EP1148200B1 - Flap holder - Google Patents

Abstract

The flap-holder has a flap-side arm -part (8) joined to the flap (6) so that it swivels on an articulated axle (10), and has a main body-side arm part (9) joined to a fitting fixed to the main furniture body so that it swivels on a swivel axle (12).The ends of the arms facing away from the flap or furniture body are swivel-joined on an articulated axle 14). Between the body-side arm part and the fitting (13) is a first control 15); and between the body-side part and the flap-side arm is a second control (16). The controls each contain a pressure piece (17,18) and a cam (19,20) held against each other by a spring arrangement (21,22).

Description

The invention relates to a flap holder for a vertically pivotable arranged on a furniture body, can be opened by swinging flap for holding the flap in its open position by means of a spring arrangement, see for example US 2,903,149 A.

Especially in tall cabinets the top cabinet is often closed by a hinged in the region of its upper edge on the furniture body flap, which is pivoted to open upwards. Such a flap is regularly associated with a flap holder, which should hold the flap in its open position. In this case, conventional flap holder include a lever linkage and a spring arrangement, so that the lever linkage runs over a dead center. Closing the flap, attacks after crossing the dead center not only their weight but also the spring force, which can lead to a violent slamming the flap.

In this context, the present invention seeks to provide a valve holder principle with which one In a relatively simple manner can be obtained according to the respective requirements movement behavior of the flap.

This object is achieved in that the flap holder has a pivotable about a hinge axis with the flap connectable flap-side arm and pivotable about a pivot axis with a furniture body to be fastened fitting part associated body side arm, the flap or the furniture body opposite end portions to a Joint axis are pivotally connected to each other, so that a toggle-like arrangement is formed, and that between the body-side arm part and the fitting part, a first control device and between the body side arm part and the flap side arm part, a second control device is effective, wherein the two control devices each have a pressure piece and a Contain control cam, which are held by an independent of the other control device spring device against each other, so that the flap holder from the pivoting angle of the flap on the folding e applied force composed of two each occurring at one of the control components force components.

When pivoting the flap, the body-side arm part pivots about the body-side pivot axis. In addition, the two arm parts pivot on the hinge axis relative to each other. These two pivoting movements are in terms of power by the two control devices and thereby in connection with the spring devices determined by the course of the cams. Since the two control devices are independent of each other, one obtains two force components which, depending on the course of the control cams in certain pivoting ranges, may be opposite to one another, or may also increase or be zero.

Conveniently, when the valve holder is mounted, the holding force exerted on the flap in the open position and the holding force exerted in the closed position are determined at least essentially by a respective other of the two control devices. In this case, each of the two cams have a facing to the facing pivot axis or hinge axis at least substantially concentric curve portion, wherein in the closed position and in the open position in each case in one of the control means, the pressure piece rests on the concentric curve area.

Furthermore, it is expedient that the two control devices are effective when opening and closing the flap successively with an intersecting region arranged therebetween.

In a valve holder designed according to the invention, the control cams can readily be shaped such that such a damped closing behavior results that no slamming must be feared. It can even be achieved that the flap remains in intermediate positions over a large angular range.

In a preferred embodiment it is provided that in at least one of the spring devices, the spring force adjustable is. In this way, you can adjust the flap holder without other changes to the personal needs of the user or to the flap weight.

Fig. 1

einen in einem Schrank montierten Klappenhalter im vertikalen Längsschnitt, wobei die Klappe geschlossen ist, und

Fig. 2

die Anordnung nach Fig. 1 bei geöffneter Klappe.

An embodiment of the invention will now be explained with reference to the drawing. Show it:

Fig. 1

a flap holder mounted in a cabinet in vertical longitudinal section with the flap closed, and

Fig. 2

the arrangement of FIG. 1 with the door open.

From the drawing, the upper front portion of a cabinet is shown in vertical cross section, so that of the cabinet body 1, one of the side walls 2, the top wall forming the cabinet ceiling 3 and the top tray 4 below limiting shelf 5 can be seen. The front side of the compartment 4 is associated with a flap 6 which is mounted pivotably on the body 1 between a vertical closure position (FIG. 1) closing the compartment 4 and a swung-up open position (FIG. 2) for accessing the cabinet compartment 4. The swivel fitting over which the upper end portion of the flap 6 in the closed position is pivotally connected to the body 1 has been omitted in the drawing. He is of conventional design and interested in the present context otherwise not further.

