JPH1019016A - Clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability and safety, and reduce costs at the time when a waterproof and dustproof clamp is assembled. SOLUTION: A clamp 10 is formed of an engagingly locking part 12 and a holding part 11, the engagingly locking part 12 is made up of an engagingly locking part core 13 and a grommet part 14 fixed on the surface of the engagingly locking part core 13 so that it covers the surface of the engagingly locking part core 13, the engagingly locking part core 13 is formed on the outer surface 11b of the holding part 11, the holding part 11 can hold an object 20 to be held, the grommet part 14 is formed of a material, the hardness of which is softer than that of the engagingly locking part core 13, and the grommet part 14 can be engaged with a hole 31 so that it plugs up the hole 31 of a mounting place 30. Further, a groove 14d capable of being engaged with the hole 31 of the mounting place 30 is formed on the outer surface 14c of the grommet part 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp for use in automobiles and the like, and more particularly to a clamp for improving workability and safety in an assembling process.

[0002]

2. Description of the Related Art Conventionally, a clamp for fixing a wire harness or the like to a floor panel of an automobile has been used.
In this case, if a clamp hole is formed in the floor panel,
Since water and dust penetrate into the cabin through these holes, it is not appropriate to form holes in the floor panel from the viewpoint of waterproofing and dustproofing. Therefore, stud bolts and brackets are arranged on the floor panel, clamps are fixed by the stud bolts and brackets, and the wire harness is held by the clamps.

FIG. 3 shows a state in which the above-mentioned conventional clamp is not assembled, and FIG. 4 shows a state in which the conventional example is assembled.
In FIG. 3, the clamp 40 includes a base 41 and the base 41.
The hole 41 a is formed in the base 41. The winding part 42 can be wound around the wire harness 50. The head 62 of the stud bolt 61 is welded to the floor panel 60. The male screw 63 of the stud bolt 61 can be screwed into the hole 41a of the clamp 40. In FIG. 4, the winding portion 42 is wound around the wire harness 50 and the stud bolt 6
One male screw 63 is screwed into the hole 41 a of the base 41. Thus, the wire harness 50 is fixed to the floor panel 60 by the clamp 40.

[0004]

However, in the conventional example described above, the head 6 of the stud bolt 61 is used to fix the wire harness 50 to the floor panel 60.
2 is added to the floor panel 60, so that the number of necessary parts is increased, a welding device and a jig are required, the cost is increased, and a projection (stud bolt 61) is formed from the floor panel 60. ) Is formed,
There is a drawback that it is dangerous when working indoors of a car.
Accordingly, it is an object of the present invention to provide a clamp that eliminates the above-mentioned disadvantages of the conventional example, improves workability and safety during assembly, reduces costs, and has waterproof and dustproof properties.

[0005]

According to a first aspect of the present invention, a locking portion and a holding portion are formed, and the locking portion includes a locking portion core and a locking portion. A grommet portion fixed to the surface of the locking portion core so as to cover the surface of the core; the locking portion core is formed on the outer surface of the holding portion, and the holding portion holds the held object The grommet part is formed of a material having a hardness lower than that of the locking part core material, and the grommet part can be engaged with the hole so as to close the hole at the mounting location. .

According to the first aspect of the invention, the grommet portion of the locking portion, which is fixed to the surface of the locking portion core so as to cover the surface of the locking portion core, includes the locking portion core. Since it is formed of a material having a softer hardness and can be engaged with the hole so as to close the hole at the mounting point, it is possible to prevent water and dust from passing through the hole at the mounting point where the gutmet portion is engaged. it can. Furthermore, in order to fix the clamp to the mounting location such as the floor panel, the stud bolt like the conventional example,
Since a bracket or the like is not required, the number of required parts is reduced.
Further, since there is no need to form projections such as stud bolts and brackets at clamp mounting points such as floor panels, work in a vehicle cabin or the like becomes safe. The holding unit holds (clamps) an object to be held (for example, a wire harness).

A second aspect of the present invention is that, in the first aspect, a groove is formed on an outer surface of the grommet portion so as to be engageable with a hole at a mounting location.

