Connection Structure of Mobile Units

Abstract

Enable easy connection and disconnection between multiple mobile units, maintain a state where multiple mobile units can move at any time and arbitrarily, and further ensure rainproofing at the connection points between multiple mobile units. 【Solution means】Connecting means for connecting mobile units to each other and forming a passage space 20 surrounding the communication ports 14a and 113a facing each other includes a waterproof sheet portion 30 covering the passage space, and a floor portion 40 holding the lower ends of both side edges of the waterproof sheet portion. The floor portion 40 includes a support portion 41 spanned between the mobile units, a floor surface portion 42 detachably fixed to the upper surface of the support portion 41, and a first fixing member 44 for fixing the floor surface portion to the support portion 41. The first fixing member fixes the floor surface portion to the support portion by being provided from top to bottom from the floor surface portion toward the support portion.

Description

Technical Field

[0001] The present invention relates to a connection structure of mobile units.

Background Art

[0002] Conventionally, mobile units that can be easily relocated or installed are widely known as container houses, trailer houses, camping cars, etc. In addition, mobile units are increasingly in demand in recent years, such as being permanently installed as houses, stores, or offices, being used as temporary accommodation facilities, or being used as temporary houses in the event of natural disasters. On the other hand, since such mobile units are towed and transported by automobiles, they need to be sized to fit within legal regulations (such as the Road Transportation Vehicle Law), but there is a problem that the internal space is narrow accordingly. Therefore, for example, as disclosed in Patent Document 1, there are cases where a plurality of mobile units are connected to enable passage between them for the purpose of expanding the internal space.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, depending on the usage form, mobile units may not fall under the category of buildings under the Building Standards Law. In such cases, without using special tools, etc., a plurality of mobile units should be easily connectable and easily divisible (separable), and a state where a plurality of mobile units can move at any time and arbitrarily should be maintained. Furthermore, when connecting a plurality of mobile units, it is necessary to prevent the intrusion of rainwater, etc., so ensuring the rainproofing at the connection points is required.

[0005] The present invention has been made in view of the above circumstances, and its object is to enable easy connection and easy disassembly between a plurality of mobile units, and to maintain a state in which the plurality of mobile units can move at any time and arbitrarily. Further, it is to ensure the weathertightness at the connection portion between the plurality of mobile units.

Means for Solving the Problems

[0006] The invention according to claim 1 is, for example, as shown in FIGS. 1 to 12, in which a plurality of mobile units 1, 100 are arranged adjacent to each other with their communication ports 14a, 113a facing each other, a connecting and surrounding means is provided across between the adjacent mobile units 1, 100 to connect the mobile units 1, 100 and to form a passage space 20 surrounding between the opposing communication ports 14a, 113a, The connecting and surrounding means includes a waterproof sheet portion 30 that at least covers the upper edge portion 20a, one side edge portion 20b, and the other side edge portion 20c of the passage space 20, a floor portion 40 that is bridged between the adjacent mobile units 1, 100 without being fixed to the adjacent mobile units 1, 100, is disposed at the lower edge portion of the passage space 20, and holds the lower end portions of both side edges of the waterproof sheet portion 30, The floor portion 40 includes a support portion 41 that is bridged and disposed between the adjacent mobile units 1, 100, a floor surface portion 42 that is detachably fixed to the upper surface of the support portion 41 to form the floor surface of the passage space 20, a first fixing member 44 for fixing the floor surface portion 42 to the support portion 41, The lower end portion of the waterproof sheet portion 30 is sandwiched between the support portion 41 and the floor surface portion 42. The first fixing member 44 is characterized in that the floor surface portion 42 is fixed to the support portion 41 by being provided from the floor surface portion 42 toward the support portion 41 from top to bottom.

[0007] According to the invention described in claim 1, the connecting and surrounding means is provided between adjacent mobile units 1 and 100 to connect the mobile units 1 and 100 to each other, and surrounds the opposing communication ports 14a and 113a to form the passage space 20. Therefore, adjacent mobile units 1 and 100 can be easily connected and easily separated in a state where they can freely go back and forth between the adjacent mobile units 1 and 100, and a plurality of mobile units 1 and 100 can be maintained in a state where they can move at any time and arbitrarily. Furthermore, since the connecting and surrounding means has the waterproof sheet portion 30 that at least covers the upper edge portion 20a, the one side edge portion 20b, and the other side edge portion 20c of the passage space 20, the waterproof sheet portion 30 can prevent rainwater from entering the passage space 20 at a position above the floor portion 40. Also, the connecting and surrounding means is bridged between the adjacent mobile units 1 and 100 without being fixed to the adjacent mobile units 1 and 100, is disposed at the lower edge portion of the passage space 20, and has the floor portion 40 that holds the lower end portions of both side edges of the waterproof sheet portion 30. Therefore, by this floor portion 40, the adjacent mobile units 1 and 100 can be easily connected along the lower edge portion 20d of the passage space 20 and can be used for walking. While improving the waterproof property by surrounding the passage space 20 without gaps by the waterproof sheet portion 30 and the floor portion 40, it is possible to ensure the rainproofing at the connection portion between the adjacent mobile units 1 and 100. Moreover, the floor portion 40 includes a support portion 41 disposed across adjacent mobile units 1, 100, a floor surface portion 42 that is detachably fixed to the upper surface of the support portion 41 to form the floor surface of the passage space 20, and a first fixing member 44 for fixing the floor surface portion 42 to the support portion 41. Since the first fixing member 44 is provided from top to bottom from the floor surface portion 42 toward the support portion 41 to fix the floor surface portion 42 to the support portion 41, work can be performed from above when fixing the floor surface portion 42 to the support portion 41. That is, since it is possible to perform the work of fixing the floor surface portion 42 to the support portion 41 within the passage space 20, it is easier to fix or release the fixing of the floor surface portion 42 to the support portion 41, for example, compared to the case where work is performed from below when fixing the floor surface portion 42 to the support portion 41. As a result, adjacent mobile units 1, 100 can be more easily connected and more easily divided in a state where they can freely move back and forth between the adjacent mobile units 1, 100, and a plurality of mobile units 1, 100 can be maintained in a state where they can move at any time and arbitrarily.

[0008] The invention according to claim 2 is, for example, as shown in FIGS. 7 to 12, in the connection structure of the mobile unit 1,100 according to claim 1, the floor surface portion 42 a base portion 420 placed on the support portion 41 and fixed to the support portion 41 by the first fixing member 44, a floor finishing portion 430 detachably fixed to the upper surface of the base portion 420 to form the floor surface of the passage space 20, and a second fixing member 440 for fixing the floor finishing portion 430 to the base portion 420, wherein the second fixing member 440 is provided from top to bottom from the floor finishing portion 430 toward the base portion 420 to fix the floor finishing portion 430 to the base portion 420.

[0009] According to the invention described in claim 2, the floor surface portion 42 has a base portion 420 that is placed on the support portion 41 and fixed to the support portion 41 by a first fixing member 44, a floor finishing portion 430 that is detachably fixed to the upper surface of the base portion 420 and constitutes the floor surface of the passage space 20, and a second fixing member 440 for fixing the floor finishing portion 430 to the base portion 420. The second fixing member 440 is provided from top to bottom from the floor finishing portion 430 toward the base portion 420 to fix the floor finishing portion 430 to the base portion 420, so that the work can be carried out from top to bottom when fixing the floor finishing portion 430 to the base portion 420. That is, since it is possible to perform the work of fixing the floor finishing portion 430 to the base portion 420 within the passage space 20, it is easier to fix or release the fixing of the floor finishing portion 430 to the base portion 420 compared to the case where the work is carried out from below when, for example, fixing the floor finishing portion 430 to the base portion 420. As a result, adjacent mobile units 1, 100 can be more easily connected and further easily divided in a state where they can freely move back and forth between the adjacent mobile units 1, 100, and a plurality of mobile units 1, 100 can be maintained in a state where they can move at any time and arbitrarily.

[0010] The invention described in claim 3 is, for example, as shown in FIGS. 7 to 12, in the connection structure of the mobile units 11, 100 described in claim 1, the support portion 41 has a bridging portion 400 that is bridged between adjacent mobile units 1, 100, and a support portion main body 410 that is placed on and attached to the bridging portion 400, and on the upper surface of which the floor surface portion 42 is fixed by the first fixing member 44. The support portion main body 410 is characterized in that the bridging portion 400 is slidable on the upper surface of the bridging portion 400 along the direction in which the bridging portion 400 is bridged between adjacent mobile units 1, 100.

