ES2342559T3 - AMORTIGUATION ELEMENT. - Google Patents

Abstract

Disclosed is a damping element (1), especially for movable furniture parts, comprising a linear damper which is provided with a cylinder (12) and a piston that is movable in the cylinder (12). The piston encompasses a piston rod (15) which (15) is coupled thereto and is biased in a position that protrudes from the cylinder (12). The length of the stroke of the piston rod (15) relative to the cylinder (12) is adjustable such that the damping path can be adapted to the respective furniture part.

Description

Damping element.

The present invention relates to an element damping, especially for mobile furniture components, with a linear shock absorber that features a cylinder and a piston mobile in the cylinder with a piston rod attached to it, the piston rod being pre-tensioned in a position protruding from the cylinder.

From DE 202 05 076 a known linear damper for mobile furniture components, in which a cylinder and a piston rod are provided, which is located in the cylinder For a damping process, the cylinder it constitutes a pusher in which the piston rod against the force of a spring. Certainly a Similar linear shock absorber can dampen the movement of closing of mobile furniture components, such as cabinet doors or drawers, but the linear shock absorber is specially designed for a certain type of furniture in which the pusher and the cylinder, formed adapted to the needs, they form a unit.

In document DE 202 00 798, a damping device for mobile furniture components, in which a linear shock absorber with a cylinder and with a piston pre-tensioned by a spring. Shock absorber linear can be moved in a housing by means of a screw, of so that the contact point for damping the furniture component. However, the maximum stroke of the linear damper, remains constant here, in case of a Linear shock absorber offset, only used for the damping, another zone of adjustment of the race. When adjust the mounting position of the linear damper, certainly you can use, for example, a small adjustment path of the linear shock absorber, but then there is the problem that in the initial zone of the damping movement, there are forces minors by the spring and the shock absorber, and cannot be use the greatest forces that occur at the end of the race maximum through the spring of the linear shock absorber. In this form of adjustment, the damping element is always used starting from the fully extended position, to a position partially removed Only in the case of adjusted travel maximum, the terminal position of the shock absorber is also reached. In addition, there is the disadvantage that the forces that appear, in special also the forces caused by damping dynamic, act directly on the adjustment device, what which can lead to permanent wear to premature wear. In addition, a large constructive length is produced, because of the adjustment device that is arranged in the direction of shock absorber movement.

Document GB 861 627 makes a cap public elastic for a door, in which a pusher is guided in a Case. In case of a closing movement of the door, the pusher is compressed into the housing so as to avoid A door slam. The pusher movement out It is limited by a stop plate. To adjust the path of the race, the stop plate has to be moved away, to fix a Ring split into a groove in the pusher.

It is therefore the mission of the present invention to create a damping element that can be adapted for different employment purposes in terms of damping forces and, for Therefore, it can be used for different furniture. This is due to always reach a defined terminal position of the shock absorber linear. In addition, a decoupling of the damping forces that arise from a device adjustment.

This mission is solved with an element of damping with the characteristic notes of the claim one.

According to the invention, the length of the stroke The piston rod can be adjusted relative to the cylinder. In this way the damping element can be used universally for different mobile furniture components, being able to adapt the damping path to the component corresponding furniture, not adjusting the linear shock absorber, but by modifying the output path of the piston rod. Then lightweight furniture components only need so generally a smaller cushioning path than the most components heavy furniture and, in addition, the type may also be relevant of the furniture component for the necessary travel of damping In this sense you can adapt one and the same damping element for different purposes. At the end of damping path, it is effective here in each case pre-tension spring force, regardless of how long the stroke of the piston rod stroke is adjusted with relation to the cylinder. Naturally it is also possible yet additionally, adjust the spring pre-tension force to to be able to carry out further adaptation.

According to a preferred conditioning of the invention, adjustment means are provided to introduce the piston rod in the cylinder, against the force of a spring. The adjustment means can set a stop here, to limit the output movement of the piston rod, of the cylinder. From This mode can limit the stroke of the piston rod with relation to the cylinder, and the path of damping accordingly. Regardless of how long be the damping path, it is used together with the forces damping dynamics, also the spring pre-tension, to avoid a slam of a mobile furniture component, by example of a door. In addition, the adjustment means can be decouple the forces that appear due to the shock absorber dynamic.

