JP2017027693A - Wire harness manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness manufacturing method capable of lightening a load and shortening the time for assembling the wire harness compared to a case where lines are wired along a shape of the wire harness to be assembled.SOLUTION: The wire harness manufacturing method includes: a step of wiring, in a folded state, a trunk line 11 that constitutes a wire harness; a step of wiring a plurality of branch lines 12 branching from the trunk line 11; a step of applying a sheath on each of the plurality of branch lines 12; and a step of extending the trunk line 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for manufacturing a wire harness.

  Assembly of the wire harness is generally performed by driving a nail-like pin into a flat plate such as a veneer plate to form a pseudo wiring route, and wiring the electric wire along the pseudo wiring route. .

  However, once the pin is driven into the flat plate, there is a problem that it is difficult to change the pin position. In addition, if the equipment incorporating the wire harness changes, the shape and size of the wire harness itself is different, so the plane plate is replaced, and a large storage space is required to store the plane plate until the next manufacturing. There is.

  In view of the above circumstances, conventionally, a wire harness assembling jig that couples a plurality of rod-like components into a shape corresponding to the shape of the wire harness has been proposed (for example, see Patent Document 1).

  The wire harness assembly jig described in Patent Document 1 includes a plurality of hollow rectangular bar-shaped parts formed by bending a metal plate, a plurality of pins and wire holding parts, A large number of small holes arranged in parallel in the longitudinal direction on the upper surface, a large number of first connection portions by slits formed on both side surfaces over substantially the entire length, a second connection portion and a second connection portion by protrusions formed on both end surfaces, respectively The pin and the wire holding part are erected so as to be selectively inserted into and removed from the small hole of the hollow square bar-shaped part, and the plurality of hollow square bar-shaped parts are connected to the first connection part and the second connection. By connecting the parts or the third connection parts so as to be separable, they are combined into a shape corresponding to the shape of the wire harness to be assembled.

JP-A-8-83523

  However, according to the conventional wire harness assembly jig, a plurality of hollow square bar-shaped parts are combined into a shape corresponding to the shape of the wire harness to be assembled. Done along. When a wire harness has a long overall length, such as a wire harness for a railway vehicle, for example, an exterior process including a wiring work, a connector connection work, and a bundling work is performed while an operator moves, so the assembly of the wire harness The work takes time and the burden is heavy.

  In addition, there are other inconveniences as follows. In order to produce a hollow rectangular bar-shaped part, a large number of small holes and slits must be formed in the metal plate by punching. Therefore, if the hollow rectangular bar-shaped part becomes longer, the number of punching operations increases accordingly. The process time becomes longer. Further, when the wire harness has a long overall length, such as a wire harness for a railway vehicle, for example, a large number of hollow square bar-shaped parts must be coupled in the longitudinal direction, and the jig assembly work is burdensome for the operator. .

  Then, the objective of this invention is providing the wire harness manufacturing method which can aim at the time shortening and burden reduction of the assembly operation of a wire harness compared with the case where it wires along the shape of the wire harness which should be assembled. is there.

[1] A step of arranging the main wire constituting the wire harness in a folded state;
Arranging a plurality of branch lines branched from the trunk line;
Applying an exterior to each of the plurality of branch lines;
Extending the trunk line; and
A method for manufacturing a wire harness.
[2] A step of laying the trunk wire constituting the wire harness along the main frame having a groove in which the other frame is movably engaged;
A plurality of branch lines branching from the main line along the plurality of subframes, with one end portion in the longitudinal direction being adjacent to the plurality of subframes movably engaged with the grooves of the main frame A process of arranging
Applying an exterior to the plurality of branch lines;
Extending the trunk line by moving the plurality of subframes along the groove and separating them from each other;
A method for manufacturing a wire harness.

  According to the present invention, it is possible to reduce the time and burden of assembling the wire harness as compared with the case of wiring along the shape of the wire harness to be assembled.

