JP2016199141A - V-rod bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a V-rod bracket which does not hinder the cabling of wiring harnesses and piping into groove forms of side rails.SOLUTION: A V-rod bracket 20 for attaching an end part of a V-rod 10 to left and right side rails 1 is formed by integrally molding: a pair of fastening parts 21 which are fastened to up-and-down positions of web inside faces of the side rails 1; a bridge part 23 which defines a cabling space 22 opened in a longitudinal direction of the side rails 1 between the web inside faces and itself by straddling a clearance between the fastening parts 21 in a state of being separated from the web inside faces; and a connecting part 24 which is connected to the end part of the V-rod 10 at a side reverse to the cabling space 22 at the bridge part 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a V-rod bracket used for mounting on the side rail side of a V-rod connecting a center portion of an axle and left and right side rails.

  5 and 6 show an example of a suspension structure in a large vehicle such as a large truck. In the example shown here, a pair of left and right side rails extending in the front-rear direction of the vehicle body (the left-right direction in FIG. 5). 1, an axle 3 extending in the vehicle width direction (vertical direction in FIG. 6) and supporting the wheel 2 at both ends thereof is disposed, and is integrated with a lower surface near the end of the axle 3. An air spring 5 that absorbs vibrations in the vertical direction is interposed between the front and rear ends of the support beam 4 assembled to the bottom of the side rail 1.

  And the upper end part of the lower rod bracket 6 extended in the downward direction is attached to the web outer surface of the side rail 1 further ahead of the air spring 5 arranged on the front side, and the lower end part of the lower rod bracket 6 and An intermediate portion of the support beam 4 is tiltably connected by a lower rod 7 that performs front-rear positioning on the lower side of the axle 3.

  However, the example shown here is generally referred to as a lower rod-integrated stabilizer, and each lower rod 7 also serves as an arm of the stabilizer 8 that increases the roll rigidity of the vehicle body. The front end of each lower rod 7 is fixedly attached to both ends of a stabilizer bar 9 of a hollow pipe that is held by rubber bushes at the lower ends of the left and right lower rod brackets 6 and extends in the vehicle width direction.

  That is, the stabilizer bar 9 and each lower rod 7 bridge the left and right wheels 2 in a U shape in plan view, and when the left and right wheels 2 have different vertical movements due to cornering or the like. The torsional moment acts on the stabilizer bar 9, and the reaction force causes the left and right wheels 2 to return to their original positions.

  On the other hand, since it is difficult to reliably suppress the rotational moment (braking force or driving force) and the lateral displacement moment about the axle 3 only by the lower rods 7, The left and right side rails 1 are connected by a V rod 10 that functions as an upper rod.

  That is, if such a V rod 10 is used as an upper rod, it becomes possible to respond to inputs in both the front-rear direction and the vehicle width direction of the vehicle body, so a parallel-link type torque rod was adopted. As a countermeasure against the input in the vehicle width direction as in the case, a lateral rod need not be provided in parallel.

  Note that the middle part of the support beam 4 and the side rail 1 immediately above are connected by a shock absorber 11 extending in the vertical direction, and the shock absorber 11 suppresses the back-up of vibration in the vertical direction. Therefore, the vibration is attenuated.

  The connection between the V rod 10 and the left and right side rails 1 in the conventional suspension structure configured as described above is performed via the V rod bracket 12 attached to the web inner surface of the side rail 1. The V rod bracket 12 is fastened to a bifurcated tip portion of the V rod bracket 12 with a swing pin 13 swingably mounted at both ends 10a of the V rod 10 that are open in a V shape. It has become so.

  That is, the end portion 10a of the V rod 10 that branches off from the center portion of the axle 3 is extended to a rubber bush by a spherical portion (not shown) at the center of the swing pin 13 with the end portion 10a of the V rod 10 as a boss portion. The both ends of the swing pin 13 projecting on both sides of the end portion 10 a are fastened to the tip end portion of each V rod bracket 12.

