JPH0412286Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The invention is generally applicable to automobiles, various machines,
Particularly the engagement of a fixing clamp that is attached to a base body with a relatively small diameter metal pipe with a pipe diameter of approximately 20 m/m or less, which is installed as a supply route for oil and air supply to equipment, etc. This invention relates to improvements to fixed structures.

[Conventional technology]

Conventionally, as shown in FIG.
3, a curved engagement wall 14 having a truncated circular cross section and having the same width as the mounting wall.
With the pipe P' set on the engagement wall using the metal clamp body 11 provided with the metal clamp body 11, the tip edge of the engagement wall 14 is heated and soldered to the outer peripheral surface of the pipe P' using a burner or the like. It was fixed at 15.

[Problem that the invention attempts to solve]

However, in such a conventional fixing structure, the distal end edge of the engagement wall 14 is fixed to the pipe P' by solder welding 15, so in the case of thin-walled pipes, etc. , Local overheating during soldering work often causes cracks on the pipe P' side due to deterioration of mechanical properties, and it is also recommended that a corrosion-resistant coating be applied to the pipe P' and the clamp body 11 in advance. As a result, the plating film has to be treated after the soldering work, which results in a significant decrease in work efficiency due to the complicated bending shape of the pipe P' side, and furthermore, the plating film thickness becomes uneven. It had the following problems.

In order to extremely effectively solve the above-mentioned conventional problems, the present invention provides an engaging wall of the clamp body that protrudes from at least one side in the width direction of the mounting wall, and sets the piping to the engaging wall. In this state, a separate socket member made of heat-shrinkable resin wraps around the set of piping including the entire engaging wall portion, and compresses the holding portion by heat contraction. By fixing the piping, there is no need for soldering and welding work, eliminating the worry of deterioration of the mechanical properties, and
It is an object of the present invention to propose an engaging and fixing structure that enables the use of pipes and clamp bodies that have been coated with a plating film in advance, eliminates the need for coating treatment after fixing, and that can significantly improve productivity with a simple fixing means. This is the purpose.

[Means to solve the problem]

The present invention is made of a metal material in which a curved engagement wall with a truncated circular cross section is protruded from at least one side in the width direction of the lower side of the plate-shaped mounting wall having a mounting hole for mounting on the mating base. When the piping is set in the engaging wall of the clamp body, the piping that includes the entire engaging wall can be connected by a short cylindrical or toric socket member made of a heat-shrinkable resin material. The gist of the present invention is an engagement and fixing structure of a pipe fixing clamp that collectively holds the vicinity of the set, and further fixes the pipe by heat-shrinking the socket member and compressing the holding part, and further includes a clamp for fixing the pipe. The main body,
The mounting walls are a pair of mounting walls facing each other, and the engaging wall protruding downwardly is formed to have a nearly cylindrical truncated cross section.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings. Fig. 1 is a plan view showing the engagement and fixing structure of the clamp for fixing pipes of the present invention, and Fig. 2 is a diagram of Fig. 1 A-A.
A cross-sectional view of the line, FIG. 3 shows another embodiment.
Fig. 4 is a cross-sectional view taken along the line B-B in Fig. 3, and Fig. 5 is a perspective view of still another embodiment. Curved engagement walls 4, 4' having a truncated circular cross section are provided on the lower side of the mounting wall 2 and protrude from at least one side in the width direction of the mounting wall (both left and right sides in the illustrated embodiment). It is a metal clamp body molded by The vicinity of the set of piping P including the engaging walls 4 and 4' is held together with the cylindrical or toric socket members 5 and 5', and the entire product or only the holding part is held together. 100℃
By heating at a low temperature below 100 degrees, the piping P is fixed by compressing the surrounding part including at least the entire engaging walls 4, 4' by thermal contraction of the socket members 5, 5' themselves. It is composed of

3 and 4 show other embodiments, 2',
Reference numeral 2'' designates a pair of mutually opposing plate-shaped mounting walls that constitute the clamp body 1, and the engagement walls 4 and 4', which are connected to each other on the lower side of the mounting walls, are formed into a substantially cylindrical cross-section. Fig. 5 shows still another embodiment in which the engaging walls 4, 4' and the mounting wall 2 are made separately and then fixed together by welding or the like.

[Effect]

Since the present invention is constructed in this manner, when the piping P is fixed, the left and right socket members 5, 5' are fixed while the piping is set to be engaged with the engaging walls 4, 4' of the clamp body 1. are moved in opposite directions to wrap around the set of piping P, including the entire engaging walls 4 and 4', and passed through a furnace to heat the entire product or just the wrapped portion to about 100°C. By heating at the following low temperature, the socket members 5, 5' are caused to undergo thermal contraction, compressing the holding portions and fixing the pipe P.

[Effect of idea]

As explained above, the engagement and fixation structure of the pipe fixing clamp according to the present invention includes an engagement wall 4 provided protruding from at least one side in the width direction of the mounting wall 2;
4', the socket members 5, 5', which collectively enclose the vicinity of the set of piping P including the entire engagement wall part, are heated to cause heat contraction and compress the enclosing part. Since the pipe P is fixed in place, superheated soldering work is not required, and therefore, the worry of cracks due to deterioration of mechanical properties on the pipe P side due to local overheating at high temperatures can be eliminated, and
Since it is possible to use the piping P and the clamp body 1 that have been coated with a corrosion-resistant coating in advance, coating treatment after fixing the piping is unnecessary, and productivity can be significantly improved by using a simple fixing means. This is an extremely useful engagement and fixing structure for clamps for fixing pipes.

[Brief explanation of drawings]

Fig. 1 is a plan view of an engaging and fixing structure of a pipe fixing clamp showing one embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 shows another embodiment. FIG. 4 is a sectional view taken along the line B--B in FIG. 3, FIG. 5 is a perspective view of still another embodiment, and FIG. 6 is a plan view of the conventional example. 1... Clamp body, 2... Mounting wall, 3...
Mounting hole, 4, 4'... Engagement wall, 5, 5'... Socket member, P... Piping.

Claims (1)

[Claims for Utility Model Registration] (1) A curved retainer with an truncated circular cross section is formed on at least one side in the width direction of the lower side of the plate-shaped mounting wall 2 having the mounting hole 3 to the mating base. Joining wall 4
Alternatively, when the pipe P is set in the engaging wall portion of the clamp body 1 made of a metal material with protruding portions 4 and 4', a short cylindrical or toroidal socket made of a heat-shrinkable resin material is inserted. The member 5 or 5, 5' allows the engagement wall 4 or 4,
A pipe fixing clamp characterized in that the pipe P is fixed by enclosing the vicinity of the set of the pipe P including the entire 4' section, and further by heat-shrinking the socket member to compress the enclosing part. Engagement fixed structure. (2) In the utility model registration claim described in claim 1, the clamp body 1 has its mounting walls 2 formed into a pair of mounting walls 2', 2'' facing each other, and protruding downwardly. An engagement and fixation structure for a clamp for fixing pipes, characterized in that an engagement wall 4 or 4, 4' provided thereon is formed into a substantially cylindrical-like occluded cross section.