CN101969810A - Plate holder for fastening a front plate to a drawer frame - Google Patents

Abstract

A plate holder is used to fasten a front plate to a drawer frame. The plate holder comprises a mounting bracket (4) that can be fastened to the front plate (1) and a mounting fitting (5) that can be fastened to the drawer frame. A locking wedge (11) is guided displaceably in the mounting fitting (5) at a right angle to the insertion direction of the mounting bracket (4) and is pushed into the fastening position by a spring force. The locking wedge (11) rests with a wedge surface (28) against the mounting bracket (4) and is articulated to a release lever (22), which is movably supported on the housing (9) of the mounting fitting (5) and has a key lug (26) for torque transmission. During insertion into the mounting fitting (5), the mounting bracket (4) engages a stop surface (27) of the release lever (22) such that the release lever (22) can be pivoted out of the mounting position thereof.

Description

Drawer Front Connections

technical field

The invention relates to a panel connecting device installed on a drawer assembly and used for connecting the drawer panels. It consists of a connecting piece that can be fixed on the panel and a holding mechanism that can be fixed on the drawer assembly. The holding mechanism relies on the tension of a spring to make a fastening element act in such a way: enter the connecting part of the connecting piece or withdraw to the release The location of the connector.

Background technique

In order to make the front panel assembly of the drawer easy and easy to replace, the drawer front panel should be fastened to the drawer assembly by simple means, and the panel assembly should be done simply and by light pressing without using special tools; at the same time , must withstand rapid pulling of the drawer under heavy load without the panels separating or loosening from the drawer assembly.

It is known that there are many different embodiments for attaching drawer fronts to drawer assemblies. German patent (DE102007053637A1) mentions a drawer panel connector, the locking element of its holding mechanism is a turning arm positioned by spring tension, the turning arm is contained in the holding mechanism and has a groove. In the process of bringing the connecting piece into the retaining mechanism, first the groove is pressed against by the connecting piece, and then the swivel arm deflects against the pressure of the compression spring and crosses the dead center, and then ends in the disengaged position. In this way, the bistable state of the turning arm is maintained by the tension of the spring acting on the turning arm. If a large pulling force acts on the panel (such as pushing and closing the drawer violently), the impact will cause The turning arm overcomes the spring force and swings, so that the connecting piece is released from the holding mechanism. In order to avoid this situation, a latch plate (referring to EP0636327A1) is added to the known drawer panel connection device to collide with the swinging turning arm to limit its swing and make it turn back. Although the number of parts is increased, But still doesn't completely solve the problem.

Due to unavoidable inaccuracies in machining and assembly, there must be play between the connecting piece and the swivel arm and/or the swivel arm and the latch plate so that the panel with the connecting piece becomes loose under high tractive loads, especially when Pushing and closing the drawer abruptly from the far end can cause an annoying phenomenon of brief relative displacement between the front panel and the drawer assembly.

The shortcomings of existing products need to be improved.

Contents of the invention

The task of the present invention is to provide a drawer panel connection device which ensures easy assembly and no mutual displacement between the drawer panel and the drawer assembly even when a high-intensity sudden load is applied.

The present invention comprises a connecting piece fixable on the panel and a retaining mechanism fixable on the drawer member, wherein a tensioned spring is loaded on a clamping element to move the clamping element between two positions: into the connection The connecting part of the connecting part or withdrawn to the position of releasing the connecting part; it is characterized in that the tightening element is a wedge-shaped locking piece that can be guided at least approximately at right angles to the direction in which the connecting piece slides into the functional part of the holding mechanism, and the wedge-shaped locking piece is in the Enter the connection position under spring pressure, so that the inclined surface of the wedge lock is against the pinch plate of the connector, and the wedge lock is hinged with the tappet located on the support of the holding mechanism, and there is a wedge on the wedge lock for alignment Keyhole to apply deflection moment.

The tappet has an impact surface which swings out of its clamped state when the impact surface is pushed, causing the link to be brought into the retaining mechanism.

The wedge-shaped locking piece has a transverse pin shaft, which is guided by at least one guide groove on the holding mechanism; the tappet is hinged to the wedge-shaped locking piece through the pin shaft.

The locking wedge has a front edge extending along the direction of movement of the locking wedge itself, and the leading edge can slide along a leading edge on the holding mechanism.

