Cargo receiving table elevator and vehicle

Abstract

To provide a cargo receiving table elevator which can suppress the shake of an elevation unit having a cargo receiving table, and a vehicle.SOLUTION: The cargo receiving table elevator comprises: an elevation unit having a cargo receiving table; a swiveling mechanism fixed on a floor part of a cargo bed to connect the elevation unit with the floor part so that the elevation unit can swivel with a vertical direction as an axis; and a shake regulation member for regulating the movement in any one direction of the front, back, left and right directions of the elevation unit when the elevation unit swivels by means of the swiveling mechanism to be positioned at a storage position during traveling of a vehicle, and allowing the movement of the elevation unit when the elevation unit is positioned at a position other than the storage position. The swiveling mechanism has a connection part to be connected to a lower part of the elevation unit at the storage position, while the shake regulation member regulates the movement of the elevation unit above the connection part.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a load receiving platform lifting device and a vehicle.

Background Art

[0002] Patent Document 1 describes a load receiving platform lifting device including a table for loading luggage and a lift frame provided with a lift cylinder. In this load receiving platform lifting device, the lift frame is supported so as to be rotatable left and right around a vertical axis. The lift frame is supported at both ends by two arms on the upper side and the lower side with respect to a vertical axis whose upper and lower ends are fixed to the load platform. By supporting both ends of the lift frame, it is possible to suppress the sway of the lift frame in the stored state due to the running vibration of the vehicle.

[0003] By the way, there are cases where the lift frame is cantilever-supported only at one location on the floor side of the vehicle. For example, due to some structure of the lift frame, it may be difficult to provide the upper arm, or the upper arm may interfere with some fitting on the vehicle side. In this case, since the upper end side of the lift frame in the stored state becomes a free end, the lift frame will sway due to the running vibration of the vehicle.

[0004] Also, when the lift frame is turned upside down instead of turning left and right, it becomes a cantilever support only for the axis to be inverted, so the lift frame will sway due to the running vibration of the vehicle.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] Therefore, the problem is to provide a load receiving platform lifting device and a vehicle capable of suppressing the shaking of the lifting unit having the load receiving platform.

Means for Solving the Problem

[0007] [1] The load receiving platform lifting device includes: a lifting unit having a load receiving platform; a swivel mechanism fixed to the floor portion of the loading platform and connecting the lifting unit and the floor portion so that the lifting unit can swivel about the vertical direction; a shaking restricting member that restricts the movement of the lifting unit in any one direction of the front-rear, left-right directions when the lifting unit is swiveled by the swivel mechanism and located at the storage position during vehicle travel, and allows the movement of the lifting unit when the lifting unit is located outside the storage position; The swivel mechanism has a connection portion connected to the lower portion of the lifting unit at the storage position; The shaking restricting member restricts the movement of the lifting unit above the connection portion.

[0008] [2] The load receiving platform lifting device includes: a lifting unit having a load receiving platform; a reversing mechanism fixed to the floor portion of the loading platform and connecting the lifting unit and the floor portion so that the lifting unit can be reversed about the left-right direction; a shaking restricting member that restricts the movement of the lifting unit in any one direction of the front-rear, left-right directions when the lifting unit is reversed by the reversing mechanism and located at the non-use position where the load receiving platform is not used; The reversing mechanism has a connection portion connected to the lower portion of the lifting unit at the non-use position; The shaking restricting member restricts the movement of the lifting unit above the connection portion.

[0009] [3] In the load receiving platform lifting device of the above [1], The shake restricting member restricts the movement of the elevating unit in the turning direction. Such a configuration may be used.

[0010] [4] In the load receiving platform elevating device of the above [2], The shake restricting member restricts the movement of the elevating unit in the reverse direction. Such a configuration may be used.

[0011] [5] In any one of the load receiving platform elevating devices of the above [1] to [4], The shake restricting member restricts the movement of the elevating unit in two directions orthogonal to the width direction of the load receiving platform. Such a configuration may be used.

[0012] [6] In any one of the load receiving platform elevating devices of the above [1] to [5], The shake restricting member is above the center of gravity of the elevating unit and restricts the movement of the elevating unit. Such a configuration may be used.

[0013] [7] In any one of the load receiving platform elevating devices of the above [1] to [6], The shake restricting member is above the centroid of the elevating unit when viewed from a direction parallel to the width direction of the load receiving platform and restricts the movement of the elevating unit. Such a configuration may be used.

