Platform for transport vehicle and transport vehicle equipped with same

Abstract

To provide a carrier platform equipped with a tilting aid that can mechanically assist the tilting of a floor tilting support device, and a carrier platform equipped with the carrier platform. [Solution] A loading platform (1) for a transport vehicle that transports plate materials at an incline, with a portion of the floor (2) of the loading platform (1) being rotatable, and a mechanical tilting aid (10) and a floor tilting support device (20) that maintains the inclination of the floor (3) beneath the rotatable floor (3), the mechanical tilting aid (10) being a pair of gas springs, and the floor tilting support device (20) including a spring cylinder, a tilting member, and a link mechanism that engages with the piston rod of the spring cylinder and the tilting member, and the link mechanism changes the tilt angle of the tilting member according to the advancement and retreat of the piston rod.

Description

[Technical Field]

[0001] This invention relates to a platform for a transport vehicle and a transport vehicle equipped with the same. More specifically, it relates to a platform for a transport vehicle and a transport vehicle equipped with the same, in which a portion of the platform floor can be easily tilted. [Background technology]

[0002] Recently, as buildings and condominiums have become larger, there have been increasing opportunities to transport wide boards and the like by trucks.

[0003] To address this situation, the applicant has already made the following proposal.

[0004] That is, as shown in FIG. 10, a platform 100 for a transport vehicle for transporting plate materials at an incline is proposed, in which a portion of the floor of the platform 100 is rotatable, and a floor inclination support device 110 is provided under the rotatable floor for maintaining the inclination of the floor, and the floor inclination support device 110 includes a coil spring cylinder 111, an inclination member 112, and a link mechanism 113 engaged with the inclination member 112 (see Patent Document 1).

[0005] However, in the above proposal, a floor tilting support device 110 is used to tilt a part of the floor, but since the tilting force is insufficient, the tilting is assisted by a crane or the like. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2022-121979 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0007] The present invention was developed in consideration of the problems of the prior art, and aims to provide a platform for a transport vehicle equipped with a tilting aid that can mechanically assist the tilting of a floor tilting support device, and also to provide a transport vehicle equipped with such a platform. [Means for solving the problem]

[0008] The vehicle loading platform of the present invention is a loading platform for a vehicle that transports plate materials at an incline, and has a portion of the floor of the platform that is rotatable. Under the rotatable floor, there is provided a mechanical tilting aid and a floor tilting support device that tilts the floor and maintains that tilt. The mechanical tilting aid is a pair of gas springs, and the floor tilting support device includes a spring cylinder, a tilting member, and a link mechanism that engages with the piston rod of the spring cylinder and the tilting member, and the link mechanism changes the tilt angle of the tilting member in response to the advancement and retreat of the piston rod.

[0009] In a preferred embodiment of the present invention, the gas spring is disposed at an appropriate position on the rear surface of a rotatable floor.

[0010] In another preferred embodiment of the present invention, the tilting member has a rolling member at its tip. In this case, it is more preferable that the rotatable floor has a contact plate in the rolling range of the rolling member.

[0011] In yet another preferred embodiment of the present invention, a rotatable stopper is provided to prevent the tiltable floor from falling. In this case, it is more preferable that the rotatable floor has a stopper receiving portion, and it is also preferable that the stopper has guide members formed by protruding from both sides of the tip end, and that the stopper receiving portion has guide edges on both sides that guide the guide members.

[0012] The carrier of the present invention is used for carriers such as trailers and trucks. [Effects of the Invention]

[0013] The platform for a transport vehicle of the present invention is constructed as described above, and therefore has the excellent effect of allowing the inclined floor to be easily tilted.

[0014] In a preferred embodiment of the carrier for a transport vehicle of the present invention, a stopper is provided, which has the excellent effect of preventing the inclined floor from descending unexpectedly. [Brief explanation of the drawings]