[0011] According to the invention described in claim 3, the support portion 41 has a bridging portion 400 that is bridged between adjacent mobile units 1, 100, and a support portion main body 410 that is placed on and attached to the bridging portion 400, and on the upper surface of which the floor surface portion 42 is fixed by the first fixing member 44. The support portion main body 410 is slidable on the upper surface of the bridging portion 400 along the direction in which the bridging portion 400 is bridged between adjacent mobile units 1, 100. Therefore, the position of the support portion main body 410 can be adjusted according to the interval between adjacent mobile units 1, 100. As a result, the position of the floor surface portion 42 that constitutes the floor surface of the passage space 20 can be arranged at the intermediate portion between adjacent mobile units 1, 100, so that the ease of walking in the passage space 20 can be improved. Moreover, since the floor portion 40 including the floor surface portion 42 holds the waterproof sheet portion 30, it is possible to prevent a situation in which the waterproof sheet portion 30 is twisted to one side of either of the adjacent mobile units 1, 100, and it can contribute to ensuring the rainproofing at the connection portion between adjacent mobile units 1, 100.

[0012] The invention described in claim 4 is, for example, as shown in FIGS. 7 to 12, in the connection structure of the mobile units 1, 100 described in claim 1, A sheet-shaped sealing material 43 is sandwiched and provided between the support portion 41 and the floor surface portion 42. The sealing material 43 is characterized by being bridged between adjacent mobile units 1, 100.

[0013] According to the invention described in claim 4, a sheet-shaped sealing material 43 is sandwiched and provided between the support portion 41 and the floor surface portion 42, and the sealing material 43 is bridged between adjacent mobile units 1, 100. Therefore, the portion of the floor portion 40 located above the support portion 41 can be protected by the sealing material 43. As a result, it can contribute to ensuring the rainproofing at the portion of the connection portion between adjacent mobile units 1, 100 that is located above the support portion 41.

[0014] The invention according to claim 5 is, for example, as shown in FIG. 8, in the connection structure of the mobile units 1, 100 according to claim 4, on the upper surface of the sealing material 43, and a first heat insulating material 45 is filled in the gap between the floor surface portion 42 and the mobile units 1, 100 adjacent to the floor surface portion 42.

[0015] According to the invention of claim 5, since the first heat insulating material 45 is filled in the gap between the upper surface of the sealing material 43, the floor surface portion 42, and the mobile units 1, 100 adjacent to the floor surface portion 42, the heat insulation performance of the floor portion 40 in the passage space 20 can be improved. Further, since the first heat insulating material 45 is filled, the floor surface portion 42 is less likely to shift to either one of the adjacent mobile units 1, 100, so that the waterproof sheet portion 30 held by the floor portion 40 is prevented from being twisted to either one side of the adjacent mobile units 1, 100, and it is possible to contribute to ensuring the rainproofing at the connection portion between the adjacent mobile units 1, 100.

[0016] The invention according to claim 6 is, for example, as shown in FIGS. 4 to 7, in the connection structure of the mobile units 1, 100 according to claim 1, The adjacent mobile units 1, 100 include a first mobile unit 1 located on one side and a second mobile unit 100 located on the other side. the waterproof sheet portion 30 has an inner sheet portion 31 located on the side of the communication ports 14a, 114a, and an outer sheet portion 32 located outside the inner sheet portion 31, the inner sheet portion 31 and the outer sheet portion 32 are each configured to be separable on the side of the first mobile unit 1 and the side of the second mobile unit 100, and a second heat insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32.

[0017] According to the invention described in claim 6, the waterproof sheet portion 30 has an inner sheet portion 31 located on the side of the connection ports 14a, 114a and an outer sheet portion 32 located outside the inner sheet portion 31. The inner sheet portion 31 and the outer sheet portion 32 are each configured to be separable on the side of the first mobile unit 1 and the side of the second mobile unit 100. Therefore, adjacent mobile units 1, 100 can be easily connected in a state where they can freely move back and forth between the adjacent mobile units 1, 100 and can also be easily separated, so that a plurality of mobile units 1, 100 can be maintained in a state where they can move at any time and arbitrarily. Furthermore, since the second heat insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32, the heat insulation performance at a location above the floor portion 40 of the passage space 20 can be improved. Thereby, it becomes easier to support the comfort of the thermal environment in the internal spaces of the first mobile unit 1 and the second mobile unit 100 adjacent to the passage space 20.

Effects of the Invention

[0018] According to the present invention, a plurality of mobile units can be easily connected and easily separated so that a plurality of mobile units can be maintained in a state where they can move at any time and arbitrarily, and furthermore, rainproofing at the connection locations between the plurality of mobile units can be ensured.

Brief Description of the Drawings

[0019]

Figure 1

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Embodiments for Carrying out the Invention

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various technically preferable limitations for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Note that the directions and orientations in the following embodiments and illustrated examples are set solely for convenience of explanation.

[0021] In FIG. 1 and the like, reference numerals 1 and 100 denote mobile units. The mobile units 1 and 100 of the present embodiment are trailer houses, which are placed on a cart 2 and towed and transported by an automobile (not shown), and can be placed at a stationary location while being placed on the cart 2.

[0022] Further, the mobile units 1 and 100 have obtained vehicle inspections and are set to sizes within the legal regulations (Building Standards Law, Road Transport Vehicle Law) (restriction values in Article 2 of the safety standards: within a vehicle width of 2.5 m, within a vehicle length of 12 m, and within a vehicle height of 3.8 m). Thereby, the mobile units 1 and 100 can legally move on public roads. However, in some cases, they may be set to sizes larger than the restriction values by obtaining special permission. Furthermore, the mobile units 1, 100 shall satisfy all the criteria required for being placed at a stationary location.

[0023] The carriage 2, also called a chassis, includes a support base 3 to which wheels 3a are attached, and a plurality of support legs (not shown) detachably provided on the support base 3. The support base 3 has the box-shaped unit body of the mobile units 1, 100 placed thereon and integrated therewith. Also, it is assumed that a connecting portion 3b that protrudes forward and is connected to an automobile is integrally formed at the front end portion of the support base 3. The plurality of support legs are provided at a total of six locations, namely, at the four corners of the support base 3 and at two locations near the wheels 3a (the center in the length direction of the support base 3). The support legs are jack devices capable of manually raising and lowering the portion in contact with the support base 3.

[0024] The mobile units 1, 100 are arranged adjacent to each other at a location where they can be placed stationary. In the present embodiment, the rear end portion of the other mobile unit 100 (hereinafter, the second mobile unit 100) abuts against the left side surface at the front end portion of one mobile unit 1 (hereinafter, the first mobile unit 1), and they are arranged in an L shape in plan view. However, a slight gap is strictly formed between these mobile units 1, 100. The width of the gap is set to be about 100 to 300 mm, for example. Also, the length of the gap between the mobile units 1, 100 is equal to the length in the left-right width direction at the rear end portion of the second mobile unit 100. Furthermore, the height of the gap between the mobile units 1, 100 is equal to the length in the height direction of the mobile units 1, 100. Also, such mobile units 1, 100 are arranged in a state where the communication ports 14a, 113a formed on the side surfaces facing each other are directly opposed (in a parallel positional relationship and facing each other directly in the front).

[0025] Further, at least one of the mobile units 1, 100 is formed with an entrance / exit 113a different from the communication ports 14a, 113a. In the present embodiment, as shown in FIGS. 1 and 2, an entrance / exit 115a is formed in the fourth side wall 115 of the second mobile unit 100. An entrance door 115b is provided at the entrance / exit 115a, and this entrance / exit 115a can be used as a front door.

[0026] 〔Regarding the configuration of the mobile unit〕 Next, the configuration of the mobile units 1, 100 will be described in detail. Note that the mobile units 1, 100 of the present embodiment, which are trailer houses, are assumed to include a carriage 2. Hereinafter, the box-shaped unit body placed on the support base 3 of the carriage 2 will be described. In the present embodiment, the mobile unit 1 located on the right side in FIG. 1 is referred to as the first mobile unit 1, and the mobile unit 100 located on the left side is referred to as the second mobile unit 100.

