JP4033054B2 - Piping clamp for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting structure for a vehicle piping clamp for mounting a vehicle piping to a vehicle.
[0002]
[Prior art]
Generally, the piping clamp for a vehicle has a problem of lack of versatility because the fixing structure is limited by the route of the piping to be fixed, and as a solution, a clamp mounting base is attached to a clamp holding member fixed to the vehicle sheet metal, A technique for attaching a vehicle pipe clamp on the clamp mounting base with a bolt or the like is known.
[0003]
(For example, Patent Document 1)
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-20578
[Problems to be solved by the invention]
When the clamp mounting base having the structure as in Patent Document 1 is used, there is a problem that the number of steps such as bolt assembly increases.
[0006]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle piping clamp that can be easily attached to a vehicle sheet metal.
[0007]
[Means for Solving the Problems]
In achieving the above object, the present invention focuses on a structure for mounting a clamp mounting base to a vehicle.
[0008]
The vehicle pipe clamp according to claim 1 is a clamp mounting base (10a) formed of an elastic material so as to be fixed to a clamp mounting protrusion (12) provided in the vehicle (1). And a pipe holding member (10b) attached to the vehicle (1) via the clamp mounting base (10a), and a claw structure for fixing the pipe holding member (10b) to the clamp mounting base (10a) (10c) and the flange portion (10d) is provided a plurality of stages, the pipe holding member (10b) is Ru held to be sandwiched a pair of pawl structure among a plurality of stages and (10c) in the flange portion (10d) It is characterized by that.
[0009]
As a result, the clamp mounting base (10a) can be easily attached to the vehicle sheet metal, the number of steps for assembling bolts and the like can be reduced , and the mounting position of the pipe holding member (10b) on the clamp mounting base (10a). Can be selected from the claw structure (10c) and the flange portion (10d) provided with a plurality of stages .
[0012]
Thereby, in a clamp mounting base (10a), the attachment position of a piping holding member (10b) can be selected from the fixing | fixed part (10c, 10d) provided in multiple steps.
[0013]
The vehicle piping clamp according to claim 4 is the vehicle piping clamp according to any one of claims 1 to 3, wherein the clamp mounting base (10a) has a cylindrical shape, and the inner wall thereof It has the protrusion (10f) integrally molded.
[0014]
When the clamp mounting base (10a) is attached to the clamp attachment protrusion (12), the protrusion (10f) provided on the inner wall is elastically deformed, and the clamp attachment protrusion (12) is clamped.
[0015]
As a result, the clamp mounting base (10a) can be strongly fixed by the clamp mounting protrusion (12).
[0016]
Furthermore, the vehicular piping clamp according to claim 5 is the vehicular piping clamp according to any one of claims 1 to 4, wherein the claw structure (10c) is formed integrally with the clamp mounting base (10a). and wherein the Tei Rukoto.
[0017]
Accordingly, when the pipe holding member (10b) is attached to the clamp mounting base (10a), the integrally formed claw structure (10c) is elastically deformed, and the pipe holding member (10b) is once attached to the clamp mounting base (10a). Once attached, it does not come off easily.
[0018]
In addition, the code | symbol in the parenthesis attached | subjected to each said means is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. Fig. 1 ( a ) is a schematic cross-sectional view seen from directly above the vehicle showing the outline of the vehicle to which the clamp of the present invention is applied (the front side in the vertical direction of the paper is up), and Fig. 1 ( b ) is a schematic cross-sectional view seen from the side of the vehicle. FIG.
[0020]
The vehicle 1 is a one-box type vehicle, in which a front air conditioning unit 3 is disposed in the vicinity of a front instrument panel of the passenger compartment 2, and a rear air conditioning unit 4 is disposed on the rear side vehicle body side portion in the passenger compartment 2. Yes.
[0021]
Both the air conditioning units 3 and 4 are composed of blowers 3a and 4a and a well-known refrigeration cycle.
This refrigeration cycle includes a compressor 6 that receives power from a vehicle travel engine 5 disposed at the front end of the vehicle 1, and an evaporator that is connected to the discharge side of the compressor 6 via a decompression means (expansion valve) (not shown). 3b, 4b, heater cores 3c, 4c, etc. that use engine coolant (hot water) of the vehicle running engine 5 as a heat source are connected by a high pressure refrigerant pipe 9b and a low pressure refrigerant pipe 9a, and the compressor 6 is used for vehicle running. It is driven by receiving power from the engine 6 and rotating.
[0022]
The high-pressure side refrigerant pipe 9b includes a discharge side of the compressor 6, a refrigerant inlet of the condenser 7, a refrigerant outlet of the condenser 7, a liquid receiver (not shown), and an evaporator 3b of the liquid receiver and the front air conditioning unit 3 (actually The refrigerant inlet side of the decompression means (expansion valve) (not shown) of the front air conditioning unit 3 and the evaporator 4b of the rear air conditioning unit 4 (actually, the refrigerant inlet of the decompression means (expansion valve) (not shown) of the rear air conditioning unit 4). Side).
