JP2014024494A - Vehicle having cargo receiving table lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle comprising a cargo receiving table lifting device, capable of restraining the whole manhours required for installation, compared with a case of using welding means.SOLUTION: A vehicle 1 comprises a cargo receiving table lifting device 100 having a loading platform 3 mounted on a chassis frame 2 extending in the longitudinal direction of the vehicle 1, a column 4 fixed to both left-right sides of a rear part of the loading platform 3 and a cargo receiving table 6 lifted along the column 4, and the loading platform 3 and the column 4 are fixed by fastening in a state via a rib 10.

Description

  The present invention relates to a vehicle provided with a load receiving table lifting device that lifts and lowers a load receiving table along a pair of right and left columns.

  The load receiving platform lifting device having the upright support column is configured to be used for loading and unloading a load between the ground and the vehicle load platform by moving the horizontal load support table along the support column (patent) Reference 1). This load receiving platform lifting device is attached by fixing a column to a partially cut portion behind the loading platform. By fixing the support post at the cutting position of the loading platform, the vehicle does not exceed the total length of the vehicle in which the loading platform lifting device is attached.

  The attachment of the load receiving device lifting / lowering device is a procedure in which the lift device and the load receiving device are sequentially attached after the column is fixed to the load carrier. In detail, after carrying in the vehicle to which the load receiving platform lifting / lowering device is not attached, many processes such as “the cutting process of the rear part of the loading platform” and “the fixing process of each member” are required. Therefore, reduction of manufacturing cost is achieved by unitizing each member to fix (for example, patent documents 2).

JP 2007-331631 A JP 2010-1332062 A

  Regarding the manufacturing cost reduction as described above, in particular, in the “fixing step of each member”, means for simplifying the attachment of the lift device or the like to the fixed support column has been studied. On the other hand, the inventors of the present invention focused on the fact that there is still room for improvement in the process before attaching the lift device or the like in the “fixing process of each member” as judged in the entire manufacturing process. Specifically, attention was paid to the fact that many welding means are used for fixing the columns and the like.

  For example, there are many iron members for fixing the loading platform and the column, and the column is fixed to the loading platform by welding means in order to shorten the working time and secure the desired strength. In the welding means, a painting process is performed before actual welding. Therefore, the curing of the welded portion and the work of peeling the cured portion are required before and after the painting process. In other words, the support column is not fixed at the loading platform cutting position simply by welding work.

Further, there is a possibility that an aluminum member or the like is used in order to reduce the weight of the vehicle. When one of the loading platform or the support column is made of aluminum and the other is made of iron, the heterogeneous members are fixed to each other, and the application of the welding means may be limited. Furthermore, the thickness of the loading platform varies depending on the type of vehicle. For this reason, when a member that is significantly thinner than a support or the like is used, there may be a difference in welding quality due to a difference in the skill of the worker to be welded, and an increase in work man-hours will be caused.
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a vehicle including a load receiving table lifting / lowering device capable of suppressing the total man-hour required for mounting.

  The present invention is characterized by adopting the following means.

  A first aspect of the present invention is a load receiving platform ascending and descending having a loading platform mounted on a chassis frame extending in the vehicle front-rear direction, struts fixed to both left and right sides of the rear portion of the loading platform, and a load receiving platform that is lifted and lowered along the supporting columns. In the vehicle including the device, the loading platform and the support column are fixed by fastening in a state through a rib. Here, “fixing of the loading platform and the support column” means that the fixing is mainly performed by fastening. In other words, even if the weight of the support column, the weight of the load receiving platform engaged with the support column, or the load on the loading platform such as the load during the lifting operation of the load receiving table is received, the support column is mainly fixed to the loading platform by the fastening means. The configuration can be maintained. Therefore, unlike the prior art, the vehicle is different from a vehicle having a load receiving platform lifting device in which a fastening means is supplementarily installed in a state in which a support column is fixed to a cargo bed, with a welding means as a main fixing means.