[0027] As shown in FIGS. 4, 5, etc., the unit bodies of the first mobile unit 1 and the second mobile unit 100 include, as an outer shell, a floor 10, 110 placed on the support base 3 and integrated, a roof 11, 111, and four side walls 12 to 15, 112 to 115 provided between the floor 10, 110 and the roof 11, 111, and are formed in a box shape. Such a unit body is formed in a rectangular parallelepiped shape that is long in one direction (front-rear direction) and short in the other direction (left-right direction) in plan view. In the case of the first mobile unit 1 arranged on the L side in plan view, it is long in the north-south direction and short in the east-west direction in plan view. On the other hand, in the case of the second mobile unit 100, it is long in the east-west direction and short in the north-south direction in plan view.

[0028] The beds 10, 110 are long in one direction (front - rear direction) and short in the other direction (left - right direction), forming a rectangle in plan view, and constitute the entire surface of the beds 10, 110 in the spaces within the first mobile unit 1 and the second mobile unit 100. Note that the beds 10, 110 are such that the bed body is composed of a hollow - interior architectural wooden panel. A floor finishing material (e.g., a flooring material) is provided on the upper surface of the bed body, and a heat - insulating material is filled in the interior hollow part.

[0029] The roof 11 of the first mobile unit 1 is a single - slope roof where the side adjacent to the second mobile unit 100 (west side) is high and the opposite side (east side) is low. The roof 111 of the second mobile unit 100 is a single - slope roof where the north side is high and the south side is low in a direction parallel to the length direction of the first mobile unit 1 adjacent to it. Therefore, when the first mobile unit 1 and the second mobile unit 100 are arranged adjacent to each other in an L - shape in plan view as described above, in the direction of the roof flow, the mobile units 1, 100 adjacent to itself are not arranged. Thus, the rainwater flowing on the roofs 11, 111 does not flow towards the adjacent mobile units 1, 100, which is preferable. Note that the roofs 11, 111 are such that the roof body is composed of a hollow - interior architectural wooden panel. A roofing material (e.g., a galvanized steel sheet roof (registered trademark)) is provided on the surface of the roof body, and a heat - insulating material is filled in the interior hollow part. Also, a ceiling material (e.g., a decorative ceiling board material) is attached to the lower surface of the roof body. Since the roofs 11, 111 are single - slope roofs, when viewed from the inside of the unit body, the ceiling is a sloped ceiling. However, it is not limited to this, and a horizontal ceiling composed of a soffit or a ceiling material etc. may be formed below the roof body.

[0030] The first mobile unit 1 has, as four - sided side walls, a first side wall 12, a second side wall 13, a third side wall 14, and a fourth side wall 15. The first side wall 12 is provided at one end side (front - end side, south side) in the length direction of the bed 10. The second side wall 13 is provided on the other end side (rear end side, north side) in the length direction of the floor 10. The third side wall 14 is provided between the other end in the width direction (left end, west side) of the first side wall 12 and the other end in the width direction (left end, west side) of the second side wall 13. The fourth side wall 15 is provided between one end in the width direction (right end, east side) of the first side wall 12 and one end in the width direction (right end, east side) of the second side wall 13. The first side wall 12 and the second side wall 13 form the front and rear surfaces of the unit body and have a short width dimension (dimension in the left-right direction). The third side wall 14 and the fourth side wall 15 form the left and right side surfaces of the unit body and have a long width dimension (dimension in the front-rear direction). Note that the four side walls 12 to 15 are such that the wall body is composed of a hollow building wooden panel. An outer wall material (for example, a galvanized steel plate outer wall or a siding material) is provided on the outdoor side of the wall body, an inner wall material (for example, a gypsum board) is provided on the indoor side, and a wall finishing material (for example, a cloth) is applied, and the inner hollow portion is filled with a heat insulating material.

[0031] Among the four side walls 12 to 15 in the first mobile unit 1, a first communication port 14a, which is an opening for people to pass through, is formed on the front end side (south side) of the third side wall 14 located on the side of the second mobile unit 100. In addition, a first door 14b for opening and closing the first communication port 14a is provided on this third side wall 14. The first door 14b is a single-opening door and is an inward-opening door that opens to the inner space side of the first mobile unit 1.

[0032] The second mobile unit 100 has, as four side walls, a first side wall 112, a second side wall 113, a third side wall 114, and a fourth side wall 115. The first side wall 112 is provided on one end side (front end side, west side) in the length direction of the floor 110. The second side wall 113 is provided on the other end side (rear end side, east side) in the length direction of the floor 110. The third side wall 114 is provided between the other end in the width direction (the left end, the north side) of the first side wall 112 and the other end in the width direction (the left end, the north side) of the second side wall 113. The fourth side wall 115 is provided between one end in the width direction (the right end, the south side) of the first side wall and the one end in the width direction (the right end, the south side) of the second side wall 113. As described above, the positional relationship of the four side walls 112 to 115 in the second mobile unit 100 is not symmetric with the positional relationship of the four side walls 12 to 15 in the first mobile unit 1.

[0033] Also, among the four side walls 112 to 115 in the second mobile unit 100, the wall body of the second side wall 113 located on the side of the first mobile unit 1 is composed of a wooden building panel with a hollow interior. An outer wall material (for example, a galvanized steel plate outer wall or a siding material) is provided on the outdoor side of the wall body, an inner wall material (for example, a gypsum board) is provided on the indoor side, and a wall finishing material (for example, a cloth) is applied, and the inner hollow part is filled with a heat insulating material.

[0034] And, among the four side walls 112 to 115 in the second mobile unit 100, a second communication port 113a, which is an opening for people to pass through, is formed in the second side wall 113 located on the side of the first mobile unit 1. Also, a second door 113b for opening and closing the second communication port 113a is provided on this second side wall 113. The second door 113b is a single - leaf door and is an inward - opening door that opens to the inner space side of the second mobile unit 100.

[0035] Further, as described above, an entrance / exit 115a, which is an opening for people to pass through, is formed in the fourth side wall 115 of the second mobile unit 100. This entrance / exit 115a is not directed towards the first mobile unit 1 side, but towards the outdoor space. Therefore, this entrance / exit 115a will function as the front entrance of the second mobile unit 100. Furthermore, a front door 115b, which is a door for opening and closing the entrance / exit 115a, is provided on the fourth side wall 115. Thereby, through the entrance / exit 115a, it is possible to enter and exit between the internal space of the second mobile unit 100 and the outdoor space. Note that since the unit body of the second mobile unit 100 is arranged at a certain height position by the trolley 2, the height position of the entrance / exit 115a also becomes high. Therefore, it is assumed that lifting facilities such as stairs or slopes are installed on the outdoor side of the entrance / exit 115a in a state of not being fixed to the second mobile unit 100.

[0036] The first mobile unit 1 and the second mobile unit 100 configured as described above are adjacent to each other in a place where they can be stationary, and the communication ports 14a and 113a formed on the side walls 14 and 113 facing each other are arranged in a state where they face each other (in a parallel positional relationship and facing directly). The first communication port 14a is formed at the front end side of the third side wall 14 constituting the left side surface of the first mobile unit 1, and the second communication port 113a is formed on the second side wall 113 constituting the rear end surface of the second mobile unit 100. Therefore, when the first mobile unit 1 and the second mobile unit 100 are arranged so that the communication ports 14a and 113a face each other, the first mobile unit 1 and the second mobile unit 100 will be arranged to form an L shape in plan view.

[0037] 〔Regarding the connection and enclosure means〕 Next, the connection and enclosure means for connecting adjacent mobile units 1 and 100 to each other and forming the passage space 20 will be described.

[0038] As shown in FIGS. 3 to 12, the connecting and surrounding means is provided between adjacent mobile units 1 and 100 to connect the mobile units 1 and 100 to each other, and surrounds the space between the first communication port 14a on the first mobile unit 1 side and the second communication port 113a on the second mobile unit 100 side to form a passage space 20. In other words, the space surrounded by the connecting and surrounding means is used as the passage space 20 for coming and going between the first mobile unit 1 and the second mobile unit 100.

