DK148756B - DEVICE FOR INTERRUPTION OF A SLIDING DOOR OR SIMILAR BODY CLOSING MOVEMENT IN A FRAME OR FRAME - Google Patents

Description

in 148756

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an apparatus for interrupting the closing movement of a sliding door or similar member in a frame or frame at a distance from the frame or frame which prevents clamping between it and the door, which apparatus 5 is provided with a locking member slidable in the direction of movement of the door. and is arranged to cooperate with a touch surface on a stop and with a buffer at the closing movement of the door.

DE-AS No. 10 50 231 discloses such an apparatus for use on railway vans, which serves to prevent damage to personnel working in the doorway as a result of the sliding door closing itself, e.g. in case of impact during the ranking of the mail cart. However, such appliances can also be used advantageously in buildings with sliding doors, as there will also be a risk of personal injury by clamping between the sliding door and the door frame if the door is not equipped with an apparatus of the kind mentioned. Closing a door with such an apparatus occurs in the usual manner, but the closing is interrupted when there is still a gap between the door and the frame, which at least prevents a hand from being jammed. For the subsequent complete closing of the door, the known apparatus requires the operation of a release mechanism by means of a swivel handle, which is at least in residential properties with sliding doors an undesirable relatively cumbersome measure which makes it difficult to fully close the door in each case. falls for children and persons unfamiliar with the device.

It is therefore an object of the invention to provide an apparatus of the kind in question which is designed to release the door to complete closure, without any special manipulation or operation of a release mechanism, after interrupting the door's closing movement.

148756 2 <»

This is achieved according to the invention by the measures set out in the characterizing part of claim 1.

When closing a sliding door equipped with such an appliance after it has been opened fully or at least sufficiently long, the closing movement of the appliance is interrupted when there is still a gap between the door edge and the frame sufficiently wide to prevent clamping . However, due to the spring and / or weight load of the locking member, this is brought to a release position as soon as the first part of the closing movement of the door is completed. The door which is still standing can then easily be closed completely. Return of the locking member to the locking position occurs automatically by opening the door, by the locking door control means and also by the interrupted closing movement being in the switching position of the locking member. Conversely, at the fully opened door, the locking means is in the switching position of the stop means, which, when closed, can pass unobstructed past the control means. Thus, by means of the apparatus according to the invention, the door is automatically released for the final closing movement, and the apparatus is automatically brought into its initial position upon subsequent opening of the door.

The stop means according to claim 2 is designed as a brake or shock absorber. A shock absorber has the advantage that it prevents the impact-like shut-off of the often heavy door and is therefore preferable at least for large doors. On the other hand, after the first stop of the door closing, both forms of the stop means release the locking means so that the door can then be fully closed. 1 2 3 4 5 6

According to claim 3, the brake is equipped with elastically compressed 2 brake pads, through which a shaft of the stop means 3 is passed through which a spacer is arranged between consecutive slats 4. The slats may consist of rubber, plastic or other elastic material, in particular "volcanic" (reg. Trademark).

3 148756

According to claim 4, the abutment surfaces of the locking means and the guide means, respectively, are located on a common abutment which is fixed to the door, while the locking means, the control means, the control box, the return cam and the stop means are arranged on a rail-shaped, fixed frame.

The impact may be adjustable in height, with particular reference to the use of two interlocking parts. After adjustment, the two parts of the stop may conveniently be secured in their mutual position, e.g.

10 using a clamping screw. When the locking means and the control means are each preferably formed as a two-arm lever, the length of their arms at predetermined pivot angle will depend on the height position and height adjustment area of the stop, respectively. Further, the stop 15 may conveniently be formed with a rough surface, e.g.

with a rifle so that the locking means will not be able to slide on the impact surface.

The springs cooperating with the locking means or the steering means are according to claim 5, screw springs arranged on the pivot shaft of the locking means and the steering means respectively. Furthermore, 20 are, cf. claim 6 the control means and the locking means connected to each other by at least one rod, a weld or a similar means.

Finally, according to claim 7, the fastening means for at least the guide cam and the return cam are also fastening means for the holder on the frame. 1

The apparatus of the invention may have small dimensions and yet be capable of absorbing large forces. It can also be mounted on existing sliding doors, sliding windows and the like. The brake or shock absorber or a similar stop means can be selected to fit the weight of the door.

4 148756

The invention will be explained in more detail below with reference to the drawing, in which fig. 1 is a partial sectional view of the upper part of a door frame and a sliding door therein with an apparatus according to the invention, approximately in the position where the closing movement of the door is interrupted before the door is fully closed; FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 shows the same as FIG. 1 but with the door shifted further in the direction towards the fully closed position, and fig. 4 shows the same as FIG. 1 but during reopening of the door.

