JP2002325347A - Housing apparatus for extra length flat wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an extra length flat wire harness housing apparatus that prevents foreign matters from mixing thereinto. SOLUTION: The apparatus comprises a cabinet 27, that houses an extra length 26 of flat wire harness 22 in which the extra length 26 of the flat wire harness 22 passes meandering its way therethrough and in which a passage 32 is provided to the face and the reverse surface of the extra length 26 of the flat wire harness to be in contact therewith at respectively different locations. Furthermore, a spring 33 and a movable body 34 collectively as a draw-in means are provided that pull the extra length 26 of the flat wire harness 22 in its draw-in direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat wire harness for absorbing a surplus length of a flat wire harness between a main body and a moving body with at least a surplus length necessary for moving the moving body. Related to the device.

[0002]

2. Description of the Related Art As this kind of flat wire harness excess length absorbing device, one shown in FIG. 8 is known. That is, the flat wire harness excess length absorbing device 1 has a housing 6 that stores a slack portion (excess length) 5 of the flat wire harness 4 that is routed across the vehicle body 2 and the door 3 of the automobile. It is attached to the vehicle body 2 via the housing 6.

A movable end side through-hole 7 is formed in one side wall of the housing 6 for the slack portion 5 pulled out from the housing 6 with the opening operation of the door 3. Reference numeral 8 is a hinge, 9 is a curved portion of the slack portion 5, 10 is a spring for pulling the slack portion 5, 11 and 12 are hook portions with respect to the spring 10, and 13 is an opening inside the vehicle body 2. Fixed end side through holes 14 indicate fixing members of the flat wire harness 4 provided in the fixed end side through hole 13.

[0004]

However, in the above prior art, since the movable end side through-hole 7 merely penetrates one side wall of the housing 6, the following problem arises. there were. That is, since there is a gap between the movable end side through-hole 7 and the flat wire harness 4 that is required for pulling out and pulling back, foreign substances (dust, water, etc.) adhered to the flat wire harness 4 are there. , And may cause problems such as wear and poor insulation.

[0005] The present invention has been made in view of the above-mentioned circumstances, and has as its object to provide a flat wire harness excess length absorbing device capable of preventing foreign matters from being mixed therein.

[0006]

According to the first aspect of the present invention, there is provided a flat wire harness excess length absorbing apparatus comprising: a main body and a movable body movably attached to the main body; A flat wire harness excess length absorbing device for arranging a flat wire harness at least with an extra length necessary for moving the movable body, wherein the extra length of the flat wire harness is stored. And the housing is provided with a passage through which the surplus length meanders and the front and back surfaces of the surplus length contact each other at different positions.

According to a second aspect of the present invention, there is provided a flat wire harness excess length absorbing apparatus, wherein at least the flat wire harness is moved between the main body and a moving body movably attached to the main body. A flat wire harness excess length absorbing device for routing with a necessary extra length at the time, comprising a housing for storing the extra length of the flat wire harness, wherein the housing includes It is characterized in that there is provided a passage in which the surplus length meanders and the front surface and the back surface of the surplus length contact each other at different positions, and a retraction means for pulling the surplus length in a retraction direction.

According to a third aspect of the present invention, there is provided the flat wire harness excess length absorbing device, wherein a curved portion is formed by forcibly applying an external force between the main body and the movable body movably attached to the main body. Then, a flat wire harness excess length absorbing device for laying out a flat wire harness that generates a restoring force that attempts to return naturally to a linear shape with at least an extra length necessary for moving the moving body, A housing for storing the extra length of the flat wire harness having the curved portion, wherein the extra length is meandering and the front and back surfaces of the extra length are different from each other. It is characterized in that a passage for contacting at a position is provided.

According to a fourth aspect of the present invention, there is provided the flat wire harness excess length absorbing device according to any one of the first to third aspects, wherein the front surface and the rear surface of the passage are in contact with each other. The shape of the portion to be formed is characterized by being formed according to the shape of the front surface and the back surface.