[0039] The passage space 20 has an upper edge portion 20a, a first side edge portion 20b, a second side edge portion 20c, and a lower edge portion 20d defined by the connecting and surrounding means. The upper edge portion 20a refers to a portion located above the first communication port 14a and the second communication port 114a, and is formed in a mountain shape. The first side edge portion 20b refers to a linear portion located between the southern end of the upper edge portion 20a and the southern end of the lower edge portion 20d. The second side edge portion 20c refers to a linear portion located between the northern end of the upper edge portion 20a and the northern end of the lower edge portion 20d. The lower edge portion 20d refers to a linear portion located between the lower end of the first side edge portion 20b and the lower end of the second side edge portion 20c.

[0040] The connecting and surrounding means for defining such a passage space 20 includes a waterproof sheet portion 30 and a floor portion 40, and further includes a first holding portion 21 and a second holding portion 22 as means for holding the waterproof sheet portion 30. The waterproof sheet portion 30 of the present embodiment has an inner sheet portion 31 located on the communication port 14a, 113a side and an outer sheet portion 32 located outside the inner sheet portion 31. Therefore, the first holding portion 21 and the second holding portion 22 for holding the waterproof sheet portion 30 also have an inner holding portion 21A, 22A (first inner holding portion 21A, second inner holding portion 22A) located inside and a holding portion 21B, 22B (first outer holding portion 21B, second outer holding portion 22B) located outside, respectively.

[0041] The inner sheet portion 31 of the waterproof sheet portion 30 includes a first inner sheet piece 311 located on the side of the first mobile unit 1, a second inner sheet piece 312 located on the side of the second mobile unit 100, and an inner waterproof fastener 313 that connects the first inner sheet piece 311 and the second inner sheet piece 312.

[0042] The outer sheet portion 32 of the waterproof sheet portion 30 includes a first outer sheet piece 321 located on the side of the first mobile unit 1, a second outer sheet piece 322 located on the side of the second mobile unit 100, and an outer waterproof fastener 323 that connects the first outer sheet piece 321 and the second outer sheet piece 322.

[0043] The inner sheet portion 31 and the outer sheet portion 32 are made of a highly waterproof fabric such as tent fabric. The inner waterproof fastener 313 and the outer waterproof fastener 323 include a waterproof first tape portion welded to the sheet pieces 311, 321 (the first inner sheet piece 311 and the first outer sheet piece 321) on the side of the first mobile unit 1, a waterproof second tape portion welded to the sheet pieces 312, 322 (the second inner sheet piece 312 and the second outer sheet piece 322) on the side of the second mobile unit 100, a first element portion provided at the edge of the first tape portion and having a serrated head portion, a second element portion provided at the edge of the second tape portion and having a serrated head portion, and a slider portion (not shown) that meshes or disengages the first element portion and the second element portion. And the first element portion and the second element portion are in a shape that exhibits waterproof performance when they are meshed and connected to each other. The slider portion is attached to either one of the sheet pieces 311, 321 on the side of the first mobile unit 1 and the sheet pieces 312, 322 on the side of the second mobile unit 100. Also, the slider portion is arranged on the side of the passage space 20 so that the connection and disconnection operations of the sheet pieces 311, 321 on the side of the first mobile unit 1 and the sheet pieces 312, 322 on the side of the second mobile unit 100 can be performed from the side of the passage space 20.

[0044] Also, the sheet pieces 311 and 321 (the first inner sheet piece 311 and the first outer sheet piece 321) on the first mobile unit 1 side are provided with a strip-shaped waterproof material 33 provided along the front and back of the edge (base end portion) on the side held by the first holding portion 21 (the first inner holding portion 21A and the first outer holding portion 21B), and a plurality of caulking portions 34 forming through holes into which the fixing member 25 (bolt) is inserted. For example, an EPT sealer is used as the waterproof material 33. The plurality of caulking portions 34 are provided so as to border through holes penetrating the sheet pieces 311 and 321 on the first mobile unit 1 side and the front and back waterproof materials 33. The plurality of caulking portions 34 are arranged at predetermined intervals along the edge of the sheet pieces 311 and 321 on the first mobile unit 1 side.

[0045] Similarly, the sheet pieces 312 and 322 (the second inner sheet piece 312 and the second outer sheet piece 322) on the second mobile unit 100 side are also provided with a strip-shaped waterproof material 33 provided along the front and back of the edge on the side held by the second holding portion 22 (the second inner holding portion 22A and the second outer holding portion 22B), and a plurality of caulking portions 34 forming through holes into which the fixing member 25 (bolt) is inserted.

[0046] The first holding portion 21 holds the inner sheet portion 31 (the first inner sheet piece 311) and the outer sheet portion 32 (the first outer sheet piece 321) provided on the first mobile unit 1 side, and includes a first inner holding portion 21A, a first outer holding portion 21B, a lower floor portion 23, a sheet metal cover 24, and a fixing member 25.

[0047] The lower floor portion 23 is a plate portion that serves as a fixing base for fixing the first inner holding portion 21A and the first outer holding portion 21B, and is attached to the third side wall 14 of the first mobile unit 1 along the peripheral edge (upper edge portion and both side edge portions) of the first communication port 14a formed in the third side wall 14. The sheet metal cover 24 is a thin metal plate that covers the lower floor portion 23. The first inner holding portion 21A and the first outer holding portion 21B are fixed to the lower floor portion 23 with screws or the like via this sheet metal cover 242.

[0048] The first inner holding portion 21A holds the first inner sheet piece 311 which is the inner sheet portion 31 on the first mobile unit 1 side, and is fixed to the lower floor portion 23 attached to the third side wall 14 of the first mobile unit 1. Such a first inner holding portion 21A has a pair of angle members which are metal fittings with an L-shaped cross-section. One side of the L-shape of these pair of angle members is a fixing piece fixed to the lower floor portion 23, and the other side of the L-shape is a holding piece for holding the first inner sheet piece 311. Through holes for fixing members such as screws for fixing the angle members to the lower floor portion 23 are formed at predetermined intervals in the fixing piece. Further, through holes are formed in the holding piece at positions corresponding to a plurality of stitching portions 34 (through holes) in the first inner sheet piece 311 so that the fixing member 25 can pass through. That is, the base end portion (the edge portion on the side where the watertight material 33 and the stitching portion 34 are located) of the first inner sheet piece 311 can be sandwiched between the holding pieces of the pair of angle members and fixed with the fixing member 25.

[0049] The pair of angle members are divided into a plurality of parts so that the fixing work can be divided into a plurality of steps. That is, as shown in FIG. 3, in the passage space 20 of the present embodiment, the upper edge portion 20a is formed in a mountain shape, and one side edge portion 20b and the other side edge portion 20c are formed in a straight line. And the parts of the angle member a that define the shape of such a passage space 20 include a mountain-shaped part at the apex portion, a bent part that constitutes the bent portion between the upper edge portion 20a and one side edge portion 20b and the other side edge portion 20c, a straight part that connects the mountain-shaped part and the bent parts on both sides, and a plurality of straight parts that constitute one side edge portion 20b and the other side edge portion 20c.

[0050] The fixing member 25 includes a pair of angle members, a bolt inserted into a through hole (stitching portion 34) in the first inner sheet piece 311, a nut provided by screwing the tip of the shaft portion of the bolt, and washers provided between each of the bolt and the nut and the pair of angle members.

[0051] The first outer holding portion 21B holds the first outer sheet piece 321 which is the outer sheet portion 32 on the first mobile unit 1 side, and is fixed to the lower floor portion 23 attached to the third side wall 14 of the first mobile unit 1. Such a first outer holding portion 21B has a first angle member attached to the surface of the lower floor portion 23 and a second angle member attached in a state of being inserted into a slit 23a formed at the outer end of the lower floor portion 23. These angle members have a fixing piece with one side forming an L shape fixed to the lower floor portion 23, and the other side forming an L shape serving as a holding piece for holding the first outer sheet piece 321. Through holes for passing fixing materials such as screws for fixing the angle members to the lower floor portion 23 are formed at predetermined intervals in the fixing piece. Further, through holes are formed in the holding piece at positions corresponding to a plurality of stitching portions 34 (through holes) in the first outer sheet piece 321 so that the fixing member 25 can pass through. That is, the base end portion (the edge on the side with the waterproof material 33 and the stitching portion 34) of the first outer sheet piece 321 is sandwiched between the holding pieces of these angle members and can be fixed by the fixing member 25.

