WO2012096011A1

WO2012096011A1 - Excess-length-regulating protector

Info

Publication number: WO2012096011A1
Application number: PCT/JP2011/063335
Authority: WO
Inventors: 智宇治田
Original assignee: 住友電装株式会社
Priority date: 2011-01-13
Filing date: 2011-06-10
Publication date: 2012-07-19
Also published as: JP2012147594A

Abstract

The objective of the present invention is to enable an excess-length-regulating protector, which regulates the path of an electrical wire while protecting the electrical wire, to be more simply structured. The excess-length-regulating protector is for regulating the path of an electrical wire while protecting the electrical wire. The excess-length-regulating protector is provided with a protector main body, which is a sheet material formed into a cylindrical shape. Notches are formed along the outer perimeter of the protector main body. The notches are formed in a shape that is such that a portion of the outer periphery of the protector main body is eliminated and the remainder is separated.

Description

Surplus length control protector

This invention relates to a technique for protecting an electric wire while regulating the route of the electric wire.

Patent Document 1 discloses a technique for accommodating a wire harness in a bent state when an assembly such as a meter unit is assembled to an assembly such as an instrument panel.

Patent Document 1 discloses a configuration in which a pair of protector bodies are connected by a hinge. In patent document 1, a wire harness is accommodated in a pair of protector main body in the state bent at the hinge part.

JP 2000-209732 A

However, in Patent Document 1, the overall configuration including the U-shaped cross section that accommodates the wire harness and the hinge structure portion that couples the pair of protector bodies is designed according to the layout of the wire harness to be applied, etc. It is necessary to form by resin mold molding, and the manufacturing cost is high.

Therefore, an object of the present invention is to make it possible to more easily manufacture a surplus length restriction protector that protects an electric wire while restricting the route of the electric wire.

In order to solve the above problem, a first aspect is a surplus length restricting protector for protecting the electric wire while restricting a route of the electric wire, and includes a protector main body portion in which a plate material is deformed into a cylindrical shape, At least one notch is formed along the outer periphery of the protector main body so as to separate the remaining portion except for a part of the outer periphery of the protector main body.

The second aspect is a surplus length regulating protector according to the first aspect, and a plurality of the cuts are formed along the longitudinal direction of the protector main body.

The third aspect is a surplus length regulating protector according to the first or second aspect, wherein the protector main body is formed in a rectangular tube shape.

The fourth aspect is a surplus length regulating protector according to any one of the first to third aspects, wherein the incision has a non-linear incision portion.

A fifth aspect is a surplus length regulating protector according to any one of the first to fourth aspects, wherein the plate member is deformed into a cylindrical shape so that both side portions thereof are overlapped, and both sides of the plate member are It further includes a pin member that is disposed so as to penetrate the overlapping portion of the parts and maintains the cylindrical shape of the plate material.

According to the first aspect, the protector body is bent in the direction to open the cut. For this reason, the electric wire accommodated in the protector main-body part is controlled so that it may bend in a fixed bending direction, and the path | route of an electric wire can be controlled. Moreover, an electric wire can be protected within a protector main-body part. Thereby, a surplus length control protector can be manufactured comparatively easily by carrying out a deformation | transformation, a notch | incision formation process, etc. of a board | plate material.

According to the second aspect, since the plurality of cuts are formed along the longitudinal direction of the protector body, the electric wire can be gently bent.

According to the third aspect, it is easy to stabilize the bending state of the protector body by stabilizing the position of the cut around the outer periphery.

According to the 4th aspect, since the said notch has a non-linear notch part, the twist of a protector main-body part can be suppressed by fitting both the side edge parts of the non-linear notch part. For this reason, the electric wire in a protector main-body part cannot be exposed outside easily, and can protect an electric wire more reliably.

According to the fifth aspect, the cylindrical deformation state of the plate material can be reliably and easily maintained by the pin member.

It is a perspective view which shows the long regulation protector which concerns on embodiment. It is a perspective view which shows the long regulation protector which concerns on embodiment. It is sectional drawing in the notch | incision of a surplus length control protector same as the above. It is a perspective view which shows the state which bent the surplus length control protector same as the above. It is a top view which shows the state which expand | deployed the board | plate material. It is a perspective view which shows a pin member. It is explanatory drawing which shows one usage example of a surplus length control protector.

