JPH0869721A - Supporting tool for assembly of wire harness and adapter for supporting tool used for the same - Google Patents

Abstract

PURPOSE: To prevent a branch wire diverged by a supporting tool from being positioned in large eccentricity to outside the supporting tool by receiving a bundle of electric wires tightly in well adaption to the diameter of the bundle of electric wires to be supported. CONSTITUTION: A supporting tool S has an adapter 40 which varies the center position and inner width of an electric wire reception part 10 from La to Wa. The adapter 40 is equipped with a circumferential groove 43. The wire reception part 10 is fitted in the groove 43, and the adapter 40 is removably mounted on the supporting tool S.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembling support tool for receiving an electric wire forming a wire harness when assembling the wire harness and a support tool adapter attached to the assembly support tool.

[0002]

2. Description of the Related Art Generally, a wire harness includes a wiring board on which an assembly diagram of the wire harness after assembly is drawn, and a plurality of assembly supports arranged on the wiring board according to the assembly diagram. It is assembled by using an assembly drawing board including a tool. In order to assemble a wire harness, a plurality of electric wires cut into a predetermined length are received by the assembly supporting tool and wired on a wiring board to form a branch-shaped electric wire bundle according to the assembly diagram. Is formed, and then the outer circumference is wrapped with tape or the like so that the bundle of electric wires does not come apart, and finally, accessory parts such as clamps and protectors are attached.

By the way, each of the assembling support tools has a substantially U-shaped wire receiving portion for receiving the wire. The U-shaped inner width of the electric wire receiving portion is set according to the thickness of the electric wire bundle to be received. That is, the wire receiving portion that receives the trunk portion of the wire harness with a thick wire bundle has a large inner width dimension, and the wire receiving portion that receives the branch portion of the wire harness with a thin wire bundle is
Inner width is reduced.

[0004]

As described above, various types of assembling support tools are arranged on the assembly drawing board, from the small to large inner width of the wire receiving portion. Therefore, there are the following problems. (1) According to the form of the wire harness to be assembled, the assembly support tool used to support the main line is
When using an assembly drawing board having a large inner width, the assembly support tool used to support the branch line portion must have a small inner width. However, there is a problem in that various types of assembling support tools having different inner width dimensions must be prepared in advance in stock. Further, in the production of the assembly drawing board, a mounting mistake of the assembly support tool (for example, an assembly support tool having a small inner width dimension must be mounted, but an assembly support tool having a large inner width dimension is mounted. There is also a risk of mistakes.

(2) As described above, the assembly support tool is used properly depending on the thickness of the bundle of electric wires to be supported.
It is not used properly according to the specifications of the wire harness to be assembled. More specifically, the number of electric wires included in the wire harness varies depending on its specifications, and the thickness of the electric wire bundle in the main line portion and the branch line portion also differs depending on the specifications. However, even if the specifications are different, if the basic form of the wire harness is the same, even if there is a slight difference in the thickness of the wire bundle, a common assembly drawing board Is used.

For this reason, as shown in FIG. 5, when the wire bundle WE of the wire harness of the specification having a small number of electric wires is supported, the branch wire 2 branched by the assembling support 1 is provided.
Is largely biased to the outside of the wire receiving portion 3. on the other hand,
The indicated dimension indicated in the assembly diagram is based on the center of the U-shape of the wire receiving portion 3. Therefore, if the branch wire 2 is biased to the outside of the electric wire receiving portion 3, the length of the branch wire 2 after assembly will deviate from the indicated dimension, and the assembly accuracy of the wire harness will deteriorate. is there.

(3) The connector C is generally attached to the tip of the branch wire 2. However, as shown in FIG. 6A, the number of wires included in the branch wire 2 and the inner width of the wire receiving portion 3 are included. If the dimensions match, the connector C can be held straight without tilting. However, as shown in FIG. 2B, the number of electric wires included in the branch wire 2 is small and the electric wire receiver If it does not match the inner width of the part 3, the wire receiving part 3
When the branch line 2 is received by the connector C, the connector C is tilted in an anisotropic manner, and the end surface T of the connector C, which serves as a measurement reference of the branch line 2, cannot be fixed. Therefore, (2) above
In addition to the above problem, there is also a problem that the assembling dimension of the branch line 2 portion further deviates from the assembling instruction dimension.

