Mechanism for expanding and contracting side wall of load-carrying platform of vehicle transport trailer

Abstract

To provide an expansion and contraction mechanism of a side wall of a load-carrying platform of a trailer for transportation of a vehicle or the like which is very simple, rich in operability and convenience, and not inferior in strength or the like.SOLUTION: In this expanding / contracting mechanism of the side wall of the load-carrying platform of the trailer for transporting the vehicle or the like, expanding / contracting rails are arranged on both sides of the load-carrying platform part of the trailer for transporting the vehicle or the like, and the side walls are installed on both side end parts so as to be movable in the width direction, and the vehicle or the like having a different size can be reasonably loaded on the load-carrying platform part.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vehicle. Both This relates to an improvement to the expansion / contraction mechanism of the side walls of the loading platform of a transport trailer. [Background technology]

[0002] Traditionally, cars Both Prior art for mechanisms for expanding and contracting the side walls of a trailer bed includes the following. That is, Japanese Patent Application Laid-Open No. 2017-1579 (see Patent Document 1) discloses a sliding frame for mounting on the bed of a transport vehicle, characterized in that the length of the longitudinal frame is within the fore-and-aft length of the bed of the transport vehicle and the length of the widthwise frame is a rectangular frame body having a width dimension that allows it to be moved in the width direction of the bed, the rectangular frame body having a plurality of partition frames that divide the frame body at predetermined intervals in the longitudinal direction, and the back surface of the partition frames having rotational movement means such as wheels, rollers, rotating spheres, etc. that can slide the rectangular frame body in the width direction of the bed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-1579 Summary of the Invention [Problem to be solved by the invention]

[0004] The loading platform structure of the transport vehicle according to the conventional example includes a loading platform arranged on the running body, a loading platform frame erected around the outside of the loading platform, and a sliding frame body for mounting the loading platform. However, since the bed frame is erected around the exterior of the bed, when removing luggage from the bed surrounded by the bed frame, it is necessary to open the bed frames on the left, right, and rear sides, which requires a larger area for the bed frames and also creates the problem that opening the bed frames is time-consuming.

[0005] Therefore, the present invention is a vehicle that is very simple, has excellent operability and convenience, and is comparable in strength and other respects. Both The object of the present invention is to provide a mechanism for expanding and contracting the side walls of a loading platform of a transport trailer. [Means for solving the problem]

[0006] The present inventors have conducted extensive research into the above-mentioned problems and have completed the present invention, which has the following features.

[0007] The car of the present invention Both The expansion and contraction mechanism of the side walls of the loading platform of the transport trailer is Both A transport trailer comprising: tire holding frames with sidewall members at the top arranged on both sides of a bed portion of the transport trailer; tires mounted by axles within the sidewall members; a lifting mechanism for raising the tire holding frames to lower the bed portion; and a tire holding frame expansion / contraction mechanism for moving the tire holding frames outward when the tire holding frames are raised; and by raising the tire holding frames to lower the bed portion and operating the expansion / contraction mechanism to move the tire holding frames outward when the tire holding frames are raised, it is possible to accommodate tires of different sizes. Both It is characterized by being able to be easily mounted on the loading platform.

[0008] The car of the present invention Both The expansion and contraction mechanism of the side walls of the loading platform of the transport trailer is Both A transport trailer comprising: tire holding frames with sidewall members at the top arranged on both sides of a bed portion of the transport trailer; tires mounted by axles within the sidewall members; a lifting mechanism that raises the tires via the axles to lower the bed portion; and a tire holding frame expansion / contraction mechanism that moves the tire holding frames outward when the tire holding frames are raised; and by raising the tires to lower the bed portion and operating the expansion / contraction mechanism to move the tire holding frames outward when the tire holding frames are raised, it is possible to carry tires of different sizes. BothIt is characterized by being able to be easily mounted on the loading platform.

[0009] The car of the present invention Both In the expansion / contraction mechanism for the side walls of the bed of a transport trailer, the expansion / contraction mechanism for the tire holding frame is characterized in that it has a number of slide arms arranged horizontally from the left and right tire holding frames and crossing support frames provided in the bed portion, and the tire holding frame can be expanded and contracted by moving these slide arms back and forth.

