JP6832201B2 - Protector and wire harness - Google Patents

Description

The present invention relates to a protector for accommodating an electric wire and a wire harness provided with the protector.

A protector may be used in the wire harness to protect the electric wire. The protector is shaped along the arrangement path of the wire harness. Therefore, in the place where the arrangement path of the wire harness is curved, the protector is also curved.

8 and 9 show conventional examples of curved protectors. The protector 50 has a protector main body 52 having an electric wire accommodating chamber 53, and a first cover 60 and a second cover 70 attached to the protector main body 52 via a hinge portion 54, respectively.

The protector main body 52, the first cover 60, and the second cover 70 are provided with lock portions 55 at positions corresponding to each other at closed positions of the first cover 60 and the second cover 70, respectively.

The first cover 60 and the second cover 70 have overlapping plate portions 60a and 70a that partially overlap each other at the closed position of the electric wire accommodating chamber 53 at the curved portion of the protector 50. The overlapping plate portions 60a and 70a are formed to be about half as thin as the other portions. The overlapping plate portion 60a of the first cover 60 is provided with a rib 61 protruding from the inner surface. The overlapping plate portion 70a of the second cover 70 is provided with a protrusion 71 that protrudes from the inner surface. A hole 72 penetrating to the outer surface is formed in the protrusion 71.

After accommodating an electric wire (not shown) in the electric wire accommodating chamber 53 of the protector main body 52, the electric wire accommodating chamber 53 is closed in the order of the second cover 70 and the first cover 60. When the first cover 60 is rotated to the closed position of the electric wire accommodating chamber 53, the rib 61 of the first cover 60 is inserted into the hole 72 of the second cover 70. This completes the assembly of the protector 50.

In the above conventional example, the lock portion 55 is not set on the curved portion of the protector 50 because it is difficult to set the lock portion 55. However, in the curved portion of the protector 50, the rib 61 of the first cover 60 is inserted into the hole 72 of the second cover 70, thereby connecting to each other. Therefore, the protector 50 has a structure having high torsional rigidity, and lateral displacement of the first cover 60 and the second cover 70 can be prevented.

Jikkenhei 4-134116 Gazette

However, in the protector 50 of the conventional example, when the rib 61 of the first cover 60 is inserted into the hole 72 of the second cover 70, the operator cannot visually recognize the positions of the rib 61 and the hole 72. Therefore, there is a problem that the workability of assembling the protector 1 is poor.

Therefore, the present invention has been made to solve the above-mentioned problems, and a protector in which the first cover and the second cover are connected and has good assembly workability, and this protector are used. The purpose is to provide the wire harness that was there.

The present invention has a protector main body having an electric wire accommodating chamber, a first cover attached to the protector main body and closing the opening surface of the electric wire accommodating chamber, and a region attached to the protector main body and different from the first cover. A second cover for closing the opening surface of the electric wire accommodating chamber, a superimposing plate portion provided on the first cover and arranged so as to overlap the lower surface of the second cover at the closed position, and a superimposing plate portion provided on the superimposing plate portion. It is characterized in that it is provided with a rib protruding outward and a hole provided in the second cover and into which the rib is inserted at a closed position.

According to the present invention, when the second cover is moved to the closed position of the electric wire accommodating chamber and then the first cover is moved to the closed position of the electric wire accommodating chamber, the rib of the first cover is removed from the hole of the second cover. Assembling workability is good because it can be visually observed.

An embodiment of the present invention is shown, and is a perspective view of a protector. An embodiment of the present invention is shown, where FIG. 1A is an enlarged view of part A in FIG. 1, and FIG. 1B is an enlarged view in which the first cover is moved from the state of FIG. 1 to an open position. An embodiment of the present invention is shown, (a) is a sectional view taken along line B1-B1 of FIG. 1, and (b) is an enlarged view of part C of (a). An embodiment of the present invention is shown, where FIG. 1A is a sectional view taken along line B2-B2 of FIG. 1, and FIG. 1B is a sectional view taken along line B3-B3 of FIG. An embodiment of the present invention is shown, and is a perspective view in which a protector is set on a jig base. An embodiment of the present invention is shown, and is a perspective view in which the first cover and the second cover of the protector set on the jig base are closed positions. A modified example of the embodiment of the present invention is shown, and it is sectional drawing of the main part of the protector. A conventional example is shown, and it is a perspective view of the protector in which the 1st cover and the 2nd cover are open positions. FIG. 5 is a cross-sectional view of a protector in which both the first cover and the second cover are closed positions, showing a conventional example.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 to 6 show an embodiment of the present invention. The wire harness follows a curved route. In the wire harness, the protector 1 is attached to a portion of the curved path. Hereinafter, the configuration of the protector 1 will be described.

The protector 1 includes a protector main body 2 having an electric wire accommodating chamber 3, and a first cover 10 and a second cover 20 for closing the opening surface of the electric wire accommodating chamber 3.

