JPS6110066Y2 - - Google Patents

Description

[Detailed description of the invention] This invention connects a bundle of wires after wiring to a printed circuit board.
This invention relates to a wire bundle clamp for fixing to a chassis, panel, etc.

A wire bundle clamp, which is made by fixing both ends of an elastic plastic band to a circuit board to form a ring shape and fixing a bundle of wires, can be used by temporarily fixing one open end to a circuit board and then opening the other end. For example, it has the advantage of forming a wide opening so that wires can be accommodated easily, but since the diameter of the ring made up of the band is always constant, a bundle of wires with an outer diameter smaller than this diameter is Since it cannot be fixed securely, there is a problem in that the clamp must be selected according to the outer diameter of the wire bundle. Therefore, as shown in the conventional example in Fig. 1, an auxiliary elastic plate 3 whose tip is movable is integrally molded inward from one open end 2 of the elastic plastic band 1, and a bundle of electric wires with a small outer diameter is formed. 4, the wire bundle 4 is placed between the auxiliary elastic plate 3 and the band 1.
It has been proposed that the device be clamped in place.

However, in such a conventional product, it is necessary to displace the tip of the auxiliary elastic plate 3 according to the diameter of the wire bundle 4 to make it flexible for various wire bundle diameters. Since it is necessary to provide a certain amount of gap between the tip 3' and the band 1 so that the wire can be freely displaced, if part 4' of the wire protrudes outside of the auxiliary elastic plate 3 through this gap, There were some drawbacks.

The present invention eliminates the above-mentioned drawbacks of the conventional method by integrally molding a projecting piece facing the tip of the auxiliary elastic plate to prevent the electric wire from passing between the tip of the auxiliary elastic plate and the band. In order to achieve this purpose, the following configuration was adopted. That is, the wire bundle clamp of the present invention fixes a wire bundle by overlapping both open ends of an elastic plastic band so as to form an annular shape and fixing it to a substrate.
An auxiliary elastic plate whose tip is movable toward the inside of the annular shape from the open end of the band that comes into contact with the substrates is integrally molded, and the tip of the auxiliary elastic plate and the tip of the auxiliary elastic plate are disposed on the inside of the band. The present invention is characterized in that protrusions are integrally molded at opposing positions, and the protrusions and the tip of the auxiliary elastic plate form a passage blocking portion that prevents the fixed electric wire from passing.

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 2 and 3 show an embodiment of the present invention, in which an elastic plastic band 5 is formed in advance into a semi-annular shape, and one open end 6 is provided with a A fixing plate 7 projecting approximately at right angles is integrally molded, and a wedge-shaped mounting portion 8 is integrally molded on the lower surface of the outer end. The other open end 9 of the band 5 is linearly extended and has approximately the same length so that it can overlap with the fixing plate 7.
A hook-shaped engagement part 10 is integrally molded at a position facing the inner end 7' of the open end 9, and a wedge-shaped protrusion 11 is integrally molded at the end of the open end 9. When inserted into the mounting hole 12 of the fixing plate 7, the inner elastic locking portion 13 of the wedge-shaped mounting portion 8 is pushed out so that the protrusion 11 and the inner elastic locking portion 8 of the wedge-shaped mounting portion 8 are elastically engaged. The portion 13 constitutes a one-touch fixing mechanism.

Further, an auxiliary elastic plate 14 is integrally molded from the open end 6 of the band 5 that is in direct contact with the substrates toward the inside of the band 5, and the tip 15 of the auxiliary elastic plate 14 is is elastically displaceable, and furthermore,
A triangular protrusion 16 is integrally molded on the inside of the band 5 facing the tip 15, and there is a slight gap between the tip 15 of the auxiliary elastic plate 14 and the apex of the protrusion 16, and the tip 15 has a protrusion. It is designed so that it can be freely elastically displaced without interfering with the piece 16.

