Loading platform

Abstract

To provide a load-receiving base which enables a worker to a standing state of a stopper even in a dark place.SOLUTION: A load-receiving base 10 elevated between the ground face and the floor face of a load-carrying platform D of a cargo vehicle 1 by a load-receiving elevator 100 provided on the cargo vehicle comprises: a load-receiving body 12; and a stopper 23, provided on the load-receiving body 12 to be switchable between the standing state of standing above from the load-receiving face of the load-receiving body 12 by turning up and down the vehicle front side and the lodging state along the load-receiving face of the load-receiving body 12. The load-receiving body 12 has a storage space 12S that stores the stopper 23 in the lodging state. The internal face on the vehicle front side out of the load-receiving body 12 having the storage space 12S is provided with an illuminant 14.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a loading platform that is raised and lowered between the floor of the loading platform of a cargo vehicle and the ground by a loading platform lifting device provided on the cargo vehicle. [Background technology]

[0002] A loading platform lifting device that raises and lowers a loading platform, which is a tailgate of a freight vehicle, is known. The loading platform lifting device is used to unload luggage when transporting luggage from the loading platform of the freight vehicle, and to lift luggage when transporting luggage onto the loading platform.

[0003] The cargo receiving platform (7) of the freight vehicle disclosed in Patent Document 1 can be raised and lowered by a platform lifting drive unit (8) of a platform lifting device (100). As shown in Figures 5 and 6 of the document, a stopper (54) is attached to the third receiving platform member (45) of the cargo receiving platform (7). The stopper (54) can be switched between an upright position, in which the stopper (54) is raised above the receiving surface of the third receiving platform member (45), and a reclined position, in which the stopper (54) is positioned along the receiving surface of the third receiving platform member (45), by rotating the front side of the vehicle up and down. When the stopper (54) is raised, it prevents a cart or the like mounted on the receiving platform member from sliding off the loading platform (7) toward the rear of the vehicle. The stopper (54) can be switched between the upright position and the reclined position by an operator. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-117034 Summary of the Invention [Problem to be solved by the invention]

[0005] When a worker removes a load from the loading platform of a freight vehicle, the worker pushes the loaded cart or the like toward the rear of the vehicle to move the cart or the like from the loading platform to the loading platform. If the worker forgets to switch the stopper (54) from the lying position to the standing position at this time, the cart or the like may slide off the loading platform (7).

[0006] In particular, when a worker moves a cart or the like from the loading platform to the loading platform in a dark place such as at night, it is difficult for the worker to visually determine whether the stopper is standing up or not, increasing the possibility that the worker will mistakenly think that the stopper is standing up. Furthermore, because the stopper is a member that directly restricts the movement of the cart or the like, and considering that changes in shape may occur over time, there is a risk that the stopper may be difficult to suddenly switch from a collapsed state to an upright state.

[0007] The present invention has been devised in view of the above-mentioned problems, and has an object to provide a load receiving platform that allows an operator to easily recognize the upright state of a stopper even in a dark place. [Means for solving the problem]

[0008] A receiving platform according to a first aspect of the present invention is a receiving platform that is raised and lowered between the floor of the platform of the cargo vehicle and the ground by a receiving platform lifting device provided on the cargo vehicle, and includes a receiving platform main body and a stopper provided on the receiving platform main body that can be switched between an upright state in which the receiving platform main body stands above the receiving surface of the receiving platform main body and a reclined state in which the receiving platform main body is in contact with the receiving surface of the loading platform main body by rotating the front side of the vehicle up and down. A storage space is formed in the receiving platform main body to store the stopper in the reclined state. A light-emitting element is provided on the inner wall surface of the receiving platform main body that forms the storage space, on the inner wall surface on the front side of the vehicle.

