JPH0733025Y2 - Clamping device for tubes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a clamp device for mounting exterior tubes such as a metal tube, a wire harness, and a remote control wire on a mating mounting surface.

[Prior Art] In this type of clamp device, as is known from Japanese Utility Model Laid-Open No. 1-108477, a clamp block, which is a main part, is provided at a mounting boss portion and at a substantially central portion of the boss portion. Mounting holes that are opened in the direction, and are installed in these mounting holes,
A fixing member that is inserted into a stud bolt projectingly provided on the panel-side mounting surface and is prevented from pulling out, a locking block integrally formed left and right from both bottoms of the boss portion, and a locking block provided on this locking block. And a plurality of clamp grooves.
Then, the tubes are elastically retained inside by being inserted into the clamp groove from one end opening. The clan block has a structure in which it is fixed to the stud bolt on the panel side without being pulled out through a fixing member mounted in the mounting hole of the boss portion.

Further, Japanese Utility Model Laid-Open No. 60-075784 discloses a structure in which a pair of locking claws is provided on the inner circumference of the mounting hole of the boss portion, and the pair of locking claws are directly retained by the stud bolt so as not to be pulled out. It is disclosed. With this clamp block, the tube can be clamped in the clamp groove while being fixed to the mating surface.
While the opening of the clamp groove is formed in the direction opposite to the mounting surface side of the boss part, spring pieces are provided on the side wall of the mounting boss and the bottom surface side of the locking block, and elastically contact with the panel side mounting surface while being fixed. I am able to do it.

[Problems to be Solved by the Invention] The clamp device having the conventional structure described above has the following problems and is not yet satisfactory in terms of manufacturing and quality.

In the former structure, the presence of the fixing member increases the number of parts and the number of assembling steps, and the panel side base of the stud bolt is an incomplete threaded portion, so the clamp block is not completely inserted into the bolt and the panel is not attached. It may be mounted in a state in which a gap is formed between the surfaces, and this portion is repeated due to vibration of the vehicle body and the like, and contact and separation are repeated, which causes a noise.

The latter structure is different from the former in that the fixing member can be omitted because it engages the stud bolt through the locking claw pair provided in the mounting hole of the boss to prevent the fixing member from being attached. In this state, the spring piece can be said to be excellent in that it can absorb a gap that tends to be generated between the spring piece and the panel-side mounting surface.

However, for example, in a state of use applied to an automobile, there is a fear that the tuples elastically held may come out from the clamp groove when a strong impact such as collision vibration is received. In such a structure, the tube is inadvertently pulled out regardless of the structure. In the clamp groove, the tube is pushed into the groove while deforming the elastic piece on the groove opening side to elastically hold the tube. Wake up more or less. Moreover, in such a tube holding structure, the longer the elastic piece, the more difficult it is for the tubes to come off, but the longer the elastic piece, the greater the force required to push the tubes into the clamp groove, and the workability is improved. This will cause problems.

This invention solves all of the above points, prevents noise and tube resonance when the clamp block is engaged and fixed to the mating mounting surface, and prevents the tube from being unintentionally pulled out. It is an object of the present invention to provide a tube clamp device that can be structurally eliminated.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a clamp block 1 as shown in an embodiment in which a mounting boss portion 2 and a substantially central portion of the boss portion 2 are provided in a vertical direction. Both sides of the boss portion 2 and an attachment hole 5 that is formed in an opening in a direction and is inserted into a bolt B protruding from the mating attachment surface P and engaged with a thread portion of the bolt B to prevent the bolt B from coming off. By inserting the locking block 3 integrally formed in a substantially L-shape from the bottom to the left and right and the locking block 3 and the mounting boss 2 and inserting the outer periphery of the tube TU from one end opening. In a tube clamp device including a plurality of elastically clampable clamp grooves (4), an upper plate surface (2a) of the boss portion (2) facing the mating mounting surface (P) is connected to one end opening of the clamp groove (4). Set in the same direction and lock While the lock 3 is provided lower than the protrusion amount, a pair of elastic tongues 6 are formed on the upper plate surface 2a on opposite sides of the mounting hole 5 so as to be diagonally raised in opposite directions. The crank block 1 in which the tube TU is sandwiched in the clamp groove 4 is engaged and fixed to the bolt B of the mating mounting surface P through the mounting hole 5 of the boss portion 2, The pair of elastic tongues 6 are elastically contacted with the mounting surface P, and the one end opening of the clamp groove 4 is brought close to the extent to prevent the tube TU from being accidentally pulled out.

[Operation] According to the above configuration, the elastic tongue comes into contact with the mating mounting surface while the clamp block is fixed to the mating mounting surface by the engagement of the bolt and the mounting hole, and the mounting surface and the clamp block Eliminate the gap between and.

In addition, since the one end opening of the clamp groove is close to the mating side mounting surface to the extent that it can prevent the tube from accidentally coming out, even if the tube is subjected to collision vibration during use, the tube will not move from inside the clamp groove. There is no omission.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

1 to 5, a clamp block 1 made of a plastic injection-molded pair forms a locking block 3 which is integrated in an L shape from the bottom of a mounting boss 2 to the left and right. A clamp groove 4 is provided between the boss portion 2 and the boss portion 2.

The boss portion 2 has a hollow prismatic shape, and an upper plate surface 2a at the center thereof and a mounting hole 5 are formed in the bottom portion thereof, and the stud bolt B is provided on the body panel P which is the mating mounting surface.
The clamp block 1 is fixed to the surface of the vehicle body panel P by being inserted into the. The top plate surface
2a is set in the same direction as the one end opening of the clamp groove 4,
It is provided lower than the protruding amount of the locking block 3.

