JPH0315894Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a wire harness that protects the wire harness from being damaged by the edges of the hole when the wire harness or the like is inserted through a hole in a steel plate body of a vehicle or the like. Regarding a protector for a harness, etc., the purpose is to provide a protector for a wire harness, etc., which can be easily incorporated into a wire harness, etc., and which has good attachability to a hole in a steel plate body.

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawing, 1 is a steel plate body, and the steel plate body 1 has a mounting hole 2 through which the wire harness W is inserted.
is installed through the attachment hole 2, and a wire harness W is installed in the attachment hole 2 via a protector 3 made of synthetic resin or the like.

Reference numeral 3 denotes the above-mentioned protector, in which substantially symmetrical substantially semicircular arc-shaped substrates 4 are connected via a thin hinge portion 5, and the ends 4f of the substrates 4 can be opened and closed via the hinge portion 5. The end portion 4f is provided in a substantially washer shape when the end portion 4f is brought close to the end portion 4f.

Reference numeral 4 is the above-mentioned board, which is formed in a substantially semicircular arc shape, and in its cross section, 4a is a web having a predetermined width, and the inner peripheral edge thereof has a contact surface 4b side that contacts the steel plate body 1. An inner edge 4c is formed that overhangs with a predetermined overhang width, and an outer edge 4d that overhangs with a predetermined overhang width in the opposite direction to the inner edge 4c is provided on the outer peripheral edge of the web 4a, so that the web 4a has a substantially Z-shaped cross section. It is formed. Elastic locking protrusions 6 are formed at predetermined intervals on the inner edge 4c of the substrate thus formed.

Reference numeral 6 denotes the above-mentioned elastic locking protrusions, and a plurality of the elastic locking protrusions 6 are provided at the end of the inner edge 4c of the substrate 4 (in this embodiment, two pieces are provided as an example).
c is folded outward from the end thereof, and a receiving piece 6a that is approximately parallel to the inner edge 4c is protruded from the tip thereof, and a locking surface 6b is formed at the tip of the locking protrusion. . Note that the elastic locking protrusion 6 is provided so as to be elastically deformable toward the inner edge 4c. The locking protrusions 7, 7' and the receiving protrusions 8, 8 and 8 are disposed in a discrepancy on the inside and outside of the radial direction on the end 4f side of each of the substrates 4 formed in this way.
8' are formed respectively.

7 is the end 4 of the substrate 4 on the left side of the figure (see FIG. 1)
It is a locking protrusion provided on the f side, and is formed at the end of the outer edge 4d, following the arcuate curve of the outer edge 4d.
That is, 7a is a base piece provided in an upright manner from the end of the outer edge 4d, and the base piece 7a has a hook-shaped locking piece 7b having a locking protrusion 7c on the lower surface of the tip.
is provided to form the locking protrusion 7, and the locking piece 7b
is endowed with bullet performance.

Reference numeral 8 denotes a receiving projection provided adjacent to the inside of the locking projection 7, which has a receiving surface 8b rising vertically from the end of the web 4a, and has an oblique guide surface 8 on the front end side.
a is formed. Next, the board 4 on the right side of the diagram
The locking protrusion 7' and the receiving protrusion 8' formed on the left side board 4 are provided in a manner that is inconsistent with the locking protrusion 7 and the receiving protrusion 8, and are formed in the same shape, so a description thereof will be omitted. The locking projection 7 and the receiving projection 8' thus formed, and the locking projection 7' and the receiving projection 8 formed in this manner are formed so as to be able to engage with each other.