In use, as shown in FIG.
When the clamp is press-fitted into the mounting hole, the elastic locking portion 8' is displaced inward, penetrates the mounting hole, and snaps onto the clamp, thereby fixing the clamp itself to the substrate 17. In this state, the band 5 has a semicircular shape, so if the other open end 9 is expanded, the wire bundle 18 can be easily inserted into the space formed by the band 5 and the auxiliary elastic plate 14. can. Then the hook-shaped engagement part 1 of the open end 9
0 is engaged with the inner end 7' of the fixing plate 7, and then the protruding piece 11 is press-fitted into the mounting hole 12 and snap-fitted, the open end 9 is completely overlapped and fixed onto the fixing plate 7, The band 5 has an annular shape, and the wire bundle 18 is fixed between the band 5 and the auxiliary elastic plate 14.

At this time, the tip 15 of the auxiliary elastic plate 14 is connected to the protruding piece 16.
Since the wire bundle 18 is displaced with a slight gap between
acts as a blocking section to prevent the wire bundle 18 from passing through.
The wire bundle 18 is securely fixed without any part of it protruding out and coming loose outside the auxiliary elastic plate 14. Moreover, in this embodiment, the auxiliary elastic plate 14 is
The band 5 is
Since it is integrally formed toward the inside of the circular ring formed by the auxiliary elastic plate 14, even if the other open end 9 is pushed apart,
is not displaced and can reliably prevent the wire bundle 18 from passing through. Therefore, even if one or several electric wires are inserted one after another, the electric wires will not pass outside the auxiliary elastic plate 14.

FIG. 4 shows another embodiment of the present invention, in which the protruding piece 16 literally protrudes from the band 5, but the effect is the same as described above.

As described above, the present invention integrally molds an auxiliary elastic plate whose tip is movable inward from the open end of the elastic plastic band that contacts the substrate, and This is a wire bundle clamp in which a projecting piece is integrally molded on the inside of the body at a position facing the tip of the auxiliary elastic plate to prevent the wire from passing between the tip of the auxiliary elastic plate and the band. Even if the bundle of wires has an outer diameter smaller than the diameter of the ring made up of the ring, it will be fixed by the auxiliary elastic plate, and a part of the wires will protrude from the gap between the tip of the auxiliary elastic plate and the band, and the bundle of wires will be auxiliary. This has the effect that the wire bundle can be securely fixed without coming loose to the outside of the elastic plate. Moreover, since the auxiliary elastic plate is integrally molded from the open end side that comes into contact with the circuit board, when the other open end is expanded and the electric wire is inserted, the tip of the auxiliary elastic plate will not be displaced and the electric wire Protrusion can be more reliably prevented.

Further, since the tip of the auxiliary elastic plate is flexibly elastically displaced, it has the advantage that it can be used widely for wire bundles of various outer diameters.

[Brief explanation of the drawing]

Fig. 1 is a front view of the conventional example, Fig. 2 is a perspective view showing the embodiment of the present invention, Fig. 3 is also a front view, and Fig. 4 is a front view of the conventional example.
The figure is a front view showing another embodiment. 5...Band body, 7...Fixing plate, 8...Wedge-shaped attachment part, 9...Open end, 10...Hook-shaped engagement part, 11
... Wedge-shaped projecting piece, 14 ... Auxiliary elastic plate, 16 ...
...Protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] An electric wire bundle clamp for fixing a bundle of electric wires by overlapping both open ends of an elastic plastic band so as to form an annular shape and fixing the band to a substrate, An auxiliary elastic plate whose tip can be freely displaced from the open end on the abutting side toward the inside of the annular shape is integrally molded, and a protrusion is provided on the inside of the band at a position facing the tip of the auxiliary elastic plate. 1. An electric wire bundle clamp, characterized in that the clamp is integrally molded, and the projecting piece and the tip of the auxiliary elastic plate form a passage blocking part that prevents the fixed electric wire from passing.