JPH0717902Y2 - Pipe fitting - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe fitting for fixing a power steering pipe, a fuel pipe, a brake pipe or the like of an automobile to a vehicle body.

[0002]

2. Description of the Related Art Conventionally, for fixing a power steering pipe or the like of an automobile to the vehicle body side, as shown in FIG. 6, two pipes 102, 102 are partially fixed.
The mounting metal fitting 101 bent in a shape along the outer peripheral wall of the mounting metal fitting 101 is used, and the pipes 102 and 102 are temporarily fixed to the bent portions 103 and 103 of the mounting metal fitting 101 by electric resistance welding, and are mounted to the piping 102. Brazing material 10 in the gap with the metal fitting 101
2 pipes 1 by attaching 4 and heating to a predetermined temperature
02 and 102 are firmly fixed to the mounting bracket 101, and are piped to the vehicle body side (not shown) by the bolt 106 through the bolt insertion hole 105 formed at the end of the mounting bracket 101 as shown in FIG. It was made to attach in the state which bundled 102,102.

[0003]

However, the above-described conventional mounting bracket requires the steps of electric resistance welding for temporary fixing, the step of attaching the brazing material, the heating step of melting the brazing material, etc. It was not economical because of the large number of steps.

In the electric resistance welding for temporary fixing, there is a case where a pipe to be fixed sometimes has a hole due to the occurrence of a spark, and it is necessary to check the presence or absence of the hole by an inspection, which is more economical. It was getting worse.

Further, since the brazing heats the pipe to a high temperature, when the pipe is coated with a fluororesin or the like for the purpose of improving the corrosion resistance, the resin is heated by the heat during brazing. There is a problem in that it may be deteriorated or melted and cannot be used for piping coated with such a resin.

The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to sufficiently withstand the vibration of an automobile, for example, similarly to the brazing structure of the fitting and the pipe. Further, it is an object of the present invention to provide a pipe fitting which is easy to fix to a pipe, does not require temporary fixing, and does not damage the resin coating when used for a pipe coated with a resin.

[0007]

In order to solve the above-mentioned problems, the present invention is bent into a U-shape, has a plurality of convex or concave lines on the inner and outer surfaces of its side wall, and has a bottom surface thereof. A pipe clamping portion having a hole formed therein and a pipe clamping portion that extends laterally from the bottom surface of the pipe clamping portion and is bent downward at the base thereof so that the mounting surface is lowered from the bottom surface of the pipe clamping portion. A metal fitting having an L-shaped pipe mounting portion arranged at a different position, an inner peripheral surface of the pipe gripping portion of the metal fitting, and a hole formed in a bottom surface of the pipe gripping portion. It is mounted by inserting a protrusion formed near the center of the outer peripheral surface, has a length that is substantially the same as the inner peripheral wall of the pipe holding portion, and has a width slightly wider than the pipe holding portion. The rubber cushion has ribs protruding toward the outer peripheral surface at both ends in the width direction. A pipe fitting comprising a pipe material, wherein both side walls of the pipe holding portion are wrapped around one or a plurality of pipes inserted into the pipe holding portion by crimping via the rubber cushion material. A pipe fitting for fixing the pipe to the fitting.

[0008]

The pipe fitting according to the present invention described above is a pipe fitting in which a rubber cushion material is preliminarily attached to the inner peripheral surface of the pipe holding portion which is bent into a U shape. The pipe fixture has an effect of being a fixture that can fix the pipe at an arbitrary position of the pipe with the rubber cushion material interposed. Further, the rubber cushion material is attached to the pipe holding portion by fitting a projection formed near the center of the outer peripheral surface into a hole formed in the bottom surface of the pipe holding portion. It is easier to mount than adhesive and other means, and the rubber cushion material is fixed to the pipe clamping part only near its center, so it can be easily used to fix pipes with different pipe diameters. A functioning action occurs. Further, since a plurality of convex stripes or concave stripes are formed on the inner and outer surfaces of both side walls of the U-shaped pipe holding portion to be wound around the pipe, when the side wall is crimped, sliding with the crimping machine occurs. The rubber cushion material mounted on the inner peripheral surface of the pipe clamping portion can be prevented from slipping, and the ribs formed at both ends of the rubber cushion material in the width direction can clamp the pipe of the rubber cushion material. This serves as a stopper for preventing the displacement from the portion, so that the pipe to be fixed can be smoothly wound by caulking the pipe holding portion via the rubber cushion material.

