JPH0319259Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a fastener for installing and fixing an object to be attached, such as a wire harness, through a mounting hole formed through a panel.

(Prior art) Conventionally, as a fastener for fixing this type of wire harness or other object to be attached to a panel, etc.
The clamp 31 disclosed in this publication includes a clamp body 32 for fixing the wire harness W, and an automobile body protruding from the center of the clamp body 32, as shown in FIG. An umbrella-shaped head 35 for insertion into the insertion hole 34 of 33, and an insertion locking portion 36 that is integrally provided with the umbrella-shaped head 35 and that normally expands from the body insertion hole 34 and contracts by a spring action when inserted.
In this wire harness clamp, an eight-shaped protruding piece 37 is provided on the lower surface of the clamp body 32, facing the insertion locking part 36.

(Problems to be Solved by the Invention) However, in the structure of the clamp 31 described above, the figure-eight-shaped protruding piece 37 is provided protrudingly from the lower surface of the clamp body 32, and the figure-eight-shaped protruding piece 37 is pressed against the upper surface of the panel. Since the elasticity of the wire harness absorbs the looseness, the distance between the clamp body 32 and the shoulder of the insertion locking part 36 becomes larger, and therefore the attachment state of the wire harness W attached to the clamp body 32 is increased. If an external force is applied to the wire harness W, the wire harness W will swing up and down due to the bending of the eight-shaped protrusion 37, causing sideways displacement or loosening, or contacting other parts, which may result in an accident. There were problems such as the occurrence of

(Means for solving the problem) The present invention was made to solve the above-mentioned conventional problems, and prevents rattling without setting a large distance between the clamp body and the shoulder of the insertion locking part. The purpose of the fastener is to provide a fastener that can be attached to a panel. In a fastener comprising a locking leg that is symmetrically upwardly diagonal from the end portion and has a shoulder portion at the upper end that engages with the mounting hole, a locking leg is provided on the distal end side of the central shaft from a position orthogonal to the locking leg. A pair of elastic pieces are integrally formed that are curved upwardly toward the substrate side and outwardly in a substantially arched shape and extend longer than the shoulders of the locking legs, and the upper ends of the left and right elastic pieces are formed integrally with each other. The part side consists of a fastener that abuts and engages with the mounting hole and is configured to be elastically deformable into a substantially horseshoe shape centered on the central axis.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. 3 in the figure shows how a wire harness (also referred to as an object to be attached) W is installed through a mounting hole 2 penetrated through the panel 1. A substrate 4 which is a fastener made of synthetic resin or the like for fixing the installation and is formed into a substantially rectangular plate shape.
A prismatic central shaft 5 of a predetermined length is vertically disposed approximately in the center of the lower surface, and symmetrical locking legs 6 are diagonally arranged upward from the lower end of the central shaft 5 to the left and right. A shoulder portion 7 and a neck portion 8 that engage with the mounting hole 2 are formed at the upper end of the locking leg 6 . Also,
An elastic piece 9 is formed to extend obliquely upward at a position substantially perpendicular to the position where the locking leg 6 is provided at the lower end of the central shaft 5, and this elastic piece 9 is approximately curved gently outward. It is formed into a bow shape, and its length extends slightly longer than the length of the locking leg 6 up to the shoulder portion 5. The locking leg 6 and the elastic piece 9 formed in this manner are provided so as to be elastically displaceable toward the central shaft 5 around the mounting base thereof, and the elastic piece 9 itself has the ability to bend.

Next, the operation and effects of this embodiment configured as described above will be explained.