[0052] Similar to the pair of angle members in the first inner holding portion 21A, these angle members are also divided into a plurality of parts so that the fixing operation can be divided into a plurality of steps. Also, the fixing member 25 used for fixing the first outer sheet piece 321 is one provided with a bolt, a nut, and a washer.

[0053] The second holding part 22 holds an inner sheet part 31 (second inner sheet piece 312) and an outer sheet part 32 (second outer sheet piece 322) provided on the second mobile unit 100 side, and includes a second inner holding part 22A, a second outer holding part 22B, a bottom floor part 23, a sheet metal cover 24, and a fixing member 25.

[0054] The bottom floor part 23 and the sheet metal cover 24 are attached to the second side wall 113 of the second mobile unit 100 along the peripheral edge (upper edge and both side edges) of a second communication port 113a formed in the second side wall 113. The sheet metal cover 24 covers the bottom floor part 23. The bottom floor part 23 and the sheet metal cover 24 on the second mobile unit 100 side are provided in a state symmetric to the bottom floor part 23 and the sheet metal cover 24 on the first mobile unit 1 side.

[0055] The second inner holding part 22A holds the second inner sheet piece 312 which is the inner sheet part 31 on the second mobile unit 100 side, and is fixed to the bottom floor part 23 attached to the second side wall 113 of the second mobile unit 100. Such a second inner holding part 22A has a configuration symmetric to the first inner holding part 21A provided on the first mobile unit 1 side. That is, it has a pair of angle members which are metal fittings with an L-shaped cross section, and the second inner sheet piece 312 can be sandwiched between the holding pieces of the pair of angle members and fixed with the fixing member 25.

[0056] The second outer holding part 22B holds the second outer sheet piece 322 which is the outer sheet part 32 on the second mobile unit 100 side, and is fixed to the bottom floor part 23 attached to the second side wall 113 of the second mobile unit 100. Such a second outer holding part 22B has a configuration symmetric to that of the first outer holding part 21B provided on the side of the first mobile unit 1. That is, it has a first angle member attached to the surface of the lower floor part 23 and a second angle member attached so as to be inserted into the slit 23a of the lower floor part 23, and a second outer sheet piece 322 can be sandwiched between the holding pieces of these angle members and fixed with a fixing member 25.

[0057] The inner sheet part 31 and the outer sheet part 32 in the waterproof sheet part 30 are provided across between adjacent mobile units 1 and 100 in such a manner that the edge on the side of the first mobile unit 1 is held by the first holding part 21 (the first inner holding part 21A and the first outer holding part 21B), and the edge on the side of the second mobile unit 100 is held by the second holding part 22 (the second inner holding part 22A and the second outer holding part 22B). And between the inner sheet part 31 and the outer sheet part 32, a heat insulating material 35 (second heat insulating material) such as glass wool is filled. Also, the range where the waterproof sheet part 30 covers the passage space 20 is the upper edge part 20a, one side edge part 20b, and the other side edge part 20c of the passage space 20. Therefore, the range where the above heat insulating material 35 is filled is also the range of the upper edge part 20a, one side edge part 20b, and the other side edge part 20c of the passage space 20. The lower edge part 20d of the passage space 20 is covered by the floor part 40.

[0058] The floor part 40 is bridged between the adjacent mobile units 1 and 100 without being fixed to the adjacent mobile units 1 and 100 and is disposed at the lower edge part 20d of the passage space 20. Such a floor part 40 includes a support part 41 bridged between the adjacent mobile units 1 and 100, a floor surface part 42 detachably fixed to the upper surface of the support part 41, a seal material 43 sandwiched between the support part 41 and the floor surface part 42, and a first fixing material 44 for fixing the floor surface part 42 to the support part 41, as shown in FIGS. 7 to 12.

[0059] In this embodiment, two (a pair of) support portions 41 are used. The two support portions 41 are arranged at intervals in the width direction (north-south direction) of the passage space 20 in the gap between the mobile units 1 and 100. Such a support portion 41 has a pair of installation portions 400 provided across adjacent mobile units 1 and 100, and a support portion main body 410 provided across the pair of installation portions 400 and formed in a box shape.

[0060] The installation portion 400 is a rectangular plate made of metal, and a through hole 400a penetrating the installation portion 400 is formed at the center. The through hole 400a is a tap hole into which a fixing member 401 (wing bolt 401) for fixing the support portion main body 410 is screwed. Each of the pair of installation portions 400 has one end in the longitudinal direction placed on the support base 3 of the carriage 2 on the first mobile unit 1 side, and the other end placed on the support base 3 of the carriage 2 on the second mobile unit 100 side.

[0061] The support portion main body 410 is provided across the pair of installation portions 400. That is, it is in a state of being provided across the pair of installation portions 400. The support portion main body 410 is formed long in the direction across the pair of installation portions 400 in a plan view. In other words, the support portion main body 410 is formed short in the adjacent direction of the adjacent mobile units 1 and 100 in a plan view.

[0062] Such a support portion main body 410 is formed in a box shape by a top plate portion 411 and four side plate portions 412 integrally formed on the four sides of the top plate portion 411, as shown in FIG. 10. A through hole 411a penetrating the top plate portion 411 is formed at the center of the upper surface of the top plate portion 411, and a nut 411b is welded at the center of the lower surface of the top plate portion 411 in alignment with the position of the through hole 411a. The first fixing member 44 is screwed into the nut 411b. Note that as the first fixing member 44 in this embodiment, a wing bolt that can be tightened and loosened by hand is adopted.

[0063] Further, the support part main body 410 has a mounting plate 413 that projects outward from the lower ends of the side plate parts 412 at both longitudinal ends among the four side plate parts 412, and auxiliary plates 414 that project outward from the lower ends of the side plate parts 412 at both short-side ends among the four side plate parts 412.

[0064] The entire mounting plate 413 is adapted to be placed on the upper surface of the installation part 400. At a position facing the through hole 400a of the installation part 400, elongated holes 413a that are set long in the adjacent direction of the adjacent mobile units 1, 100 are formed. Elongated holes 413a are formed in both of the mounting plates 413 at both ends. As shown in FIG. 10(d), these elongated holes 413a extend from the center of the mounting plate 413 in the direction in which one of the adjacent mobile units 1, 100 is located and are formed to have the same length. Thereby, the support part main body 410 can be placed on a pair of installation parts 400 provided across the adjacent mobile units 1, 100 and the position adjustment between the adjacent mobile units 1, 100 can be performed. That is, a fixing material 401 is passed through the elongated hole 413a of the mounting plate 413 and the through hole 400a of the installation part 400. Before completely fixing the support part main body 410 and the installation part 400, the position of the support part main body 410 is adjusted, and when the position is determined, the fixing material 401 is tightened firmly.

[0065] Both end portions in the length direction of the auxiliary plate 414 are in a state of being placed on a pair of installation parts 400. Thereby, it becomes easier to prevent the support part main body 410 from shifting or tilting in the short-side direction.

[0066] The floor surface part 42 has a base part 420 that is placed on the support part 41 spanned between adjacent mobile units 1, 100 and fixed to the support part 41 by a first fixing material 44, a floor finishing part 430 that is detachably fixed to the upper surface of the base part 420 and constitutes the floor surface of the passage space 20, and a second fixing material 440 for fixing the floor finishing part 430 to the base part 420.

[0067] The base part 420 is provided by being spanned across a pair of support parts 41 arranged at intervals in the width direction (north-south direction) of the passage space 20. As shown in FIG. 11, such a base part 420 is configured such that a pair of vertical frame members 421 and a pair of horizontal frame members 422 are assembled in a rectangular shape to form a frame body, an upper surface member 423 is attached to the upper surface of this frame body, and a lower surface member 424 is attached to the lower surface, having an internally hollow structure. Further, a heat insulating material 425 such as glass wool or rock wool is loaded into the internally hollow portion.