  According to a second aspect of the present invention, there is provided a cargo bed mounted on a chassis frame extending in the vehicle front-rear direction, struts erected on both right and left sides of the rear portion of the cargo bed, a erection member erected between the struts, and the strut It is a vehicle provided with the load receiving platform raising / lowering device which has a load receiving stand raised / lowered along, Comprising: The said construction member is being fixed by the fastening in the state through a rib with respect to the said chassis frame. Similarly, “fixed” here means that the construction member is fixed to the chassis frame mainly by the fastening means.

  2nd invention is good also as a structure which the said rib has a cargo bed contact part which contacts the said cargo bed, and the said fastening is made | formed by the said cargo bed contact part. The rib may have a frame contact portion that contacts the chassis frame, and the fastening may be performed by the frame contact portion.

  Further, in the above invention, the loading platform further has a shape in which corners on both the left and right sides of the rear part are cut out, and the column is erected at the corner, and is installed between the columns. It can also be set as the structure by which the constructed construction member was provided on the rear part of the said loading platform.

Since the loading platform lifting / lowering device according to the present invention uses a fastening means such as bolts to fix the loading platform and the support column, curing work or the like is unnecessary compared with the welding means, and greatly contributes to the suppression of the manufacturing process. be able to. In addition, since it can be fixed with a predetermined strength even if the material and thickness of the member to be fixed are changed, it can be applied to various vehicles. Furthermore, the strength is constant regardless of the skill level of the operator.
Moreover, since the load receiving platform lifting / lowering apparatus according to the present invention can also fix the erection member and the chassis frame using the fastening means, the same effect can be obtained.

(A) is a perspective view of the load receiving platform lifting apparatus according to the present embodiment, and (b) is a side view of the apparatus. (A) is a top view centering on the mounting member of the load receiving platform lifting apparatus according to the present embodiment, (b) is a rear view centering on the member, and (c) is a left side view illustrating the support column and the loading platform. It is. (A) is a plan view of the rib between the chassis frame and the mounting member according to the present embodiment, (b) is a rear view of the rib, (c) is a left side view of the rib, and (d) is the rib. FIG.

  An example of the load receiving table lifting apparatus 100 according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1A, the load receiving table lifting device 100 is provided behind the vehicle 1. The vehicle 1 has a loading platform 3 mounted on a chassis frame 2 extending in the front-rear direction. The load receiving platform lifting device 100 is supported by a pair of left and right columns 4 erected on the rear side of the loading platform 3, a slider 5 that is inserted into each column 4 and can be moved up and down, and a lower end of the slider 5. And a receiving platform 6. One end of a wire 7 is fixed to the slider 5. The wire 7 is stretched through the sheave 8 inside the support column 4, and the other end is fixed to a hydraulic cylinder (not shown) disposed inside the support column 4. That is, the slider 5 can move up and down using the expansion and contraction force of the hydraulic cylinder, and the load receiving platform 6 is configured to move up and down in a horizontal posture as shown in FIG. The operation configuration of the load receiving platform 6 is also known in Japanese Patent Application Laid-Open No. 2004-331630. In the present embodiment, the vehicle including the cargo receiving platform lifting / lowering device 100 is a “light vehicle” defined in the enforcement regulations of the Road Transport Vehicle Law.

  The load receiving table lifting apparatus 100 according to the present embodiment provided in the vehicle 1 is characterized by an attaching means for the vehicle 1, particularly a fixing means for the load receiving lift 100 for the load carrier 3 or the chassis frame 2. Hereinafter, this will be specifically described with reference to FIG.

  2A is a plan view showing the rear part of the vehicle 1, FIG. 2B is a rear view showing the rear part of the vehicle 1, and FIG. 2C is a left side view showing the rear part of the vehicle 1. FIG. In each figure, for convenience of explanation, the load receiving platform 6 and the slider 5 for raising and lowering the load receiving platform 6 are omitted.

