JP2010011648A - Power feeder device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power feeder device capable of preventing constituting components from being damaged due to pressed with a foot of an occupant without complicating a structure and increasing manufacturing cost. <P>SOLUTION: There is provided the power feeder device 1 having a structure in which in a sliding structure or fixed structure, a guiding portion 4 is obliquely disposed, a harness supporting member 3 is obliquely disposed so as to be freely moved up and down along the guiding portion 4, the harness supporting member 3 is urged obliquely upward with a spring member, and a wire harness 5 is bent and cabled toward the fixed structure or sliding structure along the harness supporting member. The oblique inclined angle θ may be 30-90°. The guiding portion 4 and the harness supporting member 3 are disposed obliquely in the case 2. The guiding portion 4 and the harness supporting member 3 are obliquely disposed integrally with the case 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power feeding device that is mounted on a sliding door of an automobile and that does not cause damage or the like even when a wire harness is stepped on by a passenger or the like with a vehicle body or the like.

  2A and 2B show one mode of a conventional power feeding device (see Patent Document 1).

  The power supply device 22 includes a case 23 that is horizontally mounted on a slide door 21 of an automobile, a semicircular harness support member 24 that is slidable in a horizontal direction within the case, and a harness support member 24 that has a harness extra length. One is fixed to the upper part of the front end of the spring member 25 that urges in the absorption direction (rear) and the case 23 (the fixing portion is denoted by reference numeral 26), and is bent into a U shape along the harness support member 24. And a wire harness 28 led out from the horizontally long lower opening to the harness fixing portion 27 on the vehicle body side.

  The harness support member 24 is slidably engaged with a horizontally long guide rail (not shown) of the case 23, and the tip (front end) of the spring member 25 is fixed to the upper portion of the harness support member 24. The spring member 25 in this example is a thin strip metal wound in a spiral shape, elastically restored in the rewinding direction, and the harness support member 24 is fully closed as shown in FIG. It moves to the spring member 25 side (rear end side).

  As the slide door 21 is slid rearward from the state of FIG. 2 and opened, the harness support member 24 is attached to the spring member 25 while the wire harness 28 is pulled forward with the harness fixing portion 27 on the vehicle body side as a fulcrum. It moves relatively to the front of the case 23 against the force, absorbs the extra harness length when the sliding door is half open, and is positioned on the front end side of the case 23 when the sliding door 21 of FIG.

  FIG. 3 shows another embodiment 31 of a conventional power feeding device, in which a guide rail 33 is horizontally provided in a synthetic resin case 32, and a synthetic resin harness support member 34 slides on the guide rail 33. The harness supporting member 34 is urged in the harness surplus length absorption direction (forward) by a horizontal compression coil spring (not shown). The harness support member 34 has a semicircular front end portion 35 a that runs along the wire harness 35.

In the fully open state of the sliding door of FIG. 3, the wire harness 35 is pulled forward with the harness fixing portion 36 on the vehicle body side as a fulcrum, and the harness support member 34 resists the bias of the spring in the longitudinal direction of the guide rail 33. In the half open state (not shown) of the sliding door, the harness support member 34 is positioned on the front end side of the guide rail 33 to absorb the harness surplus length, and in the fully closed state of the sliding door, the harness fixing portion The wire harness 34 is pulled rearward with 36 as a fulcrum, and the harness support member 34 is positioned on the rear end side of the guide rail 33 against the spring bias.
JP 2007-326512 A (FIGS. 1, 12 to 14)

  However, in each of the conventional power supply devices described above, when the wire harness is exposed between the slide door and the vehicle body when the slide door is opened, there is a concern that the occupant steps on the wire harness with his / her foot when ascending / descending, In this case, there is a concern that an excessive downward load is applied to the harness support member, the harness support member or the guide rail is damaged, or the wire harness is damaged. As a countermeasure, when bearings or rollers are used to reduce the sliding resistance between the harness support member and the guide rail, there arises a problem that the structure is complicated and the cost is increased.

