STRIPPING CLAW

Abstract

The invention relates to a stripping claw for insertion into a stripping tool, which is intended to strip a break-off part from a planar workpiece and comprises at least two tips (6.1, 6.2) to be placed onto the break-off part. According to the invention, the region between the two tips (6.1, 6.2) has a concave design.

Claims

1. A stripping claw for automated insertion into a stripping tool, which is intended to strip a break-off part from a planar workpiece and has at least two tips (6.1, 6.2) to be placed onto the break-off part, characterized in that a ram reception (7) is formed in a concave manner between the two tips (6.1, 6.2).

2. The stripping claw of claim 1, characterized in that the concave ram reception (7) has a radius (r) about a center point (M).

3. The stripping claw of claim 2, characterized in that the center point (M) is located outside a connection line (V) between the tips (6.1, 6.2).

4. The stripping claw of claim 1, characterized in that an end (3) is present, which comprises an abutment (4).

5. The stripping claw of claim 4, characterized in that a material strip (2) has the end (3) at one end and a free end (5) at the other end.

6. The stripping claw of claim 5, characterized in that the free end (5) comprises the two tips (6.1,6.2) and the ram reception (7).

Description

DESCRIPTION OF THE FIGURES

[0019] Further advantages, features and details of the invention will become apparent from the following description of preferred exemplary embodiments and by means of the drawings; these show in:

[0020] FIG. 1 a plan view of a stripping claw according to the invention;

[0021] FIG. 2 a perspective side view of the stripping claw according to FIG. 1;

[0022] FIG. 3 a perspective side view of another exemplary embodiment of a stripping claw according to the invention.

EXEMPLARY EMBODIMENT

[0023] Referring to FIGS. 1 and 2, a stripping claw 1 according to the invention consists of a strip of material 2, which is formed in an approximately rectangular manner.

[0024] Its one end 3 is designed approximately conical, which serves for better insertion into a stripping tool not shown in detail or a part of the stripping tool not shown in detail. Abutments 4 also serve for this insertion.

[0025] Precisely the abutments 4 are to prevent, after the insertion of the stripping claw 1 into the stripping tool, that the stripping claw 1 slides out of the stripping tool conventionally manufactured of wood.

[0026] For the present invention, however, the free end 5 of stripping claw 1 opposite the end 3 is important. Said end has a concave ram reception 7 between two tips 6.1 and 6.2, that is, a curvature directed in the direction of the end 3 of the stripping claw 1.

[0027] This ram reception 7 has a radius r about an imaginary center point M. This center point M lies outside a line V indicated in a dot-dashed manner between the two tips 6.1 and 6.2, so that the ram reception 7 proceeds altogether open to the imaginary center point M.

[0028] The ram reception 7 is precisely important in the automated and mechanical insertion of the stripping claw 1 into the stripping tool. A stripping claw according to the background art does not have a concave curvature in the form of the ram reception 7, but a planar surface, as the stripping claw according to the background art is held specially and driven into the stripping tool with a hammer.

[0029] The operating principle of the present invention is as follows:

[0030] The stripping claw 1 is, for example, inserted into a sleeve of a machine, not shown in detail, for manufacturing a stripping tool. The sleeve holds the stripping claw 1 until a ram drives into the sleeve and the stripping claw 1 is driven out of the sleeve and into the stripping tool.

[0031] For this, the ram drives into the ram reception 7 and presses the stripping claw 1 and is driven into the stripping tool.

[0032] Due to the fact that the ram reception 7 is formed concave, a self-centering of the stripping claw towards the ram is achieved. For this, the ram has a convex shape, which drives into the convex shape of the ram reception. Thereby, not only a self-centering is achieved, but also a favorable force absorption of the stripping claw 1 through the ram. The ram reception 7 of the stripping claw 1 enables a favorable force distribution. This is achieved in that the convex shape of the ram transfers the force to the concave shape of the ram reception 7 and thereby enables an advantageous force distribution on the entire stripping claw, as a larger contact surface is enabled.

[0033] A plurality of said stripping claws 1 cooperate to break out a break-off part not shown in detail.

[0034] The stripping claws 1 are pressed onto the break-off part, so that the tips 6.1 and 6.2 penetrate into the break-off part. If, for example, a slightly oblique position is to be present between the break-off part and the stripping claw 1 or the plate-shaped break-off tool, one of the tips 6.1 or

[0035] 6.2 penetrates into the break-off part in a leading manner.

[0036] However, as a width b of the tip increases as a result of the concave ram reception 7, the counter-pressure also increases, so that the break-off part can yield and the second tip 6.2 or 6.1 can penetrate into the break-off part. This is called self-centering.

[0037] On the other hand, stripping of the break-off part is facilitated by the free end 5 of the stripping claw 1 through the opening of the ram reception 7 selected due to the radius r, as the horizontal width b of the tip 6.1 or 6.2 increases potentially, the deeper the tip 6.1 or 6.2 penetrates into the break-off part.

[0038] In addition, FIG. 3 shows a further exemplary embodiment of a stripping claw 1 according to the invention. The features disclosed in FIGS. 1 and 2 also apply to the break-off claw 1. In particular, in cases where the same reference numerals have been used in FIGS. 1 and 2 and FIG. 3. In addition, in FIG. 3, a first chamfer 8.1 and a second chamfer 8.2 are shown. The first chamfer 8.1 shows a tapering of the tip 6.1 and the second chamfer 8.2. shows a tapering of the tip 6.2. These taperings are such that, on the one hand, a chamfer of the side edges to the point M takes place and, on the other hand, a flattening of the material strip 2 to the respective tips 6.1, 6.2.

TABLE-US-00001 LIST OF REFERENCE NUMERALS 1 Stripping claw 2 Material strip 3 End 4 Abutment 5 free end 6 Tip 7 Ram reception 8 Chamfer 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 b Width M Center point r Radius V Connection line