The flap 6 is also connected via the pivot fitting still a flap holder 7 with the cabinet body 1 and thereby with the side wall 2. With the help of the flap holder 7, the flap 6 is held in its open position shown in Fig. 2.

The flap holder 7 has a flap-side arm part 8 and a body-side arm part 9, which form a toggle-like arrangement. In this case, the respective end of the flap-side arm part 8 is pivotally connected to the flap 6 about a pivot axis 10. For this purpose, the pivot axis 10 is seated on a mounting shoe 11, which is screwed to the flap 6, in the embodiment of the in the closed position the inside of the cabinet facing flap inside. The flap-side arm portion 8 opposite end of the body-side arm portion 9, however, is pivotally connected about a pivot axis 12 with a flap holder 7 associated fitting 13, which is fixed to the furniture body, in the embodiment of the side wall 2, attached. The mutually facing end regions of the two arm parts 8, 9 are pivotally connected to each other via a hinge axis 14, so that the two arm parts 8, 9 are arranged in a V-like manner relative to each other. In the closed position according to FIG. 1, the two arm parts 8, 9 are at a comparatively small acute angle to one another, with both arm parts, starting from the flap 6 or the fitting part 13, extending upward. In the open position shown in FIG. 2, the two arm parts are 8.9 pivoted away from each other and take almost an extended position.

The flap holder 7 includes two control means 15,16, of which the first control means 15 between the body-side arm part 9 and the fitting part 13 and the second control means 16 between the body-side arm part 9 and the flap-side arm member 8 is effective. The two control devices 15,16 each include a pressure piece 17 and 18 and a control cam 19 and 20, which are held by a spring means 21 and 22 against each other. The two spring devices 21,22 are independent of each other.

In the exemplary embodiment, the two pressure pieces 17, 18 are arranged on the body-side arm part 9. Accordingly, the pressure member 17 associated control cam 19 on the body side fitting part 13 and the pressure member 18 associated control cam 20 on the flap side arm 8. In principle, in one and / or other control device, the arrangement could be reversed so that the control curve on the body side arm sitting.

The spring device 21 or 22 acts on the respective pressure piece 17 or 18 to the facing cam 19 and 20 out.

The body-side arm part 9 has a tubular shape. The two pressure pieces 17, 18 are accommodated in the interior of this tubular body-side arm part 9. Of course, embodiments are conceivable in which only one of the plungers is located in the arm part inside.

Each arranged on the body side arm portion 9 pressure piece 17 and 18 has a longitudinally displaceable on the arm part 9 guided bearing section 23 and 24 and a rotatably mounted on the bearing section 23 and 24, at the respective cam 19 and 20 applied pressure roller 25 and 26 respectively , which rolls when pivoting the flap 6 on the control cam 19 and 20 respectively.

The two spring devices 21, 22 are each a compression spring device which is supported on the one hand on a spring stop 27 or 28 arranged in the interior of the body-side arm part 9 and on the other hand on the relevant pressure piece 17 or 18. In this case, the two compression spring means 21,22 are formed by coil springs. In the illustrated case, the spring means 22 are two mutually interposed coil springs. This variant would also be possible with the spring device 21, which is formed in the embodiment only by a coil spring. Conversely, could be provided in the spring device 22 also only a coil spring.

The spring stops 27 and 28 are located in the longitudinal direction of the body side arm part 9 between the two pressure pieces 17,18 and extend from the associated spring stop in arm longitudinal direction to the relevant pressure piece. The illustrated plungers have on their bearing part 23 and 24, one of the spring means 21 and 22 facing bearing recess 29 and 30, in which the respective spring means 21 and 22 is immersed and at the bottom of the bearing recess 29 and 30 is supported.