[0015] [Figure 1] 1A and 1B are schematic diagrams of a transport vehicle equipped with a transport vehicle loading platform according to one embodiment of the present invention, in which FIG. 1A shows the state in which the inclined floor is stored in the storage section, and FIG. 1B shows the state in which the inclined floor is inclined. [Figure 2] This is a two-sided view of the state in which half of the floor of the same loading platform is tilted at a predetermined angle by an inclined gas spring, (a) showing a front view and (b) showing a side view. [Figure 3] FIG. 2 is a schematic diagram of the floor inclination support device of the same embodiment. [Figure 4] FIG. 2 is a schematic diagram of a link mechanism of the device. [Figure 5] This is a more concrete example of the basic form of the link mechanism of the device, and is an image diagram of the state in which the inclined member is laid horizontally. [Figure 6] This is a more specific example of the basic form of the link mechanism of the device, and is an image diagram of the state in which the tilting member is tilted to a certain extent. [Figure 7] This is a more concrete example of the basic form of the link mechanism of the device, and is an image diagram of the state in which the inclination member is at its maximum inclination. [Figure 8] 1A and 1B are schematic diagrams of a stopper, in which FIG. 1A is a plan view, FIG. 1B is a side view, FIG. 1C is a plan view of a modified example, and FIG. 1D is a side view thereof. [Figure 9] 1A and 1B are schematic diagrams of the main parts of the underside of the inclined floor, where FIG. 1A shows a plan view and FIG. 1B shows a detailed view of the stopper receiving portion. [Figure 10]1 is a schematic diagram of a tilt support device for a transporter proposed in Patent Document 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, the present invention will be described based on one embodiment with reference to the accompanying drawings, but the present invention is not limited to this embodiment.

[0017] 1 is a schematic diagram showing a transporter T equipped with a transporter platform 1 according to one embodiment of the present invention. In this embodiment, the transporter is, for example, a trailer or a truck.

[0018] As shown in Figure 1, the transport vehicle loading platform 1 is equipped with a floor tilt support device 20 having a mechanical tilt assisting device 10, and approximately half of the floor 2 is made tiltable. The tiltable floor (hereinafter referred to as the tilting floor in this specification) 3 is tilted to a predetermined angle, for example 60 degrees, by the floor tilt support device 20 with the assistance of the mechanical tilt assisting device 10, and the tilt is maintained. The transport vehicle loading platform 1 also has an appropriate number of stoppers (see Figure 8) to assist the floor tilt support device 20 in maintaining the tilt.

[0019] As shown in FIG. 2, the mechanical tilting aid 10 is configured as a pair of gas springs 11, that is, a right gas spring 11R and a left gas spring 11L.

[0020] The base end of the gas spring 11 on the cylinder side is fixed to an appropriate position on the back surface of the inclined floor 3, for example, approximately in the center of the side end, by a standard method, and the tip of the piston rod side is fixed to an appropriate position inside the inclined floor storage section 4 in which the inclined floor 3 is stored, for example, to the inner side, by a standard method. In this case, it is preferable that the base end of the gas spring 11 on the cylinder side be fixed to a reinforcing member (not shown) that reinforces the inclined floor 3.

[0021] Here, both gas springs 11R and 11L have the same configuration.

[0022] 3, the floor inclination support device 20 includes a coil spring cylinder 21, a tilting member 22, and a link mechanism 23 driven by the coil spring cylinder 21 that adjusts the tilt angle of the tilting member 22, and is held by a holding member (not shown) at an appropriate position on the carriage frame (not shown) of the transport vehicle platform 1, for example, at an intermediate position below the tilting floor 3. Note that the holding member can have any of various known structures as appropriate, and there are no particular limitations on its configuration.

[0023] The inclination member 22 is composed of a right inclination member divided body 22A and a left inclination member divided body 22B.

[0024] Here, the terms left and right in this specification refer to the case when viewed from the coil spring cylinder 21 side.

[0025] 4 shows a basic form of the link mechanism 23 driven by the coil spring cylinder 21. The link mechanism 23 tilts the tilting member 22 from a horizontally laid state to a predetermined angle and stands it up by the forward and backward movement of the piston rod 21a. In the illustrated example, the tilting member 22 is horizontal when the piston rod 21a is advanced, and tilts at a predetermined angle (maximum tilt angle) when the piston rod 21a is fully retracted.

[0026] As shown in FIG. 5, the basic form of the link mechanism 23 includes a first link 24 and a second link 25. One end of the first link 24 is pin-connected to the tip of the piston rod 21a, and the other end is pin-connected to the second link 25. The second link 25 includes a lower member 25a and a horizontal member 25b integrated with the lower member 25a. The lower end of the lower member 25a is pin-connected to one end of the first link 24, and the upper end is fixed to an appropriate position, for example, the center, of the horizontal member 25b. Both ends of the horizontal member 25b are rotatably supported by bearings 26, 26. Both ends of the horizontal member 25b are raised to form joints 25c for the inclined member 22. The lower end of the inclined member 22 is joined to joints 25c, for example, with bolts and nuts. A rolling member 22a is disposed at the upper end of each of the inclined members 22A and 22B.

[0027] Next, with reference to FIG. 4, the operation of tilting the tilting floor 3 with the assistance of the mechanical tilting aid 10 via the link mechanism 23 of the spring cylinder 21 of the floor tilting support device 20 will be described.