Also, in the pipe fitting according to the present invention, the rubber cushion material is attached by extending laterally from the bottom of the pipe holding portion and bending downward at the base thereof. Since the surface has the L-shaped pipe mounting portion arranged at a position lower than the bottom surface of the pipe holding portion by one step, the pipe attached to, for example, an automobile by the attachment floats from the automobile side. Since it will be attached by the mounting tool in this state and will not come into direct contact with the automobile, the vibration of the automobile side transmitted to the pipe is weakened and the pipe is coated with fluororesin or the like. In this case, the resin coating will not be damaged by contact with the automobile.

Further, in the present invention, as described above, since the sheet metal pipe holding portion is wound around the pipe by caulking through the rubber cushion material and the pipe is fixed to the fitting, the conventional brazing material is used. Fixing work is simpler than mounting, and similarly to the brazing structure, even when it is used for mounting pipes on automobiles, for example, it sufficiently withstands the vibration and uses the mounting tool. Even if the pipe to be attached is coated with fluorine resin or the like, the pipe can be fixed to the fixture without damaging the resin coating.

[0011]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing an embodiment of a pipe fitting according to the present invention, and FIG. 2 is a perspective view of an embodiment of a pipe fitting according to the present invention. Also, FIG.
FIG. 6 is a perspective view showing a state in which the pipe is fixed by using the pipe fitting according to the embodiment. 4 and 5
FIG. 4 is a sectional view taken along the lines AA and BB of FIG. 3, respectively.

In FIG. 1, reference numeral 1 denotes a pipe fitting according to the present invention, which is composed of a sheet metal fitting 2 and a rubber cushion member 3 mounted on the sheet metal fitting 2. ing.

The sheet metal fitting 2 includes a U-shaped bent portion 4 for holding the pipe, and an L-shaped pipe mounting portion 5 extending laterally from a bottom surface 4a of the pipe holding portion 4. Each of the side walls 4b, 4b of the pipe holding portion 4 is formed with a plurality of convex stripes 6 or concave stripes 7 extending laterally on the inner and outer surfaces thereof by embossing. Further, on the bottom surface 4a of the pipe holding portion 4, a hole 8 for mounting a rubber cushion material 3 described later is formed near the center thereof.

The L-shaped pipe mounting portion 5 extending laterally from the bottom surface 4a of the pipe holding portion 4 is bent downward at the base portion 5a thereof to form a mounting surface on the vehicle body side, for example. The attached portion 5b is the bottom surface 4a of the pipe holding portion 4.
The bolt insertion hole 9 is formed at the tip of the mounting portion 5b.

On the other hand, the rubber cushion material 3 mounted on the metal plate metal fitting 2 having the above-described shape has a length substantially the same as the inner peripheral wall of the pipe holding portion 4 of the metal plate metal fitting 2 and has a width of the pipe. It is a member having a width slightly wider than the width of the holding portion 4, and ribs 10, 10 protruding outward are formed at both ends in the width direction thereof.

Further, near the center of the inner surface of the rubber cushion material 3, there is formed a ridge 11 having a side wall along a part of the outer peripheral surface of the pipe which is fixed over the entire width in the width direction thereof, and near the center of the outer surface. A protrusion 12 is formed on the bottom surface 4a of the pipe holding portion 4 so as to be fitted into the hole 8.

