JP5461907B2 - Vehicle carrier support device - Google Patents

Description

  The present invention relates to a vehicle carrier support device that supports a carrier, etc., on a vehicle body or the like while suppressing vibration or the like.

  In recent years, it has been desired to improve the transportation quality of goods sensitive to vibrations such as precision machinery. From this viewpoint, springs and air springs are provided between the vehicle frame and the loading platform. Patent Literature 1 and Patent Literature 2 have proposed that intervene.

  Further, in Patent Document 3, an air spring is provided between the vehicle frame and the loading platform, the support height can be kept constant even when the load is changed, and the spring constant can be kept low. There has been proposed a vibration damping support device that can perform positioning in the horizontal direction.

JP 2001-271873 A Japanese Utility Model Publication No. 57-154575 JP 2006-105223 A

However, those described in Patent Documents 1 to 3 do not sufficiently take into account the specific state during transportation of the article loaded on the loading platform, and are affected by vibration depending on the article to be transported. As a result, damage or the like may occur and the product value may be reduced.
In addition, those described in Patent Documents 1 to 3 require relatively complicated and expensive components such as springs, shock absorbers, lateral rods, air springs, etc., and it is difficult to reduce product costs and installation man-hours. There are also actual situations such as many restrictions on space.

  In view of such circumstances, the applicant of the present application disclosed in Japanese Patent Application No. 2008-54304 a vehicle carrier support structure for supporting a cargo bed on a vehicle frame, between the vehicle frame and the cargo bed. In addition, the elastic element is interposed, and the elastic element reduces the vibration of the loading platform in the frequency range of at least 10 Hz to 30 Hz as compared with the case where the elastic element is not interposed. A load carrier support structure was proposed.

  The present inventors have continued various research experiments, and as a result, have obtained new knowledge about further modifications and improvements to the structure and apparatus proposed in Japanese Patent Application No. 2008-54304.

  The present invention has been made in view of such circumstances, and has a simple and inexpensive configuration, and can be easily mounted and supported on a vehicle body or the like while suppressing vibrations or the like on a vehicle body or the like. The purpose is to provide.

For this reason, the vehicle carrier support device according to the present invention includes:
A vehicle carrier support device for supporting a carrier on a frame of a vehicle,
It is configured to include an elastic element interposed between a frame side member attached to the vehicle frame and a cargo bed side member attached to the cargo bed,
In the frame side member, a pair of bolt holes are opened on both sides across the frame,
A pair of bolt holes corresponding to the pair of bolt holes are opened in the fixing member disposed substantially orthogonal to the frame on the lower side of the frame,
In what fastens and fixes the frame side member to the frame via a pair of bolts inserted through the pair of bolt holes,
The elastic element is divided into a plurality in the vehicle longitudinal direction,
A reinforcing member is provided that passes between the divided elastic elements, extends between a pair of bolt holes opened in the frame side member, and is tightened together by the pair of bolts. To do.

  In the present invention, the reinforcing member may be formed in a hollow shape.

  In the present invention, the frame side member may be configured to include a positioning element that performs positioning in the yaw direction with respect to the frame.

  In the present invention, the positioning element may be an element formed by extending downward from the frame side member along the frame.

  According to the present invention, it is possible to provide a vehicular cargo bed support device that can support a cargo bed or the like on a vehicle body or the like while suppressing vibrations or the like with a simple and inexpensive configuration and easy attachment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. The present invention is not limited to the examples described below.

  As shown in FIG. 1, the vehicle carrier support structure and device according to the first embodiment has a mounting 2 mounted on, for example, a vehicle body frame 1 of a transportation vehicle. The mounting 2 includes a pair of rubber elements 2A and 2A. 1, it is attached to the vehicle body frame 1 with a fixing bolt 3, a fixing member 4, a reinforcing member 5 and the like via a lower plate 2B engaged with the lower side in FIG. For example, at least two mountings 2 can be provided in the vehicle front-rear direction of the left and right frames 1 extending in the vehicle front-rear direction.

A vertical joist 6 made of wood or the like is placed along the frame 1 on the upper plate 2C that engages the upper side in FIG. 1 of the pair of rubber elements 2A and 2A that are components of the mounting 2, and is a fixing member. 7, the upper plate 2 </ b> C and the vertical joist 6 are fastened and fixed via a fixing bolt 8 and the like.
For example, a metal joist 9 extending in a direction crossing the vertical joist 6 is placed on the vertical joist 6, and a loading platform (not shown) is placed on the joist 9. It is supposed to be placed.

  2 to 5, for example, the mounting 2 is provided with a pair of rubber elements 2A and 2A arranged in the front-rear direction of the vehicle, and a lower plate on the lower surface of the pair of rubber elements 2A and 2A. 2B is joined, and the upper plate 2C is joined to the upper surface of the pair of rubber elements 2A, 2A.

