JP2962096B2 - Flat wire harness length adjustment member - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a length adjusting member for a flat wire harness, and more particularly, to a copper foil or a small diameter member such as an FPC (flexible printed circuit) and an FWC (flexible wire circuit). The length of a flexible flat wire harness having a configuration in which a conductor such as an electric wire is covered with an insulating film can be adjusted.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 8 and 9A and 9B, a flat wire harness of this kind has conductors 1 arranged at a required pitch spaced from each other by insulating films 2 and 3 on both sides. Is coated. 9A shows the case of FWC, and FIG. 9B shows the case of FPC. When connecting to the power supply side and the electrical component side using the flat wire harness 4 having the above configuration, the connectors 5 and 6 are attached to both ends in the length direction as shown in FIG.

[0003]

The length L of the flat wire harness 4 is determined by the connectors 5, 6 connected to both ends.
When the distance between the connectors 5 and 6 is long, it is necessary to use a flat wire harness having a long overall length L, while the distance between the connectors 5 and 6 is small. If the length is short, it is necessary to use the one with a short overall length L. That is, if the length L of the flat wire harness 4 is shorter than the distance between the connectors 5 and 6, it cannot be used naturally. Conversely, if the length L of the flat wire harness 4 is too long than the distance between the connectors 5 and 6, an extra portion is generated in the flat wire harness,
There is also a danger that the surplus portion drips, interferes with other components, and causes a short circuit.

[0004] The flat wire harness 4 is manufactured continuously, and is usually cut in a predetermined length by a cutting machine. Therefore, the total length L of the flat wire harness 4 is the length set by the cutting machine. ing. In addition, by changing the cutting length by the cutting machine, the total length L is, for example, 250 cm to 50 cm.
Several types of flat wire harnesses are provided, differing in several steps up to cm.

[0005] However, the length of the flat wire harness required in accordance with the place of use is variously different, and the above-mentioned problem is not solved even if a plurality of types of pre-cut flat wire harnesses are selected and used. Occur. Changing the cutting length of the flat wire harness to the required length according to the place of use solves the problem, but since the setting of the cutting length of the cutting machine needs to be changed each time, in reality, Near impossible.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a flat wire harness having a variable length, and a flat wire harness having a fixed length is used in various places having different required lengths. The purpose is to be able to do it.

[0007]

In order to achieve the above object, according to the present invention, a pair of movable plate portions (a first movable plate portion and a second movable plate portion) rotatably pivoted at substantially center positions are provided. A guide rod is provided at each end of each of the movable plate portions for projecting and winding a flat wire harness around the wire, and the distance on the same side of the guide rods is adjusted by opening the pair of movable plate portions at a required angle. The present invention also provides a flat wire harness length adjusting member, characterized in that a lock means for holding the flat wire harness is provided.

The locking means is formed of, for example, a member separate from the movable plate portion, and the upper end of one of the guide rods of the first and second movable plate portions and the other of the second and first movable plate portions. A lock mechanism for locking and holding the upper end of the guide rod is provided between the upper and lower ends of the guide rods. By attaching, the guide bar and the movable plate portion are positioned and held.

Alternatively, the locking means comprises first and second locking means.
Disc members that slide with each other are formed on the outer peripheral portion of the pin that rotatably connects the movable plate portions, and moderation grooves are recessed at one joining surface of these disc portions at intervals in the circumferential direction. On the other hand, a detent mountain to be engaged with the detent groove is provided to protrude on the other joint surface,
The first and second movable plate portions may be positioned and held by rotating the required angle by a required angle and engaging with the moderation.

Further, when the guide rods of the first and second movable plate portions are located adjacent to each other, a cylindrical member is used as a locking means, and two guide rods adjacent to the cylindrical member are used. It may be locked by pushing it in.

[0011]

When the length adjusting member is used, the flat wire harness is wound around the guide rod and turned back, and the distance between the guide rods is adjusted by rotating the movable plate portion, so that the flat wire harness is adjusted. The return distance can be set to the required length. Therefore, it is possible to easily adjust the overall length of the flat wire harness,
Since the folded back flat wire harness is held between the guide rods, the surplus portion does not drip, and interference with other components can be prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. Since the structure of the flat harness itself is the same as the structure shown in FIGS. 8 and 9, the same reference numerals are given and the description is omitted.

