JP6065784B2 - Clamping device - Google Patents

Description

  The present invention relates to a clamp device used in a vehicle.

  Conventionally, for example, as shown in Patent Document 1 below, a harness routing structure connected to a wheel speed sensor that detects a wheel speed of a vehicle equipped with a leaf spring type suspension has been known. In this conventional harness routing structure for wheel speed sensors, a hanger bracket that supports a leaf spring with respect to a side member (vehicle body frame) is provided with a rear wall, and the harness is held by the rear wall. Moreover, in this conventional harness routing structure, a clamp for directing the harness toward the rear axle housing is attached to the outer surface of the hanger bracket. Further, in this conventional harness routing structure, a clamp is separately arranged at a portion of the leaf spring between the hanger bracket and the rear axle housing, and the harness is held at the upper end of the clamp. ing.

  According to the conventional harness routing structure configured as described above, a necessary and sufficient space can be ensured between the hanger bracket and the fuel tank disposed inside thereof. Further, according to the conventional harness routing structure, interference between the fuel tank and the clamp, and the harness and the suspension component can be prevented.

JP 2011-230580 A

  By the way, in the harness wiring structure of the conventional wheel speed sensor shown by the said patent document 1, the clamp apparatus which supports a harness and a harness is exposed to the exterior of the vehicle on the floor lower surface side of the vehicle. In this case, for example, when a vehicle side member such as a body panel or a fuel tank is provided so as to face the clamp device, mud, snow, etc. adhere to the clamp and the vehicle side member as the vehicle travels. There is a possibility that the wires such as the harness held by the clamp device and the deposits such as mud and snow interfere with each other. And when interference with such a deposit arises, there exists a possibility of giving unnecessary load (tension) to an electric wire, such as a harness, or damaging it.

  The present invention has been made to cope with the above-described problems, and one of its purposes is a clamp that appropriately protects and holds an electric wire exposed to the outside of a vehicle from deposits accumulated during traveling. To provide an apparatus.

In order to achieve the above object, a clamping device according to the present invention is arranged to face a body member constituting a vehicle body, and supports a wire that is wired on the floor lower surface side of the vehicle and exposed to the outside of the vehicle. A plate-like fastening portion extending toward the vehicle lower side that is fastened to a vehicle-side member that constitutes the vehicle, and the electric wires separated from a fastening surface in the fastening portion in a direction perpendicular to the fastening surface. A holding part that holds the electric wire with a predetermined interval in the axial direction of the electric wire, and is connected to a lower end side of the fastening part and extends in a direction perpendicular to the fastening surface. The first surface is connected to a side of the first surface away from the fastening surface via a bent portion formed along the axial direction of the electric wire and extends downward from the vehicle. It is connected to the holding portion having a predetermined distance on the side And a second surface formed in a substantially L-shaped cross section has, among the electric wires, and a protective portion covering the non-retaining portion which is not retained between the retention portion and the holding portion held by the holding portion Configured as follows. Here, the said protection part can protect the said electric wire from the deposit which adhered to the peripheral member arrange | positioned in the vicinity of the said electric wire which the said holding | maintenance part hold | maintains, and was deposited. Further, the bent portion of the protective portion can be formed so that the cross-sectional shape thereof is a curve.

  According to these, a clamp apparatus can be comprised from a fastening part, a holding | maintenance part, and a protection part. Thereby, the fastening portion is fastened to the vehicle side member (for example, a rigid rear suspension device that suspends the wheel from the vehicle body at the rear portion of the vehicle), and the clamp device is integrally assembled to the vehicle side member. Then, a holding | maintenance part can hold | maintain an electric wire (specifically wire harness) firmly, for example by crimping. And in the clamp apparatus assembled | attached integrally to the vehicle side member, the protection part is the electric wire currently hold | maintained by the holding | maintenance part, in other words, the electric wire wired on the floor lower surface side of a vehicle and exposed to the exterior of a vehicle. By covering, for example, it is possible to protect against deposits that adhere to and deposit on peripheral members (specifically, body panels, fuel tanks, etc.) that form the vicinity of the wired wires.