  Both ends of the lower plate 2B in the vehicle front-rear direction are bent upward in FIG. 2, and the upper plate 2C is folded so that both ends of the lower plate 2B in the vehicle front-rear direction cover the bent portion of the upper plate 2C. It is bent downward in FIG. That is, when viewed from the front-rear direction of the vehicle, the bent portion of the lower plate 2B, the upper play, and the bent portion of 2C overlap each other in a predetermined manner.

  And the rubber | gum 2D is joined to the bending part side of the lower side plate 2, for example of this superimposition part, for example, the upper plate 2C (load bed side) is set with respect to the lower side plate 2B (frame 1 side) at the time of braking of a vehicle. When a relatively large deceleration acceleration is received and the front plate 2C is relatively displaced forward, the bent portion of the upper plate 2C abuts on the rubber 2D and then the bent portion of the lower plate 2, thereby causing the upper plate 2C (loading platform) Side) relative to the lower plate 2B (frame 1 side) relative to a predetermined amount or more, and the rubber 2A is prevented from being damaged.

  Further, as shown in FIG. 3, one end of the lower plate 2B of the mounting 2 in the left-right direction of the vehicle is bent upward in FIG. 3, and the bent portion of the lower plate 2B is the one end of the upper plate 2C. The upper plate 2C is bent downward in FIG. 2 so as to cover one end portion corresponding to. That is, when viewed from the left-right direction of the vehicle, the bent portion of the lower plate 2B and the bent portion of the upper plate 2C are overlapped with each other in a predetermined manner.

  And the rubber | gum 2E is joined to the bending part side of the lower side plate 2 of this overlapping part, for example, when the vehicle turns, the upper side plate 2C (loading side) is made with respect to the lower side plate 2B (frame 1 side). When a relatively large turning acceleration is received and relative displacement to the left in FIG. 2 occurs, the bent portion of the upper plate 2C abuts on the rubber 2E and then the bent portion of the lower plate 2, thereby The plate 2C (loading platform side) is configured to restrict the relative displacement of the lower plate 2B (frame 1 side) relative to a predetermined amount or more, and to prevent the rubber 2A from being damaged.

  Here, the rubber elements 2A and 2A are divided into two because the reinforcing member 5 can be penetrated in the vehicle left-right direction, and as described above, the upper plate 2C (loading platform side) is the lower plate 2B. 2 is relatively displaced in the front-rear direction in FIG. 2 or the left-right direction in FIG. 3 with respect to the (frame 1 side), but the area of the rubber element surface substantially perpendicular to the relative displacement direction can be increased by dividing it into two. This is because even when the rubber element has a desired elastic coefficient, deterioration of the rubber element in a direction in which a relatively large acceleration or deceleration G acts can be effectively suppressed.

  In addition, if it is set as a structure like a present Example, since the special process etc. are not required with respect to the flame | frame 1 in order to attach a vehicle carrier support apparatus to the flame | frame 1, the said vehicle carrier support apparatus is not required. The common frame 1 can be used, so that the product cost can be reduced.

  In addition, for example, it is easy to attach and change the loading platform (so-called flat body, wing type, aluminum van, cold storage vehicle, etc.) after shipment of the vehicle as required, providing a user-friendly vehicle loading platform support device Is something that can be done.

  By the way, the mounting 2 is attached to the frame 1 by inserting the fixing bolts 3 arranged on both sides of the frame 1 through the bolt holes of the lower plate 2B as shown in FIGS. However, in the case of such a method, there is a possibility that the lower plate 2B is warped and deformed as shown in FIG. 6B.

  Such warp deformation of the lower plate 2B increases the amount of plastic deformation with time and loses elasticity, leading to a decrease in the fastening force of the fixing bolt 3, and as a result, the frame 1 and the lower plate 2B are Since relative movement such as sliding and free movement occurs between them, it is necessary to suppress such warpage deformation.

  For this reason, it is assumed that the thickness of the lower plate 2B is increased to suppress deformation. However, this increases the height of the loading platform and increases the weight. Become.

  Therefore, in this embodiment, the reinforcing member 5 can effectively prevent warpage deformation of the lower plate 2B while keeping the thickness of the lower plate 2B thin.

  The reinforcing member 5 is a member that extends between the pair of fixing bolts 3 and is fastened together with the lower plate 2B and the frame 1 by the pair of fixing bolts 3, as shown in FIGS. For example, a hollow member can be used, and a member having a substantially square cross section, a member having a substantially U-shaped cross section (the open side faces downward), or the like can be employed.

  According to the reinforcing member 5 according to the present embodiment, both the increase in weight and the increase in the height of the loading platform are kept low, and the deformation of the lower plate 2B is surely suppressed, so that the durability and the reliability are kept high. be able to.

  As described in the first embodiment, the vehicle carrier support structure and device according to the present invention are provided with long bolts (fixing bolts 3, fixing bolts 8), brackets and the like on both the chassis side (frame 1) and the cargo bed side. Therefore, it can be attached without making modifications (drilling, cutting, welding, etc.) on the vehicle side.

