EP1723300A1

EP1723300A1 - Adjusting device for rotating and tilting bolts

Info

Publication number: EP1723300A1
Application number: EP05715685A
Authority: EP
Inventors: Dieter Ramsauer
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-10
Filing date: 2005-03-03
Publication date: 2006-11-22
Anticipated expiration: 2025-03-03
Also published as: EP1723300B1; DE502005003652D1; US8118334B2; DE202004003708U1; CN100476155C; WO2005090723A1; ATE391823T1; CN1930354A; US20080112774A1

Abstract

The description relates to an adjusting device for hook spindle rotating bolts, sash fastener rotating bolts, pull-turn bolts, swiveling bolts and the like of closures, particularly of closures for mounting in thin walls, such as sheet-metal cabinets with a frame and door, in which the closures have a closure driveshaft which is provided with an external thread and which holds a bolt so as to be axially adjustable, and/or a bolt which is provided with an internal thread or bore hole near its free end and which holds a back-engaging device so as to be adjustable perpendicular to the back-engagement plane. According to the invention, the rotating bolt carries or forms an internal thread for screwing in the closure driveshaft and one side of a coupling, such as a claw coupling, which acts by positive engagement, whose other side is held by the closure driveshaft so as to be rigid against rotation.

Description

Adjustment device for rotating and folding belt

Background of the Invention

The invention relates to an adjusting device for rotary and folding latches. In particular, it is an adjusting device for hook mandrel rotary latch, sash rotary latch, pull-turn latch, folding latch, of closures, in particular of closures for mounting in thin walls, such as sheet metal cabinets with frames and doors, whereby the closure A locking drive shaft provided with external threads, which holds a bolt axially adjustable, and / or has a bolt which is internally threaded or drilled near its free end and which holds a rear grip device adjustable perpendicular to the rear grip plane.

State of the art

From WO 0170629A1 a cam lock bolt lock is known, which can be installed in a thin wall with the clamp device, the lock having an externally threaded drive shaft, on which a bolt is held axially adjustable by two lock nuts. For the adjustment it is necessary to loosen the two locknuts, to put the bolt in the desired position and then to tighten the locknuts again. It is very cumbersome.

From WO 00/31365 a rotary bolt lock with a pulling device is known, in which the bolt is provided at its free end with an internal thread into which a rear grip device designed as a screw is held adjustable perpendicularly to the rear grip plane, again with a lock nut securing the setting. Here too, the adjustability is cumbersome because a lock nut has to be loosened, then the rear grip device has to be brought to the appropriate distance by turning, after which the lock nut is tightened again. WO 00/73605, see the figure of the summary, shows a folding lever lock, the folding lever itself forming the rear grip device. An adjustability is not provided.

Object of the invention

The object of the invention is to provide an adjusting device according to the type mentioned, which can either be set very easily and quickly, or which does not require any setting at all.

solutions

According to a first embodiment, the object is achieved in that the rotary bolt carries or forms an internal thread for screwing in the closure drive shaft and one side of a form-fitting coupling, such as a claw coupling, the other side of which is held in a rotationally rigid manner by the closure drive shaft.

According to a further, secondary solution, the rear grip device has an external thread for screwing into the thread of the free end of the bolt, as well as a frictional locking device, such as a lock nut, or a spring which, when the lock is in the closed position, urges the rear grip device onto the grip surface. In the first case, the setting can be fixed, but it is a bit cumbersome to achieve, in the second case setting is not necessary at all, but it is not fixed either.

According to a third subordinate embodiment, the drive shaft is provided with a non-round cross section, and has, for. B. an axially extending groove or flattened, and the rotary latch has a breakthrough matching this cross section, and that holding devices are provided which urge the rotary latch to the outside, and a stop device which hold the rotary latch axially, for example in the form of a the drive shaft screwed nut. If the drive shaft has a non-round cross-section and for Drive shaft torsionally rigid part of the claw coupling a breakthrough matching this cross-section, it would be advantageous according to a development of the invention if holding devices are provided which press the coupling parts or sides against one another. In particular, these holding devices can be formed by a spiral spring pushed onto the shaft. The coupling part resting on the spring can expediently have a projecting edge or grip collar in order to simplify handling.

The holding devices can also be a nut screwed onto the shaft, such as a knurled nut. I The actuating shaft, which is not round in cross-section, expediently has at least one axially extending flattening, and this flattening expediently bears an adjustment scale in order to facilitate handling and in particular to implement pre-settable distances.

Alternatively, the rear grip device can be a head bolt that is displaceable in the bolt against spring force. No adjustment is necessary there, but the spring device takes care of the respective adaptation to the distance between the door leaf on the one hand and the rear surface of the door frame on the other.