Therefore, a first object of the present invention is that a support tool for assembling a wire harness of one type can support a wire bundle by adapting it from a thick one to a thin one. An object is to provide a support adapter. A second object of the present invention is to provide a wire harness assembling support capable of facilitating the manufacture of the assembly drawing board and improving the wire harness assembly dimensional accuracy.

[0009]

Means and Actions for Solving the Problem To achieve the first object, the support tool adapter according to claim 1 supports an electric wire, which is a constituent element of the wire harness, when the wire harness is assembled. A support tool adapter attachable to a support tool for assembling a wire harness for a main body including a plate member having a predetermined plate thickness, and a downward opening from a predetermined position on the upper surface of the main body, An electric wire insertion groove having a predetermined width and penetratingly formed from the front surface to the rear surface of the main body, and a fitting provided on the main body for detachably attaching the main body to the electric wire receiving portion of the assembly support tool. And a section.

According to the above structure, the main body can be removably attached to the wire receiving portion by fitting the fitting portion and the wire receiving portion of the assembly support tool. The main body has a wire insertion groove of a predetermined width that opens downward from a predetermined position on the upper surface and penetrates from the front surface to the rear surface. It can be inserted into the wire insertion groove and received. That is, by attaching the main body to the wire receiving portion, the center position and the inner width dimension of the wire receiving portion can be changed to the required center position and width dimension.

In order to achieve the first object, the support tool adapter according to claim 2 is the support tool adapter according to claim 1, wherein the fitting portion extends in the same direction as the wire insertion groove. It is characterized in that it includes a pair of recesses formed on both side surfaces of the main body so as to be fitted with the electric wire receiving portion. According to the above configuration, the above-mentioned claim 1
The same operation as the adapter for a support according to the present invention is achieved. In particular,
If the electric wire receiving portion is inserted into the pair of recesses formed on both side surfaces of the main body, the main body can be fitted into the electric wire receiving portion and easily attached. Moreover, the adapter for the support tool can be easily removed from the wire receiving portion only by pulling out the main body from the wire receiving portion.

A support tool for assembling a wire harness according to a third aspect of the present invention for achieving the second object is a support tool for assembling a wire harness used when assembling a wire harness on a wiring board. A substantially U-shaped electric wire receiving portion that receives an electric wire that is a component of a wire harness, and a support portion that supports the electric wire receiving portion at an upper end portion,
A fixing portion that is provided at the lower end of the pillar portion and that is fixed to the wiring board and the electric wire receiving portion is detachable, and by being attached to the electric wire receiving portion, a substantially U-shaped electric wire receiving portion. And a width adjusting member that narrows the width of the.

According to the above structure, the width adjusting member can reduce the inner width dimension of the wire receiving portion to a predetermined inner width dimension. With this, it is possible to change the inner width dimension of the wire receiving portion to a desired dimension by replacing the width adjusting member, and one type of assembling support tool is suitable for wire bundles having a plurality of thicknesses. It becomes possible to do.

[0014]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is an enlarged exploded perspective view of essential parts showing a state in which a wire harness WH is assembled on an assembly drawing board. With reference to FIG. 1, the assembly drawing board A is a component of a wiring board B on which an assembly diagram (not shown) of a wire harness after assembly is drawn and a wire harness WH to be assembled. It has an assembly support tool (hereinafter, referred to as “support tool”) S that supports a certain electric wire. Each electric wire is received by the support S and laid on the wiring board B to form an electric wire bundle having a branch shape according to the assembly diagram. Then, the wire bundle formed in this manner is bound by taping or the like, and finally, accessory parts such as clamps and protectors are attached to complete the assembly of the wire harness WH.

