Mobile unit connection structure

Abstract

To minimize adjustment work relating to the connection of mobile units and to facilitate the connection work of mobile units. [Solution] A first mobile unit 1 and a second mobile unit 100 are arranged adjacent to each other with the first communication opening 15a and the second communication opening 113a facing each other, and a floor section 40 is provided spanning between the first communication opening and the second communication opening, and the floor section comprises a first receiving section 41 supported on the wall 15 of the first mobile unit, a second receiving section 42 supported on the wall 113 of the second mobile unit, a floor surface section 45 spanning between the first receiving section and the second receiving section, and a cover section 43 having a finishing plate section 43c arranged above the second receiving section, and one end of the floor surface section is fixed to the first receiving section and the other end is inserted into the gap S between the second receiving section and the finishing plate section.

Description

[Technical Field]

[0001] The present invention relates to a connection structure for a mobile unit. [Background technology]

[0002] Conventionally, mobile units that can be easily relocated or installed have been widely known as container houses, trailer houses, camper vans, etc. Demand for mobile units has been increasing in recent years, as they are permanently installed as residences, stores, and offices, used as temporary accommodations, and even used as temporary housing in the event of natural disasters. Because such mobile units are towed and transported by automobile, they must be sized to fit within legal regulations (such as the Road Transport Vehicle Act), but this poses a problem of limited interior space. Therefore, as disclosed in Patent Documents 1 and 2, for example, multiple mobile units may be connected to each other to allow movement between them in order to expand the interior space.

[0003] The mobile unit connection structures disclosed in Patent Documents 1 and 2 include a connection and enclosure means for forming an aisle space between adjacent mobile units whose communication ports face each other. The connection and enclosure means is composed of a waterproof sheet section covering the upper edge, one side edge, and the other side edge of the aisle space, and a floor section spanning the adjacent mobile units and holding the lower end of the waterproof sheet section. The floor section has a support section spanning the units without being fixed to the mobile units, and a floor surface section detachably fixed to the upper surface of the support section. At the lower edge of the aisle space, both longitudinal ends of the waterproof sheet section are sandwiched between the support section and the floor surface section, and the gap between the mobile units and the floor surface is filled with insulating material. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7569916 [Patent Document 2] Patent No. 7690081 Summary of the Invention [Problem to be solved by the invention]

[0005] In conventional mobile unit connection structures, if the gap between adjacent mobile units is too large, it is impossible to span the floor, so the gap between the mobile units must be adjusted appropriately. However, depending on the site conditions, the gap between the mobile units may be narrower than expected, making it difficult to fill the gap between the mobile units and the floor with insulation, and requiring on-site cutting of the floor finishing material. Furthermore, if adjustment work at the bottom edge of such an aisle space takes time on-site, it is easy to imagine that this could affect the entire mobile unit connection work.

[0006] The present invention has been made in consideration of the above circumstances, and its object is to minimize the adjustment work involved in connecting mobile units together and to make it easier to connect mobile units together. [Means for solving the problem]

[0007] The means for solving the above problems is a mobile unit connection structure, which comprises: a first mobile unit having a first communication port formed in a wall thereof and a second mobile unit having a second communication port formed in a wall thereof are arranged adjacent to each other with the first communication port and the second communication port facing each other; A floor portion is provided between the first communication port and the second communication port, The floor portion is a first receiving portion supported on the wall of the first mobile unit; a second receiving portion supported on the wall of the second mobile unit; a floor portion provided to bridge between the first receiving portion and the second receiving portion; a cover portion detachably attached to the second receiving portion and having a finishing plate portion disposed above the second receiving portion with a space therebetween, The floor portion is characterized in that one end is fixed to the first receiving portion and the other end is inserted into the gap formed between the second receiving portion and the finishing plate portion. [Effects of the Invention]

[0008] According to the present invention, adjustment work relating to the connection of mobile units can be minimized, and the connection work of mobile units can be easily performed. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 10 is a cross-sectional plan view showing two mobile units arranged adjacent to each other. [Figure 2] FIG. 10 is a left side view of the first mobile unit, showing the first access port. [Figure 3] FIG. 10 is a rear end view of the second mobile unit, showing the second communication port. [Figure 4] FIG. 10 is a vertical cross-sectional view showing the upper edge of the connecting and enclosing means that forms the passage space. [Figure 5] FIG. 10 is a cross-sectional plan view showing both side edges of the connecting and enclosing means that form the passage space. [Figure 6] FIG. 2 is a diagram illustrating the configuration of an inner sheet portion in a waterproof sheet portion. [Figure 7] FIG. 2 is a diagram illustrating the configuration of the outer sheet portion of the waterproof sheet portion. [Figure 8] FIG. 4 is a vertical cross-sectional view showing a floor portion in an aisle space. [Figure 9] 10A and 10B are diagrams showing the construction procedure for the floor section in the aisle space. [Figure 10] FIG. 10 is a plan view showing the position of the floor angle members on the floor portion in the aisle space. [Figure 11] FIG. 2 is a plan view showing the floor portion in the aisle space. [Figure 12] FIG. 10 is a perspective view showing the configuration of the floor finishing portion in the passage space. DETAILED DESCRIPTION OF THE INVENTION