> In order to limit the movement of the bolt due to the spring force, it may be advantageous to provide a locking ring device in the base of the bolt.

In the embodiment described, the clutch disc has four claws or projections / recesses arranged at a distance of 90 degrees. The opening of the locking disk and the cross section of the shaft can be shaped, e.g. with four chords or flats, so that there are four positions offset by 90 degrees between the locking disk on the one hand and the shaft on the other, whereby a 90-degree locking is possible.

Brief description of the drawings The invention will now be explained in more detail using exemplary embodiments which are illustrated in the drawings.

It shows:

1A and 1B in a side view and a view from the rear of a rotary locking bolt with rapid adjustment of the locking bolt distance from the thin wall holding the closure;

2A and 2B show a side view and a view from below of the rotary latch used according to FIG. 1;

3A and 3B show a side view and a view from above of an adjusting ring with four locking positions;

4A and 4B are a side view and a cross-sectional view of a slotted drive shaft that simultaneously carries a scale;

5 shows a partial view of FIG. 1A to show the pressed-in state (closed position) of the closure;

6 shows a side view of a folding lever with an adjusting device designed according to the invention;

7A is a side view of a quick adjustment of the distance of the frame from the door leaf provided with a hook pin lock;

7B is a partial representation of another embodiment of the arrangement 7A;

FIGS. 8A, 8B and 8C in three views show a more precise illustration of the hook mandrel used in FIG. 7A;

9A shows a form of the drive shaft suitable for the above closures;

9B is a sectional view through the shaft to show the four flattenings selected here at a distance of 90 degrees;

10A and 10B in a side view and in a view from above the locking disc used in FIG. 9A;

11A and 11B show a view of the locking opening with a non-linear cross section and the head of a hook mandrel locking arranged therein;

12A and 12B show a rotary bolt lock in which the tongue can be adjusted in height or distance for mounting in the wall against a spring force by means of a helical screw;

12C is a top view of the tongue; and

12D is an axial sectional view through the tongue.

Detailed description of the invention

In Fig. 1A, a rotary twist lock 10 is shown, with its housing 18 having a flange 14 and union nut 16 in an opening 20 is held in a thin wall, such as door leaf 12, which housing 18 holds a locking drive shaft 24 provided with an external thread 22 for limited rotation and displacement, on which locking drive shaft 24 a latch 26 is held adjustable in the direction of the shaft axis 28. The bar 26, which can be seen here, has a bore 32 at its free end 30, with a rear grip device 34 designed as a bolt, which is adjustable perpendicular to the rear grip plane 36.

2A, a side view of part of the rotary latch 26, this rotary latch 26 has an internal thread 38 for screwing in the closure drive shaft 24 with its thread 22, the lower end of the thread according to FIG. 2A merging into a form-fitting coupling side 40, while the other side of this clutch, which is a claw clutch, forms a clutch disc 42 shown laterally in FIG. 3A and from above in FIG. 3B. The clutch disk or locking disk 42 has projections or claws 44 which are arranged at a distance of 90 degrees from one another and which can engage in correspondingly arranged recesses 46 on the end face or clutch side 40 of the bolt 26. The latch 26 can therefore be snapped into the disc 42 in steps of 90 degrees. The clutch disc 42 has a bore 50 which allows the closure drive shaft 24 to be pushed through, including the threads thereof, but one of the projections 44 extends into the lumen of this bore 50, see reference numeral 48, in order to cooperate with an axial slot or groove 52 which the shutter drive shaft 24 is formed. In this way, the locking disk 42 is axially displaceable, but not rotatable with respect to the drive shaft 24. Therefore, if the clutch disk 42 is pushed against the clutch side 40 of the latch 26, the latch 26 is held in the position shown, and a spring 54 located on the end of the housing 18 supports, the disc 42 presses into this blocking function, as can be seen in Fig. 1A. The clutch disc 42 forms a collar 56 so that it can be gripped more easily by hand and pushed downward against the force of the spring 54 in order to be able to make an adjustment of the tension lock. While the disk 42 is held disengaged with one hand, the rotary latch 26 can be rotated around the drive shaft 24 and thus the removal of the thread The rear grip device 34 can be changed from the rear grip surface 36. Once the correct setting has been reached, the locking disk 42 is released and couples again into the end face 40 of the rotary bolt 26, in which position the rotary bolt 26 is then held in a rotationally rigid manner with respect to the shaft 24.