Now, in this embodiment, a substantially flat substrate 4 and a substantially flat substrate 4 are used.
A central shaft 5 that can be inserted into the mounting hole 2 penetrated through the panel 1 is vertically provided on the lower surface of the panel 1, and a shoulder portion that engages with the mounting hole 2 at the upper end is symmetrically diagonally upward from the end of the central shaft 5. 7
In a fastener 3 consisting of a locking leg 6 having
On the distal end side of the central shaft 5, from a position perpendicular to the locking leg 6, there is a curved upward obliquely toward the substrate 4 side and outwardly curved in a substantially arched shape, extending longer than the shoulder portion 7 of the locking leg 6. A pair of elastic pieces 9 are integrally formed, and the upper end sides of the left and right elastic pieces 9 abut and engage with the mounting hole 2 to be elastically deformable into a substantially horseshoe shape centered on the central shaft 5. It is a fallen one. Therefore, the wire harness W is attached to the panel 1 using the fastener 1 of this example.
When installing and fixing the wire harness W through the mounting hole 2 provided through the fastener 1, first attach the wire harness W to the board 4 of the fastener 1.
Place it on top and wrap it with a band T such as adhesive tape to fix it. Next, when each locking leg 6 and elastic piece 9 of the fastener 1 are pressed along the mounting hole 2 provided through the panel 1 so as to be in contact with each other, each locking leg 6 and elastic piece 9 will fit into the mounting hole 2. It is guided and elastically displaced toward the central shaft 5 around the mounting base. At the same time as the shoulder part 7 of the locking leg 6 passes through the mounting hole 2, it is elastically restored and the shoulder part 7 is engaged with the lower surface side of the mounting hole 2, and the neck part 8 is brought into contact with the edge of the mounting hole and is engaged. This prevents the fastener 3 from coming off upwards, and the fastener 3 is attached to the panel 1.
Fixed.

In this case, the elastic piece 9 is formed longer than the length up to the shoulder of the locking leg 6, and the tip of the elastic piece 9 is located within the mounting hole 2, as shown in FIG. In addition, since it is formed into a substantially arched shape that curves outward, the left and right elastic pieces 9 are elastically deformed into the illustrated horseshoe shape (see Figure 3), and the elastic force F possessed by the left and right elastic pieces 9 is as shown in Figure 3. As it acts obliquely upward as shown by the arrow, the board 4 is pulled downward, and its lower surface almost comes into contact with the upper surface of the panel 8, and the locking legs 6 and elastic pieces 9 cooperate with each other. According to
It is possible to eliminate play in the fastener 1, prevent loosening and lateral displacement, minimize the distance between the board 4 and the shoulder 7, and arrange the wire harness W in a reliable and stable state. Note that the shape of the substrate 4 is not limited to a rectangular shape, but may be any other shape, and the central shaft 5 is not limited to a prismatic shape, but may be a cylindrical shape.

(Effect of the invention) The present invention includes a substantially flat board and a central shaft that can be inserted into a mounting hole penetrating the panel on the bottom surface of the board, and vertically extending the central shaft from the end of the central shaft. A fastener comprising a locking leg having a shoulder portion that engages with the mounting hole at the upper end in a diagonal manner, the top side of the central shaft having an upwardly oblique shape from a position orthogonal to the locking leg toward the substrate side. and integrally forming a pair of elastic pieces that are curved outward in a substantially arched shape and extend longer than the shoulders of the locking legs, and the upper end sides of the left and right elastic pieces are fitted into the mounting holes. By abutting and engaging and being configured to be elastically deformable into a substantially horseshoe shape centered on the central axis, when this fastener is attached to the mounting hole of the panel, the left and right elastic pieces will be able to deform elastically around the central axis. The board is elastically deformed into a roughly horseshoe shape, and the board is pulled downward by the elastic force of the elastic piece, so that its bottom surface almost touches the top surface of the panel, and the locking shaft and the elastic piece cooperate with each other. By working, the looseness of the fastener is eliminated,
Loosening and lateral displacement can be prevented, the distance between the board and the shoulder can be minimized, and the wire harness can be installed reliably and stably.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of the fastener of the present invention, Figs. 2 and 3 are explanatory diagrams of the operation, Fig. 4 is a front view of the fastener, and Fig. 5 is the same. The side view, FIG. 6, is a conventional example. 1... Panel, 2... Mounting hole, 3... Fastener,
4... Board, 5... Central shaft, 6... Locking leg, 7...
...Shoulder part, 9...Elastic piece.

Claims (1)

[Scope of utility model registration request] A substantially flat board and a central shaft that can be inserted into a mounting hole penetrating the panel are vertically provided on the lower surface of the board, and the upper end is engaged with the mounting hole in a diagonal manner symmetrically upward from the end of the central shaft. and a locking leg having matching shoulders, the distal end side of the central shaft being curved obliquely upward toward the substrate from a position orthogonal to the locking leg, and curved outward in a substantially arcuate shape. A pair of elastic pieces extending longer than the shoulders of the locking leg are integrally formed, and the upper end sides of the left and right elastic pieces abut and engage with the mounting hole to support the central shaft. A fastener configured to be elastically deformable into a roughly horseshoe shape with its center.