[0010] <Disclosure Summary> This specification discloses the following mobile unit coupling structure. The reference numerals described in the summary of this disclosure are referenced in Figs. 1 to 12. These reference numerals are provided to facilitate understanding of the mobile unit coupling structure, and the scope of the present invention is not limited to the examples shown in the drawings.

[0011] (1) First aspect As shown in, for example, FIGS. 1 to 12 , a connection structure of a mobile unit 1, 100 according to one embodiment of the present disclosure includes a first mobile unit 1 having a first communication opening 15a formed in a wall 15 and a second mobile unit 100 having a second communication opening 113a formed in a wall 113, which are arranged adjacent to each other with the first communication opening 15a and the second communication opening 113a facing each other; A floor portion 40 is provided between the first communication port 15a and the second communication port 113a, The floor portion 40 is a first receiving portion 41 supported on the wall 15 of the first mobile unit 1; a second receiving portion 42 supported on the wall 113 of the second mobile unit 100; a floor surface portion 45 provided to bridge between the first receiving portion 41 and the second receiving portion 42; a cover portion 43 that is detachably attached to the second receiving portion 42 and has a finishing plate portion 43c that is arranged above the second receiving portion 42 with a gap therebetween, The floor portion 45 is characterized in that one end is fixed to the first receiving portion 41 and the other end is inserted into the gap S formed between the second receiving portion 42 and the finishing plate portion 43c.

[0012] According to the first aspect, the floor surface portion 45, which is provided to bridge between the first receiving portion 41 supported by the wall 15 of the first mobile unit 1 and the second receiving portion 42 supported by the wall 113 of the second mobile unit 100, has one end fixed to the first receiving portion 41 and the other end inserted into the gap S formed between the second receiving portion 42 and the finishing plate portion 43c, so that the other end of the floor surface portion 45 can flexibly move horizontally within the gap S. Therefore, even if the gap between the first mobile unit 1 and the second mobile unit 100 is wide or narrow, the floor surface portion 45 can bridge the gap while absorbing any error within a range within which it does not come off the first receiving portion 41 and the second receiving portion 42. This minimizes the need for adjustment work related to the connection between the first mobile unit 1 and the second mobile unit 100, facilitating the connection work between the mobile units.

[0013] (2) Second aspect The connection structure of the mobile unit 1,100 according to one embodiment of the present disclosure is characterized in that, in a first embodiment, the floor portion 40 further includes a retaining portion 46 that prevents the one end of the floor surface portion 45 from moving horizontally relative to the first receiving portion 41, as shown in Figures 8 and 9, for example.

[0014] According to the second aspect, the floor section 40 further includes a retaining portion 46 that restricts one end of the floor surface section 45 from moving horizontally relative to the first receiving section 41, and the retaining portion 46 makes it easier to fix the one end of the floor surface section 45 to the first receiving section 41. As a result, even if the gap between the first mobile unit 1 and the second mobile unit 100 is wide or narrow, the floor surface section 45 can easily bridge the first receiving section 41 and the second receiving section 42, absorbing any discrepancy within a range where it does not come off.

[0015] (3) Third aspect The connecting structure of the mobile units 1,100 according to one embodiment of the present disclosure, as shown in Figures 2 to 11, is characterized in that in the first embodiment, it is provided between the adjacent first mobile unit 1 and second mobile unit 100, connecting the first mobile unit 1 and second mobile unit 100 to each other, and further includes a waterproof sheet portion 30 that surrounds the space between the opposing first communication opening 15a and second communication opening 113a and forms an aisle space 20 together with the floor portion 40.

[0016] According to the third aspect, the floor portion 40 can be used as the passage space 20 so that it is possible to walk on it, while the waterproof sheet portion 30 can prevent rainwater from entering the passage space 20.