It should be noted that the above-mentioned assembly diagram is drawn in full-scale in the form of the wire harness after completion of assembly, and the assembly instruction dimensions of the main line portion W1 and the branch line portion W2 of the wire harness are also entered. . A line that passes through the center (the center of the U-shaped portion shown in the drawing) of the wire receiving portion 10 of each support S serves as a reference for this assembly instruction dimension. The support S is
A substantially U-shaped electric wire receiving portion 10 that receives an electric wire that is a component of a wire harness, a support portion 20 that supports the electric wire receiving portion 10 at an upper end portion, and a support member provided at a lower end portion of the support portion 20. It has a fixing portion 30 fixed to the wire plate B and a support tool adapter (hereinafter referred to as “adapter”) 40 that is detachably attached to the electric wire receiving portion 10.

A feature of this embodiment is that an adapter 40 is provided which functions as a width adjusting member for adjusting the substantially U-shaped inner width of the electric wire receiving portion 10. This adapter is provided. 40, the electric wire receiving capacity of the support S can be changed. Here, the electric wire receiving capacity refers to the amount of electric wires to be received and the receiving position thereof, which is determined from the center position and the inner width dimension of the substantially U-shaped electric wire receiving portion 10.

The electric wire receiving portion 10, the column portion 20 and the fixing portion 30 are publicly known ones which are integrally formed by a round rod made of metal. A screw 31 is formed on the fixed portion 30, and a mounting washer 32 with a nut is provided.
Then, the fixing portion 30 is inserted into the mounting hole of the wiring board B, and the nut 33 is tightened from the lower end of the fixing portion 30, so that the wiring board B is sandwiched between the nut 33 and the mounting washer 32. It is designed to be fixed.

FIG. 2 is a partial sectional perspective view of the adapter 40. The adapter 40 will be described in detail with reference to FIGS. 1 and 2. The adapter 40 includes a main body 41, an electric wire insertion groove 42 formed in the main body 41, and the main body 41.
And a peripheral groove 43 as a fitting portion for detachably attaching the main body 41 to the electric wire receiving portion 10.

The main body 41 can be made of resin, for example, and is composed of a plate member having a predetermined plate thickness d. The wire insertion groove 42 has a predetermined width Wa and is formed so as to penetrate from the front surface 41b to the rear surface 41c of the main body 41, and has an opening 42a opened substantially at the center of the upper surface 41a of the main body 41. There is.

The circumferential groove 43 is formed on both side surfaces 41d of the main body 41 and is continuous with the pair of side groove portions 43a extending in the same direction as the electric wire insertion groove 42 and the main groove 41a. Bottom groove portion 43 formed on the bottom surface 41e of
b. The inner surface portion of the circumferential groove 43 has a semicircular shape, and the diameter of the semicircle corresponds to the outer diameter of the round bar forming the electric wire receiving portion 10. In addition, the side groove portion 43
The distance between the bottom surfaces of a is substantially equal to the inner width dimension of the U-shape of the wire receiving portion 10. Further, the bottom groove portion 43b is formed in a curved shape, and the radius of curvature of this curved portion is substantially matched with the radius of curvature of the substantially U-shape of the electric wire receiving portion 10. As a result, the adapter 40 can be fitted to the electric wire receiving portion 10.

According to the present embodiment, as shown in FIG. 1, the adapter 40 is inserted from above so that the adapter 40 is fitted into the wire receiving portion 10. At this time, the fitting portion of the adapter 40 and the electric wire receiving portion 10 are fitted, and the adapter 40 can be detachably attached to the electric wire receiving portion 10. Particularly, in the present embodiment, the pair of straight portions 11 of the wire receiving portion 10 is inserted into the side groove portion 43a of the adapter 40 having an inner diameter corresponding to the outer diameter of the straight portion 11, and the curved portion 12 of the wire receiving portion 10 is inserted.
Is similarly inserted into the bottom groove portion 43b of the adapter 40 having an inner diameter corresponding to the outer diameter of the curved portion 12. As a result, there is an advantage that the adapter 40 can be attached and detached very easily with respect to the electric wire receiving portion 10.