10 The main components of an apparatus according to the invention include a locking means 1, a control means 2, a stop means 3, a guide surface 4 formed on a guide cam 5, a guide surface 6 formed on a return cam 7, a brake assembly 8 and a locking member 8. the control member 15 joint stop 9. With the exception of the stop 9 found on the door 18, all of the said parts are placed on the door frame 34. Instead of a joint stop, two stops may be located in the displacement directions of the door, the distance between which is selected under the design and arrangement of the locking means, the guide means, the return cam and the control box, The locking means 1 and the control means 2 each consist of a two-armed lever under the influence of each spring 11 and 12, respectively, so that the locking means of its spring 11 normally 25 is held in an upwardly rotated position while the control means of its spring 12 is held in a downwardly rotated position, cf. FIG. 3. The two springs 11 and 12 are wound about the pivot shaft 13 and 14 respectively for locking means 1 and for the control means 2. These two shafts 13 and 14 simultaneously serve 30 for attaching two lugs 15 and 16, which are arranged on each side of the locking means. and the control means and hold them against displacement. The unit formed by the two lugs 15 and 16, by the locking means 1 and by the control means 2, is displaceable back and forth as shown by the double arrow 10 in a rail-shaped holder 17, which preferably has a U-shaped cross-section.

When the door 18 from the one in FIG. 3 is displaced opposite to the direction shown by arrow 19, the stop 9 can freely pass under the locking means 1. When the stop has also passed the control box 5, it strikes an abutment surface 20 on the free end of the control 21 arm 21, and when still for shooting. the stop 9 carries the guide means 2 with it, so that the locking means 1 is also displaced in the opposite direction by the arrow 19 through the lugs 15 and 16. Depending on the positioning of the control box 5 and the return box 7, the now 15 front ends 22 and 23 of the locking means 1 respectively meet the control means. 2 immediately or after some displacement, the guide surface 4 and 6, respectively, on the control box 5 and on the return cam 7, respectively, whereby the locking means and the control means are each imparted a pivotal movement against the influence of their springs 11 and 12, respectively, so that the control means arm 21 is pivoted upwards. in the rail-shaped holder 17, while the locking member arm 24 is pivoted downwards, out of the holder. The further the end 23 of the guide 2 is pivoted out of the holder, the more the arm 21 of the guide 21 is pivoted into the holder. Hereby the control means and the stop 9 are released from each other, so that the stop can now be unobstructed further under the control means.

This also stops the displacement of the locking means and the lugs 15 and 16. Meanwhile, the end 22 of the locking means arm 24 reaches the end of the guide surface 4 of the cam 5 and is now supported by a horizontal surface 25 of this cam.

When the door 18 is now closed in the direction of arrow 19, the stop 9 passes unobstructed under the retracting pad 7 and the guide member 2, and then encounters an abutment surface 26 at the end 6 of the locking member arm 24 which projects into the path of movement. Due to the kinetic energy of the door, the locking means 1 and through the lugs 15 and 16 are also guided the guide means 2 in the direction of the arrow 26 until the free end of the locking arm 27 of the locking member abuts the stop means 3. This stops the door's displacement without the door being completely closed.

To cushion the shock, there is a brake assembly 8, a shock absorber or the like, and at the end of the braking or damping section the door comes to a complete stop, 10 and thus also stops the holding effect of the stop 9 on the locking means 1 which, under the influence of the spring 11, is pivoted to FIG. 3. A prerequisite for swinging the arms of the locking member upwardly may be some back suspension of the door in the direction shown by arrow 28. This 15 will depend on the design of the stop 9 and the end surface 26 of the locking member arm 24. After the locking member is swung up, the door 18 can be shifted from the safety position determined by the apparatus according to the invention to the fully closed position, without any special influence required. -20 the appliance or other parts.

The brake assembly 8 consists of a plurality of elastically compressible brake discs 29 of rubber, resin or other resilient material which e.g. alternating with spacers 30 are arranged on an arm 31 extending from the stop member 3, the free end 32 of which is folded like a hook and abuts against the end surface of an impact cam 33, thereby holding the parts of the brake unit together. Instead of by means of the arm 31, the centering can be done immediately by means of the rail-shaped holder 17. It is advantageous, therefore, that the spacer 50 pieces 30 are formed with recesses in which the material of the elastic brake slats 29 can be received during braking.

At the stop of the door, the impact cam 53 transfers its moving energy to the frame 34.

The stop 9 consists of two separate parts, one of which

Claims (2)

Part 35 may, as needed, be screwed shorter or further into the second part 36, and its position secured in known manner, e.g. by means of a locking screw 37. The stop cam 33, the control cam 5 and the return cam 7 are each secured to the frame by means of at least one screw, 38, 39, 40, and at the same time these screws fasten the holder 17 with associated parts. An apparatus for interrupting the closing movement of a sliding door or similar member in a frame or frame 10. a distance from the frame or frame for preventing clamping between it and the door, which apparatus is provided with a locking member slidable in the direction of movement of the door and is adapted to cooperate with the closing movement of the door with an abutment surface of an abutment 15 and with a stop means, characterized in that the locking means (1) is mounted pivotally limited and that it is spring and / or weight-loaded in its non-locking position, that there is a limited pivotally mounted guide member (2) which is spring and / or weight-loaded 20 in its non-locking position and is provided with an impact surface (20) for cooperating with an additional impact surface on the impact (9), as well as is displaceable together with the locking means while maintaining a constant distance therefrom, that there is between the locking means and the guide means a guide box (5) with a guide surface (4) for locking means. and that there is a return cam (7) located in the opening direction of the door in front of the guide means with a guide surface (6) for the guide member. Apparatus according to claim 1, characterized in that the stop means (3) is designed as a brake (8) or shock absorber.