[0017] (4) Fourth aspect The connecting structure of the mobile unit 1,100 according to one embodiment of the present disclosure is characterized in that, in the third embodiment, as shown in Figures 2 to 11, the waterproof sheet portion 30 covers the upper edge portion 20a, both side edges 20b, 20c, and lower edge portion 20d of the passage space 20.

[0018] According to the fourth aspect, the waterproof sheet portion 30 covers the upper edge portion 20a, both side edges 20b, 20c and lower edge portion 20d of the passage space 20, so that the waterproof sheet portion 30 surrounds the passage space 20 without any gaps, improving waterproofing and ensuring weatherproofing at the connection points between adjacent mobile units 1,100.

[0019] (5) Fifth aspect The connection structure of the mobile unit 1,100 according to one embodiment of the present disclosure, as shown in, for example, FIGS. 2 to 11, in the third or fourth embodiment, is as follows: The wall 15 of the first mobile unit 1 is provided with a first holding portion 21 that holds the end of the waterproof sheet portion 30 on the first mobile unit 1 side, The wall 113 of the second mobile unit 100 is provided with a second holding portion 22 that holds the end of the waterproof sheet portion 30 on the second mobile unit 100 side, The first holding portion 21 is connected to the first receiving portion 41 and supports the first receiving portion 41, The second holding portion 22 is characterized in that the second receiving portion 42 is connected to the second holding portion 22 and supports the second receiving portion 42 .

[0020] According to the fifth aspect, the first holding portion 21 that holds the end portion of the waterproof sheet portion 30 on the side of the first mobile unit 1 is provided on the wall 15 of the first mobile unit 1, and is connected to the first receiving portion 41 to support the first receiving portion 41, so that the first holding portion 21 can hold the end portion of the waterproof sheet portion 30 on the side of the first mobile unit 1 while supporting the first receiving portion 41 and one end portion of the floor portion 45. In addition, the second holding portion 22, which holds the end portion of the waterproof sheet portion 30 on the side of the second mobile unit 100, is provided on the wall 113 of the second mobile unit 100, and is connected to the second receiving portion 42 to support the second receiving portion 42.Therefore, this second holding portion 22 can hold the end portion of the waterproof sheet portion 30 on the side of the second mobile unit 100 while supporting the other end portion of the second receiving portion 42 and the floor portion 45. In other words, the first holding portion 21 and the second holding portion 22 simultaneously have the function of supporting the floor portion 45 and the function of holding the waterproof sheet portion 30, and are therefore highly functional.

[0021] (6) Sixth Aspect As shown in FIGS. 2 to 11, in a fifth embodiment, the connection structure of the mobile unit 1,100 according to an embodiment of the present disclosure is as follows: The waterproof sheet portion 30 is an inner seat portion 31 located on the aisle space 20 side; an outer sheet portion 32 located outside the inner sheet portion 31, The inner sheet portion 31 and the outer sheet portion 32 are configured to be separable between the first mobile unit 1 side and the second mobile unit 100 side, respectively. A heat insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32, The first holding portion 21 is a first inner holding portion 21A that holds an end portion of the inner sheet portion 31 on the first mobile unit 1 side; a first outer holding portion (21B) that holds an end portion of the outer sheet portion (32) on the first mobile unit (1) side, The second holding portion 22 is a second inner holding portion 22A that holds the end portion of the inner sheet portion 31 on the second mobile unit 100 side; a second outer holding portion (22B) that holds the end portion of the outer sheet portion (32) on the second mobile unit (100) side, The first receiving portion 41 is connected to the first inner holding portion 21A of the first holding portion 21, The second receiving portion 42 is connected to the second inner holding portion 22A of the second holding portion 22.

[0022] According to the sixth aspect, the waterproof sheet portion 30 has an inner sheet portion 31 located on the aisle space 20 side and an outer sheet portion 32 located outside the inner sheet portion 31, and the inner sheet portion 31 and the outer sheet portion 32 are configured to be easily separable to the first mobile unit 1 side and the second mobile unit 100 side, respectively, so that the first mobile unit 1 and the second mobile unit 100 can be easily connected and easily separated in a state where they can move freely back and forth between the first mobile unit 1 and the second mobile unit 100, and the first mobile unit 1 and the second mobile unit 100 can be maintained in a state where they can move between each other at any time and as desired. Furthermore, since the insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32, it is possible to improve the thermal insulation properties within the aisle space 20. This makes it easier to maintain a comfortable thermal environment in the internal spaces of the first mobile unit 1 and the second mobile unit 100 adjacent to the aisle space 20. Furthermore, the first receiving portion 41 is connected to the first inner holding portion 21A of the first holding portion 21, which holds the end of the inner sheet portion 31 on the first mobile unit 1 side, and the second receiving portion 42 is connected to the second inner holding portion 22A of the second holding portion 22, which holds the end of the inner sheet portion 31 on the second mobile unit 100 side, so that the first inner holding portion 21A and the second inner holding portion 22A for holding the inner sheet portion 31 located on the aisle space 20 side of the waterproof sheet portion 30 also support the floor portion 45. Therefore, the part of the waterproof sheet portion 30 that holds the inner sheet portion 31 and the part that supports the floor portion 45 are close to each other, so that the waterproof sheet portion 30 can efficiently hold the inner sheet portion 31 and support the floor portion 45.