Hereinafter, the surplus length restriction protector according to the embodiment will be described. 1 and 2 are perspective views showing a surplus length regulating protector 20 according to the embodiment, FIG. 3 is a cross-sectional view of the surplus length regulating protector 20 at a notch 25, and FIG. 4 shows a bending of the surplus length regulating protector. FIG. FIG. 5 is a plan view showing a state in which the plate member 23 constituting the surplus length regulating protector 20 is developed, and FIG. 6 is a perspective view showing a pin member 30 for maintaining the plate member 23 in a cylindrical shape. .

The surplus length regulating protector 20 is configured to accommodate and protect at least one electric wire 10. Further, the surplus length restriction protector 20 is configured to restrict the path of the electric wire 10 in which the extra length is set when the electric wire 10 to be accommodated is assembled in a vehicle or the like. The electric wire 10 may be singular or plural. A bundle of a plurality of electric wires 10 in a predetermined form may be referred to as a wire harness, and the wire harness is also an application target of the extra length regulating protector 20.

That is, the surplus length restriction protector 20 includes a protector main body 22. The protector main body 22 is formed by deforming the plate member 23 into a cylindrical shape.

The plate member 23 is a member formed in a deformable elongated plate shape. The plate member 23 is preferably a plate member having a certain degree of elasticity so that it can be bent gently with a bending radius as large as possible when the protector body 22 is bent as will be described later. In addition, it is preferable that the plate member 23 has a certain degree of plasticity in order to be able to make a crease when the plate member 23 is deformed into a rectangular tube shape. As the plate member 23, a plate member made of resin such as polypropylene, or paper having a certain degree of stiffness can be used.

The plate member 23 is bent and deformed so as to form a square tube shape. Here, the plate member 23 is divided into five regions in the width direction, and is folded along the crease L at the boundary of each divided region so as to overlap the regions on both sides, and deformed into a rectangular tube shape. Is done. In the description to be described later, among the divided regions of the plate member 23, the region in the center in the width direction is the first region 23a, the two regions outside the first region 23a are the second region 23b, and the two regions outside the second region 23b. Is represented as a third region 23c. In FIG. 5, the crease L is indicated by a dotted line. Actually, the fold L may be invisible, or may be printed on the plate 23 or a linear or dotted dent formed on the plate 23. May be. Further, the protector main body may be formed in a cylindrical shape, an elliptical cylindrical shape, or a polygonal cylindrical shape.

Further, the cylindrical protector main body 22 has a cut 25 formed along the outer periphery thereof. A plurality of the cuts 25 are formed at intervals in the longitudinal direction of the protector main body 22. Note that there is no need to provide a plurality of cuts 25, and at least one cut is sufficient. Further, the intervals between the plurality of cuts 25 need not be the same. The cut 25 is formed in a linear cut shape that separates the remaining portion of the cylindrical protector main body portion 22 except for a part of the outer periphery thereof. Here, the notch 25 is formed in the plate member 23 so as to cross the first region 23a and the two second regions 23b on both outer sides thereof. Then, when the plate material 23 is deformed into a square tube shape so that the third regions 23c on both sides are overlapped with each other, the rectangular tube-shaped protector main body portion 22 except for the third region 23c on one side, The cuts 25 are formed so as to separate the entire first region 23a and the second region 23b on the three sides. About how much of the outer periphery of the cylindrical protector body part is not separated, on the contrary, how much it is separated depends on the shape of the protector body part, the material, how much bending is required, etc. It is determined. In general, it is preferable to leave one side of the protector main body (for example, one side in the case of a polygonal cylinder), and cut the remainder to form a cut. When forming the plurality of cuts 25, it is preferable that the portion to be cut (or the portion to be cut off) is provided at an integrated position aligned on the outer periphery of the protector body.

Further, the notch 25 has a straight line shape across the second region 23b in the two second regions 23b. Further, the cut 25 is formed in a non-linear cut portion 26 in the first region 23a. More specifically, the cut portion 26 is formed in a linear cut shape that draws a semicircular shape. A semicircular protruding piece portion 26a is formed on one of both side edge portions of the cut portion 26, and a semicircular recessed portion 26b is formed on the other side edge portion. Therefore, in the state where the cut 25 is closed, the protruding piece portion 26a is fitted in the recessed portion 26b at the cut portion 26. Thereby, the position shift of the both edge parts of the notch part 26 is suppressed, and the twist of the protector main-body part 22 by the notch 25 is suppressed. The cut portion 26 does not need to have the semicircular shape, and may be a polygonal shape such as a triangular shape or a trapezoidal shape. That is, it is only necessary that both side edges of the cut portion 26 are fitted to each other and the positional deviation in the longitudinal direction is suppressed.

