DE625685C - Two-rope gripper - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
FEBRUARY 13, 1936

REICH PATENT OFFICE

PATENT LETTERING

JVi 625685 CLASS 35b GROUP 6 ie

Johann Dehe in Leipzig two-rope grab

Addition to patent 591

Patented in the German Empire from March 22, 1934 The main patent started on June 17, 1932.

The invention relates to a two-rope gripper of the type protected by patent 591 286.

In the known gripper, the upper and lower crossheads are perpendicular to the superimposed pivot points of a four-bar linkage connected. The pivot points of the shells are located at the horizontally opposite pivot points of the handlebars this articulated square. In addition, the pivot point of each blade is with the opposite one Blade connected at a point below the blade pivot point.

The object of the invention is that the lying to the below the shell pivot points Place the opposite gripper shells leading prevention rods on the down or up over the shell pivot points, also extended handlebars of the Attack the quadrilateral joint.

In the drawing are exemplary embodiments shown according to the invention. In Fig. 1, the upper links of the four-bar linkage, in Fig. 2 the lower handlebars extended. In the design according to Fig. 3 and 4, all links are guided beyond the opposite pivot points.

The closing rope is guided over the upper and the lower pivot point of the quadrangle joint. These pivot points are labeled e and /. The handlebars are labeled a, b, c and d.

In order to achieve even greater closing forces and opening widths compared to the gripper according to the main patent, the upper links and b are extended downwards to points η in the embodiment according to Fig. 1. The connecting rods i and k , which lead to the _4Q points / and m on the shells 0 , engage at these points η.

In the embodiment according to Fig. 2, the lower links c and d are extended beyond the shell pivot points g and h to the point ρ at which the connecting rods i and k engage.

In the design of the gripper according to Fig. 3 and 4, the links a, b, C and d are extended beyond the horizontal pivot points g and h , and at the points /? the shells are suspended, while the connecting rods i and k act on the extensions of the links α and b at points η .

This ensures that when the gripper is closed, the pivot points «or ρ

62 & G85

reach out further and therefore the points / and m and thus also the gripper arms can describe a larger path.

It is also avoided that the fulcrum points of the gripping shells ο and the connecting rods / and k have to be combined at the hinge points g and h , which would result in an accumulation of different components at one and the same point.

Claims (2)

Patent claims: i. Two-rope grab according to patent 591 286, in which the upper and lower head of the animal are attached to the vertically one above the other Attack the pivot points of a four-bar linkage and the pivot points of the gripper shells coincide with the pivot points of the quadrangle that are opposite each other in the horizontal direction, characterized in that the lying to the below the shell pivot points Set the opposing gripper shells leading connecting rods on the down or after iaben attack the extended links of the quadrangular articulation beyond the pivot points of the shell. 2. Two-rope grab according to patent 591 286, in which the upper and lower crossheads on the vertically one above the other Attack the pivot points of a four-bar linkage and the pivot points of the gripper shells are attached to the horizontal Opposite direction of the pivot points of the articulated quadrilateral four extensions of the lower links of the four-bar articulation are located, characterized in that the lying to the below the shell pivot points Place the connecting rods leading to the opposing gripper shells at the pivot points opposite each other in the horizontal direction attack the downward protruding extensions of the upper link of the four-bar linkage. For this purpose ι sheet of drawings cEnnueKT m .DEn reichsbrückerei.