[0023] (7) Seventh aspect The connection structure of the mobile unit 1,100 according to one embodiment of the present disclosure, as shown in, for example, FIGS. 2 to 11, in the third or fourth embodiment, is as follows: The waterproof sheet portion 30 is an inner seat portion 31 located on the aisle space 20 side; an outer sheet portion 32 located outside the inner sheet portion 31, The inner sheet portion 31 and the outer sheet portion 32 are configured to be separable between the first mobile unit 1 side and the second mobile unit 100 side, respectively. A heat insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32.

[0024] According to the seventh aspect, the waterproof sheet portion 30 has an inner sheet portion 31 located on the aisle space 20 side and an outer sheet portion 32 located outside the inner sheet portion 31, and the inner sheet portion 31 and the outer sheet portion 32 are configured to be easily separable to the first mobile unit 1 side and the second mobile unit 100 side, respectively, so that the first mobile unit 1 and the second mobile unit 100 can be easily connected and easily separated in a state where movement between the first mobile unit 1 and the second mobile unit 100 is free, and the first mobile unit 1 and the second mobile unit 100 can be maintained in a state where they can move between each other at any time and as desired. Furthermore, since the insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32, it is possible to improve the thermal insulation properties within the aisle space 20. This makes it easier to maintain a comfortable thermal environment in the internal spaces of the first mobile unit 1 and the second mobile unit 100 adjacent to the aisle space 20.

[0025] Furthermore, in recent years, there has been a demand for the realization of a carbon-neutral society by promoting carbon neutrality, which reduces carbon dioxide emissions to virtually zero, and for the achievement of the Sustainable Development Goals (SDGs), and in the construction industry, efforts are being made to build buildings using wood, which has low carbon dioxide emissions. Because the mobile unit 1,100 according to one embodiment of the present disclosure is mostly made of architectural wood panels, it can contribute to the realization of a carbon-neutral society by promoting carbon neutrality and the achievement of the SDGs (Goals 7, 12, and 13). Furthermore, the mobile unit 1,100 according to one embodiment of the present disclosure can also be used as temporary housing in the event of a disaster, thereby contributing to the achievement of the SDGs (Goal 11).

[0026] An architectural wood panel is a structure in which vertical and horizontal frame members are assembled into a rectangular shape, and auxiliary beam members are assembled vertically and horizontally inside the rectangular frame to form a frame body, with a surface material such as plywood attached to both sides or one side of the frame body, resulting in a hollow structure. Furthermore, the hollow space is filled with an appropriate insulating material such as glass wool or rock wool, or foam plastic insulating material. Therefore, with the exception of the insulating material filled in the hollow space, most of the panel is made of wood.

[0027] <Embodiment> Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various limitations that are technically preferable 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 the convenience of explanation.

[0028] 1 etc., reference numeral 1,100 denotes a mobile unit. The mobile unit 1,100 of this embodiment is a trailer house, which is placed on a dolly 2 and towed and transported by an automobile (not shown), and is placed in a suitable location while still on the dolly 2.

[0029] Furthermore, the mobile unit 1,100 has passed vehicle inspection and is sized within legal regulations (Building Standards Act, Road Transport Vehicle Act) (Safety Standards Article 2 limits: vehicle width within 2.5 m, vehicle length within 12 m, vehicle height within 3.8 m). This allows the mobile unit 1,100 to be legally moved on public roads. However, with special permission, the mobile unit may be sized larger than the limits. Additionally, the mobile unit 1100 shall meet all criteria required for placement at a fixed location.

