CH627535A5 - Pipe clamp - Google Patents

Description

627535

2nd

PATENT CLAIMS

1) Pipe clamp, consisting of two halves, which are connected to one another by a joint that has eyelets, which are formed by rolled end wheels of the clamp halves, characterized in that the eyelet (14) of the one clamp half (11) has an axis of rotation for the eyelet (19) of the second clamp half (12) and that in the first clamp half (11) for the passage of the edge part, which forms the eyelet (19) of the second clamp half (12), there is an opening (17) that the eyelet (14) the first clamp half (1 1) is immediately adjacent.

2) Pipe clamp according to claim 1, characterized in that the edge part (15) of the first clamp half (11), the end of which forms the axle eye (14), is bent against the bend of the clamp half (11) so that the inner surface of the two by the jointed clamp halves (11, 12) are substantially aligned.

3) Pipe clamp according to claim 1, characterized in that both clamp halves (11, 12) are of equal width, that the eyelet (14) of the first clamp half (11) extends over the entire width of this, that the eyelet (19) of the second Half of the clamp (12) consists of an end edge tab (18) tapered substantially to half the width of the clamp halves, that the width of the opening (17) corresponds essentially to half the width of the clamp halves and that the opening (17) and the end edge tab (18) are located at substantially equal distances from the longitudinal edges of the clamp halves.

4) Pipe clamp according to one of claims 1 to 3, characterized in that the axle eyelet (14) and thus the opening (17) is provided on the clamp half (II), which also has an opening (21) for fastening a trunnion (22) having.

The invention relates to a pipe clamp, such as is used for waste pipes (= drain pipes) for gutters.

The known pipe clamps of this type consist of two halves which are pivotally connected to one another by a hinge, the bearing eyes of which are formed by rolled-in end edges of the clamp halves. The bearing eyelet of one clamp half extends only over one half of the end edge and the bearing eyelet of the other half of the clamp over the adjacent other half of the other half of the clamp so that the two bearing eyelets can be aligned and a common bearing pin inserted through both bearing eyelets as a pivot axis can be. This bearing pin has a head and must be riveted to the other end so that it does not fall out. A relatively large number of different operations are therefore required for the production of the known pipe clamps which represent a mass article.

The invention has for its object to provide a pipe clamp of the type mentioned above, which is much easier to manufacture than the known pipe clamps.

This object is achieved according to the invention by the features mentioned in claim 1. The fact that the eyelet on one half of the clamp forms an axis of rotation for the eyelet on the second half of the clamp saves the work involved in inserting and riveting the bearing pin. The punching out of the breakthrough can be carried out in one operation by punching out a breakthrough for a trunnion, which is also necessary in the known pipe clamps, e.g. a wall pin or the like. This simplification of the construction of the pipe clamp leads to a very significant rationalization and thereby cheaper manufacturing, since this is a pronounced mass article.

As is generally known, both clamp halves of a pipe clamp are of the same width. In such a case, a joint is obtained which can be loaded with the same tensile force as the known eyelets of the same width if the eyelet of the first half of the clamp extends over the entire width of the latter and the eyelet of the second half of the clamp from essentially one half the width of the clamp halves tapered end edge lobes. Since the opening for the end edge flap forming the bearing eyelet must essentially correspond to half the width of the clamp halves, it follows that both eyelets are connected to the remaining part of the clamp half by half the width of the clamp material, as is also the case with the known pipe clamps the case is. In the case of the pipe clamp according to the invention, however, there is the advantage that the load on the bearing is symmetrical in the event of a tensile load, which has a favorable effect on the tensile strength.

The invention is explained in detail in the following description of an embodiment shown in the drawing.

Show it:

Figure 1 is a plan view of the embodiment.

Fig. 2 is a perspective view of the joint;

3 and 4 views of the two joint halves in the disassembled state.

The embodiment of a pipe clamp according to the invention shown in the drawing consists of two clamp halves 11 and 12 which are connected to one another by a joint 13. To form the hinge axis, the entire end width of the clamp 11 is an eyelet

14 rolled up. The edge part 15, the end of which forms the axle eyelet 14, is bent about a line 16 (FIG. 3) against the bend of the clamp 11. In this bent edge part

15, an opening 17 is arranged at equal distances from the longitudinal edges of the clamp half 11, the width of which, measured parallel to the longitudinal axis of the axis eyelet 14, corresponds approximately to the width of the clamp half 11, so that the axis eyelet 14 has two strips corresponding to approximately a quarter of the width of the clamp half the remaining part of the clamp half 11 is connected.

The clamp half 12 has at its end adjacent to the joint 13 an end edge tab 18 which is substantially tapered to half the width of the clamp half 12 and, like the opening 17, is located at substantially equal distances from the longitudinal edges of the clamp half 12. This end edge tab 18 is bent against the bend of the clamp half 12 to form a bearing eye 19 which comprises the axis eye 14, as shown in FIGS. 1 and 2. Here, by bending the edge part 15 along the line 16, the inner surfaces of the two clamp halves essentially form a circular cylindrical surface that merges into one another when closed.

The clamp half 12 is further provided with a second opening 21 for a support pin 22 which is fastened in this opening in a known manner. The free ends 23 of the two clamp halves are bent in a known manner, as can be seen in FIG. 1, and are provided with bores for a connecting screw.

When assembling the pipe clamp shown, the two clamp halves 11 and 12 are placed together with their ends carrying the eyelets 14 and 19 in a position which corresponds to the fully open pipe clamp. Then it will be

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the eyelet 19 is pushed axially onto the eyelet 14 until the free end of the end edge tab 18 is opposite the opening 17. In this state, the pipe clamp is then folded up, so that the end edge tab 19 in the through

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broke 17 intervenes. Then the bearing eyelet 19 is then compressed a little so that the two clamp halves can still be freely pivoted, but can no longer be taken apart.

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1 sheet of drawings