JP2019134576A - Wire guide device - Google Patents

Abstract

To provide a wire guide device that has a link member that is difficult to deform and maintains a predetermined connection structure.SOLUTION: A wire guide device 10 includes a plurality of link members 20 arranged side by side between a vehicle body 91 and a slide door 92 movable relative to the body 91. In each of the link members 20, a wire 50 is inserted inside, and link members adjacent in the arrangement direction are connected to each other via a connecting portion 35 so as to be rotatable. The connecting portion 35 includes a first plate portion 26B and a second plate portion 27A in which the respective adjacent link members 20A and 20B are disposed so as to overlap plate surfaces, and a hole portion 29 provided to open to the first plate portion 26B, a shaft part 34 that protrudes from the second plate part 27A, is inserted into the hole portion 29, and serves as a rotation axis of the link member 20, and a reinforcing portion that is provided in the first plate portion 26B and holds the opening shape of the hole 29.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an electric wire guide device that guides, for example, an electric wire spanned between a vehicle body and a slide door of an automobile.

  The cable protection guide device disclosed in Patent Document 1 is a rectangular link frame (link member) that is connected in parallel between a movable part such as a vehicle door and a stationary part, and through which the cable is inserted. It has. The link frame has a link plate, and the link plate has a front connection part and a rear connection part. The front connection part is provided with a connection pin hole, and the rear connection part is provided with a connection pin. Of the link frames that are adjacent in the front-rear direction, the rear connecting portion of the front link frame is overlapped with the front connecting portion of the rear link frame, and the connecting pin is inserted into the connecting pin hole. Each link frame can be rotated with the connecting pin inserted into the connecting pin hole as a rotation axis, and can follow the moving operation of the movable portion.

Patent No. 3897352

  In the above case, when the adjacent link frame body rotates and the rotation angle between the link frame bodies centering on the connection pin becomes large, the rear connection is made to the hole surface of the connection pin hole of the front connection part. There was a concern that excessive stress was applied from the connecting pin of the portion, and the connecting pin hole could not hold a predetermined opening shape (circular shape). If the opening shape of the connecting pin hole is deformed, the rotation angle between the two link frames may not be restricted.

  This invention is completed based on the above situations, Comprising: It aims at providing the electric wire guide apparatus provided with the link member which maintains a predetermined connection structure and is hard to deform | transform.

  The electric wire guide device of the present invention is arranged side by side between a base body and a movable body movable with respect to the base body, the electric wires are inserted inside, and those adjacent in the arrangement direction are connected via a connecting portion. A plurality of link members that are rotatably connected to each other, and the connecting portion includes a first plate portion and a second plate portion in which each of the adjacent link members is disposed to overlap the plate surface, and A hole provided to open in the first plate, a shaft provided to project from the second plate, inserted into the hole, and used as a pivot of the link member, and the first plate And a reinforcing portion that maintains the opening shape of the hole.

  If the link members adjacent in the alignment direction rotate around the shaft portion, the rotation angle between both link members increases, and excessive stress acts from the shaft portion on the hole surface of the hole portion of the first plate portion. Even so, since the reinforcing part provided in the first plate part maintains the opening shape of the hole part, the connecting part can maintain a predetermined connecting structure and prevent the link member from being deformed. it can.

It is a perspective view of the electric wire guide apparatus of Example 1. FIG. It is a perspective view of a link member. It is a rear view of a link member. It is a side view of a link member. It is a top view of the link member connected adjacently in the row direction. It is the sectional view on the AA line of FIG. FIG. 6 is a sectional view taken along line B-B in FIG. 5. It is a side view of the link member connected adjacently in the row direction. It is the schematic of the vehicle with a slide door in which an electric wire guide apparatus is installed. It is a top view of the link member of Example 2. It is a top view of the link member of Example 3. It is a top view of the link member of Example 4. It is a top view of the link member of Example 5.

Preferred embodiments of the present invention are shown below.
(1) The reinforcing portion is provided on the opening edge portion of the hole portion on the plate surface opposite to the side where the shaft portion is inserted out of both plate surfaces of the first plate portion. It is good to have. According to this, since the section modulus of the opening edge part of a hole part increases, the rigidity of a 1st board part can be improved.

  (2) The reinforcing portion is a lid portion that closes the opening surface of the hole portion on the plate surface opposite to the side on which the shaft portion is inserted out of both plate surfaces of the first plate portion. It is good to be. According to this, it is possible to prevent foreign matter such as sand and dust from entering the hole of the first plate portion, and it is possible to avoid malfunction of the connecting portion due to the biting of the foreign matter.