[0030] The cart 2 is also called a chassis, and includes a support base 3 to which wheels 3a are attached, and a plurality of support legs (not shown) provided on the support base 3 so as to be detachable. The box-shaped unit body of the mobile unit 1,100 is placed on and integrated with the support base 3. In addition, a connecting portion 3b that protrudes forward and is connected to an automobile is integrally formed at the front end of the support base 3. The support legs are provided at six locations in total: the four corners of the support base 3 and two locations near the wheels 3a (the center of the support base 3 in the longitudinal direction). The support legs are jack devices that can be manually raised and lowered at the locations in contact with the support base 3.

[0031] The mobile units 1,100 are arranged adjacent to each other in a place where they can be placed. In this embodiment, the mobile units 1 are arranged in an L-shape in plan view, with the rear end of one mobile unit 100 (hereinafter, second mobile unit 100) abutting against the left side surface of the front end of the other mobile unit 1 (hereinafter, first mobile unit 1). However, strictly speaking, a small gap is formed between these mobile units 1,100. The width of the gap is set to, for example, about 100 to 300 mm. Furthermore, 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 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. Moreover, such mobile units 1,100 are arranged in a state where the communication ports 15a and 113a formed on the opposing side surfaces face each other directly (in a parallel positional relationship, facing each other directly in front).

[0032] Furthermore, at least one of the mobile units 1, 100 has an entrance 115a different from the communication openings 15a, 113a. In this embodiment, as shown in Figures 1 and 2, the entrance 115a is formed in the fourth side wall 115 of the second mobile unit 100. An entrance door 115b is provided at the entrance 115a, and this entrance 115a can be used as an entrance.

[0033] [Mobile unit configuration] Next, the configuration of the mobile unit 1100 will be described in detail. The mobile unit 1,100 of this embodiment, which is a trailer house, is configured to include a dolly 2, and the box-shaped unit main body placed on the support base 3 of the dolly 2 will be described below. In this embodiment, the mobile unit 1 located on the left side in FIG. 1 is referred to as the first mobile unit 1, and the mobile unit 100 located on the right side is referred to as the second mobile unit 100.

[0034] As shown in Figures 4, 5, etc., the unit bodies of the first mobile unit 1 and the second mobile unit 100 are formed in a box shape, with their outer shells consisting of floors 10, 110 that are placed on a support base 3 via a base frame 4 and integrated with each other, a roof 11, 111, and four side walls 12-15, 112-115 that are provided between the floors 10, 110 and the roof 11, 111. Such a unit body is formed into a rectangular parallelepiped shape that is long in one direction (front-rear direction) and short in the other direction (left-right direction) in a plan view. Of the first mobile unit 1 and second mobile unit 100 arranged on the L side in a plan view, the first mobile unit 1 is arranged so that it is long in the north-south direction and short in the east-west direction in a plan view. The second mobile unit 100 is arranged so that it is long in the east-west direction and short in the north-south direction in a plan view.

[0035] The base frame 4 is formed in a rectangular frame shape and is provided between the first mobile unit 1 and the support base 3, and between the second mobile unit 100 and the support base 3, connecting each mobile unit 1, 100 to the support base 3.

[0036] The floors 10, 110 are long in one direction (front-to-back) and short in the other direction (left-to-right), forming a rectangle in plan view, and constitute the entire surface of the floors 10, 110 in the space within the first mobile unit 1 and the second mobile unit 100. The floor bodies of the floors 10 and 110 are made of hollow architectural wood panels. A floor finishing material (for example, flooring material) is provided on the upper surface of the floor body, and the hollow interior is filled with a heat insulating material.

[0037] The roof 11 of the first mobile unit 1 is a shed roof that is higher on the side (east side) of the adjacent second mobile unit 100 and lower on the opposite side (west side). The roof 111 of the second mobile unit 100 is a single-pitch roof that is higher on the north side and lower on the south side in a direction parallel to the length direction of the adjacent first mobile unit 1. 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, the adjacent mobile unit 1,1100 is not arranged in the roof flow direction, which is preferable because rainwater flowing on the roof 11,111 does not flow toward the adjacent mobile unit 1,1100. The roof body of the roofs 11, 111 is made of hollow architectural wood panels. A roofing material (e.g., Galvalume Steel Roofing (registered trademark)) is provided on the surface of the roof body, and the hollow space is filled with a heat insulating material. Additionally, ceiling materials (for example, decorative ceiling panels) are attached to the underside of the roof body. Because the roofs 11, 111 are shed roofs, the ceiling appears to be a sloped ceiling when viewed from inside the unit body. However, this is not limited to this, and a horizontal ceiling made of rafters, ceiling materials, etc. may also be formed below the roof body.

