JP3149773U - Device for buffering the opening and closing movement of sliding shutters, especially for furniture - Google Patents

Abstract

A shock absorber capable of buffering the last part of the opening / closing movement of a shutter is provided. In order to support and slide individual shutters, buffer boxes are mounted on a central bracket and brackets disposed on both ends of the buffer box. The box 20 is provided with two opposing braking devices of the rotating type, whose toothed hubs directly engage with a rack fixed to the box 20 itself, and each brake device is guided by a respective slide guided by the box 20 itself. Coupled to the moving device, coupled to one end by an elastic device, the opposite end being coupled to the other sliding device, both sliding devices corresponding to the last section of the movement to be buffered Hooks 48 and 58 are provided to activate or stop the action to be performed. [Selection] Figure 4

Description

  The present invention provides some sliding doors or shutters, particularly for furniture or sliding partitions, to cushion the movement of these shutters near the arrival point at the end of the gap or opening where the shutter opens and closes. Relates to the design of the device, which is preferably attached to one of the support brackets.

  The use of sliding doors or glass partitions, for example for furniture, display windows, built-in wardrobes, or sliding bulkheads, is a large space to allow opening and closing compared to a hinge system. It is particularly advantageous by allowing the design of significantly larger open / close surfaces without the need for

  According to well-known techniques, some sliding doors or glass partitions are generally supported by a pair of brackets or carriages secured to their upper edges, precisely because of their size. Is done. Each carriage has a corresponding sliding wheel whose race is coupled to the track. The track is mounted on the top surface of the furniture item or on the cavity to be closed, while the striker or the lower guide, which is essentially parallel to the upper track, usually stays always in a vertical position when sliding Using the myriad structural solutions proposed and exemplified by, for example, 1978 European Patent No. 0000156, 1990 US Patent No. 5,247,763, or 1992 European Patent No. 0567262, Press the side facing the shutter itself.

  This same well-known technique usually requires a pair of cavities arranged side by side so as to be closed by a pair of shutters, which in turn correspond to corresponding parallel tracks and guides arranged side by side. When sliding over, allows one of the two cavities to be fully opened and overlays the open shutter over the closed cavity shutter while both shutters close the corresponding cavities The shutters are mounted on two parallel planes anyway, and one of their central sides is ideally aligned, or more often the other shutter Slightly overlaps the edge of the.

  All these well-known solutions usually open and close the cavity by pushing and pulling the shutter along its track with a physical force proportional to the size of the shutter itself, and thus the weight. it can.

  To prevent excessive force, pushing the shutter hard against an opening or closing door stop, the same well-known technique envisions the installation of a “stopper” or catch, where the “stopper” or catch is , Having a narrow seat or section in which a latch for the moving shutter can be put, and the moving shutter decelerates its propulsion by friction before reaching its door stop Can do.

  However, this method can cause the shutter to become a “stopper” if it wears out over time and the thin section of the catch cannot hold the shutter latch, especially when the shutter is pushed and pulled with excessive force. Prone to climb, collide with door stops, move back and partially block open cavities, later with manual adjustment of the position of the shutter itself, as well as frequent damage due to vibration from the impacted parts And have been shown to be less effective.

  More recent techniques aim to overcome this drawback and, when the shutter approaches full opening or closing, cushion the last part of the movement of the shutter and take advantage of the absorbing capacity of the elastic compression device, Is brought into contact with the edge of the moving shutter in order to use its reaction force that is gradually released into the chamber of a special piston connected to it, and the piston is, for example, on each of the two sides of the shutter itself. Pneumatic pistons as proposed by EP 1348828 and EP 1426535.

  However, each of the known buffering solutions described above conspicuously limits their effectiveness and reduces their use to some simple examples of furniture and sliding partitions that are not intended for frequent use. Have other problems and disadvantages.

  The first disadvantage is that, as is well known, the pistons have a limited life span due to their secureness to hold their seats, and therefore are considered legitimate, for example for furniture doors. The need for a predictably planned maintenance program.

  A second drawback of the coupled elastic device and piston is that furniture that is opened and closed tends to deform due to uncoordinated collisions and thrusting, and in any case deteriorate much more often than expected. Or to further affect the limited life of the shutter item.

  Another disadvantage of this recent technology is that, as is well known, a normal traction spring absorbs and transmits thrust proportionally to its expansion or extension rather than evenly, resulting in various gaps. Increasing the force required to push the shutter in the open / closed position.

Finally, all the well-known forms of buffering using springs and pistons, as described above, only allow attachment of at most two shutters when the device is mounted directly on the track, i.e. Prevent possible translation of the third shutter shutter shock absorber.
European Patent No. 0000156 US Pat. No. 5,247,763 European Patent No. 0567262 European Patent No. 1348828 EP 1426535

  The main task of this innovation is that it does not require the installation of one device per bracket, or in any case, the installation of the same shutter opening device and closing device. To make it possible to build a single device on an item, such as furniture, for finally buffering movement when opening and closing the moving shutter.

  In this mission, another preferred objective of this innovation is that its mass, variability in required thrust or traction force, and maximum stretch of the elastic device, without the use of cumbersome jamming systems to limit movement Independently, the action of the braking device can always be balanced, using appropriate elastic reaction to adjust the final movement of the shutter.