The setting will be made in such a way that when the turn-lock bolt 26 is tightened, a door leaf 12 with its bevel 58, possibly with seal 60, is pressed against a frame 62, for example, so far that the seal 60 closes. This state is shown in Fig. 5. The spring-loaded bolt 34 enables the desired edge compensation and self-adjusting compression of the I seal 60. The spring 32 is supported on the one hand on the head shoulder area of the bolt 34 and on the other hand on a shoulder 64 which is formed by the bore 32. The locking ring 66 at the end of the bolt 34 prevents the bolt from falling out of the rotary bolt 26. The construction shown in FIGS. 1A and 1B thus enables presetting via the thread 38 of the bolt 26 and fine adjustment of the height adjustment by the displaceable arrangement of the formed by the bolt 34 rear grip device 34. It should be mentioned that the bolt head has a curve, see reference numeral 68, so that it can run onto the rear grip area 36 even in a partially tightened state.

) It should be added that the housing 18 has flats 70 (preferably four pieces at a distance of 90 degrees), which interact with corresponding constrictions in the opening 20 of the door leaf 12 and thus enable a torsionally rigid assembly at intervals of 90 degrees.

The groove 52 has a bottom, which bottom surface 72 can be used to attach a scale, see FIGS. 4A, 4B, which scale enables the latch 26 to be preset on the shaft 24 before being installed in a cabinet.

If the drive shaft 24 is also provided with a flat 74, there is the possibility of attaching a further scale 74, which will be more visible than in the groove bottom 72.

The feature of the spring-loaded bolt can also be used with an otherwise non-adjustable folding latch according to FIG. 6. The folding bolt lock 110 shown in FIG. 6 comprises a housing 118 which can be clipped into an opening in a door leaf 12, in which housing a folding bolt 126 which is pivotable about an axis, see 78, is arranged. The free end of the latch bolt 126 also carries a bore 132 in which a head bolt 168 is displaceably mounted against the force of a compression spring 133, with a locking washer 166 limiting the thrust path.

Here, too, the spring-loaded bolt leads to tolerance compensation in the case of inaccurate production and tolerance compensation in the presence of sealing measures.

Fig. 7A shows the application of the locking device according to the invention in a closure with hook mandrel device. A housing clipped into the door leaf 12 supports a shaft 224, on which the base of a hook mandrel locking part 226 is arranged. The mandrel passes through a bore or locking opening 80, see FIGS. 11A and 11B, in the frame 62, wherein in one position of the dome, see FIG. 11B, the hooks 82 can pass through the opening 80 in a 90 degree manner twisted position, see Fig. 11A, however not. 11A is the closed position and FIG. 11B the open position. For tolerance compensation, for example as a result of the seal 260, the hook mandrel with its internal thread 238 can be screwed on and off on the shaft 224 provided with an external thread, in order to be able to make an exact adjustment of the engagement surface of the hook 234 with respect to the door leaf surface. In order to subsequently block the mandrel in a certain position, a locking disc 244 is used, which is either held by a spring 254 according to FIG. 7B, or by a knurled nut 84 according to FIG. 7A, which can be screwed onto the thread of the drive shaft 224 , Instead of a groove, the drive shaft 224 has a non-round outer cross section, to which the inner cross section of the locking disk 226 is adapted, so that the locking disk 226 can be pushed axially back and forth on the shaft 224, but cannot be rotated. The hooks 82 can point rigidly outwards, but above, to simplify the closing when the drive shaft is not in the closed position, can be designed to be flexible, as shown in FIGS. 8A, 8B and 8C, for example by levers which spring back into the mandrel against spring force, as shown in FIG. 13A and 13B by means of slide arrangements which are resilient against spring force and, according to FIG. 14, by a mandrel which has a fulcrum for a lever.

In the embodiment shown in FIGS. 12A and 12B, a lock housing is held in a door leaf 12 in a manner similar to that in FIG. 1A by means of a union nut. Flats prevent rotation in the opening in the thin wall 12. The housing 318 supports a drive shaft 324, on which shaft 324 a tongue 326 without thread, but secured against rotation, can slide axially, for example due to a groove 352, into which corresponding projection of the rotary latch 326 engages. A compression spring 354, which is supported on the housing 318 and surrounds the shaft 324, presses the tongue 326 against a knurled nut 384, which cooperates with a thread on the shaft 324 and thus enables the distance between the tongue engagement surface 368 and the door leaf plane 36 to be adjusted.

According to FIGS. 12C, 12D, the tongue 326 can have a toothing 86 which engages with a corresponding toothing of the knurled nut 384 in order to lock it.

Furthermore, according to FIG. 12D, the tongue can have a cylindrical groove 88 for receiving the compressed spring 324.