[0009] With this configuration, the light emitter is located in the storage space rather than directly on the stopper, eliminating the impact of aging on the stopper. The light emitted by the light emitter, located on the inner wall of the main body of the load receiving platform that defines the storage space, is reflected by the front-facing surface of the stopper when it is in the upright position, and travels toward the platform. Furthermore, by locating the light emitter on the front side of the vehicle rather than the rear side where the stopper's pivot shaft is located, greater flexibility is provided in terms of installation space, increasing the versatility of the light emitter. This allows for stable warnings, allows for the function and size of the light emitter to be tailored as needed, and allows the light emitted by the light emitter to enter the field of view of a worker pushing a cart or similar object from inside the platform toward the rear of the vehicle, allowing the worker to visually confirm that the stopper is in the upright position. Therefore, with this configuration, the worker can easily recognize the upright position of the stopper, even in dark places.

[0010] A loading platform according to a second aspect of the present invention is the loading platform according to the first aspect, wherein a recess is formed on the inner wall surface on the vehicle front side, and the light emitter is provided in the recess.

[0011] Furthermore, with a cargo receiving platform having such a configuration, the light-emitting element is provided in a recess formed on the inner wall surface of the cargo receiving platform main body that forms the storage space for the stopper, on the inner wall surface toward the front of the vehicle.Therefore, the worker does not see the light from the light-emitting element directly, but sees it indirectly, and can therefore recognize the upright state of the stopper without being dazzled by the light from the light-emitting element.

[0012] A loading platform according to a third aspect of the present invention is a loading platform according to the first or second aspect, wherein the stopper extends in the vehicle width direction, and the light-emitting element is a rod-shaped light-emitting element extending in the vehicle width direction.

[0013] With a loading platform having such a configuration, the light-emitting element can illuminate most of the portion of the stopper extending in the vehicle width direction, allowing the worker to more reliably recognize the upright state of the stopper.

[0014] A fourth aspect of the present invention is a loading platform according to the third aspect, wherein the member forming the inner wall surface of the loading platform main body extends in the vehicle width direction and has a constant cross-sectional shape at any position in the vehicle width direction.

[0015] With a cargo receiving platform having such a configuration, it is possible to easily install a rod-shaped light-emitting element extending in the vehicle width direction in a recess formed in an inner wall surface formed by a member whose cross-sectional shape is constant at any position in the vehicle width direction.

[0016] A loading platform according to a fifth aspect of the present invention is a loading platform according to any one of the first to fourth aspects, and has a reflective material on the surface of the stopper facing forward of the vehicle when the stopper is in the upright position, which reflects light from the light-emitting element toward the front of the vehicle.

[0017] With a loading platform having such a configuration, the stopper in the upright position can reflect more light toward the front of the vehicle, allowing the worker to more reliably recognize the upright position of the stopper.

[0018] A sixth aspect of the present invention is a loading platform according to any one of the first to fifth aspects, wherein the stopper has a through-hole formed therein that penetrates in the fore-and-aft direction of the vehicle when in an upright position.

[0019] With a loading platform having this configuration, the light emitted by the light emitter is reflected off the surface of the stopper facing forward when the stopper is in the upright position, and can also travel to the rear of the vehicle through the through-hole formed in the stopper that penetrates in the fore-and-aft direction of the vehicle. Therefore, with a loading platform having this configuration, it is possible to notify people, such as pedestrians, behind the vehicle in dark places of the presence and movement of the loading platform. [Effects of the Invention]

[0020] According to the present invention, it is possible to provide a loading platform that allows an operator to easily recognize the raised state of the stopper even in a dark place. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a side view showing a freight vehicle provided with a loading platform lifting device; [Figure 2] 1 is a perspective view showing a receiving platform and a receiving platform lifting device for lifting and lowering the receiving platform according to an embodiment of the present invention; [Figure 3] 3 is a cross-sectional view taken along line AA in FIG. 2, showing a state in which the stopper of the loading platform is in an upright position. [Figure 4] 4 is a cross-sectional view showing a state in which the stopper in FIG. 3 is laid down. FIG. [Figure 5] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] Prior to describing the loading platform 10 according to the embodiment of the present invention, a brief description will be given of the cargo vehicle 1, the loading platform 10, and the loading platform lifting device 100 with reference to the drawings. In this specification, the front, rear, left, right, top and bottom directions are defined based on the cargo vehicle 1.