  Here, as shown in FIG. 7 as a single perspective view, the conventional V rod bracket 12 has a flat shape in which the base end portion 12A closely follows the inner surface of the web of the side rail 1. A flat base end portion 12A is fastened to the web inner surface of the side rail 1 by fastening bolts B and nuts N (see FIG. 8), and the V rod 10 is connected to the base end portion 12A. A tip portion 12B fastened to the end portion 10a rises in a bifurcated shape.

  Further, as shown in FIG. 6, the connection between the branch end 10b at the intermediate position of the V rod 10 and the upper center of the axle 3 is connected to the branch end 10b of the V rod 10 and the end 10a. The swing pin 14 equipped in the same configuration is fastened to an axle side bracket 15 on the upper center portion of the axle 3.

  As prior art document information related to this type of V rod connection structure, there is Patent Document 1 below.

JP 2007-253830 A

  However, in recent years, the side rail 1 has been modularized and assembled, and the harness 16 and piping from various devices are placed in the groove shape facing the inner side in the vehicle width direction of the side rail 1. 17 is required to be routed ahead, but as described above, the V rod bracket 12 is equipped with the base end portion fastened to the inner surface of the side rail 1 web. Therefore, the harness 16 and the piping 17 must be routed by detouring the V rod bracket 12 to the inner side in the vehicle width direction, and the middle of the route is fixed to the V rod 10 and the axle 3 via the clamp 18 and the bracket 19. As a result, it is difficult to attach the harness 16 and the pipe 17 to the side rail 1, which constitutes one factor that hinders the modularization of the side rail 1.

  Further, since the harness 16 and the piping 17 must be routed by detouring the V rod bracket 12 inward in the vehicle width direction, the total length of the harness 16 and the piping 17 is increased, and the clamp 18 and the bracket 19 are necessary. As a result, there has been a problem of increasing the weight and cost.

  In addition, if the harness 16 and the piping 17 are routed by detouring the V rod bracket 12 to the inner side in the vehicle width direction, the harness 16 and the piping 17 may be easily exposed to stepping stones. From the viewpoint of protecting important safety parts such as a brake tube, it was not preferable.

  6 and 8, C indicates a cross member for connecting the left and right side rails 1 and is indicated by an imaginary line for convenience of explanation. A portion is provided so as not to block a route through which the harness 16 and the piping 17 are routed.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a V rod bracket that does not hinder the wiring of a harness or piping into a groove shape of a side rail.

  The present invention is a V rod bracket for attaching an end of a V rod to left and right side rails, and a pair of fastening portions fastened to the upper and lower positions of the inner side surface of the side rail, and between the fastening portions. Is bridged to form an installation space that opens in the longitudinal direction of the side rail between the web inner surface and the web inner surface, and is arranged in the bridge portion. A connecting portion connected to an end portion of the V rod on the opposite side to the rope space is provided.

  Thus, in this way, even when the V rod bracket is fastened to the vertical position of the web inner surface of the side rail via the fastening portions, the fastening portions are separated from the web inner surface. Since the wiring space is secured between the web inner side surface by the bridge portion extending in an arch shape, harnesses and piping can be routed through this wiring space, and the V rod bracket is arranged in the vehicle width direction inside. There is no need to route the harness and piping around.

  Further, in the present invention, the fastening portion is formed thick so as to form a raising pier portion for separating the bridge portion from the web inner surface of the side rail, and is inserted from the web outer surface of the side rail. It is preferable that a screw hole is formed so that the fastening bolt can be directly screwed.

  If it does in this way, it will become possible to secure a routing space larger by using a fastening part as a bridge pier part for raising, and while using the screw hole of this fastening part, the web outer side surface of a side rail The fastening bolt inserted from the side can be screwed directly, and the work of screwing from the inner side surface of the side rail web is eliminated, and the assembling workability and the serviceability are greatly improved. .