[0068] The upper surface member 423 is formed with a long hole-shaped work hole part 423c through which the heat insulating material 425 can be taken in and out. Further, the work hole part 423c is set to an opening width that allows a person to insert a hand to perform the tightening and loosening operations of the first fixing member 44. That is, when performing the tightening and loosening operations of the first fixing member 44, the heat insulating material 425 is taken out from the work hole part 423c, and then a person inserts a hand through the work hole part 423c to perform the operations. In addition, through holes 423a into which second fixing members 440 for fixing the floor finishing part 430 are inserted are formed at both ends in the length direction of the upper surface member 423, and nuts 423b are fixed to the lower surface of the upper surface member 423 at positions corresponding to the through holes 423a. That is, the second fixing member 440 is passed through the through hole 423a of the upper surface member 423 and screwed into the nut 423b.

[0069] Through holes 424a into which first fixing members 44 for fixing the base part 420 to the pair of support parts 41 are inserted are formed at both ends in the length direction of the lower surface member 424. In addition, recesses 424b are formed on the tip side of both ends in the length direction of the lower surface member 424 with respect to the through holes 424a. These recesses 424b are for housing the waterproof fasteners 313 and 323 located at the lower end of the waterproof sheet part 30, and are formed in an open state on the lower side and the end face side. In the waterproof sheet part 30, when the inner sheet part 31 and the outer sheet part 32 are left hanging as shown by the broken lines in Fig. 8, not only does it look bad, but a gap is also formed between the inner sheet part 31 and the floor part 40, and the second heat insulating material 35 filled between the inner sheet part 31 and the outer sheet part 32 also cannot be supported properly. Therefore, the lower ends of the inner sheet part 31 and the outer sheet part 32 are sandwiched between the support part 41 and the floor surface part 42 so that no gap is formed between the inner sheet part 31 and the floor part 40. Furthermore, since the lower end of the gap between the inner sheet part 31 and the outer sheet part 32 can also be closed, the fall of the second heat insulating material 35 can be prevented and the appearance can also be improved. And, since the sliders and stopper parts of the inner waterproof fastener 313 and the outer waterproof fastener 323 exist at the lower ends of the inner sheet part 31 and the outer sheet part 32, it is difficult to directly sandwich them between the support part 41 and the floor surface part 42. However, since the recesses 424b are formed at both ends in the length direction of the lower surface material 424 of the base part 420, the sliders and stopper parts of the inner waterproof fastener 313 and the outer waterproof fastener 323 can be stored in these recesses 424b. As a result, the fit is improved when sandwiching the lower ends of the inner sheet part 31 and the outer sheet part 32 between the support part 41 and the floor surface part 42.

[0070] The floor finishing part 430 is a flooring material that is exposed in the passage space 20 and constitutes the floor surface, and is placed on the upper surface of the base part 420 and fixed to the base part 420. At both ends in the length direction of such a floor finishing part 430, the seat recesses 431 are formed, and through holes 432 into which the second fixing material 440 is inserted are formed at the centers of these seat recesses 431. Since the second fixing material 440 employs a wing bolt, the head of the second fixing material 440 inserted into the through hole 432 is designed to fit into the seat recess 431. A cap can be fitted into the seat recess 431 to hide the head of the second fixing material 440.

[0071] The left and right corners at both ends in the length direction of the floor finishing part 430 are notch corners 433 formed by being notched in an L shape in plan view. That is, the four corners of the floor finishing part 430 are notched in an L shape in plan view, and the floor finishing part 430 has four notch corners 433. Such notch corners 433 are formed to absorb the protrusion of the furniture sash frame that forms the first connection port 14a on the first mobile unit 1 side and the second connection port 113a on the second mobile unit 100 side, as shown in FIG. 7 and the like.

[0072] Subsequently, the sealing material 43 is, for example, an EPT sealing sheet, and as shown in FIGS. 9 and 11, it is set to project in all directions (east, west, south, north) with respect to the base part 420. Such a sealing material 43 is a sheet sandwiched between the support part 41 and the floor surface part 42, and a through hole 43a is formed at a position where the first fixing material 44 passes from the floor surface part 42 toward the support part 41. And the sealing material 43 sandwiched between the support part 41 and the floor surface part 42 is provided so as to be bridged between adjacent mobile units 1 and 100, as shown in FIG. 9. More specifically, drain materials 14c and 113c are attached below the furniture sash frames that constitute the first connection port 14a and the second connection port 113a in adjacent mobile units 1 and 100. The sealing material 43 is provided so as to be bridged between these drain materials 14c and 113c.

[0073] Also, as shown in FIG. 9, in the upper surface of the sealing material 43 and in the gap between the floor surface part 42 and the adjacent mobile units 1 and 100 to the floor surface part 42, a first heat insulating material 45 for improving the heat insulation of the floor part 40 is filled. The first heat insulating material 45 may be filled in the gaps between both ends in the length direction of the floor part 40 (base part 420 and floor finishing part 430) and the inner sheet part 31, as shown in FIG. 7.

[0074] Note that the sealing material 43 is sandwiched between the support portion 41 and the floor surface portion 42 together with the lower end portions of the inner sheet portion 31 and the outer sheet portion 32. At this time, the sealing material 43 is located above the inner sheet portion 31 and the outer sheet portion 32. That is, the sealing material 43 is laminated on the lower end portions of the inner sheet portion 31 and the outer sheet portion 32, the floor surface portion 42 is disposed thereon, and then the floor surface portion 42 is fixed to the support portion 41 by the first fixing member 44.

[0075] 〔Regarding the connection work of the mobile unit〕 Next, a case where the first mobile unit 1 and the second mobile unit 100 are connected by the connection and surrounding means will be described.

[0076] First, the bottom plate portion 23 and the sheet metal cover 24 are attached to the third side wall 14 of the first mobile unit 1 and the second side wall 113 of the second mobile unit 100. Regarding the attachment of the bottom plate portion 23 and the sheet metal cover 24, it may be carried out on site, but basically it is carried out at the manufacturing stage of the first mobile unit 1 and the second mobile unit 100.

[0077] Subsequently, the angle members of the first holding portion 21 and the second holding portion 22 are fixed to the bottom plate portion 23. Regarding the fixing of the angle members in the first inner holding portion 21A, the first outer holding portion 21B, the second inner holding portion 22A, and the second outer holding portion 22B, it may be carried out on site, but it may also be carried out at the manufacturing stage of the first mobile unit 1 and the second mobile unit 100. In particular, regarding the second angle member that is inserted into the slit 23a of the bottom plate portion 23 among the first outer holding portion 21B and the second outer holding portion 22B, it is desirable to be fixed at the manufacturing stage.

[0078] In this embodiment, the attachment of the bottom plate portion 23 and the sheet metal cover 24, and the fixing of the angle members of the first holding portion 21 and the second holding portion 22 are assumed to be performed at the manufacturing stage of the first mobile unit 1 and the second mobile unit 100. In that case, subsequently, the first mobile unit 1 and the second mobile unit 100 are placed on the cart 2 and towed and transported by an automobile (not shown), and while being placed on the cart 2, they are placed at a locatable location. At that time, the first mobile unit 1 and the second mobile unit 100 are adjacently arranged so that the first connection port 14a and the second connection port 113a face each other.

[0079] Subsequently, the first outer sheet piece 321 on the first mobile unit 1 side in the outer sheet portion 32 is sandwiched between both angle members of the first outer holding portion 21B in the first holding portion 21 and fixed by the fixing member 25, so that the first outer sheet piece 321 is held on the first mobile unit 1 side. Also, the second outer sheet piece 322 on the second mobile unit 100 side in the outer sheet portion 32 is sandwiched between both angle members of the second outer holding portion 22B in the second holding portion 22 and fixed by the fixing member 25, so that the second outer sheet piece 322 is held on the second mobile unit 100 side.

[0080] Subsequently, the first inner sheet piece 311 on the first mobile unit 1 side in the inner sheet portion 31 is sandwiched between both angle members of the first inner holding portion 21A in the first holding portion 21 and fixed by the fixing member 25, so that the first inner sheet piece 311 is held on the first mobile unit 1 side. Also, the second inner sheet piece 312 on the second mobile unit 100 side in the inner sheet portion 31 is sandwiched between both angle members of the second inner holding portion 22A in the second holding portion 22 and fixed by the fixing member 25, so that the second inner sheet piece 312 is held on the second mobile unit 100 side. Note that the operation of holding the inner sheet portion 31 and the outer sheet portion 32 can be performed from the passage space 20 side.

