Camping shell

Abstract

Regarding the camping shell, in addition to being easy to assemble and disassemble, the goal is to make it low-cost and easy to change the height of the shell. [Solution] In a camping shell 2A that constitutes a camper van 1A by connecting panel members in a roughly rectangular parallelepiped shape and mounting it on the bed of a truck, the front wall, rear wall, right side wall, and left side wall are divided into an upper part and a lower part at an intermediate position in the vertical direction, with the upper part forming the upper shell 21 together with the roof, and the lower part forming the lower shell 22 together with the floor. The upper shell 21 is slightly larger in the front-rear and left-right directions than the lower shell 22, and its inner circumferential surface is close to or in close contact with the outer circumferential surface of the lower shell 22. It is possible to slide it up and down while covering a predetermined range from its upper end, and together with the lower shell 22 it forms a box-like structure, and the height of the shell can be changed between a low state with the upper shell 21 lowered and a high state with the upper shell 21 raised.

Description

Technical Field

[0001] The present invention relates to a camping shell that is mounted on the cargo bed of a truck vehicle and constitutes a living room portion as a camper, and particularly relates to a camping shell whose shape can be changed between a low state suitable for traveling and a high state that is expanded upward and suitable for camping.

Background Art

[0002] In recent years, campers equipped with living spaces in vehicles have become widespread as a means for enjoying outdoor life in various locations, and vehicles with various functions suitable for camping use have come to be sold. However, such campers tend to have significantly larger overall size and weight than ordinary vehicles, since they are provided with a living room portion that allows staying overnight separately from the driver's seat portion.

[0003] For this reason, the purchase cost and maintenance cost of the vehicle are likely to be extra, and the high cost hurdle for enjoying it as casual leisure has become a problem. In addition, due to its size, it often does not fit in a normal parking space or is difficult to pass on narrow roads, making it unsuitable for daily use in many cases. Thus, it is necessary to own a vehicle for daily use separately from the hobby camper, which leads to the further problem of an increased maintenance cost burden.

[0004] Accordingly, an increasing number of vehicles enable switching of the vehicle form between daily or business use and camping use by mounting a camping shell with a living space formed inside on the cargo bed of a truck vehicle. In this case, if the camping shell is unloaded from the cargo bed, the vehicle becomes an ordinary truck, which is in a state suitable for normal use. However, such a camping shell itself has a considerably large volume and weight, so special equipment such as a forklift or a crane is required for loading and unloading it onto and from the cargo bed, and it is also necessary to secure storage space after the shell is unloaded.

[0005] In contrast, Japanese Patent Publication No. 7304616 proposes a camping shell in which the living space is formed by connecting and fixing the edges of the panel members that make up the floor, left wall, right wall, front wall, rear wall, and roof to each other. The camping shell is equipped with pull-in fittings at the connecting parts of each panel member, allowing for easy connection and disconnection of the panel members in a simple procedure, and enabling relatively easy assembly and disassembly. As a result, the shell can be assembled, disassembled, and loaded and unloaded onto a truck bed without requiring specialized knowledge or special equipment, and after disassembly, it can be stored in a relatively small space.

[0006] On the other hand, campervans, including the aforementioned camping shell, are ideally designed to have enough height inside for a person to stand up to ensure comfort during camping. However, this height often prevents them from using multi-story parking garages, making parking difficult. Furthermore, even relatively lightweight and compact campervans, if they have a shell that a person can stand up in, are susceptible to strong crosswinds while driving due to their large surface area and high center of gravity, making it difficult to ensure driving stability.

[0007] Therefore, a pop-up camping shell structure has been proposed, such as the camping shell described in Japanese Patent Publication No. 11-115619, which has a pop-up roof and a peripheral wall section connected to it that can be tilted inward in a predetermined range from the upper end. By lifting the pop-up roof, the tilted peripheral wall section stands up, expanding the living space upward. The upper predetermined range of the camping shell is folded down to reduce its height when driving, and it pops up and expands upward when in use.