  The present invention has been made in view of the above points, and an object thereof is to provide a power feeding device capable of preventing damage to each component due to the stepping of a wire harness by an occupant without complicating the structure and increasing the cost. And

  In order to achieve the above object, according to a first aspect of the present invention, in the power supply apparatus according to the first aspect of the present invention, the guide portion is disposed obliquely in the slide structure or the fixed structure, and the harness support member can be moved up and down obliquely along the guide portion. The harness support member is biased upward by a spring member and the wire harness is bent and routed toward the fixed structure or the slide structure along the harness support member.

  With the above configuration, for example, when the guide portion and the harness support member are disposed obliquely upward on the slide structure, the wire harness is routed downward along the harness support member toward the fixed structure. When an excessive downward force such as stepping is applied to the wire harness between the fixed structure and the slide structure in the open state, the harness support member is inclined downward along the guide portion against the spring bias. By descending, an excessive downward force is absorbed, and damage to components such as the harness support member is prevented. The guide part and the harness support member may be disposed horizontally on the fixed structure. In this case, the guide part and the harness support member are disposed obliquely with respect to the opening / closing direction of the slide structure.

  A power supply apparatus according to a second aspect is the power supply apparatus according to the first aspect, wherein the oblique inclination angle is 30 ° to 90 °.

  With the above configuration, when the inclination angle is 90 °, for example, the guide portion and the harness support member are vertically arranged on the slide structure, and the friction resistance between the guide portion and the harness support member when the wire harness is stepped is reduced. Thus, the load on each component such as the guide portion is further reduced. When the inclination angle (θ) is 30 °, the force Tsinθ in the direction along the guide portion acting on the harness support member becomes 0.5 with respect to the stepping force T (T = 1) of the wire harness, and the harness The support member slides down along the guide portion without being damaged. If the inclination angle is 45 °, the harness support member slides down more smoothly and reliably. The inclination angle of 30 ° to 90 ° is a range that does not break reliably.

  A power supply device according to a third aspect is the power supply device according to the first or second aspect, wherein the guide portion and the harness support member are arranged obliquely in the case.

  With the above configuration, the case is fixed and attached to the slide structure or the like at the position of the normal power feeding device. The guide part and the harness support member are protected from interference with the outside in the case.

  According to a fourth aspect of the present invention, in the power feeding device according to the first or second aspect, the guide portion or the harness supporting member is disposed obliquely integrally with the case.

  With the above configuration, the power feeding device is assembled by changing only the assembly position of the case to the slide structure or the like using the existing power feeding device.

  According to the first aspect of the invention, by arranging the guide portion and the harness support member obliquely on the slide structure or the fixed structure, the stepping force of the wire harness is absorbed, and the guide portion, the harness support member, and the wire are absorbed. Damage to the harness and the like is prevented, and the reliability of constant power supply to the slide structure is improved. In addition, since it is not necessary to reduce the sliding resistance between the harness support member and the guide portion with a bearing or roller, the structure is simple and the cost is low.

  According to the second aspect of the present invention, the frictional resistance between the guide portion and the harness support member is reduced to a minimum at an inclination angle of 90 °, the effect of the invention of the first aspect is promoted, and the harness at an inclination angle of 30 °. The support member is lowered along the guide portion without breakage or the like, and the effect of the invention of claim 1 is reliably exhibited.

  According to the third aspect of the present invention, the case can be performed at the same position as the assembly of the existing power supply device to the slide structure, and there is no fear of interference between the case and the parts in the slide structure.

  According to the fourth aspect of the present invention, the power supply device having the existing configuration can be used as it is and can be mounted on the slide structure or the like, which is economical.

  FIG. 1 shows an embodiment of a power feeding device according to the present invention.

  In this power supply device 1, a harness support member 3 is inclined with a guide rail (guide portion) 4 in the case 2 in a case 2 made of synthetic resin, and receives a downward force T accompanying the stepping of the wire harness 5. The harness support member 3 descends obliquely downward along the guide rail 4 to absorb the stepping force T.

  The harness support member 3 shown by a solid line in FIG. 1 is in a state when the sliding door of the automobile is fully opened, and the harness support member 3 shown by a chain line is in a state when receiving a stepping force T (or a state when the slide door is fully closed). is there.