The protector main body 2 has a bottom wall 2a and a pair of side walls 2b erected from both ends of the bottom wall 2a. The electric wire accommodating chamber 3 is formed by being surrounded by the bottom wall 2a and the pair of side walls 2b. The upper surface of the electric wire accommodating chamber 3 is open. The electric wire W is accommodated in the electric wire accommodating chamber 3 through the opening on the upper surface. The bottom wall 2a is formed in the jig pin insertion hole 4 at a curved portion of the protector 1, specifically, at a position directly below the jig pin insertion hole 13 of the first cover described below.

The first cover 10 and the second cover 20 are provided at the upper ends of one side wall 2b via the hinge portions 5 (shown in FIGS. 4A and 4B), respectively. Each hinge portion 5 is provided only in a linear portion, and is not provided in a curved portion.

The first cover 10 and the second cover 20 are rotatably provided between the open position shown by the virtual line in FIG. 1 and the closed position shown by the solid line in FIG. 1 due to the bending deformation of each hinge portion 5. The first cover 10 and the second cover 20 are arranged at positions that close different opening regions of the electric wire accommodating chamber 3, but overlap each other at a curved portion of the protector 1.

Specifically, the first cover 10 has a superimposing plate portion 11 at its curved portion. The superimposing plate portion 11 projects from the side end portion of the first cover 10 toward the second cover 20 side. The superimposing plate portion 11 is installed at a position lower than the inner surface of the first cover 10. The overlapping plate portion 11 is arranged so as to overlap the lower surface of the second cover 20 at a position where the electric wire accommodating chamber 3 is closed. The overlapping plate portion 11 is provided with a rib 12 protruding from the outer surface. The rib 12 has a square frame shape, and a jig pin insertion hole 13 is formed inside. The jig pin insertion hole 13 is a through hole.

The second cover 20 has a hole 21 formed at a position where the electric wire accommodating chamber 3 is closed and overlaps with the overlapping plate portion 11 of the first cover 10. Both the first cover 10 and the second cover 20 are in the closed positions of the electric wire accommodating chamber 3, and the rib 12 is inserted into the hole 21. The hole 21 is a rectangular hole having a size larger than the outer size of the rib 12. The inner peripheral edge of the hole 21 is formed on the tapered surface 22 as shown in detail in FIG.

The protector main body 2, the first cover 10, and the second cover 20 are provided with lock portions 7 at positions corresponding to each other at closed positions of the first cover 10 and the second cover 20, respectively. The lock portion 7 is provided not at a curved portion of the protector 1 but at a linear portion. As shown in FIGS. 4A and 4B, the first cover 10 and the second cover 20 have a protector main body in a linear portion, one of which is the hinge portion 5 and the other of which is the lock portion 5 in the width direction. It is fixed at 2. In other words, it depends on the structure that does not shift laterally.

Next, a procedure for attaching the protector 1 to the electric wire W to manufacture a wire harness will be briefly described.

First, the electric wire W is accommodated in the electric wire accommodating chamber 3 of the protector main body 2 in which the first cover 10 and the second cover 20 are in the open positions. Next, as shown in FIG. 5, the jig pin 31 of the jig base 30 is inserted into the jig pin insertion hole 4 of the protector main body 2 and the protector 1 and the electric wire W are set in the jig base 30 in a positioned state. To do. For the protector 1 and the electric wire W set on the jig base 30, predetermined operations such as tape winding on the electric wire W, clip attachment, and attachment of the protector to the electric wire W are performed on the jig base 30.

Assembling the protector 1 is performed as a work process on the jig base 30 or as a final work process. The work of assembling the protector 1 is performed as follows. The first cover 10 is rotated to the closed position of the electric wire accommodating chamber 3 to close the upper surface opening of the electric wire accommodating chamber 3. In this closing process, the jig pin 31 is inserted into the jig pin insertion hole 13 of the superimposing plate portion 11. Next, as shown in FIG. 6, the second cover 20 is rotated to the closed position of the electric wire accommodating chamber 3 to close the upper surface opening of the electric wire accommodating chamber 3. In this closing process, the rib 12 of the overlapping plate portion 11 of the first cover 10 is inserted into the hole 21 of the second cover 20 while passing the jig pin 31 through the hole 21 of the second cover 20. The first cover 10 and the second cover 20 are locked to the protector main body 2 by the lock portions 7 of both sides at the closed position of the electric wire accommodating chamber 3.

When the predetermined work on the jig base 30 is completed, the protector 1 is removed from the jig base 30 while pulling out the jig pin 31 from the protector 1. This completes the assembly work.

As described above, the protector 1 is attached to the protector main body 2 having the electric wire accommodating chamber 3, the first cover 10 attached to the protector main body 2 and closing the opening surface of the electric wire accommodating chamber 3, and the protector main body 2. A second cover 20 that closes the opening surface of the electric wire accommodating chamber 3 in a region different from the first cover 10, and a superposition plate that is provided on the first cover 10 and is arranged so as to overlap the lower surface of the second cover 20 at the closed position. A portion 11 is provided, a rib 12 provided in the overlapping plate portion 11 and projecting outward, and a hole 21 provided in the second cover 20 into which the rib 12 is inserted at the closed position.

