19 comprises a mouldedplastics push button 21 of substantially rectangular section having a width slightly less than the width of thepassage 20 so that thebutton 21 fits closely between the side walls of thepassage 20. At its upper end edge nearest thehand grip portion 18 of the handle, thepush button 21 is formed with anintegral mounting portion 22 defining a transversely oriented channel shapedsocket 23 which encloses a 270° arc and is a snap-fit over a fixedpivot pin 24 extending transversely between the side walls of thepassage 20 near the upper end of the passage adjacent thehand grip portion 18 so that thepush button 21 is pivotally mounted on thepivot pin 24 for rocking movement in the longitudinal plane of thehandle 11. Aspring 25 is mounted to act between thepush button 21 and thehand grip end 26 of thepassage 20 in order to bias the button to pivot about thepin 24 in a direction towards theopposite end 27 of thepassage 20, i.e. towards the pivot axis of the handle. In this embodiment, thespring 25 comprises a torsion spring which is mounted on thepush button 21 so that opposite ends of the spring act on thehand grip end 26 of thepassage 20 and the facing end of thebutton 21 to press them apart. As mentioned earlier, however, thespring 25 may take any suitable alternative form. - As shown in Figure 1, the
upper end 28 of thepush button 21 projects from thepassage 20 at the upper surface of the handle, and thelower end 29 of the button projects from the passage at the undersurface of the handle. When thehandle 11 is in its closed position shown in Figure 1, i.e. with the longitudinal axis of thehandle 11 parallel to the longitudinal axis of thefixing plate 1, apart 29a of the lower end of thepush button 21 is received in therecess 10 between the side walls 8 projecting from the raisedcentral portion 3 of the fixing plate, thebutton 21 being held in this position with theend portion 29a engaging theend wall 9 of therecess 10 under the action of thespring 25. In this position thecatch 19 is engaged and prevents thehandle 11 from being turned to an open position. - It will be further noted that in this position of the
handle 11 and thecatch 19, alongitudinal bore 30 extending through thepush button 21 is substantially co-axially aligned with thescrew recess 5b which opens in the upper surface of thefixing plate 1 between the side walls 8 of therecess 10. Rotatably mounted within thebore 30 is acylindrical locking plunger 31 having a parthelical cam slot 32 provided in its external surface, this slot receiving and cooperating with alug 33 fixed to the inner wall of thebore 30. At its upper end, thelocking plunger 31 is provided with akeyway 34 for receiving the lower end of anoperating key 35 which is insertable into thebore 30 through aslotted entrance guide 36 mounted in the upper end of thebore 30. Following insertion of thekey 35 into engagement with thelocking plunger 31, rotation of the key in one direction will rotate thelocking plunger 31 so that interaction of thelug 33 and theslot 32 causes the locking plunger to move axially from a retracted position within thebore 30 to a locking position in which thelower end 37 of theplunger 31 projects from thelower end 29 of thepush button 21 into therecess 5b. This prevents thepush button 21 from being rocked about itspivot pin 24, and hence locks thecatch 19 in engagement with therecess 10. Turning thekey 35 back in the opposite direction unlocks the catch by withdrawing thelocking plunger 31 from therecess 5b back to its retracted position within thebore 30. - With the
locking plunger 31 retracted, thecatch 19 can be disengaged from therecess 10 to allow thehandle 11 to be turned to its open position. Disengagement of thecatch 19 is caused by depressing theupper end portion 28 of thepush button 21 towards thefixing plate 1, i.e. in a direction substantially parallel to the pivot axis of the handle, thus causing thepush button 21 to pivot about thepin 24 so that thelower end 29 of the push button moves away from the raisedcentral portion 3 of the fixing plate to a position in which theportion 29a of the lower end of the button has moved clear of therecess 10 as shown in Figure 2 . Thehandle 11 can then be turned to the open position, and thepush button 21 can be released to allow thespring 25 to return it to its rest position. - When the handle is moved back to the closed position, the
lower end portion 29a of thebutton 21 comes into engagement with the outer surface of the nearer side wall 8 of therecess 10, and thebutton 21 is thereby caused to rock about thepivot pin 24 against the action of thespring 25 as the handle moves further towards the closed position, the wall 8 and the lower end portion of the button being shaped to facilitate this camming action. In this way thepush button 21 is gradually deflected to enable it to move past the wall 8 as the handle is moved to the closed position, and when the handle reaches the fully closed position thepush button 21 becomes aligned with therecess 10 and the bias exerted by thespring 25 acts to move thelower end 29 of the button into engagement with therecess 10 to hold the handle in the closed position. If desired, the handle can then be locked in this position by inserting and turning thekey 35 to advance thelocking plunger 31 into therecess 5b. - The embodiment illustrated in Figures 3 to 6 is identical to that just described with reference to Figures 1 and 2 except with regard to the construction and arrangement of the central bore 30' through the push button 21' and the locking plunger 31' which is mounted within the bore 30'. In the second embodiment, the locking plunger 31' comprises two parts, a