[0023] As shown in FIG. 1, the freight vehicle 1 includes a loading platform D, a loading platform 10, a loading platform lifting / lowering device 100, a rear bumper B, and the like.

[0024] The loading platform D is mounted on the frame of the freight vehicle 1.

[0025] As shown in Fig. 2, the rear bumper B is joined via stays to a subframe 5 to which the platform lifting device 100 is attached. The rear bumper B is divided into three sections in the vehicle width direction, and the arm device 50 of the platform lifting device 100 can pass through each gap.

[0026] (Load receiving platform lifting device) The loading platform lifting device 100 is a lifting device provided on the cargo vehicle 1, and is a device that assists in the work of removing cargo (not shown) from the loading platform D and the work of loading cargo onto the loading platform D. The loading platform lifting device 100 has a pair of left and right arm devices 50 that are supported on the cargo vehicle 1 so that they can rotate up and down, and a hydraulic device that drives the arm devices 50. The loading platform 10 is supported at the tip end of the pair of arm devices 50, and the loading platform 10 is raised and lowered by the arm devices 50 rotating up and down.

[0027] As shown in FIG. 1 , the receiving platform 10 can be used by switching between an upright position and a horizontal position. In the upright position, the receiving platform 10 is positioned so as to cover the rear of the platform D. The arm device 50 moves the receiving platform 10 from the upright position to a horizontal position, and the platform 10 becomes a horizontal platform positioned at the same height as the floor of the platform D. Furthermore, the arm device 50 lowers the receiving platform 10 from the height of the floor of the platform D to near the ground while maintaining the horizontal position, and then tilts the platform 10 so that its tip touches the ground. By this movement, the receiving platform 10 assists the worker in removing the package loaded on the platform D. When the worker loads the package onto the platform D, the receiving platform 10 performs the reverse movement. In this way, the receiving platform 10 is raised and lowered between the floor of the platform D and the ground. The configuration of the receiving platform 10 will be described later.

[0028] Each of the pair of left and right arm devices 50 has an arm and a hydraulic cylinder connected to the arm. The base end of the arm is rotatably supported on a subframe 5 connected to the vehicle frame. Pressurized oil is supplied to and discharged from the hydraulic cylinder by a hydraulic device. This causes the arm to be driven by the hydraulic cylinder. The hydraulic device has a hydraulic pump, which is operated by an operator. A loading platform 10 is connected to the tip of the arm. The arm is made up of multiple arms forming a parallel link. The loading platform 10 is able to move due to the arm's link mechanism, which is driven by the hydraulic cylinder.

[0029] (loading platform) As shown in FIGS. 2 to 4, the receiving platform 10 includes a receiving platform main body 12, a stopper device 20, and a light emitter 14.

[0030] The receiving platform main body 12 is a generally plate-shaped member that forms the receiving surface of the receiving platform 10. The receiving platform main body 12 has a known configuration in which multiple hollow aluminum alloy members with their longitudinal direction aligned with the vehicle width direction are assembled together. The receiving platform main body 12 forms a storage space 12S near its tip, i.e., near the rear end of the vehicle when the receiving platform main body 12 is in a horizontal position, for storing the stopper device 20 from the receiving surface side. The storage space 12S is a space that is recessed downward in the receiving platform main body 12 when in a horizontal position. The storage space 12S will be described in further detail below.

[0031] The stopper device 20 is provided on the loading platform main body 12 and prevents the wheels of the cart or the like from moving rearward of the vehicle, preventing the cart or the like from slipping off the loading platform 10. The stopper device 20 has a stopper 23, a reflector 24, a hinge 22 that rotatably connects the stopper 23 and the loading platform main body 12 to each other, and an axis 21 that serves as the rotation axis of the stopper 23.