FIGS. 1 to 3 show a length adjusting member 10 according to a first embodiment. As shown in FIG. 1A, a pair of rotatable pivotally pivotally connected via pins 10a at substantially central positions to each other. A first movable plate portion 11 and a second movable plate portion 12 made of a flat plate are provided. At each end of each of the movable plate portions 11, 12, cylindrical guide rods 11a, 11b, 12a, 12b having an overall length longer than the width of the flat wire harness 4 are protruded, and these guide rods 11a to 11b are provided. At the upper end of 12b, locking portions 11c, 12c having a diameter larger than those of the guide rods 11a to 12b are provided.

As shown in FIG. 1B, the adjusting member 10 serves as a locking means for the movable plate portions 11 and 12, as shown in FIG.
An engagement member 13 having a box shape with a bottom and an open end is provided. The engagement member 13 is provided with the first and second movable plate portions 11, 1
The upper end of one of the two guide rods 11a, 12a and the upper end of the other guide rod 12b, 11b of the second and first movable plate portions 12, 11 are respectively erected and locked.

The engaging member 13 is provided with partition walls 13a juxtaposed inwardly of the front and rear end faces 13f in the longitudinal direction with a gap such that the engaging portions 11c and 12c can be fitted therein. The gap between the end face 13f and the partition wall 13a is a lock portion 14.

A pair of notches 13c are provided on both side walls 13b of the lock portion 14 in parallel at a predetermined interval, and the side walls 13b between the notches 13c are elastic pieces 13d for locking. The elastic piece 13d is provided with a locking claw 13e protruding inward, and a gap between the locking claw 13e and the upper plate portion 13g of the fastening member 13 is formed by the engagement portion 11c, The thickness is set to be substantially the same as 12c.

In the flat wire harness length adjusting member 10 having the above structure, as shown in FIG. 2, the flat wire harness 4 is connected to the guide rods 11a to 12b of the adjusting member 10.
As shown in the figure, the second movable plate 12 is rotated in the X direction with respect to the first movable plate 11 to adjust the length of the flat wire harness 4.

Next, guide rods 11a, 12b and 11
The engaging member 13 corresponding to the distance between b and 12a is externally fitted to the locking portions 14 at both ends so that the locking portions 11c and 12c are inserted. As shown in FIG. 3, the attachment work of the engagement member 13 is completed when the engagement portions 11c and 12c are located between the locking claw 13e and the upper plate portion, and in this state, The movable plates 11, 12 communicating with the guide rods 11a to 12b are non-rotatably positioned and held.

In the fixed state, the locking projections 13e of the engaging member 13 are engaged with the lower surfaces of the locking portions 11c and 12c, so that the locking portions 13c and 12c are reliably prevented from coming off. In addition, the flat wire harness 4 is held between the engaging member 13 provided and the first and second movable plate portions 11 and 12 to reliably prevent detachment.

FIG. 4 shows an engaging member 15 according to a second embodiment.
The engaging member 15 has a configuration in which a plurality of lock portions 14 shown in the first embodiment are provided in the length direction. More specifically, the engaging member 15 is provided with two lock portions 14, 14 adjacent to both ends in the length direction, and the center of the lock portions 14, 14 on both sides is the center shown in FIG. Stop 11c,
A press-fit portion 16 is provided with a gap approximately twice the diameter of 12c.

In the second embodiment, the flat wire harness 4 is wound around the guide rods 11a to 12b as in the first embodiment, and the movable plate portions 11 and 12 are rotated so that the flat wire harness 4 is rotated.
The length of the entire length of the wire harness 4 is adjusted. Thereafter, by selecting the lock portion 14 of the engaging member 15 corresponding to the distance between the guide rods 11a and 12b and the distance between the guide rods 11b and 12a, and fitting the lock portion 14 from above, the movable plates 11 and 12 communicating with the guide rods 11a to 12b are selected. Is positioned so that it cannot rotate.