  Another preferred objective of this innovation is to be able to build a shock absorber that is adjustable, adaptable and interchangeable with each type of sliding shutter.

  Another preferred objective of this innovation is the long-term effectiveness and consistency of the operation of the device to automatically dampen the thrust or pulling force and avoid any damage that currently occurs each time the shutter collides with its door stop. It is to guarantee.

  Another preferred and important objective of this innovation is that it does not require planned or frequent maintenance due to wear of current piston seals and the vulnerability of the seals to blow or crash due to excessive rushing. It is. A further preferred objective of this innovation is to allow the shock absorber to be placed on a furniture item or cavity with more than two shutters without creating a hindrance to the corresponding proper opening and closing operation. is there.

  These and other objects are achieved with a shock absorber according to the features of claim 1. Preferred embodiments are the subject matter of the dependent claims.

  In particular to open and close the sliding shutter, which is a sliding shutter for furniture, which is attached to each shutter or sliding partition as a single item, in order to be able to cushion the last part of the opening and closing movement of the shutter A preferred shock absorber is basically made of a shock absorber box, which should be mounted with, or even on, a respective bracket for supporting and sliding the individual shutters. Comprises two well-known viscous fluid rotation type opposing braking devices, whose toothed hubs engage directly with a rack fixed to the box itself, each braking device being guided by the box itself. It is connected to a sliding device and is connected to one end by an elastic device, and the opposite end is connected to the other sliding device. Both the sliding device, characterized in that it comprises a hook for actuating or stopping the action of the corresponding last leg of travel is buffered.

  In particular, such a device is preferably constructed in which the shock absorber box is constructed with a constructed box base having a longitudinal lower slit on the lower surface, one of its flank being preferred by the edge of the cover or the guide wall. The lower slit is used to hook and unhook the internal buffer portion of the box across several strikers mounted near the track for translating one or more shutters. It is characterized in that it can be connected to an external working part. Preferably, the constructed box or base has a longitudinal cavity which, in cooperation with a cover defining the longitudinal cavity of the base, houses a pair of sliding devices, Longitudinal translation can be guided. Each sliding device has a viscous fluid rotation type braking device, whose toothed pinion directly meshes with the teeth of the rack that are longitudinally coupled to the box. Such a device is preferred when the rack is integral with the cover.

  In such devices, the same sliding device can be coupled together by a traction operated elastic device that is used to bring the sliding devices closer together beyond the braking force of those devices, , Preferably made of a double helical traction spring, especially made of elastic material, one spring with a head hook or eyelet and the other spring coaxial with that inside the spring is two sliding It has a head hook or eyelet that can be hooked onto the device.

  The lower slit of the box structure can have a pair of lateral slots and / or a housing attached near its two ends.

  Preferably, the cover has small side walls or edges that are slightly shorter than the length of the lower slit in the box base.

  In particular, the sliding devices are preferably connected to their corresponding hooks, the hooks being outside the box and mounted in a suitable position near the track for sliding and translating the shutter. By contacting the striker with the hooks, the pulling action of the elastic device and the braking action of the braking device can be activated.

  Following the external or manual opening and closing of such a shutter, the hooks can be accommodated in their corresponding slots or housings of the lower slit, the hooks being the same striker acting on their contact housings. , The hooks rotate on the hinges and remain engaged with them until they are released from their slots or housings along with their corresponding sliding devices, and the traction recoil and braking device of the elastic device To produce the desired damping.

  Following such an external or manual opening and closing of the shutter, the hook bends are hooked onto the end of the small side wall of the cover, and the new contacts with the same striker acting on their contact housing cause the hooks to Until the curved part at the end of the small side wall is released together with their corresponding sliding device, the elastic device and the braking element of the corresponding device The desired traction reaction is used to produce the desired damping.

  When the safety hook is coupled to the hook, at the same time, the safety hook is coupled to the other hook, the safety hook comprising a curved wall adjacent to the inclined wall, and the first stage of installation of the device, Alternatively, it is preferred that the bent wall can be hooked to the striker at a later stage when it is newly attached to the sliding shutter.

  In particular, preferably the buffer box can be mounted at any position on the top surface of the shutter, as well as upside down with respect to the solution described above and consequently the position of the striker can be adjusted.

  These and other objectives are in fact achieved using, in particular, a device that defines a single box design for buffering the final movement of the shutter, which is used in both the opening and closing stages, and this The box can be mounted, for example, on one of the support of the shutter itself and one of the longitudinal sliding brackets, which has two opposing braking devices of the particularly well known viscous fluid rotation type. The corresponding toothed hub directly meshes with the teeth of the longitudinal rack integral with this box, each braking device is coupled to the respective sliding device, and the sliding device is guided longitudinally by the box itself , Coupled to its corresponding elastic device operated by traction, the opposite end of the elastic device is coupled to the other sliding device, and finally this sliding device On the opening that is fixed and closed on the roof of the cavity near the guide rail, the hooks actuating and stopping the corresponding braking section by contact with the corresponding striker Are installed near the fully open and closed positions of the shutter.

