DE425585C - Bolt latch lock, especially for motor vehicles - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
FEBRUARY 20, 1926

REICH PATENT OFFICE

PATENT LETTERING

- JV * 425585 - CLASS 68 a GROUP

(014046 Ill \ 68a)

There are bolt latch locks for the doors of motor vehicles are known in which the The latch bolt is pushed into the closed position by a lever moved by the thumb and is determined. These locks have a relatively large number of moving parts and therefore a cumbersome design.

There is also known a bolt latch lock in which the usually playing Latch by turning a cam formed by the follower from the middle position in one direction the open position is withdrawn and locked in the other direction. With this one Bolt latch lock it is not possible to use the one with an inner curve cutout Cam, which expresses a large one-sided preponderance in the middle position, against to securely hold an unintentional locking of the bolt latch, all the less then, if when using this lock in a motor vehicle this excess weight due to impacts is increased significantly. In addition, the latch bolt must be used in this lock their locking can be slightly withdrawn from their extreme position, with under Under certain circumstances, the latch bolt can emerge from the strike plate.

In contrast, the invention forms a lock, especially for motor vehicles which the non-circular disk protrudes upwards from the nut, with its outer circumference between

Claims (1)

see two approaches of the bolt latch is effective and through a resilient stop in an upright middle position is kept in which they are not significantly overweight expresses and the latch bolt serves as a stop when the stroke is not fully executed, while it advances the latch before it is locked into the locked position. In the drawing, an embodiment of the lock is shown. It shows Fig. Ι the lock with the bolt retracted, Fig. 2 the position of the bolt when the lock is snapped in and unlocked, and Fig. 3 shows the locked lock. The latch b is guided directly on the nut neck by means of the slot g _{and has two projections C 1} and c ″, on which the outer circumference of the pusher follower, designed as a non-circular disk η, engages. The non-circular disk η protrudes upwards from the nut and is provided with a downwardly protruding thumb-like extension d (Fig. 2). The free end of the closing spring f presses the latch continuously against the non-circular disk n. A lever h sits on the rotatable bolt i , which is pressed against the thumb d when the spring is suitably preloaded. The path of the lever h is limited upwards by the bolt k. This means that when the lock is opened, the thumb d is released from the lever h and does not act as a brake when the latch is snapped shut when the door handle is released. In order to prevent centrifugal forces from automatically advancing the latch when the door is thrown, the lever h has a detent A ₁ through which the thumb d can only be moved by a certain force when the lock is locked (Fig ^{. 1. 3).} The function of the lock is as follows: In the middle position (Fig. 2) the non-circular disk η is held by the lever h . The latch b can move to the right when the door is thrown and is then pushed back against the non-circular disk η by the spring / behind the strike plate j as far as it will go. By turning the non-circular disk η in the direction of the arrow / (Fig. 2), its left curve comes to rest against the attachment C ₁ and pushes the latch b forward until this attachment engages in the notch r of the non-circular disk η (extended position, Fig. 3). At the same time , the thumb d has reached the latch H _{1 of} the lever h and is prevented from sliding back automatically by the torque of the spring. Although the blocking of the advanced case of r by the extended position of Riegelfalleriachse and detent is a safe, the aforementioned additional torque was the one hand, where for safety reasons due to possible manufacturing inaccuracies in the location of non-circular disk to latch case axis, on the other hand therefore, to -the last parts of the rotating non-circular disc to Approach C _{1 to be} fully pressed into 'the notch r. When the lock is unlocked by turning the non-circular disk η in the direction of arrow 2, the projection c “ interacts with the curve on the right-hand side and the latch bolt is thereby withdrawn to the middle position shown in FIG. By continuing to turn the non-circular disk in the direction of arrow 2, the latch is pulled back further to the right and finally comes into the open position (Fig. 1). The bolt latch movement is limited by the guide slot g of the bolt latch and by the neck of the nut. Another advantage of the present design is the possibility of converting the lock intended for a right-hand door for a left-hand door. It is for this purpose only necessary that non-circular disc η so the bolt case axis to turn that the thumb d is upward and the spring bolt i f together with the spring and the lever h in the pre-punched, symmetrical to the latch case, axle bore in stuck. The bolt k _v, which has also already been attached beforehand and which can have a thread for fastening the cover plate (not shown), then has the effect of bolt k. 95 godparents τ claim: Bolt latch lock, especially for motor vehicles, in which the bolt latch, which is usually used, is retracted into the open position by turning a cam formed by the follower in one direction and locked in the delandean direction, characterized by a non-circular disk (s) protruding upwards from the follower, with its outer periphery ■ -between two lugs (q, c ₂₎ of the bolt case (b) is effective, and by a resilient stop (a) - is held in the upright neutral position, in which the L ^T nrundscheibe the latch bolt at not quite executed stroke serves as a stop while it moves the latch before it is locked in an advanced locking position. 1 sheet of drawings.