JP2002325348A - Housing apparatus for extra length of flat wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a housing apparatus for extra length of flat wire harness that is of simple structure and compact size, and enables smooth drawing-in of the extra length. SOLUTION: The housing apparatus 21 for extra length of flat wire harness is constituted of a center part 25, that is wound in a spiral shape having a curved portion and which is located at the center of a swirled part 23, whose inside is communicated with a fixed end side 28 of flat wire harness 22 and whose outside is communicated with a movable end side 29 of flat wire harness 22, of a wound state maintaining part 24, that regulates the swirled part 23 from dropping from the center part 25, while maintaining the swirled state thereof, and of a movable end part pull-out mouth 26 that guides the movable end side 29 of flat wire harness, when it is pulled out and pulled back in.

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 having a structure as shown in FIG. 9 is known. That is, the harness receiving portion 3 is formed between the door panel 1 and the door trim 2, and the flat wire harness 4 routed along the door panel 1 or the door trim 2 is bent into a substantially S shape in the harness receiving portion 3 and contracted. ,
A flat wire harness extra length for connecting the tip end of the flat wire harness 4 to the connector 6 at the front of the harness protector 5 and extending the wire harness bending portion 4a in the harness housing 3 as the harness protector 5 moves forward. Absorbers are known.

The harness receiving section 3 includes, for example, a tapered wall 7 bulging from the door trim 2 to the door panel 1 side,
A harness storage case 10 having a front wall 8 suspended from the front end of the tapered wall 7 and upper and lower walls (upper and lower walls) 9 suspended from the tapered wall 7 and the front wall 8 toward the door trim 2.
It consists of. A harness storage chamber 11 is formed in the harness storage case 10.

A harness fixing portion 12 is provided near the front end of the tapered wall 7. The harness fixing part 12
Is a curved surface 1 which is formed in a columnar shape and has a round shape.
2a, and a harness insertion gap exists between the taper wall 7 and the upper and lower walls 9, for example.
The upper end is fixed. On the upper and lower walls 9,
A guide hole 13 for guiding the harness protector 5 is formed in the longitudinal direction.

The harness protector 5 is made of a synthetic resin and is formed, for example, in a U-shape in cross section. The front end of the harness protector 5 has a connector 6 to which the flat wire harness 4 is connected. A cylindrical guide roller 15 is rotatably provided on the slide shaft 14. The guide roller 15 is
The guide hole 13 is moved integrally with the slide shaft 14.

[0006] The flat wire harness 4 is routed from the rear along the tapered wall 7, and the harness fixing portion 1 is provided.
2, is folded along the curved surface 12 a, is bent and folded along the guide roller 15, passes through the harness protector 5, and is connected to the connector 6. The connector 6 is connected to a connector of a wire harness (not shown) on the vehicle body.

[0007] Harness fixing portion 12 and guide roller 15
Are located at the same position, and the sliding amount L of the harness protector 5, that is, the extendable and retractable stroke (corresponding to the extra length) of the flat wire harness 4 is, for example, about 200 mm. . Then, when the harness protector 5 and the flat wire harness 4 are pulled out from the harness housing 3 as shown by the imaginary line B in the drawing with the opening operation of the door, the guide roller 15 also advances integrally with the harness protector 5, The wire harness bent portion 4a of the flat wire harness 4 is separated from the guide roller 15 and remains in a substantially U-shape as shown by a virtual line C in the harness storage portion 3.

On the other hand, when the door is closed, the harness protector 5 is accommodated in the harness accommodating portion 3 as shown by the solid line in the figure, and at the same time, the flat wire harness 4 is pushed by the guide roller 15 to accommodate the harness. The part 3 is pushed back (pulled in) to the rear end side. The flat wire harness 4 is housed in the harness housing 3 in a state where the flat wire harness 4 is stretched in a substantially S-shape with almost no slack.

[0009]

In the above-mentioned prior art, the flat wire harness 4 and the guide roller 15 are connected to the flat wire harness 4 in order to smoothly pull out the flat wire harness 4 drawn out into the harness receiving section 3. It was an essential component of the extra length absorbing device (in other words, since there was no mechanism for smoothly drawing in the flat wire harness 4, the harness protector 5, the guide roller 15, and the like were essential components. ). As a result, not only the number of constituent members is increased and the structure is complicated, but also the flat wire harness excess length absorbing device is disadvantageously increased in size.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a flat wire harness excess length absorbing device that has a small number of components, a simple structure, is small, and can smoothly draw in excess length. As an issue.