  Further, in the present invention, it is preferable that each fastening portion, the bridge portion, and the connecting portion are integrally formed, and in this way, it becomes possible to manufacture the V rod bracket as a conventional single part. It is not necessary to increase the number of parts and assembly man-hours.

  According to the above-described V rod bracket of the present invention, various excellent effects as described below can be obtained.

  (I) According to the invention described in claim 1 of the present invention, harnesses and piping are arranged along the side rails without hindrance using the arrangement space secured by the arched bridge portion of the V rod bracket. Because it can be routed, it is easy to modularize the side rails by attaching the harness and piping, shortening the overall length of the harness and piping, and eliminating the need for extra clamps and brackets. In addition, it is possible to protect the harness and piping in the groove shape of the side rail so that they are not exposed to stepping stones, and it is possible to reliably protect important safety parts such as brake tubes. .

  (II) According to the invention described in claim 2 of the present invention, it is possible to secure a larger wiring space by using the fastening portion as a pier portion for raising the height, and screw holes of the fastening portion. The fastening bolt inserted from the outer side of the side rail web can be directly screwed in, which eliminates the need for screwing from the inner side of the side rail web and greatly improves assembly and maintenance. Can be improved.

  (III) According to the invention described in claim 3 of the present invention, the V rod bracket can be manufactured as a conventional single part by integrally forming each fastening portion, the bridge portion, and the connecting portion. Thus, an increase in the number of parts and assembly man-hours can be avoided in advance.

It is a side view which shows an example of the form which implements this invention. It is the perspective view which looked at the V rod bracket of FIG. 1 from the front side. It is the perspective view which looked at the V rod bracket of FIG. 1 from the back side. It is a side view which shows the example which fastened the fastening part of FIG. 1 with the volt | bolt and the nut. It is a side view showing an example of a suspension structure in a large vehicle. FIG. 6 is a plan view of the suspension structure of FIG. 5. It is a perspective view shown with the single item which shows an example of the conventional V rod bracket. It is a side view which shows the attachment state of the V rod bracket of FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 3 show an example of an embodiment for carrying out the present invention, and portions denoted by the same reference numerals as those in FIGS. 5 and 6 represent the same items.

  As shown in FIGS. 1 to 3, in this embodiment, the V rod bracket 20 for attaching the end 10 a of the V rod 10 to the left and right side rails 1 is fastened to the vertical position on the inner side surface of the side rail 1. The pair of fastening portions 21 are opened in the longitudinal direction of the side rail 1 between the fastening portion 21 and the web inner surface by crossing in an arch shape in a state of being separated from the web inner surface. A single cast product comprising a bridge portion 23 that defines the routing space 22, and a connecting portion 24 that is connected to the end portion 10 a of the V rod 10 on the opposite side of the routing space 22 in the bridge portion 23. Are integrally molded.

  Here, the fastening portion 21 of the V rod bracket 20 is formed to be thick so as to form a bridge pier for raising the bridge portion 23 away from the web inner surface of the side rail 1, and A screw hole 25 (see FIG. 2) is formed in the fastening portion 21 so that the fastening bolt B inserted from the web outer surface of the side rail 1 can be directly screwed.

  Further, the connecting portion 24 connected to the end portion 10a of the V rod 10 rises in a bifurcated shape on the opposite side to the routing space 22 in the bridge portion 23, and the distal end portion forming the bifurcated shape has a bifurcated shape. A screw hole 26 for fastening both ends of the swing pin 13 protruding from the end 10a of the V rod 10 with a fastening bolt or the like is formed.

  One of the bifurcated connecting portions 24 is supported and reinforced by the arch structure of the bridge portion 23, and the other of the bifurcated connecting portions 24 is supported and reinforced from three sides by ribs 27, 28, and 29. Has been.