<Example 1>
Hereinafter, Example 1 is demonstrated based on FIGS. As illustrated in FIG. 9, the wire guide device 10 according to the first embodiment is provided so as to be bridged between a body 91 (base body) and a slide door 92 (movable body) of a vehicle 90.

  As shown in FIG. 1, the wire guide device 10 includes a plurality of link members 20. Each link member 20 is connected in a line in a state where adjacent members can rotate with each other. One end of each link member 20 in the arrangement direction is connected to the vehicle body side bracket 82, and the other end of each link member 20 in the arrangement direction is connected to the door side bracket 83. A plurality of electric wires 50 (see FIG. 6) for supplying power to the electrical components mounted on the slide door 92 are inserted inside each link member 20, the door side bracket 83, and the vehicle body side bracket 82. Yes. In the following description, for convenience, one side in which the link members 20 are arranged (the length direction of the electric wires 50) on the side where the vehicle body side bracket 82 is located is referred to as “front side”, and the door side bracket 83 is used. The other side in the direction in which the link members 20 are arranged, which is the side on which is located, is referred to as “rear side”.

  The link member 20 is made of synthetic resin and has upper and lower plate portions 21 and 22 and left and right plate portions 23 and 24 as shown in FIG. In the link member 20, the upper and lower plate portions 21, 22 and the left and right plate portions 23, 24 are connected by square portions, and form a rectangular tube as a whole. An inner space defined by the plate portions 21 to 24 is configured as an electric wire insertion space 25.

  The upper and lower plate portions 21, 22 are paired up and down across the electric wire insertion space 25 and are disposed substantially along the left-right direction. As shown in FIGS. 1 and 2, the upper and lower plate portions 21 and 22 are positioned between the front portion 26 located on the front side, the rear portion 27 located on the rear side, and the front portion 26 and the rear portion 27. And a stepped portion 28. The front part 26 and the rear part 27 have a flat plate shape substantially along the front-rear direction. The rear portion 27 is disposed so as to fall inward one step from the front portion 26 via the step portion 28.

  As shown in FIGS. 6 and 7, the front portion 26 includes a pair of upper and lower holes 29 that are opened circularly on the inner surface, and an opening on the outer side of each hole 29 (the side opposite to the side facing the wire insertion space 25). And a lid portion 31 as a reinforcing portion for closing the surface. Each hole 29 is recessed with a depth substantially the same as the plate thickness of the front portion 26 excluding the lid portion 31. The cross section obtained by cutting each hole 29 in the depth direction has an angular concave shape.

  Each lid portion 31 includes a reinforcing main body portion 32 that bulges in a curved shape while being built up on an opening edge portion of each hole portion 29 on the outer surface of the front end portion 26, and closes each hole portion 29 continuously to the reinforcing main body portion 32. And a flat lid main body portion 33. The plate thickness of the lid body portion 33 is substantially the same as the plate thickness of the front portion 26 excluding the lid portion 31.

  The rear portion 27 has a pair of upper and lower shaft portions 34 on the outer surface. As shown in FIG. 2, each shaft portion 34 is configured to protrude in a columnar shape on the outer surface of the rear portion 27. The shaft portion 34 has a projecting dimension that is slightly smaller than the depth of the hole 29, and an outer diameter that is slightly smaller than the inner diameter of the hole 29. The protruding end surface of the shaft portion 34 has a flat shape.

  As shown in FIG. 5 to FIG. 7, among the link members 20 in the connected state, the link member positioned relatively on the front side among the link members 20 </ b> A and 20 </ b> B adjacent in the front-rear direction (alignment direction) When the member 20A is a rear link member 20B and the link member positioned relatively rearward is the rear link member 20B, the front portion 26 of the rear link member 20B and the rear portion 27 of the front link member 20A are in the vertical direction (thickness direction). ) Are arranged as a first plate portion 26B and a second plate portion 27A, respectively. The first plate portion 26B and the second plate portion 27A have substantially the same plate thickness as the vertical dimension (height) of the step portion 28.

  In a state where the first plate portion 26B and the second plate portion 27A overlap each other, each shaft portion 34 of the second plate portion 27A fits into each hole portion 29 of the first plate portion 26B from the inside. The protruding end surface of each shaft portion 34 is disposed so as to face the lid main body portion 33 of each lid portion 31 so as to be in contact with each other. As a result, the rear link member 20B can be rotated by a predetermined angle from a state in which the rear link member 20A is linearly arranged with the shaft portions 34 of the second plate portion 27A as the center. In this way, the rear link member 20B and the forward link member 20A are configured by the first plate portion 26B, the hole 29 of the first plate portion 26B, the second plate portion 27A, and the shaft portion 34 of the second plate portion 27A. It becomes a state which can mutually be rotated through the connection part 35 made.

