Load-carrying platform member and truck

Abstract

To provide a load-carrying platform member that can separate a space on which cargoes are loaded from a space on which toll are loaded and can prevent an overload on a support tool disposed for separation and deformation of a load-carrying platform due to the overload, and a truck with the load-carrying platform member.SOLUTION: A load-carrying platform member 10 includes: a base plate 1; a floor plate 2; a plurality of support members 3; and a plurality of side wall members 4. The base plate 1 has a first main surface 1a. The floor plate 2 is arranged on the first main surface 1a of the base plate 1 at a distance from the first main surface 1a. The plurality of support members 3 connect the base plate 1 and the floor plate 2. The plurality of side wall members 4 are arranged on the outer periphery of the floor plate 2 and connected to the floor plate 2 so as to protrude upward when viewed from the floor plate 2. At least one of the side wall members 4 is rotatable about a connection portion 5 with the floor plate 2 as the center of rotation. The load-carrying platform member 1 further includes a fixing member 6 that fixes the plurality of side wall members 4 to each other.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a bed member and a truck. [Background technology]

[0002] Japanese Patent Laid-Open Publication No. 2007-22463 (Patent Document 1) discloses an auxiliary loading platform for a small truck. The auxiliary loading platform of Patent Document 1 solves the problem of making it easy to load and unload cargo into and from the loading platform even when it is covered with a hood. Specifically, in Patent Document 1, the loading platform of the truck is surrounded by side panels that can be opened and closed. In Patent Document 1, supports are placed on the four corners of the loading platform at intervals. In Patent Document 1, a shelf is provided on top of the supports. There is a gap between the shelf and the loading platform in the height direction. Loading and unloading cargo into and from the loading platform is possible through this gap. By having the loading platform and the shelf, it is possible to separate the space for loading cargo (earth, wood, etc.) from the space for loading tools. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2007-22463 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, the shelf is supported by only four supports. Therefore, when cargo is placed on the shelf, a large load is applied to the supports. As a result, the surface of the loading platform connected to the lower ends of the supports may become dented or deformed.

[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a loading platform member that can separate a space for loading cargo and a space for loading tools, and that can suppress excessive loads on supports provided for the separation and the resulting deformation of the loading platform, and a truck equipped with the loading platform member. [Means for solving the problem]

[0006] A bed member according to the present disclosure is mounted on the bed of a truck. The bed member includes a base plate, a floor plate, multiple support members, and multiple side wall members. The base plate has a first main surface. The floor plate is disposed on the first main surface of the base plate at a distance from the first main surface. The multiple support members connect the base plate and the floor plate. The multiple side wall members are disposed on the outer periphery of the floor plate and connected to the floor plate so as to protrude on the side opposite to the side on which the base plate is located when viewed from the floor plate. At least one of the multiple side wall members is rotatable around a connection portion with the floor plate as a rotation center. The bed member further includes a fixing member that fixes the multiple side wall members to each other. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide a loading platform member that can separate a space for loading luggage from a space for loading tools, and that can suppress excessive load on the support provided for the separation and the resulting deformation of the loading platform, as well as a truck equipped with the loading platform member. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view of a loading platform member according to the first embodiment. [Figure 2] 2 is a side view of the loading platform member according to the first embodiment, as viewed from the side. FIG. [Figure 3] 3 is a side view of the loading platform member according to the first embodiment as viewed from the rear. FIG. [Figure 4] FIG. 4 is a side view of a truck on which the bed member of FIGS. 1 to 3 is mounted, as viewed from the side. [Figure 5] FIG. 5 is a side view of the truck of FIG. 4 as seen from the rear. [Figure 6] FIG. 10 is a perspective view of a carrier member according to a modified example of the first embodiment. [Figure 7] FIG. 10 is a side view of a loading platform member according to a first example of the second embodiment, as viewed from the side. [Figure 8]FIG. 10 is a side view of a carrier member according to a second example of the second embodiment, as viewed from the side. [Figure 9] FIG. 11 is a plan view of a loading platform member according to a third embodiment, as viewed from above. [Figure 10] FIG. 10 is a side view of a loading platform member according to a fourth embodiment, as viewed from the side. [Figure 11] FIG. 11 is a side view of the bed member and truck according to the fifth embodiment, as viewed from the side. [Figure 12] FIG. 12 is a side view of a truck equipped with the bed member of FIG. 11, as viewed from the rear. DETAILED DESCRIPTION OF THE INVENTION

[0009] (Embodiment 1) <Configuration of cargo bed components> FIG. 1 is a perspective view of a bed member according to the first embodiment. FIG. 2 is a side view of the bed member according to the first embodiment as seen from the side. FIG. 3 is a side view of the bed member according to the first embodiment as seen from the rear. FIG. 4 is a side view of a truck on which the bed member of FIGS. 1 to 3 is mounted as seen from the side. FIG. 5 is a side view of the truck of FIG. 4 as seen from the rear. Referring to FIGS. 1 to 5, a bed member 10 according to the present embodiment is mounted on the bed of a truck. The bed member 10 mainly comprises a base plate 1, a floor plate 2, a plurality of support members 3, and a plurality of side wall members 4.