  A cross plate 9 is installed between the left and right support columns 4 by welding. Both the column 4 and the cross plate 9 are fixed to the vehicle 1 by bolt fastening means 11 to 13 and 21 to 25. The bolt fastening means 11 to 13 are provided on both sides of the vehicle 1, but only the left side is shown as a representative example.

  The support column 4 includes a rib plate 10 and a first fastening means 11 and a second fastening means 12 of the bolt fastening means so as to fill rectangular cutouts 3a provided on the left and right at the rear part of the loading platform 3. 13 to the cargo bed 3.

  As shown in FIG. 2C, the rib plate 10 is a substantially L-shaped member in a side view, and is formed on the upper piece 10 a that is bent so as to come into contact with the back surface of the cargo bed 3 and the front surface of the column 4. It has two rear piece portions 10b and 10c that are bent so as to come into contact with each other. Three bolts and nuts first fastening means 11 are used for the upper piece 10a, and two bolts and nuts second fastening means 12 and 13 are used for the rear pieces 10b and 10c, respectively. As shown in the figure, the first fastening means 11 is provided near the front end of the rib 10, and the second fastening means 12, 13 are provided separately near the upper end and the lower end of the rib plate 10. Yes. The column 4 is fixed to the loading platform 3 by these fastening means 11 to 13, and the relative position between the loading platform 3 and the column 4 is kept constant even when the loading platform lifting device 100 is operated.

  In this embodiment, the thickness of the rib 10 serving as a connecting member to the support column 4 is 3.0 to 5.0 mm with respect to the thickness of the loading platform 3 of about 1.0 to 1.5 mm, and the load distribution according to both Are very different. The thickness of the loading platform 3 is set to contribute to the weight reduction of the vehicle 1, and the thickness of the rib 10 is set to have sufficient strength as a connecting member between the loading platform 3 and the support column 4. Since the load receiving platform elevating device 100 is used for loading and unloading large and small loads, various loads are applied to the joint portion between the support column 4 and the load loading platform 3. However, since the joint portion is bolted by the fastening means 11 to 13 described above, a stable joint strength can be obtained as compared with a welding means in which a difference in the skill of the operator easily leads to a difference in the joint strength. In particular, if the thickness of the members to be joined is different in the welding means, the thin member is welded earlier, but the thick member is likely to be insufficiently welded. Furthermore, when trying to weld in accordance with a thick member, the thin member may be melted more than necessary. As the difference in thickness increases, it becomes more difficult to obtain a stable bonding strength, but a stable bonding strength can always be easily obtained by employing the fastening means 11 to 13 as in this embodiment. In addition, although the loading platform 3, the support | pillar 4, and the rib plate 10 are all formed with the iron member, it is good also as a structure formed by different members, such as an aluminum member.

Next, the cross plate 9 is provided so as to partially cover a portion sandwiched between the cutout portions 3a of the loading platform 3, and the rib unit 30 and the third fastening means 21 of the bolt fastening means, Fastened to the cargo bed 3 by the 4 fastening means 22, the fifth fastening means 23, and the sixth fastening means 24. Further, the cross plate 9 is fastened to the cargo bed 3 also by the seventh fastening means 25. The rib unit 30 is in contact with the chassis frame 2, and the cross plate 9 is also supported by the chassis frame 2 via the rib unit 30.
As shown in FIG. 2B, the rib unit 30 is provided in a state where a plurality of rib plates are connected so as to surround the chassis frame 2 below the loading platform 3.

