JP3403626B2 - Bolt clamp - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt clamp that has a binding band of a wire harness for an automobile integrally and is fixed to the stud bolt by being fitted and inserted into the stud bolt.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional bolt clamp 1 similar to that disclosed in Japanese Utility Model Laid-Open No. 61-52710.

In this clamp 1, a binding body 4 for a wire harness is integrally provided on a clamp body 3 having a locking cylinder 2. The binding band 4 includes a flexible band 5 wound around the wire harness and a locking portion 6 that inserts and locks the tip of the flexible band 5 wound in a loop shape.

The locking cylinder 2 is fitted and locked in a threaded portion 9 of a stud bolt 8 projecting from the inner wall surface 7a of the vehicle body panel 7 to the inside of the vehicle. It has a locking claw 11 to be bitten. A soundproof material (silencer) 12 is attached to the inner wall surface 7 a of the vehicle body panel 7. In the figure, A indicates the outside where the noise source exists, and B indicates the inside of the vehicle.

In this clamp 1, the tip of the locking claw 11 is inserted into the threaded portion 9 of the stud bolt 8 to allow the locking claw 1 to be inserted.
1 is engaged with the groove 10 of the threaded portion 9 and fixed to the stud bolt 8.

[0006]

However, when the stud bolt 8 is fitted into the locking cylinder 2, the locking cylinder 2 is fitted into the stud bolt 8 only halfway, as shown in FIG. 5 (a). Otherwise, a gap 13 is formed between the soundproof member 12 and the noise enters the inside B of the vehicle along the route indicated by the arrow C from the gap 13, so that the soundproof performance at this portion is deteriorated.

Contrary to the above, as shown in FIG. 5B, when the stud bolt 8 is excessively inserted into the locking cylinder 2, the end surface of the locking cylinder 2 compresses the soundproof material 12. Since the soundproof material 12 is excessively bent, the original function of the soundproof material 12 is deteriorated, and noise penetrates into the vehicle interior B side along the route shown by the arrow b, so that the soundproof performance at this portion is deteriorated.

Therefore, when the stud bolt 8 is inserted into the locking cylinder 2, there is a problem that the soundproof performance is deteriorated unless the stud bolt 8 is inserted into an optimum position.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a bolt clamp that can determine the position where the stud bolt is inserted into the locking cylinder and can be positioned with respect to the stud bolt and the soundproof material of the clamp.

[0010]

In order to achieve the above object, the invention of claim 1 fits a threaded portion of a stud bolt which can hold another member and which projects from a wall surface on which the other member is to be fixed. In the bolt fixing clamp that is fixed to the stud bolt by being inserted, the locking cylinder that is locked to the threaded portion by covering the outer periphery of the threaded portion of the stud bolt and the rod-shaped locking cylinder Straight side opening
A stopper that abuts on the tip of a stud bolt that spans a span and is inserted into the locking cylinder and determines the insertion position of the stud bolt into the locking cylinder, and closes the opening on one side of the locking cylinder. It is characterized by having a soundproof cap.

In this bolt clamp, the locking cylinder is fitted into the stud bolt until the tip of the stud bolt abuts. Next, a soundproof cap closes the opening on one side of the locking cylinder. In this state, the tip of the stud bolt comes into contact with the stopper to position the clamp with respect to the stud bolt and the soundproof material, and the locking cylinder comes into contact with the soundproof material around the stud bolt with an appropriate pressing force. Therefore, optimum soundproofing effect can be obtained. Further, since the stopper provided in the opening on one side of the locking cylinder is rod-shaped and spans between the diameters, a gap is formed on both sides of the stopper. Therefore, when the clamp is removed from the stud bolt, the locked state of the locking portion of the locking cylinder locked to the screw portion can be easily removed from this gap.

The invention of claim 2 is the bolt according to claim 1.
Clamp for use with a soundproof material provided on the wall surface.
The stud bolt is inserted through the soundproof material of
The end surface of the other opening of the stop cylinder presses the soundproof material and makes close contact
It is characterized by doing.