[0010] The car of the present invention Both In the expansion / contraction mechanism for the side walls of the bed of a transport trailer, the expansion / contraction mechanism for the tire holding frame includes telescopic arms arranged horizontally from the left and right tire holding frames and on both sides of a support frame provided in the bed portion, and the tire holding frame can be expanded / contracted by moving these telescopic arms back and forth, and the tire holding frame can be raised and lowered by lifting arms attached to both sides of the tire holding frame, and then the tire holding frame can be expanded / contracted by moving the telescopic arms back and forth.

[0011] The car of the present invention Both In the expansion / contraction mechanism for the side walls of the bed of a transport trailer, the expansion / contraction mechanism for the tire holding frame has telescopic arms arranged horizontally from the left and right tire holding frames and on both sides of a support frame provided in the bed portion, and the tire holding frame can be expanded / contracted by moving these telescopic arms back and forth, and the tire can be raised and lowered by a lifting arm attached to the axle of the tire, and then the tire holding frame can be expanded / contracted by moving the telescopic arms back and forth. [Effects of the Invention]

[0012] The remarkable effects of the present invention are as follows. (a) By storing tires via axles on each tire holding frame, there is no need to connect the tires on the left and right sides of the loading platform with axles, and the loading platform does not become uneven even when the loading platform is lowered, so vehicles can be loaded and unloaded onto the loading platform very smoothly, efficiently, and safely.

[0013] (a) Car Both A transport trailer is provided with expansion / contraction rails on both sides of the loading platform of the transport trailer, and side wall members are attached to both ends of the rails to allow movement in the width direction, and is suitable for transporting vehicles of different sizes. Both Even if there is a problem, it can be properly and effortlessly mounted on the loading platform, and the structure is very simple, allowing it to be driven efficiently, making it possible to provide it as an easy-to-operate and low-cost product.

[0014] (c) Since the lifting mechanism itself does not require contact with the ground, the loading platform can be raised and lowered safely and accurately regardless of the ground conditions.

[0015] (e) Since the lifting mechanism itself does not require contact with the ground, the loading platform can be raised and lowered regardless of whether the pair of left and right tire holding frames or side wall members are in a narrowed or widened state. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic plan view showing an embodiment of a mechanism for expanding and contracting a side wall of a bed of a trailer for transporting a vehicle according to the present invention; [Figure 2] FIG. [Figure 3] 10 is a schematic plan view showing a state in which the width of the pair of left and right side wall members is expanded or contracted. FIG. [Figure 4] FIG. [Figure 5]1 shows an explanation of the operation of the expansion / contraction mechanism for the side walls of the loading platform of a vehicle transport trailer of the present invention, where (a) is a schematic perspective view of the state in which a backing plate is about to be inserted into the lower part of the loading platform, (b) is a schematic perspective view of the state in which the axle is raised and the loading platform is lowered relatively, (c) is a schematic perspective view of the state in which the width between a pair of left and right axles and side wall members is expanded / contracted, and (d) is a schematic perspective view of the state in which the axle is lowered, i.e., the loading platform is raised relatively, and the backing plate is about to be removed. [Figure 6] FIG. 2 is a schematic plan view showing a second embodiment of a vehicle transport trailer according to the present invention. [Figure 7] FIG. [Figure 8] 10 is a schematic plan view showing a state in which the width of the pair of left and right side wall members is expanded or contracted. FIG. [Figure 9] FIG. 10 is a schematic perspective view showing an expansion / contraction mechanism for the side walls of the loading platform of a third embodiment of a trailer for transporting vehicles according to the present invention. [Figure 10] FIG. 2 is a schematic perspective view of the axle in a raised position. [Figure 11] 10 is a schematic perspective view of the state in which the width between the pair of left and right axles and the side wall members is expanded or contracted. FIG. [Figure 12] FIG. 10 is a schematic perspective view showing another embodiment of the lifting mechanism for a vehicle transport trailer of the present invention, illustrating a tire axle lifting means provided on a tire holding frame. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, the embodiments of the present invention will be described in detail, but the present invention is not limited to the following. Both The mechanism for expanding and contracting the side walls of the bed of a transport trailer has the following structure.

