JPS6138348Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a protector for inserting harnesses installed between a base and a lid pivotally attached to the base.

Generally, in the rear structure of an automobile as shown in FIG.
A back door, which is a lid 2, is pivotally attached to the upper part of the base 1 by a hinge 3, and the opening 1a of the base 1 is opened and closed by the lid 2. There is. Moreover, the above-mentioned lid body 2
For example, when attaching a wiper, a washer nozzle, a locking device, etc., harnesses, pipes, wire cables, etc. (hereinafter referred to as harnesses) for energizing, water supplying, and remote control are connected from the base 1. A protector 4 is installed on the lid body 2 and inserted through it to protect the harnesses. The present invention relates to the structure of this protector 4.

As shown in FIGS. 2 and 3, the protector 4 undergoes bending, stretching and twisting deformation in response to the opening/closing operation of the lid 2, and as a result, the harnesses 5 inserted therein also deform. If the radius of curvature of the bend is small, the harness will always be bent at the same position and will be repeatedly bent at this bend, causing the harnesses 5 to break and damage the wiper etc. It may become inoperable.

In view of this, the present invention provides a protector for harnesses that is provided with a stopper that prevents bending deformation at the bent portion and has a large radius of curvature to prevent breakage of the harness.

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4, the protector 4 of the present invention has both ends of a hollow tubular member 6 curved in opposite directions, and furthermore, the ends of the curved portions 6a, 6a are opened in opposite directions. The fitting parts 7, 7 are arranged in series.

The fitting parts 7, 7 have a small diameter engagement part 7a and a large diameter flange part 7b, and a fitting groove 7c is formed between them, and the outer peripheral part of the tip is chamfered to form an inclined surface. On the other hand, the central opening is enlarged at an angle near the end. Incidentally, the outer peripheral edge of the flange portion 7b is provided in a curved manner so as to overhang the outer periphery of the fitting groove 7c.

The fitting parts 7, 7 are fitted and locked into insertion holes 8, 8 of the harnesses 5, respectively, which are bored in the opposing walls of the base body 1 (vehicle body) and the lid body 2 (back door). The engaging portion 7a,
7a into the respective insertion holes 8, 8, and engage the circumferential edges of the insertion holes 8, 8 with the fitting grooves 7c, 7c, and the fitting portions at both ends are held by the engaging portion 7a and the flange portion 7b. 7, 7 are attached to the base body 1 and the lid body 2.

In addition, 9 is a sealing material, 10 is a window glass 11
It is a mounting member.

In the protector 4, plate-shaped stoppers 12, 12 are provided at the inner corners of the curved portions 6a, 6a on both sides of the tubular member 6 to prevent deformation only in the bending direction.
are erected respectively. This stopper 12,
The contact end surfaces 12a, 12a of 12 are the two fitting parts 7, 7
When the curved portions 6a, 6a are bent and deformed,
Contact end surfaces 12a, 12a of the stoppers 12, 12 are provided so as to contact the back surfaces of the fitting portions 7, 7. Abutting end surfaces 12a of the stoppers 12, 12,
Slopes 12b, 12b following 12a are curved portions 6
a, 6a to extend toward the center of the tubular member 6 with a gentle slope.

The protector 4 is entirely made of a flexible elastic material such as rubber, and has a harness 5 inside the tubular member 6.
When inserting the tubular member 6, the fitting parts 7, 7 at both ends should be pulled in opposite directions so that the tubular member 6 and both fitting parts 7, 7 are in a substantially straight line in order to facilitate the work. In this state, the harness 5 is inserted from one end opening to the other end opening in a state in which the tubular member 6 is deformed, and the wall thickness of the tubular member 6 is set so that this deformation is possible.

Therefore, according to the above embodiment, when the lid 2 is closed as shown in FIG. 3 from the open state shown in FIG. 2, the stopper 12 of the protector 4,
12 abuts on the fitting portions 7, 7, respectively, and as shown in FIG. 5, the stoppers 12, 12 prevent bending deformation of the curved portions 6a, 6a, and maintain a large radius of curvature.

That is, if the stoppers 12, 12 are not provided, as shown by the chain lines in FIG.
The curved portions 6a, 6a are bent further than the right angle, and the inner corner portions are bent at an acute angle, and the other tubular member 6 is hardly deformed. ，
The radius of curvature of 6a becomes locally small, and the harnesses 5 inserted therein also become curved at the curved portions 6a, 6a.
It will be bent below a right angle. on the other hand,
When the stoppers 12, 12 are provided, as shown by solid lines, the stoppers 12, 12 prevent deformation in the bending direction in which the radius of curvature of the curved portions 6a, 6a becomes smaller, and at the same time, the fitting portions 7, 7 With the support of the stoppers 12, 12 which are in contact with the curved portions 6a, 6a, the tubular shape is deformed from the curved portions 6a, 6a to the straight tubular portion 6 so as to be flattened. Therefore, the tubular member 6 is deformed as a whole into a substantially S-shape, and local deformation of the curved portions 6a, 6a is dispersed into deformation with a large overall radius of curvature.
Bending deformation of the internal harnesses 5 is alleviated.

Conversely, when the lid body 2 is opened from the closed state shown in FIG. 3 to the open state shown in FIG. , 12 have almost no effect on this deformation. Furthermore, when the harnesses 5 are inserted into the tubular member 6, the stoppers 12 have almost no effect on the deformation of the tubular member 6 into a substantially straight line.

In the above embodiment, the stoppers 12, 12 are brought into contact with the fitting parts 7, 7, but they may be brought into contact with the base body 1. Further, even if the stoppers 12, 12 are provided on the fitting portions 7, 7 side, contrary to the above embodiment, the same effect as described above can be obtained.

As described above, according to the protector of the present invention, stoppers are provided at the inner corners of the curved portions at both ends of the tubular member to prevent deformation only in the bending direction.
Due to the bending and stretching deformation that occurs when the lid is opened and closed, the deformation of the curved portion where the radius of curvature becomes small is eliminated, and the bending deformation of the harnesses due to repeated deformation over a long period of time is alleviated, and damage to the harnesses is prevented, greatly increasing durability. It is possible to make significant improvements.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the present invention, and FIG. 1 is a perspective view of the main parts showing the base body and lid with the protector attached, and FIG. 2 is a sectional view showing the deformation of the protector when the lid is opened. , FIG. 3 is a sectional view of the protector showing deformation when the lid is closed, FIG. 4 is a longitudinal sectional view of the protector, and FIG. 5 is a sectional view of essential parts of the protector showing the deformed state. DESCRIPTION OF SYMBOLS 1... Base body, 1a... Opening, 2... Lid body, 3...
...Hinge, 4...Protector, 5...Harnesses, 6...Tubular member, 6a...Curved portion, 7...
Fitting part, 7a... Engagement part, 7b... Flange part,
7c... Fitting groove, 8... Insertion hole, 12... Stopper, 12a... Contact end surface, 12b... Slope.

Claims (1)

[Scope of utility model registration request] In a protector through which harnesses are inserted between a base body having an opening and a lid body pivotally connected to the base body and opening and closing the opening, both ends of the tubular member are curved, and the base body is attached to both curved ends. forming a fitting part that fits and locks into the insertion hole of the harness, which is provided on the facing surface of the and the lid, respectively;
A protector for harnesses, characterized in that a stopper is provided at an inner corner of the curved portion to prevent deformation only in the bending direction, and the harness is installed by passing through the inside of the tubular member.