  The rib unit 30 is fastened to the loading platform 3 by four bolts and nuts third fastening means 21 and one bolt and nut fifth fastening means 23 at the outer portion in the vehicle width direction with respect to the chassis frame 2. Has been. The rib unit 30 is fastened to the loading platform 3 by a fourth fastening means 22 and a sixth fastening means 24 of one bolt and nut at an inner portion in the vehicle width direction with respect to the chassis frame 2. The rib unit 30 is in contact with the bottom surface of the chassis frame 2 as shown in FIG. This contact is in a state of being in close contact with the fastening means 21 to 24 described above, and the rib unit 30 is strongly fixed to the chassis frame 2 by being in close contact. Further, the third fastening means 21 and the fourth fastening means 22 are provided in a region sandwiched between the left and right support columns 4, and the fifth fastening means 23 and the sixth fastening means 24 are slightly forward of the vehicle. On the side. The “slightly deviated vehicle front side” is a range between the first fastening means 11 and the support column 4 in the vehicle front-rear direction as shown in FIG. The seventh bolt / nut seventh fastening means 25 is fastened to the cargo bed 3 at a position that is substantially constant between the left and right sixth fastening means 24.

  For any of the fastening means 21 to 25, the positions to be provided are not limited to those described above with respect to the above region, but are fastened on both sides of the chassis frame 4 and within or near the region sandwiched between the columns 4. It is desirable to be provided.

  Moreover, it is preferable that the 5th fastening means 23 and the 6th fastening means are installed in the mountain side part (part convex to the vertical direction upper side) with respect to the corrugated back surface in the loading platform 3. By being provided in the said part, even when a load etc. are mounted in the loading platform 3, sufficient intensity | strength can be acquired so that the thin loading platform 3 may not be bent even if the number of fastening means shown in figure.

  Next, the configuration of the rib unit 30 will be specifically described with reference to FIG. The rib unit 30 is provided on both the left and right sides of the vehicle 1, and the right rib unit 30 will be described as a representative example. 3A is a plan view of the rib unit 30, FIG. 3B is a rear view thereof, FIG. 3C is a left side view thereof, and FIG. 3D is a right side view thereof. The chassis frame 2 and the fastening means 21 to 24 are not shown.

  The rib unit 30 is configured as a unit by five rib plates 31 to 35, and the second rib 32 and the third rib 31 on the vehicle rear side with respect to the first rib 31 that covers both side surfaces and the bottom surface of the chassis frame 2. The rib 33 is welded, and the fourth rib 34 and the fifth rib 35 are welded on the front side of the vehicle.

  The first rib 31 is a plate material that is bent so as to extend in the vehicle front-rear direction and have a substantially U-shaped end surface. The first rib 31 includes a contact portion (hereinafter referred to as “SF contact portion”) 310 that contacts the bottom surface of the chassis frame 2, bent inner pieces 311 a and 311 b, and an outer piece 312. Have The inner pieces 311a and 311b are provided on the vehicle inner side (left side in the figure) and at both ends of the vehicle rear side and the vehicle rear side, respectively. The left and right chassis frames 2 are provided with a horizontal frame F extending in the vehicle width direction at the rear end of the vehicle, and the inner pieces 311a and 311b are provided so as to sandwich the horizontal frame F therebetween. Since the both pieces 311a and 311b are arranged in the front and rear of the horizontal frame F, the rib unit 30 does not move in the vehicle front-rear direction. On the other hand, an outer piece 312 is provided over the entire length of the SF contact portion 310 on the vehicle outer side (right side in the drawing). The inner pieces 311a and 311b are set lower than the outer pieces 312 in order to prevent interference with the muffler inside the chassis frame 2 and the muffler stay, but when there is no interference from the muffler or the like. May be the same height.

  The second rib 32 is provided outside the vehicle with respect to the first rib 31. As shown in FIG. 3 (b), the second rib 32 is bent in the horizontal direction with respect to the vertical piece 321 that is in contact with and welded to the outer piece 312 of the first rib 31. It has a horizontal piece 322 and two bracing pieces 323 for reinforcing and supporting the vertical piece 321 and the vertical piece 322. The horizontal piece 322 is provided with four through holes 21H for fastening the third fastening means 21.