[0008] However, with a structure that raises the roof from a tilted position on the upper side of the surrounding wall, the range of expansion from the height during driving is limited, and the expansion operation is not easy to perform manually. In addition, the structure for popping up requires numerous links and is complex, which increases manufacturing costs. Furthermore, it is difficult for amateurs to easily assemble and disassemble a camping shell with such a complex structure. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] Patent No. 7304616 [Patent Document 2] Japanese Patent Application Publication No. 11-115619 [Overview of the Initiative] [Problems that the invention aims to solve]

[0010] The present invention aims to solve the above-mentioned problems, and its objective is to provide a camping shell that can be easily assembled and disassembled, as well as that whose height can be easily changed at low cost. [Means for solving the problem]

[0011] Therefore, the present invention relates to a camping shell that forms the living space of a camper van when mounted on the cargo bed of a truck, comprising panel members constituting the front wall, rear wall, right side wall, left side wall, roof, and floor, connected in a substantially rectangular parallelepiped shape to form a living space inside, wherein the front wall, rear wall, right side wall, and left side wall are divided into an upper part and a lower part at an intermediate position in the vertical direction, forming an upper peripheral wall and a lower peripheral wall, respectively, wherein the upper part together with the roof constitutes the upper shell, and the lower part together with the floor constitutes the lower shell, wherein the upper shell is slightly larger in the front-rear, left-right and front-back directions than the lower shell, and its inner peripheral surface is close to or in close contact with the outer peripheral surface of the lower shell, covering a predetermined range from the upper end of the lower shell, and is capable of sliding vertically, thereby exhibiting a box-like structure as a whole together with the lower shell, and the height of the shell can be changed between a low state with the upper shell lowered to a predetermined position when not in use for camping and a high state with the upper shell raised to a predetermined position when in use for camping.

[0012] By adopting this method of constructing a camping shell by connecting panel members and placing it on the truck bed, assembly and disassembly become relatively easy. Furthermore, by dividing the members that make up the peripheral wall into upper and lower shells, and adopting a box-like structure in which the upper shell that covers the outer perimeter of the lower shell can slide up and down, even with a simple and relatively low-cost construction, it is possible to ensure driving stability by lowering the upper shell when the shell is not in use, such as when driving, and easily ensure the comfort of the living space by raising the upper shell when using it for camping.

[0013] Furthermore, in this camping shell, the right and left walls of the upper shell are positioned such that, at their lowest position, their lower ends are close to or resting on the upper ends of the left and right side panels of the truck on which it is mounted. The parts of the upper shell that do not have upright walls together with the left and right side panels form a box-like shape, with the left and right side panels forming the left and right side parts of the main body, the part of the lower shell that protrudes from the upper end of the side panel forming the rising part of the inner box, and the upper shell forming the lid. This design ensures that the camping shell mounted on the truck bed does not significantly exceed the width of the truck, while maximizing the width of the living space above the upper shell. Moreover, at its lowest point, the upper shell is close to the upper end of the side panel and almost flush with it, giving it an integrated appearance with the truck bed, thus improving the aesthetics of the vehicle when not in use for camping.

[0014] Furthermore, in the aforementioned camping shell, the panel members constituting the right and left walls are fixed at their top, bottom, left, and right ends within the inner space of a frame formed by connecting rectangular metal pipes in a rectangular shape with joints, forming a part of the outer surface of the upper and lower shells, respectively. These are made by attaching rectangular corrugated plastic sheets, larger in length and width than the frame, to both the front and back surfaces of a frame made of rectangular timbers, and connecting grooves with the same width as the thickness of the frame are formed on the top, bottom, left, and right ends. If these are the characteristics, then the panel members have a three-layer structure consisting of two sheets of corrugated plastic containing a large amount of air and an internal space formed inside the frame, making it possible to easily construct a camping shell with excellent heat insulation and soundproofing even if the surrounding walls are not thick. Moreover, by providing ridges with the same width as the grooves in the longitudinal direction on the panel member fixing surface side of the metal pipes constituting the frame, the panel members can be connected and separated very easily.

