MXPA00009003A - Buffer device - Google Patents

Abstract

The buffer device (10) has a body (11) which can be fitted in a rail (4), a damping element (12) for cushioning, and a retaining spring (13) for retaining a running mechanism (6) which is guided in the rail (4) and is provided for carrying and guiding sliding wing elements (2). The at least approximately U-profile-shaped wing element of the buffer device (10), whose body is punched and bent from a metal element, has a first and a second wing (14;18), these wings being connected to each other by a central piece (20) whose tongue-shaped extension forms the retaining spring (13) serving to retain the running mechanism (6). The end pieces (17, 19, 26;17*, 19*) of the wings (14;18) are configured in such a manner that they are suitable for retaining the damping element (12). The buffer device (10) can be manufactured cost-effectively from a single metal plate and can be completed by a damping element (12). Since the retaining spring (13) is a component part of the body (11) of the buffer device (10), the device is highly stable.

Description

SHOCK ABSORBER DEVICE The invention relates to a damping device for rail-guided rolling mechanisms, in accordance with the preamble of patent claim 1. Folding or sliding room dividers as illustrated in Figure 8 (see also WO 96/21788 ) have at least one movable door element which is connected to at least one additional door element, generally by hinges, and is rotatably retained and guided on one side of a door in a top roller rail and a lower guide or roller rail . Figure 8 shows by way of example, a room opening that can be closed by a door 201 and three door elements 2, 2 ', 2"which are connected to each other by three hinges 209 in each case and can be bent to each other. As seen from the first door element 2, in the folding doors normally each door element 2, 2"... is suspended and guided in the bottom. The door elements 2 and 2"are therefore guided in the upper part in a running rail 4 and in the bottom in a guide groove 208. The door elements 2, 2 ', 2" can consequently be moved on the rail 4 while they are folded together. In order to guide the door elements 2, 2 ', 2", use is made for example of rails 4 and rolling mechanisms 6, as illustrated in Figure 6 and described in EP 733 766 Al. Rail 4, which it is fastened to a wall 206 by means of a fastener 211 and two screws 212, 213, it has a U-shaped profile open downwards with leg pieces 402 on said running surfaces 5 the wheels 8 of the rolling mechanism 6 advance. Figure 1 shows the rail 4 and the rolling mechanism 6 in the section AA illustrated in figure 9. A door element 2 is connected to the rolling mechanism 6 by an accessory structure comprising a holding means 3 and a connecting screw 1. The fastening means 3 is connected to the door element 2 by four screws.The connection screw, which is rotatably mounted in the fastening means 3, is screwed into a thread 9, which is provided in the body 7 of the mechanism of rolling 6. Figure 1 also shows a cushioning device known guide 100 having a body 101 connected to a damping element 102 and a retaining spring 103. The damping device 100 serves for controlled braking of the rolling mechanism 6 if the door element 2 is guided to the stop. This prevents the door element 2 from hitting the frame 202. The first door element 2 will often be retained in the stop or in the frame, such that the additional door elements 2 ', 2",. can be deployed in order to close the opening In order to retain the door element 2 or the corresponding rolling mechanism 6, the retaining spring 103 which has been connected to the body 101 of the damping device 100 is used. If the rolling mechanism 6 advances against the damping device 100 or the damping element 102, the retaining spring 103 is advanced in a cam 29 arranged in the form of a ramp in the body of the rolling mechanism 7, and engages by rapid actuation. after it as soon as the rolling mechanism 6 contacts against the damping element 102. The damping device 100 illustrated, comprises as described above, a plurality of parts and consequently leaves to produce and assemble with considerable expense in various operations. The connection between the retaining spring 103 and the body 101 is regularly subjected to the action of a considerable force, which is why phenomena of wear and poor operational capacity can occur. The door element. 