[0008] With the configuration of the second aspect of the invention, it is possible to form an optimal structure for implementing the function of the first aspect of the invention together with the action of the first aspect of the invention. That is, the groove formed on the outer surface of the grommet portion can easily engage with the hole of the floor panel, and can close the hole when engaged.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the present invention before being assembled, and FIG. 2 is a sectional view of the assembled state of the embodiment. 1 and 2, the clamp 10 is made of a synthetic resin and includes a holding portion 11 and a locking portion 12. The inside of the concave portion 11c surrounded by the inner surface 11a of the holding portion 11 is wider than the end. The holding portion 11 that performs a clamping action can clamp the wire harness 20. The holding portion 11 can temporarily expand when holding the wire harness 20 because of the elasticity of the holding portion 11. The material of the holding portion 11 is, for example, polypropylene. The locking portion 12 includes a locking portion core 13 and a grommet portion 14, and the locking portion core 13 is formed integrally with an outer surface 11 b of the holding portion 11. The protrusion 13a of the locking core 13 is engaged with a recess 14b on the inner surface 14a of the grommet portion 14. A groove 14d formed on the outer surface 14c of the grommet portion 14 can be engaged with the hole 31 of the floor panel 30. The grommet part 14 is formed integrally with the locking part core material 13, and the material of the grommet part 14 is, for example, an elastomer resin, and its Shore hardness is 40 ° to 70 °.
°.

In FIG. 2, first, a wire harness 2
0 is clamped to the holding portion 11, and then the grommet portion 14 is engaged with the hole 31 of the floor panel 30. In this state, the grommet portion 14 completely covers the hole 31. Further, in the state where the grommet portion 14 covers the hole 31, the portion of the grommet portion 14 on the tip side from the groove 14 d expands, so that the engagement between the grommet portion 14 and the hole 31 and the contact with the surface are ensured. Thus, the wire harness 20 is fixed to the floor panel 30 by the clamp 10.

With the above construction, the grommet portion 14 fixed to the surface of the locking portion core 13 so as to cover the surface of the locking portion core 13 of the locking portion 12 is attached to the locking portion core 13. The hole 31 is formed of a material having a softer hardness, and covers the hole 31 of the floor panel 30 as an attachment portion.
Can be prevented from passing through water or dust through the hole 31 at the mounting point where the gutmet portion 14 is engaged. Further, since the clamp 10 is fixed to a mounting portion such as the floor panel 30, a stud bolt, a bracket, and the like as in the conventional example are not required, so that the number of necessary components is reduced. Further, since it is not necessary to form projections such as stud bolts and brackets at the clamp mounting portions of the floor panel 30 and the like, the work in the vehicle interior and the like becomes safe.

Further, the groove 14d formed on the outer surface 14c of the grommet portion 14 can easily engage with the hole 31 of the floor panel 30, and can close the hole 31 when engaged. In the above-described embodiment, the groove 14d is formed on the outer surface 14c of the grommet portion 14. However, the present invention is not limited to this. 14 may be formed on the outer surface 14c. By doing so, the grommet portion 14 engaged with the hole 31 can close the hole 31.

[0013]

According to the first aspect of the present invention, when the grommet portion of the locking portion of the clamp is engaged with the hole of the mounting portion such as a floor panel, the hole can be closed, so that the hole can be closed. Water and dust can be prevented from passing through. For this reason, the clamp mounting portion can have a waterproof / dustproof structure. Furthermore, when fixing a wire harness, etc. with a clamp, there is no need for protrusions such as stud bolts and brackets, so clamp installation work is easy, cost is reduced, and work in the vehicle compartment etc. is safe. Become.
Further, according to the second invention, together with the effect of the first invention, the groove formed on the outer surface of the grommet portion engages with the hole so as to close the hole of the floor panel or the like.
It is possible to form an optimal structure for carrying out the invention of (1).

[Brief description of the drawings]

FIG. 1 is a perspective view of a state before assembly according to an embodiment of the present invention.

FIG. 2 is a sectional view of the assembled state of the embodiment.

FIG. 3 is a perspective view of a conventional example before assembly.

FIG. 4 is a sectional view of the conventional example in an assembled state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Clamp 11 Holding part 12 Lock part 13 Lock part core material 14 Grommet part 14c Outer surface of grommet part 14d Groove 20 Wire harness 30 Floor panel 31 Hole

Claims (2)

[Claims] A grommet formed with a locking portion and a holding portion, and fixed to a surface of the locking portion core so that the locking portion covers the locking portion core and a surface of the locking portion core; The locking part core is formed on the outer surface of the holding part, the holding part is capable of holding an object to be held, and the grommet part is formed of a material whose hardness is softer than the locking part core. The grommet portion is engageable with the hole so as to close the hole at the attachment point. 2. A groove formed on an outer surface of the grommet portion so as to be able to engage with a hole at a mounting location.
The described clamp.