[0010] The base plate 1 is a plate-like member having a first main surface 1a. The base plate 1 has a rectangular shape in a plan view. The first main surface 1a extends horizontally when the bed member 10 is mounted on a truck. As such, hereinafter, the orientation of each part of the bed member 10 will be described based on the orientation when it is mounted on the truck. The first main surface 1a faces upward. The floor plate 2 is placed on the first main surface 1a of the base plate 1. At this time, the floor plate 2 is spaced apart from the first main surface 1a in the vertical direction. The spacing between the base plate 1 and the floor plate 2 creates a space 11 between the base plate 1 and the floor plate 2. The floor plate 2 has a rectangular shape in a plan view. Note that the base plate 1 and the floor plate 2 may each be a single member, or may be composed of multiple members. The planar shapes of the base plate 1 and the floor plate 2 may be shapes other than rectangular.

[0011] A plurality of support members 3 connect the base plate 1 and the floor plate 2. Specifically, for example, four support members 3 are provided. In this case, the support members 3 are provided at the four corners of the rectangular first main surface 1a. Here, the corners refer to the areas adjacent to each of the four vertices that form the rectangular shape of the first main surface 1a. The four support members 3 extend upward from the four corners of the first main surface 1a. Therefore, each of the four support members 3 is connected to the lower main surface of the floor plate 2. As described above, each of the four support members 3 connects the base plate 1 and the floor plate 2. However, the number of support members 3 is not limited to four. For example, as shown in Figures 1, 2, and 4, the support members 3 may be provided at the center of each side of the rectangular base plate 1. Alternatively, the support members 3 may be provided at the center of the rectangular base plate 1 in a plan view. In this case, the number of support members 3 is greater than four. For example, nine support members 3 may be provided by providing them at the center of each side and at the center in plan view. Alternatively, more than nine support members 3 may be provided by providing support members 3 at locations other than the corners, the center, and the center of each side.

[0012] The number of sidewall members 4 is, for example, four. However, the number of sidewall members 4 is not limited to this, and may be, for example, three. The sidewall members 4 are arranged on the outer periphery of the floorboard 2 and connected to the floorboard 2 so as to protrude on the side opposite to the side on which the base plate 1 is located when viewed from the floorboard 2. In other words, the sidewall members 4 are connected to the outer periphery of the floorboard 2 so as to protrude upward from the floorboard 2. The four sidewall members 4 are arranged so as to extend upward from each of the four sides that form the rectangular shape of the floorboard 2. Note that the sidewall members 4 may be connected to the floorboard 2 via a separate member. In this specification, the sidewall members 4 being connected to the floorboard 2 refers not only to the case where the sidewall members 4 are directly connected to the floorboard 2, but also to the case where the sidewall members 4 are connected to a separate member, such as a support column fixed to the floorboard 2 (the case where the sidewall members 4 are connected to the floorboard 2 via a separate member).

[0013] The sidewall member 4 includes a first sidewall member 4a, a second sidewall member 4b, a third sidewall member 4c, and a fourth sidewall member 4d. A modified version of the bed member 10 may not have the third sidewall member 4c. The first sidewall member 4a forms the left side surface. Similarly, the second sidewall member 4b forms the right side surface. The third sidewall member 4c forms the rear side surface, and the fourth sidewall member 4d forms the front side surface. The directions of the side surfaces of the sidewall members 4a to 4d are the directions that can be recognized by a person riding in a truck carrying the bed member 10 when facing the direction of travel. The base plate 1, floor plate 2, and support member 3 may each be made of any material, such as a metal such as iron, resin, or wood.

[0014] At least one of the four sidewall members 4 is rotatable around a connection point with the floorboard 2. That is, the lower end of the first sidewall member 4a is connected to the outer edge 2b of the floorboard 2 by a connecting member 5. The first sidewall member 4a is rotatable around the connecting member 5. The position of the connecting member 5 is the connection point. The connecting member 5 is, for example, a hinge. However, the connecting member 5 can be any member that allows the first sidewall member 4a to rotate around the position where the upper surface of the floorboard 2 intersects with the outer edge 2b. For example, only the sidewall members 4a, 4b, and 4c may be rotatably connected to the floorboard 2 by the connecting member 5. In this case, only the upper end of the front fourth sidewall member 4d may be located at the same position as the other sidewall members, but its lower end may extend so as to reach the first main surface 1a of the base plate 1. Alternatively, all of the sidewall members 4a, 4b, 4c, and 4d may be rotatably connected to the floorboard 2 by the connecting member 5. In the following description, it is assumed that the side wall members 4a, 4b, 4c, and 4d are in a closed state. The closed state means that the side wall members 4 protrude upward from the floor board 2 and are fixed by fixing members 6, which will be described next.

[0015] The bed member 10 further includes a fixing member 6. The fixing member 6 fixes the multiple sidewall members 4 to one another. Specifically, the fixing member 6 is provided at a position where the first sidewall member 4a and the fourth sidewall member 4d intersect. The fixing member provided at this position is referred to as the first fixing member 6a. The fixing member 6 has a first portion and a second portion. The second portion is approximately perpendicular to the first portion. The boundary between the first and second portions is a curved boundary. The first portion of the first fixing member 6a is a portion that contacts the side surface of the first sidewall member 4a. The second portion of the first fixing member 6a is a portion that contacts the side surface of the fourth sidewall member 4d, which is approximately perpendicular to the first sidewall member 4a. The first fixing member 6a is attached so as to surround the first sidewall member 4a and the fourth sidewall member 4d from the outside.