A support lug is arranged on the tappet, and the support lug is supported on the slide rail of the bearing of the holding mechanism.

The support is hinged on the holding mechanism through a pivot, and an eccentric cam makes the support swing around the pivot to obtain height adjustment.

A side adjustment bolt is screwed into a screw hole on one wall plate of the connecting piece, and its bolt head protrudes outside the other wall plate of the connecting piece.

The present invention realizes its function in this way: the wedge-shaped locking piece can have two stable extreme positions in the holding mechanism: one, when the tappet is in an upright state, the wedge-shaped locking piece is lifted up to a high position by the tappet, and the wedge-shaped locking piece The locking piece is separated from the connecting piece; second, when the tappet is in the state of tilting and sliding, the wedge-shaped locking piece loses the support of the tappet, and is inserted into the connecting part of the connecting piece under the pressure of the spring, so that the slope of the wedge-shaped locking piece is close to At this time, the wedge-shaped locking piece and the connecting piece are self-locked. In the self-locking state, even if a very high-intensity jerk load is applied to the panel, the connecting piece will not be released from the holding mechanism, thereby ensuring a safe and exact connection between the panel and the drawer assembly.

The present invention is provided with an impact surface on the tappet, and the impact surface is pushed by the connecting piece to make the tappet swing out from its clamping position; such a simple structure can be used without adding additional parts. The piece is knocked down on the tappet so that the wedge lock piece under spring pressure brings the connecting piece into the retaining mechanism and locks it in the locked position.

The structure of the present invention is simple and reliable, and is suitable for being installed on all drawers.

Description of drawings

Fig. 1 is a schematic diagram when the connector of the drawer panel does not enter the holding mechanism in the embodiment,

Fig. 2 is a sectional view along line II-II in Fig. 1,

Fig. 3 is a schematic diagram of the connector of the embodiment when it is normally fastened in the holding mechanism,

Fig. 4 is a schematic diagram of the connector in the embodiment when it is not tightly fastened in the holding mechanism,

Fig. 5 is a cross-sectional view along line V-V in Fig. 3 .

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

The present invention comprises a connecting piece fixable on the panel and a retaining mechanism fixable on the drawer member, wherein a tensioned spring is loaded on a clamping element to move the clamping element between two positions: into the connection part of the connecting part or back out to the position where the connecting part is released.

The embodiment of the drawer panel connection device shown in FIG. 1 includes a holding mechanism 5 installed on the side panel 2 of the drawer assembly and a part of the drawer panel 1 , and the connecting piece 4 can be connected with the holding mechanism 5 . The connector 4 has a base plate 6 for fixing on the panel 1, and the base plate 6 is fastened on the inner side 3 of the panel 1 with screws; the base plate 6 is bent to form two wall plates 7 facing each other, and then the wall plates 7 Then bend the buckle plate 8 that is inclined backward from bottom to top.

The holding mechanism 5 includes a support 9, and the support 9 is connected with the holding mechanism 5 through a lifting adjustment mechanism (described later); the support 9 bends a section of the tank 10, and the cross section of the tank 10 is roughly rectangular, and the connection The piece 4 can slide parallelly into the holding mechanism 5 from the opening of the tank 10 (ie, the direction from left to right in the figure).

In the support 9 of the holding mechanism 5, there is a wedge-shaped locking piece 11 (that is, the so-called tightening element in the present invention), and the wedge-shaped locking piece 11 can be slid into the functional part of the holding mechanism 5 with the connecting piece 4 (that is, the groove tube 10 ) at right angles (or at least approximately at right angles) to the direction.

Along the direction of movement of the locking wedge 11, there is a leading edge 12 on the locking wedge 11, by means of which the locking wedge 11 can be supported by a leading edge 13 on the support 9 of the holding mechanism 5 And slide up and down along this guide edge 13, there is a bearing pin 14 that passes wedge lock plate 11, bearing pin 14 also passes through the tappet 22 that is supported by the bearing 9 of retaining mechanism 5 simultaneously, so wedge lock plate 11 and The tappet 22 is hinged; the two ends of the pin shaft 14 extending laterally to both sides penetrate into two guide grooves 15 on the opposite two side plates on the support 9 of the holding mechanism 5 respectively, and are held by the two guide grooves 15. Guided and constrained.

