JPH0547341Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is generally applicable to pipes with a diameter of about 30 m/m that are installed as oil supply and air supply channels for automobiles, various machines, devices, etc. The present invention relates to an improvement in the structure of a clamp for fixing a metal pipe or resin tube (hereinafter simply referred to as piping) having a relatively small diameter.

[Prior Art] Conventionally, as shown in FIG. 6, for example, as shown in FIG. The clamp body 21 is formed by bending the other end into an L-shape, and the mounting wall 23 and the bent wall 24 are connected by bolts 25.
The structure was such that the pipe P' was fixed by tightening all at once.

[Problems to be solved by the invention] However, in such a conventional technique, a tool such as a spanner is required for the fixing work because the bolts 25 are tightened all at once, and the screw tightening operation is troublesome. Furthermore, due to the shape of the wall portion 24 bent in an L-shape, tightening is performed at a position slightly away from the bent portion, and due to the tightening direction, the screwing is performed all at once on the mounting wall 23. , which tend to loosen over a long period of time, causing problems such as misalignment on the piping P' side due to engine or mechanical vibrations under installation conditions, and scratches on the outer circumferential surface due to such misalignment. It was hot.

The present invention has been developed in view of the above-mentioned problems of the prior art, and can simplify and speed up the fixing work.Furthermore, it eliminates the worry of loosening over a long period of time, and prevents misalignment of the piping side and the outer circumferential surface. It is an object of the present invention to provide a clamp for fixing piping that can prevent the occurrence of scratches and securely fix the piping.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has bottom wall portions near the center in the longitudinal direction that are connected to each other and have a circular arc surface that is approximately equal to the circular arc of the outer circumferential surface of the pipe. A clamp body is made of a flexible band material, which forms a pair of semicircular symmetrical gripping walls, and at least one of the gripping walls is connected to a flat mounting wall on either side of the gripping walls. Along the arcuate surface, a long groove is provided whose inner wall leading to the insertion port has a sawtooth surface, and on the other side, a side wall that is connected to the arcuate surface and engages with the sawtooth surface of the long groove portion has a similar sawtooth surface. The gist of the clamp is a piping fixing clamp configured with protruding tongues, and furthermore, the pair of gripping walls are connected at the bottom wall portions near the center by hinge means, and the tongues are connected to the surface thereof. It has a slit extending in the upper longitudinal direction.

[Function] Since the present invention is configured in this way, when the pipe is fixed in the pair of gripping walls, the long groove and the tongue are removed by inserting the tongue into the insertion port on one side. A simple operation based on mutual serrated engagement with the pieces results in quick and reliable fixing. Further, when disassembling the tongue, the engaged state can be easily released by lifting the tip of one side of the tongue upward.

[Example] Hereinafter, embodiments of the present invention will be described based on the drawings. Fig. 1 is a front view showing a state in which a pipe is fixed by the pipe fixing clamp of the present invention, and Fig. 2 is a right side view of Fig. 1. 3 is a right side view showing the unfolded state of the clamp body, and FIGS. 4 and 5 are views corresponding to FIG. 3 showing other embodiments. The clamp body is made of a relatively hard and flexible band made of polypropylene resin or polyamide resin, and the bottom wall near the center in the longitudinal direction is
A pair of semicircular symmetrical gripping walls 2, 2' are preferably connected to each other by hinge means 5 along their widths, and have a circular arc surface approximately equal to the circular arc of the outer circumferential surface of the pipe. , and a flat mounting wall 3 having a mounting hole 4 for attaching to the base body is continuously provided on at least one of the gripping walls. 3' is the other mounting wall. Reference numeral 6 denotes a long groove, and a long hole is provided along the arcuate surface of the gripping wall 2 to connect to the insertion port 6' bored near the bent portion 11 formed between the gripping wall 2 and the mounting wall 3 on one side. The inner wall of the hole is formed into a serrated surface. Reference numeral 7 denotes a tongue protruding from the arcuate surface of the gripping wall 2' on the other side, and the side wall has a similar serrated surface that engages with the serrated surface of the long groove 6 when the pipe P is fixed. It is something. A slit 8 is provided on the surface of the tongue piece 7 in the longitudinal direction as desired, and facilitates engagement with the long groove 6 portion. Reference numerals 9 and 9' designate hooks that protrude from both widthwise sides of one of the mounting walls 3 and 3' and are hooked to the other opposing mounting wall when the pipe P is in a fixed state. The tongue piece 7 may be provided integrally with a part of the gripping wall on either side of the pair of gripping walls 2, 2' (FIG. 3), The long groove 6 may be provided as a separate projecting part by riveting or the like on the wall (Fig. 4).Furthermore, as the long groove 6, a long hole whose inner wall has a serrated surface is provided in the gripping wall 2 on one side. Separate strip 1
Of course, it is also possible to polymerize and impregnate the material by riveting or the like (FIG. 5). Further, the sawtooth surfaces provided on the long groove 6 and the tongue piece 7 may be formed only on one of the opposing inner and side walls.

[Effects of the invention] As explained above, the pipe fixing clamp according to the present invention, when fixing the pipe P, holds the tongue piece 7 while the pipe is assembled into the pair of gripping walls 2, 2'.
Since the piping P is fixed by the mutual engagement of the sawtooth surfaces of the long groove 6 and the tongue piece 7 when it is inserted into the insertion port 6', the piping P can be fixed without the need for tools. It can be done extremely easily and quickly, eliminating the hassle of work, and furthermore,
Due to the uniform tightening of the entire circumference of the pipe P by the above-mentioned engagement, even under engine or mechanical vibration in the installed state, positional deviation on the side of the pipe P and the outer circumferential surface of the pipe side due to the positional deviation can be prevented. This is an extremely useful clamp for fixing pipes, as it can prevent scratches from occurring.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a state in which a pipe is fixed by a pipe fixing clamp according to one embodiment of the present invention;
1 is a right side view of FIG. 1, FIG. 3 is a right side view showing the clamp body in an expanded state, FIG. 4 and FIG. 5 are views corresponding to FIG. 3 showing other embodiments, and FIG. 6 is a side view showing the state in which a pipe is fixed by a conventional pipe fixing clamp. 1: Clamp body, 2, 2': Grip wall, 3
. . . mounting wall, 4. . . mounting hole, 5. . . hinge means, 6. . . slot, 6'. . . insertion port, 7. . . tongue, 8. .

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of a semicircular left-right symmetry whose bottom wall portions near the longitudinal center are connected to each other and whose arc surface is approximately equal to the arc of the outer peripheral surface of the pipe P. Either one of the gripping walls 2, 2' of the clamp body 1 is made of a flexible band material forming a pair of gripping walls 2, 2', and at least one of the gripping walls is connected with a flat mounting wall 3. Along the side arc surface,
A tongue piece is provided with a long groove 6 whose inner wall leading to the insertion port 6' has a serrated surface, and on the other side has a similar serrated surface on the side wall that connects to the circular arc surface of the long groove 6 and engages with the serrated surface of the long groove 6. A clamp for fixing piping, characterized in that it is constructed by protruding 7. (2) In claim 1, the pair of gripping walls 2,
Reference numeral 2' denotes a pipe fixing clamp characterized in that the bottom wall portion near the center is connected by hinge means 5. (3) The pipe fixing clamp according to claim 1, wherein the tongue piece 7 has a slit 8 extending in the longitudinal direction on its surface.