DE20202520U1 - Self-closing for drawers or the like. - Google Patents

Description

TELEPHONE: 0 711/7.94 7J3 I ₄ | ¹ JEL^FAi: £o'7£*l/7 80 0 9 95/96

KÖHLER SCHMID + _s f** gijP^MAftW&EJR. . '«if *|?*7 0 5 6 5 STUTTGART

KÖHLER SCHMID + PARTNER

PATENT ATTORNEYS

24 451 p/ha

Anton Schneider GmbH & Co. Tullastrasse 3
79341 Kenzingen

Self-closing mechanism for drawers etc.

When drawers are pushed in, they are often not closed completely due to carelessness or, especially if the closing process is done with a lot of force, they open again slightly when they hit the cabinet. In order to ensure that a drawer is automatically closed completely shortly before it reaches the closed position, it is already known to provide a self-closing mechanism that supports the drawer's retraction movement.

Such self-closing mechanisms have a tilting element in a housing that can be moved lengthways between two end positions against the force of a spring. This is moved along when the drawer is pulled out, so that the spring is tensioned. At the end of the self-closing mechanism, the tilting element then clicks into place and tilts down.

member so that it is locked in position on the one hand and the drawer's driver is released on the other. The drawer can then be pulled out completely. When the drawer is pushed in, the tilting member is disengaged again by the driver so that it is pulled back to its original position by the spring. The tilting member takes the drawer's driver with it so that it is pulled in completely.

In a known embodiment of this type, the tilting member rests against a guide bar of the housing, the guide bar having a stop at one end, the fixed point of the spring, and a locking tongue or the like at the other, and the spring engaging on the one hand on the housing and on the other hand on a part of the tilting member projecting beyond the guide bar, which has a locking lug at its end facing away from the spring engagement for engaging under the locking tongue in the tilted position.

In order to simplify the construction of such a self-closing mechanism, according to the invention the housing has a channel limited by two side walls for guiding the tilting member, which has the guide bar on one side of the wall and a support bar offset in height on the opposite side, with a gap between the two bars and the walls for the one-stepped cross-section of the tilting member.

ste adjacent tilting element resting on the support bar is provided.

In order to prevent the drawer from hitting the cabinet too hard and causing it to swing back and forth, a damping device for the tilting element is preferably provided on or in the housing. The damping device is conveniently arranged in a chamber in the housing below the guide rail and a stop piston of the damping device extends into the channel for the tilting element.

The drawing shows an embodiment of the invention. It shows:

Figure 1 is a perspective view of a self-retractor with a relaxed spring,

Figure 2 is a view according to Fig. 1 with tensioned spring,

Figure 3 shows a longitudinal section according to Fig. l with a drawer driver,

Figure 4 is a longitudinal section according to Fig. 2 with the tilting element engaged and the driver released,

Figure 5 shows a cross section according to Fig. 3,

Figure 6 is an exploded view of the self-feeder.

The self-closing mechanism consists of a housing 1, a tilting member 2, a tension spring 3 and a damping device. A channel 5 is provided in the housing 1 and is delimited by two side walls 6 and 7. As shown in Fig. 5, the wall 6 is offset in its upper part at 8, the transverse part forming a guide strip 9 for the tilting member 2. The side wall 7 is angled inwards at its lower end, the crossbar serving as a support strip 10.

The tilting member 2 is offset in a single step, with the transverse surface 11 resting on the support strip 10 of the side wall 7. Below the transverse surface 11 of the tilting member 2 there is a receptacle 12 for the driver 13 shown in Figs. 3 and 4 of a drawer (not shown in detail). Opposite the receptacle 12 there are two hump-like projections 14 and 15. The tilting member 2 rests with the projection 14 on the guide strip 9, while the projection 15 serves to attach the spring 3. The other end of the spring is fixed to the pin 16 of the housing 1.

In Fig. 3, the spring 3 is relaxed and the tilting member 2 rests against the stop 17 of the housing 1. When the drawer (not shown) is pulled out, the driver 13 takes the tilting member 2 in the direction of the arrow 18 and thereby tensions the spring 3. The

—5—

Guide rail 9 has a locking tongue 19 at its front end. As soon as the front stool-like projection 14 slides past the locking tongue 19, the tilting member 2 pivots into the position shown in Fig. 4 and locks. The driver 13 is released by the inclined position and the drawer can be pulled out completely without moving the tilting member 2 any further.

When the drawer is pushed in, the driver 13 hits the stop 17 on the tilting member 2 and pivots it anti-clockwise so that the hump-shaped projection 14 again comes to rest under the guide bar 9. As a result, the tilting member 2 can move freely again and is pulled back into the starting position according to Fig. 3 by the spring 3, whereby the drawer (not shown) is pulled into the end position via the driver 13.

In order to prevent impact on the stop 17, a damping device 4 is provided in a chamber 21 of the housing 1. The piston 22 of the damping device 4, which is designed as a cylinder, projects into the channel 5, as can be seen in particular from Fig. 4. The tilting member 2 is then pulled into the rear end position in a damped manner when it hits the piston 22.

Claims (3)

1. Self-closing mechanism for drawers or the like, with a tilting member which can be moved longitudinally in a housing between two end positions against the force of a spring, which is provided with a receptacle for a driver of a drawer and rests against a guide rail of the housing, the guide rail having a stop at one end, the fixed point of the spring, and a locking tongue or the like at the other end. and the spring acts on the one hand on the housing and on the other hand on a part of the tilting member which projects beyond the guide bar and which has a locking lug on its end facing away from the spring attack for engaging under the locking tongue in the tilted position, characterized in that the housing ( 1 ) has a channel ( 5 ) delimited by two side walls ( 6 , 7 ) for guiding the tilting member ( 2 ), which has the guide bar ( 9 ) on one of its wall sides ( 6 ) and a support bar ( 10 ) on the opposite side, offset in height, wherein between the two bars ( 9 , 10 ) and the walls ( 6 , 7 ) an intermediate space is provided for the tilting member ( 2 ), which is offset in cross-section in a single step, rests on the guide bar ( 9 ) and rests on the support bar ( 10 ). 2. Self-closing mechanism according to claim 1, characterized in that a damping device ( 4 ) for the tilting member ( 2 ) is provided on or in the housing ( 1 ). 3. Self-closing mechanism according to one or both of the preceding claims 1 and 2, characterized in that the damping device ( 4 ) is arranged in a chamber ( 21 ) of the housing ( 1 ) below the guide bar ( 9 ) and a stop piston ( 22 ) of the damping device ( 4 ) projects into the channel ( 5 ) for the tilting member ( 2 ).