Tappet 22 has two splints that surround wedge-shaped locking plate 11 and is used for constraining plate-shaped wedge-shaped locking plate 11, and it is hinged on the pin shaft 14 on the wedge-shaped locking plate 11 tiltably, and lifter 22 also has from two splints. On the support boss 23 that protrudes to both sides, the two ends of the support boss 23 are supported by two horizontally arranged slide rails 24 on the support 9 so that the tappet 22 can move on the support 9, and the slide rail 24 It is formed by the horizontally arranged slit 25 on the wall panels on both sides of the support 9, and the tail of the slit 25 limits the horizontal stroke of the support boss 23.

The compression spring 16 is a torsion spring exerting force on the wedge-shaped locking plate 11, its head end 17 is supported under the clamping foot 18 of the support 9, its end 19 presses the wedge-shaped locking plate 11, and its middle coil segment 20 suits On the support piece 21 on the support 9. The compression spring 16 is always trying to make the locking wedge 11 move down into the connected position.

In order to apply rotational torque to the tappet 22, a keyhole 26 that is easily accessible from the drawer assembly is provided near the bottom end of the tappet 22. The keyhole 26 is a cross seam that can be inserted into a screwdriver, and the screwdriver can be inserted to turn Tappet 22.

Below the tappet 22, there is an impact surface 27 facing the opening of the tank 10 of the support 9. When the connector 4 enters the tank 10 and collides with the impact surface 27, the buckle 8 of the connector 4 pushes the tappet 22 to the right. Swing it out of the clamping state, causing the connection piece 4 to be brought into the holding mechanism 5.

Figures 1 and 2 show the connection between the front panel 1 and only those drawer assemblies shown in the figures, which help to understand that the connecting piece 4 is pulled into the barrel 10 of the holding mechanism 5 . When the panel 1 moves to the right, the buckle plate 8 on the connector 4 will touch the impact surface 27 at the bottom of the tappet 22 to deflect the tappet 22, and the tappet 22 will deflect around the supporting post 23 while supporting the post 23 Will slide to the right end along the slide rail 24, tappet 22 becomes inclined state, thereupon, wedge lock plate 11 loses the support to it of tappet 22, and the elastic force of compression spring 16 will lift wedge lock plate 11 from original position. The position is pressed down to complete the combination of the buckle plate 8 on the connector 4 .

FIG. 3 shows the change of state when the tappet 22 enters the locked position after completing its transfer. The rear inclined surface 28 forming an angle with the moving direction of the wedge-shaped locking piece 11 is pressed into the inclined edge 29 on the pinch plate 8 , and the inclined angle of the inclined edge 29 is the same as that of the rear inclined surface 28 .

Referring to Fig. 3, the wedge-shaped locking piece 11 falls on the hypotenuse 29, and its leading edge 12 is blocked by the leading edge 13 on the support 9 of the holding mechanism 5 at the same time, and the inclination angle of the hypotenuse 28 of the wedge-shaped locking piece 11 is preferably made It has a very strong self-locking ability, and the combination of the two parts in this way is equivalent to fixing the two together, thus making it impossible to disengage from the holding mechanism 5 even if the connecting piece 4 is exerted with great strength.

FIG. 4 shows the positional relationship of each component when the connecting piece 4 does not enter to a sufficient depth as shown in FIG. 3 . This is due to the size error and assembly error between the drawer panel 1 and the side plate 2 of the drawer assembly and/or between the side plate 2 and the holding mechanism 5, causing the wedge-shaped locking piece 11 to fail to reach the deepest part of the groove cylinder 10. Location. Nevertheless, the inner surface 29 of the buckle plate 8 and the leading edge 13 of the support 9 can still firmly fix the wedge-shaped locking piece 11 extremely forcefully.

In Fig. 3, by inserting a screwdriver into the keyhole 26 of the tappet 22 and stirring the tappet 22 in a clockwise direction, the tappet 22 is restored to the release position shown in Fig. 1 , and then hinged on the tappet 22 The locking wedge 11 rises and releases the connecting piece 4.

Referring to Fig. 1, the supporting post 23 rests on the left end of the slit 25, and it is located approximately below the pin shaft 14 and slightly to the left in the height direction. The supporting post 23 forms the drag axis of the tappet 22, and the supporting post 23 The frictional force between the sliding rail 24 and the slot 25 keeps the tappet 22 in a stable state, and the release of this stable state can be achieved by the connecting piece 4 touching and pushing the impact surface 27 .