[0011]

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; In the meantime, a flat wire harness 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 is provided with at least an extra length necessary for moving the moving body. A flat wire harness excess length absorbing device for ropes, wherein the flat wire harness is wound in a spiral shape having the curved portion, an inner side is continuous with a fixed end side of the flat wire harness, and an outer side is a movable end of the flat wire harness. A central portion located at the center of the spiral portion in the middle of the flat wire harness continuous to the side, and a vortex that restricts the spiral portion from falling off from the central portion; The flat wire harness is configured to have a winding state maintaining portion that maintains a wound state, and a movable end drawer port that guides the movable end side when the flat wire harness is pulled out and pulled back on the movable end side. It is characterized by doing.

According to a second aspect of the present invention, there is provided the flat wire harness excess length absorbing device according to the first aspect, wherein the inside of the spiral portion and the fixed end of the flat wire harness are provided. It is characterized by further comprising a support portion for supporting a continuous portion with the side immovably.

According to a third aspect of the present invention, there is provided the flat wire harness excess length absorbing device according to the first or second aspect, provided at the movable end of the flat wire harness. It is characterized by further comprising a locking portion for locking the connector.

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 flat wire harness is bent at the center portion. It is characterized in that an arc whose radius can be regulated is formed.

According to the first aspect of the present invention,
A center portion of the flat wire harness, which is located at the center of the spiral portion, a winding state maintaining portion that regulates dropping from the center of the spiral portion and maintains a spiral state of the spiral portion, and a flat wire harness And a movable end draw-out port for guiding the movable end side of the flat wire harness. In such a configuration, when the movable end side of the flat wire harness is pulled out from the movable end draw-out port by the movement of the moving body, the bending radius of the spiral portion is centered on the central portion in a state against the restoring force of the flat wire harness. Become smaller. After that, when the movable body returns to the original position and the movable end side of the flat wire harness is pulled back through the movable end draw-out port, the bending radius of the spiral portion increases around the center portion due to the restoring force of the flat wire harness. Become. Since the restoring force is always generated in the spiral portion of the flat wire harness, the middle portion of the flat wire harness in the flat wire harness excess length absorbing device does not loosen. Further, when the movable body returns to its original position, the movable end side of the flat wire harness pulled out from the movable end drawing port when the movable body is moved is smoothly pulled back by the restoring force of the flat wire harness. Since the flat wire harness excess length absorbing device utilizes the restoring force of the flat wire harness, the flat wire harness can be smoothly pulled back. Further, a configuration with a small number of members is realized. Furthermore, a simplified structure is realized. Furthermore, the length of the flat wire harness at the movable end can be set to be long, so that downsizing and long stroke can be realized.

According to the second aspect of the present invention,
The continuous portion between the inside of the spiral portion and the fixed end side of the flat wire harness is immovably supported by the support portion.
Not only is the position of the spiral part and the spirally wound state stabilized, but even if the movable end side of the flat wire harness is pulled out excessively, the influence on the fixed end side of the flat wire harness is not affected. Absent.

According to the third aspect of the present invention,
During transportation (delivery) or storage of the flat wire harness excess length absorbing device alone, the connector provided at the movable end of the flat wire harness is locked. The movable end side of the flat wire harness is not accidentally pulled out.

According to the present invention described in claim 4,
When the movable end side of the flat wire harness is pulled out and the bending radius of the spiral part decreases around the center,
The bending radius of the flat wire harness is regulated.
The bending fatigue of the flat wire harness is reduced.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an embodiment of the flat wire harness excess length absorbing device of the present invention. FIG. 2 is an external perspective view of the flat wire harness excess length absorbing device of FIG. 1, and FIG. 3 is an explanatory diagram of the flat wire harness.

In FIGS. 1 and 2, reference numeral 21 denotes a flat wire harness excess length absorbing device. The flat wire harness excess length absorbing device 21 has (absorbs) the flat wire harness 22 between a vehicle body (not shown) and a door body at least having an excess length required by an opening operation of the door body. The center portion 25 and the movable end draw-out port 26 are provided for the middle spiral portion 23 of the flat wire harness 22 including the extra length, and are provided for the wiring. Is configured.

