JP3855673B2 - Wire harness assembly support - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wire harness assembling support used at a wire harness branching point when a wire harness is assembled on an assembly drawing board.
[0002]
[Prior art]
Conventionally, when assembling a wire harness, assembly support tools are arranged at a predetermined number of locations on the assembly drawing board, electric wires are supported by these assembly support tools, and branch lines are connected from the main line at specific positions. The wires that make up the wire harness are routed along the assembly support to form a bundle of wires with branches, and further, the tape is wrapped around the outer circumference to prevent the wires from being separated. Finally, accessories such as clamps and protectors are attached.
[0003]
As a support used at a branching point or the like when assembling such a wire harness, for example, a support as shown in FIG. 7 is known. A support tool 101 shown in this figure includes a columnar leg portion 111 and a fork portion 112 including three rod-shaped electric wire hook portions 112a connected to the upper ends of the leg portions 111 via radial connection portions 112b. I have. And, it is fixedly mounted on the assembly drawing board, or is mounted so that the position can be changed over the height position adjusting means 116 between the rising position for receiving the wire bundle and the lowering position for retracting from this position. Yes.
[0004]
In addition to this, as shown in, for example, Japanese Patent Laid-Open No. 5-325671, a base portion fixed on a wiring board (an assembly drawing board), and a plurality of electric wire hanging portions protruding from the upper end of the base portion And a fork part for supporting the main line and a fork part for branching, and a lever for moving the fork part for branching is provided. There is known a structure in which an operator can move the branching fork part to the retracted position by operating the lever when the branching fork part interferes.
[0005]
[Problems to be solved by the invention]
According to the support tool shown in FIG. 7, when a large number of electric wires are supported on the fork part while branching the branch line from the main line, the branch center position is easily shifted from the center position of the fork part of the support tool. When such a shift of the branch center position occurs, there is a problem that the dimensional accuracy of each part of the wire harness with respect to the branch position is deteriorated.
[0006]
Further, according to the support shown in Japanese Patent Laid-Open No. 5-325671, since the branching position is restricted by the branching fork part, it can be expected to suppress the deviation of the branch center position. In addition, when the wire bundle is again hung on the fork after winding the tape in the vicinity thereof, it interferes with the branch fork, and in this case, the operator operates the lever to move the branch fork to the retracted position. There is a problem that this operation is troublesome.
[0007]
The present invention has been made to solve the above-described problems, and can correctly regulate the branch center position of the wire bundle hung on the support, and the dimensions of each part of the wire harness based on the branch position. An object of the present invention is to provide a wire harness assembling support that can improve accuracy and is easy to operate.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 is a wire harness assembly support tool used at a wire harness branching portion when assembling a wire harness on an assembly drawing board, and is erected on the assembly drawing board. And a fork portion composed of a plurality of wire hooks provided at the upper end of the leg portion, and a reference rod for setting the center of the wire harness branch is disposed at a substantially central position of the fork portion. And an urging means for urging the reference rod upward and allowing the reference rod to move up and down in a state of projecting upward from the leg portion and a state of being immersed in the leg portion. When a load exceeding the urging force is applied to the reference rod from above, the reference rod is configured to be immersed in the leg portion.
[0009]
According to this configuration, when a number of electric wires are hung on the fork part and part of the wires are branched with the support mounted on the assembly drawing board, the branch center position is correctly set by the reference rod. Be regulated. And when the wire bundle is hung on the support again after tape winding is performed at the branch point and its vicinity after the wiring, the reference rod is pressed from above by the wire bundle and immersed in the leg part. Interference between the reference rod and the wire bundle is avoided.
[0010]
In the present invention, as described in claim 2, the support body including the leg portion, the fork portion, and the reference rod is extended between a raised position where the fork portion receives the wire bundle of the wire harness and a lowered position where the fork portion is retracted from this position. It is preferable to provide a height position adjusting means that enables position change.
