DE592034C - Device for setting the grippers for the drive wheels of motor vehicles - Google Patents

Description

Wilhelm Keller in Oberderdingen, Württbg. Device for adjusting the grippers for the drive wheels of motor vehicles

Addition to patent 586 046

Patented in the German Empire on April 26, 1933 ah The main patent started on July 28, 1932.

The invention relates to a different from

contraption

according to patent

formation of
586 046.

The subject of the present invention is also a simplified device for adjusting the grippers for the drive wheels of motor vehicles, the simplification is achieved in that the gripper with a pawl directly to a step-wise . Snapping ratchet lock is formed.

The essence of the invention is that the inner end of the gripper with a Number of stepped incisions

* 5 is while the pawl is given a common finger shape.

The invention is shown in the drawing Fig. 1 to 4, for example, in one embodiment.

Fig. Ι represents a section through a Tractor wheel with built-in adjustment device according to the invention at one of the Gripper represent;

Fig. 2 shows the view associated with Fig. 1 dar;

in Fig. 3 the means for adjusting and releasing the gripper are shown;

Fig. 4 shows a section associated with Fig. 3.

The grippers α (Fig. 1 and 2) - for the sake of clarity, only one gripper is shown - are arranged in a sliding manner in a guide h and are under the influence of a suspension h (Fig. 2), which strives to move the gripper into the To pull inside the wheel r.

If the gripper α is to move from the inside of the wheel into a gripping position, a curved piece b (Fig. 1, 2, 3 and 4) which is pivotably arranged on the carriage frame w and which in the rest position runs coaxially to the wheel axis of the tractor is adjusted upwards. This has the effect that when the tractor wheel r subsequently rotates, a roller c arranged on the gripper is pushed up by the back of the curved piece b. As a result, the gripper α is lifted up and, depending on the inclined position of the curved piece b , protrudes from the interior of the wheel r to a greater or lesser extent. The gripper α is fixed in the respective gripping position obtained by a falling spring-loaded pawl e which, depending on the height of the gripper ο, engages in one or the other of the gradations k provided at the end of the gripper.

After all grippers a have reached the desired gripping position, the curve piece /; to bring it back to its rest position.

If the gripper α is to be drawn back into the interior of the wheel r from its gripping position obtained or to be brought from a high to a less high gripping position, the curve piece /; pivoted down. It is thereby achieved that with subsequent movement of the wheel r a roller /. , Which is attached to the pawl e, is pushed past the underside of the curve piece b away from this, whereby the pawl c is pivoted and releases the gripper 0, the is then drawn into the interior of the wheel r under the influence of the suspension d.

The adjustment of the curve piece b from its rest position upwards and downwards takes place by pivoting a hand lever b _{2 connected to it} (Fig. 1, 3 and 4) from the driver's seat.

Claims (1)

Claim: Device for setting up the grippers for the drive wheels of motor vehicles, in which the gripper, which is under spring action, is inserted into its. Track brought curve piece moved out and locked in the working position by a spring-controlled pawl which is provided with a stop serving to trigger it according to Patent 586 046, characterized in that the inner end (k) of the gripper (a) is multi-stage while the pawl (e) has a finger-like shape known per se. 1 sheet of drawings