  Thereby, under the situation where mud, snow or the like adheres to the peripheral members and accumulates as the vehicle travels, the protective part of the clamp device preferentially interferes (contacts) with these deposits, It can suppress that the electric wire currently hold | maintained by the holding | maintenance part contacts a deposit. Therefore, it is possible to reliably prevent the deposits from interfering with the electric wires wired on the lower side of the floor of the vehicle and to apply unnecessary loads. Can be prevented. For this reason, when the clamp device is used, it is possible to route the electric wire by the shortest path by eliminating the influence of the deposits. For example, the number of clamp devices installed, that is, the number of components necessary for the wiring of the electric wire It is also possible to achieve a cost reduction by greatly reducing the cost.

Further, the protective part covers the holding part held by the holding part and the non-holding part between the holding parts, so that the electric wire of the part (supported part) held by the clamp device is removed from deposits such as mud and snow. Can be properly protected. Accordingly, it is possible to more reliably prevent the deposits from interfering with the electric wires wired on the lower side of the floor of the vehicle and thereby applying an unnecessary load. It can be surely prevented.

Moreover, since the cross-sectional shape of the protective part is substantially L-shaped, the holding part can hold the electric wire so as to be positioned inside the substantially L-shaped protective part. Accordingly, when deposits are present on the peripheral member, the first surface that connects the surface that forms a substantially L shape, that is, the fastening portion and the bent portion, and the second portion that connects the holding portion and the bent portion. The surface can effectively prevent the deposit from entering the inside of the substantially L-shaped protective part. For this reason, the electric wire of the part (supporting part) which a clamp apparatus hold | maintains can be protected more reliably from deposits, such as mud and snow. Therefore, it is possible to reliably prevent deposits from interfering with the electric wires wired on the lower surface side of the vehicle floor, and more reliably prevent unnecessary loads from being applied to the electric wires. As a result, it is possible to more reliably prevent the breakage of the electric wire due to damage or the like.

  Further, in the protective part, the first surface connecting the fastening part and the bent part is preferentially interfered with the deposit by the movement of the vehicle side member to which the clamp device is fastened as the vehicle travels. Things can be removed. Then, in a situation where mud, snow, etc. may accumulate on the first surface connecting the fastening portion and the bent portion, the bent portion has a curved cross section (so-called predetermined radius). By forming it so that it has an R shape, accumulated mud, snow, etc. can be easily flowed down, and accumulation can be effectively prevented.

Further, by forming a protective portion in a substantially L shape, in particular, even if the deposits deposited adhering to the peripheral member with respect to the wire made of a non-holding portion interferes, non-retained portion of the wire The load at can be greatly reduced. Specifically, normally, an end (edge) of the second surface that connects the holding portion and the bent portion is caused by the movement of the vehicle-side member to which the clamp device is fastened as the vehicle travels. It is possible to scrape and remove the deposits that try to penetrate inside. However, depending on the state (size) of the deposit on the vehicle body side member and the movement of the vehicle side member to which the clamping device is fastened as the vehicle travels, a part of the deposit may not be scraped off by the edge. And the deposit may interfere with the non-holding portion of the electric wire.

  In this way, in the situation where the deposit deposited on the peripheral member interferes with the electric wire of the non-holding portion, the electric wire of the non-holding portion is positively attached to the back surface of the first surface that connects the fastening portion and the bent portion. By supporting (stopping) the contact, it is possible to reliably prevent the tension (load) resulting from the interference with the deposit from being applied to the electric wire. Therefore, even when a tension is easily applied to an electric wire to be wired as in the case of a rigid suspension device, it is possible to more reliably prevent the electric wire from being broken due to damage or the like.

It is a schematic structure figure showing roughly the rear suspension device with which the clamp device concerning the embodiment of the present invention was assembled. It is a schematic enlarged view for demonstrating the fastening state of the clamp apparatus with respect to the rear suspension apparatus of FIG. It is a schematic block diagram which shows the structure of the clamp apparatus of FIG.1 and FIG.2. It is sectional drawing which shows the AA cross section and BB cross section of FIG. It is an expanded sectional view which shows the R shape of the bending part of FIG.3 and FIG.4. It is a schematic sectional view showing a positional relationship between a clamp device that moves up and down integrally with the rear suspension device and deposits deposited on peripheral members. It is a figure for demonstrating protection of the wire harness by a protection part when a clamp apparatus moves relatively upwards with respect to a deposit. (A) is a figure for demonstrating the case where a deposit apparatus is scraped off by the edge of a protection part, and protects a wire harness, when a clamp apparatus moves below with respect to a deposit, (b). FIG. 5 is a view for explaining a case where a protective part receives and protects a wire harness that interferes with deposits.