FIG. 1 is a perspective view showing a main part of a wire harness assembling jig according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a main part of a structure for fixing the support member to the main frame or the subframe. FIGS. 3A and 3B are diagrams showing an example of a wire harness manufacturing method, in which FIG. 3A is a plan view, FIG. 3B is an enlarged view of a portion A in FIG. 3A, and FIG. FIG. 4 is a plan view schematically showing the wire harness manufacturing method according to the embodiment of the present invention. FIG. 5 is a plan view schematically showing the wire harness manufacturing method according to the embodiment of the present invention. FIG. 6 is a plan view schematically showing the wire harness manufacturing method according to the embodiment of the present invention. FIG. 7 is a plan view schematically showing the wire harness manufacturing method according to the embodiment of the present invention. FIG. 8 is a plan view schematically showing the wire harness manufacturing method according to the embodiment of the present invention. FIG. 9 is a plan view schematically showing the wire harness manufacturing method according to the embodiment of the present invention. FIG. 10 is a plan view schematically showing the wire harness manufacturing method according to the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each figure, about the component which has the substantially same function, the same code | symbol is attached | subjected and the duplicate description is abbreviate | omitted.

[Embodiment]
FIG. 1 is a perspective view showing a main part of a wire harness assembling jig according to an embodiment of the present invention.

  This wire harness assembling jig 1 has a first length in the longitudinal direction, a main frame 2 extending linearly, and a second length shorter than the first length in the longitudinal direction, A plurality of subframes 3 that extend in a straight line, a fixing member 4 that fixes the plurality of subframes 3 to the main frame 2, and a plurality of support members 5 that support the wire harness 10 or the wires constituting the wire harness 10. Prepare. The main frame 2, the sub frame 3, the fixing member 4, and the support member 5 are examples of jig components.

  Here, the “wire harness” refers to one that bundles a plurality of electric wires and has connectors or terminals for connecting to both ends of each electric wire to a printed circuit board or a device. In addition, the “wire harness” includes a main line composed of a plurality of electric wires and a plurality of branch lines branched from the main line.

  The first length in the longitudinal direction of the main frame 2 is a length corresponding to the entire length of the trunk line 11 constituting the wire harness 10, specifically, a length substantially equal to the entire length of the trunk line 11. The main frame 2 has a first T-groove 20a in which the support member 5 is movably engaged on the upper surface 21a, and a second end 3a in the longitudinal direction of the subframe 3 is movably engaged. A T-groove 20b is provided on both side surfaces 21b, and a third T-groove 20c is provided on the lower surface 21c. The main frame 2 has a contrasting shape in the upper, lower, left, and right directions, and the first to third T grooves 20a to 20c have the same cross-sectional shape. The main frame 2 configured as described above is formed of a metal such as an aluminum alloy, for example, and is formed by, for example, extrusion.

  The second length in the longitudinal direction of the subframe 3 is the length corresponding to the maximum total length among the plurality of branch lines 12 branched from the trunk line 11 constituting the wire harness 10, specifically, The length is approximately equal to the maximum overall length. The sub-frame 3 has the same cross-sectional shape and cross-sectional size as the main frame 2, but differs only in the length in the longitudinal direction. That is, the sub-frame 3 has a first T-groove 30a in which the support member 5 is movably engaged in the upper surface 31a, and a second T-groove 30b similar to the second T-groove 20b of the main frame 2 is formed. The lower surface 31c has third T-grooves 30c that are provided on both side surfaces 31b and in which end portions of leg portions (not shown) are movably engaged. The subframe 3 has a contrasting shape in the upper, lower, left, and right directions, and the first to third T grooves 30a to 30c have the same cross-sectional shape. The subframe 3 configured as described above is formed of a metal such as an aluminum alloy, for example, and is formed by, for example, extrusion.

  By engaging and fixing the ends of a plurality of leg portions having an equal length of about 80 cm in the third T grooves 20c and 30c of the main frame 2 and the sub frame 3, the main frame 2 and the sub frame 3 are fixed. Since the heights of the upper surfaces 21a and 31a from the floor surface are uniform, the assembly work of the wire harness 10 is facilitated.

  The fixing member 4 includes a first side part 4a and a second side part 4b that form an L-shaped cross section as a whole. The first side 4a is fixed to the subframe 3 by tightening a bolt 41 on a T-nut 40 similar to a T-nut 52 described later that can move the second T-groove 30b of the subframe 3. The second side portion 4b is fixed to the main frame 2 by tightening the second T groove 20b of the main frame 2 with a bolt 41 to a movable T nut 40. One end 3 a of the sub-frame 3 is fixed to the main frame 2 by the fixing member 4 configured as described above.