[0038] The first mobile unit 1 has four side walls, namely, 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 on one end side (front end side / south side) of the floor 10 in the length direction. The second side wall 13 is provided on the other end side (rear end side / north side) of the floor 10 in the length direction. The third side wall 14 is provided between the other end (left end, west side) of the first side wall 12 in the width direction and the other end (left end, west side) of the second side wall 13 in the width direction. The fourth side wall 15 is provided between one end (right end, east side) of the first side wall 12 in the width direction and one end (right end, east side) of the second side wall 13 in the width direction. 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-to-back direction). The four side walls 12 to 15 are made of hollow wooden architectural panels. Exterior wall materials (e.g., galvalume steel exterior walls or siding) are provided on the outdoor side of the wall body, and interior wall materials (e.g., gypsum board) and wall finishing materials (e.g., wallpaper) are provided on the indoor side, and the hollow interior is filled with heat insulating material.

[0039] Of the four side walls 12 to 15 of the first mobile unit 1, the fourth side wall 15 located on the second mobile unit 100 side has a first communication opening 15a, which is an opening for people to pass through, formed on the front end side (south side). A door frame for opening and closing the first communication opening 15a and a first door 15b are provided on the fourth side wall 15. The first door 15b is a single-wing door that opens inward toward the internal space of the first mobile unit 1. An adjustment member 10a is provided on the end face of the floor 10 on the side of the first communication opening 15a, on which the door frame of the first door 15b is placed and fixed.

[0040] The second mobile unit 100 has four side walls, namely, 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 / east side) of the floor 110 in the length direction. The second side wall 113 is provided on the other end side (rear end side / west side) of the floor 110 in the length direction. The third side wall 114 is provided between one widthwise end (left end, south side) of the first side wall 112 and one widthwise end (left end, south side) of the second side wall 113 . The fourth side wall 115 is provided between the other end (right end, north side) of the first side wall 112 in the width direction and the other end (right end, north side) of the second side wall 113 in the width direction. As described above, the positional relationship between the four side walls 112 to 115 of the second mobile unit 100 is not symmetrical to the positional relationship between the four side walls 12 to 15 of the first mobile unit 1.

[0041] The four side walls 112 to 115 are made of hollow wooden architectural panels. An exterior wall material (e.g., galvalume steel exterior wall or siding material) is provided on the outdoor side of the wall body, and an interior wall material (e.g., gypsum board) and a wall finishing material (e.g., wallpaper) are provided on the indoor side, and the hollow interior is filled with heat insulating material.

[0042] Of the four side walls 112 to 115 of the second mobile unit 100, the second side wall 113 located on the first mobile unit 1 side is formed with a second communication opening 113a, which is an opening for people to pass through. A door frame for opening and closing the second communication opening 113a and a second door 113b are provided on the second side wall 113. The second door 113b is a single-wing door that opens inward toward the internal space of the second mobile unit 100. An adjustment member 110a is provided on the end face of the floor 110 on the second communication opening 113a side, on which the door frame of the second door 113b is placed and fixed.

[0043] As described above, the fourth side wall 115 of the second mobile unit 100 is formed with a doorway 115a, which is an opening for people to pass through. This doorway 115a faces not toward the first mobile unit 1 but toward the outdoor space. Therefore, this doorway 115a functions as an entrance door for the second mobile unit 100. Furthermore, the fourth side wall 115 is provided with an entrance door 115b, which is a door for opening and closing the doorway 115a. This allows people to enter and exit between the interior space of the second mobile unit 100 and the outdoor space through the doorway 115a.

[0044] The unit body of the second mobile unit 100 is placed at a certain height by the dolly 2, which also raises the height position of the entrance 115a. For this reason, a deck 120 having stairs 121 is installed on the outdoor side of the entrance 115a without being fixed to the second mobile unit 100. That is, the floor surface of the deck 120 is set at a height that makes it easy to enter and exit through the entrance 115a in the second mobile unit 100. For example, the floor surface of the deck 120 is located several centimeters below the lower edge of the entrance 115a. Furthermore, the deck 120 may have other lifting facilities such as a ramp, a wheelchair lift, etc. instead of the stairs 121. If the deck 120 itself is designed to be wheelchair accessible, the height of the floor surface of the deck 120 itself should be increased or a ramp that eliminates the step should be provided on the floor surface of the deck 120 so that there is no step between the deck 120 and the entrance / exit 115a.