In this bolt clamp, since the end surface of the other opening of the locking cylinder presses the soundproof material to come into close contact with it.
It is possible to reduce the intrusion of noise from between the soundproof material and the locking cylinder.

[0014]

[0015]

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a bolt clamp according to the present invention will be described below.

The bolt clamp 20 of this embodiment is entirely made of a resin integrally molded product, and is engaged with the threaded portion 22 of the stud bolt 21 by being covered with it. The tube 23 and the insertion position of the stud bolt 21 into the locking tube 23 by coming into contact with the tip 25 of the stud bolt 21 provided in the opening 24 on one side of the locking tube 23 and inserted into the locking tube 23. Stopper 26
And the soundproof cap 2 that closes the opening 24 on one side of the locking cylinder 23.
7 and 7. In addition, in the locking cylinder 23, a binding band 28 of the wire harness and a loop-shaped binding band 28
Is integrally provided with a locking portion 29 for locking.

The locking cylinder 23 is formed on the inner wall surface 3 of the vehicle body panel 30.
0a has a cylindrical shape that is locked to the threaded portion 22 of the stud bolt 21 that protrudes inward from the vehicle. The elastic member that engages with the groove 31 of the threaded portion 22 on the inner peripheral surface thereof. A stop claw 32 is provided. The rod-shaped stopper 26 is provided in the opening 24 on one side (upper side) of the locking cylinder 23 along the diametrical direction, and the stopper 26 has semicircular openings 33 on both sides. The stopper 26 is
Tip 2 of the stat bolt 21 inserted in the locking cylinder 23
5 is abutted to determine the insertion position of the stud bolt 21 into the locking cylinder 23.

In this case, the tip 25 of the stud bolt 21
2, the edge portion 35 of the other opening 34 of the locking cylinder 23 comes into close contact with the soundproof material 36 with a predetermined pressing force, as shown in FIG. Stopper 2 so that it abuts in the optimal state with the best effect
Position 6 is set.

Semicircular openings 33 on both sides of the stopper 26,
33 is closed by a soundproof cap 27 that closes one opening 24 of the locking cylinder 23. The soundproof cap 27 includes a disc-shaped lid portion 37 and the locking tube 23 that is hung from the lid portion 37.
Pair of leg portions 38, 38 to be inserted on the inner peripheral side of the pair, and locking pieces 39, 3 provided between the pair of leg portions 38, 38.
9 and 9. The locking piece 39 is provided with a rectangular locking hole 40, and the soundproof cap 27 is attached to the locking cylinder 23 by engaging a locking protrusion 41 provided on the outer periphery of the locking cylinder 23. In addition, a concave groove 42 for accommodating the stopper 26 is provided on the back surface side of the lid portion 37 along the diametrical direction.

When the wire harness is fixed to the vehicle body panel 30 using the bolt clamp 20, the wire harness is first bound by the binding band 28. Then, in this state, the screw portion 22 of the stud bolt 21 is inserted into the other opening 34 of the locking cylinder 23. At this time, the stud bolt 21 is fitted into the locking cylinder 23 until the tip 25 of the stud bolt 21 contacts the stopper 26. The tip 25 of the stud bolt 21 has a stopper 26.
After abutting against, the soundproof cap 27 closes one opening 24 of the locking cylinder 23.

As a result, the clamp 20 is fixed to the stud bolt 21. At this time, since the edge portion 35 of the other opening 34 of the locking cylinder 23 is in close contact with the soundproof material 36 while the soundproof material 36 is appropriately bent, the edge of the soundproof material 36 and the other opening 34 of the locking cylinder 23 is in contact. There is no gap between the part 35 and the sound from the outside A of the vehicle does not leak to the inside B side, and the optimum sound insulation effect is obtained.