       \ newpage
    

The damping element has preferably a housing that can be mounted on a component of the cabinet, from which a pusher coupled with the rod protrudes of the piston or with the cylinder. Then the cylinder and the stem of the pistons are housed protected in the housing, and only the pusher protrudes from the housing, so that a component mobile construction, such as the piece of a hinge or a component furniture movable, can be supported on the pusher, to introduce It is in the housing. Of course it is also possible to leave a movable component of the furniture directly on the cylinder or on the piston rod of the linear shock absorber.

The adjustment means may comprise a guide curve by which a limiting element can be adjusted to the race in relation to the housing. So, through the media of adjustment, a regulatory element can continuously graduate the length of the race, in each case as long as the buffer travel. For this the adjustment means can be configured as an adjustment disc on which it is configured a spirally curved guide, in which a pivot of a limiting element

For a compact structure, the element limiter can present a wing that through a slit of the housing, fits into a housing in the pusher. So with Only few building components can form a damping element. The pusher can act here in combination with a hinge element on which a revolving door of furniture. In addition, it is possible to use the element of cushioning also in drawers or other mobile components of the piece of furniture.

The adjustment means can also be formed by a slide that can be locked, or by a lever that can be interlocked, with which the path of damping In addition, a stop can also be provided that can be set in different positions.

The invention is explained in detail to then, with several examples of realization, with Reference to the attached drawings. Shows:

Figure 1 A perspective view of an element of damping according to the invention, in assembled state.

Figures 2, 3 Two views of the element of damping of figure 1, in different positions.

Figures 4, 5, 6 and 7 Various views of the element of damping of figure 1, in different positions.

Figure 8 An exploded representation of the damping element of figure 1.

Figure 9 An exploded representation of another exemplary embodiment of a damping element.

Figure 10 A perspective cut view of a damping element according to another embodiment.

Figure 11 A perspective view of another exemplary embodiment of a damping element, and

Figure 12 A travel diagram - force of a damping element according to the invention.

A damping element 1 is used for damping of the movement of mobile furniture components, and it comprises a plate 2 that can be fixed by screws to a 3 revolving door. A housing 4 is mounted on the plate 2 of which other components are arranged protected construction of the damping element 1. Door 3 is fastened to a fixed body 5 of the furniture, on which a hinge piece 6 to which plate 2 is attached, I will move by means of an articulated mechanism 7. In body 5 of the furniture is mounted another plate 8 to which the hinge piece 6 is fixed, It can be done using screws 9, a position adjustment of support of the door 3 with respect to the body 5 of the furniture.

At the end of the closing movement, it must be dampen the movement of the door 3 relative to the body 5 of the furniture, to prevent a door slam 3. For this, a damping element 1 is provided with a pusher 10 which stumble on the hinge piece 6, being able to compose the pusher 10 of a plastic, metal or other material.

As shown in Figure 2, pusher 10 protrudes from the housing 4 and, with the door 3 open, does not rest more in the 6 piece of hinge. The pusher 10 is coupled with a cylinder 12, for example, by means of a clamping joint or interlocking that is part of a linear shock absorber. In addition, it is provided with an adjustment disc 11, to be able to adjust the travel of damping

Figure 3 shows the position of the door 3, in which the hinge piece 6 rests on the pusher 10. In this position the hinge piece 6 presses against the pusher 10, and insert this into the housing 4, acting the pusher 10 on the cylinder 12 of the linear damper which produces dynamic and static damping forces.

Figure 4 shows in detail the damping element 1, being provided in the housing 4, next to the cylinder, a piston rod 15 that can be inserted in cylinder 12. Cylinder 12 and piston rod 15 can be configured as described in document DE 202 05 076. Other forms of linear dampers can also be used, pushing out of the cylinder 12, the piston rod 15 by a dock To cushion the movement elastically dynamic, hydraulic damping elements can be used or tires The damping forces presented are introduce, unlike the current state of the art, not in a adjustment device, but directly on the housing 4 which correspondingly it can be mounted fixed.

Cylinder 12 and piston rod 15 are arranged in an interior space 16 of the housing 4, predetermining the distance of the cylinder 12 to a front face of the housing 4, the length el, to which the cylinder is movable 12. Up to this length it can be inserted by pressing the pusher 10 in the housing 4.