[0018] FIG. 1 shows a vehicle according to the present invention. Both FIG. 1 is a schematic plan view showing an embodiment of an expansion / contraction mechanism for a side wall of a bed of a transport trailer, and FIG. 2 is a schematic perspective view thereof. In Figures 1 and 2, Both The transport trailer 11 has a loading platform 12. BothThe transport trailer 11 includes a pair of left and right tire holding frames 13 provided in appropriate positions on the loading platform portion 12. Furthermore, the tire holding frames 13 include sidewall members 13a at their upper portions. In addition, any number of tires 14 are attached to each of the pair of left and right sidewall members 13a via axles 14a, and in the drawing, a two-axle type with two tires attached, one in front and one in back, is shown. Of course, the tire 14 may be not only the two-axle type shown in the drawing, but also a single-axle type with one tire or a three-axle type with three tires. It is also desirable to cover the loading platform portion 12 sandwiched between the tire holding frames 13 with a floor panel (not shown).

[0019] The tire support frame 13 is attached to the loading platform portion 12 via the sidewall expansion / contraction mechanism 15 so as to be movable in the width direction of the loading platform portion 12. In the drawing, the sidewall expansion / contraction mechanism 15 is composed of one or more expandable / contractable rails 21a, and the tire support frame 13 is attached to the loading platform portion 12 via the expandable / contraction rails 21a. In the drawing, the sidewall expansion / contraction mechanism 15 is shown with three expandable / contraction rails 21a on each side, but the number of expandable / contraction rails 21a is not limited to the three shown, and any number of rails may be used. In this way, the tire support frame 13 is movable in the width direction of the loading platform portion 12 via the sidewall expansion / contraction mechanism 15, so that it can be properly and effortlessly mounted on the loading platform portion 12 regardless of the size of the vehicle to be loaded.

[0020] FIG. 3 shows the vehicle of the present invention. Both FIG. 4 is a schematic plan view showing a state in which an expansion / contraction rail 21a is expanded in an expansion / contraction mechanism for a side wall of a loading platform of a transport trailer, and FIG. 5 is a schematic perspective view thereof. As shown in Figures 3 and 4, the car BothIn the transport trailer 11, the expansion / contraction rails 21a extend outward in the width direction of the loading platform 12 sandwiched between the tire support frames 13, so that the tire support frames 13 and the side wall members 13a also extend outward in the width direction of the loading platform, widening the width between the pair of left and right side wall members 13a. Both Even if there is such a thing, it can be properly and effortlessly loaded onto the loading platform portion 12.

[0021] The expansion / contraction rail 21a functions very efficiently if it is fixed integrally to the tire holding frame 13 including the side wall member 13a. In other words, if the expansion / contraction rail 21a is cylindrical and can be moved back and forth, the expansion / contraction rail 21a can also be used as a frame constituting the loading platform portion 12, and the expansion / contraction rail 21a can be very easily expanded to accommodate a wide range of luggage. The expansion / contraction rail 21a can be driven more quickly by incorporating a hydraulic mechanism, an electric motor, or the like.

[0022] The car Both The transport trailer 11 further includes a lifting mechanism (not shown) that raises the tire holding frame 13 and lowers the loading platform. By doing so, when the sidewall expanding / contracting mechanism 15 operates, the tire holding frame 13 is raised and lowered, thereby controlling whether the tire is in contact with or not in contact with the ground, and the width between the tire holding frame 13 and the sidewall member 13a can be expanded and contracted very efficiently.

[0023] FIG. 5 shows the vehicle of the present invention. Both 1 is a diagram illustrating the operation of the mechanism for expanding and contracting the side walls of the loading platform of a transport trailer. For the purpose of illustrating the drawings, the first embodiment will be described. BothIn the expansion / contraction mechanism for the tire holding frame 13 and side wall member 13a provided at the rear of the loading platform portion 12 of the transport trailer 11, Figure 5(a) is a schematic oblique view of the loading platform portion 12 in a raised state, in which the width between the pair of left and right tire holding frames 13 and side wall members 13a attached to the rear of the loading platform portion 12 of the transport trailer 11 is at its narrowest, and the tire holding frame 13 is stored inside the width of the loading platform portion 12. In this condition, the car is still Both The tires 14 of the transport trailer 11 are in a state of lifting the loading platform 12 of the transport trailer 11. A backing plate 61 may be inserted under the loading platform 12 in case the loading platform 12 is lowered.