[0015] In this case, the metal pipes that make up the pillars at the four corners of the lower shell have rod-shaped members with a smaller outer diameter inside. These rod-shaped members function as lift bars that extend, retract, and stop telescopically from the upper end of the metal pipes by an electric drive mechanism. With the tip of the rod-shaped member fixed to predetermined positions at the four corners inside the upper shell, the upper shell is electrically moved up and down by operating the electric drive mechanism. This feature makes it easy for one person to move the upper shell up and down.

[0016] Alternatively, if the upper shell has panel members that form the roof, and rectangular prism-shaped slide rails are interposed between them and metal pipes that are installed in the front-to-back direction at the upper ends of the left and right side walls, extending from the tip side over a predetermined range, and a box-shaped slide body with an open rear side is suspended on the underside of these slide rails, with its front side forming part of the front wall, and when the upper shell is raised to a predetermined position, the slide body slides along the slide rails and protrudes above the truck cabin, forming the bunk section of the camping shell, then it becomes possible to easily change the shape of the shell between a compact state without a bunk section when not in use for camping and a state with a large living space with a bunk section when in use for camping. [Effects of the Invention]

[0017] According to the present invention, the peripheral wall portion, which is composed of panel members, is divided into an upper and lower shell, and the upper shell covering the lower shell is made slidable up and down, resulting in a box-like structure. In addition to being easy to assemble and disassemble, the simple structure allows for low cost while easily changing the height of the shell. This makes it possible to lower the shell height during driving to ensure driving stability and to increase the shell height during camping to easily ensure the comfort of the living space. [Brief explanation of the drawing]

[0018] [Figure 1](A) is a side view of a traveling state of a camper equipped with a camping shell according to an embodiment of the present invention, (B) is a side view of a state where the camping shell of (A) is expanded upward when traveling is stopped, and (C) is a rear view of (B). [Figure 2] (A) is a partially cutaway front view of the panel member constituting the peripheral wall of the camping shell of Figure 1, with the interior visible, (B) is an exploded view of the panel member of (A), and (C) is an enlarged partial view of a cross section taken along line A-A of (A). [Figure 3] (A) is a side view of a state where a lift bar is mounted on the camping shell of Figure 1(A), and (B) is an enlarged exploded view of the lift bar of (A). [Figure 4] (A) is a side view of a state where the lift bar is operated from the state of Figure 3(A) to expand the shell upward, and (B) is a rear view of (A). [Figure 5] A side view showing an example of the usage state of the camper of Figure 4(A). [Figure 6] An enlarged partial vertical cross-sectional view for explaining the structure for protruding the front portion of the camping shell of Figure 5 above the driver's seat. [Figure 7] (A) is a side view showing a state where the mounting position of the lift bar is changed to unload the camping shell from the cargo bed from the state of Figure 3(A), (B) is a side view of a state where the lift bar is extended from the state of (A) to slightly lift the camping shell from the cargo bed, (C) is a side view showing a state where the camping shell is moved to the rear of the cargo bed from the state of (B), and (D) is a side view showing a state where the arm of the lift bar is retracted and installed after the camping shell is moved from the state of (C). [Figure 8] (A) is a rear view showing a modified example in which the lift bar of Figure 3(B) is provided on the frame of the camping shell, (B) is an exploded view of (A), and (C) is a rear view showing a modified example of the lift bar of (A). [Modes for Carrying Out the Invention]

[0019] Hereinafter, modes for carrying out the present invention will be described with reference to the drawings.

