Cabin seal structure and camping car

Abstract

To enhance the adiabaticity of a cabin.SOLUTION: A seal structure 30 of a cabin 1 comprises a first shell 10 and a second shell 20 piled up on the first shell 10 to relatively move upwards, or an expansion direction to the first shell 10. The seal structure 30 comprises a first seal member 31 provided in a gap C formed inside the second shell 20 with the first shell 10 to be fixed on the first shell 10 and a second seal member 32 provided oppositely to the first seal member 31 upwards, or the expansion direction to be fixed on the second shell 20. The second seal member 32 separates from the first seal member 31 in a state where the cabin 1 is not expanded, that is, a basic state, while in a state where the cabin 1 is expanded, it abuts on the first seal member 31.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a cabin seal structure and a camper. [Background technology]

[0002] Patent Document 1 discloses a vehicle luggage compartment that is expandable and includes a main luggage compartment and an auxiliary luggage compartment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7132577 Summary of the Invention [Problem to be solved by the invention]

[0004] Expandable cabins are used, for example, in campervans. In this case, not expanding the cabin while driving reduces wind resistance and lowers the center of gravity of the vehicle, which contributes to driving stability. On the other hand, expanding the cabin during a camping stay allows for a larger interior space.

[0005] In an expandable cabin, a gap is necessary between the first shell and the second shell that is stacked on the first shell and moves relative to the first shell in the expansion direction. However, if the inside and outside of the cabin remain in communication through the gap, there is a risk that the thermal insulation of the cabin will be reduced or impaired.

[0006] The present invention has been made in consideration of such problems, and has an object to improve the thermal insulation of the cabin. [Means for solving the problem]

[0007] The present invention relates to a sealing structure for a cabin comprising a first shell and a second shell stacked on the first shell and moving relative to the first shell in the expansion direction, comprising a first sealing member fixed to the first shell and provided inside the second shell in a gap formed between the first shell and the second shell, and a second sealing member fixed to the second shell and provided opposite the first sealing member in the expansion direction, wherein the second sealing member is spaced apart from the first sealing member when the cabin is not expanded, and abuts against the first sealing member when the cabin is expanded.

[0008] According to this invention, since the second seal member abuts against the first seal member to close the gap when the cabin is expanded, the thermal insulation of the cabin during expansion can be improved. Also, even when the cabin is not expanded, the thermal insulation of the cabin can be improved compared to a case where the first seal member and the second seal member are not present, for example, because the gap is narrowed by the first seal member and the second seal member.

[0009] Furthermore, the present invention is characterized in that the first seal member is provided apart from the second shell, and the second seal member is provided apart from the first shell.

[0010] According to this invention, the first seal member and the second seal member do not slide together when the cabin is expanded or contracted. This improves the thermal insulation of the cabin when expanded, while preventing the second shell from moving smoothly due to the first seal member or the second seal member, and thus prevents the operation of the second shell from being hindered.

[0011] In the present invention, at least one of the first seal member and the second seal member has a hollow structure.

[0012] According to this invention, the hollow structure makes the seal easier to deform, thereby improving the adhesion between the first seal member and the second seal member, thereby improving the thermal insulation of the cabin.

[0013] Furthermore, the present invention is characterized in that one of the first seal member and the second seal member has a hollow structure, and the other has a cantilever leaf spring structure.

[0014] According to this invention, one of the seal members is easily deformed due to its hollow structure. Also, the other seal member has a cantilevered leaf spring structure, which generates a pressing force when it comes into contact with the one seal member, thereby improving adhesion, while the plate shape of the other seal member makes it easy to deform along the one seal member. As a result, the adhesion between the first seal member and the second seal member is increased, and the insulation of the cabin can be more suitably improved.

[0015] The present invention also relates to a camper van having a cabin having the above-mentioned cabin seal structure mounted thereon.