Further, since the wire insertion groove 42 having the opening 42a is formed in the main body 41 of the adapter 40 from the front surface 41b to the rear surface 41c, the adapter 40
As shown in FIG. 3, the electric wire to be laid is attached from above to the electric wire insertion groove 42 by attaching the electric wire to the electric wire receiving portion 10.
It can be inserted through and received. That is, by attaching the adapter 40 to the wire receiving portion 10, the inner width dimension of the wire receiving portion 10 can be reduced from the original inner width dimension La of the wire receiving portion 10 to Wa.

In this way, the adapter 40 is connected to the electric wire receiving portion 1
The amount of electric wires received by the electric wire receiving portion 10 can be easily changed only by attaching the electric wire to the electric wire 0. This allows
Even when receiving a wire bundle of a wire harness having a small number of wires, there is no play between the wire bundle and the wire receiving portion 10. As a result, it is possible to prevent the branch wire W2 branched by the support S from being largely biased to the outside of the wire receiving portion 10, and the branch wire W after assembly.
The length of 2 can be accurately measured according to the designated dimensions indicated in the assembly diagram.

Further, the following modified examples of the adapter 40 can be considered. FIG. 4 is a perspective view of the adapter 50 according to the modification. Referring to FIG. 4, this adapter 50 differs from the adapter 40 in that the center position of the wire insertion groove 52 provided in the main body 41 is
The side surface 4 of the main body 41 with respect to the center position of the wire insertion groove 42
The point that is offset by a predetermined amount to the 1d side and the width dimension Wb of the wire insertion groove 52 are
The width is smaller than Wa.

Since the other construction is similar to that of the adapter 40, the same reference numerals are given and the description thereof is omitted. According to this adapter 50, the adapter 4
Similarly to 0, the inner width dimension of the wire receiving portion 10 of the support S can be easily reduced from the inner width dimension La of the original wire receiving portion 10 to Wb. Even when receiving the electric wire bundle and the electric wire receiving portion 10
It can be supported without causing any looseness, and the length of the branch line W2 can be accurately measured. Further, as shown in FIG. 3, in the case of supporting the tip portion of the thin branch wire W2 of the bundle of electric wires, the center of the branch wire W2 and the center of the electric wire receiving portion 52 of the support tool S can be substantially aligned with each other. The connector C can be fixed straight without rattling (without tilting the connector C in an anisotropic manner). As a result, the end surface T of the connector C that serves as a reference when measuring the length of the branch line W2 can be fixed, and the length of the branch line W2 can be measured more accurately.

The center position and inner width of the wire insertion groove of the adapter can be designed and changed according to the thickness of the wire bundle of the wire harness to be assembled.
Thus, in the support tool S according to the present embodiment, the adapter 4
Since the center position and the inner width dimension of the wire receiving portion 10 can be changed to the required center position and the inner width dimension by 0, 50, one type of support tool can bundle the wire bundles having a plurality of thicknesses. It becomes possible to adapt to support. As a result, when manufacturing the assembly drawing board A, it is not necessary to prepare many kinds of supporting tools in advance, and it is possible to manufacture many kinds of assembly drawing boards using a small number of kinds of supporting tools. There are advantages.

The present invention is not limited to the above-mentioned embodiment, but the above-mentioned adapters 40 and 50 are used in the main body 4
Although the side groove portion 43a is provided on both side surfaces 41d and the bottom groove portion 43b is provided on the bottom surface 41e, the side groove portion 43a is provided on both side surfaces 41d.
You may only provide only. Further, in this case, in addition to forming the semicircular groove, a long hole having an inner diameter substantially the same as the outer diameter of the round bar forming the wire receiving portion 10 may be bored.