It is to be noted that the vehicle body corresponds to the body described in the claims (the same applies hereinafter in this specification). Further, the door body which can be opened and closed (movable, that is, moved by an opening operation and returned by a closing operation) with respect to the vehicle body corresponds to the moving body described in the claims (in this specification). same as below). Examples of the door body include a driver seat, a passenger seat, a rear seat door and a slide door, or a rear hatch.

First, the flat wire harness 22 will be described, and then the respective components of the flat wire harness excess length absorbing device 21 will be described.

As shown in FIG. 3, it is assumed that the flat wire harness 22 generates a restoring force to return naturally to a straight line when the curved portion 27 is formed by forcibly applying an external force. When the curved portion 27 is wound in a continuous spiral shape, the spiral portion 23 shown in FIGS. 1 and 2 can be formed. Further, it is assumed that a plurality of circuits are arranged along the longitudinal direction.

The spiral part 23 is spirally wound at least twice and formed in the middle of the flat wire harness 22, and the inside of the spiral part 23 is fixed at the fixed end side 28 of the flat wire harness 22 (at the fixed end). (Not shown). Further, the outside of the spiral portion 23 is continuous with the movable end side 29 (the movable end is not shown) of the flat wire harness 22.

A continuous portion between the inside of the spiral portion 23 and the fixed end side 28 of the flat wire harness 22 is folded so as to form a triangular overlap 30 as shown in FIG. Further, by the folding, the front and back surfaces of the flat wire harness 22 on the fixed end side 28 are arranged vertically, and the front and back surfaces of the spiral portion 23 and the flat wire harness 22 on the movable end side 29 are arranged horizontally. .

Flat wire harness excess length absorbing device 2
The first wound state maintaining unit 24 includes a main body 31 and a cover 32. The main body 31 has a flat bottom wall 33 extending in the horizontal direction and a flat side wall 34 coupled to one side of the bottom wall 33 and extending in the vertical direction.

The bottom wall 33 is made of the flat wire harness 2.
2 and longer than the maximum diameter of the spiral part 23. In addition, the side wall 34 has the spiral part 2.
3 is formed higher than the maximum diameter. The side wall 34 has a support 35 and a guide wall 36 perpendicular to the side wall 34.
Are formed.

The supporting portion 35 is provided with the overlapping portions 30 of the triangles.
Alternatively, it is a portion that immovably supports the periphery thereof, and is formed so that the flat wire harness 22 can be sandwiched therebetween. Further, it is formed so as to protrude from substantially the center of the side wall 34 (at least the width of the flat wire harness 22).

The guide wall 36 has a surface parallel to the front and back surfaces of the flat wire harness 22 on the movable end side 29, and protrudes from the end of the side wall 34 (at least the width of the flat wire harness 22). Is formed.
Further, it is formed at a position having a predetermined interval (at least the thickness of the flat wire harness 22 or more) with respect to the bottom wall 33.

The cover 32 has a base 37 overlapping the other side of the bottom wall 33, a flat side wall 38 substantially at the center of the base 37 and extending along the vertical direction, and an end of the side wall 38. And a flat upper wall 39 along the horizontal direction.

The base 37 has a projection 40 which is in contact with the end of the guide wall 36 and closes the above-mentioned predetermined space from the side. The convex portion 40 constitutes the movable end outlet 26 with the guide wall 36 and the bottom wall 33. The movable end drawing port 26 guides the movable end side 29 when the movable end side 29 of the flat wire harness 22 is pulled out and pulled back.

The side wall 38 has a substantially rectangular shape unlike the side wall 34 of the main body 31, and has a central portion 25 near its center.
(Formed so as to project at least the width of the flat wire harness 22). The center part 25 is columnar and is located at the center of the spiral part 23, and the step part 41 and the arc 42 are integrally formed. The step portion 41 is formed according to the position of the support portion 35. The arc 42 is for restricting the bending radius of the flat wire harness 22 (to prevent the flat wire harness 22 from bending at the minimum bending radius or less for ensuring reliability), and for reducing the bending fatigue of the flat wire harness 22.

The upper wall 39 is a flat wire harness 2
2 are formed longer than the width of the side wall 3 of the main body 31.
4. Further, the upper wall 39 has a function of regulating the maximum diameter of the spiral part 23.