[0016] As described above, the fixing member 6 is provided at the position where the first side wall member 4a and the third side wall member 4c intersect. The fixing member provided at this position is referred to as the second fixing member 6b. The fixing member 6 is provided at the position where the third side wall member 4c and the second side wall member 4b intersect. The fixing member provided at this position is referred to as the third fixing member 6c. The fixing member 6 is provided at the position where the second side wall member 4b and the fourth side wall member 4d intersect. The fixing member provided at this position is referred to as the fourth fixing member 6d. Note that any configuration can be adopted for the fixing member 6 as long as it can secure adjacent side wall members 4 to each other. Four fixing members 6 are provided in FIG. 1 . However, this is not a limitation, and for example, eight or twelve fixing members 6 may be provided.

[0017] In a plan view, the base plate 1 has an outer edge 1b. The outer edge 1b is a side surface that is perpendicular to the first main surface 1a of the base plate 1. The outer edge 1b is the outermost surface of the base plate 1 in a plan view, facing outward. The floor plate 2 has an outer edge 2b. The outer edge 2b is a side surface that is perpendicular to the main surface of the floor plate 2. The outer edge 2b is the outermost surface of the floor plate 2 in a plan view, facing outward.

[0018] As shown in particular in Figures 2 and 3, the outer edge 2b of the floor plate 2 is located outside the outer edge 1b of the base plate 1. More specifically, the dimension of the base plate 1 in the front-to-rear direction of the track is defined as L1. The dimension of the floor plate 2 in the front-to-rear direction of the track is defined as L2. The centers of the base plate 1 and the floor plate 2 may be located at approximately the same position (approximately overlapping) in a plan view, or may be located at different positions. L2 is larger than L1. As a result, the outer edge 2b is located outside the outer edge 1b. Similarly, the dimension of the base plate 1 in the width direction of the track is defined as W1. The dimension of the floor plate 2 in the width direction of the track is defined as W2. W2 is larger than W1. Furthermore, the vertical dimension H0 of the side wall members 4a to 4d may all be the same. For example, the dimension H0 of the third side wall member 4c may be smaller than the dimensions H0 of the other side wall members 4a, 4b, and 4d.

[0019] 4 and 5, the truck 100 has a loading platform 101. The loading platform 101 is a portion on which cargo can be carried. Therefore, for example, a loading platform member 10 is installed on the loading platform 101. In other words, the base plate 1 is placed so that the bottom surface of the base plate 1 contacts the top surface of the loading platform 101.

[0020] The truck 100 has side panels 102 and a rear panel 103. The side panels 102 are provided on the left and right sides of the bed 101. The rear panel 103 is provided at the rear of the bed 101. The above directions are directions that a person riding in the truck can recognize when facing the direction of travel. The side panels 102 and the rear panel 103 are called "side panels." The side panels 102 and the rear panel 103 are openable and closable members that surround the bed 101 of the truck 100. The side panels 102 and the rear panel 103 are provided so as to surround the bed 101 from the left, right, and rear sides in a plan view. In the truck 100, the side panels 102 and the rear panel 103 are connected to the outer periphery of the bed 101 so as to protrude upward from the bed 101, similar to the side wall members 4. The side panels 102 and the rear panel 103 are rotatable around the connection portion on the outer periphery of the loading platform 101 as the center of rotation. The side panels 102 have an outer peripheral surface 102a and a top surface 102b. The outer peripheral surface 102a is the outermost surface of the side panels 102 in a plan view, facing outward. The top surface 102b is the uppermost surface of the side panels 102. When the side panels 102 are closed, the top surface 102b may be located approximately at the same vertical position as the bottom surface of the floor panel 2 of the loading platform member 10 installed on the loading platform 101. Alternatively, the top surface 102b may be located above or below the bottom surface of the floor panel 2 of the loading platform member 10 installed on the loading platform 101. Furthermore, in the left-right direction, the width of the floor panel 2 may be the same as the width of the side panels 102, or it may be wider or narrower than that. The state in which the side panels 102 are closed means that the side panels 102 protrude upward from the loading platform 101.

[0021] As shown in FIG. 5, the first side wall member 4a has an outer peripheral surface 4aa. The second side wall member 4b has an outer peripheral surface 4ba as a side surface. The outer peripheral surface 4aa is the outermost surface of the first side wall member 4a in a plan view and faces outward. The outer peripheral surface 4ba is the outermost surface of the second side wall member 4b in a plan view and faces outward. As shown in FIG. 5, the outer peripheral surface 4aa and the outer peripheral surface 4ba are substantially parallel to each other.

[0022] Figure 6 is a perspective view of a loading platform member according to a modification of the first embodiment. Referring to Figure 6, the loading platform member 10 of the modification has a configuration basically similar to that of the loading platform member 10 of Figure 1. Therefore, the same components as those in Figure 1 are given the same reference numerals, and unless particularly necessary, their description will not be repeated. This also applies to the following examples.