[0014] [8] In any one of the load receiving platform elevating devices of the above [1] to [7], The shake restricting member is above the vertical center of the elevating unit when viewed from a direction parallel to the width direction of the load receiving platform and restricts the movement of the elevating unit. Such a configuration may be used.

[0015] [9] In any one of the load receiving platform elevating devices of the above [1] to [8], The shake regulation member is fixed to the loading platform. Such a configuration may be used.

[0016]

[10] The vehicle includes any one of the loading platform lifting devices of [1] to [9] above, and a loading platform to which the loading platform lifting device is attached.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Mode for Carrying Out the Invention

[0018] In each drawing, the dimensions of the components may be enlarged or reduced with respect to the actual dimensions for ease of understanding, for example, and the dimensional ratios between the drawings may not match. In each drawing, a part of the components may be omitted for ease of understanding, for example.

[0019] Terms including ordinal numbers such as first, second, etc. are used to describe various components, but this term is used only for the purpose of distinguishing one component from another, and the components are not particularly limited by this term. Note that the number of components including ordinal numbers is not particularly limited, and may be, for example, one. Also, the ordinal numbers used in the following specification and drawings may be different from the ordinal numbers described in the claims.

[0020] Also, in the following description, the first direction (first lateral direction) D1 is also referred to as the front-rear direction D1. In the first direction D1, the arrow direction in the figure is defined as the front direction, and the direction opposite to the arrow direction in the figure is defined as the rear direction. Also, the second direction (second lateral direction) D2 is also referred to as the left-right direction D2. In the second direction D2, the arrow direction in the figure is defined as the left direction, and the direction opposite to the arrow direction in the figure is defined as the right direction.

[0021] Further, the third direction D3 is also referred to as the up-down direction D3. In the third direction D3, the arrow direction in each figure is defined as the upward direction, and the direction opposite to the arrow direction in each figure is defined as the downward direction. That is, each of the directions D1 to D3 is the direction as seen from a person (driver) sitting in the driver's seat of the vehicle.

[0022] Hereinafter, an embodiment of the vehicle and the loading platform lifting device will be described with reference to FIGS. 1 to 12. Note that the following embodiments are exemplified to assist in understanding the configuration and the like of the vehicle and the loading platform lifting device, and do not limit the configuration of the vehicle and the loading platform lifting device.

[0023] As shown in FIG. 1, the vehicle 1 may include, for example, a vehicle body 2, a loading platform 3 fixed on a vehicle body frame 2a disposed at the rear end of the vehicle body 2, and a loading platform lifting device 4 attached to the loading platform 3. The vehicle 1 is not particularly limited, but may be, for example, a cargo vehicle as in this embodiment.

[0024] The loading platform 3 may include, for example, as in this embodiment, a floor portion 3a, a pair of side walls 3b, 3b respectively provided on both the left and right sides of the floor portion 3a, and a tailgate 3c rotatably connected to the rear end portion of the floor portion 3a about the left-right direction D2. In this embodiment, the loading platform 3 is open at the top, but is not limited to such a configuration, and may be, for example, a box-shaped (specifically, a loading box) having a ceiling and closed at the top.

[0025] The floor portion 3a includes, for example, a loading platform floor surface 3d on which goods are loaded. Thereby, the space above the loading platform floor surface 3d becomes a loading space for goods. Further, the tailgate 3c may be rotatable, for example, between an open position (the position shown in FIG. 1) hanging downward from the floor portion 3a of the loading platform 3 and a closed position (not shown) rising upward from the floor portion 3a of the loading platform 3.

[0026] The load receiving platform lifting device 4 is used, for example, when loading and unloading goods from the rear of the loading platform 3 onto the loading platform floor surface 3d of the loading platform 3. And the load receiving platform lifting device 4 may include, for example, a vertically lifting type lifting unit 5 and a mounting unit 6 for mounting the lifting unit 5 on the loading platform 3 as in this embodiment.

[0027] The lifting unit 5 may include, for example, as in this embodiment, a pair of cylindrical outer columns 7, 7 extending in the vertical direction D3, cylindrical inner columns 8, 8 extending in the vertical direction D3, inserted into the outer columns 7, and moving in the vertical direction D3 with respect to the outer columns 7, and a cylindrical cross member 9 extending in the left - right direction D2 and connecting the pair of outer columns 7, 7.

[0028] In this embodiment, the outer column 7 is provided with an outer slit 7b extending in the vertical direction D3 on the rear wall 7a, and the inner column 8 is provided with an inner slit 8b extending in the vertical direction D3 on the rear wall 8a. And the outer slit 7b and the inner slit 8b communicate with each other in the front - rear direction D1 (see FIG. 1).

