Holding device for a front panel of a drawer
10973323 · 2021-04-13
Assignee
Inventors
Cpc classification
A47B2088/954
HUMAN NECESSITIES
International classification
Abstract
A securing device (1) for securing a front panel of a drawer to a drawer frame, having a holding element (2) for securing to the front panel and a closing element (3) for securing to the drawer frame. A spring (44) is operatively connected to the closure (50). The closure (50) is implemented for exposing a holding region of the holding element (2) in an open rotational position of the closure (50), and for blocking the holding region in a closed position of the closure (50). A transmission element (60) is hinged to the closure by a rotating/sliding connection on the closure side spaced apart from the rotary axis of the closure. A rotating/sliding connection on the opener side having a first bearing element (64) is disposed on the transmission element (60) opposite the rotating/sliding connection on the closure side. The rotating/sliding connection on the opener side produces a connection to a displaceably supported opener (70). The rotating/sliding connection on the opener side comprises a first and a second control curve (92, 93) in which the first bearing element (64) is guided, and the two control curves (92, 93) intersect. The transmission element (60) is preferably implemented having a plurality of parts and comprises a plurality of lever arms (60.1, 60.2). The transmission element (60) is particularly preferably implemented as a toggle lever.
Claims
1. A securing device for securing a front panel of a drawer to a drawer frame, the securing device comprising: a holding element configured to be secured to the front panel, the holding element including a holding region; and a closing element configured to be secured to the drawer frame, the closing element including: a support; a closure including a holding segment, the closure being rotatably supported about an axis of rotation on the support, the closure being configured to expose the holding region of the holding element in an open rotational position of the closure, and to block the holding region in a closed rotational position of the closure; a spring operatively connected to the closure; and a transmission element joined to the closure by a first rotating and sliding connection spaced from the axis of rotation of the closure; an opener displaceably connected to the support; and a second rotating and sliding connection joining the opener to the transmission element, the second rotating and sliding connection including a first control curve and a second control curve intersecting the first control curve, and a first bearing element guided in the first and second control curves.
2. The securing device of claim 1, wherein: the first control curve is disposed on the support; and the second control curve is disposed on the opener.
3. The securing device of claim 1, wherein: at least one of the control curves runs on a curved path.
4. The securing device of claim 1, wherein: the first bearing element is connected to the transmission element.
5. The securing device of claim 1, wherein: the spring acts on the first bearing element transverse to an alignment of the first control curve; and the spring pushes or pulls the first bearing element into a first end position of the first control curve when the closure is closed and into an opposite second end position of the first control curve when the closure is opened.
6. The securing device of claim 1, wherein: the first control curve is curved opposite an acting spring force of the spring.
7. The securing device of claim 1, wherein: the spring pushes or pulls the bearing element into a first end position of the first control curve when the closure is closed and into an opposite second end position of the first control curve when the closure is opened; and the first bearing element can be displaced out of the first end position of the first control curve into the second end position of the first control curve by a rotary motion of the opener.
8. The securing device of claim 1, wherein: the first bearing element is disposed along the second control curve at a greater radius relative to a center of rotation of the opener when the closure is closed, and at a lesser radius relative to the center of rotation of the opener when the closure is open.
9. The securing device of claim 1, wherein: the second control curve is curved in an end region of the second control curve closest to a center of rotation of the opener, opposite to a direction of rotation of the opener when opening the closure.
10. The securing device of claim 1, wherein: the spring pushes or pulls the bearing element into a first end position of the first control curve when the closure is closed and into an opposite second end position of the first control curve when the closure is opened; a region of the first control curve including the first end position is aligned transverse to an acting force of the transmission element; and the bearing element is held in the first end position in a self-blocking manner when the closure is closed.
11. The securing device of claim 1, wherein: the first rotating and sliding connection includes a first guide curve and a second guide curve intersecting the first guide curve.
12. The securing device of claim 11, wherein: the transmission element includes at least two lever arms coupled to each other by a coupling joint, and the coupling joint includes a second bearing element received in a third guide curve.
13. The securing device of claim 12, wherein: the transmission element comprises a toggle lever.
14. The securing device of claim 12, wherein: the third guide curve is disposed on the support as a transition from the first control curve into the first guide curve, so that the first control curve, the third guide curve and the first guide curve form a continuous curve path.