According to a fifth aspect of the present invention, there is provided the flat wire harness excess length absorbing device according to any one of the first to third aspects, wherein the extra length in the housing and the passage is provided. It is characterized in that the long bending direction is reversed.

According to the first aspect of the present invention,
The extra length of the flat wire harness passes through the passage while meandering. Further, the surplus front surface and the back surface contact the passage at different positions. This prevents the extraneous matter adhering to the extra length from entering the housing. In addition, entry of foreign matter floating in the air into the housing is also prevented.

According to the second aspect of the present invention,
The extra length of the flat wire harness passes through the passage while meandering. Further, the surplus front surface and the back surface contact the passage at different positions. Further, the contact state of the extra length front and rear surfaces with the passage is improved by the pulling of the retraction means. This prevents the extraneous matter adhering to the extra length from entering the housing. In addition, entry of foreign matter floating in the air into the housing is also prevented.

According to the third aspect of the present invention,
The extra length of the flat wire harness passes through the passage while meandering. Further, the surplus front surface and the back surface contact the passage at different positions. Furthermore, the restoring force of the flat wire harness improves the state of contact with the excessively long front and back paths. This prevents the extraneous matter adhering to the extra length from entering the housing. In addition, entry of foreign matter floating in the air into the housing is also prevented.

According to the present invention as set forth in claim 4,
The contact area of the extra long front and rear surfaces with the passage is increased. As a result, the prevention of foreign matter is more reliably prevented.
Further, reliability is improved.

According to the fifth aspect of the present invention,
The elasticity of the flat wire harness is prevented from lowering.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing an example of mounting a flat wire harness excess length absorbing device of the present invention.
FIG. 2 is an external perspective view showing an embodiment of a flat wire harness excess length absorbing device according to the present invention, and FIG.
FIG. 4 is an external perspective view of the housing in FIG.

In FIG. 1, reference numeral 21 denotes a flat wire harness excess length absorbing device. The flat wire harness excess length absorbing device 21 connects the flat wire harness 22 to the vehicle body 24 of the automobile 23 and the door body 25.
Between the flat wire harness 22 and the flat wire harness 22 including at least the extra length 26 required by the opening operation of the door body 25 (absorbing). It has a housing 27 that houses the middle.

The vehicle body 24 corresponds to the body described in the claims (the same applies hereinafter in this specification). In addition, the door body 25 which can be opened and closed (movable, that is, moved by an open operation and returned by a close operation) with respect to the vehicle body 24 corresponds to a moving body described in the claims (in this specification). same as below). The door body 25 includes a driver seat, a passenger seat, a rear seat door or a slide door, or a rear hatch (in FIG. 1, a driver seat door is exemplified).

In any one of FIGS. 2 to 4, the housing 27 includes a synthetic resin housing main body and a lid, not shown. Also, the housing 27 has
An accommodation space 28 for accommodating the middle of the flat wire harness 22 including the extra length 26, a fixed end side through hole 30 for the fixed end side 29 of the flat wire harness 22 continuing to the extra length 26, and a flat space continuing to the extra length 26. A passage 32 for the movable end 31 of the wire harness 22 is formed.

The storage space 28 is provided with a spring 33 and a movable body 34 as pulling means for pulling the extra length 26 in the pulling direction (the direction of the arrow pointing to the left). One end of the spring 33 is attached to the side wall of the housing 27. The other end is attached to the movable body 34.
The movable body 34 has a curved surface that is in close contact with the curved portion 35 having the extra length 26, and moves in the storage space 28 in the direction of the arrow. If the urging force of the spring 33 is always applied to the extra length 26, the slack of the movable end 31 of the flat wire harness 22 can be prevented, and the passage 32
And the extra length 26, which will be described later, can be maintained in a favorable state.

The fixed end side through hole 30 is formed above the side wall of the housing 27. Further, it is formed on the side wall opposite to the side wall where the passage 32 is formed.