[0029] The lifting unit 5 may include, for example, as in this embodiment, a slider 10 that moves in the vertical direction D3 with respect to the outer column 7 and the inner column 8, and a load receiving platform 11 connected to the slider 10. The slider 10 is arranged across the inside and outside of the outer column 7 and the inner column 8 by inserting through the outer slit 7b and the inner slit 8b.

[0030] Thereby, as shown in FIGS. 1 and 2, the load receiving platform 11 can move in the vertical direction D3 between the lower end position (see FIG. 1) and the upper end position (see FIG. 2). At this time, the slider 10 moves in the vertical direction D3 with respect to the inner column 8, or the slider 10 and the inner column 8 move integrally in the vertical direction D3 with respect to the outer column 7, or the slider 10 moves in the vertical direction D3 with respect to the inner column 8 and the outer column 7.

[0031] The load receiving table 11 may include, for example, as in this embodiment, a first plate 11a rotatably connected to the slider 10 and a second plate 11b rotatably connected to the first plate 11a. Thus, as shown in FIGS. 1 to 3, the load receiving table 11 can be deformed between a load receiving posture in which the first and second plates 11a and 11b are deployed and extend along the front-rear direction D1 (see FIGS. 1 and 2) and a storage posture in which the first and second plates 11a and 11b are folded and extend along the vertical direction D3 (see FIG. 3).

[0032] The mounting unit 6 may include, for example, as in this embodiment, a base portion 12 placed on the floor portion 3a of the loading platform 3, a lock pin 13 (see FIGS. 6 to 8) for fixing the base portion 12 to the floor portion 3a of the loading platform 3, a reversing mechanism 14 for reversing the lifting unit 5 about the left-right direction D2, a swiveling mechanism 15 for rotating the lifting unit 5 and the base portion 12 about the vertical direction D3, and a reversing prevention pin 16 (see FIGS. 6 to 8) for fixing the lifting unit 5 to the base portion 12.

[0033] As shown in FIG. 6, the base portion 12 may include a pair of reversing support portions 21, 21 and a connecting plate portion 22 connecting the pair of reversing support portions 21, 21. The pair of reversing support portions 21, 21 rotatably support the pair of outer columns 7, 7 respectively. The lower surface of the reversing support portion 21 is placed on the loading platform floor surface 3d of the floor portion 3a.

[0034] As shown in FIGS. 6 to 8, the lock pin 13 may fix the base portion 12 to the floor portion 3a of the loading platform 3, for example, by sandwiching the base portion 12 and the floor portion 3a of the loading platform 3 in the vertical direction D3. And the lock pin 13 may be detachable from, for example, the base portion 12 and the floor portion 3a of the loading platform 3. Thereby, the base portion 12 can be switched between a fixed state fixed to the floor portion 3a of the loading platform 3 and a movable state movable with respect to the floor portion 3a of the loading platform 3.

[0035] Returning to FIGS. 1 to 4, the inversion mechanism 14 connects the lifting unit 5 and the base portion 12 such that the lifting unit 5 is rotatable with respect to the base portion 12, for example, as in this embodiment. The inversion mechanism 14 includes an inversion shaft 17 that connects the outer column 7 and the base portion 12. The inversion shaft 17 is connected to the outer column 7 via a bracket. Thereby, as shown in FIGS. 3 and 4, the lifting unit 5 can be inverted between a use position (see FIGS. 1 to 3) where the load receiving table 11 is used and a non-use position (see FIG. 4) where the load receiving table 11 is not used.

[0036] Then, as shown in FIGS. 1 to 3, when the lifting unit 5 is in the use position, a part of the outer column 7 is disposed below the loading platform floor surface 3d. On the other hand, as shown in FIG. 4, when the lifting unit 5 is in the non-use position, the entire outer column 7 is disposed above the loading platform floor surface 3d. Specifically, when the lifting unit 5 is in the non-use position, the entire load receiving table lifting device 4 is placed on the loading platform floor surface 3d.

[0037] Note that the up and down of the lifting unit 5 is opposite between the use position and the non-use position. Also, the inversion mechanism 14 may invert the lifting unit 5, for example, by manual force (e.g., turning the handle 14a), or may invert the lifting unit 5 by a drive source (e.g., a motor), for example.