[0020] Figure 1 shows a camper van 1A equipped with a camping shell 2A, which is an embodiment of the present invention. Figure (A) is a side view when the camping shell 2A is not in use, Figure (B) is a side view when the camping shell 2A is in use for camping, and Figure (C) is a rear view of Figure (B).

[0021] The camping shell 2A of this embodiment has a shape and size that allows it to be mounted on the cargo bed of a relatively small truck 300, such as a light truck, and is characterized by its ease of loading and unloading from the cargo bed. Since it is treated as cargo when mounted and used without being fixed to the cargo bed with screws or bolts, the camper van 1A equipped with this camping shell 2A is not treated as a modified vehicle.

[0022] Such a camping shell 2A is constructed by a frame (framework) in which multiple rectangular prism-shaped metal pipes 220a, 220b, etc. are connected in a rectangular parallelepiped shape by joints, etc., and the front wall, rear wall, right wall, left wall, roof, and floor, which are made up of multiple rectangular panel members 20a, 20b, 20c, etc. are assembled in a rectangular parallelepiped shape to form a living space for camping inside, and when mounted on the cargo bed of a truck 300, it constitutes the living area of ​​camper van 1A.

[0023] Furthermore, as shown in Figure 1(B), the aforementioned front wall, rear wall, right wall, and left wall are divided into upper and lower parts at approximately the midpoint in the vertical direction, forming the upper and lower peripheral walls that make up the outer perimeter of the living space. The upper part, together with the roof, constitutes the upper shell 21, and the lower part, together with the floor, constitutes the lower shell 22.

[0024] Furthermore, the panel member 20a, which constitutes part of the upper shell 21 and lower shell 22, is formed by attaching rectangular plastic corrugated cardboard sheets 200, 200, which are slightly larger in length and width than a frame 250 made of square timbers assembled into a rectangular shape, to both the front and back surfaces, as shown in Figures 2(A) and (B). As shown in Figure (C), the panel member 20a is characterized in that connecting grooves 270, which have a width and depth approximately the same as the thickness of the frame, are continuously formed on the top, bottom, left, and right end faces of the panel member 20a.

[0025] Thus, by making the panel members 20a that constitute the peripheral walls of the camping shell 2A a three-layer structure consisting of two sheets of plastic corrugated cardboard 200, 200 containing a large amount of air, and an internal space formed on the inner circumference side of the frame 250, it is possible to construct a camping shell that is strong relative to its wall thickness, has a low specific gravity, and yet possesses extremely excellent thermal insulation and soundproofing performance.

[0026] Furthermore, on the panel member fixing surface side of the metal pipes 220a and 220b that constitute the frame shown by the dashed line in Figure 2(C), protrusions 80b with a width approximately equal to the groove 270 are provided along the longitudinal direction, making it easy to connect and separate the panel members 20a. In addition, although not shown in the illustration, for connecting the panel members together, a rectangular prism-shaped connecting member with a cross-section having a width equal to two of the aforementioned protrusions 80b can be interposed and fixed in the grooves of both panel members. As for the material of this connecting member, including the protrusions 80b, unpainted wood is preferable because it absorbs rainwater and expands, increasing its adhesion to the inner surface of the groove 270 and thus enhancing waterproofing.

[0027] Furthermore, screw holes 251 for screw fixing are drilled at predetermined positions in the frame 250, and nuts 255 are provided in the inner openings thereof. In addition, panel members 20b that function as windows using two transparent plastic corrugated cards, and panel members 20e (see Figure 6) that constitute a roof with a weather-resistant layer on the upper surface, have the same structure as the aforementioned panel member 20a and can perform the same functions.

[0028] Furthermore, in the camping shell 1A of the present invention, the upper shell 21 is slightly larger in size in the front-rear and left-right directions than the lower shell 22 (by about the thickness of two panel members 20a), and its inner circumferential surface is close to or in close contact with the outer circumferential surface of the lower shell 22, and it is capable of sliding vertically while covering a predetermined range downward from the upper end of the lower shell 22, and together with the lower shell 22, the structure as a whole is a box-like structure.