The length \ ell is predetermined, in addition, by means of adjustment comprising a limiting element 13 which fits into a housing 14 on pusher 10. Then by means of the spring inside the cylinder 12, the pusher 10 together with cylinder 12, it cannot protrude more than housing 4. The limiter element 13 is coupled with the adjustment disc 11 being able to limit the maximum damping path, turning the adjustment disc 11.

Figure 5 shows a position in which the piston rod 15 protrudes more from the cylinder 12, than in the Figure 4. This produces a damping path L longer, for which the limiting element 13 would move correspondingly to the right, to lengthen the path of damping

Figure 6 shows a position in which the door 3 of the furniture is closed, and the hinge piece 6 presses against the pusher 10. The cylinder 12 now rests on the housing 4, and the piston rod 15 is disposed within the cylinder. In this way it becomes visible between the limiting element 13 and a pusher wall 10, the maximum length H of the stroke that cylinder 12 and pusher 10 can be made. If element 13 limiter would have moved somewhat more to the right, would be increased correspondingly the race.

Figure 7 shows a situation of assembly of the damping element 1, in which the door of the furniture is also closed, and the hinge piece 6 is supported by the pusher 10. However, in this case the cylinder 12 is not arranged directly next to the housing 4, but arranged to a distance b to the housing 4. In this way the maximum stroke length of the damping element and, in special, the last part of the route is not used damping, in which the spring develops the greatest force in the inside of the cylinder. Such a mounting situation can be offer, in particular, for lighter furniture components, in those who do not necessarily need the maximum force of spring for braking movement. Also in this situation of assembly occurs a maximum stroke H between element 13 limiter and a pusher wall 10.

The damping element according to the invention it is shown in detail in figure 8, in the representation in exploded view The housing 4 comprises a cylindrical housing for the cylinder 12 and the piston rod 15 protruding. Under the housing 4 is provided with an adjustment disc 11, in which emptied a guide 17 spiral curve. The adjustment disc 11 can rotate around an axis that fits into an opening 18 in the adjustment disc 11.

The limiting element 13 is formed by a U-shaped arch 20, on whose sides wings 21 are configured that protrude upwards. These wings 21 pass through slits 22 in the housing 4 and then are guided in the housings 14 in the pusher 10. In the U-shaped arch 20, in the face turned towards the adjustment disk 11, a pivot 19 is also configured which is fits in the guide 17 spiral curve. In this way, by the rotation of the adjustment disc 11 can be adjusted the position of the limiter element 13 in the direction of the race travel of the cylinder 12. In this way it is possible to reduce the travel of piston rod 15 outlet while position introduced to the maximum is defined by the support of the cylinder 12 in the housing 4.

Figures 9 to 11 show shapes modified realization of a damping element. The same constructive components are provided here with the Same reference signs.

In the exemplary embodiment shown in the Figure 9, as a limiting element a lever 13 'is provided which is rotatably supported on the housing, the lever being arranged 13 ', rotating around a pivot 30. The lever 13' comprises a handle part 33 protruding from the housing and can be turn. In addition, a slit 31 is emptied into the housing curve in which a pivot of the lever 13 'is fitted, being additionally inserted the pivot still in a hole 14 'in the pusher 10. The pivot thus forms a kind of stop to be able to adjust the maximum output movement of the element damping In addition, the lever 13 'is still provided retention elements that act in combination with the corresponding housings 34 in the housing, so that the lever 13 'can be locked in different positions.

In the exemplary embodiment shown in the Figure 10 of a damping element, an element is provided  13 '' limiter that is configured as a sliding slide. The slide can be moved inside a 14 '' hole of the pusher 10, the slide 13 '' being previously tensioned out by a dock Thus, a projection 40 in the form of strip is pressed into retaining teeth 41, so that the slide 13 '' can be pressed down, and then Move to the desired position. Then it is interlocked and then you can limit the maximum stroke of a cylinder 12 of a linear shock absorber

Figure 11 shows another form of realization of a damping element in which the limitation of the course of the race, it is carried out by a stop 13 '' ' in which a pivot 52 is configured that can be plugged into adjacent openings 50, 51, and then remain fixed there. He pivot 52 is further fitted into a 14 '' 'recess in the pusher 10, so that through the stop 13 '' 'the maximum stroke movement of a cylinder 12 and the pusher 10.