  Thus, even if the V rod bracket 20 is fastened to the upper and lower positions of the web inner side surface of the side rail 1 via the respective fastening portions 21, the web inner side surfaces are connected to each other between the fastening portions 21. Since the routing space 22 is secured between the web inner surface by the bridge portion 23 extending in an arch shape while being separated from the web, the harness 16 and the piping 17 can be routed through the routing space 22. Thus, it is not necessary to route the harness 16 and the piping 17 by detouring the V rod bracket 20 inward in the vehicle width direction.

  Further, by using the fastening portion 21 as a pier portion for raising, it is possible to secure a larger wiring space 22 and to use the screw hole 25 of the fastening portion 21 to remove the side rail 1 from the web. The fastening bolt B inserted from the side surface can be directly screwed, and the work of screwing from the inner surface of the web of the side rail 1 is eliminated, so that the assembling workability and the serviceability are greatly improved. It will be.

  For example, as shown in FIG. 4, when the fastening portion 21 is fastened with a fastening bolt B and a nut N as in the prior art, a bolt seat surface 21a is processed in the fastening portion 21 and a bolt hole 30 without a female screw is opened. The bolt B is inserted from the web inner surface of the side rail 1 through the bolt hole 30 and fastened by the nut N on the web outer surface.

  However, in this case, there is a possibility that the bent portion x is formed when the bridge portion 23 is formed in an arch shape, and stress concentration may occur. However, as described above, the fastening portion 21 is formed so as to form a raised pier portion. If the screw hole 25 is formed to be thick, it is easy to adopt a high strength structure that does not cause stress concentration.

  Therefore, according to the above embodiment, the harness 16 and the piping 17 are routed along the side rail 1 without hindrance using the routing space 22 secured by the arch-shaped bridge portion 23 of the V rod bracket 20. Therefore, the harness 16 and the piping 17 can be attached in advance, and the side rail 1 can be easily modularized, and the overall length of the harness 16 and the piping 17 can be shortened and unnecessary clamps and brackets are unnecessary. In addition, the harness 16 and the piping 17 can be protected in the groove shape of the side rail 1 so as not to be exposed to the flying stones, and important safety parts such as a brake tube can be secured. It can also be protected.

  Moreover, while using the fastening part 21 as a bridge pier part for raising, the wiring space 22 can be secured larger, and from the web outer surface of the side rail 1 using the screw hole 25 of the fastening part 21. The inserted fastening bolt B can be directly screwed, and the work of assembling and checking and maintenance can be greatly improved without the need for screwing from the web inner surface of the side rail 1.

  Furthermore, since the V rod bracket 20 is manufactured as a conventional single part in which each fastening part 21, the bridge part 23, and the connecting part 24 are integrally molded, an increase in the number of parts and assembly man-hours can be avoided in advance. Can do.

  Note that the V rod bracket of the present invention is not limited to the above-described embodiments, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Side rail 10 V rod 10a End part 16 Harness 17 Piping 20 V rod bracket 21 Fastening part 22 Routing space 23 Bridge part 24 Connection part 25 Screw hole B Fastening bolt

Claims (3)

  A V rod bracket for attaching the end of the V rod to the left and right side rails, and a pair of fastening portions fastened to the upper and lower positions on the inner side surface of the side rail, and between the fastening portions in the web. A bridge portion defining a routing space opened in the longitudinal direction of the side rail between the web inner side surface by crossing in an arch shape in a state of being separated from the side surface, and opposite to the routing space in the bridge portion A V rod bracket comprising a connecting portion connected to an end portion of the V rod on the side.   The fastening portion is formed to be thick so as to form a bridge pier for raising the bridge portion away from the inner side surface of the side rail web, and the fastening bolt inserted from the outer side surface of the side rail is directly screwed. The V-rod bracket according to claim 1, wherein a screw hole is formed so as to be able to.   The V rod bracket according to claim 1 or 2, wherein each fastening portion, a bridge portion, and a connecting portion are integrally formed.

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