[0023] The loading platform member 10 of FIG. 6 differs from the loading platform member 10 of FIG. 1 in that it includes a cover sheet 7. The cover sheet 7 is installed at the edge of the space 11 between the base plate 1 and the floor panel 2. That is, the cover sheet 7 may be attached to the outer edge 2b of the floor panel 2. Alternatively, the cover sheet 7 may be attached to the bottom surface of the floor panel 2 in an area adjacent to the outer edge 2b of the floor panel 2 in a plan view. The material for the cover sheet 7 can be any material, such as resin, cloth, or leather. Preferably, the material for the cover sheet 7 is an easily bendable material, i.e., a flexible material. In this case, with the upper end of the cover sheet 7 fixed to the outer edge 2b of the floor panel 2 as described above, tools and the like can be easily inserted and removed from the space 11. The cover sheet 7 may also be made of a transparent or translucent material. In this case, the status inside the space 11 can be easily confirmed from outside the cover sheet 7. The cover sheet 7 may also be made of an opaque material. In this case, the interior of the space 11 can be hidden from the outside.

[0024] <Action and effect> A bed member 10 according to the present disclosure is mounted on the bed 101 of a truck 100. The bed member 10 includes a base plate 1, a floor plate 2, a plurality of support members 3, and a plurality of sidewall members 4. The base plate 1 has a first main surface 1a. The floor plate 2 is disposed on the first main surface 1a of the base plate 1 at a distance from the first main surface 1a. The plurality of support members 3 connect the base plate 1 and the floor plate 2. The plurality of sidewall members 4 are disposed on the outer periphery of the floor plate 2 and connected to the floor plate 2 so as to protrude on the side opposite to the side on which the base plate 1 is located when viewed from the floor plate 2. At least one of the plurality of sidewall members 4 is rotatable around a connection portion (connection member 5) with the floor plate 2 as the center of rotation. The bed member 10 further includes a fixing member 6 that fixes the plurality of sidewall members 4 to each other.

[0025] This allows cargo (lumber, soil, etc.) to be loaded on the floor board 2. On the other hand, tools and the like can be stored in the space 11 between the base board 1 and the floor board 2. In other words, the two can be loaded in separate spaces.

[0026] The base plate 1 comes into contact with the surface of the bed 101 of the truck 100. Therefore, when cargo is placed on the floor plate 2, the load can be distributed across the entire base plate 1 and transmitted to the surface of the bed 101. Therefore, when the support members 3 (such as supports) come into direct contact with the surface of the bed 101, the load of the cargo is concentrated at the contact points between the support members 3 and the surface of the bed 101, which can prevent problems such as deformation (denting) of the surface of the bed 101.

[0027] In addition, the side wall members 4 hold the cargo on the floor board 2, ensuring a sufficient loading capacity. Furthermore, at least one of the side wall members 4 is rotatably connected to the floor board 2. Therefore, by rotating the side wall member 4, the surface of the floor board 2 can be seen. By rotating the side wall member 4 to the open position, loading cargo onto the floor board 2 becomes easier.

[0028] In the above-mentioned bed member 10, the outer edge 2b of the floor panel 2 may be located outside the outer edge 1b of the base panel 1 in a plan view. In this way, the end of the floor panel 2 is located outside the end of the base panel 1, thereby preventing rain and the like from entering the space between the base panel 1 and the floor panel 2. In addition, the size of the floor panel 2 is increased so that the end of the floor panel 2 is located on the top surface 102b of the side panel 102 of the truck 100. In this way, when the bed member 10 is loaded on the bed 101 of the truck 100, the side panel 102 can block the space 11 between the base panel 1 and the floor panel 2 from the outside. This more reliably prevents rain and the like from entering the space 11.

[0029] The loading platform member 10 may have a cover sheet 7 installed at the end of the space 11 between the base plate 1 and the floor plate 2. The cover sheet 7 can prevent rain, dust, etc. from entering the space 11 between the base plate 1 and the floor plate 2.

[0030] In addition to the above, the bed member 10 according to this embodiment may have a recess 4e that is partially cut downward from the upper top surface of the sidewall member 4. In FIGS. 1, 3, and 5, the recess 4e is formed, for example, by cutting out the center of the width of the top surface of the third sidewall member 4c. The vertical dimension (depth) of the recess 4e is approximately 1 / 3 of the vertical dimension of the third sidewall member 4c, but this dimension is arbitrary. For example, the depth of the recess 4e may exceed 1 / 3, exceed 2 / 3, or be 1 / 3 or less of the vertical dimension of the third sidewall member 4c. The horizontal dimension (width) of the recess 4e (width direction of the truck 100) is approximately 1 / 3 of the width dimension of the third sidewall member 4c, but this dimension is arbitrary. For example, the width of the recess 4e may exceed 2 / 3, be 2 / 3 or less, be 1 / 2 or less, or be 1 / 3 or less of the width dimension of the third sidewall member 4c. A similar recess 4e may be formed in the fourth side wall member 4d facing the third side wall member 4c. It is also preferable that a similar recess 4e be formed in the first side wall member 4a and the second side wall member 4b. This allows a log or other elongated member to be placed (extending horizontally) in the recess 4e.

[0031] 5, it is preferable that the outer peripheral surface 4aa and the outer peripheral surface 102a of the side plate 102 directly below it are arranged so as to be flush with each other. In this way, the side plate 102 is arranged directly below the side wall member 4. This further enhances the effect of both the side wall member 4 and the side plate 102 in preventing rain and other elements from entering the space 11.