In at least one of the spring devices, in the exemplary embodiment of the spring device 22, the spring force is adjustable so that the force exerted by the flap holder 7 on the flap 6 and their dependence on the tilt angle can be changed. This is achieved in the embodiment in that the adjustable spring device 22 associated spring stop 28 can be adjusted in the longitudinal direction of the body side arm 9. For this purpose, the adjustable spring stop 28 is formed by the head 31 of a threaded bolt 32, which is in threaded engagement with a threaded nut part 33. The threaded bolt 32 and the threaded nut member 33 are located within the tubular arm portion 9. The threaded bolt 32 is rotationally fixed, but adjustable in arm longitudinal direction, arranged, for example by 9 not shown longitudinal notches are formed in the wall of the flap side arm portion, with the polygonal , in particular hexagonal executed threaded bolt head 31 cooperate. The threaded nut part 33, however, is rotatable, but arranged fixed in arm longitudinal direction. The threaded nut member 33 is accessible from the outside, for example by having a plurality of circumferentially spaced plug recesses 34 and the wall of the arm member 9 having a circumferentially extending transverse slot 35 through which an actuating tool, e.g. an Allen key, in the currently accessible plug recess 34 can be inserted.

The tubular body-side arm part 9 is longitudinally slotted in the region of each pressure piece 17 or 18 arranged in it, wherein Further, the respective longitudinal slot 36 and 37 extends from the Armteilende a little way in arm longitudinal direction.Fern the relevant cam 19 and 20 is formed by a control disk 38 and 39, which are arranged on the body side fitting 13 and the flap side arm 8 is and 36 and 37 engages through the respective longitudinal slot, so that the control cam 19 and 20 bears against the pressure roller 25 and 26 respectively. When pivoting the body-side arm member 9 about the pivot axis 12, the pressure roller 25 of the control cam 19 pivots along. Accordingly, during the pivoting of the two arm parts 8,9 move about the hinge axis 14, the control cam 20 and the pressure roller 26 past each other, wherein the control cam 20 pivots through the flap-side arm portion 8, the control cam 19.

The bearing section 23 or 24 of the pressure element 17 or 18 has two ends directed towards the Armteilende bearing leg, which extend on both sides of the pressure roller 25 and 26 and where the respective pressure roller bearing axis 40 and 41 is mounted. Of the two bearing legs is, since it is in Figs. 1 and 2 are each a longitudinal section, only one visible (bearing legs 42 and 43). In each pressure piece 17 and 18, the two bearing legs 42 and 43 include a guide slot 44 and 45, which is plugged into the tubular flap-side arm portion 9 on both sides of the control disk 38 and 39 on the pivot axis 12 and the hinge axis 14.

When moving the flap 6, the body-side arm part 9 pivots relative to the fitting part 13 and pivot the two arm parts 8 and 9 relative to each other. At both points, the pivoting takes place depending on the course of the control cam 19 or 20 against or with the assistance of force components occurring at the control device 15 and 16 respectively. For these two force components, the force exerted by the flap holder 7 in dependence on the pivot angle of the flap 6 on this force, which can thus be adapted by appropriate shaping of the cams 19,20 to the respective application.

In the exemplary embodiment, the holding force exerted on the flap 6 in the open position according to FIG. 2 is determined at least essentially by the second control device 16, which acts between the two arm parts 8, 9. The pressure roller 26 is here at one of the hinge axis 14 closest point of the control cam 20, from which a distance from the hinge axis 14 curve portion 46 extends to a point 47 at which the curve portion 46 in a hinge axis 14 substantially concentric curve area 48 passes. At the same time, the pressure roller 25 abuts a curve area 49, which is essentially concentric with the pivot axis 12, of the control cam 19 of the first control device 15.

When closing the flap 6, the pressure roller 26 first runs on the curve area 46 which is remote from the hinge axis 14.

For this purpose, a certain actuation force must be exerted on the flap 6. In the course of this movement, in the first control device 15, the pressure roller 25 comes to a strong, in the embodiment substantially radially, from the pivot axis 12 removing portion 50 of the control cam 19 so that the closing movement of the flap 6 opposes a corresponding force component, the together with the occurring at the control cam 20 of the second control device 16 force components results in a so-called damped closing movement.

Shortly before closing the pressure roller 25 of the first control device 15 reaches a vertex 51 of the control cam 19, so that subsequently a clamping force is exerted on the flap 6. In this phase, the pressure roller 26 of the second control device 16 moves along the arcuately extending about the hinge axis 14 curve portion 48 of the second control device 16th

When you open the flap 6, the corresponding conditions arise in the reverse direction.

Thus, the holding force exerted on the flap 6 in the open position and the closing force exerted in the closed position are determined at least substantially by one of the two control devices 15, 16, respectively.

It can be seen that the two control devices 15,16 become effective when opened and closed successively with an overlapping region arranged therebetween.