Commercial evaluability

The invention can be evaluated commercially in control cabinet construction. LIST OF REFERENCE NUMBERS

10, 110 pull-turn bolt lock

12 thin wall, door leaf

14 flange

16 union nut

18, 318 housing

20 breakthrough

22, 322 external thread

24; 224, 324 breech drive shaft

26, 126, 226, 326 bars; Hook Dorn-locking part; Tongue; locking disc

28 shaft axis

30 free end

32, 132 bore

33, 133 spring; Back-engaging device

34, 234 bolts, hooks; Back-engaging device

36 Rear grip level 8, 238 internal thread 0 coupling side 2 coupling disc, locking disc 4 projection, claw 6 recess 8 projection 0 hole, opening 2, 254 groove , 224, 354 (spiral) spring, holding devices collar fold, 260 seal frame shoulder, 166 lock washer, 168, 368 rear grip device, rounding off flattening flats, bottom scale, flattening flattening axis bore hook, 384 anchor devices, nut, knurled nut toothed surface (des Riegel's) cylindrical groove

Claims

Expectations:

1. Adjustment device for rotary bolts, such as hook-mandrel rotary bolts, cam locks, pull-turn bolts, of closures, in particular of closures for mounting in thin walls, such as door leaf (12) and door frame (62), the closures (10) an externally threaded (22) locking drive shaft (24), which holds a bolt (26) axially adjustable, and / or a bolt (26) which is provided with an internally threaded (38) or bore near its free end (30) and which has a rear engagement device (34) adjustable perpendicular to the rear grip plane (36), characterized in that the rotary bolt (26) has an internal thread (38) for screwing in the locking drive shaft (24) and one side of a form-fitting coupling, such as a claw coupling, carries or forms the other Side of the closure drive shaft (24) is held in a rotationally rigid manner.

2. Adjustment device for sash locks, pull-turn bolts, locks, in particular locks for mounting in thin walls, such as sheet metal cabinets with frame (64) and door (12), the locks having an externally threaded (322) locking drive shaft (324), which holds a bolt (326) axially adjustable, and / or has a bolt which is provided with an internal thread or bore near its free end and which holds a rear grip device (368) adjustable perpendicular to the rear grip plane, characterized in that the drive shaft (324 ) a non-round cross-section, e.g. has an axially extending groove (352) or flattened, and the bolt (326) has a breakthrough matching this cross-section, and that holding devices (354) are provided which urge the bolt (326) outwards, and stop devices (384), which hold the bolt (326) axially, like a nut (384) which can be screwed onto the drive shaft (324).

3. Adjustment device for rotary or folding latches, of closures, in particular of closures for mounting in thin walls, such as sheet metal cabinets Frame and door, the closure having an externally threaded closure drive shaft, which holds a bolt axially adjustable, and / or a bolt (126) provided with an internally threaded or bore (132) near its free end, which has a rear engagement device (168, 133) holds adjustable vertically to the rear grip level, characterized in that the rear grip device either has an external thread for screwing into the thread of the free end of the bolt and a frictional locking, such as lock nut, or a spring (133) which, when the lock (110) is in the closed position the rear grip device (168, 133, 166) urges towards the rear grip surface (62).

4. Adjusting device according to claim 1, characterized in that the drive shaft (24) has a non-round cross section, e.g. has an axially extending groove or flattened portion (52, 74), and the part (42) of the claw coupling which is rigid with respect to the drive shaft has an opening (50) matching this cross section, and that holding devices (54) are provided which secure the coupling parts (42, 40) or press pages together.

5. Adjusting device according to claim 4, characterized in that the holding devices are formed by a spiral spring (54) pushed onto the shaft (24).

6. Adjusting device according to claim 5, characterized in that the coupling part (42) resting on the spring (54) has a projecting edge or grip collar (56).

7. adjusting device according to claim 4, characterized in that the holding devices are formed by a nut screwed onto the shaft (224), such as knurled nut (84).

8. adjusting device according to one of claims 4 to 7, characterized in that the non-round in cross-section actuating shaft (24) has at least one axially extending flat (70, 72), and that this flat carries an adjustment scale (74).

9. Adjusting device according to one of claims 4 to 7, characterized in that the rear grip device is a in the bolt (26) against spring force (33) displaceable head bolt (34).

10. Adjusting device according to claim 9, characterized in that the foot of the bolt carries a locking ring (66, 166) which limits the movement of the bolt due to the spring force (33, 133).

11. Adjusting device according to one of claims 4 to 10, characterized in that the clutch disc or locking disc (42) has four claws or projections / projections (44, 46) arranged at a distance of 90 degrees.

12. Adjusting device according to claim 11, characterized in that the opening of the locking disc (226) of the shaft is shaped, e.g. is provided with four chords or flats that four positions offset by 90 degrees between the locking disc (226) and shaft (224) and thus a 90 degree locking is possible.

13. Adjusting device according to claim 2 or 7, characterized in that the bolt (326) has a toothed surface (86) which engages with a corresponding toothing of the nut (384) this locking.

14. Adjusting device according to one of claims 2, 4 or 5, characterized in that the bolt (326) has a cylindrical groove (88) for receiving the compressed spring (354).