DE1069029B - - Google Patents

Description

GERMAN

The invention relates to a closure, in particular for refrigerators, in which one of a force storage spring actuated pivoting fork latch provided for pulling the door onto the door rebate seal is.

As is known, the fork latch is mounted on a pivot lever in closures of this type free end is loaded by the energy storage spring. The fork latch is supported in the open position with a tensioned spring with a latch tail against a stationary support bolt. These closures require considerably large installation space.

It has also already been proposed, in order to achieve a low overall height of the closure and for the purpose of using several energy storage springs to achieve a large spring force, the energy storage device formed from helical springs directed in the closing direction of the door, which act on a cross member, which carries a pivoting fork latch. The latter is based on an im with a cam-like curve Housing fixed support roller. This gives rise to certain difficulties with regard to straight-line guidance the traverse, which must be effected by sliding guides.

The aim of the invention is now, the previously straight-guided by means of difficult sliding guides, with several symmetrically arranged energy storage springs equipped traverse now without sliding guides to lead reliably and uninhibited.

For this purpose, according to the invention, the arm of a toggle lever is attached to the traverse, the pivot latch sits on its hinge pin and the other arm around a fixed pin swings.

This makes it possible to move the crossbeam in a self-supporting manner without any friction losses result, which would lead to the bracing of the traverse and reduce the energy storage effect. aside from that there is the advantage of a small space requirement for the installation of the lock, an easy passage of the same and a simpler fabrication, since the accuracy of fit of bolts and eyes is easier to achieve is as such of sliding surfaces.

In order to give the closure a so-called foolproof security, i. H. a release - by playing To prevent the trap, furthermore, to achieve a parallel guidance of the traverse, is according to the invention Pivot of the toggle arm set on one leg of a fixed angle lever, its other leg is articulated by means of a pin in the transverse center plane of the traverse.

As a result of this configuration, the opening position is blocked by the dead center position of the toggle lever, also a parallel to the axial position of the power lock, especially for refrigerators

Applicant:
Carl Sievers, Heiligenhatis

Paul Brügert, Heüigeßhaus, and Otto Beckershoff, Velbert, have been named as inventors

Storage springs directed movement of the pivot pin achieved.

According to the invention, further advantages for the reliable functioning of the closure result from that the toggle lever is under the action of a spring pressing the knee joint against the faceplate and that furthermore the swivel latch is under the influence of a spring acting in the opening direction of the latch stands.

In the drawing, an example embodiment of the invention is shown, namely shows

Fig. 1 in longitudinal section a refrigerator lock with pull handle, in which a swivel latch carrying The toggle lever is hinged to the cross member carrying the energy storage springs in the closed position and

Fig. 2 the same in the open position.

In the illustrated embodiment, the lock housing consists of a housing base 1 and the with this firmly connected U-shaped folded housing box 3. The housing base is against the door wall 27 set and screwed tightly to the pull handle bearing plate 28.

A continuous pivot pin 4 is set between the side walls of the housing box 3 in order to which an angle lever 5 is pivotably mounted. One arm 5 'of the angle lever 5 is through the bolt 35 connected to a cross member 17 loaded by two energy storage springs 16. The latter lies in Closed position against the housing base 1, through which the pressure pin 22 of the ZiehgrifFes 23 passes.

The fork latch 6 rotates around the pivot pin 7 which forms the hinge pin of a toggle lever 32, 37.

The fork latch 6 has an outer short fork leg 8 and a longer fork leg 9, which both delimit the fork slot 10.

Beyond the pivot pin 7, the fork latch 6 has a latch tail 11.

909 648/48

Claims (4)

The arm 32 of the toggle lever is connected to a pin 33 located on the side of the stationary pivot pin 4 and seated on the angle lever 5 and is held by the spring 34 under pressure directed against the faceplate. Another pivot pin 36, which is stationary in the housing 3, carries the link 37, which also engages the pin 7. The fork latch has a latch spring 38 which causes the latch to tilt. In this embodiment, as can be seen from Fig. 2, when the lock is opened by the pull handle 23 and pin 22, the cross member 17 is raised. Here, the lever 5 pivots about its bearing pin 4 and spreads the pair of toggle levers 32, 37. The spring 34 supports this spreading and brings the lever into the dead center position or a little beyond it. The latch spring 38 pivots the latch 6 so that the latch tail 11 rests against the support pin 19. The latch tail 11 is now supported against the support pin 19 fastened in the lock housing. The lock piston 25 attached to the door frame 31 contains a pin 26 over which the fork slot 10 engages. If the pressure pin 22 releases the yoke, the lock remains in the open position. If the door is now moved against the frame 31, the fork slot 10 catches the pin 26. The fork latch is pivoted forward, the support surface of the latch tail 11 sliding off the support bolt 19. The toggle lever is then pushed through and the energy storage springs cause the angle lever 5 to pivot back. Here, the door is pulled firmly against the door seals with full spring force. For the purpose of closing, both a pivoting movement in the direction of the arrow χ (Fig. 2) and a pressure directed against the lock must act on the fork latch in order to trigger the energy storage device. As a result of these two combined one-way effects, there is an easier closing, free of support friction, and a certain foolproof security. Patent claims: 1. Closure, especially for refrigerators, with a pivotable fork latch supported against a fixed roller and an energy storage device consisting of two helical springs that acts on a movable cross member in the closing direction The push pin connected to the pull handle is actuated, characterized in that the arm (32) of a toggle lever engages on the cross member (17) , on the pivot pin (7) of which the pivot latch (6) sits, and the other arm (37) around a fixed pin (36) swings. 2. Closure according to claim 1, characterized in that the pivot pin (33) of the toggle arm (32) sits on one leg (5) of a fixedly mounted angle lever, the other leg (5 ') of which by means of a pin (35) in the transverse center plane the traverse (17) is articulated. 3. Closure according to Claims 1 and 2, characterized in that the toggle lever (32, 37) is under the action of a spring (34) pressing the knee joint (7 ') against the faceplate. 4. A closure according to claim 1 and 4, characterized in that the pivot latch is under the influence of a spring (38) acting in the opening direction of the latch (6) . Considered publications:
U.S. Patent Nos. 2,662,790, 2,698,197. Legacy Patents Considered:
German Patent No. 1 004 066. For this purpose, 1 sheet of drawings © m9 648/48 11.