15. The securing device of claim 12, wherein: one of the lever arms is configured as a locking lever interacting with at least one of the third guide curve and the first guide curve, the locking lever being configured to secure the closure in the closed rotational position of the closure.
16. The securing device of claim 12, wherein: the transmission element includes a part configured to force the closure into the closed rotational position of the closure by interacting with an outer contour of the closure at least near an end of a closing motion of the closure from the open rotational position of the closure into the closed rotational position of the closure.
17. The securing device of claim 16, wherein: the part of the transmission element is the second bearing element.
Description
(1) The invention is described in greater detail below using embodiment examples shown in the drawings. They show:
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15) A first preferred embodiment example of the present invention is explained using
(16) The holding element 2 comprises a panel holder 10. The panel holder 10 forms a mounting surface 10.1 by means of which said holder can be placed against the inner side of the front panel, not shown. The panel holder 10 can then be secured to the front panel by means of securing elements 11. Two guide segments 12.1, 12.2 are formed on the panel holder 10 opposite the mounting surface 10.1 and spaced apart from each other. The guide segments 12.1, 12.2 are aligned at an angle, preferably 90°, to the mounting surface 10.1. It is also conceivable, however, to align the guide segments 12.1, 12.2 slightly inclined toward each other in order to allow easier inserting of the securing device 1. The second guide segment 12.2 shown in
(17) The guide segments 12.1, 12.2 are each penetrated by a capture pin receptacle 14. The capture pin receptacles 14 are implemented as elongated holes. Said holes are aligned in the plane of the mounting surface 10.1. A capture pin 13 is fixed in the capture pin receptacles 14. The position of the capture pin 13 can be adjusted along the capture pin receptacles 14. The panel holder 10 having the guide segments 12.1, 12.2 formed thereon is implemented as a stamped sheet metal part.
(18) A support 20 is associated with the closing element 3. The support 20 is produced from sheet metal as a stamped part. Said support comprises a mounting region 21.1. A top contact area 21.2 at a top end and a bottom contact area 21.2 at a bottom end, relative to an installed situation on a drawer, not shown, are formed on the mounting region 21.1. The top contact area 21.2 and the bottom contact area 21.3 are aligned at an angle to the mounting region 21.1 toward a receiving frame 30 of the closing element 3. The receiving frame 30 is disposed nearly entirely covered by the support 20 in the selected view. Said frame is here also implemented as a stamped sheet metal part. The receiving frame 30 comprises a center segment 37 disposed spaced apart from the mounting region 21.1 of the support 20. A frame cover 32 is formed at the top end of the center segment 37 and a frame floor 31 is formed at the bottom end. The frame cover 32 and the frame floor 31 are thereby aligned at an angle to the center segment 37 and toward the support 20. The frame cover 32 thus contacts the top contact area 21.1 of the support 20 or is disposed spaced slightly apart from the same. The frame floor 31 contacts the bottom contact area 21.3 of the support 20 or is disposed spaced slightly apart from the same.
(19) The frame cover 32 is pivotally connected to the top contact area 21.2 of the support 20 by means of a bearing stud 33. On the opposite end, the frame floor 31 is pivotally connected to the bottom contact area 21.3 by means of a rivet, not shown. The bearing stud 33 and the rivet, not shown, form a pivot axis about which the support 20 can be pivoted in a defined angle range relative to the receiving frame 30. It is also conceivable to provide a second rivet in place of the bearing stud 33. The pivoting connection between the support 20 and the receiving frame 30 is then produced by the two rivets. The pivot axis of the support 20 runs along the axis of the rivets aligned to each other in the present embodiment variant.
(20) A capture pin guide 26 facing the holding element 2 is machined into the mounting region 21.1 of the support 20. The capture pin guide 26 is implemented as an elongated penetration starting from the edge of the mounting region 21.1 facing toward the holding element 2. The holding element 2 is aligned relative to the closing element 3 such that the capture pin 13 is disposed at the height of the capture pin guide 26. The holding element 2 can thus be pushed toward the closing element 3. The guide segments 12.1, 12.2 are thereby guided past the side of the mounting region 21.1. At the same time, the capture pin 13 is inserted into the capture pin guide 26 and guided therein. The capture pin guide 26 is expanded toward the opening thereof by formed bevels. When pushing the holding element 2 and the closing element 3 together, the capture pin 13 is thereby guided to the capture pin guide 26.
