JP4952673B2 - Brake hose arrangement structure - Google Patents

Description

  The present invention relates to an arrangement structure of a brake hose.

  Conventionally, as a suspension device mounted on a vehicle such as an automobile, a suspension device shown in FIG. FIG. 1 is a perspective view of a suspension device according to a conventional example viewed from the inside of a vehicle and obliquely forward. FIG. 2 is a view of the suspension device of FIG. 1 as viewed from above the vehicle.

  1 and 2, particularly the suspension device 10 shown in FIG. 2, the disc brake device 6 as a brake device is arranged at the rear (rear side) of the vehicle, and the upper arm 4 is arranged at the front (front side) of the vehicle. Yes. Furthermore, according to the figure, the shock absorber 5 is arranged in front of the vehicle (front side) with respect to the upper arm 4. Such a suspension device 10 is called a rear trailing double wishbone type and is a suspension device having a structure adopted in the rear suspension device.

  The suspension device 10 is provided with a brake hose 9. The brake hose 9 is used between the disc brake device 6 and a vehicle body (not shown) to supply fluid pressure to the disc brake device 6 (strictly, a brake caliper that is a component constituting the disc brake device 6). It is a hose arranged to connect.

  Here, in order to prevent a decrease in durability of the brake hose 9 itself, it is necessary to consider an appropriate arrangement structure of the brake hose 9.

  As a technique related to the arrangement structure of the brake hose, for example, Patent Document 2 discloses a wheel support member that rotatably supports a front wheel, and one end portion that is rotatably attached to a lower portion of the wheel support member. A lower link attached to the member so as to be swingable up and down, a connecting member disposed on the upper part of the wheel support member so as to be rotatable around a vertical axis, and an upper end portion attached to the vehicle body side member so as to be swingable. And a shock absorber having a lower portion attached to the connecting member, an upper link having one end portion attached to the vehicle body side member and the other end portion swingably attached to the connecting member, and moving in the vehicle width direction along with steering to In a vehicle equipped with a front suspension device that includes a tie rod that rotates a wheel support member, between a wheel cylinder of a brake device that brakes the front wheel and a vehicle body side member A placement structure arranged the brake hose, arrangement is disclosed, wherein a middle of the brake hose was supported by the upper link.

According to this, since the brake hose is divided into two in the length direction by supporting the middle of the brake hose on the upper link (corresponding to the upper arm), when both sides are simply attached to the vehicle body side member and the wheel cylinder, In comparison, it is possible to suppress the swing of the brake hose.
JP 2007-307968 A JP-A-9-263236

  By the way, the arrangement structure of the brake hose disclosed in Patent Document 2 is premised on the front suspension device (the suspension device having a structure in which both the upper arm and the disc brake device are arranged on the front side of the vehicle in the wheel connecting member). Yes.

  Therefore, even if it is intended to be applied to the suspension device having the structure as shown in FIGS. 1 and 2 employed in the rear suspension device, it cannot be similarly applied.

  That is, the suspension device in which the disc brake device is disposed at the rear of the vehicle, the upper arm is disposed at the front of the vehicle, and the shock absorber is disposed at the front of the vehicle with respect to the upper arm is new in terms of peripheral configuration. An appropriate brake hose arrangement structure for such a suspension device has not been disclosed.

  The present invention has been invented in order to solve this problem in view of the above points. The brake device is disposed at the rear of the vehicle, the upper arm is disposed at the front of the vehicle, and the shock absorber is disposed at the upper arm. An object of the present invention is to provide an appropriate brake hose arrangement structure in a suspension device arranged in front of a vehicle.

  In order to achieve the above object, the brake hose arrangement structure according to the present invention includes a wheel support member that rotatably supports a rear wheel, and a rear wheel attached to a position behind the vehicle of the wheel support member. A brake device for braking, an upper arm extending in the vehicle width direction, having one end connected to the vehicle body and the other end connected to a position in front of the vehicle of the wheel support member, and swingable in the vehicle vertical direction; A shock absorber extending in the vehicle vertical direction, having one end connected to the vehicle main body and the other end connected to the wheel support member, and capable of expanding and contracting in the vehicle vertical direction at a position in front of the vehicle with respect to the upper arm. A brake hose arrangement structure disposed between the brake device and a vehicle main body in a vehicle including a suspension device having the suspension device, wherein the brake hose includes the upper upper So as to pass through the upper and lower beam can be configured to be disposed in a U-shape.

  Moreover, in order to achieve said objective, the said brake hose in this invention can be comprised so that the middle of the said brake hose may be supported by the said upper arm.

  In order to achieve the above object, the brake hose according to the present invention includes a first attachment portion between the brake hose and the brake device, and a second attachment portion between the brake hose and the vehicle body. Both of them can be arranged so as to be positioned at the rear of the vehicle with respect to the upper arm.