  Hereinafter, a clamp device according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 schematically shows a rigid rear suspension apparatus S as a vehicle-side member to which the clamp apparatus 10 is fastened and assembled according to the present embodiment. The rear suspension device S is connected to the vehicle body via a pair of absorbers provided in the left-right direction of the vehicle, and suspends the left and right rear wheels on the vehicle body. The detailed configuration and operation of the rigid-type rear suspension device S are not directly related to the present invention, and thus the description thereof is omitted.

  As shown in FIG. 1, the rear suspension apparatus S is assembled with a wire harness W as an electric wire wired between the vehicle body side and the wheel side. For this reason, the wire harness W is wired on the floor lower surface side of the vehicle, and is exposed to the outside of the vehicle. The wire harness W to be wired is a clamp that is integrally fastened to the rear suspension device S by, for example, a bolt as shown in FIG. Supported by the device 10. Here, in the present embodiment, the clamping device 10 is integrally assembled with the rear suspension device S toward the rear in the longitudinal direction of the vehicle. In this assembled state, the clamp device 10 is shown in FIG. As shown by a two-dot chain line, it faces the body member Bo that forms the vehicle body as a peripheral member. Specific examples of the body member Bo include a body panel and a fuel tank.

  As shown in FIGS. 3 to 5, the clamping device 10 is formed to have a crank shape as a whole. Specifically, the clamp device 10 includes a plate-like fastening portion 11 fastened to the rear suspension device S as shown in FIG. The fastening portion 11 is formed with a through hole for inserting a bolt.

  Moreover, the clamp apparatus 10 is provided with the holding | maintenance part 12 spaced apart from the fastening surface 11a in the fastening part 11, and holding the wire harness W, as shown in FIG.3 and FIG.4. The holding | maintenance part 12 hold | maintains firmly by crimping the outer peripheral surface of the wire harness W, for example. And the holding | maintenance part 12 is provided so that it may have a predetermined space | interval in the axial direction (The direction which corresponds to the left-right direction of a vehicle in this embodiment) of the wire harness W, as shown in FIG. In the following description, a portion of the wired wire harness W held by the holding portion 12 is referred to as a holding portion and corresponds to a portion that is not held by the holding portion 12, in other words, between the holding portions 12. The part is referred to as a non-holding part.

  Further, the clamp device 10 is connected to the fastening portion 11 at one end side and connected to the holding portion 12 at the other end side, and is held by the holding portion 12, that is, the wire harness, that is, the holding portion and the non-holding portion. The protection part 13 which covers is provided. As shown in FIG. 3, the protection unit 13 is provided along the axial direction of the wire harness W (in the present embodiment, the direction that coincides with the left-right direction of the vehicle).

  And the protection part 13 has the 1st surface 13a connected to the fastening part 11, and the 2nd surface 13b connected to the holding | maintenance part 12, as shown in FIG.3 and FIG.4, The cross-sectional shape is substantially. The first surface 13a and the second surface 13b are connected by a bent portion 13c so as to be L-shaped. As shown in FIGS. 3 and 4, the bent portion 13 c is formed at least along the axial direction of the wire harness W held by the holding portion 12. And the bending part 13c is formed so that the cross-sectional shape may become a curve, ie, it may become R shape, as shown in FIG. As described above, the protection portion 13 is formed in an L shape from the first surface 13a, the second surface 13b, and the bent portion 13c, and as shown in FIGS. The holding portion and the non-holding portion of the wire harness W arranged on the back side (inside side) of the surface 13b and the bent portion 13c are covered.

  The clamp device 10 configured as described above is integrally fastened to the rear suspension device S by the fastening portion 11. Accordingly, as shown in FIG. 6, the clamp device 10 is displaced in the vertical direction of the vehicle in accordance with the movement of the rear suspension device S accompanying the road surface input via the left and right rear wheels, for example. For this reason, when mud, snow (ice) or the like wound up by traveling of the vehicle adheres to and accumulates on the body member Bo facing the clamp device 10, the clamp device 10 is displaced, so that it accumulates on the body member Bo. In some cases, the deposited deposit may interfere with the clamp device 10 or the wire harness W. When such interference with the deposit occurs, the protection unit 13 appropriately protects the wire harness W in the clamp device 10. Hereinafter, protection of the wire harness W by the protection unit 13 will be specifically described.