[0016] According to this invention, by not expanding the cabin while traveling, it is possible to reduce wind resistance and lower the center of gravity of the vehicle, and by expanding the cabin while camping, it is possible to enjoy the advantages of being able to use a large interior space. Furthermore, while enjoying these advantages, by increasing the thermal insulation of the cabin at least when expanded, it is possible to increase the thermal insulation of the expanded cabin during a camping stay, which is enjoyed as a leisure activity but may be affected by unexpected weather and temperature changes. Effect of the Invention

[0017] According to these aspects, the thermal insulation of the cabin can be improved. [Brief description of the drawings]

[0018] [Figure 1] 1 is an external perspective view of a cabin according to an embodiment of the present invention. FIG. [Diagram 2] FIG. 2 is an external rear view of a cabin according to an embodiment of the present invention. [Diagram 3] 1 is a vertical cross-sectional view of a main part of a cabin according to an embodiment of the present invention. FIG. [Figure 4]FIG. 4 is a diagram showing the arrangement of a first seal member and a second seal member in a basic state. [Diagram 5] 13 is a diagram showing the arrangement of the first seal member and the second seal member when expanded upward. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0020] 1 and 2 are external views of the cabin 1. Figs. 1 and 2 show the cabin 1 mounted on the camper van 100. Fig. 1 shows the external appearance of the cabin 1 as seen from the left rear of the camper van 100, and Fig. 2 shows it from the rear. Fig. 1 shows the basic state in which the cabin 1 is not expanded, and Fig. 2 shows the state in which the cabin 1 is expanded upward and laterally. The upper and lower sides (vertical direction) of the camper van 100 correspond to the upper and lower sides of the cabin 1, the sides (left and right direction) of the camper van 100 correspond to the sides of the cabin 1, and the front and rear of the camper van 100 correspond to the front and rear of the cabin 1.

[0021] The camper van 100 is configured with a small truck, indicated by a dashed line, as the base vehicle, and a cabin 1 mounted behind a cab 50 of the small truck. The cabin 1 is a wooden room structure, and is provided in the camper van 100 separately from the cab 50 in which the driver's seat is provided. Metallic members such as aluminum panels and steel frames are also used appropriately in the cabin 1 from the viewpoints of aesthetics, rigidity, and the like. The cabin 1 has a wall structure with insulating material sandwiched therebetween, which enhances the insulating properties of the interior space of the cabin 1. The interior space of the cabin 1 is used as a living space for the user, such as when living at a campsite.

[0022] The cabin 1 has an expandable structure and can be expanded upward. Therefore, by not expanding the cabin 1 while the camper van 100 is traveling, wind resistance can be reduced and the center of gravity of the vehicle can be lowered. Also, by expanding the cabin 1 during a camping stay, a large interior space can be utilized.

[0023] The cabin 1 has a first shell 10 and a second shell 20 as components of the expansion structure. The first shell 10 is a lower shell, and is provided on the body of the camper van 100. The first shell 10 has a box-like shape with an open top, and the second shell 20 is placed on top of the first shell 10. The second shell 20 is a ceiling shell, and has a box-like shape with an open bottom. The second shell 20 is placed over the first shell 10 from above, covering the first shell 10. Therefore, the second shell 20 is provided on the outside of the first shell 10.

[0024] 2, the lateral size of the first shell 10 is such that the upper portion 10b is slightly smaller than the lower portion 10a, and the second shell 20 is placed on the first shell 10 from above, covering the upper portion 10b. The sidewall of the upper portion 10b is provided closer to the inside of the cabin 1 than the sidewall of the lower portion 10a, depending on the thickness of the sidewall of the second shell 20.

[0025] The second shell 20 is mounted on the first shell 10 so as to be movable up and down via a rail (not shown). For example, a linear guide slide rail can be used for the rail. An actuator (not shown) that drives the second shell 20 is provided in the cabin 1, and when the actuator drives the second shell 20 upward from the base state, the second shell 20 moves upward. As a result, the cabin 1 is expanded upward, and the upward expansion is performed. A hydraulic cylinder, which is a hydraulic actuator, can be used for the actuator.