[0032] A truck 100 according to the present disclosure has a bed 101. The truck 100 has any one of the bed members 10 described above installed on the bed 101. This allows tools and the like to be stored between the base plate 1 and the floor plate 2. Furthermore, as described above, a highly convenient truck 100 can be provided in which cargo such as lumber and materials can be loaded onto the floor plate 2.

[0033] (Embodiment 2) <Configuration of cargo bed components> FIG. 7 is a side view of a bed member according to a first example of the second embodiment. Referring to FIG. 7, the bed member 10 of this embodiment has a door portion 4f formed in a first sidewall member 4a, which is a sidewall member with a door portion. This is where this embodiment differs from the first embodiment. The door portion 4f is a plate-like member arranged to fit into a recess 4e (see FIG. 1) that is partially cut downward from the upper top surface of the first sidewall member 4a. The surface of the door portion 4f is substantially flush with the surface of the first sidewall member 4a (the portion other than the door portion 4f). In FIG. 7, the left-right dimension of the door portion 4f (the front-rear direction of the truck 100) is approximately one-third of the left-right dimension of the first sidewall member 4a. The left-right dimension of the door portion 4f may be more than two-thirds, two-thirds or less, one-half or less, or one-third or less of the left-right dimension of the first sidewall member 4a. In FIG. 7, the vertical dimension of the door portion 4f is approximately half the vertical dimension of the first side wall member 4a. The vertical dimension of the door portion 4f may be more than two-thirds, less than two-thirds, less than one-half, or less than one-third of the vertical dimension of the first side wall member 4a. The door portion 4f may be formed in the second side wall member 4b, the third side wall member 4c, or the fourth side wall member 4d. The door portion 4f is rotatable around a connection portion with the first side wall member 4a (a portion other than the door portion 4f) as the rotation center. In other words, the lower end of the door portion 4f may be connected to the outward surface of the first side wall member 4a by the connecting member 5. The left-right position of the door portion 4f relative to the side wall member 4 is arbitrary.

[0034] The door portion 4f may be fixed to the sidewall member 4 (the first sidewall member 4a in FIG. 7) by a fixing member 6. Specifically, the fifth fixing member 6e is disposed so as to straddle the left end (the end on the front side of the track 100) of the door portion 4f when viewed as shown in FIG. 7 and the outward surface of the first sidewall member 4a. Similarly, the sixth fixing member 6f is disposed so as to straddle the right end (the end on the rear side of the track 100) of the door portion 4f when viewed as shown in FIG. 7 and the outward surface of the first sidewall member 4a. The fixing members 6e, 6f are plate-shaped and can open and close the door portion 4f by sliding them, for example, left and right in FIG. 7. In other words, sliding the fixing members 6e, 6f can switch the door portion 4f between a movable state and a fixed state. The fixing members 6e, 6f can have any configuration as long as they can fix the door portion 4f to the sidewall member 4. However, the method of fixing the door portion 4f to the sidewall member 4 is not limited to the above (FIG. 7). For example, only the areas adjacent to the left, right, and bottom of the door portion 4f may have a double structure in which two plates are stacked on top of each other in the side wall member 4, and the door portion 4f may be inserted between the two plates. In this case, the double structure may be formed in areas of approximately 4 cm width on each of the left, right, and bottom sides of the door portion 4f.

[0035] FIG. 8 is a side view of a bed member according to a second example of the second embodiment. Referring to FIG. 8, the door portion 4f of the second example is formed to extend across the entire left-right direction of the first sidewall member 4a (the front-rear direction of the truck 100). A fifth fixing member 6e and a sixth fixing member 6f are provided at both ends in the left-right direction. The fifth fixing member 6e in FIG. 8 is provided directly above the first fixing member 6a. The sixth fixing member 6f in FIG. 8 is provided directly above the second fixing member 6b. The fifth fixing member 6e and the sixth fixing member 6f in FIG. 8 have a shape with a curved boundary, similar to the first fixing member 6a and the second fixing member 6b. The fifth fixing member 6e is attached so as to surround the door portion 4f and the fourth sidewall member 4d from the outside. The sixth fixing member 6f is attached so as to surround the door portion 4f and the third sidewall member 4c from the outside. The door portion 4f in Fig. 8 is also rotatable around the connection portion with the first side wall member 4a (portion other than the door portion 4f). That is, the lower end of the door portion 4f in Fig. 8 may be connected to the outward surface of the first side wall member 4a by the connection member 5. Like the door portion 4f in Fig. 7, the door portion 4f in Fig. 8 is not limited to being formed on the first side wall member 4a, but may also be formed on the second side wall member 4b, the third side wall member 4c, or the fourth side wall member 4d.

[0036] <Action and effect> In the above-described loading platform member 10, the plurality of side wall members 4 may include a side wall member with a door portion (first side wall member 4a) formed with an openable door portion 4f. In this way, the loading and unloading of luggage loaded on the floor board 2 can be performed with the small door portion 4f open. This improves the workability of the loading and unloading of luggage.