[0029] As a result, as shown in Figure 1(A), the living space can be easily expanded or contracted vertically between the lowest position of the upper shell 21 and the highest position shown in Figures 1(B) and (C). Therefore, when moving the camper van 1A, the camping shell 2A can be lowered to ensure driving stability, and when the vehicle is stationary and used as a camper, the camping shell 2A can be raised to secure a spacious and comfortable living space in the vertical direction. This is the most distinctive feature of the present invention.

[0030] Furthermore, in this camping shell 2A, the right and left walls of the upper shell 21, when the upper shell 21 is in its lowest position, have their lower ends resting on or close to the upper ends of the left and right side panels 211, 212 of the truck 300 on which it is mounted. The parts of the panels that do not have upright walls, together with the left and right side panels 211, 212, form a box-like structure, with the left and right side panels 211, 212 forming the left and right side parts of the main body, the parts of the lower shell 22 that protrude from the upper ends of the side panels 211, 212 forming the raised part of the inner box, and the upper shell 21 forming the lid.

[0031] This makes it easier to secure ample width on the upper side of the living space while preventing the camping shell 2A mounted on the truck bed of the truck 300 from significantly exceeding the width of the truck 300. Furthermore, at its lowest point, the upper shell 21 is supported or fixed to the upper ends of the side panels 211, 212, and is almost flush with the surface of the side panels 211, 212, so that the truck bed of the truck 300 presents a box-like, integrated appearance, resulting in an aesthetically pleasing vehicle when not in use for camping.

[0032] In this embodiment, as shown in Figure 1(C), by raising the upper shell 21 to its highest point, the door 20d located in the center of the rear wall of the lower shell 22 is fully exposed, allowing access to the living space of the camping shell 2A. Furthermore, by lowering the lower shell 21 to its lowest point, the door 20d can be hidden, making it impossible to open or close. Additionally, if the front-to-back width of the lower shell 22 fits within the front-to-back width of the truck bed and the truck can be loaded onto the truck bed with the rear tailgate raised, the lower end surface of the rear wall of the upper shell 21 can be placed on the top surface of the rear tailgate.

[0033] Figures 3 and 4 show an example of a method for moving the upper shell 21 of the camping shell 2A in this embodiment up and down. As mentioned above, the upper shell 21 of the camping shell 2A is relatively light overall because it is composed of lightweight panel members and a frame made of hollow metal pipes, so it can be easily moved up and down manually by about two people. However, in order to make the work easy even when done by one person, we will explain the case in which four electric lift bars 50 are used.

[0034] As shown in Figure 3(B), the lift bar 50 has a main body 51 made of a metal pipe, with a motor 51a and a reduction gear (not shown) at its base end. An arm 52, which is a rod-shaped member made of a metal pipe thinner than the main body 51, is inserted through an opening at the upper end of the arm 52, and a bolt 53, which is fixed at the lower end to the output shaft of the motor 51b, is screwed into the nut 52b. By operating a remote control 54 or the like, the motor 51a is driven and the bolt 53 rotates in forward and reverse directions, causing the arm 52 to telescopically extend and retract from the upper end of the main body 51.

[0035] The procedure for this operation is as follows: As shown in Figure 3(A), the lower end legs 51b of the lift bar 50 are placed on the ground, and the upper end fixing brackets 52a are secured to the lower four corners of the upper shell 21 with screws or the like. Next, as shown in Figure 4(A), the four lift bars 50 are operated simultaneously using a remote control 54 (not shown) or the like to raise the upper shell 21 while extending the four arms 52, and then stopped at the highest position.