[0038] As shown in FIGS. 6 to 8, the anti-rotation pin 16 may be fixed to the base portion 12, for example, as in this embodiment. When the lifting unit 5 is in the non-use position, the lifting unit 5 may be fixed to the base portion 12 by inserting the tip of the anti-rotation pin 16 into a fixing hole 7c formed in the outer column 7.

[0039] The swivel mechanism 15 is fixed to the floor portion 3a of the loading platform 3, for example, as in the present embodiment, and connects the base portion 12 and the floor portion 3a of the loading platform 3 so that the base portion 12 can rotate relative to the floor portion 3a of the loading platform 3. As a result, as shown in FIGS. 4 and 5, the lifting unit 5 can rotate between the non-use position (see FIG. 4) and the storage position (see FIG. 5).

[0040] When the lifting unit 5 is in the non-use position, the cross member 9 is arranged to extend in the left-right direction D2, and when the lifting unit 5 is in the storage position, the cross member 9 is arranged to extend in the front-rear direction D1. Further, the swivel mechanism 15 may rotate the base portion 12 and the lifting unit 5 manually, for example, or may rotate the base portion 12 and the lifting unit 5 by a drive source (for example, a motor), for example.

[0041] In this way, the lifting unit 5 can move to the use position (see FIGS. 1 to 3), the non-use position (see FIG. 4), and the storage position (see FIG. 5) respectively. In this specification, unless otherwise specified, the front-rear direction D1 (front, rear, forward, backward), the left-right direction D2 (left, right, leftward, rightward), and the up-down direction D3 (up, down, upward, downward) are the directions D1 to D3 when the lifting unit 5 is in the use position.

[0042] As shown in FIG. 9, the load receiving platform lifting device 4 includes a sway restricting member 30 that restricts the movement of the lifting unit 5 in any one of the front-rear, left-right directions when the lifting unit 5 is in the storage position, and allows the movement of the lifting unit 5 when the lifting unit 5 is in the use position and the non-use position. Thereby, the sway of the lifting unit 5 caused by the running vibration of the vehicle 1 can be suppressed.

[0043] The sway restricting member 30 may restrict movement in two directions orthogonal to the width direction of the loading platform 11 of the lifting unit 5. The width direction of the loading platform 11 is the direction in which the outer columns 7 are arranged. That is, when the lifting unit 5 is in the storage position, the width direction of the loading platform 11 is the front-rear direction D1, and the two directions orthogonal to the width direction of the loading platform 11 are the left direction and the right direction.

[0044] The sway restricting member 30 may include a first restricting member 31 that restricts at least the leftward movement of the lifting unit 5 and a second restricting member 32 that restricts at least the rightward movement of the lifting unit 5. The first restricting member 31 is, for example, a rod-shaped member that abuts against the left side of the lifting unit 5. The second restricting member 32 is, for example, a string-shaped member (belt, rope, chain, etc.) that abuts against the right side of the lifting unit 5.

[0045] The sway restricting member 30 may be fixed to the loading platform 3. The sway restricting member 30 is, for example, fixed to the side wall 3b of the loading platform 3. As shown in FIG. 10, the sway restricting member 30 may be fixed to the loading platform 3 via a bracket 33.

[0046] At least one bracket 33 is provided, but a plurality of brackets 33 may be provided in the front-rear direction D1. Although not particularly limited, two brackets 33 may be provided as in the present embodiment.

[0047] The bracket 33 includes a hook member 34 that hooks onto the upper part of the side wall 3b and a support member 35 that is connected to the hook member 34. The hook member 34 and the support member 35 are fixed by a fastening member 36 in a state of sandwiching the side wall 3b from both sides.

[0048] The engaging member 34 includes an engaging portion 34a having a U-shaped cross-section that is hooked on the outer surface of the side wall 3b, a flat portion 34b extending upward from the engaging portion 34a, and a reinforcing rib 34c disposed at a corner formed by the engaging portion 34a and the flat portion 34b. The engaging portion 34a and the flat portion 34b are integrally formed, for example, by bending a rectangular plate. As shown in FIG. 11, the reinforcing rib 34c is disposed at the center of the flat portion 34b in the front-rear direction D1. A pair of through holes (not shown) through which a bolt 36a (described later) is inserted are formed in the flat portion 34b so as to sandwich the reinforcing rib 34c.