[0081] Subsequently, the first outer sheet piece 321 on the side of the first mobile unit 1 and the second outer sheet piece 322 on the side of the second mobile unit 100 are connected by an outer waterproof fastener 323. The first outer sheet piece 321 and the second outer sheet piece 322 connected by the outer waterproof fastener 323 can be treated as one outer sheet portion 32.

[0082] Subsequently, the first inner sheet piece 311 on the side of the first mobile unit 1 and the second inner sheet piece 312 on the side of the second mobile unit 100 are connected by an inner waterproof fastener 313. The first inner sheet piece 311 and the second inner sheet piece 312 connected by the inner waterproof fastener 313 can be treated as one inner sheet portion 31. Also, simultaneously with connecting the first inner sheet piece 311 and the second inner sheet piece 312 by the inner waterproof fastener 313, an operation of filling the second heat insulating material 35 between the inner sheet portion 31 and the outer sheet portion 32 is performed.

[0083] Subsequently, a pair of support portions 41 in the floor portion 40 are respectively bridged and provided between the support bases 3 of the adjacent mobile units 1 and 100. That is, a pair of bridging portions 400 in each support portion 41 are respectively bridged and provided between the support bases 3. The pair of bridging portions 400 and the support portion main body 410 are in a state before being completely fixed by the fixing material 401 and are in a state where position adjustment is possible. The positioning of the support portion main body 410 may be performed when the pair of bridging portions 400 are respectively bridged between the support bases 3, or may also be performed after the positions of the base portion 420 or the floor finishing portion 430 are determined to some extent. In the present embodiment, it is assumed that the positioning is performed when the pair of bridging portions 400 are respectively bridged between the support bases 3.

[0084] Subsequently, the lower end portions of the inner sheet portion 31 and the outer sheet portion 32 (i.e., both end portions in the length direction of the waterproof sheet portion 30) are folded onto the upper surfaces of the pair of support portions 41. After laying the sealing material 43 thereon, the base portion 420 of the floor surface portion 42 is placed thereon. Then, the base portion 420 is bridged over the pair of support portions 41 and fixed to the pair of support portions 41 by the first fixing member 44. That is, the first fixing member 44 is passed through the through hole 424a in the lower surface material 424 of each base portion 420, the through hole 43a of the sealing material 43, and the through hole 411a in the top plate portion 411 of the support portion main body 410 of the support portion 41, and screwed into the nut 411b on the back side of the top plate portion 411. At this time, the first fixing member 44 is provided from top to bottom, thereby fixing the base portion 420 to the support portion 41. Note that the heat insulating material 425 of the base portion 420 is appropriately taken in and out, and after fixing the base portion 420 to the support portion 41, the heat insulating material 425 is surely loaded.

[0085] Subsequently, the first heat insulating material 45 is filled around the base portion 420. That is, the first heat insulating material 45 for improving the heat insulation property of the floor portion 40 is filled in the gap between the upper surface of the sealing material 43 and between the floor surface portion 42 and the mobile unit 1, 100 adjacent to the floor surface portion 42. Also, the first heat insulating material 45 is filled in the gaps between both end portions in the length direction of the base portion 420 and the inner sheet portion 31.

[0086] Subsequently, the floor finishing portion 430 is placed on the upper surface of the base portion 420, and the second fixing member 440 is passed through the through hole 432 of the floor finishing portion 430 and the through hole 423a of the upper surface material 423 in the base portion 420, and screwed into the nut 423b on the back side of the upper surface material 423. At this time, the second fixing member 440 is provided from top to bottom, thereby fixing the floor finishing portion 430 to the base portion 420.

[0087] As described above, the first mobile unit 1 and the second mobile unit 100 can be connected by the connection and surrounding means. In this embodiment, only the attachment of the bottom floor portion 23 and the sheet metal cover 24 and the fixing of the angle members of the first holding portion 21 and the second holding portion 22 are performed at the manufacturing stage of the first mobile unit 1 and the second mobile unit 100, but it is not limited thereto. For example, the first inner sheet piece 311 and the first outer sheet piece 321 are held in advance by the first inner holding portion 21A and the first outer holding portion 21B on the first mobile unit 1 side, respectively, and the second inner sheet piece 312 and the second outer sheet piece 322 are held in advance by the second inner holding portion 22A and the second outer holding portion 22B on the second mobile unit 100 side, respectively. Then, the first mobile unit 1 and the second mobile unit 100 may be transported. In that case, at the site, only the connection of the inner sheet portion 31 and the outer sheet portion 32 by the outer waterproof fastener 323 and the inner waterproof fastener 313, the arrangement of the floor portion 40, and the sandwiching operation of the waterproof sheet portion 30 may be performed.

[0088] According to this embodiment, the following excellent effects can be obtained. That is, the connection surrounding means is provided between the adjacent mobile units 1 and 100 to connect the mobile units 1 and 100 to each other, and surrounds the opposing communication ports 14a and 113a to form the passage space 20. Therefore, the adjacent mobile units 1 and 100 can be easily connected and easily divided in a state where they can freely go back and forth between the adjacent mobile units 1 and 100, and a plurality of mobile units 1 and 100 can be maintained in a state where they can move at any time and arbitrarily. Furthermore, since the connection surrounding means has the waterproof sheet portion 30 that covers at least the upper edge portion 20a, the one side edge portion 20b, and the other side edge portion 20c of the passage space 20, the waterproof sheet portion 30 can prevent rainwater from entering the passage space 20 at a position above the floor portion 40. In addition, the connecting and surrounding means is spanned between the adjacent mobile units 1 and 100 without being fixed to the adjacent mobile units 1 and 100, and is disposed at the lower edge of the passage space 20 and has a floor portion 40 that holds the lower ends of both side edges of the waterproof sheet portion 30. Therefore, by this floor portion 40, the adjacent mobile units 1 and 100 can be easily connected along the lower edge 20d of the passage space 20 and can be used for walking. At the same time, the passage space 20 can be surrounded without gaps by the waterproof sheet portion 30 and the floor portion 40 to improve waterproof performance, and the rainproofing at the connecting portion between the adjacent mobile units 1 and 100 can be ensured. Moreover, the floor portion 40 includes a support portion 41 disposed to span between the adjacent mobile units 1 and 100, a floor surface portion 42 that is detachably fixed to the upper surface of the support portion 41 and constitutes the floor surface of the passage space 20, and a first fixing member 44 for fixing the floor surface portion 42 to the support portion 41. The first fixing member 44 is provided from top to bottom from the floor surface portion 42 toward the support portion 41 to fix the floor surface portion 42 to the support portion 41. Therefore, when fixing the floor surface portion 42 to the support portion 41, work can be performed from above. That is, it is possible to perform work for fixing the floor surface portion 42 to the support portion 41 within the passage space 20. Therefore, for example, compared with the case where work is performed from below when fixing the floor surface portion 42 to the support portion 41, it is possible to more easily fix or release the fixing of the floor surface portion 42 to the support portion 41. Thereby, the adjacent mobile units 1 and 100 can be more easily connected and further easily divided in a state where they can freely move back and forth between the adjacent mobile units 1 and 100, and a plurality of mobile units 1 and 100 can be maintained in a state where they can move at any time and arbitrarily.

[0089] Further, the floor surface portion 42 includes a base portion 420 that is placed on the support portion 41 and fixed to the support portion 41 by the first fixing member 44, a floor finishing portion 430 that is detachably fixed to the upper surface of the base portion 420 and constitutes the floor surface of the passage space 20, and a second fixing member 440 for fixing the floor finishing portion 430 to the base portion 420. The second fixing member 440 is provided from top to bottom from the floor finishing portion 430 toward the base portion 420 to fix the floor finishing portion 430 to the base portion 420. Therefore, the work can be performed from above when fixing the floor finishing portion 430 to the base portion 420. That is, since it is possible to perform the work of fixing the floor finishing portion 430 to the base portion 420 within the passage space 20, for example, it is easier to fix or release the fixing of the floor finishing portion 430 to the base portion 420 compared to the case where the work is performed from below when fixing the floor finishing portion 430 to the base portion 420. As a result, the adjacent mobile units 1, 100 can be more easily connected and further easily divided in a state where they can freely move back and forth between the adjacent mobile units 1, 100, and a plurality of mobile units 1, 100 can be maintained in a state where they can move at any time and arbitrarily.