In the above example, the cut 25 has a straight cut shape with no gap, but may have an opening shape with a gap.

Further, the plate member 23 is maintained in a cylindrical shape by the following configuration.

That is, the pin insertion hole 24 is formed in the two third regions 23c on both sides of the plate member 23, and the pin member 30 is fixed to the pin insertion hole 24 in a state where the two third regions 23c are overlapped. Thus, the overlapping state of the two third regions 23c and the cylindrical shape of the plate member 23 are maintained.

More specifically, the pin member 30 is a member formed of resin or the like, and has a configuration in which flat head portions 32 are formed at both ends of the shaft portion 31. Further, a pin insertion hole 24 is formed extending from the boundary portion of the third region 23c with the second region 23b toward the center in the width direction of the third region 23c. In the pin insertion hole 24, a boundary portion between the third region 23c and the second region 23b is formed in a large opening portion 24a (here, circular) that opens larger than the other portions. And the board | plate material 23 is formed so that the some large opening part 24a may be located in a line along the boundary line of the 2nd area | region 23b and the 3rd area | region 23c among the board | plate materials 23, and the 2nd area | region 23b and the 3rd area | region. It can be easily bent along the boundary line with 23c. In addition, a portion extending from the large opening portion 24 a toward the central portion in the width direction of the third region 23 c is formed in a linear opening portion 24 b having an opening width substantially equal to the thickness of the shaft portion 31. The shaft portion 31 can be disposed in the linear opening portion 24b so that the head portion 32 of the pin member 30 is inserted into the pin insertion hole 24 from the side thereof. Further, in a state where the two third regions 23c are arranged so as to overlap each other, the linear opening portions 24b are arranged at positions where the end portions thereof overlap each other. Then, by inserting the head portion 32 of the pin member 30 into both the pin insertion holes 24 and disposing the shaft portion 31 in the distal end portions of the two linear opening portions 24b, the pin member 30 can be connected to the third region 23c. It arrange | positions so that an overlap part may be penetrated. In this state, the two overlapped third regions 23c are sandwiched between the two heads 32, and the overlapping state of the two third regions 23c and the cylindrical shape of the plate member 23 are maintained. The

In this embodiment, the pin insertion hole 24 is formed continuously with the cut 25, but it is not always necessary. However, by forming the pin insertion hole 24 continuously with the notch 25, the pin insertion hole 24 can be opened larger, and the head 32 of the pin member 30 can be easily inserted.

The pin member 30 may be attached to all of the plurality of pin insertion holes 24 or may be attached to some of them. When the pin member 30 is attached to a part of the plurality of pin insertion holes 24, the pin member 30 may be attached every predetermined number (for example, every two), or the end of the protector main body portion 22 may be attached. The pin member 30 may be attached at a close interval at a portion or a portion that is to be bent greatly, and at a relatively coarse interval at other portions.

An example of use of the surplus length restriction protector 20 configured as described above will be described.

That is, as shown in FIG. 7, when the mounting member 60 such as a vehicle meter is attached to the mounted member 50 such as an instrument panel in the vehicle, the electric wire 10 extending from the mounted member 50 side is attached. It is assumed that it is connected to the member 60. In this case, the electric wire 10 is longer than the length necessary for the original wiring, that is, a surplus length is set. Thereby, in the state before attaching the attachment member 60 to the to-be-attached member 50, the manageability of the electric wire 10 is made favorable and the connection operation of the said electric wire 10 and the attachment member 60 can be performed easily.

The extra length restriction protector 20 is attached to the electric wire 10 as described above. That is, the electric wire 10 is accommodated in the extra length regulating protector 20. In a state before the attachment member 60 is attached to the attached member 50, the electric wire 10 and the surplus length regulating protector 20 extend in a straight line, and the connection work between the electric wire 10 and the attachment member 60 can be easily performed. (See the two-dot chain line in FIG. 7). When the attachment member 60 is brought close to the attached member 50 in this state, the surplus length regulating protector 20 is bent as a whole so as to bend mainly at the uncut portion on the opposite side of each of the cuts 25 while opening the cuts 25. . At this time, the surplus length restricting protector 20 is bent in the direction of opening the respective cuts 25, so that the bending direction, that is, the bending direction of the electric wire 10 is stable. When the attachment member 60 is attached to the attached member 50, the electric wire 10 is protected by the surplus length restriction protector 20 and is maintained in a state where it is restricted to a certain degree of bending (see the solid line in FIG. 7). .