[0024] 5(b), the tire support frame 13 is raised by the lifting mechanism (not shown), i.e., the loading platform 12 is lowered relatively, and the rear frame 62 at the rear end of the loading platform portion 12 is rotated and collapsed onto the ground. At this time, the tire support frame 13 and the tire 14 are not in contact with the ground.

[0025] 5(c), when loading a vehicle to be loaded onto the loading platform portion 12, if the size of the vehicle to be loaded is large, the side wall expansion / contraction mechanism 15 is operated to expand the width between the tire holding frame 13 and the side wall member 13a. In this way, the vehicle can be loaded onto the loading platform portion 12 extremely efficiently, regardless of the size of the vehicle to be loaded.

[0026] Finally, as shown in FIG. 5(d), the tire holding frame 13 is lowered by operating the lifting mechanism (not shown), that is, the loading platform portion 12 is relatively raised. At this time, the backing plate 61 is pulled out and the rear frame 62 is rotated and raised. Both The vehicles to be loaded may be transported in a transport trailer 11.

[0027] At this time, the width between the tire holding frame 13 and the side wall member 13a is left wide, but even in this widened state, the vehicle can be mounted without any problems. Both The transport trailer 11 can be driven and moved, and depending on road conditions or other circumstances, the width between the tire holding frame 13 and the side wall member 13a can be reduced, and then the tire holding frame 13 can be lowered to install the tire 14, and then the vehicle can be driven. Both Driving movement of the transport trailer 11 may commence. The loading and unloading process of the vehicle is most efficient if it is carried out in the order shown in Figure 5(d), (c), (b), and (a).

[0028] FIG. 6 shows the vehicle of the present invention. Both FIG. 7 is a schematic plan view showing a second embodiment of an expansion / contraction mechanism for a side wall of a bed of a transport trailer, and FIG. In Figures 6 and 7, Both The transport trailer 31 has a loading platform 32. Both The transport trailer 31 includes a pair of left and right tire holding frames 33 provided in appropriate positions on the loading platform portion 32. The tire holding frames 33 further include sidewall members 33a. Additionally, any number of tires 34 can be attached to each of the pair of left and right sidewall members 13a via axles 34a, and in the drawing, a two-axle type with two tires attached, one in front and one in back, is shown. Of course, the tire 34 may be not only the two-axle type shown in the drawing, but also a single-axle type with one tire or a three-axle type with three tires. It is also desirable to cover the loading platform portion 32 sandwiched between the tire holding frames 33 with a floor panel (not shown).

[0029] Incidentally, the tire holding frame 33 is attached to the loading platform portion 32 via a sidewall expansion / contraction mechanism 35 so as to be movable back and forth in the width direction of the loading platform portion 32. The sidewall expansion / contraction mechanism 35 is made up of one or more expansion / contraction rails 41a that can be moved back and forth, and the tire holding frame 33 is attached to the loading platform portion 32 via the expansion / contraction rails 41a. The tire holding frame 33 is movable appropriately in the width direction of the loading platform portion 32 via the sidewall expansion / contraction mechanism 35, so it can be properly and effortlessly mounted on the loading platform portion 32 regardless of the size of the vehicle to be loaded.

[0030] FIG. 8 shows the vehicle of the present invention. Both 10 is a schematic plan view showing a state in which an expansion / contraction rail 41a is pushed open in the expansion / contraction mechanism for the side walls of the loading platform of the second embodiment of the transport trailer. FIG. As shown in Figure 8, the car Both In the transport trailer 31, the expansion / contraction rails 41a extend outward in the width direction of the loading platform portion 32 sandwiched between the tire holding frames 33, so that the tire holding frames 33 and the side wall members 33a also extend outward in the width direction of the loading platform portion, and the width between the pair of left and right side wall members 33a increases. Both Even if there is such a thing, it can be properly and effortlessly loaded onto the loading platform portion 32.