[0036] Then, the lift-up operation is completed by fixing the upper shell 21 to the lower shell 22 with screws, pins, etc. (not shown). At this stage, it is ready for use as a camper, and the door 20d can be opened and closed as shown in Figure 5. Furthermore, if a step 61 is attached to the opening of the door 20a as shown in Figure 5, it becomes easier to enter and exit the living space of the camper shell 2A. In addition, when the upper shell 21 is raised in this state, the living space can be further expanded by projecting the box-shaped bunk section 215, in which the front panel 20j forms part of the front wall, forward.

[0037] As shown in Figure 6, the method for attaching the bank section 215 to the upper shell 21 involves interposing a rectangular prism-shaped slide rail 220f, which has a slide groove 229 on its lower surface, between the left and right ends of the panel members 20e that make up the roof of the upper shell 21 and the metal pipes 220b, 220b that are installed in the front-rear direction at the upper ends of the left and right side walls to form a frame. By suspending a box-shaped (rectangular parallelepiped) member with an open rear side using a suspension fitting 77 with wheels at its upper end, so that it can slide back and forth, the bank section 215 of the camping shell 2A can be provided.

[0038] In other words, with the upper shell 21 raised to a predetermined position, the sliding bank section 215 protrudes along the sliding rail 220f above the cabin of the truck 300, forming the bank section 215 of the camping shell 2A. This makes it possible to easily change the shape of the shell between a compact state during transport with the bank section 215 retracted and a state with a spacious living area during camping with the bank section 215 protruding.

[0039] Figure 7 shows the procedure for lowering the camping shell 2A from the truck bed 300 using the four lift bars 50 described above. Referring to Figure (A), first, with the arms 52 of the four lift bars 50 extended to the height of the truck bed, the legs 51b are placed on the ground and the fixing brackets 52a at the ends are fixed to the upper shell 21. Then, the upper shell 21 is fixed to the lower shell 22 with screws or the like, and then, as shown in Figure (B), the lift bars 50 are operated to lift the camping shell 2A until it is slightly above the truck bed.

[0040] Next, as shown in Figure 7(C), the truck 300 is moved forward, or the camping shell 2A is moved backward using the wheels 55 of the legs 51b of the lift bar 50 to a position where it is off the truck bed. Then, as shown in Figure (D), the four lift bars 50 are activated to lower the camping shell 2A to near the ground or onto the ground to complete the work. The camping shell 2A can also be loaded onto the truck bed of the truck 300 by performing the reverse operation.

[0041] Thus, since even a single worker can quickly and easily load and unload the Camping Shell 2A onto the Truck 300, the Truck 300 is not limited to use solely for camping. This eliminates the need to prepare other vehicles for regular business or daily use, resulting in the advantage of keeping maintenance and storage costs low.

[0042] Figures 8(A) and 8(B) show a modified example in which the function of the lift bar 50 described above is replaced by metal pipes 220c provided on the metal pipes 220a at the four corners of the lower shell 22. In this example, as shown in Figure (A), the metal pipe 220c itself performs the same operation as the lift bar 50 described above, electrically extending, retracting, and stopping the arm 222 from its upper end.

[0043] Specifically, a drive mechanism 224, consisting of a drive box 224a containing a motor 224b and a gear 224c, is installed inside the lower end of the metal pipe 220c, with its drive shaft connected to the lower end of a bolt 223. The bolt 223 is screwed into a nut 222a on the lower end of the arm 22 from its tip, and the arm 222 is moved up and down while the motor 224b is driven by the operation of a remote control 90 or the like.

[0044] As described above, by adopting a method in which the lift bar 50 is integrated with the metal pipes at the four corners of the lower shell 22, the operation procedure for vertical movement of the upper shell 21 becomes even simpler. Another modification is to remove the motor 224b from the aforementioned drive means 224 and install a drive box 224d containing only gears inside the metal pipe 220c. A drive shaft such as an electric screwdriver 70 is then inserted through a through hole from the outside to operate the gears and move the arm 222 up and down. This makes it possible to change the height of the camping shell 2A at an even lower cost and with greater ease.

