JPH07208413A - Wall plate clamp - Google Patents

Abstract

PURPOSE:To offer a clamp provided with an antirotation mechanism for preventing harmful rotation for a lock hole when a wall plate clamp, provided with a pair of elastic lock piece formed in a vartical stride shape from the top of the clamp prop erected on its base, is fitted and locked in the rectangle lock hole on a body wall plate. CONSTITUTION:A pair of whirl-stop ribs 12A.12B, which are in a fitted and locked pose to a lock hole 7, approaching the fringe 8 on a corner 11 of a long side 10 on one side of the lock hole 7 and positioned in the nonexisting part of an elastic lock piece 4, are provided. Also the part of a clamp prop 3 facing a long side 10B on the other side of the lock hole 7 is made in a shape closely parallel to the fringe of the long side 10B, both ends of the closely parallel part formed in whirl-stop points 13A.13B and clockwise and counterclockwise rotation of a clamp 1 prevented by the whirl-stop rib 12A and the whirl-stop point 13A, and the whirl-stop rib 12B and the whirl-stop point 13B forming pairs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, for example, when locking a wire harness, a tubular body, or other articles to a wall plate of a vehicle body or equipment, has a locking hole penetrating the wall plate. The present invention relates to a wall plate clamp used for fitting and attaching a locking head in a protruding posture.

[0002]

2. Description of the Related Art Conventionally, a wall plate clamp 1 used to lock a wire harness to a wall plate of an automobile (see FIG. 2) has a clamp column 3 provided upright on a base 2 to which a wire harness (not shown) is mounted. The clamp pillar 3 has a structure in which an elastic locking piece 4 of a cantilever having an open leg shape is provided below the pair of elastic locking pieces 4, and the pair of elastic locking pieces 4 are attached to the wall of the vehicle body. Board 6
It is fitted into the locking hole 7 having a rounded rectangular shape which is bored in the hole, and the step locking portion 5 at the lower end of the elastic locking piece 4 is engaged with the peripheral edge of the locking hole 7 so that the plate from the lower portion of the clamp column 3 is removed. The press-connecting piece 9 extending like a ring is elastically contacted with the outside of the wall plate 6 to lock the wall plate clamp 1 with respect to the wall plate 6 in the up-down direction of the clamp 1. .

In the lower half portion of the clamp pillar 3 where the elastic locking piece 4 does not exist, there is a detent rib 12C close to the peripheral edge 8 of the locking hole 7 into which the elastic locking piece 4 is fitted. There is provided a detent mechanism that is located above the diagonal line 16 of the locking hole 7 and is raised to prevent rotation of the wall plate clamp 1 around the clamp column 3 with respect to the locking hole 7.

[0004]

The conventional wall plate clamp 1 having the above-mentioned rotation preventing mechanism has a rotation preventing rib 12C.
However, since the elastic locking piece 4 is provided in the nonexistent portion, there is no interference with the locking function of the elastic locking piece 4, and a provisional detent function can be achieved. However, the detent rib 12C
2 has a point-symmetrical arrangement with the center of the locking hole 7 as an axis,
As shown in (C) and (D), the wall plate clamp 1 is arranged with respect to the locking hole 7 about the shaft center 14 of the clamp column 3.
When attempting to rotate in the clockwise direction (clockwise on the paper surface in the drawing), the pair of detent ribs 12C immediately interfere with the peripheral edge 8 so that a good detent can be achieved, but when attempting to rotate in the counterclockwise direction. There are the following problems.

That is, when trying to rotate in the counterclockwise direction, both of the pair of detent ribs 12C move away from the peripheral edge 8, so that the outside of the clamp column 3 interferes with the peripheral edge 8 and is thereby prevented from rotating. It works. The rotation radius R1 formed by the outer peripheries of the pair of rotation preventing ribs 12C functioning as the clockwise detent and the rotation radius 2 formed by the outside of the clamp column 3 functioning as the counterclockwise detent are: As a matter of course, R1> R2 is set, and the dimensional difference between the two is considerably large. Therefore, the amount of rotation of the wall plate clamp 1 with respect to an external force in the counterclockwise direction is large, and the clamp function becomes unstable. The wire harness attached to 2 is
There is a problem that it causes contact interference with peripheral devices and members. The present invention provides a wall plate clamp that overcomes the above-mentioned drawbacks of the prior art.

[0006]

According to the wall plate clamp of the present invention which solves the above technical problems, "a clamp pillar is erected on a base portion to which an article / member to be held is attached and is suspended from an upper end of the clamp pillar. In a wall plate clamp in which a locking head composed of a pair of cantilever-shaped elastic locking pieces provided is provided, and the locking head is reversely locked in a rectangular locking hole of the wall plate, When the head is locked in the locking hole, the head is joined to or close to the periphery of the same side of the locking hole, and is located in the nonexistent portion of the elastic locking piece. A pair of protruding detent ribs are provided on the clamp column, and a portion of the clamp column facing the opposite side of the same side of the locking hole is joined to and close to the peripheral edge of the locking hole. There is no stop point, and the stop is composed of the stop rib and the stop point. It has a structure "provided with a mechanism.
The pair of detent ribs and detent points may be arranged equidistant from the center of rotation of the clamp column.

[0007]

According to the wall plate clamp of the present invention having the above-described rotation preventing mechanism, even if the wall plate clamp locked in the locking hole is rotated in either the clockwise direction or the counterclockwise direction,
Since the anti-rotation rib and the anti-rotation point that make a pair immediately interfere with the peripheral edge of the locking hole, an effective anti-rotation can be performed regardless of the reverse rotation direction. In the case of the above aspect, the allowable rotation amounts in the clockwise direction and the counterclockwise direction are equal to each other, and the stability of the clamp is improved.