[0045] The first mobile unit 1 and second mobile unit 100 configured as described above are adjacent to each other in a place where they can be placed, and are arranged with the communication openings 15a, 113a formed in the opposing side walls 15, 113 facing each other directly (in a parallel positional relationship and facing directly front). The first communication opening 15a is formed on the front end side of the fourth side wall 15 that forms the left side surface of the first mobile unit 1, and the second communication opening 113a is formed in the second side wall 113 that forms the rear end surface of the second mobile unit 100. Therefore, when the first mobile unit 1 and the second mobile unit 100 are lined up so that the communication openings 15a, 113a face each other directly, the first mobile unit 1 and the second mobile unit 100 are arranged to form an L-shape or a substantially L-shape in a plan view.

[0046] [Regarding connecting and surrounding means] Next, the connecting and surrounding means for connecting adjacent mobile units 1,100 to each other and forming the passage space 20 will be described.

[0047] As shown in Figures 3 to 12, the connecting and surrounding means is provided between adjacent mobile units 1,100 to connect the mobile units 1,100 to each other, and also surrounds the space between the first communication opening 15a on the opposing first mobile unit 1 side and the second communication opening 113a on the opposing second mobile unit 100 side to form an aisle space 20. In other words, the space enclosed by the connecting and enclosing means serves as a passage space 20 for movement between the first mobile unit 1 and the second mobile unit 100.

[0048] The passage space 20 has an upper edge 20a, one side edge 20b, another side edge 20c, and a lower edge 20d defined by the connecting enclosing means. The upper edge portion 20a refers to a portion located above the first communication opening 15a and the second communication opening 113a, and is formed in a mountain shape. The one side edge 20b refers to a linear portion located between the south end of the upper edge 20a and the south end of the lower edge 20d. The other side edge 20c refers to a linear portion located between the north end of the upper edge 20a and the north end of the lower edge 20d. The lower edge 20d refers to a linear portion located between the lower end of the one side edge 20b and the lower end of the other side edge 20c.

[0049] The connecting and enclosing means that defines such an aisle space 20 comprises a waterproof sheet portion 30 and a floor portion 40, and further comprises a first retaining portion 21 and a second retaining portion 22 as means for holding the waterproof sheet portion 30.

[0050] (Waterproof sheet part) The waterproof sheet portion 30 of this embodiment has an inner sheet portion 31 located on the communication openings 15a, 113a side, and an outer sheet portion 32 located outside the inner sheet portion 31. Therefore, the first retaining portion 21 and the second retaining portion 22 that hold the waterproof sheet portion 30 also have retaining portions 21A, 22A (first inner retaining portion 21A, second inner retaining portion 22A) located on the inside, and retaining portions 21B, 22B (first outer retaining portion 21B, second outer retaining portion 22B) located on the outside, respectively.

[0051] The inner sheet portion 31 of the waterproof sheet portion 30 comprises a first inner sheet piece 311 located on the first mobile unit 1 side, a second inner sheet piece 312 located on the second mobile unit 100 side, and an inner waterproof zipper 313 connecting the first inner sheet piece 311 and the second inner sheet piece 312. The inner sheet portion 31 is disposed so as to completely surround the passage space 20, from the lower edge 20d of the passage space 20, passing through the one side edge 20b (the other side edge 20c), the upper edge 20a, the other side edge 20c (the one side edge 20b), and returning to the lower edge 20d. In other words, the inner sheet portion 31 is set to a length that enables it to completely surround the passage space 20, and further, both longitudinal ends of the inner sheet portion 31 overlap at the lower edge 20d of the passage space 20, thereby improving watertightness. For this reason, a first hook-and-loop fastener 314 and a second hook-and-loop fastener 315 are provided on the outer and inner surfaces of both longitudinal ends of the inner sheet portion 31, as shown in FIG. 6.

[0052] The first surface fastener 314 and the second surface fastener 315 have first fastener pieces 314a and 315a, and second fastener pieces 314b and 315b that engage with the first fastener pieces 314a and 315a, respectively. Either of the first fastener pieces 314a, 315a and the second fastener pieces 314b, 315b may be a male surface (hook) or a female surface (loop). Also, a hook-and-loop fastener with no distinction between male and female surfaces may be used.