[0037] (Embodiment 3) <Configuration of cargo bed components> Figure 9 is a plan view of a loading platform member according to embodiment 3, as viewed from above. Referring to Figure 9, in loading platform member 10 of this embodiment, at least one of the side wall members 4 has a bent portion 61. In this respect, this embodiment differs from embodiment 1, in which all of the side wall members 4 have a flat plate shape.

[0038] In FIG. 9, of the four sidewall members 4, three—the first sidewall member 4a, the second sidewall member 4b, and the fourth sidewall member 4d—have a flat portion and a bent portion 61 where the direction of expansion of the flat portion changes. Therefore, the first sidewall member 4a, the second sidewall member 4b, and the fourth sidewall member 4d are sidewall members with bent portions. In contrast, the third sidewall member 4c is entirely flat and does not have a bent portion 61. As a result, as shown in FIG. 9, the bent portions 61 of the first sidewall member 4a, the second sidewall member 4b, and the fourth sidewall member 4d form corners of the entire loading platform member 10. Therefore, the bent portions 61 substantially overlap the four rectangular corners of the floor panel 2 in a plan view. Furthermore, at the boundaries between the sidewall members 4, the outer peripheral surfaces of adjacent sidewall members 4 are arranged to extend substantially on the same plane. A fixing member 6 is installed at the boundary. As another example, of the four side wall members 4, only two, the first side wall member 4a and the second side wall member 4b, may have a flat plate-shaped portion and a bent portion 61 where the direction of expansion of the flat plate changes. In other words, in this case, the other two side wall members 4c and 4d have only flat plate-shaped portions. As yet another example, the fourth side wall member 4d may have only a flat plate-shaped portion, the first side wall member 4a and the second side wall member 4b each have one bent portion 61, and the third side wall member 4c has two bent portions 61.

[0039] In FIG. 9 , the side wall members 4 are connected only by the fixing member 6. However, the side wall members 4 may be connected and fixed by additionally using a reinforcing plate, as described below. For example, at the connection portion between the fourth side wall member 4d and the first side wall member 4a in FIG. 9 , a reinforcing plate is attached to the inner peripheral surface of the fourth side wall member 4d. The reinforcing plate is prepared so that its width is approximately 10 cm and its height is approximately the same as or smaller than that of the fourth side wall member 4d. This reinforcing plate is adhered to the fourth side wall member 4d. A portion of the reinforcing plate with a width of approximately 5 cm is adhered to the fourth side wall member 4d. When the first side wall member 4a is closed, the first side wall member 4a is adjacent to the portion of the reinforcing plate other than the portion adhered to the fourth side wall member 4d. When the fourth side wall member 4d and the first side wall member 4a are connected and fixed using the first fixing member 6a, the presence of the reinforcing plate increases the rigidity of the connected and fixed portion compared to when the reinforcing plate is not present. Similarly, at the connection portion between the first side wall member 4a and the third side wall member 4c, a reinforcing plate is adhered to the inner circumferential surface of the first side wall member 4a. At the connection portion between the fourth side wall member 4d and the second side wall member 4b, a reinforcing plate is adhered to the inner circumferential surface of the fourth side wall member 4d. At the connection portion between the second side wall member 4b and the third side wall member 4c, a reinforcing plate is adhered to the inner circumferential surface of the second side wall member 4b.

[0040] <Action and effect> In the above-described bed member 10, the plurality of side wall members 4 may include bent portion-equipped side wall members (first side wall member 4a, second side wall member 4b, and fourth side wall member 4d) each having a bent portion 61 formed therein. By including the bent portion 61, the rigidity of the first side wall member 4a and the like can be increased compared to when the bent portion 61 is not included. This can improve the strength of the first side wall member 4a and the like.

[0041] Furthermore, the fixing members 6 are provided at the boundary portions of the side wall members 4. Therefore, in the configuration of FIG. 9, the fixing members 6 (6a to 6d) are provided at the flat portions rather than at the bent portions 61. The fixing members 6a to 6d in FIG. 9 are plate-shaped like the fifth fixing member 6e in FIG. 7. The fixing member 6 shown in FIG. 9 can be switched between a state in which the first side wall member 4a or the like can be opened and closed and a fixed state by sliding it, for example, left and right in FIG. The plate-shaped fixing members 6a to 6d rest on the flat portions of the side wall members 4. Therefore, the fixing member 6 can be designed more easily than when it has a shape with a bent boundary as shown in FIG. 1.

[0042] (Fourth embodiment) <Configuration of cargo bed components> FIG. 10 is a side view of a bed member according to the fourth embodiment. Referring to FIG. 10, the bed member 10 of this embodiment has a storage box 8 installed on the upper surface of the floor panel 2, aligned with the sidewall members 4. This is where the present embodiment differs from the first embodiment. The storage box 8 is preferably provided on the front side of the bed member 10. In this case, the sidewall members 4 only have three members: the first sidewall member 4a, the second sidewall member 4b, and the third sidewall member 4c shown in FIG. 1. The bed member 10 of FIG. 10 does not necessarily have to have the fourth sidewall member 4d. In this embodiment, the length of the first sidewall member 4a and the second sidewall member 4b in the front-to-rear direction is shortened by the amount of the storage box 8.