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

Now, in the protector 3 of this example, a substantially symmetrical semicircular arc-shaped board 4 is connected via a thin hinge part 5, and the board 4 is engaged with the mounting hole 2 through which the wire harness of the steel plate body 1 is inserted. A plurality of folded elastic locking protrusions 6 are protrudingly provided for the purpose of locking, and a pair of approximately hook-shaped locking protrusions 7 that engage with each other are provided on the inside and outside of the radial direction of the ends 4f of each substrate 4. , 7' and the receiving projections 8, 8' are provided in a staggered manner. Therefore, in advance, the wire harness W in which the electric wires W ₁ are bundled is positioned between the mutual boards 4,
The locking protrusion 7 and the receiving protrusion 8' provided in an inconsistent manner on the end portion 4f of the substrate 4 which moves the substrate 4 around the hinge part 5 due to an external force F, and the locking protrusion 7' and the receiving protrusion 8 come into contact with each other. (See Figures 5 and 6).
Further, when an external force F is applied, the locking pieces 7a, 7a' of the substantially hook-shaped locking projections 7, 7' are moved to the receiving projection 8,
When the locking protrusions 7c, 7'c of the locking pieces 7a, 7a' pass through the receiving projections 8, 8' by applying an external force F, the locking pieces 7a, 7a' are elastically displaced along the guide surfaces 8a, 8a' of the locking pieces 7a, 7a'. The retaining pieces 7a and 7'a are elastically restored to their original states, and the retaining protrusions 7c and 7'c are respectively engaged with the respective receiving protrusions 8 and 8', so that both substrates 4 are integrally formed into a substantially circular shape. The wire harness W is connected to and incorporated into the inner diameter portion of the substrate 4. Thereafter, the wire harness W is inserted into the mounting hole 2 formed through the steel plate body, and the elastic locking protrusion 6 protruding from the base plate 4 of the protector is brought into contact with the mounting hole 2. When the substrate 4 is pressed by applying an external force F, the elastic locking protrusion 6 is elastically deformed by the external force F and is displaced toward the inner edge 4c (Figs. 7 and 8).
(see figure). Furthermore, by applying an external force F, the elastic locking protrusion 6
When the locking surface 6b formed at the tip of the elastic locking protrusion 6 passes through the mounting hole 2, the elastic locking protrusion 6 elastically returns to its original state.
The receiving piece 6a and the locking surface 6b formed at the tip are engaged with the edge of the mounting hole 2, and the inner edge 4c of the board 4 is engaged with the edge of the mounting hole 2.
protrudes inward from the periphery of the attachment hole 2 to prevent the wire harness W from coming into direct contact with the steel plate body 1, thereby preventing damage.

In particular, approximately hook-shaped locking protrusions 7 are provided on the inside and outside of the connecting end of the substrates 4, 4 of the protector 3 in the radial direction.
7' and protruding receiving protrusions 8, 8' are provided in a staggered manner and are elastically engaged with each other to be connected in a substantially washer shape, as shown in Figs. 5 and 6. During this engagement operation, the substrates 4, 4 do not ride on each other, and can be reliably engaged simply by applying an external force F, for example, by pinching with one hand, from the left and right sides of the figure, and as shown in FIG. When an external force F is applied to the substrates 4, 4, the locking protrusions 7, 7' act repulsively to each other, and the strain in the torsional direction of the approximately washer-shaped combined substrates 4, 4 can be significantly reduced. Therefore, it can be easily attached to the mounting hole 2 via the elastic locking protrusion 6 with one touch, and
Since the elastic locking protrusion 6 does not come off and the substantially arc-shaped substrate 4 is connected via the thin hinge portion 5, the wire harness W can be easily installed. In addition, locking protrusions 7 are provided at two locations in the radial direction of the end portion 4f of each substrate 4.
7' and the protruding receiving protrusions 8, 8' are provided in a staggered manner so that they are elastically engaged with each other. It has many features such as being highly reliable as it can perform a locking function.

Now, in the present invention, substantially symmetrical semicircular arc-shaped substrates are connected via thin-walled hinge parts, and the substrates have a plurality of folded elastic locking protrusions for engaging with a mating opening. A pair of substantially hook-shaped locking protrusions and a receiving protrusion that engage with each other are provided in a staggered manner on the inside and outside of the radial direction of the ends of the mutual substrates to elastically engage each other. By doing this, the boards are connected in a substantially washer shape, so that the boards do not ride on each other during this engagement operation, and the engagement can be ensured by simply applying an external force such as pinching with one hand. Furthermore, when an external force is applied to the board when it is fastened to the mounting hole, the locking protrusions act repulsively to each other, significantly reducing the distortion in the torsional direction of the approximately washer-like board assembly. Therefore, the elastic locking protrusion can be easily attached to the mounting hole with a single touch, and the elastic locking protrusion will not come loose. Also, the ends 4 of the mutual substrates 4
Since the locking protrusion and the protruding receiving protrusion are provided in two locations in the radial direction of f in an inconsistency manner so that they are elastically engaged with each other, for example, even if either the inner or outer locking protrusion is damaged, Since the locking function can be performed by the other, reliability is high.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a side view, Fig. 3 is a partially extracted enlarged sectional view of the elastic locking protrusion, and Fig. 4 is the locking protrusion. 5 and 6 are explanatory diagrams of the action of the locking projection and the reception projection. FIGS. 7 and 8 are diagrams of the action of the elastic locking projection. FIG. 9 FIG. 10 is a perspective view illustrating the installation of the wire harness, and FIG. 11 is a perspective view showing the attached state. 4... Board, 5... Hinge portion, 6... Elastic locking protrusion, 7, 7'... Locking protrusion, 8, 8'... Receiving protrusion.

Claims (1)

[Scope of utility model registration request] Approximately symmetrical semicircular arc-shaped substrates are connected via thin-walled hinges, and the substrates are provided with a plurality of folded elastic locking protrusions projecting to engage with the mating opening. A protector for a wire harness, etc., comprising a pair of substantially hook-shaped locking protrusions and receiving protrusions that engage with each other on the inside and outside in the radial direction of the ends of each substrate in a staggered manner.