(21) A height adjusting unit 80 is secured to the mounting region 21.1 of the support 20. The height adjusting unit 80 is implemented as a stamped sheet metal part. Said unit makes surface contact with the mounting region 21.1. The height adjusting unit 80 is substantially U-shaped in design. Said unit thus implements a receiving area 81 open in the direction toward the first guide segment 12.1 of the holding element 2. The contour of the receiving region 81 corresponds to the outer contour of the first guide segment 12.1. When pushing together the holding element 2 and the closing element 3, the first guide segment 12.1 is inserted into the receiving region 81 of the height adjusting unit 80 and guided thereby. The height adjusting unit 80 thus provides the precise alignment of the holding element 2 relative to the closing element 3. The height adjusting unit 80 is linearly adjustably connected to the mounting region 21.1. To this end, the height adjusting unit 80 comprises an elongated hole 82 at a first mounting point. A pin 84 is guided through the elongated hole 82 and fixed in a hole 21.4 in the mounting region 21.1 of the support 20 shown in
(22) A closure 50 is pivotally secured on the support 20. The closure 50 is produced as a stamped sheet metal part here. As can be seen in more detail particularly in
(23) In the open position of the securing device 1, as shown in
(24)
(25) A closure axis receptacle 29.1 is made as a hole in the mounting region 21.1 laterally offset from the capture pin guide 26. The closure axis receptacle 29.1 serves for pivotally securing the closure 50 on the support 20. A first guide curve 90 is disposed spaced apart from the closure axis receptacle 29.1. The first guide curve 90 is formed in the mounting region 21.1 as an elongated penetration. It runs in a curved path. The first guide curve 90 is thereby disposed circumferentially to the closure axis receptacle 29.1 over a limited angle range. The spacing of the first guide curve 90 from the axis of rotation of the closure 50 changes along the path of said curve. The axis of rotation of the closure 50 runs along the centerline of the closure axis receptacle 29.1.
(26) The guide stud receptacle 27 is disposed laterally offset adjacent to the closure axis receptacle 29.1. An eccentric pin receptacle 28 is formed in the mounting region 21.1, also as an elongated hole. The eccentric pin receptacle 28 serves for receiving and guiding an eccentric lobe 85.1, as shown in
(27) A worm guide 25 in the form of a penetration is disposed in the mounting region 21.1. Embossments 25.1 are formed at opposite edges of the worm guide 25. As can be seen particularly in
(28) As shown in
(29) A side lug 20.2 is formed on the bottom contact area 21.3. The side lug 20.2 is implemented as an elongated edge protruding past the bottom surface of the bottom contact area 21.3. When the securing device is assembled, the side lug 20.2 is thus aligned in the direction toward the frame floor 31 of the receiving frame 30 (see
(30) The mounting region 21.1 of the support 20 is further penetrated by an opener axis receptacle 29.2. The opener axis receptacle 29.2 serves for pivotally securing an opener 70.
(31) As shown in
(32) As can be further seen in
(33)
(34) The closure is disposed aligned between the support 20 and the receiving frame 30 in the open position thereof. Said closure is pivotally connected to the support 20 by means of a closure holding pin 52. To this end, the closure holding pin 52 is guided through the closure pin receptacle 51 of the closure 50 and the closure axis receptacle 29.1 of the support in the assembled securing device 1 and axially fixed. The bearing piece 63 is guided through the hole 61 of the transmission element 60 on the closure side, the penetration on the support 20 forming the first guide curve 90, and the second guide curve 91 on the closure 50. The bearing piece 63 is held axially at the end by a connection to a washer 101.
(35) The height adjusting unit 80 is spaced laterally apart from the support 20 and opposite the receiving frame 30. Said unit makes surface contact with the mounting region 21.1 of the support 20 for assembling the securing device 1, such that the guide stud 83 thereof is disposed in the guide stud receptacle 27 of the support 20. The pin 84 is guided through the elongated hole 82 of the height adjusting unit 80 and the hole 21.4 and fixed at the end to a washer 101. The eccentric pin 85 is guided through an eccentric guide 86 of the height adjusting unit 80 and an eccentrically disposed eccentric lobe 85.1 is guided in the eccentric receptacle 28 on the support 20. By actuating the eccentric pin 85, the height of the height adjusting unit 80 can be adjusted as described above.