  In particular, the main feature of this innovation is to design a single box to cushion the final movement of the shutter so that it can be used when opening and closing the shutter, For example, it can be attached to one of the shutter support and longitudinal sliding bracket, or to two independent fixed brackets on the top surface of the shutter. The box preferably has two opposing braking devices of the well-known viscous fluid rotation type, whose corresponding toothed hub directly meshes with the teeth of a single longitudinal rack integral with the box itself. , Each braking device is coupled to a respective sliding device, the sliding device is guided in the longitudinal direction by the box itself and is coupled to its corresponding elastic device, the elastic device is coupled to the other sliding device Each sliding device also has a hook, which is configured by contact with a fixed pin configured near the fully open and closed position of the shutter where the gap is closed. Activating and deactivating the corresponding buffer section.

  A better understanding of the proposed solution and supporting the achievement of the indicated purpose is explained in more detail below and illustrated with the help of drawings, in the form of structures which are purely exemplary and non-limiting To do.

  It should be understood that all figures show the same details with the same reference numbers.

  According to the structural solution shown for purposes of illustration in the various figures, an improved device for buffering the opening and closing movement of the sliding shutter is shown in FIGS. 3 and 4 as shown schematically. Made basically with a shock absorber box 20 attached to one of the brackets 1 or 2 fixed to the upper edge of the shutter 3, the smoothness of which corresponds to the corresponding idler sliding wheel 4 moving along the same track 6 and The track 6 is integral with a base plate 12 mounted on the upper surface 7 of the cavity 8 that is to be opened and closed using the shutter 3.

  Again, according to the illustrated solution, this buffer box 20, which is also integral from one end of the bracket 1, is fixed to the edge of the sliding shutter 3 by the second bracket 9, while The same FIGS. 3 to 4 show that a second track 6 ′ integral with the base 12 is also attached for buffering movement of another sliding door.

  According to the prior art, the sliding wheels 4 and 5 are respectively provided with corresponding brackets 1 and 2 by interposing corresponding plates 10 and 11 for adjusting the height and verticality of each shutter 3, respectively. On the other hand, the base plate 12 has tracks 6 and 6 'protruding therefrom, and is fixed to the upper surface 7 by means of screws 16, for example, and a simple auxiliary wall 13 that hides the tracks 6 and 6' from view. And an auxiliary wall portion 14 that acts as a rib for reinforcing the base portion 12.

  Of course, the support brackets 1-2 and the adjustment plates 10, 11 on the sliding wheels 4, 5 are already commercially available, but the innovation of the solution of the invention brought about by the box 20 and its accessories described below. It can be designed in a variety of ways, including not shapes. This box 20 acts on both sides of the shutter 3 when the cavity 8 is opened and closed, and can buffer the final movement section.

  Referring to FIG. 5, the shock absorber box 20 is made of a box-shaped base (constructed box base) 21 and a cover 30, and the base 21 and the cover 30 are coupled to each other by an elastic traction device 60. Enclose and guide the sliding devices 40 and 50 that perform. Each of these sliding devices 40, 50 has viscous fluid rotary braking devices 70 ′, 70 ″ acting against the traction of the elastic device 60.

  More specifically, the box-shaped base 21 has a special internal cavity 22, which includes a longitudinal opening lightening slit 23 and a lower opening slit 24, and the lower opening slit 24 is a pair of Recessed lateral slots 25 and 26 are provided. The longitudinal opening lightening slit 23 is formed in the side wall of the box 20. The lower opening slit 24 is configured in the bottom wall of the box 20. Preferably, a pair of recessed slots 25, 26 continue into the base 21 of the box 20 from or below the lower opening slit 24.

  In the central part of the longitudinal cavity 22 of the box 20, at least one striker 28 integral with the constructed box base 21 is arranged to limit the movement of the opposing sliding devices 40 and 50 in the direction towards each other. Yes.

  The lower opening slit 24 of the above-described box 20 is closed on one side by the overlapping cover 30 and its guide wall 31 by a fixing tool such as a self-tapping screw passing through the slot 32 or the opening passing through the wall 31. .

  The cover 30 also has a small side wall 33 that is slightly shorter than the length of the lower opening slit 24, while having a bar or longitudinal edge 35 on its opposite side and rack 36 teeth on its inside. In particular, as can be seen from FIG. 6, the small side wall 33 extends downwardly from the guide wall 31 in the mounting position, while the guide wall 31 has a bar or longitudinal edge 35 on its opposite upper side. Have. FIG. 6 emphasizes that the inside of the cover 30 has a bar 35 that is secured to the same cover with the toothed lower edge of the rack 36 using, for example, screws.

  As already specifically mentioned, in the seat formed by the cavity 22 of the box 20 there is a pair of sliding devices 40 and 50 which slide freely, which slide devices 40 and 50 have a corresponding viscosity. Having fluid braking devices 70 ′ and 70 ″, the viscous fluid braking devices 70 ′ and 70 ″ being connected to each other by means of an elastic device 60, their corresponding devices for hooking and releasing the buffering action Have These sliding devices 40, 50 and their components are shown together as 40, 50. More specifically, as shown in FIG. 7, the sliding device 40 has an oval housing 41 that houses the viscous fluid braking device 70 'along with its toothed pinion 71'.