The passage 32 is formed below the side wall of the housing 27. Further, the passage 32 is formed such that the extra length 26 passing through the passage 32 passes while meandering. Further, the passage 32 is formed such that the front surface and the back surface of the surplus length 26 passing therethrough contact each other at different positions.

Here, the structure of the passage 32 will be described in more detail (assuming that the structure can be imagined). The passage 32 has a through hole 36 formed in the side wall of the housing 27, and The horizontal wall 3 of an appropriate length extends inward and outward from the upper edge of the hole 36, that is, along the direction of the arrow.
7 and 37, and furthermore, at each end of the horizontal walls 37, 37, convex portions 38, 38 projecting downward are formed (the convex portions 38, 3).
8 is preferably the same or slightly lower than the position of the lower edge of the through hole 36), and passes through in a meandering state such that the extra length 26 curves upward. At this time, the structure is such that the front end portions of the convex portions 38, 38 and the lower end edge of the through hole 36 contact the front and back surfaces of the extra length 26 (the effect of wear is assumed to be no problem).

If the passage of the extra length 26 (drawing and pulling back (pulling in)) does not hinder, the space where the passage 32 bends may be slightly increased in the direction of the arrow. In addition, it is assumed that the bend of the passage 32 is formed in accordance with the bending direction of the curved portion 35 having the extra length 26 (in the case of the present embodiment, the extra length 26 in the passage 32 is bent so as to be curved upward ( The bending direction in the housing 27 having the extra length 26 is downward when viewed in the horizontal direction, that is, opposite to the bending direction in the passage 32. This prevents the elasticity of the flat wire harness 22 from lowering. The same applies to a flat wire harness excess length absorbing device 41 described later with reference to FIG.

The operation of the flat wire harness excess length absorbing device 21 in the above configuration will be described with reference to FIGS.

The flat wire harness excess length absorbing device 21 is attached to the door body 25 by an appropriate fixing means (may be attached to the vehicle body 24). A terminal connector (connector) is provided at a movable end (not shown) of the flat wire harness 22 and is connected to a wire harness or the like arranged on the vehicle body 24 by a connector. Further, it is assumed that a fixed end (not shown) of the flat wire harness 22 is connected to a load of the door body 25 or the like.

When the door body 25 is opened and moved relative to the vehicle body 24, the extra length 26 of the flat wire harness 22 is pulled out of the passage 32 in the direction of the arrow pointing rightward. At this time, the excess length 26 passing through the passage 32 passes while meandering in a state where the front surface and the back surface are in contact with each other. On the other hand, when the door body 25 is closed and moved with respect to the vehicle body 24, the door body 25 returns to the original position, and accordingly, the extra length 26 is pulled back through the passage 32 (the spring 33 and the movable body 34). (Smoothly pulls back (pulls in) in the direction of the arrow pointing to the left). At this time, the excess length 26 passing through the passage 32 passes while meandering in a state where the front surface and the back surface are in contact with each other.

Even if foreign matter (including moisture) adheres to the extra length 26 in the pulled-out state, the passage 32
The structure described above prevents the contamination (the foreign substances are dropped). Further, if the contact state between the front surface and the back surface of the extra length 26 is maintained, entry of foreign matter floating in the air is also prevented. The horizontal wall 37 and the convex portion 38 also prevent water droplets from entering from above.

Next, another embodiment of the flat wire harness excess length absorbing device according to the present invention will be described with reference to FIG. FIG. 5 is a cross-sectional view of another embodiment. Note that components that are basically the same as the components in the above-described embodiment are given the same reference numerals, and descriptions thereof will be omitted. The attachment is the same as in the above embodiment.

Referring to FIG. 5, a flat wire harness excess length absorbing device 41 according to another embodiment includes a flat wire harness 42 and a vehicle body 24 (see FIG. 1) and a door body 25 of an automobile 23 (see FIG. 1). (See FIG. 1), the extra length 43 required by the opening operation of the door body 25.
A flat wire harness 4 including at least the surplus length 43.
It has a housing 44 that houses the middle of the two.