[0031] The expansion / contraction rail 41a functions very efficiently if it is fixed integrally to the tire holding frame 33 including the side wall member 33a. In other words, if the expansion / contraction rail 41a is cylindrical and movable, the expansion / contraction rail 41a can also be used as a frame constituting the loading platform portion 32, and the expansion / contraction rail 41a can be very easily expanded to accommodate a wide range of luggage. The expansion / contraction rail 41a can be driven more quickly by incorporating a hydraulic mechanism, an electric motor, or the like.

[0032] The car Both The transport trailer 31 further includes a lifting mechanism (not shown) for the tire holding frame 33. In this way, when the side wall expanding / contracting mechanism 35 is operated, the tire holding frame 33 is lifted / lowered, thereby controlling whether the tire is in contact with or not in contact with the ground, and the width between the tire holding frame 33 and the side wall member 33a can be expanded / contracted very efficiently.

[0033] FIG. 9 shows the vehicle of the present invention. Both FIG. 10 is a schematic perspective view showing the state in which the lifting mechanism is operated to raise the tire holding frame; and FIG. 11 is a schematic perspective view showing the state in which the width of the pair of left and right tire holding frames is expanded. In Figures 9 to 11, Both The transport trailer 71 has a loading platform 72. Both The transport trailer 71 includes a pair of left and right tire holding frames 73 provided at appropriate positions on the loading platform portion 72. The tire holding frames 73 further include sidewall members 73a. In addition, any number of tires 74 can be attached to each of the pair of left and right tire holding frames 73 via axles 74a, and in the figure, a two-axle type with two pairs of tires attached, one at the front and one at the rear, is shown. Of course, the tire 74 may not only be the two-axle type shown in the figure, but may also be a one-axle type with one tire or a three-axle type with three tires. It is also desirable to cover the loading platform portion 72 sandwiched between the tire holding frames 73 with a floor panel (not shown).

[0034] Incidentally, the tire holding frame 73 is attached to the loading platform portion 72 via a sidewall expansion / contraction mechanism 75 so as to be movable back and forth in the width direction of the loading platform portion 72. The sidewall expansion / contraction mechanism 75 is made up of one or more expansion / contraction rails 81a that can be moved back and forth, and the tire holding frame 73 is attached to the loading platform portion 72 via the expansion / contraction rails 81a. The tire holding frame 73 is movable appropriately in the width direction of the loading platform portion 72 via the sidewall expansion / contraction mechanism 75, so it can be properly and effortlessly mounted on the loading platform portion 72 regardless of the size of the vehicle to be loaded.

[0035] The tire holding frame 73 also includes a lifting mechanism 77. The lifting mechanism 77 is made up of one or more lifting rails 77a that can be raised and lowered, the tire holding frame 73 is connected to the loading platform portion 72 via the lifting rails 77a, and operation of the lifting mechanism 77 causes the tire holding frame 73 and the loading platform portion 72 to move up and down relative to each other. In this way, the lifting mechanism 77 can adjust whether the tires are in contact with the ground or not, so that the width between the pair of left and right tire holding frames 73 can be expanded and contracted smoothly and efficiently.

[0036] FIG. 9 shows a state in which the width between the pair of left and right tire holding frames 73 is narrowed, when the vehicle to be loaded is not loaded, or when the vehicle of the present invention is not loaded. Both This configuration can be adopted depending on road conditions and other circumstances when the transport trailer 71 is driven.

[0037] FIG. 10 shows a state in which the tire holding frame 73 is raised, that is, the loading platform portion 72 is lowered relatively, to load or unload vehicles.

[0038] FIG. 11 shows a state in which the space between the pair of left and right tire holding frames 73 is widened by using the side wall expansion / contraction mechanism 75 when the target vehicle is large when loading or unloading the target vehicle onto or from the loading platform. Both Even if there is such a thing, it can be properly and effortlessly loaded onto the loading platform portion 72.