  The same sliding device 40 also has a pair of prongs 42, 43, which are shaped to form a cavity 44 connected to a transverse slit 45, with its ends near the prongs 42. Is completed by the presence of a through hole 46 having a diameter that is selectively narrower than its initial portion. In particular, the pair of prongs 42, 43 has a “C” -like shape with a transverse slit 45, which is horizontally in the direction of the elliptical housing 41 from the center of the vertical wall of “C”. Continue into the wall. The through hole 46 extends in the vertical direction and penetrates the transverse slit 45.

  Similarly, as shown in FIG. 8, the sliding device 50 also has an elliptical cavity 51 that accommodates the viscous fluid braking device 70 ′ with its toothed pinion 71 ″, and a pair of prongs 52, 53 are also included. Prongs 52, 53 are shaped to form a cavity 54, connected to a transverse slit 55 and completed by the presence of a through hole 56, which is preferably narrower than its initial portion Its end having a diameter is in the vicinity of the prong 52.

  The respective through holes 46, 56 of the sliding device 40 and the sliding device 50 are the respective received ends 47a and 57a of the hinges 47 and 57, preferably under pressure, with corresponding hooks 48 and 58, respectively. Are coupled to the same sliding devices 40 and 50, respectively.

  If the sliding devices 40 and 50 are installed in the cavity 22 of the box 20, the hooks 48 and 58 must be external to collide with the striker pins 80 that control their operation, but the collar 48a, 58 a is coupled to the same hook 48, 58, acts as a spacer facing the corresponding sliding device 40, 50, and acts as a guide along the lower opening slit 24 of the box 20. As shown in FIGS. 7, 8, and 10, the hooks 48, 58 are generally cylindrical in shape and have axially drilled collars 48a, 58a, parallel through holes 48b, 58b, and a branched housing. Curved portions 48c and 58c facing 48d and 58d are provided.

  Safety precautions for the operation of the hooks 48, 58 are also shown in FIGS. 7, 8, and 10, but are described in more detail below.

  As already mentioned, the cavities formed by the respective cavities 44 and 54 of the sliding devices 40 and 50 are responsible for the braking action of the two braking devices 70 'and 70' ', as shown in FIGS. Used to accommodate the end of the elastic traction device 60 that joins the same two opposing sliding devices 40 and 50 together. This means that the elastic device 60 is made innovatively, in particular with double concentric helical springs 61, 64 made of an elastic material, so that the required actuation force when tension is applied. Indicates that there is no possibility of excessive change. This is because the actuating force is weak or in any case the sum of the two recoils that does not exceed the braking action of the devices 70 'and 70' '.

  In particular, the outer spring 61 has small hole shaped ends 62 and 63, while the inner spring 64 has small hole shaped ends 65 and 66. The second eyelet 65 of the inner spring 64 is optionally inside and concentric with the first eyelet 62 of the outer spring 61, and the first eyelet 66 of the inner spring 64 is the first eyelet 66 of the outer spring 61. It is inside the second small hole 63 and is concentric with it. Or this is reversed. After the pair of small spring holes 63 and 66 are accommodated in the slit 45 of the sliding device 40, the other pair of small spring holes 62 and 65 of the traction springs 61 and 64 are inserted into the slit of the other sliding device 50. By being housed in 55, the hinges 47 and 57 can then be inserted into the holes 46 and 56 to secure the small holes 62, 63, 65, 66 in the corresponding slits 45, 55. As emphasized in FIGS. 5 and 9, the hinges 47 and 57 insert hooks 48 and 58, particularly from the lower outside of the box 20, in order to achieve an elasticized connection of the same sliding devices 40 and 50. Are then inserted into the holes 46 and 56 to allow their minimum and maximum traction inside the cavity 22 of the box 20. That is, the hooks 48 and 58 are rotatable in a plane perpendicular to the hinges 47 and 57.

  Of course, before coupling the two sliding devices 40 and 50 with the elastic device 60, a braking device 70 'is arranged in the housing 41 of one sliding device 40 and the other braking device 70 " The other sliding device 50 is accommodated in a cavity or an elliptical housing 51.

  The cover 30 arranged on the box-shaped base 21 already equipped with its sliding devices 40 and 50 and already equipped with the other components described so far is the teeth of the braking devices 70 'and 70' '. It enables the meshing of the teeth of the hub formed as the pinions 71 ′ and 71 ″ with the teeth of the rack 36 of the bar or edge 35 that extends in particular in the lateral direction.

  For example, by acting on the hook 48, the sliding device 40 is pulled toward the left edge of the housing 22 and the meshing of the toothed pinion 71 'from the rack 36 without substantially stressing the elastic device 60. The sliding device 50 can be pulled until it strikes the striker 28. By continuing to pull the sliding device 40 by hand, the sliding device 40 can be pulled to the left edge of the box 20 beyond the force of the tension springs 61, 64, and the tension springs 61, 64 can be pulled. When stopped, it tends to recoil and move the sliding device 40 itself towards the center of the housing 22 and is subject to the resistance of the braking device 70 ′, ie the braking device 70 ′ buffers the recoil of the elastic material 60. Similarly, the elastic device 60 is buffered by acting on the sliding device 50 after pulling the sliding device 50 toward the right edge of the cavity 22 itself.