With the metal plate fitting 2 and the rubber cushion material 3 formed as described above, the projections 12 formed on the rubber cushion material 3 are fitted into the holes 8 on the metal plate fitting 2 side. As a result, as shown in FIG. 2, the pipe fitting 1 according to the present invention, in which the both 2 and 3 are combined, is constructed.

When fixing the two oil pipes 13 for power steering of an automobile in a bundled state to the vehicle body side by using the above-described pipe fitting 1 according to the present invention, first, the oil pipe 13 is fixed. , 13 are inserted and placed in the pipe holding part 4 of the fixture 1 according to the present invention as shown in FIG. 2, and the two side walls 4b, 4b of the pipe holding part 4 are inserted by caulking. The rubber cushion material 3 is wound around 13 and 13 with the cushion material 3 interposed.

At this time, on both side walls 4b, 4b of the pipe holding portion 4 wound around the pipes 13, 13, a plurality of laterally extending projections 6 or recesses 7 are formed by embossing on each of the inner and outer surfaces thereof. Since it is formed, when the side walls 4b, 4b are crimped, slippage with the crimping machine can be prevented by the recessed line 7 formed on the outer surface of the side wall, and the pipe holding portion 4
The slippage of the rubber cushion material 3 attached to the inner peripheral surface of the above can also be prevented by the above-mentioned ridge 6 formed on the inner surface of the side wall, and the winding by caulking around the fixed pipes 13 and 13 can be performed smoothly.

Further, as described above, since the pipe holding portion 4 is wound around the pipes 13 and 13 with the rubber cushion material 3 interposed therebetween, the pipes 13 and 1 are
Even when the coating 3 is made of fluororesin or the like, the fixture 1 can be firmly fixed to the pipes 13 and 13 without damaging the resin coating.

Further, since ribs 10, 10 protruding outward are formed at both widthwise ends of the rubber cushion member 3 mounted on the inner peripheral surface of the pipe holding portion 4, the rib 1 is formed.
0 and 10 serve as a stopper for preventing the rubber cushion material 3 from being displaced from the pipe holding portion 4, and the winding of the pipe holding portion 4 around the pipes 13 and 13 causes the rubber cushion material 3 to be inserted between them. It is done with certain intervention.

Next, as shown in FIG.
The mounting portion 5 of the pipe mounting tool 1, which is firmly fixed in a bundled state, is attached to the vehicle body side (not shown) by a bolt 14 through a bolt insertion hole 9 formed in the mounting portion 5.

At this time, the pipe mounting portion 5 is bent downward at its base portion 5a so that the mounting portion 5b serving as a mounting surface is arranged at a position lower than the bottom surface 4a of the pipe holding portion 4 by one step. Therefore, the pipes 13, 13 attached to the vehicle body side by the pipe fitting 1 do not directly contact the vehicle body side as shown in FIG. 4 or FIG.
Vibrations on the vehicle body side transmitted to 3, 3 are weakened, and there is no damage to the surface treatment such as fluororesin coating on the pipes 13, 13 due to contact with the vehicle body side.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment,
Various modifications and variations are possible based on the technical idea of the present invention.

For example, in the above embodiment, the present invention has been described as a fixture for fixing two oil pipes 13 for power steering of an automobile to the vehicle body side in a bundled state, but the present invention is such a pipe. It can be used not only as a mounting tool for other automobiles, but also for other automobile pipes, home appliance pipes, or pipes used in industrial machines. The number of pipes to be attached is also limited to two. is not.