[0032] As shown in FIGS. 3 and 4, the hinge 22 is attached to the loading platform main body 12 with a screw 22b on the vehicle rear side of the storage space 12S.

[0033] The stopper 23 is a generally plate-shaped member extending in the vehicle width direction. As shown in Figures 3 and 4, the stopper 23 can be switched between an upright state in which it stands above the load receiving surface of the load receiving platform main body 12 and a reclined state in which it fits along the load receiving surface of the load receiving platform main body 12 by rotating the front side of the vehicle up and down around the shaft 21. In this embodiment, the stopper 23 is manually switched between the upright state and the reclined state by an operator.

[0034] In the upright state, stopper 23 is capable of coming into contact with the wheels of a cart or the like moving on the receiving surface of receiving platform main body 12 to prevent the movement of the cart. As shown in Fig. 4, in the laid-down state, stopper 23 is stored in storage space 12S and forms a surface that is continuous with the receiving surface formed by receiving platform main body 12, allowing the cart or the like to move on the receiving surface of receiving platform main body 12. Tip 23a of stopper 23 is bent like a hook and is formed so that the wheels of a cart or the like can easily be locked.

[0035] The stopper 23 is formed with through-holes 23h that penetrate in the longitudinal direction of the vehicle when in the upright state. The through-holes 23h are formed to prevent contact with the hinge 22 when the stopper 23 rotates, and also to allow light emitted by the light emitter 14, which will be described later, to pass to the rear of the vehicle. As shown in FIG. 2, for example, four through-holes 23h are formed in the vehicle width direction, but it is sufficient that at least one or more through-holes 23h are formed. In this embodiment, the through-holes 23h are through holes.

[0036] Although not shown, the stopper 23 is configured so that its base end abuts the loading platform main body 12 and rotation is stopped so that it does not rise above a certain angle relative to the loading platform main body 12. Also, although not shown, the stopper device 20 is equipped with a locking mechanism that locks the rotation of the stopper 23 after the stopper 23 is switched from an upright state to a lying state or from a lying state to an upright state. Furthermore, although not shown, the stopper 23 is biased by a biasing member such as a spring so that it returns to the upright state when the locking by the locking mechanism is released.

[0037] As shown in Fig. 3, the reflector 24 is provided on the surface of the stopper 23 facing forward of the vehicle when the stopper 23 is in an upright state. The reflector 24 reflects light from the light emitter 14 (described below) toward the front of the vehicle. In this embodiment, the reflector 24 has a plate shape extending in the vehicle width direction. The reflector 24 is provided at a position closer to the tip side than the through-hole 23h of the stopper 23 and closer to the base end than the tip end 23a of the stopper 23.

[0038] As shown in Fig. 4, the storage space 12S stores the stopper 23 in a collapsed state. As shown in Figs. 3 and 4, the portion of the storage space 12S on the front side of the vehicle is formed with a recess 12Sd that is recessed toward the front of the vehicle. That is, of the inner wall surface 12i of the load receiving platform main body 12 that forms the storage space 12S, a recess 12Sd that is recessed toward the front of the vehicle is formed on the inner wall surface on the front side of the vehicle. As shown in Fig. 4, the recess 12Sd is a portion of the storage space 12S that is further forward of the tip end 23a of the stopper 23 in a collapsed state.

[0039] Furthermore, the shape of the storage space 12S is constant in the vehicle width direction. That is, the members forming the inner wall surface 12i of the loading platform main body 12 extend in the vehicle width direction, and the cross-sectional shape is constant at any position in the vehicle width direction. In particular, when the loading platform main body 12 is formed from an extruded aluminum material, it is easy to form the cross-sectional shape of the loading platform main body 12 constant.