  The case 2 has a base portion (substituted by reference numeral 2) and a cover portion (not shown) and is configured to be divided and opened, and has a harness fixing portion 2a on the rear end side and a horizontally long lower opening 2b. Placed horizontally. The harness support member 3 has a semicircular curved surface 3a that supports the wire harness 5 in a substantially inverted V shape on the front end side, and a slide portion (not shown) that engages with the guide rail 4 on the back surface side. . The harness support member 3 is a spring member (not shown) such as a compression coil spring, a tension coil spring, a corrugated leaf spring, or a thin metal strip helically wound constant load spring, which is obliquely upward along the guide rail 4. Is being energized. The spring member is also disposed obliquely along the guide rail 4.

  A circular rotatable pulley (not shown) is used as the harness support member 3, and the central axis of the pulley is slidably engaged with a slit or the like as the guide rail 4, or suspended on a slide portion (not shown). It is also possible to slidably engage the slide portion with the guide rail 4.

  The guide rail (guide part) 4 may be formed integrally with the case 2 as a groove part or a slit part, or a separate rail member (guide part) may be fixed to the inner surface of the case 2. The wire harness 5 is configured by covering a plurality of circular insulation-coated electric wires (not shown) with a protective tube (represented by reference numeral 5) such as a flexible mesh tube or a bendable corrugated tube. 5a is fixed to the harness fixing portion 2a on the rear end side of the case 2 and is led out from the case 2 and connected to an auxiliary machine on the slide door side. The other 5b of the wire harness 5 is connected to the vehicle body side from the lower opening 2b. A harness fixing member (not shown) is routed.

  The guide rail 4 in this example is linearly inclined, but may be inclined in a curved shape (the bending direction may be either up or down). The inclination angle θ of the guide rail 4 with respect to the imaginary horizontal line G, that is, the inclination angle of the harness support member 3 is the stepping force T of the wire harness 5 in a state where the harness support member 3 is urged obliquely upward by the urging force of the spring member. On the other hand, any angle may be used as long as it generates a component force Tsinθ that pushes the harness support member 3 obliquely downward.

  When the frictional resistance between the harness support member 3 and the guide rail 4 is extremely small (when a pulley or the like is used as the harness support member 3), even if the inclination angle of the guide rail 4 is 1 °, it depends on the component force Tsinθ. The harness support member 3 may move obliquely downward. Also in the harness support member 3 in the example of FIG. 1, if the inclination angle of the guide rail 4 is about 10 °, the harness support member 3 can be moved obliquely downward by the component force Tsinθ.

  Further, the maximum inclination angle of the guide rail 4 can be set to 90 ° (vertical). In this case, the harness support member 3 moves up and down along the vertical guide rail 4 as the slide door opens and closes, and the wire harness 5 opens and closes the slide door in the opening and closing direction (with the curved surface 3a on the upper end side of the harness support member 3 as a fulcrum). It swings back and forth.

  In the example of FIG. 1, the inclination angle θ of the guide rail 4 is about 35 °, and it is generally preferably 45 ° or less in consideration of the balance between the height direction and the front-rear direction dimension of the case 2. If it is 45 ° or more, the case 2 becomes vertically long, and there is a concern that it may interfere with other parts in the sliding door depending on the vehicle type. When the inclination angle θ is 30 ° and the stepping force T is 1, the force Tsinθ in the sliding direction of the harness support member 3 is half of 0.5, and there is no fear of the guide rail 4 or the support member 3 being damaged.

  When the guide rail is fixed to the 4 slide door panel without using the case 2 and the spring member is elastically placed between the slide door panel and the harness support member 3, the power feeding device (1) is reduced in space, weight, Cost reduction. Even if the inclination angle θ is 45 ° or less, the case 2 can be eliminated.

  In the example of FIG. 1, the case 2 is arranged horizontally and the guide rail 4 is inclined in the case. However, in FIG. 1, the upper and lower sides 2c, 2b of the case 2 and the guide rail 4 are arranged in parallel (existing) It is also possible to mount the case itself on a sliding door with the case itself inclined obliquely upward.