On the upper plate surface 2a of the boss portion 2, a pair of elastic tongues 6 which are parallel to each other with the mounting hole 5 interposed and one end of which is connected to the upper plate surface 2a are formed so as to be diagonally raised in opposite directions. There is.

When the clamp block 1 is fixed to the panel P, the mounting base side of the bolt B with respect to the panel P is an incomplete threaded portion. As a result, even if a gap is generated between the clamp block 1 and the panel P, each elastic tongue is Piece 6 is panel P
By making elastic contact with the surface of the panel P, the contact state with the panel P can be secured, and the generation of noise due to the gap can be prevented in advance. Further, in the use state in which the clamp block 1 holds the tube TU and is fixed to the panel P,
The upper plate surface 2a is provided lower than the protruding amount of the locking block 3 as shown in FIGS. 1 and 4, one end of the clamp groove 4 approaches the panel P, and the tube TU is not prepared. Structurally prevent the escape.

In addition, in the mounting hole 5 of the boss portion 2, as shown in FIG. 4, the upper end is integrally connected to the lower portion of the upper plate surface 2a and is opposed to the peripheral surface of the mounting hole 5. The locking tongue piece 7 is vertically provided.

A plurality of locking claws 7a are formed inside each locking tongue 7,
When the bolt B is inserted into the bolt B, the bolt B pushes each locking tongue piece 7 to the left and right, and the locking claw portion 7a meshes with the thread of the bolt B to prevent the bolt B from coming off.

In other words, in this configuration, when a force in the direction in which the bolt B is pulled out is applied, the locking tongues 7 have a force that attempts to reduce the diameter of each other, and the locking claws 7a become increasingly closer to the thread of the bolt B. By pulling in, the extraction will be restricted.

Further, in the inner depth of each clamp groove 4, a pair of receiving pieces 8 are integrally projected in a loose V-shape on the inner surface of the locking block 3 and the outer surface of the boss portion 2, respectively.

A fixing piece 9 is formed in an inclined state on the inner edge of the locking block 3 in a folded state, while a sharp V-shaped angle is formed between the fixing piece 9 and the outer peripheral surface of the boss portion 2. Nonetheless, the inclined fixing piece 10 is provided so as to project.

Then, the tip of each of the fixing pieces 9 and 10 and each of the receiving pieces 8 form a tube supporting portion that draws a substantially circular locus, and while the fixing piece 9 is pushed open, the outer circumference of the tube TU is clamped by the clamp groove 4. By inserting it from the top opening of the
When the insertion is completed, the tube TU is elastically clamped at each of the receiving pieces 8 and the four ends of the fixing pieces 9 and 10.

Also, when trying to pull out the tube TU from this clamped state, this force acts to push up the fixing piece 9 and becomes a considerable load, so it cannot be pulled out easily.
The tube TU can be stably supported while floating in the clamp groove 4.

[Effects of the Invention] As described above in detail with reference to the embodiments, in the tube clamping device according to the present invention, the clamp block is engaged with and fixed to the bolt on the mating side mounting surface. Since the elastic tongue comes into contact with the mounting surface, there is no gap between the mating mounting surface and the clamp block, which prevents rattling, vibration noise, and tube resonance. it can. In addition, the upper plate surface of the boss portion facing the mating mounting surface is provided in the same direction as the one end opening of the clamp groove and lower than the protrusion amount or height of the locking block. , The lock is set lower than the protrusion amount or height, and the one end opening of the clamp groove is close to the mating side mounting surface to the extent that it can prevent the tube from accidentally coming out. Even if it receives a collision vibration, it is possible to structurally prevent the tube from being accidentally pulled out.

[Brief description of drawings]

FIG. 1 is a front view showing a tube clamping device according to the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view of the same, and FIG.
The figure is a half cross-sectional perspective view of the clamp device, and FIG. 5 is an exploded perspective view showing the relationship between the clamp device, a vehicle body panel, and a tube. 1 …… Clamp block 2 …… Boss part 2a …… Upper plate surface 4 …… Clamp groove 5 …… Mounting hole 6 …… Elastic tongue 7 …… Locking tongue 8 …… Receiving piece 9,10 …… Fixed One side P …… Body panel (opposite side mounting surface) B …… Bolt TU …… Tube

Claims (1)

[Scope of utility model registration request] 1. A clamp block is provided with a mounting boss portion and an opening vertically formed at a substantially central portion of the boss portion. A mounting hole that engages with the screw thread to prevent it from coming off,
A locking block integrally formed in a substantially L shape from the bottom of both sides of the boss to the left and right, and inserted between the locking block and the mounting boss through the outer periphery of the tube from one end opening. And a plurality of clamp grooves that can be elastically clamped by a tube, the upper plate surface of the boss portion facing the mating mounting surface is set in the same direction as the one end opening of the clamp groove. Then
And while being provided lower than the protruding amount of the locking block,
A crank block having a pair of elastic tongues formed on the upper plate surface on opposite sides of the mounting hole so as to be diagonally raised in opposite directions. The crank block holds a tube in the clamp groove. Is in a state of being engaged and fixed to a bolt of the mating mounting surface through the mounting hole of the boss portion, the pair of elastic tongues elastically contact the mating mounting surface, and one end of the clamp groove. A clamp device for tubes, wherein the opening is close enough to prevent the tube from accidentally coming out.