DE1029548B - Safety support clamp for gripping plates, in particular sheet metal - Google Patents

Description

GERMAN

Safety support clamps for gripping sheet metal, where transversely displaceable clamping means are inevitable in inclined slots, guided and with a guide means that performs the vertical displacement are coupled and kept at the same height when moving, are known. One has here also a guide plate by means of movable rods influenced by helical springs guided in the vertical direction on the clamping jaws provided with clamping rollers in the transverse direction are movable.

Such support clamps, however, do not meet all the requirements for clamping sheet metal plates. There is, in particular, the disadvantage that the clamping of the plate or a sheet metal is only correspondingly the length of the jaw is possible and that the plate can only be briefly grasped at the edge can.

The invention makes it its task to create a safety support clamp in which the to metal plate can be pushed deep enough into the mounting bracket and still far beyond the Jaws can stick out. This grips the sheet metal over a long distance.

The invention achieves that when plates are pushed onto the ground when the support clamp is lowered the plate is held firmly between the support clamps.

The invention consists in that a guided in the support clamp housing as a guide means Guide rods and an upper cross head formed, open at the bottom fork is used, the rods on have lower end transverse grooves into which the lugs of the transversely displaceable clamping jaws enclose, and that designed as a common securing means for both fork rods a guide rod as a toothed catch is, in which a known, transversely displaceable, spring action pawl engages. Protection is only sought for the combination of the above features.

A particularly advantageous innovation is the particularly simple release of the pawl, which can be brought out of its locking position by simply moving a slider, whereby the guide fork and the detected disk is released.

The invention can be carried out in various ways. It is illustrated in the drawing in one embodiment, namely shows

Fig. 1 is a plan view of the open support clamp housing;

Fig. 2 shows the clamping jaws in a clamping position with the plate clamped;

Figure 3 shows a side view of the safety support clamp;

Safety clamp for gripping
of plates, especially sheet metal

Applicant:
Wilhelm Krahn, Bremen, Grossenstr. 30th

Wilhelm Wellbrock, Bremen,
has been named as the inventor

Fig. 4 shows a cross section along line IV-IV of Fig. 1;

Fig. 5 shows a cross-section along line V-V of Fig. 1;

Fig. 6 shows a cross section along line VI-VI of Fig. 2 through the guide of the clamping jaw;

Fig. 7 shows a plan view of the jaw in the direction of arrow A of Fig. 2;

Fig. 8 shows a clamping jaw in view.

The safety support clamp consists of the support clamp housing 10, on which the cover 11 is attached, for example by means of the screws 12. That The support clamp housing is articulated to the support bracket 13 in a known manner.

In the support clamp housing, the clamping jaws 15, 15 a are guided displaceably in the horizontal direction in divergent, inclined guide grooves 14. For this purpose, one or more guide pins 16 engage in grooves 17 of guide grooves 14. Α are in vertical guide grooves 18, 18 the guide rods 19,19 α displaceably guided a guide fork 20 in the vertical direction. The guide rods 19, 19 α are provided with transverse grooves 21 in which guide lugs 22 of the clamping jaws 15, 15 a border.

The guide fork can be fixed in any clamping position by means of safety devices. To this end is For example, one guide rod is provided with a saw-shaped toothed catch 23 into which a transversely displaceable Latch 24, for example, with its front nose 24 a.

The pawl 24 is under the action of a spring, for example a leaf spring 25.

By means of a trigger, for example a slide 26, which has an inclined surface 27 behind the The nose 28 of the pawl 24 grips, the pawl 24 can be brought out of engagement with the toothed catch 23. Of the For this purpose, the slide is equipped with a stop

809 5019/182

surface 29 provided in order to avoid pushing back the pawl too far.

The function of the safety support clamp is as follows: When it hits the upper edge of a Sheet metal plate, the jaws are moved in the horizontal direction, so that the plate to be detected 30 grips between the clamping jaws (see Fig. 2). The jaws 15 are expediently on their The gripping surface is also provided with a roughening 31.

At the same time, the guide fork 19, 20 is pushed up and thereby causes a uniform transverse displacement of the clamping jaws. In the clamped position grasps the pawl 24 in the ratchet teeth 23, so that by abutting the detected sheet metal plate a cancellation the clamping effect is impossible.

Claims (2)

Patent claims: 1. Safety support clamp for gripping plates, especially metal sheets, in the case of the sliding Clamping jaws inevitably guided in inclined slots and with one the vertical one Shift performing guide means coupled and when shifted at the same height are held, characterized in that as a guide means in the support clamp housing (10) guided, formed by guide rods (19, 19 a) and an upper cross head (20), below Open fork is used, the rods of which have transverse grooves (21) at the lower end, into the lugs (22) the transversely displaceable clamping jaws (15), and that as a common securing means for both fork rods a guide rod (19) is designed as a toothed catch (23), into which one known, transversely displaceable pawl (24) under spring action (25). 2. Safety support clamp according to claim 1, characterized in that for triggering the Pawl (24) a slider (26) with an inclined surface (27) behind a nose (28) of the pawl (24) is provided. Considered publications:
U.S. Patent Nos. 2,347,922, 2,384,636,
559 223. 1 sheet of drawings ® 809 505/182 4.58