[0045] As described above, according to the present invention, which provides a box-like structure in which the upper shell covering the outer circumference of the lower shell is made vertically slidable, the camping shell can be easily assembled and disassembled, and its height can be easily changed at low cost. [Explanation of symbols]

[0046] 1A Camper van, 2A Camping shell, 20a, 20b, 20c Panel members, 20j Front panel, 21 Upper shell, 22 Lower shell, 50 Lift bar, 51a, 224b Motor, 52, 222 Arm, 80 Protrusion, 200 Plastic corrugated board, 211, 212 Side panels, 215 Bank section, 220a, 220b, 220c Pipe members, 220f Slide rail, 224 Drive mechanism, 250 Frame, 270 Groove, 300 Track

Claims

1. A camping shell is formed by connecting panel members that make up the front wall, rear wall, right side wall, left side wall, roof, and floor in a roughly rectangular parallelepiped shape to form a living space inside, and is mounted on the bed of a truck to form the living area of ​​a camper van, wherein the front wall, rear wall, right side wall, and left side wall are divided into an upper part and a lower part at an intermediate position in the vertical direction, forming an upper perimeter wall and a lower perimeter wall, respectively, the upper part together with the roof constitutes the upper shell, and the lower part together with the floor constitutes the lower shell, wherein the upper shell is slightly larger in the front-rear and left-right directions than the lower shell, and its inner perimeter surface is close to or in close contact with the outer perimeter surface of the lower shell, covering a predetermined range from the upper end of the lower shell, and is capable of sliding vertically, and together with the lower shell it exhibits an overall box-like structure, and the height of the shell can be changed between a low state with the upper shell lowered to a predetermined position when not in use for camping and a high state with the upper shell raised to a predetermined position when in use for camping.

2. The camping shell according to claim 1, characterized in that the right and left walls of the upper shell are positioned such that when the upper shell is in its lowest position, its lower ends are close to or resting on the upper ends of the left and right side panels of the truck on which it is mounted, the portion of the panel excluding the wall side where the panel is not upright together with the left and right side panels form a box-like shape, the left and right side panels constitute the left and right side portions of the main body, the portion of the lower shell protruding from the upper ends of the left and right side panels constitutes the rising portion of the inner box, and the upper shell constitutes the lid portion.

3. The panel members constituting the right side wall and the left side wall are fixed at their upper, lower, left, and right end faces within the inner space of a frame formed by connecting rectangular prism-shaped metal pipes in a rectangular shape with joints, and each forms a part of the outer surface of the upper shell and the lower shell, respectively, and are made by attaching rectangular plastic corrugated sheets, larger in length and width than the frame, to both the front and back surfaces of a frame made of rectangular timbers, and connecting grooves having the same width as the thickness of the frame are formed on the upper, lower, left, and right end faces, characterized in that the camping shell according to claim 1 or 2.

4. The camping shell according to claim 3, characterized in that the metal pipes constituting the pillars at the four corners of the lower shell have rod-shaped members with a smaller outer diameter inside, and the rod-shaped members function as lift bars that extend, retract, and stop in a telescopic manner from the upper end of the metal pipes by an electric drive means, and the upper shell is moved up and down by operating the electric drive means with the tip of the rod-shaped member fixed to predetermined positions at the four corners on the inside of the upper shell.

5. The camping shell according to claim 3, characterized in that, at both left and right ends of the panel member that constitutes the roof of the upper shell, rectangular prism-shaped slide rails are interposed between the panel member and metal pipes that are installed in the front-rear direction at the upper ends of the left and right side walls, extending from the tip side over a predetermined range; a box-shaped slide body with an open rear side is suspended on the lower side of the slide rail, with its front side constituting part of the front wall; and when the upper shell is raised to a predetermined position, the slide body slides along the slide rail and protrudes above the cabin of the truck, thereby forming the bank portion of the camping shell.

Images