[0049] The support member 35 includes a plate 37 connected to the engaging portion 34a and a channel 38 extending in the left-right direction D2 from the plate 37. A pair of through holes (not shown) through which a bolt 36a (described later) is inserted are formed in the plate 37. The channel 38 is a member having a U-shaped cross-section and is fixed to the plate 37 by welding or the like. A long hole 38a that is long in the left-right direction D2 is formed in the side wall of the channel 38. Further, two angle members 38b are fixed to the bottom surface of the channel 38. The angle members 38b support the lower surface of the first regulating member 31.

[0050] The fastening member 36 is, for example, a bolt 36a and a nut 36b. One of the two bolts 36a is an eyebolt having an annular ring 36c formed on its head. One end of the second regulating member 32 is connected to the annular ring 36c.

[0051] At least one first regulating member 31 is provided, and a plurality of first regulating members 31 may be provided in the front-rear direction D1. Although not particularly limited, two first regulating members 31 may be provided as in the present embodiment.

[0052] The first regulating member 31 includes a pipe 31a and an adjuster 31b connected to the tip of the pipe 31a. The adjuster 31b can approach or move away from the pipe 31a by rotating, so that the length of the first regulating member 31 can be adjusted. The first regulating member 31 abuts on the lifting unit 5. Thereby, the first regulating member 31 can suppress the leftward sway of the lifting unit 5.

[0053] A pin 31c is fixed to the base end of the pipe 31a. Both ends of the pin 31c protrude from the pipe 31a and are inserted into the long hole 38a of the channel 38. Thereby, the pipe 31a can rotate about the pin 31c. Further, the pipe 31a (pin 31c) can move along the long hole 38a of the channel 38.

[0054] In addition, when the pin 31c is inserted into the long hole 38a, as shown in FIG. 12, the first regulating member 31 can be leaned diagonally against the bracket 33 except when the vehicle 1 is running.

[0055] The second regulating member 32 includes a belt 32a and hooks 32b provided at both ends of the belt 32a. The hook 32b is hooked on the ring 36c of the bolt 36a. The belt 32a is stretched over the lifting unit 5. Thereby, the second regulating member 32 can suppress the sway of the lifting unit 5 in the right direction and the front-rear direction D1.

[0056] Incidentally, the swivel mechanism 15 is connected to the lifting unit 5 via the base portion 12. As a result, the swivel mechanism 15 has a connection portion 15a (see FIG. 9) connected to the lower portion of the lifting unit 5 in the non-use position and the storage position. Although not particularly limited, the connection portion 15a is, for example, an arm extending toward the base portion 12. Note that there may be a plurality of connection portions 15a in the vertical direction D3. When there are a plurality of connection portions 15a, a swing restricting member 30 may be provided above the uppermost connection portion 15a. Since only the lower portion of the lifting unit 5 is connected to the swivel mechanism 15 by the connection portion 15a, the upper portion is a free end, and it is easy for the lifting unit 5 to swing in the front-rear, left-right directions due to the running vibration of the vehicle.

[0057] The bracket 33 is fixed to the side wall 3b above the connection portion 15a, and the swing restricting member 30 (the first restricting member 31 and the second restricting member 32) contacts the lifting unit 5 above the connection portion 15a to restrict the movement of the lifting unit 5. Thereby, the swing restricting member 30 can effectively restrict the movement of the lifting unit 5 in any one direction in the front-rear, left-right directions of the lifting unit 5, and can suppress the swing of the lifting unit 5. Note that the connection portion 15a is a portion connecting a movable portion that moves relative to the loading platform 3 when the lifting unit 5 swivels and a fixed portion that does not move. In the present embodiment, the connection portion 15a connects the base portion 12 (movable portion) and a vertical axis (fixed portion) extending in the vertical direction D3 of the swivel mechanism 15.

[0058] As described above, the load receiving platform lifting device 4 is, as in the present embodiment, a lifting unit 5 having a load receiving platform 11, a swivel mechanism 15 fixed to the floor portion 3a of the loading platform 3 and connecting the lifting unit 5 and the floor portion 3a so that the lifting unit 5 can swivel about the vertical direction D3 as an axis, When the lifting unit 5 rotates by the swivel mechanism 15 and is positioned at the storage position during vehicle travel, the movement of the lifting unit 5 in any one direction of the front-rear, left-right directions is restricted, and when the lifting unit 5 is positioned outside the storage position (in this embodiment, the use position and the non-use position), a shaking restriction member 30 that allows the movement of the lifting unit 5 is provided. The swivel mechanism 15 has a connection portion 15a connected to the lower portion of the lifting unit 5 at the storage position. The shaking restriction member 30 restricts the movement of the lifting unit 5 above the connection portion 15a. Such a configuration is preferable.