2 is held firmly against a stop by the retaining spring 103 and can only be made to move in opposition by the action of a force. The holding force exerted by the retaining spring 103 may be too low or too high, depending on the application. Therefore, there is basically a relatively high maintenance expense in these known devices. In addition, the installation procedure is associated with considerable expense. This is due to the fact that in order to install the damping device, drill holes must be provided in the rail 4, through which drill hole screws which are connected to the damping device are guided. The present invention therefore is based on the object of providing a cost-effective and stable damping device, which can be simply adapted and allows a door element to be movably mounted to be cushioned while rolling and being retained in a Designated position. This object is achieved by the measures specified in claim 1. Advantageous refinements of the invention are specified in further claims. The damping device according to the invention which can be conveniently adapted with little expense, allows rolling mechanisms that are connected to movable door elements, to be accommodated while advancing and retaining in a designated position such that a connection at the level of the first door element to the frame it is ensured that it is maintained while the door elements are opened and closed. Only by a relatively powerful traction movement can the first door element be detached again from the master device and slide apart. The damping device can be manufactured cost effectively from a single metal plate and can be completed by a damping element. Since the preference retention cut is a part of the body component of the damping device, in addition to the production expense being reduced, the device is highly stable. In addition, the retaining spring can be produced separately from the body of the damping device, which body is formed according to the invention and subsequently can be connected to the body in a non-positive manner, preferably by rivets or screws. In a preferred refinement of the invention, the retaining spring can optionally be pre-tensioned, allowing the door with which the door element 2 is retained against the stop, to be adjusted. In the following, the invention will be explained in more detail with reference to a drawing in which: Figure 1 shows the known damping device 100 installed on a rail 4 where a rolling mechanism 6, which is connected to a door element 2, is guided, Figure 2 shows a side view of the buffer device 10 according to the invention, Figure 3 shows the damping device 10 according to Figure 2 from the front, Figure 4 shows the damping device 10 according to Figure 2 from the top, Figure 5 shows the damping device according to Figure 2 installed on a rail from the rear, Figure 6 shows the damper device 10 according to the invention, installed on a rail 4 where a rolling mechanism 6, which is connected to an element of door 2, is guided, Figure 7 shows the body 11 of the damper 10 according to the invention, this body is punched from a metal sheet and not yet bent, Figure 8 shows the collapsible walls that are described at the beginning and comprising a plurality of door elements 2, 21, 2", Figure 9 shows a rail 4 that fits on a wall and is suitable for housing the damping device 10 according to the invention, Figure 10 shows parts Wing end 17 *, 19 *, which are provided to retain the damping element 12 on both sides, and Figure 12 shows a damping device according to the invention whose retaining spring 131 is connected to the body 11 by a screw 33. Figure 8 shows the folding walls that are described at the beginning and comprise a plurality of pivotable and displaceable door elements 2, 2 ', 2 The door elements 2, 2 ', 2"are guided by rolling mechanisms 6 on the rails 4 as illustrated in Figure 9. The rail-shaped profile U 4, which is fastened to a wall 206 by means of a fastener 211 and two screws 212, 213, has a center piece of upper track 400 which is connected on both sides to the side plates 401, the ends of which have leg pieces 402 directed to each other and have running surfaces 5 on which the plates advance. wheels 8 of the rolling mechanism 6. Figures 1 and 6 show the rail 4 and the rolling mechanism 6 in the section AA illustrated in Figure 9. A door element 12 is connected to the rolling mechanism 6 by a coupling system which comprises a medium e secure and a connecting screw 1. The securing means 3 are fastened to the door element 2 by four screws. The connection screw 1, which is rotatably mounted in the securing means 3, is screwed into a thread 9 which is provided to the body 7 of the rolling mechanism 6. Figure 1 shows the shock absorbing device 100 described at the beginning. Figure 7 shows a damping device 10 according to the invention, which is installed on the rail 4 and is described in detail below. Figure 7 shows the body 11 of the damping device 10, this body is punched from sheet metal and has not yet been bent. The body 11 comprises a central part 20 which is connected on one side with a first wing 14 and on the other side with a second wing 18. After the folding procedures are completed, the extension of the central piece. 20 forms a retaining spring 13, which is preferably narrower in design than the center piece 20. Rounded areas 21 are preferably provided on both sides of the transition from the retaining spring 13 to the center piece 20, these areas secure that bending efforts are distributed, which avoids premature fatigue of the material in these points. Two threaded bore holes 131, 132 which serve to receive the fastening screws 31, 32 (see Figure 2), are further provided in the center piece 20.