[0040] The light emitter 14 emits light within the storage space 12S and is provided at a position on the vehicle front side within the storage space 12S, as shown in FIG. 3. Specifically, the light emitter 14 is provided in a recess 12Sd of the storage space 12S. As shown in FIG. 5, the light emitter 14 is a rod-shaped light emitter extending in the vehicle width direction. The light emitter 14 includes, for example, a plurality of LED elements 15 arranged in the vehicle width direction, a light guide plate 16 extending in the vehicle width direction and guiding light from the LED elements 15 in the vehicle front-rear, up-down, and width directions, and a power supply line 17 that supplies current to the LED elements 15. Power is supplied to the power supply line 17 from the battery of the cargo vehicle 1. The light emitter 14 may also include a switch mechanism that supplies current from the power supply line 17 to the LED elements 15 in response to switching of the stopper 23 from the retracted state to the upright state.

[0041] (Action and effect) According to the load receiving platform 10 of the present embodiment described above, the light emitter 14 is provided in the storage space 12S rather than directly on the stopper 23, thereby eliminating the effect of deterioration of the stopper 23 over time. The light emitted by the light emitter 14, which is provided on the inner wall surface of the vehicle front side of the inner wall surface 12i of the load receiving platform main body 12 that defines the storage space 12S, is reflected by the front-side surface of the stopper 23 when it is in the upright position, and travels toward the loading platform D. Furthermore, by providing the light emitter 14 on the front side of the vehicle rather than the rear side where the axis 21 of the stopper 23 is located, the degree of freedom in terms of installation space is increased, and the versatility of the light emitter 14 to be applied is also increased. This allows for stable warning, allows the function and size of the light emitter 14 to be appropriately adapted as needed, and allows the light emitted by the light emitter 14 to enter the field of view of a worker pushing a cart or the like toward the rear of the vehicle from within the loading platform D, allowing the worker to visually confirm that the stopper 23 is in the upright position. Therefore, with the load receiving platform 10, the worker can easily recognize the upright state of the stopper 23 even in a dark place.

[0042] Furthermore, according to the cargo receiving platform 10, the light emitting element 14 is not positioned in a position where it can be directly seen by a worker on the cargo platform D, for example when the light emitting element 14 is provided at the tip 23a of the stopper 23, and the worker can see the stopper 23 illuminated by the light emitting element 14, so the worker can recognize the upright state of the stopper 23 without being dazzled by the light from the light emitting element 14.

[0043] Furthermore, according to the cargo receiving platform 10, the light-emitting element 14 is provided in a recess 12Sd that is recessed toward the front of the vehicle from the inner wall surface 12i of the cargo receiving platform main body 12 that forms the storage space 12S, on the inner wall surface on the front side of the vehicle.Therefore, even if the stopper 23 is collapsed and stored in the storage space 12S, the light-emitting element 14 does not interfere with the stopper 23, and the light-emitting element 14 can be easily provided in the storage space of an existing cargo receiving platform.

[0044] Furthermore, according to the cargo receiving platform 10, the light-emitting element 14 extending in the vehicle width direction can illuminate most of the stopper 23 extending in the vehicle width direction, allowing the worker to more reliably recognize the upright state of the stopper 23.

[0045] Furthermore, according to the loading platform 10, it is possible to easily install a rod-shaped light-emitting element 14 extending in the vehicle width direction in a recess 12Sd formed in an inner wall surface 12i formed by a member having a constant cross-sectional shape at any position in the vehicle width direction.

[0046] Furthermore, according to the cargo receiving platform 10, a reflective material 24 is provided on the surface of the stopper 23 facing forward of the vehicle when it is in the upright position, so that the stopper 23 in the upright position can reflect more light toward the front of the vehicle, allowing the worker to more reliably recognize the upright position of the stopper 23.