[0059] According to such a configuration, since the shaking restriction member 30 restricts the movement of the lifting unit 5 in any one direction of the front-rear, left-right directions, the shaking of the lifting unit 5 having the load receiving table 11 can be suppressed.

[0060] Also, in the load receiving table lifting device 4, as in this embodiment, The shaking restriction member 30 restricts the movement of the lifting unit 5 in the swivel direction. Such a configuration is preferable.

[0061] According to such a configuration, the lifting unit 5 can effectively suppress the shaking of the lifting unit 5 with respect to the particularly large shaking of the load receiving table 11 in the swivel direction. Further, since the swivel of the lifting unit 5 can be restricted by the shaking restriction member 30, the lock pin 13 may be omitted.

[0062] Also, in the load receiving table lifting device 4, as in this embodiment, The shaking restriction member 30 restricts the movement of the lifting unit 5 in two directions (in this embodiment, the left direction and the right direction) orthogonal to the width direction of the load receiving table 11 of the lifting unit 5. Such a configuration is preferable.

[0063] According to such a configuration, the lifting unit 5 can effectively suppress the sway of the lifting unit 5 with respect to the particularly large sway in two directions orthogonal to the width direction of the loading platform 11.

[0064] Also, in the loading platform lifting device 4, as in the present embodiment, the sway restricting member 30 is fixed to the loading platform 3, such a configuration is preferable.

[0065] According to such a configuration, the sway restricting member 30 is less likely to interfere with the operation of the lifting unit 5.

[0066] Also, the vehicle 1, as in the present embodiment, includes the above-described loading platform lifting device 4 and the loading platform 3 to which the loading platform lifting device 4 is attached, such a configuration is preferable.

[0067] According to such a configuration, the sway of the lifting unit 5 having the loading platform 11 can be suppressed.

[0068] Note that the vehicle 1 and the loading platform lifting device 4 are not limited to the configurations of the above-described embodiments, nor are they limited to the above-described operational effects. Also, the vehicle 1 and the loading platform lifting device 4 can of course be variously modified within a range not departing from the gist of the present invention. For example, it goes without saying that the configurations and methods according to the following various modification examples can be arbitrarily selected singly or in combination and adopted in the configurations and methods according to the above-described embodiments.

[0069] (A) In the load receiving platform lifting device 4 according to the above embodiment, the shaking restricting member 30 is configured to restrict the movement of the load receiving platform 11 of the lifting unit 5 in the left and right directions orthogonal to the width direction. However, the load receiving platform lifting device 4 is not limited to such a configuration. For example, the shaking restricting member 30 may be configured to restrict the movement of the lifting unit 5 in one direction orthogonal to the width direction. The shaking restricting member 30 may be configured to include only one of the first restricting member 31 and the second restricting member 32, for example.

[0070] Also, when the second restricting member 32 is not provided and only the first restricting member 31 is provided, the first restricting member 31 may be provided with a hook (not shown) instead of the adjuster 31b, and the lifting unit 5 may be bound by gripping (or hooking) the lifting unit 5 so as to restrict the movement of the lifting unit 5 not only in the left direction but also in the right direction (and the front-rear direction D1).

[0071] (B) In the load receiving platform lifting device 4 according to the above embodiment, the shaking restricting member 30 includes the first restricting member 31 and the second restricting member 32. The first restricting member 31 is a rod-shaped member that abuts against the left side of the lifting unit 5, and the second restricting member 32 is a string-shaped member that abuts against the right side of the lifting unit 5. However, the load receiving platform lifting device 4 is not limited to such a configuration. The shaking restricting member 30 only needs to be able to suppress the shaking of the lifting unit 5, and the shape and arrangement are not particularly limited.

[0072] (C) In the load receiving platform lifting device 4 according to the above embodiment, the shaking restricting member 30 is configured to be fixed to the load platform 3. However, the load receiving platform lifting device 4 is not limited to such a configuration. For example, the shaking restricting member 30 may be configured to be fixed to the lifting unit 5. At this time, the shaking restricting member 30 suppresses the shaking of the lifting unit 5 by contacting the load platform 3. In any case, the shaking restricting member 30 is a member that relatively fixes the lifting unit 5 and the load platform 3.

[0073] (D) As shown in FIG. 13, the shaking restricting member 30 preferably has a configuration that restricts the movement of the elevating unit 5 above the center of gravity 5A of the elevating unit 5. Since the movement of the elevating unit 5 is restricted above the center of gravity 5A, that is, on the free end side, the shaking of the elevating unit 5 can be effectively suppressed.