[0011]
In this way, the tape winding operation is facilitated by retracting the support body to the lowered position when winding the tape after wiring.
[0012]
Further, as described in claim 3, it is preferable that the position of the fork portion relative to the leg portion can be changed between a predetermined ascending position and a descending position retracted from the position.
[0013]
In this way, at the time of the so-called hooking operation in which the branching portion is temporarily fixed with tape after the wiring, only the fork portion is in the lowered position, thereby preventing the position of the branching portion from being displaced and facilitating this operation. Done.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 partially shows an assembly drawing board 2 to which a wire harness assembly support 1 of the present invention is attached and a wire harness W assembled on the assembly drawing board 2. In this figure, the wire bundle 3 of the wire harness W is supported by the support 1 attached on the assembly drawing board 2, and the branch-side wire bundle 3b branches from the trunk-side wire bundle 3a at this position. is doing. Tapes 4 are wound around the electric wire bundle 3 at this branching location so as to prevent the electric wire bundle 3 from being separated and to maintain the branched state. Reference numeral 5 denotes a connector attached to the end of the wire bundle.
[0016]
2 to 5, the support tool 1 includes a support tool body 10 including a leg portion 11, a fork portion 12 and a reference bar 13, and a height position of the support tool body 10 with respect to the assembly drawing plate 2. The height position adjusting means 16 is provided.
[0017]
The legs 11 of the support body 10 are formed in a columnar shape such as a prism. The fork portion 12 has a plurality of wire hook portions 12a. In the present embodiment, the fork portion 12 has three rod-like wire hook portions 12a arranged in three directions at a predetermined interval from each other. The wire hooking portion 12a is connected to the upper end via a radial connecting portion 12b.
[0018]
The reference bar 13 is disposed substantially at the center of the fork portion 12 and can be moved up and down between a state of projecting upward from the leg portion 11 and a state of being immersed in the leg portion 11, and an urging means comprising a spring 14 and the like Is biased upward. Specifically, a cylindrical reference rod storage portion 15 is fitted into a hollow portion formed between the center portion of the fork portion 12 and the leg portion 11, and a spring 14 is stored in the reference rod storage portion 15. The reference rod 13 is equipped so that it can appear and disappear. Normally, when the reference rod 13 is held in the protruding state as shown in FIGS. 2 and 3A by the urging force of the spring 14, and a load exceeding the urging force of the spring 14 is applied to the reference rod 13 from above. The reference bar 13 is immersed in the reference bar storage portion 15.
[0019]
The height position adjusting means 16 is a mechanism similar to that shown in Japanese Patent Application Laid-Open No. 6-333441, and is provided with a hollow base member 16a and a reference rod 13 that is connected to the base member 16a. As shown in FIG. 3, a cylindrical body portion 16b, a nut 16c screwed into a screw formed in the cylindrical body portion 16b, and a locking tool (not shown) provided inside the base member 16a are provided. The base member 16a is disposed on the lower side of the assembly drawing board 2 and the cylindrical body portion 16b is inserted into the mounting hole provided in the assembly drawing board 2 and fixed to the assembly drawing board 2 by the nut 16c. .
[0020]
By this height position adjusting means 16, the support body 10 is moved to a predetermined raised position shown in FIG. 3 (a) (a position where the fork portion 12 receives the wire bundle 3 of the wire harness W) and a predetermined lowered position shown in FIG. 3 (b). It is supported so that it can move up and down. When the support body 10 is pulled up from the predetermined lowered position to the predetermined raised position, it is locked by the locking tool and held at the predetermined raised position, and when an operation is performed to slightly lift upward from this state. Thus, the locking by the locking tool is released and the support tool main body 10 is lowered to its predetermined lowered position by its own weight.
[0021]
The effect | action of this support tool 1 is demonstrated referring FIG.3 and FIG.4.