  Further, the vehicle carrier support structure and device according to the present invention has the same degree of freedom as the fixing method in which the vertical joist 6 is simply fastened and fixed to the frame 1 with a conventional U bolt with respect to the mounting position in the vehicle longitudinal direction. Excellent assemblability.

  However, regarding the mounting position in the vehicle width direction and the mounting position with respect to the inclination direction of the lower plate 2B relative to the frame 1 when viewed from above the vehicle (the yaw direction, the rotation direction around the so-called Z axis (vertical axis)) Since the degree of freedom of position is high, there is a tendency that positional deviation, mounting variation, and the like are likely to occur.

  For this reason, in the second embodiment, as shown in FIG. 8, the vehicle width direction and the yaw direction (the rotation direction around the Z-axis) between the lower plate 2B and the frame 1 on which the plate is placed and supported. A positioning element 10 is provided for performing positioning in ().

  The positioning element 10 is configured to extend from the lower plate 2 </ b> B and extend downward along the frame 1. For example, the lower plate 2B can be bent or connected to the lower plate 2B by welding or the like.

  According to the second embodiment provided with such a positioning element 10, the lower plate 2B can be positioned with respect to the frame 1 in the vehicle width direction and the yaw direction (rotation direction around the Z axis). Variations can be suppressed, and stable quality can be provided.

  The third embodiment is applied when a bolt hole is drilled in the frame 1 or when drilling is possible. As shown in FIG. 9, the positioning element 11 extends from the lower plate 2 </ b> B to the frame 1. It is comprised so that it may extend below along.

  Further, a bolt hole is opened in the positioning element 11 and is aligned with the bolt hole of the frame 1 so that the fixing bolt 12 is inserted. As shown in FIG. 9, the positioning bolt 11 and the lower plate 2 </ b> B and the mounting 2 are fastened and fixed to the frame 1 by fastening the fixing bolt 12 via a nut or the like. .

  According to the third embodiment, the lower plate 2B and the mounting 2 are fastened to the frame 1 while positioning the lower plate 2B with respect to the frame 1 in the vehicle width direction and the yaw direction (rotation direction around the Z axis). Since it can fix, the variation at the time of an assembly | attachment etc. can be suppressed and the stable quality can be provided, further promoting the simplification of a structure and weight reduction.

  In the second and third embodiments, as in the first embodiment, the rubber element 2A can be divided into a plurality of parts in the vehicle front-rear direction.

  The embodiment described above is merely an example for explaining the present invention, and various modifications can be made without departing from the gist of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an overall configuration of a vehicle carrier support structure and apparatus according to Embodiment 1 of the present invention. It is sectional drawing which cut | disconnected the vehicle carrier support structure and apparatus of FIG. 1 in the vehicle front-back direction. It is the side view which looked at the carrier support structure and apparatus for vehicles of FIG. 1 from the vehicle front-back direction. It is the top view which looked at the loading platform support structure and apparatus for vehicles of Drawing 1 from the loading platform direction. It is a perspective view which extracts and shows the loading platform support apparatus for vehicles of an Example same as the above. It is a figure explaining the conventional subject. It is a figure explaining the reinforcement member which concerns on an Example same as the above. It is a figure which shows the structural example of the loading platform support structure for vehicles which concerns on Example 2, and an apparatus. It is a figure which shows the structural example of the loading platform support structure for vehicles which concerns on Example 3, and an apparatus.

1 frame 2 mounting (support device according to the present invention)
2A Rubber element (elastic element according to the present invention)
2B Lower plate (frame side member according to the present invention)
2C Upper plate (cargo side member according to the present invention)
5 Reinforcing member 10 Positioning element 11 Positioning element

Claims (4)

A vehicle carrier support device for supporting a carrier on a frame of a vehicle,
It is configured to include an elastic element interposed between a frame side member attached to the vehicle frame and a cargo bed side member attached to the cargo bed,
In the frame side member, a pair of bolt holes are opened on both sides across the frame,
A pair of bolt holes corresponding to the pair of bolt holes are opened in the fixing member disposed substantially orthogonal to the frame on the lower side of the frame,
In what fastens and fixes the frame side member to the frame via a pair of bolts inserted through the pair of bolt holes,
The elastic element is divided into a plurality in the vehicle longitudinal direction,
A reinforcing member is provided that passes between the divided elastic elements, extends between a pair of bolt holes opened in the frame side member, and is tightened together by the pair of bolts. A vehicle carrier support device.   The vehicle carrier support device according to claim 1, wherein the reinforcing member is formed in a hollow shape.   The vehicle bed support structure according to claim 1 or 2, wherein the frame side member includes a positioning element that positions the frame side member in the yaw direction. 4. The vehicle carrier support device according to claim 3, wherein the positioning element is an element formed to extend downward from the frame side member along the frame.

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