  In order to achieve the above-mentioned object, the brake hose according to the present invention is disposed so as to reach from the first attachment portion below the upper arm through the space between the upper arm and the drive shaft. Can be configured.

  In order to achieve the above object, the brake hose according to the present invention is configured such that the middle of the brake hose is supported at two locations by the upper arm, and the pipe between the two locations is a metal tube. can do.

  In order to achieve the above object, the brake hose according to the present invention maintains a U-shaped arrangement passing through the upper arm and the lower arm even when the suspension device is moved. Can be configured.

  According to the present invention, an appropriate brake hose in a suspension device in which the brake device is disposed at the rear of the vehicle, the upper arm is disposed at the front of the vehicle, and the shock absorber is disposed at the front of the vehicle with respect to the upper arm. An arrangement structure can be provided.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

[Embodiment]
(Overview of suspension system)
FIG. 3 is a perspective view of the suspension device according to the present embodiment as viewed from the inside of the vehicle and obliquely forward. FIG. 4 is a view of the suspension device of FIG. 3 as viewed from the direction A (above the vehicle). FIG. 5 is a view of the suspension device of FIG. 3 as viewed from a direction B (inner side of the vehicle and obliquely rearward).

  First, an outline of the suspension device 10 according to the present embodiment will be described with reference to FIGS. 3 and 4. The suspension device 10 shown in FIG. 3 illustrates a part of the structure for supporting the right rear wheel 8 of the vehicle, that is, the rear suspension device.

  As shown in FIG. 3, the suspension device 10 includes a carrier 1 formed in a substantially annular shape, a trailing arm 2 connected to the carrier 1 and swingable, a lower arm 3 connected to the carrier 1 and swingable, and an upper arm 3. An arm 4 and a shock absorber 5 that is connected to the carrier 1 at one end and can be expanded and contracted are provided.

  The carrier 1 is a wheel support member that rotatably supports a wheel (rear wheel) 8. The wheel 8 includes a wheel 8a and a tire 8b attached to the outer periphery of the wheel 8a. With this configuration, the wheel 8 is rotationally driven by a drive shaft (axle) 7 that is inserted through and connected to the inside of the carrier 1.

  The trailing arm 2 extends in the vehicle front-rear direction, and a front end (one end) is connected to the vehicle body via a rubber bush 21. The trailing end (other end) of the trailing arm 2 is connected to the front side of the carrier 1. With this configuration, the trailing end of the trailing arm 2 and the carrier 1 can swing in the vehicle vertical direction around the front end of the trailing arm 2.

  The lower arm 3 extends in the vehicle width direction, and includes a front arm 3a disposed on the vehicle front side and a rear arm 3b disposed on the vehicle rear side. The vehicle inner ends (one end) of the front arm 3a and the rear arm 3b are connected to the vehicle body by a bolt 32 and a nut 33 via a rubber bush 31. On the other hand, the vehicle outer ends (other ends) of the front arm 3 a and the rear arm 3 b are connected to the lower side of the carrier 1 by a bolt 35 and a nut 36 via a ball joint 34. With this configuration, the vehicle outer end 3c of the front arm 3a and the rear arm 3b can swing in the vehicle vertical direction around the vehicle inner end 3d.

  The upper arm 4 extends in the vehicle width direction. The vehicle inner end (one end) of the upper arm 4 is connected to the vehicle main body by a bolt 42 and a nut 43 via a rubber bush 41. Further, as shown in FIG. 4, the vehicle outer end (the other end) of the upper arm 4 is connected to the upper end of the carrier 1 through a ball joint 44 by a bolt 45 and a nut 46. With this configuration, the upper arm 4 can swing in the vehicle vertical direction around the vehicle inner end.

  The upper arm 4 in the present embodiment is characterized in that the vehicle outer end (the other end) is coupled at a position in front of the vehicle of the carrier 1 (vehicle front of the drive shaft 7) as shown in FIG. Yes.

  The shock absorber 5 extends in the vehicle vertical direction. The upper end (one end) of the shock absorber 5 is connected to the vehicle main body by a bolt 52 and a nut 53 via a rubber bush 51. The lower end (the other end) of the shock absorber 5 is connected to a bracket 1 a provided at the lower end of the carrier 1 by a bolt 55 and a nut 56 via a rubber bush 54. With this configuration, the shock absorber 5 can expand and contract in the vertical direction of the vehicle, and attenuates and absorbs the vertical vibration of the wheel 8 transmitted through the carrier 1.

  As shown in FIG. 4, the shock absorber 5 according to the present embodiment is characterized in that it can be expanded and contracted in the vehicle vertical direction at a position in front of the vehicle with respect to the upper arm 4.