[0043] The storage box 8 may have a main body 8a and an opening / closing door 8b. The main body 8a is a box-shaped area of the storage box 8 that can actually store tools and the like. The opening / closing door 8b is a door attached to the main body 8a. By opening and closing the opening / closing door 8b, desired items can be put in and taken out of the main body 8a.

[0044] <Action and effect> As shown in Figure 10, the loading platform member 10 may have a storage box 8. In this way, the area on the floor board 2, which is the space for loading luggage, can be further divided into two areas. This allows for more detailed sorting of storage, for example, by storing small packages in the storage box 8 and larger packages in the area surrounded by the side wall member 4.

[0045] In each of the above embodiments, the outer edge 1b of the base plate 1 is located inside the outer peripheral surface of the fourth side wall member 4d. In other words, the fourth side wall member 4d at the forefront of the bed member 10 mounted on the truck 100 protrudes forward from the outer peripheral edge 1b of the front of the truck 100. However, as a modified example, the outer peripheral surface of the fourth side wall member 4d at the forefront of the bed member 10 mounted on the truck 100 may be flush with the outer peripheral edge 1b of the front of the truck 100. This allows the base plate 1 to cover almost the entire bed 101 when mounted on the bed 101. This eliminates any step between the bed 101 and the base plate 1, improving safety during work.

[0046] (Embodiment 5) FIG. 11 is a side view of a bed member and a truck according to the fifth embodiment. Referring to FIG. 11, this embodiment shows the ideal shape and dimensions of each part of the bed member. Referring to FIG. 11, a guard frame 104 is provided behind the driver's seat of the truck 100. The guard frame 104 is positioned facing the bed member 10 mounted thereon, as indicated by the arrow in FIG. 11. The bed member 10 in FIG. 11 has the same shape and dimensions as the bed member 10 in FIG. 9 (Embodiment 3). The bed member 10 is provided with a hook portion 14. The hook portion 14 is provided so as to extend from the top of the fourth side wall member 4d that forms the front side surface. It is preferable that the hook portion 14 has a portion that extends horizontally and a portion that bends from the horizontal portion and extends vertically. The hook portion 14 can be hooked onto the top of the guard frame 104. The hook portion 14 can prevent the bed member 10 from sliding on the bed 101 when the truck 100 is in operation.

[0047] FIG. 12 is a side view of the truck with the loading platform member of FIG. 11 mounted thereon, as seen from the rear. Referring to FIG. 12, the third side wall member 4c is shown in an open state. As shown in FIG. 12, the fourth side wall member 4d of the loading platform member 10 has a recess 105, which is partially cut away from the top downward. A work light 106 is attached to the guard frame 104. The recess 105 allows the light from the work light 106 to be directed into the loading platform member 10 or the rear of the truck 100. Examples of dimensions of each part of the loading platform member 10 are shown in FIGS. 11 and 12, and are expressed in centimeters. In FIGS. 11 and 12, examples of the dimensions of each of the above-mentioned parts are indicated in parentheses. Although not shown, for example, the distance between the left support member 3 and the right support member 3 of the loading platform member 10 is 128.0 cm. The left-right dimension of the loading platform member 10 is, for example, 147.5 cm. The left-right dimension of the recess 4e is, for example, 43.0 cm. The dimension of the portion of the first side wall member 4a extending left-right from the bent portion 61 is, for example, 14.0 cm. Note that the length L1 in the front-rear direction of the upper portion of the bed member 10 shown in FIG. 11 is longer than the length L2 of the lower portion. The length L3 in the front-rear direction of the fourth side wall member 4d in a side view may be 0.05 to 0.4 times the length L1. The height H1 of the portion of the bed member 10 above the floor panel 2 is approximately three times the height H2 of the portion below the floor panel 2. Note that the height H1 may be greater than or equal to the height H2. The height H1 is the dimension such that the top of the bed member 10 is equal to or less than the vehicle height of the truck 100 when the bed member 10 is mounted on the truck 100. Length L4, which is the width of recess 105, is shorter than length L5, which is the distance from the outer peripheral surface of side wall member 4 (second side wall member 4b), but length L4 may be longer than length L5. Depth H3 of recess 105 is greater than length L4, but depth H3 may be smaller than length L4. Depth H3 may be 25 cm or more and ½ or less of height H1. Length L4 may be 13 cm or more and ⅓ or less of left-right dimension W2 (see FIG. 3) of bed member 10.

[0048] (Other examples) Three other examples will be described. Although not shown, as a first example, the sidewall member 4 may have a so-called double-door structure. Specifically, for example, vertically extending pillars are fixed directly above each of the four rectangular corners of the floorboard 2. The sidewall member 4 is rotatably attached to each of the four pillars. In other words, the sidewall member 4 is connected to the floorboard 2 via a pillar as a separate member. The first sidewall member 4a is divided into two at the center in the left-right direction (the front-rear direction of the truck 100). The same is true for the second sidewall member 4b to the fourth sidewall member 4d. Each of the two divided sidewall members moves with the pillar as a fulcrum. In other words, each divided sidewall member rotates horizontally around the pillar, which is the connection part with the floorboard 2. Note that if a connecting member such as a hinge is used to connect each divided sidewall member to the pillar, each sidewall member rotates horizontally around the connecting member as the rotation center. This allows the sidewall members to open and close at the center in the left-right direction. This facilitates the opening and closing of the side wall members. The support pillars may be provided only at the two corners of the floor panel 2 that are located on the rear side of the track. In this case, the fourth side wall member 4d is fixed to the floor panel 2. When the first side wall member 4a or the second side wall member 4b has the above-mentioned double-door configuration, the portion of the first side wall member 4a or the second side wall member 4b that is located on the front side of the track may be rotatably connected to the end of the fourth side wall member 4d. In other words, the fourth side wall member 4d functions as the support pillars.