It is to be noted that the main body 3 is placed with the spiral portion 23 therebetween.
When the flat wire harness excess length absorbing device 21 is assembled by superimposing the cover 1 and the cover 32 and fixing them with a lock (not shown) or the like, the side wall 34 and the side wall 38 prevent the spiral portion 23 from falling off from the central portion 25. It has become so. Also, the side wall 34, the side wall 38, the upper wall 39,
In addition, the state where the spiral portion 23 is spirally wound by the support portion 35 is maintained.

The operation of the flat wire harness excess length absorbing device 21 in the above configuration will be described with reference to FIG. FIG. 4A is an explanatory view of an expanded state when the movable end side of the flat wire harness is pulled out, and FIG. 4B is an explanatory view of a contracted state when the movable end side of the flat wire harness is pulled back.

It is assumed that the flat wire harness excess length absorbing device 21 is attached to the door body by an appropriate fixing means (it may be attached to the vehicle body). 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. Further, it is assumed that a fixed end (not shown) of the flat wire harness 22 is connected to a load or the like of the door body.

In FIG. 4A, when the door body is opened and moved with respect to the vehicle body, the movable end side 29 of the flat wire harness 22 is moved to the movable end outlet 26.
From the direction of the arrow. At this time, the movable end side 29 of the flat wire harness 22 is
Guided by Then, when the movable end side 29 of the flat wire harness 22 is pulled out, the bending radius of the spiral portion 23 becomes smaller around the center portion 25 in a state where it resists the restoring force of the flat wire harness 22.

It is assumed that the flat wire harness 22 is
Even if the movable end 29 of the flat wire harness 22 is excessively pulled out for some reason, the fixed end 28 of the flat wire harness 22 is not affected.

In FIG. 4B, when the door body is closed and moved with respect to the vehicle body, the door body returns to the original position, and the movable end side 29 of the flat wire harness 22 is thereby moved. The flat wire harness 22
Is pulled back through the movable end draw-out port 26 (pulled back in the direction of the arrow). Then, when the movable end side 29 of the flat wire harness 22 is pulled back, the bending radius of the spiral portion 23 increases around the center portion 25 and returns to the original state. The movable end 29 of the flat wire harness 22 is smoothly pulled back by the restoring force of the flat wire harness 22.

4 (a) and 4 (b), the above-mentioned restoring force is always generated in the spiral portion 23 of the flat wire harness 22. Therefore, the flat wire harness 22 does not loosen.

As described above, the flat wire harness excess length absorbing device 21 is provided with the flat wire harness 2.
2 can be smoothly returned. Further, it can be configured with a small number of members. Further, the structure can be simplified. Furthermore, the size can be reduced as compared with the conventional example.

On the other hand, if the number of turns of the spiral portion 23 is set to be large, the length of the flat wire harness 22 that can be pulled out from the movable end 29 can be increased. Therefore, it is possible to increase the stroke without increasing the size of the flat wire harness excess length absorbing device 21.

Next, another embodiment and operation of the flat wire harness excess length absorbing device according to the present invention will be described with reference to FIG. FIG. 5A is an explanatory view of an expanded state when the movable end side of the flat wire harness is pulled out, and FIG. 5B is a contracted state and locking of the terminal connector when the movable end side of the flat wire harness is pulled back. It is explanatory drawing of a state.

In FIG. 5A, reference numeral 51 denotes a spiral portion 23 of the same flat wire harness 22 as described above.
1 shows a synthetic resin flat wire harness excess length absorbing device provided for (see FIG. 1). The flat wire harness excess length absorbing device 51 includes a winding state maintaining portion 52, a central portion (not shown), and a movable end draw-out port 53, and is attached to the door body by a fixing means as appropriate ( It may be attached to the vehicle body).

The winding state maintaining section 52 includes the same main body 31 as described above, and a cover 54. The cover 54 has three side walls 55 (only two are shown) and an upper wall 56, and is formed such that when it is engaged with the main body 31, the wound state maintaining portion 52 has a rectangular box shape. ing. Although not shown, a central portion having the same function as the central portion 25 is formed on the cover 54. The functions of the side wall 55 and the upper wall 56 are the same as those of the side wall 38 and the upper wall 39 described above.