  The box 20 that is basically assembled with the components described so far is attached to the shutter 3 using, for example, brackets 1 and 9 as shown in FIG. It is pushed to translate along the track 6 until one collides with one of the strikers 80, 80 ′. The strikers 80, 80 ′ are arranged at the start and end of a movement section for the parallel movement of the shutter 3 itself for opening or closing the cavity 8, and the start or end of the section for buffering this movement. Determine the part.

  From the above, considering that the elastic device 60 never causes the hooks 48 and 58 to collide with the strikers 80 and 80 ′ even if the tension of the elastic device 60 exceeds the limit, the step of attaching the shock absorber 20 to the shutter 3 Thus, it can be inferred that the corresponding strikers 80 and 80 'are not automatically caught.

  In order to overcome this aspect and to ensure the highest operational safety of the device in question, a first safety hook 90 is attached to one sliding device 40 and the second safety A hook 100 is attached to the other sliding device 50.

  Referring to FIG. 7, the hook 90 is pivoted with a hinge 91 to the hook 48 and has a folded portion 90a with an outer slide or riser 90b. Another hinge 92 is housed in the slot 90c of the safety hook 90 and has an opposite end 92a that slides along a slot 93a made on the bottom of the guide block 93. Wrapped by an elastic helix 94, the arm 94a collides with the cylindrical part 90d of the safety hook 90. In particular, the hinge 91 extends through the cylindrical part 90d of the safety hook 90. The hinges 91, 92 have their axes extending vertically and parallel to each other.

  Similarly, and referring to FIG. 8, the other hook 100 is pivoted with a hinge 101 to a hole 58b in the other hook 58 and has a folded portion 100a with an outer sliding portion or riser 100b. The other hinge 102 is received in the slot 100 c of the safety hook 100 and has an opposite end 102 a, which slides along the slot 103 a made on the bottom of the guide block 103. Wrapped by the elastic helix 104, the arm 104a collides with the cylindrical part 100d of the safety hook 100.

  The safety hooks 90 and 100 are slid along the lower slit 24 of the box 20 as highlighted in FIG. 10 with their guide blocks 93 and 103 and with the general hooks 48 and 58.

  With the translation of the box 20 following the translation of the shutter 3, where the box 20 is secured together, for example by the bracket 1, the hooks 48 and 58 are released from the strikers 80, 80 'which remain fixed. The lateral slots 25 and 26 at the end of the lower opening slit 24 of the box 20 are pushed by the striker to rotate on the hook hinges 47, 57, translate in the hook housings 48d, 58d. The same FIG. 10 shows that it is housed in the cavity formed by.

  When these hooks 48, 58 are received in the corresponding slots 25, 26, the elastic device 60 remains tensioned but along a path for manually pulling the moving shutter 3. The elastic device 60 prevents them until the same hooks 48, 58 are forced to rotate on their hinges 47, 57 by their curved housings 48d, 58d that newly strike the striker 80 or 80 ′. I can't do it.

  The hooks 48 or 58 are released in the obstructing position in the recesses 25, 26 of the slit 24, and the elastic device 60 moves the corresponding sliding device 40 or 50 until it possibly hits the striker 28 of the box 20. There is a tendency to carry quickly to the center of the cavity 22. The braking devices 70 'and 70' 'on the sliding devices 40 and 50 counter this reaction of the elastic device 60, i.e. according to the proposed main purpose, the single device formed by the box 20 In order to achieve the desired buffering of the final movement for opening and closing of the shutter 3 on the cavity 8.

  The presence of the respective bends 48c and 58c of the hooks 48 and 58 allows a second simultaneous or alternating form of obstruction of the same hooks 48, 58 in their fully open position as in FIG. Indeed, together with the hook housings in the cavities 25 and 26 of the box 20, together with the rotation of these hooks 48, 58 caused by the passage of the hook branches 48d, 58d over the fixed striker 80, 80 ' Are also hooked to the end of the small side wall 33 of the cover 30 and their release is then caused by passing through the strikers 80, 80 ′ to which the curved housings 48d, 58d are fixed. Guaranteed by rotation of the same hooks 48,58.

  As described above, it is not automatic to hook the branch portions 48d, 58d on one or both fixed strikers 80, 80 'during initial installation or when the shutter 3 is forced to move. Therefore, as already described, safety hooks 90 and 100 are provided.

  While translating the shutter 3 towards the open / close end of the cavity 8, the inclined or raised ends formed by the risers 90b and 100b of the safety hooks 90 and 100, respectively, are strikers 80 and 80 '. , Forcibly lifted and rotated on their hinges 90d, 100d, the rotation being in the slits or slots 93a, 103a of the corresponding guide blocks 93, 103, as seen in FIG. Adjusted by the peg formed by the other hinge 92, 102 of the safety hook 90, 100.