  The support member 5 is connected to the leg portion 50, the upper end of the leg portion 50, the U-shaped support portion 51 on which the wire harness 10 or the electric wire constituting the wire harness 10 is arranged, and the first T of the main frame 2. A T-nut 52 that can move through the groove 20 a and the first T-groove 30 a of the subframe 3, and a tightening nut 53 that fixes the leg portion 50 and the T-nut 52 to the main frame 2 or the subframe 3 are provided. A structure for fixing the support member 5 to the main frame 2 or the subframe 3 will be described with reference to FIG.

  FIG. 2 is a diagram showing a main part of a structure for fixing the support member 5 to the main frame 2 or the subframe 3. A male screw 50 a is formed below the leg portion 50 of the support member 5. A female thread is formed on the T-nut 52 halfway from the upper surface toward the lower surface. The tightening nut 53 is formed with a female screw that is screwed into the male screw 50 a of the leg portion 50. The support member 5 configured as described above is assembled as follows. First, the T nut 52 is inserted into the first T groove 20a of the main frame 2 from the end of the main frame 2, and the T nut 52 is moved to a desired position. Next, the female screw of the tightening nut 53 is screwed into the male screw 50a of the leg part 50 to which the U-shaped support part 51 is connected. Next, the male screw 50 a of the leg portion 50 is screwed into the female screw of the T nut 52. Next, the tightening nut 53 is tightened. The support member 5 is fixed to the main frame 2 as described above. The support member 5 can be similarly fixed to the subframe 3.

(Assembly of wire harness)
FIGS. 3A and 3B are diagrams showing an example of a wire harness manufacturing method, in which FIG. 3A is a plan view, FIG. 3B is an enlarged view of a portion A in FIG. 3A, and FIG. 4-10 is a figure which shows an example of the manufacturing method of a wire harness.

(1) Assembly of main frame 2 and subframe 3 On the upper surface 21a of the main frame 2, color labels 6a to 6c as an example of identification information of the wire harness 10 assembled at a position where the subframe 3 is engaged and fixed are provided. It is pasted. FIG. 3A schematically shows the color labels 6a to 6d. Actually, as shown in FIGS. 3B and 3C, the color labels 6a to 6d are, for example, rectangular. It has a shape and is attached to one side of the upper surfaces 21a, 31a of the subframe 3 of the main frame 2. The shape of the color labels 6a to 6d is not limited to a rectangular shape, and may be another shape such as a circle. The identification information of the wire harness 10 may be a character string, a one-dimensional code such as a barcode, or a two-dimensional code such as a QR code (registered trademark).

  FIG. 3 shows a case where the subframe 3 is fixed at the position where the color label 6a of the main frame 2 is pasted. A method for manufacturing the main frame 2 and the subframe 3 in this case will be described next.

  First, the first side 4 a of the fixing member 40 is attached to one end 3 a of the subframe 3 with a T-nut 40 and a bolt 41. A T-nut 40 is lightly temporarily fixed with a bolt 41 on the second side 4b.

  As shown in FIG. 3B, when the color label 6a is affixed to one side surface 21b side (upper side in FIG. 3) of the upper surface 21a of the main frame 2, a prepared subframe is prepared. The T nut 40 on the second side 4b side of the three fixing members 40 is inserted into the second T groove 20b on the one side surface 21b side (upper side in FIG. 3) of the main frame 2 from the end. Further, as shown in FIG. 3C, when the color label 6a is affixed to the other side surface 21c side (lower side of FIG. 3) of the upper surface 21a of the main frame 2, it is prepared. The T nut 40 on the second side portion 4b side of the fixing member 40 of the subframe 3 is inserted into the second T groove 20b on the other side surface 21b side (downward in FIG. 3) of the main frame 2 from the end. In this way, one end 3 a of the subframe 3 is engaged with the second T groove 20 b of the main frame 2.

(2) Attachment of Support Member 5 As shown in FIGS. 1 and 2, a pair of support members 5 are fixed in the vicinity of the position on the main frame 2 where the color label 6 is attached. In addition, the support member 5 is fixed at a position where the color label 6 a of the subframe 3 and the color label 6 d common to the various wire harnesses 10 are attached.

  Next, as shown in FIG. 4, the plurality of sub-frames 3 engaged with the main frame 2 are moved substantially to the center to approach each other.

  Next, as shown in FIG. 5, the branch line 12 is routed along the subframe 3 so as to pass through the U-shaped support portion 51 of the support member 5 while the trunk line 11 is folded. Next, the connector 13 is connected to the end of the branch line 12. In addition, you may wire the branch line 12 to which the connector 13 was connected previously.

