JPH11190462A - Piping clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect long piping to piping on the vehicle fixing side without worsening assembly workability of piping. SOLUTION: The insertion clamp 10 is formed approximately in a U-shape one side of which is opened. This constitution facilitates insertion of a stud bolt 23 in an insertion hole from the opening side of the insertion hole, whereby after the long piping 20 is connected to the fixing side 21, the piping clamp 10 is fixed at a vehicle. Thus, the two pipings 20 and 21 are interconnected with assembly ability of the long piping 20 to the vehicle improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe clamp for fixing a long pipe to a fixing portion, and is effective when applied to a clamp for fixing a pipe of a vehicle air conditioner to a vehicle.

[0002]

2. Description of the Related Art Generally, a procedure for fixing a pipe to a vehicle is as follows (see FIG. 3). That is, the pipe clamp 10 is attached to the long pipe 20, and the pipe clamp 10
The vehicle-side stat bolt 23 is inserted into the insertion hole 12 formed in
And temporarily tighten a nut to the stat bolt 23.

[0003] Then, a fixed side pipe 2 fixed to the vehicle side.
After connecting the long pipe 20 fixed to the pipe clamp 10 with the 1, the nut temporarily tightened earlier is tightened to a specified torque.

[0004]

By the way, in the above-mentioned pipe fixing method, the displacement (dimension variation) of the stud bolt, the fixed-side pipe, and the like is absorbed by using the bending of the long pipe, so that the position of the pipe is fixed. When the displacement is large, the displacement cannot be absorbed only by the bending of the long pipe, and there is a possibility that both pipes cannot be connected.

[0005] To solve this problem, it is conceivable to fix the pipe clamp to the vehicle with bolts after connecting both pipes. In this means, a bolt for fixing the pipe clamp to the vehicle is provided on the vehicle side. In addition, there is a possibility that the bolt insertion hole may not be able to be inserted into the hole, and the bolt insertion hole on the vehicle side cannot be seen by an operator, which causes a new problem that the assembling workability is deteriorated.

The long pipe means a pipe whose longitudinal dimension is sufficiently longer than the diameter of the pipe. In view of the above, an object of the present invention is to connect pipes without deteriorating the workability of assembling the pipes.

[0007]

The present invention uses the following technical means to achieve the above object. Claim 1,
According to the second aspect of the present invention, the insertion hole (12) of the clamp body (10a) is formed by a substantially U-shaped cutout portion that is open on one side.

Thus, the fixing projection (2) is formed from the opening side.
3) can be easily inserted into the insertion hole (12). As described later, the pipe clamp (20) is connected to the pipe (21) fixed to the fixing section, and then the pipe clamp is connected to the fixing section. Can be fixed. Therefore, both pipes (2
0, 21) can be reliably connected. Further, since the fixing projection (23) can be easily inserted into the insertion hole (12), the ease of assembling the pipe (20) to the vehicle can be improved.

As described above, according to the present invention, pipes can be connected without deteriorating the workability of assembling the pipes. According to the second aspect of the present invention, the opening width of the insertion hole (12) increases toward the opening side.
Is characterized in that an inclined portion (12a) is formed so as to expand. Accordingly, even if the fixing protrusion (23) is displaced in the direction of the opening width (w) with respect to the pipe clamp, the displacement can be easily absorbed.

According to the third aspect of the present invention, the pipe (20) is fixed to the pipe clamp (10) having an insertion hole (12) which is open at one side and is cut out in a substantially U-shape. With the pipe (20) fixed to 10), the fixed-side pipe (21) and the pipe (20), which are fixed parts, are connected, and the fixed-side pipe (21) and the pipe (20) are connected. Then, the fixing projection (23) is inserted into the insertion hole (12) to fix the pipe clamp (10) to the fixing portion.

As a result, the pipes can be connected without deteriorating the workability of assembling the pipes, similarly to the first and second aspects of the invention. In addition, the code | symbol in the parenthesis of each said means shows the correspondence with the concrete means of embodiment mentioned later.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In this embodiment, a piping clamp 10 according to the present invention is applied to a so-called one-box vehicle air conditioner. In FIG. 1, reference numeral 20 denotes a long pipe through which the refrigerant flows (hereinafter, this pipe is referred to as a long pipe).
In this embodiment, these long pipes 20 are disposed under the floor of the vehicle, in the engine room or in the room.