[0022]
When the wire harness W is assembled, the support 1 attached to the assembly drawing board 2 is first held at a predetermined raised position as shown in FIG. 13 is the state which protruded from the leg part 11. FIG. In this state, as shown in FIG. 4, a large number of electric wires are hung on the fork portion 12 of the support 1, some of the electric wires are bent in the branch line direction, and the other electric wires are in the main line direction. It is extended. In this way, the electric wire bundle 3 is supported by the fork portion, and the wiring is arranged so that the electric wire bundle 3b on the branch line side is branched from the electric wire bundle 3a on the main line side. , The branch center position is maintained at a fixed position by the reference bar 13, and the shift of the branch center position is reliably prevented.
[0023]
When the wiring work is finished, the wire body 3 is held by the operator, and the support body 10 is brought to the predetermined lowered position as shown in FIG. Tape 4 is wound around bundle 3 (3a, 3b).
[0024]
When the tape winding is finished, as shown in FIGS. 3C and 5, the support body 10 is again pulled up to the predetermined raised position, and the wire bundle 3 after the tape winding is supported on the fork portion 12 in this state. . At this time, the reference bar 13 is pressed from above by the wire bundle 3 after tape winding, and is automatically immersed in the cylindrical portion 15 by the load of the wire bundle 3. Therefore, the wire bundle 3 after winding the tape is properly supported by the fork portion 12 without interfering with the reference rod 13, and no special operation is required to immerse the reference rod 13.
[0025]
FIG. 6 shows another embodiment of the present invention. Also in this embodiment, the height position adjusting means 16 enables the support body 10 to move up and down between a predetermined ascending position and a predetermined descending position, and the reference bar 13 disposed substantially at the center of the fork portion 12 has the leg portion. It is possible to move up and down between a state protruding upward from 11 and a state of immersing in the leg 11, and is biased upward by a biasing means comprising a spring 14 and the like as in the previous embodiment. However, in addition to these structures, the position of the fork 12 can be changed with respect to the leg 11 between a predetermined raised position and a lowered position retracted from this position.
[0026]
That is, the fork portion 12 is fitted to the leg portion 11 so as to be slidable in the up-down direction in a non-rotating state, and a locking means for locking the fork portion 12 to the leg portion 11 at a predetermined raised position. Is provided. In the example shown in the figure, as the locking means, ball plungers 17 that protrude elastically outward are provided on both side portions near the upper end of the leg portion 11, while fitting to the leg portion 11 at the lower end of the fork portion 12. An engaging hole 18 corresponding to the ball plunger 17 is provided in the portion to be operated. When the fork portion 12 is in the predetermined raised position, the ball plunger 17 is locked in the engagement hole 18, and when the fork portion 12 is pushed down with a force of a predetermined value or more from this state, the ball plunger 17 is moved to the leg portion. 11 is pushed into the wall surface and the locking is released.
[0027]
The operation of the support tool 1 of this embodiment will be described. When the wire harness W is assembled, the support tool 1 attached to the assembly drawing board 2 is, as shown in FIG. 10 is held at a predetermined raised position, the fork portion 12 is at a predetermined raised position with respect to the leg portion 11, and the reference bar 13 protrudes from the leg portion 11. This state is the same as FIG. 3A of the previous embodiment. In this state, a large number of wires are hung on the fork portion 12 of the support 1 and bent so that a part of them is branched. The branch center position is kept at a fixed position by the reference bar 13.
[0028]
When the wiring work is finished, next, as shown in FIG. 6B, only the fork portion 12 is pushed down to the lowered position, and in this state, the branch portion of the wire bundle 3 is temporarily fixed to maintain the branch shape. Thus, the so-called re-hanging is performed. At this time, since the fork portion 12 is lowered, it does not interfere with the hanging operation, and the reference rod 13 is in the protruding state at the raised position, and the branch center position is prevented from shifting during the hanging operation. Is done.