[0049] Although not shown, in the second example, the sidewall member 4 is attached to a vertically extending support column, as in the first example. The sidewall member 4 opens and closes by rotating around the support column. However, the sidewall member 4 in the second example differs from the first example in that it is not divided into two parts at the center in the left-right direction. In other words, in the second example, a single member constitutes the entire first sidewall member 4a, etc. This configuration is also acceptable. In this case, the end of the sidewall member opposite the side fixed to the support column in the left-right direction moves to rotate around the support column. For example, when the right end of the first sidewall member 4a is attached to the support column, the left end of the first sidewall member 4a moves to rotate. This allows both a one-sided opening state and a closed state of the sidewall member to be realized. This also makes it easier to open and close the sidewall member.

[0050] As a third example, the side wall member 4 of the loading platform member 10 may be formed with an attachment portion for attaching a ladder, footrest, or the like. The attachment portion may be a recess or storage portion formed for hanging the ladder, footrest, or the like. This makes it easy to attach a ladder, etc. to the side wall member 4, further increasing the convenience of the loading platform member 10.

[0051] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. Unless there is a contradiction, at least two of the embodiments disclosed herein may be combined. The basic scope of the present disclosure is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0052] Various aspects of the present disclosure are summarized below as appendices.

[0053] (Appendix 1) A bed member to be mounted on a bed of a truck, a base plate having a first main surface; a floor plate disposed on the first main surface of the base plate at an interval from the first main surface; a plurality of support members connecting the base plate and the floor plate; a plurality of side wall members disposed on the outer periphery of the floor plate and connected to the floor plate so as to protrude on the side opposite to the side on which the base plate is located as viewed from the floor plate; At least one of the plurality of side wall members is rotatable about a connection portion with the floor panel as a rotation center, The carrier member further includes a fastening member that fastens the plurality of sidewall members to one another.

[0054] (Appendix 2) 2. The cargo bed member according to claim 1, wherein, in a plan view, the outer edge of the floor plate is positioned outside the outer edge of the base plate.

[0055] (Appendix 3) 3. The cargo bed member according to claim 1 or 2, wherein a cover sheet is installed at the end of the space between the base plate and the floor plate.

[0056] (Appendix 4) 4. The loading platform member according to any one of claims 1 to 3, wherein the plurality of side wall members include a side wall member with a door portion formed thereon that can be opened and closed.

[0057] (Appendix 5) 5. The carrier member according to any one of claims 1 to 4, wherein the plurality of side wall members include a side wall member with a bent portion formed therein.

[0058] (Appendix 6) A truck having a loading platform, A truck having a bed member according to any one of appendices 1 to 5 installed on the bed. [Explanation of symbols]

[0059] 1 base plate, 1a first main surface, 1b outer edge, 2 floor plate, 2b outer edge, 3 support member, 4 side wall member, 4a first side wall member, 4aa outer peripheral surface, 4b second side wall member, 4ba outer peripheral surface, 4c third side wall member, 4d fourth side wall member, 4e recess, 4f door portion, 5 connecting member, 6 fixing member, 6a first fixing member, 6b second fixing member, 6c third fixing member, 6d fourth fixing member, 6e fifth fixing member, 6f sixth fixing member, 7 cover sheet, 8 storage box, 8a main body portion, 8b opening and closing door, 10 loading platform member, 11 space, 14 hook portion, 61 bending portion (corner portion), 100 truck, 101 loading platform, 102 side plate, 102a outer peripheral surface, 102b top surface, 103 rear plate, 104 Guard frame, 105 recess, 106 work light.

Claims

1. A bed member to be mounted on a bed of a truck, a base plate having a first major surface; a floor plate disposed on the first main surface of the base plate at an interval from the first main surface; a plurality of support members connecting the base plate and the floor plate; a plurality of side wall members disposed on the outer periphery of the floor plate and connected to the floor plate so as to protrude on the side opposite to the side on which the base plate is located as viewed from the floor plate; At least one of the plurality of side wall members is rotatable about a connection portion with the floor panel as a rotation center, The carrier member further includes a fastening member that fastens the plurality of sidewall members to one another.

2. The cargo bed member according to claim 1, wherein an outer edge of the floor plate is positioned outside an outer edge of the base plate in a plan view.

3. 3. The cargo bed member according to claim 1, wherein a cover sheet is provided at an end of the space between the base plate and the floor plate.

4. The cargo bed member according to claim 1 or 2, wherein the plurality of side wall members include a side wall member with a door portion formed thereon that can be opened and closed.

5. The cargo bed member according to claim 1 or 2, wherein the plurality of side wall members include a side wall member with a bent portion formed therein.

6. A truck having a loading platform, A truck having the loading platform member according to claim 1 or 2 installed on the loading platform.

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