[0047] Furthermore, with the loading platform 10, the light emitted by the light emitter 14 is reflected by the surface of the stopper 23 in the upright position facing the front of the vehicle, and can also travel to the rear of the vehicle through the through-hole 23h that penetrates the stopper 23 in the fore-and-aft direction of the vehicle. Therefore, with the loading platform 10, it is possible to notify people, such as pedestrians, behind the vehicle in a dark place of the presence and movement of the loading platform 10.

[0048] (Variation) Next, a modified example of the loading platform 10 according to the above embodiment will be described.

[0049] The light emitter 14 is not limited to a rod-like shape, and may be, for example, a circular light emitter configured using LED elements. In this case, it is preferable that a plurality of light emitters 14 are provided in the storage space 12S, lined up in the vehicle width direction.

[0050] Furthermore, the light emitter 14 is not limited to one configured using an LED element, but may be one configured using other light sources, for example, one configured using a fluorescent tube.

[0051] In the above embodiment, the case where the stopper 23 is provided with the reflective material 24 has been described, but the reflective material 24 is not an essential component of the loading platform 10, and the loading platform 10 may be configured such that the surface of the stopper 23 facing the front of the vehicle when in the upright position reflects light from the light emitter 14. Also, the stopper 23 is provided with a through-hole 23h that penetrates in the fore-and-aft direction of the vehicle when in the upright position, but in terms of the function of passing light emitted by the light emitter 14 to the rear of the vehicle, the shape of this through-hole 23h is not particularly limited and may be slit-shaped, for example. In a configuration in which multiple stoppers 23 are arranged in parallel along the longitudinal direction of the elongated light emitter 14, gaps may be provided between these stoppers 23, and the light emitted by the light emitter 14 may pass through these gaps.

[0052] Furthermore, the arm device 50 of the loading platform lifting / lowering device 100 is not limited to the above embodiment, and may be any device configured to lift and lower the loading platform 10. [Industrial Applicability]

[0053] The present invention can be applied, for example, to a loading platform that is raised and lowered between the floor of the loading platform of a cargo vehicle and the ground by a loading platform lifting device provided in the cargo vehicle. [Explanation of symbols]

[0054] 1 freight car 10 Loading platform 12 Loading platform body 12S storage space 12i Inner wall 12Sd recess 14 Luminous Object 23 Stopper 23h Penetration 24 Reflective material D Cargo bed

Claims

1. A cargo receiving platform that is raised and lowered between the floor surface of the cargo platform of the cargo vehicle and the ground by a cargo receiving platform lifting device provided on the cargo vehicle, A cargo receiving platform body, a stopper provided on the loading platform body, which can be switched between an upright state in which the loading platform body is upright above the loading surface of the loading platform body and a laid state in which the loading platform body is laid along the loading surface of the loading platform body by rotating the front side of the vehicle up and down; Equipped with The loading platform main body is formed with a storage space for storing the stopper in a collapsed state, A light emitting element is provided on an inner wall surface of the loading platform body that forms the storage space, the inner wall surface being on the front side of the vehicle, The stopper has a through-hole formed therein that penetrates in the front-rear direction of the vehicle when in an upright state. A loading platform characterized by:

2. 2. The loading platform of claim 1, a recess formed on the inner wall surface on the vehicle front side, The light emitter is provided in the recess. A loading platform characterized by:

3. The loading platform according to claim 1 or 2, The stopper extends in the vehicle width direction, The light emitter is a rod-shaped light emitter extending in the vehicle width direction. A loading platform characterized by:

4. 4. The loading platform according to claim 3, The member forming the inner wall surface of the loading platform body extends in the vehicle width direction and has a constant cross-sectional shape at any position in the vehicle width direction. A loading platform characterized by:

5. The loading platform according to any one of claims 1 to 4, A load-receiving platform characterized in that a reflective material that reflects light from the light-emitting body toward the front of the vehicle is provided on a surface of the stopper facing the front of the vehicle when the stopper is in an upright state.

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