On the other hand, when the total length of the flat wire harness 4 is adjusted, the first and second movable plate portions 1 are adjusted.
When the first and second guide rods 11a and 12b, 11b and 12a are located adjacent to each other, the press-fitting portion 16 provided at the center of the engaging member 15 is externally fitted from above and positioned and held non-rotatably. .

Therefore, in the second embodiment having the above structure, the entire length of the flat wire harness 4 can be adjusted and the guide rod 1 for holding and fixing can be adjusted similarly to the first embodiment.
Since a plurality of the engaging members 15 can correspond to the distance between 1a and 12b, workability can be further improved.

Incidentally, as described above, the first and second movable plate portions 11,
When the twelve guide rods 11a and 12b and 11b and 12a are located adjacent to each other, as shown in FIGS. 5A and 5B, a cylindrical member 18 is provided as a locking means, and the cylindrical member 18 is provided. Two adjacent guide rods 11a and 12b and 11b and 12a
It is good also as composition which pushes in and locks.

FIGS. 6 and 7 show a length adjusting member 20 according to a third embodiment. The adjusting member 20 has an annular shape at the center of a pair of the first movable plate 21 and the second movable plate 22. Disk portions 21d and 22d are provided.

The disk portion 21 of the first movable plate portion 21
In d, a plurality of hemispherical moderation grooves 21e are recessed at a required pitch in the circumferential direction on the joint surface with the second movable position portion 22. A shaft hole 21f is formed at the center of the disk portion 21d.

On the other hand, the disk portion 22 of the second movable plate portion 22
d, the moderation groove 21e is located at a position facing the center of the circle.
And two protrusions 22e corresponding to the shape of
Similarly, a shaft hole 22f is formed at a position corresponding to the shaft hole 21f of the first movable plate portion 21.

As shown in FIG. 7, the first movable plate portion 21 and the second movable plate portion 22 are pivotally mounted on the shaft holes 21f, 22f by passing a pin 24 through the shaft holes 21f, and are rotated by a required angle to be a moderation member. The positioning can be maintained by combining them.

Therefore, the length adjusting member 20 having the above structure
The flat wire harness 4, which is wound and adjusted in total length in the same manner as in the first embodiment, can be securely held in a state where the length is adjusted, and a separate attaching member is not required, so that parts are not required. The points can be reduced.

[0030]

As is apparent from the above description, in the flat wire harness length adjusting member of the present invention, guide rods for winding the flat wire harness are wound on both ends of a pair of rotatable movable plate portions. Provided, the flat wire harness is wound around the guide rod and passed back while being folded, and in this state, by rotating the movable plate portion, the flat wire harness can be easily set to a required length,
By locking the movable plate in this position, the length of the flat wire harness can be adjusted. Therefore, since the surplus portion of the flat wire harness does not drip, the flat wire harness does not interfere with other components.

Further, since the locking means for positioning and holding the movable plate portion is provided, the flat wire harness can be securely held without detaching while the length of the flat wire harness is adjusted. .

[Brief description of the drawings]

FIGS. 1A and 1B are perspective views showing a length adjusting member of the present invention.

FIG. 2 is a perspective view showing a state in which a flat wire harness is attached to an adjustment member.

FIG. 3 is a partial sectional view of FIG. 2;

FIG. 4 is a perspective view showing an engaging member of a second embodiment.

5A and 5B show a modification of the second embodiment, in which FIG. 5A is a perspective view showing an attached state, and FIG. 5B is a perspective view showing an engaging member.

FIG. 6 is a perspective view showing a first movable plate portion of a third embodiment.

FIG. 7 is a sectional view showing a holding state of a first movable plate portion and a second movable plate portion.

FIG. 8 is a perspective view showing a flat wire harness.

FIGS. 9A and 9B are cross-sectional views of a flat wire harness.

[Explanation of symbols]

 Reference Signs List 4 Flat wire harness 10 Length adjusting member 11, 12 Movable plate 11a, 11b, 12a, 12b Movable plate 13 Locking means

Claims (1)

(57) [Claims] 1. A pair of movable plates, which are rotatably connected to each other at a substantially central position, are provided with guide rods at both ends of each of the movable plates for winding a flat wire harness and folding it back. And a lock means for adjusting the distance between the guide rods by opening the pair of movable plates at a required angle and holding the movable plate in the open state.