It is assumed that the flat wire harness 42 generates a restoring force to return naturally to a linear shape when a curved portion is formed by forcibly applying an external force.

Although not particularly shown, the housing 44 includes a housing body and a lid made of a synthetic resin in the same manner as described above. Further, the housing 44 includes a storage space 45 for storing the middle of the flat wire harness 42 including the extra length 43,
The fixed end side through-hole 30 for the fixed end side 46 of the flat wire harness 42 continuing to the extra length 43 and the passage 32 for the movable end side 47 of the flat wire harness 42 continuing to the extra length 43 are formed. In the storage space 45,
The extra length 43 in which the curved portion 48 is formed by forcibly applying an external force is stored.

The storage space 45 has a bent portion 48 in which the surplus length 43 is drawn out through the passage 32 and the bending radius is reduced, and the pulled out surplus length 43 is returned through the passage 32 by the restoring force. , And has a space having a size corresponding to each of the curved portions 48 in which the bending radius is increased.

The operation of the flat wire harness excess length absorbing device 41 in the above configuration will be described with reference to FIGS.

When the door body 25 is opened and moved relative to the vehicle body 24, the extra length 43 of the flat wire harness 42 is pulled out from the passage 32 in the direction of the arrow pointing rightward. At this time, the surplus length 43 passing through the passage 32 passes while meandering in a state where the front surface and the back surface are in contact with each other. In addition, when the extra length 43 is pulled out, the bending radius of the bending portion 48 decreases, and the bending portion 48 moves in the direction of the arrow pointing rightward.

On the other hand, when the door body 25 is closed and moved with respect to the vehicle body 24, the door body 25 returns to the original position, and accordingly, the extra length 43 is pulled back through the passage 32 (the restoring force). (Smoothly pulls back (pulls in) in the direction of the arrow pointing to the left). At this time, the surplus length 43 passing through the passage 32 passes while meandering in a state where the front surface and the back surface are in contact with each other. When the extra length 43 is pulled back, the bending portion 48 has a large bending radius and moves in the direction of the arrow pointing to the left.

Even if foreign matter (including moisture) adheres to the extra length 43 in the pulled-out state, the passage 32
The structure described above prevents the contamination (the foreign substances are dropped). In addition, if the contact state between the front surface and the back surface of the extra length 43 is maintained, entry of foreign matter floating in the air is also prevented. Needless to say, the restoring force has an effect on the contact between the passage 32 and the front and back surfaces of the extra length 43.

Next, another embodiment of the flat wire harness excess length absorbing device according to the present invention will be described with reference to FIGS. 6 and 7. FIG. FIG. 6 is an external perspective view of still another embodiment, and FIG. 7 is an external perspective view of a housing in FIG. The attachment is the same as in each of the above embodiments.

6 and 7, a flat wire harness excess length absorbing device 5 as still another embodiment is shown.
1 is the flat wire harness excess length absorbing device 21 described above.
Is basically the same as the structure of (with the same action and effect),
Only the shape of a portion 53 of the passage 32 where the front and back surfaces of the flat wire harness (ribbon electric wire) 52 are in contact is different. That is, the shape of the contacting portion 53 is formed in a corrugated shape according to the shape of the front and back surfaces of the flat wire harness 52 (the flat shape in the flat wire harness excess length absorbing device 21 described above).

As described above, by forming the shape of the contacting portion in the passage in conformity with the shape of the front and back surfaces of the flat wire harness, the contact area is enlarged, and the prevention of the entry of foreign substances is more reliably prevented. It works. In addition, there is an effect that the reliability is improved.

In addition, it goes without saying that the present invention can be variously modified within the scope of the present invention. That is, the main body and the moving body are not limited to those described above, and the main body and the seat of the automobile (limited to sliding seats), the main body and the telescopic (and tilt) of the automobile, or the instrument panel and the audio unit of the automobile (or the air conditioning unit, Meter unit).