[0023]
The low-pressure side refrigerant pipe 9 a connects the refrigerant outlet side of the evaporator 4 b of the rear air conditioning unit 4, the refrigerant outlet side of the evaporator 3 b of the front air conditioning unit 3, and the suction side of the compressor 6.
[0024]
The high-pressure side refrigerant pipe 9b and the low-pressure side refrigerant pipe 9a are held and fixed to a vehicle sheet metal 11 below the passenger compartment floor by a vehicle pipe clamp 10 described later.
[0025]
In FIG. 1, only two vehicle pipe clamps 10 are illustrated, but the vehicle pipe clamps 10 are provided at a plurality of locations of the refrigerant pipe 9.
[0026]
Next, the attachment structure to the vehicle sheet metal 11 of the refrigerant | coolant piping 9 using the piping clamp 10 for vehicles is demonstrated. 2 and 5 are views showing a state in which the vehicle piping clamp 10 is disassembled so that the configuration of the vehicle piping clamp 10 can be understood, and FIG. 3 is a side view of the assembled vehicle piping clamp 10. FIG. 4 is a view of the assembled vehicle pipe clamp 10 as viewed from directly above (the front side in the vertical direction on the page is the top).
[0027]
The vehicle piping clamp 10 includes a clamp mounting base 10a and a piping holding member 10b.
[0028]
The clamp mounting base 10a is a substantially square cylindrical member formed of a material having elasticity such as resin. A pair of projections 10f projecting toward the center side are provided on the inner walls facing each other of the clamp mounting base 10a, and a substantially triangular claw structure 10c is provided on the outer surface of each similarly facing wall. ing. Further, a flange portion 10d is provided below the claw structure 10c. (See Figure 2)
The pipe holding member 10b is made of resin or metal, and includes a flat portion 10h and a bent portion 10i. The flat surface portion 10h is provided with a fitting hole 10e for fitting the clamp mounting base 10a, and the bent portion 10i is formed with an annular ring 10g for allowing the refrigerant pipe 9 to pass therethrough.
[0029]
The clamp mounting base 10a is inserted into the fitting hole 10e of the pipe holding member 10b from the direction of the arrow (A) shown in FIGS. At this time, the inner diameter of the hole 10e for fitting is set smaller than the maximum amount of projection of the tab member 10c, according to insert the clamp mount 10a into the hole 10e of the fitting, clamp mount 10a is elastically deformed Then, the clamp mounting base 10a moves so that the inner surface of the fitting hole 10e slides on the tapered surface 10j of the claw structure 10c.
[0030]
Accordingly, the pipe holding member 10b is held so that the flat surface portion 10h is sandwiched between the flange portion 10d of the clamp mounting base 10a and the claw structure 10c. (See Figure 3)
Next, the clamp mounting base 10 a is inserted into the stud bolt 12 welded to the vehicle sheet metal 11. The stud bolt 12 is clamped by a pair of protrusions 10f formed on the inner wall of the clamp mounting base 10a, whereby the pipe clamp 10 is fixed to the stud bolt 12.
[0031]
(Effect of this embodiment)
Next, the effect of this embodiment will be described. The vehicle pipe clamp 10 is fitted into the fitting hole 10e of the pipe holding member 10b while elastically deforming the clamp mounting base 10a. And it attaches to the stud bolt 12 welded to the vehicle sheet metal 11 by pinching with a pair of protrusion 10f formed in the inner wall of the clamp mounting base 10a.
[0032]
Since the clamp mounting base 10a is molded from a material having elasticity such as resin, it can be fixed simply by fitting into the fitting hole 10e of the pipe holding member 10b and the stud bolt 12 by elastic deformation. It is easy to attach as compared with.
[0033]
In addition, if the stud bolt 12 can be welded, the vehicle piping clamp 10 can be mounted anywhere on the vehicle sheet metal 11, so the mounting position is not limited and versatility is high.
[0034]
Further, since the stud bolt 12 is firmly tightened by the pair of protrusions 10f provided integrally on the inner wall of the clamp mounting base 10a, the clamp mounting base 10a is not easily detached from the stud bolt 12.
Further, the pipe holding member 10b is held so as to be sandwiched between the substantially triangular claw structure 10c integrally provided on the outer wall of the clamp mounting base 10a and the flange portion 10d, and once clamped on the pipe holding member 10b. When the mounting base 10a is fitted, the structure does not easily come off.
[0035]
(Second Embodiment)
6 to 8 show the configuration of the second embodiment. In the first embodiment, the clamp mounting base 10a is provided with the claw structure 10c and the flange portion 10d one by one. However, in this embodiment, the claw structure 10c and the flange portion 10d are sized so as to gradually increase. In other words, a plurality of stages are provided.
[0036]
Thereby, the attachment position of the pipe holding member 10b can be adjusted in the vertical direction of the drawing by changing the size of the fitting hole 10e provided in the flat portion 10h of the pipe holding member 10b. (See Figure 8)
(Third embodiment)
9 and 10 show a third embodiment. In contrast to the first and second embodiments, the present embodiment is one in which the direction of the clamp mounting base 10a is reversed.