[0008]

Embodiments will be described in detail below based on embodiments. A plate to which a wire harness (not shown) is attached with reference to FIG. 1 showing a wall plate clamp 1 (hereinafter, simply referred to as a clamp 1) according to an embodiment of the present invention applied to disposition and locking of a wire harness to a vehicle body. The clamp pillar 3 is erected on the base 2 in the shape of a ring, and has a locking head 20 composed of a pair of cantilever-shaped elastic locking pieces 4 hanging from the upper end of the clamp pillar 3 in an open-leg shape. The stop head 20 is fitted into a locking hole 7 having a rounded rectangular shape provided on the wall plate 6 of the vehicle body, and the step locking portion 5 at the lower end of the elastic locking piece 4 is engaged with the peripheral edge 8 of the locking hole 5. Detailed description will be given below in a case where the plate-shaped press-contact piece 9 integrally joined to the lower end of the clamp column 3 is pressed against the wall plate 6 and locked in the locking hole 7 in a locking manner. A rotation stopping mechanism is provided.

That is, in the middle portion of the clamp pillar 3, in the state where the clamp 1 is locked in the locking hole 7, the locking hole peripheral edge 8 of the corner 11 of the long side 10A on one side of the locking hole 7 is formed. A pair of anti-rotation ribs 12A and 12B that are in a close posture are provided,
The anti-rotation ribs 12A and 12B are arranged one by one on both sides of the clamp column 3 in the portion where the elastic locking piece 4 does not exist. The portion of the clamp column 3 that faces the peripheral edge 8 of the long side 10B on the other side of the locking hole 7 has a shape that is close to and parallel to the peripheral edge 8, and both ends of the adjacent parallel portions have a pair of detents. It becomes points 13A and 13B, and this pair of detent ribs 12A and 12B and detent points 13A and 1
3B constitutes a rotation stopping mechanism for the clamp 1 locked in the locking hole 7.

The pair of detent ribs 12A
12B and the detent points 13A and 13B are symmetrically arranged with the horizontal center line 15 of the clamp 1 passing through the clamp shaft center 14 serving as the rotation shaft center of the clamp 1 when the clamp 1 rotates with respect to the locking hole 7. Has been done.

The clamp 1 of the embodiment shown in FIG.
In the state of being locked in the locking hole 7, even if an attempt is made to rotate clockwise or counterclockwise about the clamp shaft center 14 by an external force (see (C) and (D) of FIG. 1), The anti-rotation rib 12A and the anti-rotation point 13A or the anti-rotation rib 12B and the anti-rotation point 13B immediately interfere with the peripheral edge 8 and carry the rotational force thereof, so that the harmful rotation of the clamp 1 is prevented. . And since it has the above-mentioned symmetrical shape, the permissible rotation amount that the clamp 1 substantially rotates in any of the rotation directions is the rotation stop points 13A and 13B and the peripheral edges 8 of the rotation prevention ribs 12A and 12B. If the clearance is set to a small value, the clamp 1 will rotate very little regardless of the rotation direction, and the clamp performance will be stable.

The clamp 1 of the present invention is not limited to the above-described embodiment, but the detent ribs 12A and 12B and the detent points 13A and 13B may be joined to the peripheral edge 8, or the detent rib. 12A and 12B are corners 1
It may be joined to / close to the long side 10A other than 1, or may be protrusion-shaped detent points 13A and 13B.

[0013]

As described above, the wall plate clamp of the present invention has an effect that the clamp performance is excellent and stable without causing harmful clamp rotation during use.

[Brief description of drawings]

FIG. 1 shows a wall plate clamp according to an embodiment of the present invention, in which (A) is a front sectional view thereof, (B) is a plan view thereof, and (C) and (D) are shown. Is a plan view of its working state

FIG. 2 shows a conventional wall plate clamp, in which (A) is a front cross-sectional view thereof, (B) is a plan view thereof, and (C) (D) is a working state thereof. Plan view

[Explanation of symbols]

 1 Wall Plate Clamp 2 Base 3 Clamp Column 4 Elastic Locking Piece 5 Step Locking Part 6 Wall Plate 7 Locking Hole 8 Edge of Locking Hole 9 Pressing Piece 10A / 10B Long Side of Locking Hole 11 Locking Hole Corners 12A and 12B Non-rotating ribs 13A and 12B Non-rotating points 14 Clamp column axis 15 Horizontal center line 20 Locking head

Claims (2)

[Claims] 1. A clamp pillar is erected on a base portion to which an article / member to be held is attached, and a locking head composed of a pair of cantilever-like elastic locking pieces hung from an upper end of the clamp pillar is provided.
In a wall plate clamp that reversely locks the locking head in a rectangular locking hole of the wall plate, in the locking posture of the locking head with respect to the locking hole, the same side of the locking hole is provided. Is joined to or close to the periphery, and is located in the non-existing portion of the elastic locking piece,
A pair of anti-rotation ribs protruding from both sides of the clamp pillar are provided on the clamp pillar, and further, a portion of the clamp pillar facing the opposite side of the same side of the locking hole is joined / closed to the peripheral edge. A wall plate clamp, characterized in that it is provided with a rotation-stopping mechanism including the rotation-stopping rib and the rotation-stopping point. 2. The clamp for a wall plate according to claim 1, wherein the detent ribs and detent points are arranged symmetrically about a horizontal center line passing through the axis of the clamp column as an axis.