Reference numeral 21 denotes a fixed-side pipe fixed to the vehicle (fixed portion) side, and both pipes 20 and 21 are connected via a connection block 22. Reference numeral 23 denotes a stud bolt (fixing projection) fixed to the vehicle, and reference numeral 24 denotes a nut inserted into the stud bolt 23. 10
2 is a pipe clamp for fixing the long pipe 20 to the stud bolt 23.
As shown in the figure, the holding section 1 for holding and fixing the long pipe 20
1, and the insertion hole 12 into which the stat bolt 23 is inserted
Are formed integrally with a resin clamp body 10a. Since the holding portion 11 holds the long pipe 20 so as to sandwich the pipe, the clamp body 10a
Can slide with respect to the long pipe 20.

The insertion hole 12 is formed by a substantially U-shaped notch having one side opened.
A chamfered portion (inclined portion) 12a whose opening width w increases toward the opening side is formed on the opening side. Here, a method of fixing a pipe using the pipe clamp 10 according to the present embodiment will be described in the order of steps.

First, two long pipes 20 are inserted into the holding portion 11 and the long pipes 20 are fixed to the pipe clamp 10 (a pipe assembly step). Next, the two pipes 20, 21 are connected (connection step), and the clamp body 10a is connected to the long pipe 20.
After inserting the stat bolt 23 into the insertion hole 12 by sliding (sliding) with respect to
To the specified torque (fixing process).

Next, features of the present embodiment will be described. Since the pipe clamp 10 according to the present embodiment has the insertion hole 12 opened on one side, the stat bolt 23 can be easily inserted into the insertion hole 12 from the opening side.
Therefore, the pipe clamp 10 can be fixed to the vehicle after connecting the two pipes 20, 21 as described above, so that the two pipes 20, 21 can be reliably connected.

Further, since the stat bolt 23 can be easily inserted into the insertion hole 12, the long pipe 20 can be easily attached to the vehicle. As described above, according to the present embodiment, the two pipes 20 and 21 can be connected without deteriorating the workability of assembling the pipes. In the present embodiment, the pipe clamp 10 is substantially U-shaped.
Since it is a simple means such as forming the V-shaped insertion hole 12, the stat bolt 23 conventionally provided on the vehicle side can be diverted as it is, and the manufacturing tolerance of the stat bolt 23 and the fixed side pipe 21 is reduced. Both pipes 20, 21 can be connected without being strict (small).

A chamfered portion 12 is formed on the opening side of the insertion hole 12.
Since a is formed, even if the stud bolt 23 is shifted with respect to the pipe clamp 10 in the direction of the opening width w, the shift can be easily absorbed. Further, since the plurality of long pipes 20 are fixed to the pipe clamp 10 before the long pipe 20 is fixed to the vehicle, the long pipe 20 and the pipe clamp 10 can be handled as one pipe assembly. , These transporting properties can be improved.

Incidentally, the shape of the insertion hole 12 is not strictly limited to a U-shape, but includes other shapes such as a substantially V-shape. Further, the application of the present invention is not limited to an air conditioner for a vehicle, and the present invention can also be applied to fixing other pipes such as a pipe of a home air conditioner.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a fixed state of a long pipe.

FIG. 2 is a perspective view of a piping clamp according to the embodiment of the present invention.

FIG. 3 is a perspective view showing a fixed state of a long pipe according to a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... piping clamp, 11 ... holding | maintenance part, 12 ... insertion hole 20 ... piping, 21 ... fixed side piping, 23 ... stat bolt (fixing projection).

Claims (3)

[Claims] 1. A pipe clamp for fixing an elongated pipe (20) to a fixing projection (23) provided on a fixing section, the holding section holding and fixing the pipe (20). 11) and an insertion hole (1) into which the fixing portion protrusion (23) is inserted.
2) having a clamp body (10a) formed therein, and the insertion hole (12) is substantially U-shaped with one side opened.
A pipe clamp characterized by being formed by a letter-shaped notch. 2. An inclined portion (12) whose opening width (w) increases toward the opening side of the insertion hole (12).
The pipe clamp according to claim 1, wherein a) is formed. 3. A pipe fixing method for fixing a long pipe (20) to a fixing projection (23) provided on a fixing part, wherein one side is opened and cut out in a substantially U-shape. Insertion hole (1
2) The pipe (20) is fixed to the pipe clamp (10) formed with the pipe clamp (10), and the pipe (20) is fixed to the pipe clamp (10), and the fixed pipe is fixed to the fixing section. (21)
And the pipe (20), and the fixed side pipe (21) and the pipe (20) are connected, and the fixing projection (2) is inserted into the insertion hole (12).
3) A method for fixing a pipe, comprising inserting the pipe clamp (10) into the fixing portion by inserting the pipe clamp.