[0028]

According to the invention of claim 1, the fitting part of the support tool adapter and the wire receiving part of the assembly support tool are fitted together, and the support tool adapter is simply attached to the assembly support tool. The center position and inner width dimension of the wire receiving part can be changed to the required center position and inner width dimension, so there is play between the wire bundle and the wire receiving part even when supporting a thin wire bundle. You can take it exactly without letting it. As a result, the branch line branched by the assembly support tool can be prevented from being largely biased to the outside of the wire receiving portion, and the length of the branch line after assembly can be accurately measured as designed. You can

Further, even when receiving the tip end of the branch line, it is possible to receive the tip end of the branch line exactly without causing any rattling with the electric wire receiving part. It can be fixed straight without tilting. As a result, it is possible to fix the end surface of the connector, which serves as a standard for measuring the branch line, and to measure the length of the branch line after assembly more accurately as designed.

Moreover, since the support tool adapter can be detachably attached to the electric wire receiving portion, the support tool adapter can be attached only when necessary to change the center position and the inner width dimension of the electric wire receiving portion. There is an advantage. According to the invention of claim 2, the same effect as that of the invention of claim 1 can be obtained, and in particular, the wire receiving portion is simply attached by inserting the wire receiving portion into the pair of recesses formed in the support adapter. In addition, there is an advantage that it can be easily removed only by pulling it out from the electric wire receiving portion.

According to the invention of claim 3, since the inner width dimension of the electric wire receiving portion can be changed to a predetermined inner width dimension by the width adjusting member, one type of assembly having a large inner width dimension can be assembled. Even a supporting tool for a wire can be adapted to a wire bundle having a plurality of thicknesses. Accordingly, when manufacturing the assembly drawing board, it is not necessary to prepare many kinds of assembly supporting tools in advance, and it is possible to manufacture many kinds of assembly drawing boards using a small number of kinds of assembly supporting tools. .

[Brief description of drawings]

FIG. 1 is an enlarged exploded perspective view of essential parts showing a state in which a wire harness is assembled by an assembly drawing board including a support according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional perspective view of an adapter.

FIG. 3 is an enlarged plan view of an essential part of the assembly drawing board showing a state in which a bundle of electric wires is received by a supporting tool provided with an adapter.

FIG. 4 is a perspective view of an adapter according to a modification.

FIG. 5 is an enlarged perspective view of an essential part showing a state in which a wire bundle is supported by a conventional support tool.

FIG. 6A is an enlarged perspective view of an essential part showing a state in which a terminal portion of a branch line is supported by a conventional supporting tool. (B) It is a principal part expanded perspective view which showed the state which has supported the terminal part of the branch line by the conventional support tool which does not match the thickness of an electric wire bundle.

[Explanation of symbols]

 A Assembly drawing board WH Wire harness W1 Main line W2 Branch wire B Wiring board S Support tool 10 Wire receiving part 20 Strut part 30 Fixing part 40 Adapter 41 Main body 41a Upper surface 41b Front surface 41c Rear surface 41d Side surface 42 Wire insertion groove 42a Opening 43 circumference Groove 50 Adapter 52 Wire insertion groove

Claims (3)

[Claims] 1. A support tool adapter attachable to a wire harness assembly support tool for supporting an electric wire, which is a component of the wire harness when the wire harness is assembled, and having a predetermined plate thickness. A main body including a plate member, an electric wire insertion groove having a predetermined width, which is opened downward from a predetermined position on the upper surface of the main body, is formed through the front surface to the rear surface of the main body, and is provided in the main body, An adapter for a support tool, comprising: a fitting portion for detachably attaching the main body to an electric wire receiving portion of the assembly support tool. 2. The support tool adapter according to claim 1, wherein the fitting portion extends in the same direction as the electric wire insertion groove and is formed on both side surfaces of the main body, and can be fitted with the electric wire receiving portion. An adapter for a support tool including a pair of concave grooves. 3. A support tool for assembling a wire harness used when assembling a wire harness on a wiring board, which is a substantially U-shaped wire receiving portion for receiving an electric wire which is a constituent element of the wire harness, A pillar portion that supports the electric wire receiving portion at the upper end portion, a fixing portion that is provided at the lower end portion of the pillar portion and is fixed to the wiring plate, and a detachable portion that is detachably attached to the electric wire receiving portion and is attached to the electric wire receiving portion. And a width adjusting member for narrowing the width of the substantially U-shaped electric wire receiving portion.