(36) The receiving frame 30 is aligned so that the frame cover 32 thereof and the frame floor 31 thereof face toward the support 20. When assembling the securing device 1, the frame cover 32 is pushed under the top contact area 21.2 of the support 20 such that the bearing stud 33 connected to the frame cover 32 is inserted into a bearing stud receptacle 22.1 formed in the contact area 21.2. The frame floor 31 of the receiving frame 30 encloses the bottom contact area 21.3 at the opposite end when assembling, such that a rivet passage 34 made in the frame floor 31 is disposed aligned to a rivet receptacle 22.2 penetrating the bottom contact area 21.3. The frame floor 31 and the bottom contact 21.2 are then connected to each other pivotally about the longitudinal axis of the rivet by means of a rivet, not shown. The bearing stud 33 and the rivet, not shown, thus form the pivot axis previously described, about which the support 20 can be pivoted in a defined angle range relative to the receiving frame 30. The bearing stud 33 is conical in design. The support 20 can thereby be positioned opposite the receiving frame 30 without clearance. Side detent grooves 36 are formed in the frame floor 31. When the securing device 1 is assembled, the side detent 20.2 of the support 20 engages in the side detent grooves 36. This allows the support 20 to be pivoted relative to the receiving frame 30 in detent steps defined by the side detent grooves 36. Here the side detent grooves 36 are selected such that the angle adjustment is possible at 1° increments.
(37) From the perspective selected in
(38)
(39) For securing a front panel to a drawer, the holding element 2 is first secured to the inner side of the front panel by means of corresponding securing elements 11, as shown as examples in
(40) In order to separate the front panel from the drawer again, a suitable tool, here a Phillips screwdriver, is inserted into the tool receptacle 73 of the opener 70. The opener is then rotated by means of the tool from the closed position thereof shown in
(41) The sequence of motion of the closure 50, the transmission element 60, and the opener 70 is defined by the two guide curves 90, 91 and the two control curves 92, 93. For the description below, the closing direction corresponds to the motion of each described component when closing the closure 50. Correspondingly, the opening direction of the motion corresponds to the motion of each component when opening the closure 50.
(42) The guide curves 90, 91 together with the bearing piece 63 form a rotating/sliding connection between the transmission element 60 and the closure 50 on the closure side. The guide curves 90, 91 are aligned so as to intersect. The bearing piece 63 is disposed at the intersection point of the two guides 90, 91 at all positions of the closure 50. The first guide curve 90 is guided in an arc through an angle segment about the center of rotation of the closure 50. The distance between the first guide curve 90 and the center of rotation is thereby reduced in the closing direction. The bearing piece 63 is thus guided closer to the center of rotation of the closure 50 by the first guide curve 90 when closing the closure 50. In the closed position thereof, the longitudinal extent of the closure 50 is aligned between the top contact area 21.2 and the bottom contact area 21.3 of the support 20. The longitudinal extent of the closure 60 thus runs nearly parallel to the mounting surface 10.1 of the panel holder 10. The reduced distance between the bearing piece 63 and the center of rotation of the closure 50 means that the transmission element 60 is displaced only slightly or not at all in the direction toward the top contact area 21.2 during the closing motion. The overall height of the closing element 3 can thereby be kept low. The reduced distance between the rotating/sliding connection on the closure side and the center of rotation of the closure 50 means that at the end of the closing motion or the beginning of the opening motion, a large angular displacement of the closure 50 relative to the displacement of the transmission element 60 is achieved. The displacement path of the transmission element 60 required for closing and opening the closure 50 is thereby reduced. This enables a compact structure of the securing device 1. The substantially radial alignment of the second guide curve 91 on the closure 50 enables the radius to be changed at which the rotating/sliding connection on the closure side is guided about the center of rotation of the closure 50. The second guide curve 91 is thereby curved away from the transmission element 60 with an increasing radius relative to the center of rotation of the closure 50. When closing the closure 50, the rotating/sliding connection on the closure side is forced by the first guide curve 90 to a smaller radius from the axis of rotation of the closure 50. The second guide curve 91 is guided in the direction toward the transmission element 60 for said smaller radius. This causes an increased angular displacement of the closure 50 at the end of the closing motion thereof for a given displacement of the transmission element 60. Only a comparatively small displacement of the transmission element 60 is thus required in order to enable a comparatively large rotation of the closure 50. This leads to a further reduction in the required dimensions of the closing element 3. Guiding the rotating/sliding connection on the closure side along the intersecting guide curves 90, 91 makes it possible for a sufficiently large rotation of the closure 50 to release and fix the holding element 2 at a low installation height and reduced displacement paths.