[0074] (E) As shown in FIG. 14, the shaking restricting member 30 preferably has a configuration that restricts the movement of the elevating unit 5 above the centroid 5B of the elevating unit 5 when viewed from a direction parallel to the width direction of the load receiving base 11. Since the movement of the elevating unit 5 is restricted above the centroid 5B, that is, on the free end side, the shaking of the elevating unit 5 can be effectively suppressed. Note that the centroid 5B of the elevating unit 5 is the centroid of the substantially rectangular outer column 7.

[0075] (F) As shown in FIG. 15, the shaking restricting member 30 preferably has a configuration that restricts the movement of the elevating unit 5 above the vertical center 5C of the elevating unit 5 when viewed from a direction parallel to the width direction of the load receiving base 11. Since the movement of the elevating unit 5 is restricted above the vertical center 5C, that is, on the free end side, the shaking of the elevating unit 5 can be effectively suppressed.

[0076] (G) As shown in FIG. 16, the load receiving base elevating device 4 an elevating unit 5 having a load receiving base 11, a reversing mechanism 14 fixed to the floor portion 3a of the load platform 3 and connecting the elevating unit 5 and the floor portion 3a so that the elevating unit 5 can be reversed about a lateral direction (the left - right direction D2 in FIG. 13), a shaking restricting member 30 that restricts the movement of the elevating unit 5 in any one direction of the front - rear, left - right directions when the elevating unit 5 is reversed by the reversing mechanism 14 and the load receiving base 11 is in an unused position where it is not used, and is provided with, the reversing mechanism 14 has a connecting portion (the reversing shaft 17 in FIG. 16) connected to the lower portion of the elevating unit 5 in the unused position, the shaking restricting member 30 may also have a configuration that restricts the movement of the elevating unit 5 above the connecting portion.

[0077] According to such a configuration, since the shaking restricting member 30 restricts the movement of the elevating unit 5 in any one direction of the front-back, left-right directions, it is possible to suppress the shaking of the elevating unit 5 having the loading platform 11. Note that the connecting portion is a portion that connects a movable portion that moves relative to the loading platform 3 when the elevating unit 5 is inverted and a fixed portion that does not move. In the present embodiment, the connecting portion connects the outer column 7 (movable portion) and the base portion 12 (fixed portion).

[0078] The shaking restricting member 30 may be configured to restrict the movement of the elevating unit 5 in the inversion direction. According to such a configuration, since the inversion of the elevating unit 5 can be restricted by the shaking restricting member 30, the anti-inversion pin 16 may be omitted.

[0079] The shaking restricting member 30 may include a first restricting member that restricts at least the forward movement of the elevating unit 5 and a second restricting member that restricts at least the backward movement of the elevating unit 5. At this time, the shaking restricting member 30 may be fixed to the loading platform 3 via a bracket extending in the left-right direction D2 from the side wall 3b of the loading platform 3.

[0080] (H) Further, in the loading platform elevating device 4 according to the above embodiment, it has a configuration including the inversion mechanism 14 and the turning mechanism 15. However, the loading platform elevating device 4 is not limited to such a configuration. For example, the loading platform elevating device 4 may have a configuration including only one of the inversion mechanism 14 and the turning mechanism 15.

[0081] (I) Further, in the vehicle 1 according to the above embodiment, it includes the loading platform 3 with an open upper part, but the vehicle 1 may be a so-called van vehicle having a loading platform with a ceiling. In this case, the turning mechanism 15 may be fixed at both ends of the floor portion 3a and the ceiling.

[0082] (J) Further, in the vehicle 1 according to the above embodiment, the loading platform lifting device 4 is configured to be directly attached to the loading platform 3. However, the loading platform lifting device 4 is not limited to such a configuration. For example, the loading platform lifting device 4 may be configured to be indirectly attached to the loading platform 3 by being attached to the vehicle body 2.

[0083] (K) Further, in the loading platform lifting device 4 according to the above embodiment, the lifting unit 5 is configured to be a vertically lifting type. However, the loading platform lifting device 4 is not limited to such a configuration. For example, the lifting unit 5 may be configured to be an arm type. For example, the loading platform 11 may be lifted and lowered by an arm as in the configuration described in Japanese Unexamined Patent Application Publication No. 2022-114226 or the configuration described in Japanese Patent No. 7281909. In this case, the connecting portion may connect a cross member (movable portion) fixed to the end portion of the arm opposite to the loading platform 11 and a fixed portion that does not move relative to the loading platform 3. Even in this case, in the stored state of the lifting unit 5, the cross member is a lower portion located below the loading platform 11 and the arm.