first part 40 which receives the key (not shown) and is rotatable but axially fixed relative to the button 21', and asecond part 41 which is connected to thefirst part 40 so that it is rotatable with the first part and is axially movable relative thereto, the outer surface of thesecond part 41 having a part helical slot 32' which receives and cooperates with a lug 33' provided on the internal surface of the bore 30'. - This arrangement enables the handle to be deadlocked in the closed position, the
first part 40 of the locking plunger 31' comprising a deadlocking cylinder which cannot be rotated without insertion of the correct key. Thispart 40 has an annularperipheral groove 42 which receives alug 43 provided on the internal surface of the bore 30' in order to prevent axial movement of thepart 40 within the bore 30' while permitting rotation thereof, and at its lower end thepart 40 has an axiallyoffset leg 44 projecting in an axial direction, theleg 44 having a radially inwardly directedfoot 45 at its free end. Theleg 44 and itsfoot 45 are received in an axially extendingslot 46 in thesecond part 41, thepart 41 having ashoulder 47 at the upper end of theslot 46 which is cooperable with thefoot 45 to prevent the two parts from becoming axially separated. The interengagement of theleg 44 andfoot 45 in theslot 46 locks the twoparts part 41 to move axially relative to thepart 40 between a retracted position as shown in Figures 4 and 6 and a locking position in which it projects from the lower end of the push button 21' as shown in Figures 3 and 5. Thus, insertion and rotation of the operating key in thefirst part 40 will cause thelower part 41 to rotate with thefirst part 40 and simultaneously to move axially relative thereto as a result of the interengagement of the lug 33' and the part helical slot 32' in the outer surface of thepart 41. Rotation in one direction causes thepart 41 to move from the retracted position to the locking position in which, when thehandle 11 is closed and the catch 19' engaged as shown in Figure 3, thepart 41 projects into therecess 5b in thefixing plate 1. Rotation in the opposite direction will move thepart 41 back to its retracted position to allow the catch 19' to be released and the handle to be opened. - In both embodiments described above, the
lug 33,33' is mounted on the inside surface of thebore 30,30' of the push button, and the parthelical slot 32,32' with which it cooperates is provided in the outer surface of thelocking plunger 31,31'. It will of course be appreciated, however, that the position of these parts may be reversed, so that the slot is provided in the internal surface of thebore 30,31' and the lug is provided on the outer surface of the locking plunger.
Claims (9)
- A locking handle for a door or window comprising a fixing plate (1), a handle (11) which is pivotally mounted on the fixing plate for movement between open and closed positions, and a catch (19) which automatically engages when the handle is moved into the closed position to prevent subsequent movement of the handle to an open position until the catch is released, characterised in that the catch (19) comprises a push button (21) which is pivotally mounted on the handle (11) and is resiliently biassed to urge a first portion (29a) of the button into engagement with a first recess (10) of the fixing plate (1) when the handle is in the closed position, said engagement preventing turning of the handle, and the arrangement is such that depression of the push button (21) releases the catch (19) by rocking the button against its resilient bias to move the first portion (29a) of the button out of the first recess (10) in a direction which is substantially at right angles to the direction in which the button is depressed.
- A locking handle according to claim 1, in which the push button (21) is depressed in a direction which is substantially parallel to the pivot axis of the handle (11).
- A locking handle according to claim 1 or claim 2, in which the push button (21) is pivotally mounted on the handle (11) by means of a fixed pivot pin (24) carried by the handle and a channel-shaped socket (23) which is carried by the push button and is a snap-fit onto the pivot pin so that the pin is received captively by the socket and the socket can rotate about the pin.
- A locking handle according to claim 3, in which the push button (21) comprises a moulded plastics body and the socket (23) is formed integrally with the body.
- A locking handle according to claim 4, in which the push button (21) is resiliently biassed by means of a leaf spring which is formed integrally with the body and bears against a portion (26) of the handle (11).
- A locking handle according to any one of claims 1 to 4, in which the push button (21) is resiliently biassed by means of a torsion spring (25) or a compression spring acting between the button and a portion (26) of the handle.
- A locking handle according to any one of the preceding claims, in which the push button (21) is provided with a key operated locking plunger (31) which is movable between a retracted position within the button and a locking position in which it projects from the button, operation of the key (35) to move the plunger (31) to its locking position when the first portion (29a) of the button is in engagement with the first recess (10) causing the plunger to engage in a second recess (5b) of the fixing plate (1) to prevent depression of the button to release the catch.
- A locking handle according to claim 7, in which the locking plunger (31) is mounted to rotate about its own axis in response to insertion and turning of the key (35), rotation of the plunger causing it to move axially between its retracted and locking positions as a result of engagement of a follower member (33) carried by the push button (21) or the plunger (31) in a helical slot (32) provided in the plunger or the push button respectively.