  First, as schematically shown in the BB cross section of FIG. 2 in FIG. 6, for example, the case where the rear suspension device S, that is, the clamp device 10 is displaced relative to the body member Bo upward will be described. . As described above, when the clamping device 10 is displaced upward in the vehicle relative to the body member Bo, more specifically, the deposit accumulated on the body member Bo, mainly the first surface 13a of the protection unit 13 and The bent portion 13c protects the wire harness W. That is, as shown in FIG. 7, when the clamp device 10 is displaced relatively upward in a situation where mud or snow has adhered to the body member Bo and the deposit has grown greatly, the deposit will be Interference with the first surface 13a and the bent portion 13c.

  In this case, the first surface 13 a of the protection unit 13 prevents the deposit from entering the inside of the protection unit 13. In addition, the bent portion 13c of the protective portion 13 is formed so that the cross-sectional shape thereof is an R shape, so that it does not cause a large resistance at the contact portion with the deposit, and the displacement of the clamp device 10 can be prevented. Displace downward while removing deposits. In other words, the bent portion 13c of the protection portion 13 can flow the deposit against the displacement of the clamp device 10 in a situation where the deposit interferes. Further, even if mud, snow, or the like is deposited on the first surface 13a, the bent portion 13c is formed in an R shape, so that the mud, snow, etc. that has started to accumulate can be quickly collected. It can be washed away.

  Thus, when the clamping device 10 is displaced relatively upward with respect to the deposit deposited on the body member Bo, the first surface 13a and the bent portion 13c of the protection portion 13 are connected to the wire harness W and the deposit. Interference can be prevented. Thereby, the wire harness W of the part (part to support) which the clamp apparatus 10 hold | maintains can be protected appropriately from a deposit. Accordingly, the deposit accumulated on the body member Bo interferes with the wire harness W wired on the lower surface side of the vehicle floor, and an unnecessary load (specifically, tension that damages or disconnects the wire harness W). Etc.) can be reliably prevented.

Next, as shown in FIG. 6, for example, the case where the rear suspension device S, that is, the clamp device 10 is displaced downward in the vehicle relative to the deposits deposited on the body member Bo will be described. Thus, when the clamp device 10 is displaced downward in the vehicle relative to the deposit, the second surface and the first surface of the protection portion 13 are not mainly held by the wire harness W, particularly the holding portion 12. Effectively protects non-retaining parts. Note that the holding portion of the wire harness W is protected by the second surface 13 b and the holding portion 12. That is, as shown in FIG. 8A, when the clamp device 10 is displaced relatively downward in a situation where mud or snow adheres to the body member Bo and the deposit grows greatly, the deposit is protected. Among the end portions of the second surface 13b of the portion 13, it interferes with an end portion (edge) to which the holding portion 12 is not connected.

  In this case, the edge of the second surface 13 b of the protection portion 13 scrapes off the deposit that protrudes toward the non-holding portion of the wire harness W, particularly with the relative downward displacement of the clamping device 10. Thereby, it is possible to prevent the deposit from entering the inner side of the protection portion 13 and to prevent the wire harness W from interfering with the deposit, and the portion (supporting portion) held by the clamp device 10 can be prevented. The wire harness W can be appropriately protected from deposits. Accordingly, the deposit accumulated on the body member Bo interferes with the wire harness W wired on the lower surface side of the vehicle floor, and an unnecessary load (specifically, tension that damages or disconnects the wire harness W). Etc.) can be reliably prevented.

  On the other hand, in the case where the clamp device 10 is displaced downward in the vehicle relative to the deposit, it is impossible to scrape the deposit by the second surface 13b of the protection unit 13 in a situation where the deposit has grown greatly. There is. In this case, in particular, in the non-holding portion of the wire harness W, there is a high possibility of interference with deposits that have entered the inside of the protection unit 13 with the relative downward displacement of the clamping device 10.

  However, when the wire harness W interferes with the deposit while the clamp device 10 is displaced relatively downward, in particular, as shown in FIG. It is displaced upward relative to the protection part 13 of the clamping device 10. Then, the non-holding portion of the wire harness W that is displaced relatively upward in the vehicle as described above is in contact with the back surface side of the first surface 13a of the protection portion 13 as shown in FIG. The upward displacement of the vehicle is restrained.

  That is, the first surface 13a (more specifically, the back surface of the first surface 13a) of the protection unit 13 can receive and restrain the wire harness W that is displaced relatively upward. In other words, it is possible to prevent the wire harness W from being pulled by being relatively displaced upward of the vehicle by the deposit. Thereby, even if the deposit and the wire harness W interfere with each other, it is possible to reliably prevent a large tension from being damaged or broken. Therefore, even when the tension is easily applied to the wire harness W as in the case of the rigid rear suspension device S, it is possible to more reliably prevent the wire harness W from being broken.