  The left and right plate portions 23 and 24 are paired on the left and right sides with the electric wire insertion space 25 therebetween, and are arranged substantially along the vertical direction. The left and right plate portions 23 and 24 are provided on a rotation inner plate portion 23 provided on a surface facing the inside of the rotation and a rotation provided on a surface facing the outer side of the rotation when each link member 20 is rotated. It consists of the outer side plate part 24 (refer FIG. 1). The rotating inner plate portion 23 and the rotating outer plate portion 24 both stand substantially vertically, and the upper and lower ends are connected to the upper and lower plate portions 21 and 22.

  When the front link member 20A and the rear link member 20B are in a straight line state, between the rear end of the rotation inner plate portion 23 of the front link member 20A and the front end of the rotation inner plate portion 23 of the rear link member 20B. On the other hand, as shown in FIG. 8, the rear end of the rotating outer plate portion 24 of the front link member 20A and the front end of the rotating outer plate portion 24 of the rear link member 20B are mutually connected, as shown in FIG. It will be in the state contact | abutted along the up-down direction. When both the rotating outer plate portions 24 come into contact with each other, the gap between the both rotating outer plate portions 24 is closed, and the front link member 20A and the rear link member 20B rotate in the direction opposite to the predetermined rotation direction. To be regulated.

  When the sliding door 92 slides with respect to the body 91 and the front link member 20A and the rear link member 20B rotate at a predetermined angle around the shaft portion 34 following the movement, the outer side of the front link member 20A rotates. A gap is formed between the rear end of the plate portion 24 and the front end of the rotating outer plate portion 24 of the rear link member 20B (see FIG. 1), while the rotating inner plate portion of the front link member 20A. The rear end of 23 and the front end of the rotation inner plate portion 23 of the rear link member 20B are in contact with each other, and further rotation is restricted.

  By the way, while the front link member 20A and the rear link member 20B rotate, the shaft portion 34 of the second plate portion 27A slides on the hole surface of the hole portion 29 of the first plate portion 26B. When the front link member 20A and the rear link member 20B rotate at a predetermined angle and a force in the rotation direction acts, the shaft portion 34 strongly presses the hole surface of the hole portion 29, and the hole in the first plate portion 26B. Stress concentrates on the opening edge of the portion 29. If the hole 29 cannot retain its opening shape (circular shape, specifically, a perfect circular shape) due to stress concentration, the first plate portion 26B is deformed, and the front link member 20A and the rear link member 20B are deformed. The rotation angle between the rotation inner plate portion 23 and the rotation inner plate portion 23 cannot be restricted.

  However, in the case of the first embodiment, the reinforcing main body portion 32 of the lid portion 31 is provided on the opening edge portion of the hole portion 29 on the outer surface of the first plate portion 26 </ b> B, and further connected to the reinforcing main body portion 32. Since the lid body 33 is provided, the rigidity of the hole 29 can be increased. As a result, the opening shape of the hole portion 29 can be satisfactorily maintained, and deformation of the first plate portion 26B can be avoided. Moreover, the function which controls the rotation angle between 20 A of front link members and the back link member 20B can be exhibited appropriately. In addition, since it is not necessary to configure the link member 20 with a highly rigid and expensive material, the range of material selection can be expanded.

  Further, the shaft portion 34 of the second plate portion 27A is covered with the lid portion 31 while being inserted into the hole portion 29 of the first plate portion 26B, and is not exposed to the outer surface side of the first plate portion 26B. . For this reason, it is possible to prevent foreign matter such as dust from being caught between the shaft portion 34 and the hole surface of the hole portion 29, and the shaft portion 34 can slide smoothly in the hole portion 29. . Furthermore, it becomes possible to omit exterior protective materials such as rubber boots that surround the outer periphery of each link member 20.

<Example 2>
FIG. 10 is a plan view of the link member 20E according to the second embodiment. The second embodiment is different from the first embodiment in the structure of the reinforcing portion 31E. Reinforcing part 31E protrudes in a cylindrical shape and is built up on the opening edge of hole 29 on the outer surface of distal part 26 of link member 20E. Specifically, the reinforcing portion 31E has an inner peripheral surface that is substantially flush with the hole surface of the hole portion 29 in the vertical direction, has a constant thickness in the circumferential direction, and has a flat protruding end surface. Is arranged. Also in the second embodiment, similarly to the first embodiment, the section modulus of the opening edge portion of the hole 29 is effectively improved by the reinforcing portion 31E, and the opening shape of the hole 29 can be maintained.