- A locking handle according to claim 7, in which the locking plunger (31') is in two parts, a first part (40) which receives the key and is rotatable but axially fixed relative to the push button (21') when the key is turned, and a second part (41) which is connected to the first part (40) so that it is rotatable with the first part and is axially movable relative thereto, the second part (41) having the follower member (33') or the helical slot (32').
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9201060A GB2263304B (en) | 1992-01-17 | 1992-01-17 | Locking handle |
GB9201060 | 1992-01-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0552033A1 true EP0552033A1 (en) | 1993-07-21 |
EP0552033B1 EP0552033B1 (en) | 1995-06-14 |
Family
ID=10708807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19930300217 Expired - Lifetime EP0552033B1 (en) | 1992-01-17 | 1993-01-14 | Locking handle |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0552033B1 (en) |
DE (1) | DE69300186T2 (en) |
GB (1) | GB2263304B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2291927A (en) * | 1994-07-29 | 1996-02-07 | Basta Ireland Ltd | Cockspur handle latch |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IES940267A2 (en) * | 1994-03-28 | 1994-08-24 | Patrick J Daly | Fastener including lock |
GB2331549B (en) * | 1997-11-21 | 2001-08-01 | Securistyle Ltd | A handle assembly |
US6178789B1 (en) * | 1999-03-30 | 2001-01-30 | Kason Industries, Inc. | Convertible cylinder lock |
US7484390B1 (en) | 2007-03-28 | 2009-02-03 | Kason Industries, Inc. | Lockable strike for walk-in cold rooms |
US9089214B2 (en) | 2009-09-04 | 2015-07-28 | Daniel Kelly | Storage assembly with angled support surfaces |
US9068376B2 (en) | 2013-04-22 | 2015-06-30 | Kason Industries, Inc. | Strike for walk-in cold rooms |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2076455A (en) * | 1980-05-14 | 1981-12-02 | Titon Hardware | Lockable window fastener |
GB2188671A (en) * | 1986-04-07 | 1987-10-07 | Regent Lock Co Ltd | A handle |
EP0260517A2 (en) * | 1986-09-13 | 1988-03-23 | HOPPE GmbH + Co. Kommanditgesellschaft | Handle, in particular window handle |
GB2203481A (en) * | 1987-04-16 | 1988-10-19 | Schlegel | Lockable handle |
GB2204909A (en) * | 1987-05-19 | 1988-11-23 | Mckechnie Metals Ltd | A handle assembly for a pivoted window or door |
AT387822B (en) * | 1982-02-12 | 1989-03-28 | Melchert Beschlaege | TURNING HANDLE FOR DOORS, WINDOWS OR THE LIKE |
DE3943290A1 (en) * | 1989-05-22 | 1990-11-29 | Wehag Leichtmetall Gmbh | Handle for door or window - has axial slider to couple handle to catch mechanism |
GB2233702A (en) * | 1989-07-11 | 1991-01-16 | Mckechnie Metals Ltd | A handle assembly for a pivoted window or door |
-
1992
- 1992-01-17 GB GB9201060A patent/GB2263304B/en not_active Expired - Fee Related
-
1993
- 1993-01-14 EP EP19930300217 patent/EP0552033B1/en not_active Expired - Lifetime
- 1993-01-14 DE DE1993600186 patent/DE69300186T2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2076455A (en) * | 1980-05-14 | 1981-12-02 | Titon Hardware | Lockable window fastener |
AT387822B (en) * | 1982-02-12 | 1989-03-28 | Melchert Beschlaege | TURNING HANDLE FOR DOORS, WINDOWS OR THE LIKE |
GB2188671A (en) * | 1986-04-07 | 1987-10-07 | Regent Lock Co Ltd | A handle |
EP0260517A2 (en) * | 1986-09-13 | 1988-03-23 | HOPPE GmbH + Co. Kommanditgesellschaft | Handle, in particular window handle |
GB2203481A (en) * | 1987-04-16 | 1988-10-19 | Schlegel | Lockable handle |
GB2204909A (en) * | 1987-05-19 | 1988-11-23 | Mckechnie Metals Ltd | A handle assembly for a pivoted window or door |
DE3943290A1 (en) * | 1989-05-22 | 1990-11-29 | Wehag Leichtmetall Gmbh | Handle for door or window - has axial slider to couple handle to catch mechanism |
GB2233702A (en) * | 1989-07-11 | 1991-01-16 | Mckechnie Metals Ltd | A handle assembly for a pivoted window or door |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2291927A (en) * | 1994-07-29 | 1996-02-07 | Basta Ireland Ltd | Cockspur handle latch |
GB2291927B (en) * | 1994-07-29 | 1996-04-24 | Basta Ireland Ltd | A fastener |
Also Published As
Publication number | Publication date |
---|---|
DE69300186D1 (en) | 1995-07-20 |
GB9201060D0 (en) | 1992-03-11 |
DE69300186T2 (en) | 1996-02-15 |
EP0552033B1 (en) | 1995-06-14 |
GB2263304B (en) | 1994-12-07 |
GB2263304A (en) | 1993-07-21 |
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