According to the surplus length regulating protector 20 configured as described above, the protector main body 22 is bent in the direction of opening the cut 25, and therefore the electric wire accommodated in the protector main body 22 bends in a certain bending direction. Thus, the path of the electric wire 10 can be restricted. Moreover, the electric wire 10 can be protected within the protector main body 22. In this way, the surplus length restricting protector 20 can be manufactured relatively easily by performing the cut forming process and the deformation process on the plate member 23.

Moreover, when the required length or thickness of the electric wire 10 to be applied changes, the punching shape can be changed by changing the design of the punching die and the deformed shape of the plate member 23 can be changed. For this reason, it is possible to easily cope with such a change in application target. In particular, when the required length of the electric wire 10 is changed, it can be dealt with only by changing the length of the plate member 23.

Further, since the plurality of cuts 25 are opened little by little, the surplus length restricting protector 20 is bent to a necessary degree, so that the electric wires 10 are hardly exposed at the respective cuts 25. For this reason, the electric wire 10 can be more reliably protected from the outside.

In addition, in the case of Patent Document 1, when attaching the attachment member to the attachment member, in a state before attaching the attachment member to the attachment member so that the pair of protector bodies bend in a certain direction stably, In general, the pair of protector main body portions are set so as to be bent to some extent, and accordingly, it is necessary to set a sufficiently long extra length for the electric wire 10. On the other hand, in this embodiment, since the linear cut | notch 25 is formed so that the remainder may be separated except for a part of outer periphery of the protector main-body part 22, the protector main-body part 22 is the direction which opens the notch 25. Can only bend to. Therefore, when the both ends of the surplus length restriction protector 20 are moved in the direction in which the surplus length restriction protector 20 approaches, the surplus length restriction protector 20 tends to bend in a direction in which the cut 25 is opened relatively stably. For this reason, in the state before attaching the attachment member 60 to the to-be-attached member 50, the electric wire 10 and the surplus length control protector 20 can be arrange | positioned linearly, and it can set to the minimum length required on the operation | work. There is also an advantage.

Further, since the plurality of cuts 25 are formed in the protector body 22 along the longitudinal direction, the electric wire 10 can be bent with a large bending radius.

Furthermore, since the protector body 22 is formed in a square cylinder shape, the notch 25 (or uncut position) on the outer periphery is stabilized, and the bending operation and the bent state of the protector body 22 are stabilized. easy.

Furthermore, since the notch 25 has the non-linear notch part 26, in the state where the notch 25 is not open, both side edges of the notch part 26 (semicircular protruding piece part 26a and semicircle) Shaped recess 26b) fits together. For this reason, the twist of the protector main-body part 22, especially the twist in the part which formed the cut 25 is suppressed effectively. Thereby, for example, the electric wire 10 in the protector main body 22 is less likely to be exposed to the outside during transportation, storage, etc. before attaching the protector main body 22 and the electric wire 10 to the attachment target location, and the electric wire 10 is more reliably secured. Can protect.

In addition, since the overlapping state of the third regions 23c on both sides of the plate material 23 is maintained by the pin member 30 and the cylindrical shape of the plate material 23 is maintained, the cylindrical shape can be easily and reliably maintained.

However, the configuration for maintaining the plate member 23 in a cylindrical shape is not limited to the above example. You may make it maintain the cylindrical shape of a board | plate material by adhere | attaching or welding the both sides of a board | plate material with an adhesive agent. Further, partial projections, holes, cuts, or the like may be formed on both sides of the plate material, and the cylindrical shape of the plate material may be maintained by their locking structure.

Although the present invention has been described in detail as described above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

Claims

It is a surplus length restriction protector for protecting the electric wire while restricting the route of the electric wire,
Provided with a protector body that is deformed into a cylindrical shape.
A surplus length restricting protector, wherein at least one incision is formed along the outer periphery of the protector main body so as to separate the remaining portion except for a part of the outer periphery of the protector main body.
The surplus length restriction protector according to claim 1,
A surplus length regulating protector in which a plurality of the cuts are formed along a longitudinal direction of the protector main body.
The surplus length restriction protector according to claim 1,
The protector body is a surplus length regulating protector formed in a square tube shape.
The surplus length restriction protector according to claim 1,
The notch is a surplus length restricting protector having a non-linear notch.
The surplus length restriction protector according to claim 1,
The plate is deformed into a cylindrical shape so as to overlap both sides thereof,
The surplus length restricting protector further comprising a pin member that is disposed so as to penetrate through the overlapping portions on both side portions of the plate material and maintains the cylindrical shape of the plate material.