[0026] As shown in Fig. 2, the cabin 1 is further configured to be expandable laterally (to the right). Fig. 2 shows the cabin 1 expanded upward and laterally, but the cabin 1 can also be expanded laterally from the basic state. The state in which the cabin 1 is expanded upward includes the state in which the cabin 1 is expanded upward and laterally.

[0027] In the cabin 1, a gap C (see, for example, FIG. 3) is necessary between the first shell 10 and the second shell 20 that is stacked on the first shell 10 and moves upward, i.e., in the expansion direction, relative to the first shell 10. However, if the inside and outside of the cabin 1 remain in communication via the gap C, the thermal insulation properties of the cabin 1 may be reduced or impaired.

[0028] For this reason, in this embodiment, the cabin 1 is provided with a seal structure 30 which will be described next.

[0029] Fig. 3 is a vertical cross-sectional view of the main part of the cabin 1. Fig. 3 shows a vertical cross-sectional view of the left side part of the cabin 1 from the rear in a state in which the cabin 1 is expanded upward. Fig. 3 shows a seal structure 30 as a main part. Fig. 3 also shows a brush 40 together with the seal structure 30.

[0030] The seal structure 30 is provided around the entire periphery of the cabin 1, and includes a first seal member 31 and a second seal member 32. The first seal member 31 is made of rubber and has a rectangular cross-sectional shape. For example, an NBR (nitrile rubber) sponge or an EPDM (ethyl propylene rubber) is used for the first seal member 31. The NBR sponge is made by foaming NBR. The first seal member 31 is fixed to the first shell 10. The first seal member 31 is fixed to the upper part of the first shell 10.

[0031] The first seal member 31 is provided in relation to the gap C. The gap C is formed between the first shell 10 and the inside of the second shell 20, and the gap C enables the second shell 20 to move vertically relative to the first shell 10. The first seal member 31 is disposed in the gap C and separated from the second shell 20. Therefore, even if the second shell 20 moves vertically, the first seal member 31 does not slide on the wall surface of the second shell 20. The first seal member 31 has a hollow structure with holes 31a, which makes it easy to deform. The hollow structure may be composed of two or more hollow portions. The first seal member 31 may be a solid structure.

[0032] The second seal member 32 is made of rubber and is fixed to the second shell 20. Like the first seal member 31, the second seal member 32 is also made of NBR sponge or EPDM. The second seal member 32 is provided in the gap C. The second seal member 32 is provided facing the first seal member 31 upward, that is, toward the expansion direction. The second seal member 32 is interposed in the gap C and provided away from the first shell 10. Therefore, even if the second shell 20 moves in the vertical direction, the second seal member 32 does not slide on the wall surface of the first shell 10.

[0033] The second seal member 32 has a fixed portion 32a and an abutment portion 32b. The fixed portion 32a is fixed to the second shell 20. The abutment portion 32b has a cantilevered leaf spring structure extending from the fixed portion 32a in a cantilevered manner, and the second seal member 32 abuts against the first seal member 31 at the abutment portion 32b. The abutment portion 32b extends obliquely upward from the portion of the fixed portion 32a on the first shell 10 side toward the second shell 20 side, and the upper surface of the abutment portion 32b abuts against the first seal member 31.

[0034] The first seal member 31 and the second seal member 32 abut against each other while deforming when the cabin 1 is expanded upward. At this time, the second seal member 32 is pressed against the first seal member 31 by the second shell 20, while a pressing force is generated by the cantilevered leaf spring structure. The first seal member 31 is easily deformed due to its hollow structure, and the plate-shaped second seal member 32 is easily deformed along the first seal member 31. As a result, the first seal member 31 and the second seal member 32 are easily brought into close contact with each other, and therefore the close contact between the first seal member 31 and the second seal member 32 is increased. The first seal member 31 and the second seal member 32 are arranged as follows in the basic state and when expanded upward. The brush 40 will be described later.