  Next, as shown in FIG. 6, the branch line 12 is bundled with a band, a tape, a tube, etc., and the exterior 14 is given.

  Next, as shown in FIG. 7, the subframe 3 is moved along the main frame 2 to a regular branch position. FIG. 8 shows a state in which the subframe 3 has moved to the normal branch position. The sub-frame 3 is fixed to the regular branch position by tightening the bolt 41 on the second side 4b side of the fixing member 4. At this time, the trunk line 11 and the branch line 12 are wired so as to pass through the U-shaped support part 51 of the support member 5 fixed in the vicinity of the normal branch position.

  Next, as shown in FIG. 9, the trunk line 11 is extended. At this time, the trunk line 11 is routed so as to pass through the U-shaped support part 51 of the support member 5 fixed to both ends of the main frame 2. Next, connectors 13 are connected to both ends of the trunk line 11.

  Next, as shown in FIG. 10, the trunk line 11 is bundled with a band, a tape, a tube, etc., and the exterior 14 is applied. The wire harness 10 is assembled by the above.

(Operation and effect of the present embodiment)
According to the present embodiment, the following operations and effects are achieved.
(A) The wiring work of the branch line 12, the connection work of the connector 13, and the processing work of the exterior 14 can be performed with little movement. For this reason, compared with the case where it arranges along the shape of the wire harness which should be assembled, the time shortening of the assembly operation of a wire harness and a burden reduction can be aimed at.
(B) The main frame 2 and the subframe 3 can be easily manufactured by extrusion.
(C) Even if the main frame 2 has a long overall length, such as a rail harness for a railway vehicle, it is sufficient to prepare one main frame 2 having a length corresponding to the main wire harness. This eliminates the need for the jig assembly and reduces the burden of jig assembly work.

[Other variations]
The embodiments of the present invention are not limited to the above-described embodiments, and various embodiments can be made without departing from the gist of the present invention. For example, the sub-frame 3 can move along the main frame 2 without changing its orientation with respect to the main frame 2 with one end 3a of the sub-frame 3 engaged with the second T-groove 20b of the main frame 2. And a drive unit such as a motor that moves the sub frame 3 along the main frame 2 and a control unit that moves and stops the sub frame 3 to a desired position.

  Further, the sub frame 3 may not have the same cross-sectional shape as the main frame 2. For example, the T groove may not be provided on the side surface of the subframe.

  Moreover, you may omit a part of component of embodiment of this invention in the range which does not deviate from the summary of this invention.

  In addition, within the scope of the present invention, it is possible to add, delete, change, and replace processes in the assembly process according to the above embodiment. For example, the step of applying the exterior 14 to the main line 11 may be omitted.

  The present invention is applicable to railway vehicle harnesses, automobile harnesses, aircraft harnesses, medical harnesses, in-device harnesses, and the like.

1 ... Wire harness manufacturing device, 2, 2A, 2B ... main frame,
3, 3A, 3B ... subframe, 3a ... one end, 3b ... the other end,
4 ... fixing member, 4a ... 1st edge part, 4b ... 2nd edge part, 5 ... support member,
6a-6d ... color label, 7 ... support, 8 ... plate, 10 ... wire harness,
11 ... trunk line, 12 ... branch line, 13 ... connector, 14 ... exterior, 20a-20c ... T groove,
30a-30c ... T-slot, 21a ... upper surface, 21b ... side surface, 21c ... lower surface, 31a ... upper surface,
31b ... Side, 31c ... Bottom, 40 ... T-nut, 41 ... Bolt, 50 ... Leg,
50a ... male screw, 51 ... U-shaped support, 52 ... nut, 53 ... tightening nut

Claims (2)

A process of arranging the main wire constituting the wire harness in a folded state;
Arranging a plurality of branch lines branched from the trunk line;
Applying an exterior to each of the plurality of branch lines;
Extending the trunk line; and
A method for manufacturing a wire harness. Wiring the main wire constituting the wire harness in a folded state along the main frame having a groove in which the other frame is movably engaged;
A plurality of branch lines branching from the main line along the plurality of subframes, with one end portion in the longitudinal direction being adjacent to the plurality of subframes movably engaged with the grooves of the main frame A process of arranging
Applying an exterior to the plurality of branch lines;
Extending the trunk line by moving the plurality of subframes along the groove and separating them from each other;
A method for manufacturing a wire harness.

Images