Further, according to the present embodiment, since the insertion position of the stud bolt 21 into the locking cylinder 23 is determined by the stopper 26, the stud bolt 21 can only be inserted into the locking cylinder 23 halfway. Optimal fitting can be performed without causing excessive fitting or fitting. As a result, no gap is created between the soundproof material 36 and the locking cylinder 23, or the original soundproof performance is not deteriorated due to excessive bending of the soundproof material 36.

Further, the stopper 26 of this embodiment is formed in a rod shape along the diameter direction of one opening 24 of the locking cylinder 23, and semicircular openings 33, 3 are formed on both sides of the stopper 26.
Since 3 is provided, when removing the locking claw 32 in the locking cylinder 23 from the groove 31 of the screw portion 22, it is possible to easily remove it from the openings 33, 33.

Further, the locking claw 3 is provided through the openings 33, 33.
It is possible to easily confirm whether or not the screws 2 and 32 are surely engaged with the groove 31 of the screw portion 22.

[0026]

As described above, according to the first aspect of the present invention, the tip of the stud bolt abuts on the stopper, whereby the clamp is positioned with respect to the stud bolt and the soundproof material, and the locking cylinder is provided with the stud bolt. Since it is in contact with the soundproofing material in the peripheral portion with an appropriate pressing force, the optimum soundproofing effect can be obtained. In addition, since the stopper provided in the opening on one side of the locking cylinder is rod-shaped and hangs between the diameters, a gap is formed on both sides of the stopper, and when the clamp is removed from the stud bolt, it is locked to the screw part. The locked state of the locking portion of the locking cylinder can be easily removed from this gap.

According to the second aspect of the present invention, since the end surface of the other opening of the locking cylinder presses the soundproof material into close contact with the soundproof material, noise is prevented from entering between the soundproof material and the locking cylinder. It can be reduced.

[0028]

[Brief description of drawings]

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

FIG. 2 is a sectional view showing a bolt clamp according to an embodiment of the present invention.

FIG. 3 shows a procedure for inserting a stud bolt into a locking cylinder, (a) is a cross-sectional view showing a state before the stud bolt is inserted into the locking cylinder, and (b) is a stopper of the tip of the stud bolt. Is a cross-sectional view showing a state in which the locking cylinder is brought into contact with, and (c) is a cross-sectional view showing a state in which one opening of the locking cylinder is closed by a soundproof cap.

FIG. 4 is a sectional view showing a conventional bolt clamp.

FIG. 5 shows a conventional bolt clamp, (a) is a cross-sectional view showing a state in which a stud bolt is inserted only part way into the locking cylinder, and (b) shows an excessive stud bolt in the locking cylinder. It is sectional drawing which shows the state inserted in.

[Explanation of symbols]

20 bolt clamp 21 stud bolt 22 screw part 23 Locking cylinder 24 openings (one side) 25 tip 26 Stopper 27 Soundproof cap 30 body panel 30a inner wall

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F16B 23/00-43/02 F16L 3/08 F16B 5/00-5/12

Claims (2)

(57) [Claims] 1. A bolt fixing clamp which is capable of holding another member and which is fixed to the stud bolt by being inserted into a threaded portion of a stud bolt protruding from a wall surface on which the other member is to be fixed. It is hooked between the diameter of the locking cylinder that is locked to the threaded part by being placed on the outer circumference of the threaded part of the stud bolt, and the diameter of the opening on one side of the locking cylinder.
A stopper that abuts on the tip of a stud bolt that is bridged and inserted into the locking cylinder to determine the insertion position of the stud bolt into the locking cylinder; and a soundproof cap that closes the opening on one side of the locking cylinder. A clamp for bolts characterized by being equipped with. 2. A clamp for a bolt according to claim 1,
Soundproof material is provided on the wall surface, and this soundproof material is
The tad bolt is inserted, and the other opening of the locking cylinder is
A clamp for a bolt, characterized in that an end face presses the soundproof material and is in close contact with it .