[0035] FIG. 4 is a diagram showing the arrangement of the first seal member 31 and the second seal member 32 in the basic state. FIG. 5 is a diagram showing the arrangement of the first seal member 31 and the second seal member 32 during upward expansion. In the basic state shown in FIG. 4, the second shell 20 is positioned lower than in the upward expansion shown in FIG. 5. Therefore, the second seal member 32 is also positioned lower than in the upward expansion shown in FIG. 5. As a result, the second seal member 32 is positioned apart from the first seal member 31 in the basic state. On the other hand, the second seal member 32 abuts against the first seal member 31 as described above during the upward expansion shown in FIG. 5. Therefore, in this embodiment, the gap C is blocked by the seal structure 30 during upward expansion, thereby improving the thermal insulation of the cabin 1 during the upward expansion in which the cabin 1 is expected to be used.

[0036] In this case, there is an option to constantly increase the thermal insulation of the cabin 1 (that is, even during downward contraction or expansion / contraction) by, for example, further abutting the first seal member 31 against the second shell 20 or abutting the second seal member 32 against the first shell 10. However, doing so may cause a concern that the operation of the second shell 20 may be hindered, such as the second shell 20 not moving smoothly.

[0037] For this reason, in this embodiment, the first seal member 31 is provided away from the second shell 20, and the second seal member 32 is provided away from the first shell 10. This prevents the first seal member 31 and the second seal member 32 from interfering with the operation of the second shell 20.

[0038] In this case, in the basic state, the inside and outside of the cabin 1 communicate with each other via the gap C. However, the basic state is a state that assumes the campervan 100 is traveling, and in light of the purpose of using the cabin 1 by expanding it during a camping stay, there is less need to improve the insulation in the basic state compared to when it is expanded upward. Also, even in the basic state, the gap at the location where the first sealing member 31 and the second sealing member 32 are arranged is narrower than the gap C. Therefore, even in the basic state, the insulation of the cabin 1 is improved compared to when the first sealing member 31 and the second sealing member 32 are not present.

[0039] As also shown in FIG. 3, the cabin 1 is further provided with a brush 40. The brush 40 is provided on the first shell 10. The brush 40 is fixed to the first shell 10 via a mounting member. The brush 40 is disposed above the seal structure 30 so as to cover the gap between the first seal member 31 and the second shell 20 from above. The brush 40 serves to prevent valuables and objects such as keys and cards from falling into the gap. The brush 40 also serves to reduce the intrusion of drafts and insects from between the first shell 10 and the second shell 20 when the second shell 20 is lowered.

[0040] The configuration, operation, and effects of the embodiment of the present invention will be described below.

[0041] The seal structure 30 of the cabin 1 includes a first shell 10 and a second shell 20 that is overlapped with the first shell 10 and moves relatively upward, which is the expansion direction, with respect to the first shell 10. The seal structure 30 includes a first seal member 31 that is provided in a gap C formed between the first shell 10 and the second shell 20 inside the second shell 20 and is fixed to the first shell 10, and a second seal member 32 that is provided facing the first seal member 31 toward the upward expansion direction and is fixed to the second shell 20. The second seal member 32 is separated from the first seal member 31 when the cabin 1 is not expanded, i.e., in a basic state, and abuts against the first seal member 31 when the cabin 1 is expanded.

[0042] According to this configuration, when the cabin 1 is expanded upward, the second seal member 32 abuts against the first seal member 31 to close the gap C, thereby improving the thermal insulation of the cabin 1 during upward expansion. Also, even in the basic state, for example, the gap C is narrowed by the first seal member 31 and the second seal member 32, so that the thermal insulation of the cabin 1 can be improved compared to the case where the first seal member 31 and the second seal member 32 are not present.

[0043] The first seal member 31 is provided apart from the second shell 20 , and the second seal member 32 is provided apart from the first shell 10 .

[0044] According to this configuration, the first seal member 31 and the second seal member 32 do not slide together when the cabin 1 is expanded or contracted in the vertical direction. Therefore, while improving the thermal insulation of the cabin 1 when expanded, it is possible to prevent the first seal member 31 and the second seal member 32 from preventing the second shell 20 from moving smoothly and other problems that may impede the operation of the second shell 20.