[0037]
Accordingly, even when the tab member 10c is broken, since the pipe holding member 10b flange portion 10d to the flat surface portion 10h abuts, never come off.
[0038]
(Fourth embodiment)
11 and 12 show the configuration of the fourth embodiment. Compared to the first to third embodiments, the flange 10d of the clamp mounting base 10a is widened and the pipe holding member 10b is attached.
[0039]
Thereby, it is possible to adjust the attachment position of the horizontal direction of the piping holding member 10b.
[0040]
(Other embodiments)
In the above embodiment, the vehicle piping clamp 10 is attached to the stud bolt 12 welded to the vehicle sheet metal 11. However, the present invention is not limited to this, and a protrusion is provided on the vehicle sheet metal 11 to provide a clamp mounting base. You may make it attach 10a. Moreover, in the said embodiment, although the clamp 10 of this invention was used in order to fix the refrigerant | coolant piping 9 of the vehicle air conditioning units 3 and 4 to the vehicle sheet metal 11, in order to fix the piping used for the other site | part of a vehicle. You may make it use. Further, the clamp 10 of the present invention may be used for fastening not only piping but also wiring and other parts.
[Brief description of the drawings]
FIG. 1A is a schematic cross-sectional view seen from directly above a vehicle showing an outline of a vehicle to which a vehicle pipe clamp of the present invention is applied. (The vertical direction on the page is up)
(B) It is the cross-sectional schematic diagram seen from the vehicle right side which shows the outline | summary of the vehicle to which the piping clamp for vehicles of this invention is applied.
FIG. 2 is an exploded view of the vehicle piping clamp so that the configuration of the vehicle piping clamp in the first embodiment can be understood.
FIG. 3 is a view of the vehicle piping clamp according to the first embodiment as viewed from the side.
FIG. 4 is a view of the vehicle piping clamp according to the first embodiment as viewed from directly above. (The vertical direction on the page is up)
FIG. 5 is an exploded perspective view of the vehicle piping clamp as seen from an oblique direction so that the configuration of the vehicle piping clamp in the first embodiment can be understood.
FIG. 6 is an exploded view of the vehicle piping clamp so that the configuration of the vehicle piping clamp in the second embodiment can be understood.
FIG. 7 is a view of the vehicle piping clamp according to the second embodiment as viewed from the side.
FIG. 8 is an exploded perspective view of a vehicular pipe clamp as seen from an oblique direction so that a configuration of the vehicular pipe clamp in the second embodiment can be understood.
FIG. 9 is an exploded view of a vehicle piping clamp so that the configuration of the vehicle piping clamp in the third embodiment can be understood.
FIG. 10 is a view of a vehicle piping clamp according to a third embodiment viewed from the side.
FIG. 11 is an exploded view of a vehicle piping clamp so that the configuration of the vehicle piping clamp in the fourth embodiment can be understood.
FIG. 12 is a view of a vehicle piping clamp according to a fourth embodiment as viewed from the side.
[Explanation of symbols]
1 ... vehicle,
2 ... Car cabin,
3. Front air conditioning unit,
4 ... Rear air conditioning unit,
5 ... Vehicle travel engine,
6 ... Compressor,
7 ... Condenser,
8 ... Floor panel,
9: Refrigerant piping,
10 ... Clamp,
10a ... clamp mounting base,
10b ... piping holding member,
10c ... nail structure,
10d: flange part,
11 ... Vehicle sheet metal,
12 ... Stud bolt.

Claims (5)

A vehicle piping clamp for supporting and fixing a pipe (9a, 9b) to a vehicle (1) ,
As can be secured to the protrusion for mounting clamps provided before Symbol vehicle (1) (12), the clamp mount formed of a material having elasticity and (10a),
A pipe holding member (10b) attached to the vehicle (1) via the clamp mounting base (10a) ,
The clamp mounting base (10a) is provided with a plurality of steps of a claw structure (10c) and a flange portion (10d) for fixing the pipe holding member (10b),
The pipe holding member (10b) is a vehicle pipe clamp, characterized in Rukoto held so as to be sandwiched between a set of said tab member (10c) and said flange portion (10d) of said plurality of stages. The claw structure (10c) and the flange portion (10d) provided in the plurality of stages are provided with different sizes so as to gradually increase toward the vehicle (1) side. The piping clamp for vehicles according to claim 1. Wherein the flange portion and the plurality of stages provided said tab member (10c) (10d), characterized in that provided by changing gradually becomes smaller as the size approaches the vehicle (1) side The piping clamp for vehicles according to claim 1 .   The clamp mounting base (10a) has a cylindrical shape, and has a projection (10f) formed integrally with the clamp mounting base (10a) on an inner wall thereof. The vehicular piping clamp according to claim 3. Said tab member (10c) is a vehicle pipe clamp according to any one of claims 1 to 4, characterized that you have been molded integrally with the clamp mount (10a).

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