[0029]
When the temporary fixing of the branch portion by hooking is completed, the entire support body 10 is brought to the lowered position as shown in FIG. 6C, and tape is wound around the electric wire bundle 3 (3a, 3b) over the branch portion and the vicinity thereof. Then, the support body 10 is again pulled up to a predetermined ascending position, and the wire bundle 3 after tape winding is supported on the fork portion 12 in this state. The action in each state of FIGS. 6C and 6D is the same as the action in each state of FIGS. 3B and 3C of the previous embodiment.
[0030]
In addition, the specific structure of the support of this invention can be variously changed besides the said embodiment. For example, the fork portion is not limited to the one having the three wire hook portions 12a as in the above embodiment, and may be one in which, for example, two wire hook portions are connected in a U shape. Even when the fork portion is formed in this way, a reference rod that can be moved up and down in a state of projecting upward from the leg portion and a state of being immersed in the leg portion may be provided at a substantially central position.
[0031]
【The invention's effect】
As described above, the wire harness assembling tool of the present invention has the reference rod for setting the center of the wire harness branch at substantially the center position of the fork portion, enables the reference rod to move up and down, and biases it. Since it is biased upward by the means, the branch center position can be correctly regulated by the reference rod, and thereby the dimensional accuracy of each part of the wire harness based on the branch position can be increased. Moreover, interference between the wire bundle and the branch center setting member can be avoided when the wire bundle after winding the tape on the support again, and no lever operation or the like is required to avoid this interference. The operability can be improved.
[0032]
Further, in addition to such a configuration, there is provided a height position adjusting means for changing the position of the support body including the fork portion and the reference rod between the raised position and the lowered position. If the position can be changed between the predetermined ascending position and the descending position, the fork is lowered when the tape is hooked again at the branching position after the wiring, and then the tape is supported when winding the tape around the branching section and the wire bundle in the vicinity thereof. By retracting the tool body to the lowered position, these operations can be easily performed.
[Brief description of the drawings]
FIG. 1 is a perspective view partially showing an assembly drawing board to which a wire harness assembly support according to the present invention is attached and a wire harness assembled on the assembly drawing board.
FIG. 2 is a perspective view of a wire harness assembling support according to an embodiment of the present invention.
FIGS. 3A, 3B, and 3C are explanatory views showing states of the wire harness assembling support in each work stage. FIGS.
FIG. 4 is a perspective view showing a state in which a number of electric wires are hung on the wire harness assembling support.
FIG. 5 is a perspective view showing a state where a wire bundle after tape winding is supported on the wire harness assembling support tool.
FIGS. 6A, 6B, 6C, and 6D are explanatory views showing states of the wire harness assembling support according to another embodiment at each work stage. FIGS.
FIG. 7 is a perspective view showing an example of a conventional wire harness assembling support.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wire harness assembly support tool 2 Assembly drawing board 3 Electric wire bundle 10 Support tool main body 11 Leg part 12 Fork part 12a Electric wire hook part 13 Reference | standard rod 16 Height position adjustment means

Claims (3)

A wire harness assembly support tool used at a wire harness branching point when assembling a wire harness on an assembly drawing board, and a plurality of legs provided upright on the assembly drawing board And a fork portion comprising a wire hook portion, a reference rod for setting the center of the wire harness branch being disposed at a substantially central position of the fork portion, and a state in which the reference rod protrudes above the leg portion and the leg Provided with a biasing means that can move up and down in a state of being immersed in the part and biasing the reference bar upward, and when a load exceeding the biasing force of the biasing means is applied to the reference bar from above A wire harness assembling support device, wherein the wire harness is configured to be immersed in the leg portion. A height position adjusting means is provided that enables the position of the support body including the leg portion, the fork portion and the reference rod to be changed between a raised position where the fork portion receives the wire bundle of the wire harness and a lowered position where the fork portion is retracted from this position. The wire harness assembling support according to claim 1, wherein the wire harness assembling support is provided. The wire harness assembling tool according to claim 2, wherein the fork portion can be changed in position between a predetermined raised position and a lowered position retracted from the position with respect to the leg portion.

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