  Their rotation is also coordinated by springs 94, 104 that have overcome the obstacles of the fixed strikers 80, 80 ', which lower the same safety hooks 90, 100 and bring the same strikers 80, 80' to their Slide them until they are housed in the bends 90a, 100a and the same hooks 48, 58 collide with the new striker 80, 80 'and are hooked on it to operate the buffering phase already described above normally. Together with the devices 40, 50 and their corresponding hooks 48, 58, they are pulled along the lower slit 24.

  Having thus described the main parts that make up the innovative device of the present invention for buffering the final movement of the shutter 3 when the cavity 8 is opened and closed, as well as the accessories to which the same device can be attached, The operation is summarized below with particular reference to FIGS. In these figures, to simplify the graphical representation, the tracks 6, 6 'and other parts that can be identified by FIGS. 3 and 4 are not shown.

  11 and 12 show the box 20 attached to the shutter 3 when the shutter 3 itself is in a normally closed position on the cavity 8 and at the same time the shutter 3 'is normally closed on the cavity 8'. Emphasize position and condition. In this closed position, the first hook 48 is stopped by a striker 80 that determines the stability of this state, and the second hook 58 still uses the elastic device 60 in a position to pull the hook 48 to a minimum. In the housing formed by the concave transverse slot 26 of the lower slit 24 and obstructed. When the shutter 3 begins to be pushed by hand to open the cavity 8, the box 20 also moves forward with the shutter 3 to which the box 20 is secured by brackets 1 and 9, so that the first sliding device 40 is moved. The traction of the elastic device 60 above and on its hook 48 is increased and the braking action of the device 70 ′ incorporated in the same sliding device 40 decelerates and delays the removal of the sliding device 40 from the striker 80. .

The high resilience of the springs 61 and 64, which allows the sum of their action to evenly distribute the reaction to manually pushing the shutter 3, is due to the specified braking force of the braking devices 70 'and 70''. Relatedly, the correct longitudinal position of the strikers 80 and 80 'along the track 6 for the idler wheels 4 and 5 for translating the shutter 3 is determined.
The strikers 80, 80 ′ are arranged in striker tracks configured parallel to the tracks 6, 6 ′ on the upper surface of the base plate 12.

  FIGS. 11-13 and 15 also show strikers 81, 81 ′ as well as strikers 80, 80 ′, on either side of the track 6 ′ for buffered translation of the shutter 3 ′. Must be understood. The track 6 'is supported by different brackets 1', 2 'and has another identical buffer box 20', but this was not considered necessary to show.

  As the manual pulling of the shutter 3 and the braking action of the braking device 70 ′ of the first sliding device 40 continue, the advancement of the box 20 accommodates the housing formed by the corresponding lateral slot 25 therein. The hook 48 remains engaged with the striker 80 until it is aligned with the remaining same hook 48 and rotated on its hinge 47 to release itself from the striker 80. As shown in FIG. 10 and FIGS. 13 and 14, in this situation, the initial buffering action on the open shutter 3 stops, but the action of pushing by hand towards the full opening of the cavity 8 continues and the hook 48 is housed in the cavity formed by the first lateral slot 25 and the other hook 58 is formed by the other second lateral slot 26 at the two ends of the lower slit 24. Housed in the opposite cavity, thus the elastic device 60 is continuously tensioned.

  The other hook 58, which continues along the direction of opening the shutter 3 and its buffer box 20, collides with the other striker 80 ′, embeds itself with the housing 58 d, is lifted from the recess or housing 26, and the cavity 8 FIG. 15 and FIG. 16 emphasize that the final buffering phase begins when the shutter 3 arrives at its fully open position above.

  In fact, the braking device 70 '' integrated with the sliding device 50 and the other second hook 58 is such that the other striker 80 'collides with the first hook 48 and remains captured in the housing 48d. Until the stability of the state of the fully open cavity 8 is ensured, the reaction of the elastic device 60 and any remaining manual thrust reaction acting on the shutter 3 are braked to slow down its final movement. ,adjust. Of course, when the cavity 8 is closed again, the shutter 3 is properly pulled to prevent the first hook 48 from being obstructed by the other striker 80 ′ and the desired cushioning action is achieved when closing the same cavity 8. To make it possible, it is sufficient to reverse the steps described so far.

  From all of this, it is clear that with a single buffer box the shutter movement can be adjusted both when opening and closing the cavity, depending on the main purpose proposed.

  By hooking the two highly elastic helical springs 61 and 64, the elastic device 60 does not require the attachment of an overly long box or a box with a disturbing device that distributes their forces, and the braking device 70 '. And 70 ″ can be evenly recoiled, consistent with yet another specific purpose.

  The shock absorber box 20 with the accessories mentioned above can be coupled to one of each type of bracket 1, 2, which must be mounted for sliding the shutter 3, or each type of bracket. As well as it can be attached to any bracket 9 of its own, in fact making itself attachable to a uniform and arbitrary sliding shutter, and in accordance with yet another specific purpose.

  The same shock absorber box 20 also eliminates all temporary or planned maintenance problems by using piston shock absorbers and meets another specific purpose.