In the winding state maintaining portion 52, the movable end outlet 53 is formed at the same position as the above-mentioned movable end outlet 26, and near the movable end outlet 53, a pair of locking portions 57 ( Only one is shown, the other is the body 3
(Which is formed on one side).
The locking portion 57 is a projection and has an inclined surface and a locking surface.

On the other hand, a terminal connector (connector) 58 is provided at the movable end of the flat wire harness 22. The terminal connector 58 has a plurality of terminals (not shown) connected to the above-described circuit and a connector housing 59 made of synthetic resin. The connector housing 59 is formed with locking arms 60, 60 that are locked to the pair of locking portions 57, respectively. The locking arms 60 have flexibility and are guided by the inclined surface of the locking portion 57 while being bent, so as to be hooked on the locking surface of the locking portion 57.

In the above configuration, when the door body is opened and moved with respect to the vehicle body, the movable end side 29 of the flat wire harness 22 is pulled out from the movable end draw-out port 26 (see FIG. 5A). And then
When the door body is closed and moved relative to the vehicle body, the door body returns to its original position, and the movable end 29 of the flat wire harness 22 is pulled back by the restoring force of the flat wire harness 22. (Figure 5
(B)).

When the flat wire harness excess length absorbing device 51 is transported (delivered) or stored by itself, the terminal connector 58 is locked by the locking portion 57 (FIG. 5).
(B)). Thus, the movable end side 29 of the flat wire harness 22 is not accidentally pulled out.

The flat wire harness excess length absorbing device 51 described above has the same effect as the flat wire harness excess length absorbing device 21 described above.

Next, a modification of the other embodiment of FIG. 5 will be described with reference to FIG. FIG. 6A is an explanatory diagram of an expanded state when the movable end side of the flat wire harness is pulled out, and FIG. 6B is a contracted state and locking of the terminal connector when the movable end side of the flat wire harness is pulled back. It is explanatory drawing of a state.

The function, operation, and effect of the flat wire harness excess length absorbing device 51 'described below are basically the same as those of the flat wire harness excess length absorbing device 51 described above.

6 (a) and 6 (b), the winding arms 52 of the flat wire harness excess length absorbing device 51 'are provided with locking arms 60, 60 instead of the locking portions 57 described above. (In this case, it corresponds to the locking portion described in the claims). Its locking arm 60,
Reference numeral 60 is formed on the side wall 55 (and the side wall 34) on the upper wall 56 side. In addition, a curved surface 61 with respect to the movable end side 29 of the flat wire harness 22 is formed near the movable end draw-out port 53 '. Above the curved surface 61, a step 62 is formed.

On the other hand, the terminal arm 58 'at the movable end of the flat wire harness 22
A locking portion 57 is formed instead of 0 and 60. still,
When the terminal connector 58 ′ is locked, it is held by the step 62.

Next, an example of installation of the flat wire harness excess length absorbing device will be described with reference to FIGS. 7 and 8. FIG.

7 and 8, a flat wire harness excess length absorbing device 71 (same as one of the flat wire harness excess length absorbing devices 21, 51, 51 ')
It is provided on a slide door 74 slidably attached to a vehicle body 73 of an automobile 72. A not-shown terminal connector (connector) is provided at a movable end of the flat wire harness 22, and is connected to a not-shown wire harness or the like arranged in the vehicle body 73 by a connector. The fixed end (not shown) of the flat wire harness 22 is connected to a load (not shown) (such as a motor for a power window) of the slide door 74.

When the slide door 74 is opened and moved, the movable end side 29 of the flat wire harness 22 moves according to the amount of movement of the slide door 74. Pulled out from a movable end drawer (not shown) (FIG. 8)
(See (a)). Then, when the slide door 74 is closed and moved thereafter, the slide door 74 returns to the original position, and accordingly, the movable end 29 of the flat wire harness 22 is pulled back by the restoring force of the flat wire harness 22 ( FIG. 8 (b)).

Incidentally, the vehicle body 73 is equivalent to the body described in the claims. Further, the slide door 74 corresponds to the moving body described in the claims.

In addition, it goes without saying that the present invention can be variously modified without departing from the gist 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).

[0060]

As described above, according to the first aspect of the present invention, the extra length of the flat wire harness, which has a small configuration, a simple structure, is small, and can be pulled in smoothly. There is an effect that an absorbing device can be provided. Also, there is an effect that a long stroke can be achieved.