  The third rib 33 is provided on the vehicle inner side with respect to the first rib 31. As shown in FIG. 3 (b), the third rib 33 has a vertical piece 331 that is welded in contact with the inner piece 311a on the rear side of the vehicle by the first rib 31, and a vehicle inner side and upper side from the vertical piece 331. And a horizontal piece portion 333 that is bent horizontally from the oblique piece portion 332. The horizontal piece portion 333 is provided with one through hole 22H for fastening the fourth fastening means 22.

  The 2nd rib 32 and the 3rd rib 33 are set as the magnitude | size in which the height of the mutual horizontal piece parts 322 and 333 corresponds. As shown in FIG. 3B, a spacer 3 b filling the space between the loading platform 3 and the chassis frame 2 is fixed to the loading platform 3 in advance on the second rib 32 and the third rib 33. Therefore, the horizontal piece portions 322 and 333 of the second rib 32 and the third rib 33 are in contact with the spacer 3b and fastened to the loading platform 3 using the fastening means 21 and 22 in the through holes 21H and 22H. ing. In the case where the vehicle 1 has an unnecessary configuration of the spacer 3b, the horizontal ribs 322 and 333 may be in contact with the back surface of the cargo bed 3 to be fastened to the second rib 32 and the third rib 33. .

  The fourth rib 34 is provided outside the vehicle with respect to the first rib 31, and has a vertical piece 341 and a horizontal piece 342 in the same manner as the second rib 32. However, there is one bracing piece part 343, the size of the horizontal piece part 342 being in contact with the back surface of the loading bed 3 because there is no spacer on the loading bed 3, and one through hole 23H. This is different from the second rib 32.

  The fifth rib 35 is provided on the vehicle inner side with respect to the first rib 31, and has a vertical piece 351, a slant piece 352, and a horizontal piece 353 similarly to the third rib 33. However, it differs from the third rib 33 in that the horizontal piece portion 353 is sized to contact the back surface of the loading platform 3.

  With the above configuration, the support column 4 and the cross plate 9 are fastened to the loading platform 3 or the chassis frame 2, and the loading platform lifting device 100 is fixed to the vehicle 1. Regarding these fastenings, curing work or the like is not necessary as compared with the case of using welding means. For this reason, if it is determined in the entire process of “fixing the cargo receiving table lifting device 100 to the vehicle 1”, the number of steps in the present embodiment using the fastening means is reduced.

  Further, since the cross plate 9 and the loading platform 3 are fastened through the rib unit 30 as described above, the same effect as that of the support column 4 can be obtained as compared with the case of the welding means. . The rib unit 30 is formed by unitizing a plurality of rib plates 31 to 35 in advance. In this unitized state, the chassis frame 2 and the cargo bed 3 are brought into contact with the back surfaces. A fastening means is not used for the SF contact portion 310 of the first rib 31, but a through hole for providing an eighth fastening means for one bolt and nut for fastening the rib unit 30 to the chassis frame 2. 26H is provided, and it is also possible to use the eighth fastening means for the through hole in order to increase the fixing force of the load receiving platform lifting / lowering apparatus 100 to the vehicle 1. In this case, the eighth fastening means may be used as positioning means in a state where the unitized rib unit 30 is in contact with the chassis frame 2. Such an effect as the positioning means is greatly useful in reducing the number of man-hours of the respective fastening means 21 to 25 in consideration of the fastening process performed under the vehicle 1.

  The abutment support between the rib unit 30 and the chassis frame 2 is configured to cover the bottom surface of the chassis frame 2 with the first ribs 31, but is fixed through bolts and nuts so as to cover only the side surfaces of the chassis frame 2. It is good also as a structure.

  In addition, when the fastening means is used, there is an effect that the maintainability with respect to secular change is simplified as compared with the welding means. Since the load receiving platform lifting / lowering device 100 is provided in a vehicle, it is affected by rainwater or muddy water, or by vibration or stone rebound during vehicle travel. For this reason, the above-described configuration of the fastening means has higher durability performance than the welding means, and even if rust or the like is generated, parts replacement and the like are simplified.