[0028] When the coil spring cylinder 21 is activated, the piston rod of the gas spring 11 and the coil of the coil spring cylinder 21 expand, causing the piston rod 21a to retract. The first link 24 of the link mechanism 23 then retracts as the piston rod 21a retracts. This retraction of the first link 24 pulls the second link 25 toward the coil spring cylinder 21, causing the horizontal member 25 to rotate in a direction that raises the inclined member 22, specifically the right-side inclined-member segment 22A and the left-side inclined-member segment 22B. Accordingly, the rolling member 22a rolls while rising on the underside of the inclined floor 3. When the inclination of the inclined floor 3 reaches a predetermined angle, the coil spring cylinder 21 is stopped.

[0029] The above series of operations completes the tilting operation of the tilting floor 3. After this, the stopper 30 is set manually.

[0030] To return the inclined floor 3 to its original state, the above steps are generally reversed.

[0031] 5 to 7 show examples of more specific link mechanism 23. FIG.

[0032] The embodied link mechanism (hereinafter referred to as the embodied link mechanism) 50 includes a coil spring cylinder 51 having a piston rod 51a, a first link 52, and a second link 53, as shown in Figures 5 to 7.

[0033] The base end of the first link 52 is pin-connected to the tip of the piston rod 51a, and the tip is pin-connected to the lower end of a lower member 53a of the second link 53. More specifically, the first link 52 is made of two plates glued together, and the base end is formed into a modified Y-shape so as to sandwich the tip of the piston rod 51a. Slide members 54 are disposed on both ends of the pin that connects the tip of the piston rod 51a to the base end of the first link 52, and the slide members 54 slide on guide plates 55 disposed on both sides so as to cover the range of movement of the tip of the piston rod 51a, thereby facilitating smooth forward and backward movement of the piston rod 51a.

[0034] The second link 53 includes a lower member 53a and a horizontal member 53b that is integrated with the lower member 53a. The lower member 53a is a divided body made up of two plates, each of which is fixed to the horizontal member 53b, for example, by welding. As described above, the lower end of the lower member 53a is pin-connected to the tip of the first link 52. Here, to ensure smooth rotation of the lower member 53a, a bearing 56 is interposed between both divided bodies and the tip of the first link 52.

[0035] Both ends of the horizontal member 53b are rotatably held by bearings 57, and a joint 58 is formed at each end of the horizontal member 53b that protrudes from the bearings 57. The lower end of the inclined member 12 is joined to each joint 58 with bolts and nuts. That is, the lower end of the right-side inclined-member segment 12A is joined to the right-side joint 58, and the lower end of the left-side inclined-member segment 12B is joined to the left-side joint 58.

[0036] Figure 8 shows stopper 30. Stoppers 30 are used to prevent the inclined floor 3, whose inclination is maintained by inclination member 22, from suddenly falling, and an appropriate number of stoppers, for example five, are provided at appropriate intervals. Stopper 30 has a body 31 made of a square pipe, a cushion 32 provided at the tip of body 31, a rotating base plate 33 provided so as to protrude from the lower end of body 31, and a pair of handles 34 provided on the upper surface of body 31. In addition, stopper receiving portion 5 is provided at a position on the underside of inclined floor 3 corresponding to the position where the tip of stopper 30 abuts (see Figure 8).

[0037] The cushion 32 is made of synthetic resin. Note that the cushion 32 is provided as needed, and is not necessarily provided.

[0038] The rotating base plate 33 is formed, for example, in a semicircular shape so as not to interfere with the rotation of the stopper 30. A through-hole 33a for inserting a rotation shaft (not shown) is formed at the rotation center of the rotating base plate 33. The rotation shaft has sufficient strength to prepare for the accidental fall of the inclined floor 3, and is, for example, a shaft member having a diameter of 30 mm.

[0039] The stopper 30 configured in this manner is stored in a horizontal position in the stopper storage section 6 arranged under the inclined floor 3, with the rotating shaft inserted through the through hole 33a (see Figure 8(b)).

[0040] The configuration of the lower end of the stopper 30 is not limited to the above, and various modifications are possible. For example, the configurations shown in FIGS. 8(c) and 8(d) are also possible.

[0041] That is, as shown in FIGS. 8(c) and 8(d), the rotary shaft 35 may be made to protrude a predetermined length from both sides of the body 31, and guide members 36 may be made to protrude from both sides of the tip end.

[0042] FIG. 9 is a schematic diagram showing the main part of the rear surface of the inclined floor 3.