  In the fully open state of the sliding door of FIG. 1, the harness support member 3 is urged diagonally upward by a spring member and is positioned in the middle portion in the longitudinal direction of the guide rail 4, and the wire harness 5 extends from the lower opening 2 b of the case 2 to the vehicle. It is routed substantially horizontally (between the sliding door and the vehicle body (crossover portion)) over a harness fixing member (not shown) on the body side.

  In this state (the same applies to the half-opened state of the sliding door), when the occupant steps on the wire harness 5, as described above, the diagonally downward downward component force Tsinθ and the diagonally forward downward component of the stepping force T are as described above. The force Tcosθ acts, and the harness supporting member 3 is lowered diagonally downward along the guide rail 4 together with the wire harness 5 against the biasing force of the spring member by the diagonally downward downward component force Tsinθ. This prevents the harness support member 3 and the guide rail 4 from being damaged or deformed, and prevents the wire harness 5 from being damaged (such as a crack in the protective tube or an extension or breakage of the electric wire).

  When the sliding door of FIG. 1 is fully opened, the wire harness 5 is slanted diagonally forward and downward from the harness support member 3 before being stepped on and is routed to the harness fixing member on the vehicle body side. While the sliding door is slid forward and closed (when the sliding door is half-opened), the wire harness 5 tends to hang down at the crossover, but the harness support member 3 is biased obliquely upward by the biasing force of the spring member. By lifting the wire harness 5 and pulling it into the case, the extra harness length is absorbed and drooping is prevented. The wire harness 5 is positioned substantially vertically from the harness support member 3 to the lower opening 2 b of the case 2.

  When the sliding door is fully closed, the wire harness 5 is pulled obliquely rearward with the harness fixing member on the vehicle body side as a fulcrum, and the harness support member 3 is pushed down by the wire harness 5 against the spring bias and the guide rail 4 Located on the lower end. As the slide door is opened and closed, the wire harness 5 swings in the front-rear direction between the harness support member 3 and the harness fixing member on the vehicle body side.

  In the above embodiment, the case 2 is formed in a substantially rectangular shape. However, the shape of the case 2 is not limited to this, and may be, for example, a triangular shape or a semicircular shape. Further, a leaf spring (not shown) is used as a spring member to bias the harness support member 3 obliquely upward, or an extension portion of a constant load spring (not shown) in which a belt-like metal spring is wound spirally is arranged vertically. And it arrange | positions which can also be bent via a small roller etc. and can be connected with the harness support member 3.

  Further, in the above embodiment, the case 2 is arranged vertically (vertically) on the sliding door. For example, the case 2 is arranged horizontally (sideways) not near the sliding door but near the entrance / exit step of the vehicle body. It is also possible to do. In this case, the long side portions 2b and 2c of the case 2 are disposed in parallel with the vehicle body, and the guide rail 4 and the harness support member 3 are disposed obliquely with respect to the vehicle front-rear direction.

  Moreover, in the said embodiment, although demonstrated as what mounts the electric power feeder 1 in the slide door of a motor vehicle, the said slide door of vehicles other than a motor vehicle, a test device, etc. (it is named a fixed structure) is mentioned above. It is also possible to apply a power feeding device. The above-described configuration of the present invention is also effective as a harness wiring structure in addition to the power feeding device.

It is a front view which shows one Embodiment of the electric power feeder which concerns on this invention. FIG. 2A is a perspective view of a sliding door in a fully opened state, and FIG. 2B is a perspective view of a sliding door in a fully closed state, showing an embodiment of a conventional power feeding device. It is a front view which shows the other form of the conventional electric power feeder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric power feeder 2 Case 3 Harness support member 4 Guide rail (guide part)
5 Wire harness θ Inclination angle

Claims (4)

  In the slide structure or the fixed structure, the guide portion is disposed obliquely, the harness support member is disposed obliquely up and down along the guide portion, and the harness support member is urged obliquely upward by the spring member, A power supply device, wherein a wire harness is bent and routed toward a fixed structure or a slide structure along the harness support member.   The power feeding apparatus according to claim 1, wherein the oblique inclination angle is 30 ° to 90 °.   The power feeding device according to claim 1, wherein the guide portion and the harness support member are disposed obliquely in the case.   The power supply device according to claim 1, wherein the guide portion and the harness support member are disposed obliquely integrally with the case.

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