Therefore, when the first cover 10 is set to the closed position of the electric wire accommodating chamber 3 and then the second cover 20 is moved to the closed position of the electric wire accommodating chamber 3, the second cover 20 is as shown in FIG. 2 (b). Since the rib 12 of the first cover 10 can be visually recognized from the hole 21, the assembling workability is good. As shown in FIG. 2A, even after the protector 1 is assembled, the rib 12 of the first cover 10 can be seen from the hole 21 of the second cover 20, so that the rib 12 is inserted into the hole 21. Can be visually confirmed. That is, it can be visually confirmed that the first cover 10 and the second cover 20 are properly attached.

Since the rib 12 is provided on the outer surface of the overlapping plate portion 11, the rib 12 does not damage the electric wire W in the electric wire accommodating chamber 3. Further, since the rib 12 does not protrude into the electric wire accommodating chamber 3, the accommodating amount of the electric wire W is not reduced by the rib 12.

Since the overlapping plate portions 11 of the first cover 10 overlap each other at the lower positions of the second cover 20 at the closed positions of the first cover 10 and the second cover 20, it is possible to prevent the first cover 10 from rising.

Since the tapered surface 22 is formed on the inner peripheral edge of the hole 21 of the second cover 20, the tapered surface 22 serves as a guide when inserting the rib 12 of the first cover 10 into the hole 21 of the second cover 20. Therefore, the assembly workability is improved.

As shown in FIGS. 4A and 4B, the first cover 10 and the second cover 20 are provided with a hinge portion 5 on one side in the width direction and a lock portion on the other side in the width direction at the curved portion thereof. A lock structure is provided such that 7 is provided and fixed to the protector main body 2. On the other hand, the first cover 10 and the second cover 20 are fixed to the protector main body 2 by providing a hinge portion 5 on one side in the width direction and a lock portion 7 on the other side in the width direction at the curved portion thereof. Since it is difficult to take a lock structure, such a lock structure is not taken. However, in this embodiment, the rib 12 of the first cover 10 is inserted into the hole 21 of the second cover 20 in the curved portion of the protector 1 and is connected to each other by this. Therefore, the protector 1 has a structure having high torsional rigidity, and lateral displacement of the first cover 10 and the second cover 20 can be prevented.

In this embodiment, the rib 12 of the first cover 10 and the hole 21 of the second cover 20 are provided in the curved portion of the protector 1, but may be provided in the linear portion of the protector 1. For example, even if the protector 1 is a linear portion, the lock portion 7 is likely to come off in a portion where a bending moment acts, but by adopting a structure of a rib 12 and a hole 21 at a connecting portion of the two covers, the protector 1 The structure can be made with high torsional rigidity.

In this embodiment, the rib 12 of the first cover 10 protrudes from the height of the outer surface of the second cover 20, but as shown in FIG. 7, a flange portion 12a may be provided at the tip of the rib 12. If the flange portion 12a is provided, the rib 12 will not easily come out from the hole 21 of the second cover 20, an external force will act on the second cover 20 and the protector body 2, and the second cover 20 will move from the closed position of the electric wire accommodating chamber 3. It is possible to prevent it from coming off to the open position side as much as possible.

In this embodiment, the rib 12 of the first cover 10 protrudes from the outer surface height of the second cover, but the rib 12 of the first cover 10 may be the same as or lower than the outer surface height of the second cover. .. With this formation, interference between the rib 12 of the first cover 10 and other members can be avoided, and damage (damage) of the protector 1 due to interference with other members can be prevented as much as possible.

In this embodiment, the rib 12 of the first cover 10 and the hole 21 of the second cover 20 are one set, but may be a plurality of sets.

In this embodiment, the rib 12 of the first cover 10 and the hole 21 of the second cover 20 are rectangular, but may be circular, and the shape of the hole does not matter.

In this embodiment, the first cover 10 and the second cover 20 are integral parts connected to the protector main body 2 via a hinge portion 5, but are separate parts separated from the protector main body 2. You may.

1 Protector 2 Protector body 3 Wire storage chamber 4,13 Jig pin insertion hole 10 1st cover 11 Overlapping plate 12 Rib 20 2nd cover 21 hole 31 Jig pin

Claims (4)

The protector body with the wire storage chamber and
A first cover attached to the protector body and closing the opening surface of the electric wire accommodating chamber,
A second cover attached to the protector body and closing the opening surface of the electric wire accommodating chamber in a region different from the first cover,
A superimposing plate portion provided on the first cover and arranged so as to overlap the lower surface of the second cover at the closed position,
A rib provided on the superimposing plate portion and projecting outward,
A protector provided on the second cover and provided with a hole into which the rib is inserted at a closed position. The protector according to claim 1.
The protector is characterized in that the rib of the first cover and the bottom wall of the protector main body are each provided with a jig pin insertion hole through which a jig pin can penetrate. The protector according to claim 1 or 2.
A protector characterized in that the arrangement path of the wire harness is installed at a curved portion, and the rib of the first cover and the hole of the second cover are arranged at the curved portion. A wire harness having the protector according to any one of claims 1 to 3.