Referring to Fig. 2 and Fig. 4, a side adjustment screw 30 is screwed into the screw hole 31 on the wall plate 7 of the connector 4 and the screw tail of the bolt 30 protrudes outside this wall plate 7, the bolt of the side adjustment bolt 30 The head 32 then protrudes outside the wall plate 7 on the other side, and the length of the side adjustment bolt 30 is adapted to the width of the inner cavity of the tank tube 10 .

If a screwdriver passes through the adjustment hole 34 to turn the side adjustment bolt 30, the position of the connecting piece 4 in the tank 10 can be adjusted laterally, and in this way the position of the connecting piece 4 in the holding mechanism 5 can be set. Offset left and right, correcting the horizontal position of the panel.

Referring to the right side of Fig. 1, the holding mechanism 5 includes the support 9 including the tank 10, and the rear end of the support 9 is hinged on a bracket 38 of the holding mechanism 5 through a pivot 37, so that the support 9 can rotate around the pivot 37 swings. The concentric shaft of an eccentric cam 39 (seeing Fig. 3) is installed on the bracket 38, and its eccentric portion supports a slotted hole 40 on the support 9, and the support 9 can be wound around by rotating the eccentric cam 39 with a screwdriver. The pivot 37 swings to realize the adjustment of the relative height position of the tank tube 10 and the drawer assembly, thereby correcting the vertical position of the panel.

Claims (10)

1. A drawer panel connecting device for connecting a drawer panel on a drawer member, comprising a connector that can be fixed on the panel and a retaining mechanism that can be fixed on the drawer member, wherein a tensioned spring is loaded on a The tightening element moves the tightening element between two positions: entering the connecting part of the connecting part or withdrawing to the position of releasing the connecting part; characterized in that the said tightening element is a Sliding into the locking wedge (11) guided at least approximately at right angles to the functional part of the retaining mechanism (5), the locking wedge (11) enters the connection position under spring pressure such that the locking wedge (11) The inclined surface (28) abuts against the pinch plate (8) of the connecting piece (4), and the wedge-shaped locking plate (11) is connected to a movable tappet ( 22) Hinged, there is a keyhole (26) for applying a deflection moment to it on the tappet (22). 2. The drawer panel connecting device according to claim 1, characterized in that: the tappet (22) has an impact surface (27), when the impact surface (27) interferes with the connector (4) and collides Swinging the tappet (22) out of its clamped state causes the connecting piece (4) to be brought into the holding mechanism (5). 3. The drawer panel connecting device according to claim 1, characterized in that: said wedge-shaped locking piece (11) has a horizontally assembled pin shaft (14), and the pin shaft (14) is formed by a pin located on the holding mechanism (5). Guided by at least one guide groove (15). 4. The drawer panel connecting device according to claim 1, characterized in that: the wedge locking piece (11) has a front edge (12) extending along the moving direction of the wedge locking piece (11), and the front edge (12) can slide along a guide edge (13) on the holding mechanism (5). 5. The drawer panel connection device according to claim 1, characterized in that: the tappet (22) passes through the pin shaft (14) assembled horizontally on the wedge lock piece (11) and the wedge lock piece (11) hinged. 6. The drawer front panel connection device according to claim 1, characterized in that: the keyhole (26) is a cross seam into which a screwdriver can be inserted. 7. The drawer panel connecting device according to claim 1, characterized in that: said tappet (22) has supporting bosses (23) protruding to both sides, and said supporting bosses (23) are supported on the holding mechanism The slide rail (24) of the support (9) of (5) makes the tappet (22) adjustably supported on the slide rail (24). 8. The drawer panel connecting device according to claim 1, characterized in that: said tappet (22) has an impact surface (27), and when the impact surface (27) interferes with the connecting piece (4) , will drive the connector (4) into the holding mechanism (5). 9. The drawer panel connection device according to claim 1, characterized in that: the support (9) is hinged on the holding mechanism (5) through a pivot (37), and the support is made to The seat (9) swings around a pivot (37) to obtain adjustment in height. 10. The drawer panel connecting device according to claim 1, characterized in that: a side adjustment bolt (30) is screwed into a screw hole (31) on a wall plate (7) of the connecting piece (4) , its bolt head (32) protrudes outside the other wall plate (7) of the connector (4).

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