  The disc brake device 6 is a device that is attached to the carrier 1 and brakes the wheels 8. Here, the disc brake device 6 according to the present embodiment may refer to a brake caliper that is one of the main components.

  The disc brake device 6 according to the present embodiment is characterized in that the disc brake device 6 is mounted at a position on the rear side of the carrier 1 (rear side of the drive shaft 7) as shown in FIG.

  The drive shaft 7 is a rotating shaft used to transmit engine power to the wheels 8. As described above, the inside of the carrier 1 is inserted and connected to the wheel 8.

  The brake hose 9 is a hose formed of rubber or the like disposed between the disc brake device 6 and the vehicle body in order to supply liquid pressure to the disc brake device 6. One end is connected to the first mounting portion 91 with the disc brake device 6 and the other end is connected to the second mounting portion 92 with the vehicle body. As shown in FIG. 4, the first attachment portion 91 and the second attachment portion 92 are both disposed in the same direction (here, the vehicle rear) with respect to the upper arm 4. The details of the arrangement structure of the brake hose 9 will be described hereinafter.

  As described above, in the suspension device 10 according to the present embodiment, the disc brake device 6 is disposed at the rear of the vehicle, the upper arm 4 is disposed at the front of the vehicle, and the shock absorber 5 is disposed at the front of the vehicle with respect to the upper arm 4. (See particularly FIG. 4).

  Since the suspension device 10 having such a configuration is novel in terms of the peripheral configuration, an appropriate arrangement structure of the brake hose 9 in such a suspension device 10 has not been disclosed conventionally. Therefore, in this embodiment, the arrangement structure of the brake hose 9 as shown below is applied.

(About the arrangement structure of the brake hose 9)
Hereinafter, the arrangement structure of the brake hose 9 in the present embodiment will be described.

  As shown in FIG. 4, the brake hose 9 in the present embodiment is U-shaped (or substantially U-shaped) such that the shape between the first mounting portion 91 and the second mounting portion 92 passes above and below the upper arm 4. It is a structure formed and arranged in a letter shape. Further, the brake hose 9 is arranged so that the middle of the brake hose 9 is supported by the upper arm 4 (here, strictly speaking, a bracket 48 attached to the upper arm 4).

  With this configuration, there is an advantage that interference between the brake hose 9 and peripheral components (such as the shock absorber 5 and the drive shaft 7) can be prevented, and even if the icing occurs, it is difficult to move and the whirling is reduced.

  More specifically, (1) an arrangement structure from the first attachment portion 91 to the upper arm 4, (2) a support structure by the upper arm 4, and (3) an arrangement structure from the upper arm 4 to the second attachment portion 92. The description will be divided into three sections.

((1) Arrangement structure from the first mounting portion 91 to the upper arm 4)
First, the arrangement structure from the first mounting portion 91 to the upper arm 4 will be described.

  As shown in FIG. 4 (or FIG. 5), the brake hose 9 from the first attachment portion 91 to the upper arm 4 is disposed on the lower side of the upper arm 4. That is, the first mounting portion 91 is disposed from the upper arm 4 to the clamp 48b of the bracket 48 attached to the upper arm 4 so as to pass between the upper arm 4 and the drive shaft 7.

  With this configuration, the brake hose 9 can be disposed substantially linearly because there is no relative movement other than torsion in the camber direction. Moreover, interference with the drive shaft 7 arrange | positioned under the brake hose 9 can be avoided.

((2) Support structure by upper arm 4)
Next, a support structure by the upper arm 4 will be described.

  The brake hose 9 arranged up to the clamp 48b of the bracket 48 by the arrangement (1) described above is supported by the upper arm 4 by being fixed by the clamps 48a and 48b at the upper and lower portions of the bracket 48. Here, each of the clamps 48a and 48b is a fastener provided to fasten and fix the brake hose 9 with a screw or the like. A bracket 48 having such two clamps 48 a and 48 b is connected to the upper arm 4 by a bolt 49 and a nut 50.

  With this configuration, the shape between the clamps 48a and 48b of the brake hose 9 is formed in a U shape (or a substantially U shape). In other words, a U-shaped (or substantially U-shaped) arrangement in the vehicle front-rear direction passing through the upper arm 4 is possible. Further, interference with the shock absorber 5 disposed in front of the vehicle with respect to the upper arm 4 can be avoided. Furthermore, it can be made to hardly move even when a forced load is applied.

  It is more preferable that the clamp 48a (a fixed portion provided on the upper side of the upper arm 4) is disposed at a position ahead of the vehicle than the upper arm 4. This is to prevent interference with the shock absorber 5 caused by vibration of the brake hose 9 or the like. Further, it is more desirable that the clamp 48b (a fixed portion provided on the lower side of the upper arm 4) is disposed at a position behind the vehicle relative to the upper arm 4. This is to prevent interference with the drive shaft 7 caused by vibration of the brake hose 9 and the like, and to prevent deterioration of the durability of the brake hose 9 itself.