In this embodiment, the fastening means is used for both the fixing of the support column 4 and the loading platform 3 and the fixing of the cross plate 9 and the loading platform 3, but one of them is a fastening means and the other is a welding means. However, it can be applied because it contributes to the reduction of the total man-hours. Furthermore, although the load receiving platform lifting apparatus 100 is fixed to the vehicle 1 by the fastening means 11 to 13 and 21 to 24, it is not limited to the fact that all are fastening means. Either of them may be fixed by welding. Moreover, regarding the fixation between the cross plate 9 and the support column 4, a fastening means may be employed in addition to the welding means.

  Further, the third fastening means 21 to the sixth fastening means 24 are all configured to fasten the rib unit 30 to the cargo bed 3 portion on which the cross plate 9 is superimposed, but the chassis frame 2 has the cross plate 9 superimposed thereon. Since it has extended to the 3 parts of the loading platform which is not, it is good also as a structure by which the fastening by any of the fastening means 21-24 was performed in the loading platform 3 which has not overlapped.

  Regarding the configuration of the rib unit 30, the plurality of rib plates 31 to 35 are connected to each other. However, the rib unit 30 may be a single member formed by extrusion or the like. Further, the number of bolts and nuts, fastening locations, etc. can be changed as appropriate.

Although the load receiving platform elevating device 100 is fixed to the vehicle 1 by the fastening means 11 to 13 and 21 to 24, it is not limited to the fact that all are fastening means. Either of them may be fixed by welding. Also, the fastening means other than bolts and nuts may be used.
And about the vehicle 1, the same structure is applicable even if it is not only a light vehicle but various types and size.

  INDUSTRIAL APPLICATION This invention is useful with respect to all the vehicles by which the load receiving stand raising / lowering apparatus which raises / lowers a load receiving stand along a support | pillar and the load receiving stand raising / lowering apparatus are mounted.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Chassis frame 3 Loading platform 4 Strut 5 Slider 6 Loading platform 9 Cross plate (erection member)
DESCRIPTION OF SYMBOLS 10 Rib plate 11 1st fastening means 12 2nd fastening means 21 3rd fastening means 22 4th fastening means 23 5th fastening means 24 6th fastening means 30 Rib units 31-35 1st rib-5th rib 310 SF contact Part (frame contact part)
322, 333, 342, 353 Horizontal piece (load bed contact part)
3a Notch (loading platform)

Claims (5)

A vehicle equipped with a loading platform lifting device that has a loading platform mounted on a chassis frame extending in the longitudinal direction of the vehicle, columns that are fixed to the left and right sides of the rear portion of the loading platform, and a loading platform that is elevated along the column. There,
The vehicle provided with a cargo receiving platform lifting device, wherein the loading platform and the support column are fixed by fastening in a state through a rib. A loading platform mounted on a chassis frame extending in the vehicle front-rear direction, a column erected on both the left and right sides of the rear portion of the loading platform, a construction member constructed between the columns, and a load receiver that is raised and lowered along the column A vehicle equipped with a loading platform lifting device having a platform,
The vehicle provided with the load receiving platform lifting device, wherein the erection member is fixed to the chassis frame by fastening in a state via a rib. The rib has a loading platform abutting portion in contact with the loading platform,
The said fastening is made by the said loading platform contact part. The vehicle provided with the loading platform raising / lowering device of Claim 2. The rib has a frame contact portion that contacts the chassis frame,
The vehicle including the cargo receiving platform lifting device according to claim 2, wherein the fastening is performed at the frame contact portion. The cargo bed has a shape in which corners on both the left and right sides of the rear part are cut out,
The column is erected at the corner,
The vehicle provided with the load receiving platform elevating device according to any one of claims 1 to 4, wherein a mounting member provided between the columns is provided on a rear portion of the loading platform.

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