[0043] As shown in Figure 9, the back surface of the inclined floor 3 is provided with a frame 41 arranged along the longitudinal edge of the back surface of the inclined floor 3, and a required number of reinforcing members 42 arranged at predetermined intervals in the width direction within the frame 41.

[0044] As mentioned above, the contact plate 4 is placed across the rolling range of the rolling member 22a of the inclined member 22 between the reinforcing members 42, 42. The contact plate 4 is made of a steel plate of a predetermined thickness, for example, 3 mm, to accommodate the rolling of the rolling member 22a. A stopper receiving portion 5 is disposed near the outer edge between the reinforcing members 42, 42. As shown in Figure 10(b), both sides of the stopper receiving portion 5 are raised to serve as guides or contact prevention portions for the stopper 30. In addition, the portion of the stopper receiving portion 5 where the tip of the stopper 30 abuts is made of a steel plate of a predetermined strength to prevent the stopper 30 from punching through the inclined floor 3.

[0045] In this way, in this embodiment, the inclined floor 3 is tilted at a predetermined angle by the floor tilt support device 20 with the tilting support of the mechanical tilting aid 10, and the predetermined angle is maintained by the floor tilt support device 20 centered around the coil spring cylinder 21, which significantly reduces the manufacturing cost of the transport vehicle T. Furthermore, since no special utilities are used, the running costs can also be significantly reduced.

[0046] In addition, the inclined floor 3 can be easily tilted and returned to its original position, making it easy to handle. Furthermore, in the returned position, it can be used as a normal transport vehicle, making it highly versatile.

[0047] The present invention has been described above based on the embodiments. Although the present invention is provided with a stopper 30, if a gas spring with a stopper is used, the stopper 30 may be unnecessary.

[0048] In addition, if the width of the inclined floor 3 is wide, another set of mechanical inclination aid 10 and floor inclination support device 20 may be added. [Industrial Applicability]

[0049] The invention is applicable to the automotive and transportation industries. [Explanation of symbols]

[0050] T transport vehicle 1. Platform for transport vehicles 2 beds 3 Sloped floor 4 Toban 5 Stopper receiving part 6 Stopper storage area 10 Mechanical tilt aid 11 Gas spring 11R Right Gas Spring 11L left gas spring 20 Floor tilt support device 21 Coil spring cylinder 21a Piston rod 22 Inclined member 22A Right side inclined member split body 22B Left side inclined member split body 22a Rolling member 23 Link mechanism 24 Link 1 25 Second Link 25a Lower member 25b Horizontal member 25c joint 26 Bearings 30 Stopper 31 Torso 32 cushions 33 Rotating board 33a Through hole 34 Handle 35 Rotating shaft 36 Guide member 41 slots 42 Reinforcement member 50 Materialized link mechanism 51 Coil spring cylinder 51a Piston rod 52 First Link 53 Second Link 53a Lower member 53b Horizontal member 54 Slide member 55 Signboard 56 bearings 57 Bearings 58 Joint

Claims

1. A carrier for a transport vehicle that transports plate materials at an incline, A part of the floor of the loading platform is rotatable, A mechanical tilting aid and a floor tilting support device that tilts the floor and maintains the tilt are provided under the rotatable floor, The mechanical tilting aid is a pair of gas springs; The floor tilt support device includes a spring cylinder, a tilting member, and a link mechanism engaged with a piston rod of the spring cylinder and the tilting member; The link mechanism changes the tilt angle of the tilt member in response to the advancement and retreat of the piston rod. A loading platform for a transport vehicle.

2. 2. The platform for a transport vehicle according to claim 1, wherein the gas spring is disposed at an appropriate position on the underside of the rotatable floor.

3. 2. A platform for a transport vehicle according to claim 1, wherein the inclined member has a rolling member at a tip end thereof.

4. 4. A platform for a transport vehicle according to claim 3, wherein the rotatable floor has a contact plate within the rolling range of the rolling members.

5. 2. The platform for a transport vehicle according to claim 1, further comprising a rotatable stopper for preventing the tiltable floor from falling.

6. 6. A platform for a transport vehicle according to claim 5, wherein the rotatable floor has a stopper receiving portion.

7. A guide member has stoppers formed on both sides of the tip thereof, The stopper receiving portion has guide edges that are raised on both sides to guide the guide member.

7. The platform for a transport vehicle according to claim 6.

8. A transport vehicle comprising the transport vehicle loading platform according to any one of claims 1 to 7.

9. 9. The transporter according to claim 8, wherein the transporter is a trailer or a truck.

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