  As can be understood from the above description, according to the above embodiment, the clamping device 10 can be constituted by the fastening portion 11, the holding portion 12 and the protection portion 13. Thereby, in the clamp apparatus 10, the protection part 13 can cover appropriately the wire harness W wired on the floor lower surface side of the vehicle and exposed to the outside of the vehicle, and is deposited on the body member Bo. It can be protected from things.

  Therefore, it is possible to reliably prevent the deposit from interfering with the wire harness W wired on the lower surface side of the vehicle floor and applying an unnecessary load. As a result, the wire harness W is disconnected due to damage or the like. Occurrence can be reliably prevented. When the clamp device 10 is used, the wire harness W can be wired by the shortest path by eliminating the influence of deposits. For example, the number of the clamp devices 10 installed, that is, the wiring of the wire harness W can be reduced. Cost reduction can also be achieved by significantly reducing the number of necessary components.

  In carrying out the present invention, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention.

  For example, in the said embodiment, it implemented so that the clamp apparatus 10 might support the wire harness W as an electric wire. In this case, the clamping device 10 can be implemented so as to support cables other than the wire harness W. Also in this case, since the clamping device 10 has the protection part 13, it is possible to prevent the cables from being broken by deposits deposited on the body member Bo, as in the above embodiment.

  In the above embodiment, the rigid rear suspension device S is employed as the vehicle side member, and the clamp device 10 is fastened and assembled to the rear suspension device S. In this case, the vehicle-side member is not limited to the rigid rear suspension device S, and it goes without saying that other vehicle suspension devices can be employed. In addition, the vehicle side member is not limited to the suspension device, and various members that form the lower surface of the floor of the vehicle may be employed, and the clamp device 10 may be fastened and assembled to these members. Is possible. In these cases, the same effect as that of the above embodiment can be expected.

  Furthermore, in the said embodiment, the bending part 13c which forms the protection part 13 of the clamp apparatus 10 was formed only in one place, ie, the protection part 13 was formed in L shape, and it implemented. In this case, the number of the bent portions 13c formed is not limited to one, and the bent portions 13c may be formed at a plurality of locations. Or it is also possible to implement without forming the bending part 13c. Even in these cases, the protection unit 13 can appropriately protect the wire harness W from deposits.

DESCRIPTION OF SYMBOLS 10 ... Clamp apparatus, 11 ... Fastening part, 11a ... Fastening surface, 12 ... Holding part, 13 ... Protection part, 13a ... 1st surface, 13b ... 2nd surface, 13c ... Bending part, S ... Rear suspension apparatus (vehicle side) Member), W ... wire harness (electric wire), Bo ... body member (peripheral member)

Claims (4)

A clamp device that is disposed to face a body member that constitutes a vehicle body, and that supports an electric wire that is wired on the floor lower surface side of the vehicle and exposed to the outside of the vehicle,
A plate-like fastening portion extending toward the vehicle lower side, which is fastened to a vehicle-side member constituting the vehicle;
A holding portion that holds the electric wire apart from a fastening surface in the fastening portion in a direction perpendicular to the holding portion , and holds the electric wire with a predetermined interval in the axial direction of the electric wire ;
A first surface connected to the lower end side of the fastening portion and extending in a direction perpendicular to the fastening surface, and formed on the side of the first surface spaced from the fastening surface along the axial direction of the electric wire. And a second surface connected to the holding portion having the predetermined interval on the lower end side, and formed in a substantially L-shaped cross section. A clamping device configured to include a holding portion held by the holding portion and a protection portion that covers a non-holding portion that is not held between the holding portions of the electric wire . The clamping device according to claim 1 ,
The said bending part formed in the said protection part is a clamp apparatus formed so that the cross-sectional shape might turn into a curve. The clamping device according to claim 1 or 2 ,
The protective part is
The clamp apparatus which protects the said electric wire from the deposit which adhered to the peripheral member arrange | positioned in the vicinity of the said electric wire which the said holding | maintenance part hold | maintains, and deposited. The clamping device according to any one of claims 1 to 3 ,
The vehicle side member to which the fastening portion is fastened is
A clamping device, which is a rigid rear suspension device for suspending a wheel from a vehicle body at a rear portion of a vehicle.

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