In the closed position take the two plungers 17,18, as is apparent from a comparison of Figures 1 and 2, with respect to the open position of the pivot axis 12 and the hinge axis 14 more remote position, so that the two spring means 21,22 stronger are curious.

When opening the flap 6, the flap weight is substantially compensated, so that the opening movement, so to speak, runs smoothly.

The reason for the use of two separate spring devices 21, 22 is, on the one hand, that the initial forces on both control cams 19, 20 are the same and the decrease in force is only caused by the travel of the respectively activated control curve. On the other hand, a spring force adjustment can be realized, as is the case in the exemplary embodiment of the spring device 22.

Claims (12)

1. Flap-holder, for a flap which is fitted so as to swivel vertically on a furniture body part and opened by swivelling upwards, designed to hold the flap in its open position by means of a spring assembly, characterised in that the flap-holder (7) has a flap-side arm element (8) which is able to swivel around a hinge axis (10) and can be connected to the flap (6), and a body-side arm element (9) which may be swivelled around a swivel axis (12) and is connected to a fitting (13) to be fastened to the furniture body (1), with the end sections of these elements opposite the flap (6) and the furniture body (1) respectively being connected to one another pivotably around a pivot axis (14) so as to form a toggle-joint-like assembly, and that a first control device (15) is effective between the body-side arm element (9) and the fitting (13), and a second control device (16) is effective between the body-side arm element (9) and the flap-side arm element (8), wherein each of the two control devices (15, 16) contain a clamping pad (17 and 18 respectively) and a control cam (19 and 20 respectively), which are held against one another by a spring device (21 and 22 respectively) which in each case is independent of the other control device, so that the force exerted by the flap-holder (7) on the flap (6), depending on the angle of swivel of the flap (6), is comprised of two force components, each occurring at one of the control devices (15, 16).
2. Flap-holder according to claim 1 characterised in that, with the flap-holder installed, the holding-open force exerted on the flap (6) in the open position, and the holding-closed force exerted in the closed position, are at least substantially determined in each case by a different one of the two control devices (15, 16).
3. Flap-holder according to claim 2, characterised in that each of the two control cams (19, 20) has a cam section (49 or 48) which is at least substantially concentric to the facing swivel axis (12) or pivot axis (14), wherein in the closed position and in the open position in each case, the clamping pad is in contact with the concentric cam section at one of the control devices (15, 16).
4. Flap-holder according to any of claims 1 to 3 characterised in that, in opening and closing of the flap (6), the two control devices (15, 16) are effective one after the other, with an overlap zone between them.
5. Flap-holder according to any of claims 1 to 4, characterised in that at least one of the clamping pads (17, 18) is located on the body-side arm element (9).
6. Flap-holder according to claim 5, characterised in that the body-side arm element (9) has a tubular shape and that at least one clamping pad (17, 18) is located inside the body-side arm element (9).
7. Flap-holder according to claim 6, characterised in that the tubular body-side arm element (9) is longitudinally slotted in the area of each clamping pad (17, 18) mounted in it, and the respectively assigned control cam (19 or 20) is formed by a control disc (38 or 39) reaching through the longitudinal slot (36 or 37) and fitted to the body-side fitting (13) or the flap-side arm element (8).
8. Flap-holder according to claim 6 or 7 characterised in that, in the case of each control device (15 or 16) with a clamping pad (17 or 18) mounted inside the body-side arm element (9), the spring device (21 or 22) is a compression spring device supported at one end on a spring stop (27 or 28) in the interior of the arm element, and at the other end on the relevant clamping pad (17 or 18).
9. Flap-holder according to any of claims 1 to 8, characterised in that the spring force of at least one (22) of the spring devices is adjustable.
10. Flap-holder according to claims 8 and 9 characterised in that, in the case of each spring device with adjustable spring force, the spring stop (28) is adjustable in the axial direction of the body-side arm element (9).
11. Flap-holder according to claim 10, characterised in that the adjustable spring stop (28) is formed by the head (31) of a threaded bolt (32), which is in threaded engagement with a threaded nut element (33) which may be turned from the outside.
12. Flap-holder according to any of claims 5 to 11, characterised in that at least one clamping pad (17, 18) provided on the body-side arm element (9) has a bearing section (23 or 24) guided so as to slide longitudinally on the arm element (9), and a pressure roller (25 or 26) mounted rotatably on the bearing section and fitting up against the respective control cam (19 or 20).

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