[0090] Further, the support portion 41 includes a bridging portion 400 that spans between adjacent mobile units 1 and 100, and a support portion main body 410 that is placed on and attached to the bridging portion 400, and on which the floor surface portion 42 is fixed by the first fixing member 44 on the upper surface. The support portion main body 410 is configured such that the bridging portion 400 is slidable on the upper surface of the bridging portion 400 along the direction in which the bridging portion 400 spans between adjacent mobile units 1 and 100. Therefore, the position of the support portion main body 410 can be adjusted according to the interval between adjacent mobile units 1 and 100. As a result, the position of the floor surface portion 42 that constitutes the floor surface of the passage space 20 can be arranged at the intermediate portion between adjacent mobile units 1 and 100, thereby improving the ease of walking within the passage space 20. Moreover, since the floor portion 40 including the floor surface portion 42 holds the waterproof sheet portion 30, it is possible to prevent a situation in which the waterproof sheet portion 30 is twisted to one side of either of the adjacent mobile units 1 and 100, and it can contribute to ensuring the rainproofing at the connection portion between adjacent mobile units 1 and 100.

[0091] Also, a sheet-shaped sealing material 43 is sandwiched and provided between the support portion 41 and the floor surface portion 42. Since the sealing material 43 spans between adjacent mobile units 1 and 100, it is possible to protect the portion of the floor portion 40 that is located above the support portion 41 by the sealing material 43. Thereby, it can contribute to ensuring the rainproofing at the portion of the connection portion between adjacent mobile units 1 and 100 that is located above the support portion 41.

[0092] In addition, since the upper surface of the sealing material 43 and the gap between the floor surface portion 42 and the mobile units 1, 100 adjacent to the floor surface portion 42 are filled with the first heat insulating material 45, the heat insulation performance of the floor portion 40 in the passage space 20 can be improved. Further, since the first heat insulating material 45 is filled, the floor surface portion 42 is less likely to shift to either one of the adjacent mobile units 1, 100. Therefore, it is possible to prevent a situation in which the waterproof sheet portion 30 held by the floor portion 40 is twisted to one side of either one of the adjacent mobile units 1, 100, and it is possible to contribute to ensuring the rainproofing at the connection portion between the adjacent mobile units 1, 100.

[0093] In addition, the waterproof sheet portion 30 includes an inner sheet portion 31 located on the side of the communication ports 14a, 114a and an outer sheet portion 32 located outside the inner sheet portion 31. The inner sheet portion 31 and the outer sheet portion 32 are each configured to be separable on the side of the first mobile unit 1 and the side of the second mobile unit 100. Therefore, adjacent mobile units 1, 100 can be easily connected in a state where they can freely move back and forth between the adjacent mobile units 1, 100 and can be easily separated, so that a plurality of mobile units 1, 100 can be maintained in a state where they can move at any time and arbitrarily. Furthermore, since the second heat insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32, the heat insulation performance of the portion located above the floor portion 40 of the passage space 20 can be improved. As a result, it becomes easier to support the comfort of the thermal environment in the internal spaces of the first mobile unit 1 and the second mobile unit 100 adjacent to the passage space 20.

[0094] In recent years, the realization of a decarbonized society through the promotion of carbon neutrality, which aims to substantially reduce carbon dioxide emissions to zero, and the achievement of the SDGs (Sustainable Development Goals) have been demanded. Also in the construction industry, efforts are underway to make buildings wooden structures with low carbon dioxide emissions. Since the unit body of the mobile units 1 and 100 of the present embodiment is mostly composed of wooden panels for construction, it can contribute to the realization of a decarbonized society through carbon-neutral propulsion and the achievement of the SDGs (Goal 7, Goal 12, Goal 13). Furthermore, since the mobile units 1 and 100 of the present embodiment can also be used as temporary housing in the event of a disaster, they can contribute to the achievement of the SDGs (Goal 11).

Explanation of Reference Numerals

[0095] 1 First Mobile Unit 2 Cart 3 Support Base 14 Third Side Wall 14a First Communication Port 15 Fourth Side Wall 100 Second Mobile Unit 113 Second Side Wall 113a Second Communication Port 20 Passage Space 20a Upper Edge Portion 20b One Side Edge Portion 20c The Other Side Edge Portion 20d Lower Edge Portion 21 First Holding Portion 21A First Inner Holding Portion 21B First Outer Holding Portion 22 Second Holding Portion 22A Second Inner Holding Portion 22B Second Outer Holding Portion 23 Lower Floor Portion 24 Sheet Metal Cover 25 Fixing Member 30 Waterproof Sheet Portion 31 Inner Sheet Portion 311 First Inner Sheet Piece 312 Second Inner Sheet Piece 313 Inner Waterproof Fastener 32 Outer Sheet Portion 321 First Outer Sheet Piece 322 Second Outer Sheet Piece 323 Outer Waterproof Fastener 40 Floor Portion 41 Support Department 400 Erection Department 410 Support Department Body 411 Top Panel Department 412 Side Panel Department 413 Placing Board 413a Long Hole 42 Bed Surface Department 420 Base Part 423 Upper Surface Material 423a Through Hole 424 Lower Surface Material 424a Through Hole 424b Recess 430 Bed Finishing Department 440 Second Fixing Material 43 Sealing Material 44 First Fixing Material

Claims

1. A plurality of mobile units are arranged adjacent to each other with their communication ports facing each other, a connecting and surrounding means is provided between adjacent mobile units to connect the mobile units and to surround the communication openings facing each other to form a passage space, The connecting and surrounding means is A waterproof sheet portion covering at least the upper edge, one side edge, and the other side edge of the passage space; a floor section that is not fixed to the adjacent mobile units, is bridged between the adjacent mobile units, is disposed on the lower edge of the passage space, and holds the lower ends of both side edges of the waterproof sheet section; The floor portion is a support portion disposed between adjacent mobile units; a floor surface portion that is detachably fixed to an upper surface of the support portion and that constitutes a floor surface of the passage space; A first fixing member for fixing the floor portion to the support portion, The lower end of the waterproof sheet portion is sandwiched between the support portion and the floor surface portion, A connecting structure for a mobile unit, characterized in that the first fixing material is provided from top to bottom from the floor portion toward the support portion, thereby fixing the floor portion to the support portion.

2. The mobile unit connection structure according to claim 1, The floor surface portion is a base portion placed on the support portion and fixed to the support portion by the first fixing material; A floor finishing part that is detachably fixed to an upper surface of the base part and forms a floor surface of the passage space; and a second fixing member for fixing the floor finishing portion to the base portion, A connecting structure for a mobile unit, characterized in that the second fixing material is provided from top to bottom from the floor finishing portion toward the base portion, thereby fixing the floor finishing portion to the base portion.

3. The mobile unit connection structure according to claim 1, The support portion is a bridge section that bridges between adjacent mobile units; a support body that is placed on and attached to the bridge portion and has an upper surface to which the floor portion is fixed by the first fixing material; A mobile unit connection structure, characterized in that the support body is freely slidable on an upper surface of the bridging part along a direction in which the bridging part is bridged between adjacent mobile units.

4. The mobile unit connection structure according to claim 1, A sheet-shaped sealing material is sandwiched between the support portion and the floor surface portion, A mobile unit connection structure, wherein the sealing material is arranged to bridge between adjacent mobile units.

5. The mobile unit connection structure according to claim 4, A mobile unit connection structure, characterized in that a first insulating material is filled in the gap on the upper surface of the sealing material and between the floor portion and the mobile unit adjacent to the floor portion.

6. The mobile unit connection structure according to claim 1, The adjacent mobile units include a first mobile unit located on one side and a second mobile unit located on the other side, The waterproof sheet portion is An inner sheet portion located on the communication port side; an outer sheet portion located outside the inner sheet portion, the inner sheet portion and the outer sheet portion are configured to be separable toward the first mobile unit side and the second mobile unit side, A mobile unit connection structure, characterized in that a second insulating material is filled between the inner sheet portion and the outer sheet portion.

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