[0042]

As described above, according to the first aspect of the present invention, it is possible to prevent foreign matters adhering to the extra length of the flat wire harness from being mixed into the housing. In addition, it is possible to prevent foreign matters floating in the air from entering the housing.

According to the second aspect of the present invention,
It is possible to prevent foreign matter adhering to the extra length of the flat wire harness from being mixed into the housing. In addition, it is possible to prevent foreign matters floating in the air from entering the housing.

According to the third aspect of the present invention,
It is possible to prevent foreign matter adhering to the extra length of the flat wire harness from being mixed into the housing. In addition, it is possible to prevent foreign matters floating in the air from entering the housing.

According to the fourth aspect of the present invention,
In addition to the effects of any one of claims 1 to 3,
It is possible to more reliably prevent foreign matters from being mixed and improve reliability.

According to the fifth aspect of the present invention,
In addition to the effects of any one of claims 1 to 3,
It is possible to prevent a decrease in the elasticity of the flat wire harness.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of mounting a flat wire harness excess length absorbing device according to the present invention.

FIG. 2 is an external perspective view showing an embodiment of a flat wire harness excess length absorbing device according to the present invention.

FIG. 3 is a longitudinal sectional view of FIG.

FIG. 4 is an external perspective view of a housing in FIG. 2;

FIG. 5 is a sectional view showing another embodiment of the flat wire harness excess length absorbing device according to the present invention.

FIG. 6 is an external perspective view showing still another embodiment of the flat wire harness excess length absorbing device according to the present invention.

7 is an external perspective view of a housing in FIG.

FIG. 8 is a sectional view of a conventional flat wire harness excess length absorbing device.

[Explanation of symbols]

 Reference Signs List 21 Flat wire harness excess length absorbing device 22 Flat wire harness 24 Body body (main body) 25 Door body (moving body) 26 Extra length 27 Housing 28 Storage space 29 Fixed end side 30 Fixed end side through hole 31 Movable end side 32 Passage Reference Signs List 33 spring (retracting means) 34 movable body 35 curved portion 36 through hole 37 horizontal wall 38 convex portion 41 flat wire harness extra length absorbing device 42 flat wire harness 43 extra length 44 housing 45 storage space 46 fixed end side 47 movable end side 48 Curved section

Claims (5)

[Claims] 1. A flat wire harness for routing a flat wire harness between a main body and a movable body movably attached to the main body with at least an extra length necessary for moving the movable body. A flat wire harness surplus length absorbing device, comprising: a housing for storing the surplus length of the flat wire harness, wherein the surplus meanders and meanders, and the surplus length surface and A flat wire harness excess length absorbing device, wherein a passage is provided in which the back surface contacts at different positions. 2. A flat wire harness having at least an extra length required for moving the moving body between a main body and a moving body movably attached to the main body. A flat wire harness surplus length absorbing device, comprising: a housing for storing the surplus length of the flat wire harness, wherein the surplus meanders and meanders, and the surplus length surface and A flat wire harness excess length absorbing device, comprising: a passage in which the back surfaces contact each other at different positions; and a pull-in means for pulling the excess length in a pull-in direction. 3. A flat wire that generates a restoring force that attempts to return naturally to a straight line when a curved portion is formed by forcibly applying an external force between the main body and a movable body movably attached to the main body. A flat wire harness surplus length absorbing device for arranging a harness with at least a surplus length necessary for moving the moving body, wherein the surplus length of the flat wire harness forming the curved portion A flat wire having a passage through which the surplus length meanders and the front and back surfaces of the surplus length contact each other at different positions. Harness surplus absorption device. 4. The flat wire harness excess length absorbing device according to claim 1, wherein a shape of a portion of the passage where the front surface and the rear surface come into contact is matched with the shapes of the front surface and the rear surface. A flat wire harness excess length absorbing device characterized by being formed by: 5. The flat wire harness excess length absorbing device according to claim 1, wherein a bending direction of the excess length in the housing and in the passage is reversed. Harness extra length absorption device.