  Of course, the structural solution described so far for exemplary purposes also has the possibility of first combining three or four shutters, suitably extending the tracks 6, 6 ', the top surface 7 or the base plate. Other strikers 80, 80 'suitably mounted on 12 can be designed in other structural forms, while at the same time the same improved device 20 can be used for multiple shutters or movable walls Again, it has the potential to be attached as a single item to buffer the final movement to open and close each movable shutter or wall as well.

  Similarly, the pair of helical springs 61, 64 is replaced with another elastic device 60 that can have a corresponding effect on the uniformity and consistency of the recoil to the braking action of the braking devices 70 'and 70' '. At the same time, the layout of the box 20 can be reversed by adjusting the position of the strikers 80, 80 ′ and 81, 81 ′.

  As already mentioned, the interference of the hooks 48 and 58 acting only on the side slot 25 and the housing 26 of the lower opening slit 24 can be ensured, while at the same time the curved portions 48c and 58c are made small in the cover 30. By hooking on the side wall 33 or the end of the corresponding wall at the base of the box 21, it is possible to guarantee the same disturbance and at the same time the strikers 80, 80 'and / or 81, 81' are opened and closed. Various configurations can be made on the upper surface 7 of the cavities 8, 8 '.

  It should be understood that these and other corresponding modifications and adjustments are in any way part of the creativity of the subject matter being protected.

Vertical sectional view showing the top surface of a furniture item with a section bar mounted thereon, along with a pair of tracks and associated accessories to support the sliding wheel and support bracket of two or more sliding shutters It is. On the sliding shutter, the device in question for opening and closing many cavities of the item of furniture should be mounted. The upper portion of the sliding shutter for the furniture item of FIG. 1 with a support bracket for the sliding wheel and an improved device in question for buffering the final opening and closing movement of the shutter itself. FIG. The top of the furniture item, and its sliding shutter as in FIGS. 1 and 2, with the bracket, sliding wheel, and shutter bumper already attached to one of the tracks on the top of the furniture item It is a vertical sectional view showing the upper part of. A portion of the top surface, one of the upper part of the shutter, an associated bracket with sliding and support wheels, and a shock absorber for the shutter itself to one of the brackets according to the assembly shown in FIG. It is the perspective view seen from the upper surface of the item of furniture which shows attachment. FIG. 5 is an exploded perspective view of the container box, showing the cover and other parts already forming the shock absorber in question, as shown in FIG. 4. FIG. 6 is a perspective view showing the same cover coupled to the box of FIG. 5 in an inverted position. FIG. 6 is a perspective view showing the sliding device and a hook for actuating its buffering stage arranged on the left side of the bottom of the box of FIG. 4 as assembled and shown in FIG. 5. FIG. 6 is a perspective view showing the sliding device and a hook for actuating its buffering stage arranged on the right side of the bottom of the box of FIG. 4 as assembled and shown in FIG. 5. FIG. 9 is a perspective view of the two left and right sliding devices as in FIGS. 7 and 8 and the actuation hooks separating the double elastic devices that couple the actuation hooks. The box of FIGS. 4 and 5 coupled to a part that catches on a fixed point to actuate the shock absorber in question and shown for illustrative purposes is shown from below with the actuating hooks spaced a maximum distance apart. FIG. FIG. 6 is a plan view showing an item of furniture having two cavities, both shutters surrounding the corresponding cavities, highlighting the position of the buffer box of FIG. 5 provided on one of the two shutters. It is an enlarged plan view which shows the operation state of the buffer box of FIG. FIG. 12 corresponds to the view of FIG. 11 but is a plan view with one shutter in its manual translation stage before final buffering to overcome the initial buffer stage and fully open its cavity. It is an enlarged plan view which shows the operation state of the buffer box of FIG. FIG. 6 is a plan view showing the same item of furniture of FIG. 11 with one shutter in its final buffered open stage, highlighting the position of its buffer box as in FIGS. 4 and 5. It is an enlarged plan view which shows the state of the buffer box of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bracket 2 Bracket 3 Shutter 3 'Shutter 6 Track 6' Track 9 Bracket 20 Buffer box 21 Box base 22 Longitudinal cavity 24 Longitudinal downward slit 25 Lateral slot 26 Housing 30 Cover 31 Edge 33 Edge 36 Rack 40 Slide Device 47 Hinge 48 Hook 48c Curved portion 48d Contact housing 50 Sliding device 57 Hinge 58 Hook 58c Curved portion 58d Contact housing 60 Elastic device 61 Helical traction spring 62 Small hole 63 Small hole 64 Helical traction spring 65 Small hole 66 Small hole 70 'Braking device 70''Brake device 80 striker 80' striker 81 striker 81 'striker 90 safety hook 90a wall 90b inclined wall 100 safety hook 100a wall 100b inclined wall

Claims (14)