[0039] FIG. 12 shows the vehicle of the present invention. Both 10 shows another embodiment of a mechanism for lifting and lowering the bed of a transport trailer. In the above Figures 1 to 11, the lifting mechanism has been described as a mechanism for raising and lowering the tire holding frame, but of course, this is not limited to this. For example, as shown in Figure 12, a tire stored in the tire holding frame via an axle can be raised and lowered using a means for raising and lowering the axle, thereby causing the loading platform portion to rise and fall relatively. In Figure 12, by mounting a lifting means 92 (air suspension in the figure) on the upper surface of the tire holding frame as a lifting mechanism 91, the axle can be raised and lowered using the lifting means 92. As described above, the vehicle of the present invention Both The mechanism for expanding and contracting the side walls of the bed of a transport trailer can be operated very simply, and by using a lifting mechanism, the expansion and contraction position can be adjusted very easily. [Industrial Applicability]

[0040] The car of the present invention Both The tire holding frame and sidewall member expansion / contraction mechanism for the bed of a transport trailer has a very simple structure, can be driven efficiently, is easy to operate, and can be provided at low cost. [Explanation of symbols]

[0041] 11 cars Both Transport trailer 12 Cargo area 13 Tire holding frame 13a Side wall member 14 Tires 14a axle 15. Expansion / contraction mechanism 21a Extension rail 31 car Both Transport trailer 32 Cargo area 33 Tire holding frame 33a Side wall member 34 Tires 34a axle 35 Expansion / contraction mechanism 61 Backing plate 62 Rear frame 71 car Both Transport trailer 72 Cargo area 73a Side wall member 74 Tires 75 Scaling mechanism 77 Lifting mechanism 77a Lifting rail 81a Extension rail

Claims

1. A trailer for transporting vehicles, etc. tire support frames disposed on both sides of the bed portion of the transport trailer, and tires mounted in the tire support frames by axles; a lifting mechanism that lifts the tire holding frame and lowers the loading platform; a tire holding frame expansion / contraction mechanism that moves the tire holding frame outward when the tire holding frame is raised; It is equipped with This mechanism for expanding and contracting the side walls of the bed of a trailer for transporting vehicles, etc., is characterized in that the tire holding frame is raised to lower the bed portion, and the expansion and contraction mechanism is operated to move the tire holding frame outward when the tire holding frame is raised, thereby making it possible to easily load vehicles, etc. of different sizes onto the bed portion.

2. A trailer for transporting vehicles, etc. tire support frames disposed on both sides of the bed portion of the transport trailer, and tires mounted in the tire support frames by axles; a lifting mechanism that lifts the tire via the axle to lower the loading platform; a tire holding frame expansion / contraction mechanism that moves the tire holding frame outward when the tire holding frame is raised; It is equipped with This mechanism for expanding and contracting the side walls of the bed of a trailer for transporting vehicles, etc., is characterized in that it allows vehicles of different sizes to be easily loaded onto the bed portion by raising the tire to lower the bed portion and operating the expansion and contraction mechanism to move the tire holding frame outward when the tire holding frame is raised.

3. 2. A mechanism for expanding and contracting the side walls of a trailer bed for transporting vehicles, etc., as described in claim 1, characterized in that the tire holding frame expansion and contraction mechanism has a number of slide arms arranged horizontally from the left and right tire holding frames and crossing a support frame provided in the bed portion, and the tire holding frames can be expanded and contracted by moving these slide arms back and forth.

4. The tire holding frame expansion / contraction mechanism includes telescopic arms that are arranged horizontally from the left and right tire holding frames and on both sides of a support frame provided in the loading platform portion, and the tire holding frame can be expanded and contracted by moving the telescopic arms back and forth; 2. The mechanism for expanding and contracting the side walls of a loading platform of a trailer for transporting vehicles, etc., as described in claim 1, characterized in that the tire holding frame can be raised and lowered by lifting arms attached to both sides of the tire holding frame, and the tire holding frame can be expanded and contracted by moving the telescopic arms back and forth.

5. The tire holding frame expansion / contraction mechanism includes telescopic arms that are arranged horizontally from the left and right tire holding frames and on both sides of a support frame provided in the loading platform portion, and the tire holding frame can be expanded and contracted by moving the telescopic arms back and forth; 3. The mechanism for expanding and contracting the side wall of a trailer bed for transporting vehicles, etc., as described in claim 2, characterized in that the tire is raised and lowered by a lifting arm attached to the axle of the tire, and the tire holding frame is expanded and contracted by moving the telescopic arm back and forth.

Images