(43) The control curves 92, 93, together with the first bearing element 64, form a rotating/sliding connection on the opener side between the transmission element 60 and the opener 70. The control curves 92, 93 are aligned so as to intersect. The first bearing element 64 is disposed at the intersection point of the two control curves 92, 93 at all positions of the closure 50. The spring 44 exerts a force on the first bearing element 64. The first control curve 92 is has a curved path. The two end positions 92.2, 92.3 of the first control curve 92 are thereby curved in the direction of the force applied by the spring 44. A vertex position 92.1 disposed between the two end positions 92.2, 92.3 is curved opposite the direction of the applied spring force. The first control curve 92 is thus curved opposite the acting spring force. When the closure 50 is open, the spring 44 presses the first bearing element 64 into the second end position 92.3 of the first control curve 92. When the closure 50 is closed, the spring 44 presses the first bearing element 64 into the first end position 92.2 of the first control curve 92. The first control curve 92 thus defines two stable positions of the transmission element 60 and thus the closure 50. When the closure 50 is closed, as is shown in
(44) For closing the securing device 1, starting from the open position of the closure 50 shown in
(45) In order to enable the motion of the first bearing element 64 along the first control curve 92 when opening and when closing the closure, the second control curve 93 on the opener 70 is aligned substantially radially to the axis of rotation of the opener 70. The first bearing element 64 is disposed at a lesser radius along the second control curve 93 relative to the axis of rotation of the opener 70 when the closure 50 is open, and at a greater radius of the second control curve 93 when the closure is closed. The second control curve 93 is curved opposite the direction of rotation of the opener 70 in the region of least distance to the axis of rotation of the opener 70 when opening the closure 50. The curved path achieves a comparatively great displacing of the transmission element 60 and thus of the closure 50 for low displacing of the opener 70. Accordingly, only a small installation space must be provided in which the opener 70 must be displaced. This measure also leads to a compact structure of the securing device 1.
(46) The described intersecting arrangement of the guide curves 90, 91 and control curves 92, 93 makes a great pivot angle of the closure 50 possible with a small space requirement and short positioning or rotating path of the opener 70. The design of the first control curve 92 thereby ensures self-blocking of the closure 50. The height adjustment and side adjustment can be used to precisely align an assembled front panel relative to a drawer.
(47) A further preferred embodiment example of the present invention is explained using
(48) One difference from the first embodiment example is that the transmission element 60 is multipart in design, particularly as a toggle lever having two lever arms 60.1, 60.2 connected to each other in an articulated manner in the embodiment example shown. The toggle lever 60 is shown in
(49) The second bearing element 98 is guided by a third guide curve 99 on the support 20 (cf.
(50) In an open position of the closure 50 (compare
(51) When inserting the capture pin 13 of the holding element 2 secured on the front panel of the drawer into the capture pin guide 26 of the support 20 and the pawl recess 54 of the closure 50, the closure 50 is displaced clockwise from the position shown in
(52) In the open position, the second bearing element 98 is disposed above an imaginary line connecting the first bearing element 64 and the bearing piece 63. When the securing device 1 transitions from an open position of the closure 50 into the closed position of the closure 50, the second bearing element 98 approaches ever closer to the imaginary connecting line and finally passes the same (compare
(53) In the closed position, the first and second bearing element 64, 98 and the bearing piece 63—unlike in the first embodiment example—do not make contact with a stop. The first control curve 92, for example, does not have a first end position 92.2 for the first bearing element 64 in the closed position, because the first control curve 92 transitions into the third guide curve 99. The first guide curve 90 also does not form a stop at the end thereof for the bearing piece 63 in the closed position (compare
(54) In order to reduce the clearance of the closure 50 in the closed position, and even completely eliminate clearance if possible, it can additionally be provided that part of the transmission element 60 presses the closure 50 into the closed position from the open position at least near the end of a motion of the closure 50. The corresponding part of the transmission element 60 preferably interacts with an outer contour 103 of the closure 50 (cf.
(55) A further different of the present embodiment example in comparison with the first embodiment example is explained in greater detail using