Description of Reference Numerals

[0084] 1... Vehicle, 2... Vehicle body, 2a... Vehicle body frame, 3... Loading platform, 3a... Floor part, 3b... Side wall, 3c... Sliding door, 3d... Loading platform floor surface, 4... Loading platform lifting device, 5... Lifting unit, 5A... Center of gravity of the lifting unit, 5B... Centroid of the lifting unit, 5C... Vertical center of the lifting unit, 6... Mounting unit, 7... Outer column, 7a... Rear wall, 7b... Outer slit, 7c... Fixing hole, 8... Inner column, 8a... Rear wall, 8b... Inner slit, 9... Cross member, 10... Slider, 11... Loading receptacle, 11a... First plate, 11b... Second plate, 12... Base part, 13... Lock pin, 14... Inversion mechanism, 14a... Handle, 15... Swivel mechanism, 15a... Connection part, 16... Inversion rotation stop pin, 17... Inversion axis, 21... Inversion support part, 22... Connecting plate part, 30... Vibration restricting member, 31... First restricting member, 31a... Pipe, 31b... Adjuster, 31c... Pin, 32... Second restricting member, 32a... Belt, 32b... Hook, 33... Bracket, 34... Hanging member, 34a... Hooking part, 34b... Flat part, 34c... Reinforcing rib, 35... Support member, 36... Fastening member, 36a... Bolt, 36b... Nut, 36c... Annulus, 37... Plate, 38... Channel, 38a... Long hole, 38b... Angle bar, D1... Front-rear direction, D2... Left-right direction, D3... Up-down direction

Claims

1. A lifting unit having a load receiving platform, a swivel mechanism that is fixed to the floor portion of the load receiving platform and connects the lifting unit and the floor portion so that the lifting unit can swivel about the vertical direction, a shaking restriction member that restricts movement of the lifting unit in any one direction of the front-rear, left-right directions when the lifting unit swivels by the swivel mechanism and is located at the storage position during vehicle travel, and allows movement of the lifting unit when the lifting unit is located outside the storage position, and the swivel mechanism has a connection portion connected to the lower portion of the lifting unit at the storage position, the shaking restriction member is a load receiving platform lifting device that restricts movement of the lifting unit above the connection portion.

2. A lifting unit having a load receiving platform, a reversing mechanism that is fixed to the floor portion of the load receiving platform and connects the lifting unit and the floor portion so that the lifting unit can be reversed about the lateral direction, a shaking restriction member that restricts movement of the lifting unit in any one direction of the front-rear, left-right directions when the lifting unit is reversed by the reversing mechanism and is located at the non-use position where the load receiving platform is not used, and the reversing mechanism has a connection portion connected to the lower portion of the lifting unit at the non-use position, the shaking restriction member is a load receiving platform lifting device that restricts movement of the lifting unit above the connection portion.

3. The load receiving platform lifting device according to claim 1, wherein the shaking restriction member restricts movement of the lifting unit in the swiveling direction.

4. The load receiving platform lifting device according to claim 2, wherein the shaking restriction member restricts movement of the lifting unit in the reversing direction.

5. The load receiving platform lifting device according to any one of claims 1 to 4, wherein the shaking restriction member restricts movement of the lifting unit in two directions orthogonal to the width direction of the load receiving platform of the lifting unit.

6. The load receiving platform lifting device according to any one of claims 1 to 4, wherein the shaking restriction member restricts movement of the lifting unit above the center of gravity of the lifting unit.

7. The load receiving platform lifting device according to any one of claims 1 to 4, wherein the shaking restriction member restricts movement of the lifting unit above the centroid of the lifting unit when viewed from a direction parallel to the width direction of the load receiving platform.

8. The load receiving base lifting device according to any one of claims 1 to 4, wherein the sway restricting member restricts the movement of the lifting unit above the vertical center of the lifting unit when viewed in a direction parallel to the width direction of the load receiving base.

9. The load receiving base lifting device according to any one of claims 1 to 4, wherein the sway restricting member is fixed to the loading platform.

10. A vehicle comprising the load receiving base lifting device according to any one of claims 1 to 4, and a loading platform to which the load receiving base lifting device is attached.

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