An additional threaded drilled hole 130 is provided in the extension of the center piece 20, this drilled hole serves to receive an adjusting screw 30 by which the retaining spring 13 can be pre-tensioned. The end piece of the first wing 14 has a front piece 26 which is provided with an opening 16 arranged to receive the damping element 12. The first and second wings 14, 18 also have end pieces 17 and 19 respectively, which overlap each other after the bending procedures (see Figures 2 to 4). After the body 11 of the damping device, as illustrated in Figure 7, has been punched or punched from sheet metal, the bending processing can proceed as follows. First of all, the retaining spring 13 is bent taking into consideration the required pre-stress or pre-tension, and the shape of the body of the rolling mechanism 7 to be retained (see cam 29). Subsequently, the front piece 26, then the first wing 14 and then the second wing 18 are folded at least approximately perpendicular downwards over the fold or fold lines 15, 22 and 23, such that the end pieces 17 and 19 of the two wings 14 and 18 respectively overlap each other (see Figure 2). After that, the adjusting screw 30, the clamping screws 31, 32 and the damping element 12, are inserted. In order to reinforce the damping device 10, preferably the notches 25 illustrated in Figures 2 and 3 are further pressed in the body 11 and by means of which the two wings 14 and 18 and the center piece 20 are mutually stabilized. The notches 25 can be inserted, for example by means of a wedge which is guided with respect to the flange 14 or 18 and the central part 20 at an angle at 45 ° with respect to the body 11. The mutual stabilization of the flanges 14, 18 and of the piece central 20, prevents the center piece from buckling during installation of the fastening screws 31, 32, which would result, on the one hand in changing the setting of the retaining spring 13 and on the other hand, in that the damper device 10 is insufficiently held in the rail 4. Figure 3 shows the damper 10 from the front. The front piece 26, which serves to support the damping element 12, connects the two wings 14 and 18 in such a way that an impact on the front piece 26 is absorbed in each case by both wings 14 and 18. The adjusting screw 30, which serves to adjust the retaining spring 13, is also illustrated. Furthermore it can be seen from Figure 2 and Figure 3 that the two wings 14 and 18 are provided on the front side with recesses 141 and 181, respectively, which allow the damper device 10 to tilt forward after it has been introduced into the body. rail 4. This may be necessary if the running rail is secured with screws whose head height or head shape prevents the cushioning device 10 from being pushed through. When the race rail engages, the rolling mechanism 6 and the damper device 10 have already been inserted into the race track in the correct sequence. The recesses 141 and 181 then make it possible for the damping device 10 to be able to tilt at a constriction caused for example by the head of a clamping screw and slide past the corresponding point. Figure 4 shows the damping device from the top. The notches 25 which serve to reinforce the damping device 10 can be easily seen. Furthermore, it can be seen how the front piece 26 bends towards the second wing 18 and superimposes the latter on the end. As shown in Figure 10, it would also be possible to configure the end pieces 17 * and 19 * of the wings 14, 18 and to bend them together, so as to hold the cushion element 12 in the center. However, in this case, the quality of retention of the damping element 12 depends on the accuracy of the bending procedures and not on the quality of the bore hole 16 that can be accurately provided in the front piece 26. Figure 5 shows the shock absorber device that is installed on a rail 4 from the back. It can be seen from this that the two wings 14, 18 rest on the front pieces 402 of the rail 4 and respectively on the rolling surfaces 5 for the rollers 8. The screws 31, 32 are turned up far enough with respect to the rail center piece 400, such that the damper device is firmly clamped between the rail center piece 400 and the foot pieces 402. The center piece 20, which is pressed downward by the fastening screws 31, 32 is held by the notches 25. Figure 6 shows the damper device 10 according to the invention, installed on a rail 4, wherein a rolling mechanism 6, which is connected to a door element 2, is guided. The rolling mechanism 6 rests against the damping element 12 and is retained in the position shown by the retaining reinforcement 13, which is guided by the cam 29 provided in the body of the rolling mechanism 7. In such a way that the mechanism of 6 can be detached again from the retaining spring 13, a pulling force has to be applied by which the retaining spring 13 again rises on the cam 29. In order to adjust the force with which the rolling mechanism 6 it is retained against its stop, the retaining spring 13 can be pretensioned as required. For this purpose, a threaded drilling hole 130 is provided in the extension of the center piece 20, this drilled hole serves to receive an adjusting screw 30 which is rotated in a sufficient amount with respect to the center piece until the spring retention 13 is pressed downward in a sufficiently large proportion. Of course, the damping device 10 according to the invention can be advantageously employed with different types of slide mechanisms and rails. In a simpler refinement, the adjusting screw 30 can be omitted. In principle, another. means of installation in the rail 4 can also be selected, for example the wings 14 and / or 18 can be screwed directly to the rail 4. Figure 11 shows a buffer device according to the invention whose retaining spring 131 is connected in a non-positive manner to the body 11 manufactured according to the invention. The connection can, as illustrated in Figure 11, be carried out by a screw 33 also by a rivet or additional connection means.