  Further, the pipe between the two clamps 48a and 48b of the brake hose 9 can be configured to be a metal tube made of metal such as iron. This is because the pipe between the two clamps 48a and 48b does not move (fixed) even when the suspension device 10 itself moves, so the brake hose 9 can be obtained by using a metal tube in advance. This is because it is possible to prevent interference with peripheral components caused by vibration of the device. In this case, it is more effective against icing, and the weight of the brake hose 9 can be reduced.

  The shape of the bracket 48 that supports the brake hose 9 is not limited to the shape shown in FIGS. 4 and 5, and the brake hose 9 is supported by the upper arm 4 itself without the bracket 48. There may be.

((3) Arrangement structure from upper arm 4 to second mounting portion 92)
Subsequently, an arrangement structure from the upper arm 4 to the second mounting portion 92 will be described.

  As shown in FIG. 4 (or FIG. 5), the brake hose 9 from the upper arm 4 to the second attachment portion 92 is arranged on the upper side of the upper arm 4. That is, the clamp 48b of the bracket 48 attached to the upper arm 4 is disposed from the upper arm 4 to the second attachment portion 92 at the rear of the vehicle. As shown in FIG. 5, even when the upper arm 4 swings in the vehicle vertical direction, a gap having a predetermined width for preventing interference is secured between the upper arm 4 and the brake hose 9. ing.

  With this configuration, it is possible to avoid interference with the drive shaft 7 disposed below the brake hose 9. Further, interference with the shock absorber 5 disposed in front of the vehicle with respect to the upper arm 4 can be avoided.

(Supplement)
The above has described the three sections (1), (2), and (3). As described above, the brake hose 9 in the present embodiment is U-shaped (or substantially U-shaped) such that the shape between the first mounting portion 91 and the second mounting portion 92 passes above and below the upper arm 4. It is characterized by being a structure formed and arranged in a shape. For this reason, it is more desirable that such an arrangement structure is always maintained even when the suspension device 10 itself moves.

  As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the requirements shown here, such as combinations with other elements described in the above embodiments. With respect to these points, the present invention can be changed within a range that does not detract from the gist of the present invention, and can be appropriately determined according to the application form.

It is the perspective view which looked at the suspension apparatus which concerns on a prior art example from the vehicle inside and diagonally forward direction. It is the figure which looked at the suspension apparatus of FIG. 1 from the vehicle upper direction. It is the perspective view which looked at the suspension apparatus which concerns on this embodiment from the vehicle inner side and diagonally forward. FIG. 4 is a view of the suspension device of FIG. FIG. 4 is a view of the suspension device of FIG.

Explanation of symbols

1 Carrier 2 Trailing arm 3 Lower arm 4 Upper arm 5 Shock absorber 6 Disc brake device (brake caliper)
7 Drive shaft 8 Wheel (rear wheel)
9 Brake hose 10 Suspension device

Claims (6)

A wheel support member for rotatably supporting the rear wheel;
A brake device for braking the rear wheel, which is attached to the vehicle rear position of the wheel support member;
An upper arm extending in the vehicle width direction, having one end connected to the vehicle main body and the other end connected to the vehicle front position of the wheel support member, and swingable in the vehicle vertical direction;
A shock absorber extending in the vehicle vertical direction, having one end connected to the vehicle main body and the other end connected to the wheel support member, and capable of expanding and contracting in the vehicle vertical direction at a position in front of the vehicle with respect to the upper arm;
An arrangement structure of a brake hose arranged between the brake device and the vehicle main body in a vehicle including a suspension device having:
The brake hose arrangement structure, wherein the brake hose is arranged in a U-shape so as to pass above and below the upper arm.   The brake hose arrangement structure according to claim 1, wherein the brake hose is supported by the upper arm in the middle of the brake hose.   The brake hose includes a first attachment portion between the brake hose and the brake device and a second attachment portion between the brake hose and the vehicle main body at a position behind the vehicle with respect to the upper arm. The arrangement structure of the brake hose according to claim 1, wherein the arrangement structure is as follows.   4. The brake according to claim 3, wherein the brake hose is disposed so as to reach under the upper arm from the first attachment portion through the upper arm and the drive shaft. Hose arrangement structure.   5. The brake hose according to claim 2, wherein a part of the brake hose is supported at two locations by the upper arm, and a pipe between the two locations is a metal tube. Brake hose arrangement structure.   3. The brake hose according to claim 1, wherein the brake hose maintains a U-shaped arrangement that passes above and below the upper arm even when the suspension device moves. 4. Placement structure.

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