<Example 3>
FIG. 11 is a plan view of the link member 20F according to the third embodiment. The third embodiment is different from the first embodiment in the structure of the reinforcing portion 31F. The reinforcing portion 31F includes a portion that is built up in a half-circumferential region of the opening edge portion of the hole 29 on the outer surface of the front portion 26 (first plate portion 26B) of the link member 20F, and a hole portion that continues to the built-up portion. 29 and a lid portion that closes a semicircular region on the outer opening surface. In short, the reinforcing portion 31F has a form in which a semicircular region of the lid portion 31 of the first embodiment is cut away. The hole 29 is configured such that the semicircular region on the outer side of the rotation is closed by the reinforcing portion 31F, while the semicircular region on the inner side of the rotation is opened. In the case of the third embodiment, the reinforcing portion 31F can efficiently reinforce the semicircular region on the outer side of the rotation, which is particularly likely to concentrate stress, at the opening edge of the hole portion 29 of the front portion 26 within a necessary range.

<Example 4>
FIG. 12 is a plan view of the link member 20G of the fourth embodiment. The fourth embodiment is different from the first embodiment in the structure of the reinforcing portion 31G. The reinforcing portion 31G is connected to the front and rear sides of the opening edge portion of the hole portion 29 on the outer surface of the front portion 26 (first plate portion 26B) of the link member 20G, and is bridged so as to cross the hole portion 29. It is in the form of In the case of the fourth embodiment, the rigidity of the front portion 26 can be increased by the beam effect of the reinforcing portion 31G.

<Example 5>
FIG. 13 is a plan view of the link member 20H of the fifth embodiment. The fifth embodiment is different from the first embodiment in the structure of the reinforcing portion 31H. The reinforcing portion 31 </ b> H is provided so as to cover a portion of the opening surface outside the hole portion 29 excluding the slit portion 36 along the front-rear direction passing through the center of the hole portion 29. Specifically, the reinforcing portion 31H is connected to the cylindrical portion 37 protruding from the opening edge portion of the hole portion 29 on the outer surface of the front portion 26 (first plate portion 26B) of the link member 20H, and both the inner and outer sides of the cylindrical portion 37. , And a pair of partial covering portions 38 covering both the inner and outer sides across the slit portion 36 on the opening surface outside the hole portion 29. In the case of the fifth embodiment, the opening edge portion of the hole 29 can be reinforced by the reinforcing portion 31H, and the state of the shaft portion 34 inserted into the hole 29 can be visually recognized through the slit portion 36.

<Other embodiments>
Other embodiments will be briefly described below.
(1) The rotating inner plate portion can be omitted from the left and right side plates.
(2) Contrary to Examples 1-5, a 1st board part may be provided in a front link member, and a 2nd board part may be provided in a back link member.
(3) The electric wire guide device only needs to include a plurality of link members in a row shape that protects the electric wire spanned between the base body and the movable body movable with respect to the base body. It is not limited to the case where it is provided so as to be bridged between the body of the vehicle and the sliding door as in -5. For example, the electric wire guide device can also be applied to a case where power is supplied to an electrical component installed in a door or window of a building.
(4) According to the present invention, it is possible to omit an exterior protective material such as a rubber boot, but it is optional whether or not this is omitted. Included in the range.

DESCRIPTION OF SYMBOLS 10 ... Electric wire guide apparatus 20, 20E, 20F, 20G, 20H ... Link member 20A ... Forward link member 20B ... Back link member 26B ... 1st board part 27A ... 2nd board part 29 ... Hole part 31 ... Cover part (reinforcement part) )
31E, 31F, 31G, 31H ... Reinforcement part 34 ... Shaft part 35 ... Connection part 91 ... Body (base body)
92 ... Sliding door (movable body)

Claims (3)

Arranged between the base body and the movable body movable with respect to the base body, wires are inserted inside, and adjacent ones in the alignment direction are connected to each other via a connecting portion so as to be rotatable with respect to each other. Provided with a plurality of link members,
The connecting portion is
A first plate portion and a second plate portion in which each of the adjacent link members is disposed so as to overlap a plate surface;
A hole provided to open in the first plate part;
A shaft portion that protrudes from the second plate portion, is inserted into the hole portion, and serves as a rotation shaft of the link member;
An electric wire guide device comprising: a reinforcing portion that is provided on the first plate portion and maintains an opening shape of the hole portion.   The reinforcing portion is provided on the opening edge portion of the hole portion on the plate surface opposite to the side where the shaft portion is inserted, out of both plate surfaces of the first plate portion. Item 2. The wire guide device according to Item 1.   The said reinforcement part is a cover part which obstruct | occludes the opening surface of the said hole in the board surface on the opposite side to the side in which the said axial part is inserted among the both plate | board surfaces of a said 1st board part. The electric wire guide apparatus of Claim 1 or Claim 2.

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