[0045] In this embodiment, the first seal member 31 has a hollow structure (hollow structure formed by the hole 31a).

[0046] According to this configuration, the hollow structure of the first sealing member 31 makes it easier to deform, thereby increasing the adhesion between the first sealing member 31 and the second sealing member 32, thereby improving the insulation properties of the cabin 1.

[0047] In this embodiment, the first seal member 31 has a hollow structure, and the second seal member 32 has a cantilevered leaf spring structure (a cantilevered leaf spring structure by the abutment portion 32b).

[0048] According to this configuration, the first seal member 31 is easily deformed due to its hollow structure. In addition, the second seal member 32 has a cantilevered leaf spring structure, which generates a pressing force when it comes into contact with the first seal member 31, thereby improving adhesion, while the plate shape makes it easy to deform along the first seal member 31. As a result, the adhesion between the first seal member 31 and the second seal member 32 is increased, and the thermal insulation of the cabin 1 can be more suitably improved.

[0049] In the camper 100 on which the cabin 1 having the above-mentioned seal structure 30 for the cabin 1 is mounted, the cabin 1 is not expanded while traveling, thereby reducing wind resistance and lowering the center of gravity of the vehicle. In addition, the gaps at the locations where the first seal member 31 and the second seal member 32 are arranged are narrower than the gap C, so that the thermal insulation of the cabin 1 can be improved even while traveling (in the basic state) compared to when the first seal member 31 and the second seal member 32 are not present. Furthermore, by expanding the cabin 1 during a camping stay, it is possible to enjoy the advantage of being able to use a large interior space. In addition, while enjoying such advantages, by increasing the thermal insulation of the cabin 1 at least when expanded, it is possible to increase the thermal insulation of the expanded cabin 1 during a camping stay, which is enjoyed as a leisure activity but may be affected by unexpected weather and temperature changes.

[0050] Although the embodiments of the present invention have been described above, the above-mentioned embodiments merely show some of the application examples of the present invention, and it is not intended that the technical scope of the present invention be limited to the specific configurations of the above-mentioned embodiments.

[0051] For example, the cabin 1 may be a cabin configured to be expandable laterally by a gap similar to the gap C. Also, the hollow structure may be provided in the second seal member 32, or may be provided in the first seal member 31 and the second seal member 32. Also, the first seal member 31 may have a cantilever leaf spring structure, and the second seal member 32 may have a hollow structure.

[0052] The cabin 1 can also be used in vehicles other than the camper van 100, such as a kitchen car. The cabin 1 can also be used as a container for storing luggage, cargo, etc. The cabin 1 can also be mounted on a towed vehicle and can be used as a mobile home. [Explanation of symbols]

[0053] REFERENCE SIGNS LIST 1 cabin, 10 first shell, 20 second shell, 30 seal structure, 31 first seal member, 31a hole, 32 second seal member, 32b contact portion, 100 camper, C gap

Claims

1. A seal structure for a cabin including a first shell and a second shell that is overlapped with the first shell and moves relative to the first shell in an expansion direction, a first seal member provided inside the second shell for a gap formed between the second shell and the first shell and fixed to the first shell; a second seal member provided opposite the first seal member in the expansion direction and fixed to the second shell, the second seal member is spaced from the first seal member when the cabin is not expanded, and is in contact with the first seal member when the cabin is expanded; the first seal member is provided apart from the second shell, The second seal member is provided apart from the first shell. A cabin seal structure characterized by:

2. The cabin seal structure according to claim 1, At least one of the first seal member and the second seal member has a hollow structure. A cabin seal structure characterized by:

3. The cabin seal structure according to claim 2, one of the first seal member and the second seal member has the hollow structure, and the other has a cantilever leaf spring structure; A cabin seal structure characterized by:

4. A cabin having the seal structure for a cabin according to any one of claims 1 to 3 is mounted. A camper van characterized by:

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