[0027]

According to the pipe fitting according to the present invention described above, a pipe fitting in which a rubber cushion material is preliminarily attached to the inner peripheral surface of the pipe holding portion is bent into a U shape. Therefore, there is an effect that the fitting for the pipe can be fixed at an arbitrary position of the pipe with the rubber cushion material interposed. Further, the rubber cushion material is attached to the pipe holding portion by fitting a projection formed near the center of the outer peripheral surface into a hole formed in the bottom surface of the pipe holding portion. It is easier to mount than adhesive and other means, and the rubber cushion material is fixed to the pipe clamping part only near its center, so it can be easily used to fix pipes with different pipe diameters. There is an effective effect. Furthermore, on the inner and outer surfaces of both side walls of the U-shaped pipe holding portion wound around the pipe,
Since a plurality of convex stripes or concave stripes are formed, when the side wall is crimped, slippage with the crimping machine can be prevented, and slippage of the rubber cushion material mounted on the inner peripheral surface of the pipe holding portion can be prevented. In addition, the ribs formed at both ends in the width direction of the rubber cushion material serve as stoppers for preventing the rubber cushion material from being displaced from the pipe holding portion, and the rubber cushion material to be fixed to the pipe is fixed. There is an effect that the pipe is clamped and the winding is smoothly performed by crimping.

Also, according to the pipe fitting of the present invention, the rubber cushion material is extended laterally from the bottom surface of the pipe holding portion, and is bent downward at the base thereof. Since the mounting surface has the L-shaped pipe mounting portion arranged at a position lower than the bottom surface of the pipe holding portion by one step, the pipe attached to, for example, an automobile by the attachment is floated from the automobile side. Since it will be attached by the mounting tool in such a state that it does not come into direct contact with the automobile, vibration of the automobile side transmitted to the pipe is weakened and the pipe is coated with fluororesin or the like. Even if there is, there is an effect that the resin coating is not damaged by contact with the automobile side.

Further, according to the present invention, as described above, since the pipe clamping portion made of sheet metal is wound around the pipe by caulking through the rubber cushion material and the pipe is fixed to the fitting, The fixing work is simpler than brazing, and like the brazing structure, even when it is used, for example, for mounting pipes on an automobile, it sufficiently withstands the vibration and the mounting tool Even when the pipe to be attached and used is coated with a fluororesin or the like, the pipe can be fixed to the fixture without damaging the resin coating.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a pipe fitting according to the present invention.

FIG. 2 is a perspective view of an embodiment of a fitting for piping according to the present invention.

FIG. 3 is a perspective view showing a state in which a pipe is fixed by using an embodiment of a pipe fitting according to the present invention.

4 is a sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

FIG. 6 is a perspective view showing a conventional fitting for piping.

FIG. 7 is a perspective view showing a state in which a pipe is fixed using a conventional pipe fitting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe fitting 2 Sheet metal fittings 3 Rubber cushion material 4 Pipe gripping part 4a Pipe gripping part bottom surface 4b Pipe gripping part sidewall 5 Pipe mounting part 5a Pipe mounting part base 5b Pipe mounting part mounting part 6 Convex 7 Recessed streak 8 hole 9 Bolt insertion hole 10 Rib 11 Convex streak 12 Protrusion 13 Piping 14 Bolt

Claims (1)

[Scope of utility model registration request] 1. A is bent into a U-shape, have a plurality of projections or concave on the inner and outer surfaces of the side walls, and a hole on its bottom surface puncture
An installed pipe clamping portion, and a pipe extending laterally from the bottom surface of the pipe clamping portion and bent downward at the base thereof.
The mounting surface has dropped from the bottom of the pipe clamping part.
A sheet metal fitting having an L-shaped pipe mounting portion arranged at a position, and an inner peripheral surface of the pipe holding portion of the sheet metal fitting ,
In the hole drilled in the bottom surface of the pipe holding part, the outer peripheral surface center
It has a length that is almost the same as the inner peripheral wall of the pipe holding part, which is attached by inserting a protrusion formed in the vicinity.
However, the width has a width slightly wider than the above-mentioned pipe clamping portion,
Ribs protruding toward the outer peripheral surface are formed at both ends in the width direction.
And a rubber cushion material, wherein the rubber cushion material is attached to one or a plurality of pipes inserted into the pipe clamping portion by caulking both side walls of the pipe clamping portion. winding through, fitting pipes, characterized in that so as to fix the pipe to the fitting.