  A sliding shutter (especially a sliding shutter (3) for furniture, attached to each shutter (3) or sliding partition as a single item in order to be able to cushion the last part of the opening and closing movement of the shutter. 3) A shocking device for opening and closing, which is basically manufactured by a buffer box (20), and the buffer box (20) supports and slides the individual shutters (3), respectively. The bracket (20) is equipped with two opposing braking devices (70 ', 70) of the rotary type. The toothed hub directly meshes with the rack (36) fixed to the box (20) itself, and each braking device (70 ′, 70 ″) is guided by the box (20) itself. Each sliding device (40 or 50) is coupled to one end by an elastic device (60) and the opposite end is coupled to the other sliding device (50 or 40), both Shock absorber, characterized in that it comprises hooks (48, 58) for activating or deactivating the corresponding action of the last section of the movement to be buffered.   A buffer box (20) is made of a constructed box base (21) with a longitudinal lower slit (24) on the lower surface, one of its flank being the edge or guide of the cover (30) Preferably closed by a wall (31), the lower slit (24) being mounted near a track (6, 6 ') for translating one or more of the shutters (3, 3'), Opposite of several strikers (80, 80 'and / or 81, 81'), the internal buffer part of the box (20) can be coupled with the external actuating part to hook and unscrew Device according to claim 1, characterized in that it can.   The constructed box or base (21) has a longitudinal cavity (22), the longitudinal cavity (22) being a boundary of the longitudinal cavity (22) of the constructed box base (21). 3. Coordinated with the cover (30) defining a pair, characterized in that it can accommodate a pair of sliding devices (40, 50) and guide their longitudinal parallel movement. Equipment.   Each sliding device (40, 50) has the viscous fluid rotating type braking device (70 ′, 70 ″), and its toothed pinion (71 ′, 71 ″) is connected to the box (20). Device according to claim 2 or 3, characterized in that it directly meshes with the teeth of a rack (36) longitudinally coupled to the rack.   Device according to claim 4, characterized in that the rack (36) is integral with the cover (30).   By means of the elastic device (60) operated by traction, which is used to bring the sliding devices (40, 50) closer to each other beyond the braking force of the devices (70 ′, 70 ″), the same sliding device is achieved. Device according to any one of the preceding claims, characterized in that the moving devices (40, 50) are coupled to one another.   Said elastic device (60) is made of a double helical traction spring (61, 64), in particular made of elastic material, one said spring (61) comprising a head hook or small hole (62, 63), The other spring inside and coaxial with the spring (64) is provided with a head hook or small hole (65, 66) that can be hooked onto the two sliding devices (40, 50). The apparatus according to claim 6.   The lower slit (24) of the constructed box base (21) has a pair of lateral slots (25) and / or a housing (26) mounted near its two ends. An apparatus according to claim 2 and any one of claims 1 or 3-7.   2 and claim 1, characterized in that the cover (30) has a small side wall or edge (33) slightly shorter than the lower slit (24) of the constructed box base (21). Or the apparatus as described in any one of 3 to 7.   The sliding devices (40, 50) are connected to their corresponding hooks (48, 58), the hooks are outside the box (20) and the hooks (48, 58) A striker (80, 80 'and / or 81, 81') mounted in a suitable position near the track (6, 6 ') for sliding and translating the shutter (3, 3') 10. The traction action of the elastic device (60) and the braking action of the braking device (70 ′, 70 ″) can be actuated by bringing them into contact with each other. The device according to item.   Following the external or manual opening and closing of such a shutter (3, 3 '), the hooks (48, 58) are connected to their corresponding slots or housings (25, 26) of the lower slit (24). The hooks (48, 58) can be accommodated in the new contact with the same striker (80, 80 'and / or 81, 81') acting on their contact housing (48d, 58d) Until the hooks rotate on the hinges (47, 57) and engage with their corresponding sliding devices (40, 50) until they are released from their slots or housings (25, 26). The traction reaction of the elastic device (60) and the braking element of the braking device (70 ', 70' ') can be used to produce the desired damping. Characterized Apparatus according to any one of claims 2 and claim 1 or 3 10.   Following such an external or manual opening and closing of the shutter (3, 3 '), the curved portions (48c, 58c) of the hooks (48, 58) are formed on the small side wall (33) of the cover (30). A new contact with the same striker (80, 80 ′ and / or 81, 81 ′) that hooks onto the end and acts on their contact housing (48d, 58d) causes the hooks to move to their hinges (47). , 57) and engage with it until it releases the bends (48c, 58c) with their corresponding sliding devices (40, 50) at the end of the small side wall (33). Characterized by using the traction reaction of the elastic device (60) and the braking element (70 ', 70' ') of the corresponding device to produce the desired damping. That, according to any one of claims 2 and 1 or 3 to 10,.   A safety hook (90) is coupled to the hook (48), and at the same time a safety hook (100) is coupled to the other hook (58), and the safety hook (90, 100) is connected to the inclined wall (90b, 100b) with a curved wall (90a, 100a) adjacent to the first stage of the installation of the device (20), or it can be said sliding shutter (3, 13. The striker (80, 80 ′ and / or 81, 81 ′) can be hooked at a later stage when newly attached to 3 ′). The device described in 1.   The buffer box (20) can be mounted at any position on the top surface of the shutter (3, 3 '), and can also be turned upside down compared to the solution described above, and consequently 14. Device according to any one of the preceding claims, characterized in that the position of the striker (80, 80 'and 81, 81') is adjusted.

Images