This measure is convenient, particularly if a particular steel spring which is not suitable for the production of the body 11, is requested for the production of the retaining spring 131. The rotation of the adjusting screw 30 with respect to the rail centerpiece 400 causes the cushioning device 10 to be additionally retained within the rail 4 and is held against displacement when a door element 2, 2 ', 2"is cushioned.In this arrangement, the use of one of the fastening screws 31, 32 may be omitted under some circumstances.

Claims (8)

1. CLAIMS 1. - A damping device with a body that can be adapted to a rail, a cushioning element for cushioning, and a retention spring for a sliding mechanism, which is guided on the rail and allows to transport and guide sliding wing elements, wherein the U-shaped body of approximately at least the cushioning device, this body is punched and bent from a metal element, has a first and a second wing, these wings are connected to each other by a central part which is or can be connected in a retaining spring that serves to retain the slide mechanism, and wherein the end pieces of the wings are provided to retain the damping element.
2. 2. - The damping device according to claim 1, characterized in that the central part has a tongue-shaped extension that constitutes the retaining spring that serves to retain the slide mechanism.
3. 3. The damping device according to claim 1 or 2, characterized in that the damping element is retained between those end pieces of the wings that are folded together, or wherein the first wing has a front piece that bends towards the second wing and is provided with an opening that serves to receive the damping element.
4. 4. The damping device according to claim 1, 2 or 3, characterized in that threaded bores threaded for fastening screws, are provided in the central part, where the body can be articulated on a rail in the form of a U-profile, having a central part of the upper rail connected on both sides to side plates whose ends have leg pieces directed to each other, in which case the two wings can be placed on leg pieces and the fastening screws are rotatable with respect to the central part of the leg. rail.
5. 5. The damping device according to claim 4, characterized in that a threaded drilled hole for an adjusting screw is provided in the center piece or its extension, this adjusting screw is rotatable with respect to the rail centerpiece in order to to adjust a prestressing for the retaining spring.
6. 6. The compliance damping device in any of the preceding claims, characterized in that notches are printed on the body, these notches serves to strengthen the damping device.
7. 7. The damping device according to any of the preceding claims, characterized in that in front of the lower side, the two wings are provided with recesses that allow the damper device to be introduced into the rail for inclination.
8. 8. The damping device according to any of the preceding claims, characterized in that said end pieces of the two wings that are folded together mutually overlap.