According to the second aspect of the present invention,
In addition to the effects of the first aspect of the present invention, there is an effect that the position of the spiral part and the state of the spiral part can be stabilized. Further, even if the movable end side of the flat wire harness is pulled out excessively, there is an effect that the fixed end side of the flat wire harness is not affected.

According to the third aspect of the present invention,
In addition to the effects of the first or second aspect of the present invention, the movable end side of the flat wire harness is inadvertently pulled out during transportation (delivery) or storage of the flat wire harness excess length absorbing device alone. This has the effect that it can be prevented from occurring.

According to the fourth aspect of the present invention,
In addition to the effects of any one of claims 1 to 3,
An advantage is obtained in that the bending radius of the flat wire harness can be restricted to reduce bending fatigue of the flat wire harness.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a flat wire harness excess length absorbing device according to the present invention.

FIG. 2 is an external perspective view of the flat wire harness excess length absorbing device of FIG.

FIG. 3 is an explanatory diagram of a flat wire harness.

4A and 4B are diagrams showing an operation of the flat wire harness excess length absorbing device of FIGS. 1 and 2, wherein FIG. 4A is an explanatory view of an expanded state when the movable end side of the flat wire harness is pulled out, and FIG. FIG. 4 is an explanatory view of a contracted state when the movable end side of the flat wire harness is pulled back.

FIG. 5 is a view showing the operation of another embodiment of the flat wire harness excess length absorbing device according to the present invention, and (a).
FIG. 4 is an explanatory view of an expanded state when the movable end side of the flat wire harness is pulled out, and FIG. 4B is an explanatory view of a contracted state and a locked state of the terminal connector when the movable end side of the flat wire harness is pulled back.

FIG. 6 is a modification of the other embodiment of FIG. 5,
(A) is an explanatory view of an expanded state when the movable end side of the flat wire harness is pulled out, and (b) is an explanatory view of a contracted state and a locked state of the terminal connector when the movable end side of the flat wire harness is pulled back. It is.

FIG. 7 is an explanatory view showing an installation example of the flat wire harness excess length absorbing device according to the present invention.

8 is a diagram showing an operation in the installation example of FIG. 7,
(A) is an explanatory view of an expanded state when the movable end side of the flat wire harness is pulled out, and (b) is an explanatory view of a contracted state when the movable end side of the flat wire harness is pulled back.

FIG. 9 is a sectional view of a conventional flat wire harness excess length absorbing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Flat wire harness excess length absorbing device 22 Flat wire harness 23 Spiral part 24 Winding state maintaining part 25 Center part 26 Movable end drawer 27 Curved part 28 Fixed end side 29 Movable end side 31 Main body part 32 Cover 35 Support part 42 Arc 51 Flat wire harness excess length absorbing device 52 Winding state maintaining part 53 Movable end drawer 54 Cover 57 Locking part 58 Terminal connector (connector) 60 Locking arm

Claims (4)

[Claims] 1. 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 a main body and a movable body movably attached to the main body. A flat wire harness excess length absorbing device for arranging a harness with at least a surplus length necessary for moving the moving body, wherein the device is wound in a spiral shape having the curved portion, and the inside is A center portion which is located at the center of a spiral portion in the middle of the flat wire harness which is continuous with the fixed end side of the flat wire harness and whose outside is continuous with the movable end side of the flat wire harness; and the spiral from the center portion A winding state maintaining unit that restricts the falling off of the portion and maintains a spirally wound state; and pulling out and pulling the flat wire harness from the movable end side. A flat wire harness excess length absorbing device, comprising: a movable end draw-out port for guiding the movable end side at the time of retraction. 2. The flat wire harness excess length absorbing device according to claim 1, further comprising: a support portion that immovably supports a continuous portion between the inside of the spiral portion and the fixed end side of the flat wire harness. A flat wire harness excess length absorbing device, comprising: 3. The flat wire harness excess length absorbing device according to claim 1, further comprising a locking portion for locking a connector provided at the movable end of the flat wire harness. A flat wire harness excess length absorbing device, characterized in that: 4. The flat wire harness excess length absorbing device according to claim 1, wherein an arc is formed in the center portion so as to regulate a bending radius of the flat wire harness. Flat wire harness extra length absorption device.