Figure 12 shows a diagram - force of the damping element according to the invention. With the increasing travel, the force of the spring inside the linear shock absorber, so that in the end there is a force higher than at the beginning of the damping movement. Here via the device 13, 13 ', 13' ', 13' '' limiter can be adjust the maximum stroke H of pusher 10 and cylinder 12, or be the distance of the points x_ {2} and x_ {3}. Other possible career path v between points x_ {1} and x_ {2}, it is not used in damping element 1. However, in the closed position of the door, the spring force has a value maximum at position x_ {3}, which is independent of the length of the career path.

If desired, naturally also can move the damping element, so that it only use the lower force portion of the spring for damping movement, as represented in the Figure 7. Both the spring force, as well as the travel of damping, can be adjusted, with the damping element according to the invention, optimally to the corresponding component of the piece of furniture. In addition, the pusher 10 can be changed, and can be use longer and shorter pushers to match due to a modified mounting situation.

In the examples shown of embodiment, the piston rod 15 rests each time on housing 4. Naturally it is also possible to arrange the cylinder 12 in the housing, and attach the piston rod with the pusher 10. In addition, with the corresponding constructive form, pusher 10, it can be formed directly by the cylinder 12 or by the rod 15 of the piston, to need the least construction components possible for the damping element.

In the depicted embodiment example, the damping element is used in a hinge element, the damping element having been fixed to the door. Of course it is also possible to mount the damping element in the body of the furniture. In addition, the damping element is can be used in other furniture, for example, in extraction guides and other furniture fittings.

In addition, different mechanics have been shown for maximum stroke adjustment. Also here you can still use other mechanics to limit the maximum travel of the career, without abandoning the basic idea of the invention. Here the cylinder 12 can also be placed in contact directly on a mobile component of the furniture, for example, when dispense with pusher 10.

In the depicted embodiments, the damping element is integrated in the furniture hardware, thus it is mounted on the furniture together with the hardware of the furniture. Of course it is also possible to mount the damping element separate from the furniture hardware and, therefore, retrofit furniture existing. In addition, the damping element can be attached removable with the hardware of a piece of furniture, to mount it in case necessary, and known elements of retention or tightening, threaded joints or other mechanics.

Claims (9)

1. Damping element (1), especially for mobile furniture components, with a housing (4) that can be mounted on a piece of furniture, with a linear damper that has a cylinder (12) and a mobile piston in the cylinder (12) with a piston rod (15) coupled to it, and with a pusher (10) protruding from the housing (4) and is coupled with the piston rod (15) or with the cylinder (12), the rod (15) of the piston of the linear shock absorber being pre-tensioned in a position that protrudes from the cylinder (12), with adjustment means (11, 13, 14; 13 ';13'';13'') being provided a stop to limit the output movement of the pusher (10) and, therefore, of the piston rod (15), of the cylinder (12), the length of the piston rod stroke (15) being adjusted relative to the cylinder (12), characterized in that the adjustment means (11, 13, 14; 13 ';13'';13''') have a handle part protruding from the housing (4). 2. Damping element according to claim 1, characterized in that by means of the adjustment means (11, 13, 14; 13 ';13'';13''), the piston rod (15) can be inserted into the cylinder (12) against the force of a spring. 3. Damping element according to claim 1 or 2, characterized in that the adjustment means comprise a curved guide (17) by means of which a limiter element (13) can be adjusted for the stroke, relative to the housing (4). 4. Damping element according to any one of claims 1 to 3, characterized in that the adjustment means have an adjustment element (11) for continuous adjustment of the length of the stroke. 5. A damping element according to any one of claims 1 to 4, characterized in that the adjustment means comprise an adjustment disc (11) in which a spirally shaped guide (17) is configured, in which a pivot is fitted. (19) of a limiting element (13). 6. Damping element according to any one of claims 1 to 5, characterized in that the limiter element (13) has a wing (21) which, through a slit (22) of the housing (4), fits into a housing ( 14) on the pusher (10). 7. Damping element according to any of claims 1 to 6, characterized in that the pusher (10) acts in combination with a hinge element in which the revolving door (3) of a piece of furniture is fixed. 8. Damping element according to any one of claims 1 to 7, characterized in that the adjustment means are formed by a slide (13 '') that can be locked, or by a lever (13 ') that can be locked. 9. Damping element according to any one of claims 1 to 7, characterized in that the adjustment means are formed by a stop (13 '') that can be fixed in different positions.