[0053] The first fastener pieces 314a, 315a are provided at one end of the inner sheet portion 31 that completely surrounds the aisle space 20, on the side that is the starting point (▲ in FIG. 3) of the lower edge portion 20d of the aisle space 20. The first fastener pieces 314a, 315a are spaced apart from each other and attached to the aisle space 20 side (inside). On the other hand, the second zipper pieces 314b, 315b are provided on the other end of the inner sheet portion 31 that completely surrounds the aisle space 20, on the side that corresponds to the end point (▼ in FIG. 3) of the lower edge portion 20d of the aisle space 20. The second zipper pieces 314b, 315b are spaced apart from each other and attached on the opposite side (outside) of the aisle space 20. As a result, when the inner sheet portion 31 is arranged to completely surround the passage space 20, the other end portion covers the one end portion of the inner sheet portion 31. At the same time, the second fastener pieces 314b and 315b engage with the first fastener pieces 314a and 315a, respectively. That is, the second fastener piece 314b of the first hook-and-loop fastener 314 covers and engages with the first fastener piece 314a, and the second fastener piece 315b of the second hook-and-loop fastener 315 covers and engages with the first fastener piece 315a, resulting in a state in which the passage space 20 is completely surrounded by the inner sheet portion 31 with no gaps.

[0054] The second zipper pieces 314b, 315b are formed wider than the first zipper pieces 314a, 315a, which is preferable because it allows them to reliably engage with the first zipper pieces 314a, 315a even if there is some misalignment.

[0055] The outer sheet portion 32 of the waterproof sheet portion 30 comprises a first outer sheet piece 321 located on the first mobile unit 1 side, a second outer sheet piece 322 located on the second mobile unit 100 side, an outer waterproof zipper 323 connecting the first outer sheet piece 321 and the second outer sheet piece 322, and a zipper cover 326. Similarly, the outer sheet portion 32 is disposed so as to surround the entire passage space 20, from the lower edge 20d of the passage space 20, passing through the one side edge 20b (the other side edge 20c), the upper edge 20a, the other side edge 20c (the one side edge 20b), and returning to the lower edge 20d. In other words, the outer sheet portion 32 is set to a length that enables it to surround the entire passage space 20 further outboard than the inner sheet portion 31, and further, both longitudinal ends of the outer sheet portion 32 overlap at the lower edge 20d of the passage space 20, thereby improving watertightness. For this reason, a first hook-and-loop fastener 324 and a second hook-and-loop fastener 325 are provided on the outer and inner surfaces of both longitudinal ends of the outer sheet portion 32, as shown in FIG. 7.

[0056] The first surface fastener 324 and the second surface fastener 325 have first fastener pieces 324a and 325a, and second fastener pieces 324b and 325b that engage with the first fastener pieces 324a and 325a, respectively. Either of the first fastener pieces 324a, 325a and the second fastener pieces 324b, 325b may be a male surface (hook) or a female surface (loop). Also, a hook-and-loop fastener with a mixed hook and loop configuration, in which there is no distinction between male and female surfaces, may be used.

[0057] The first fastener pieces 324a, 325a are provided at one end of the outer sheet portion 32 that completely surrounds the aisle space 20, on the side that is the starting point (▲ in FIG. 3) of the lower edge portion 20d of the aisle space 20. The first fastener pieces 324a, 325a are spaced apart from each other and attached to the aisle space 20 side (inside). On the other hand, the second fastener pieces 324b, 325b are provided on the other end of the outer sheet portion 32 that completely surrounds the aisle space 20, on the side that corresponds to the end point (▼ in FIG. 3) of the lower edge portion 20d of the aisle space 20. The second fastener pieces 324b, 325b are spaced apart from each other and attached on the opposite side (outside) of the aisle space 20. As a result, when the outer sheet portion 32 is arranged to completely surround the aisle space 20, the other end portion covers the one end portion of the outer sheet portion 32. At the same time, the second fastener pieces 324b and 325b engage with the first fastener pieces 324a and 325a, respectively. That is, the second fastener piece 324b of the first hook-and-loop fastener 324 covers and engages with the first fastener piece 324a, and the second fastener piece 325b of the second hook-and-loop fastener 325 covers and engages with the first fastener piece 325a, resulting in the aisle space 20 being completely surrounded by the outer sheet portion 32 without any gaps. That is, the aisle space 20 is doubly surrounded by the inner sheet portion 31 and the outer sheet portion 32 without any gaps.

[0058] The second zipper pieces 324b, 325b are formed wider than the first zipper pieces 324a, 325a, which is preferable because it allows them to reliably engage with the first zipper pieces 324a, 325a even if there is some misalignment.

[0059] 7, the zipper cover 326 is a cover member that covers the outer waterproof zipper 323. One side edge of such a zipper cover 326 is fastened to the outer surface of one of the first outer sheet piece 321 and the second outer sheet piece 322 (the second outer sheet piece 322 in this embodiment), and the other side edge is detachably attached to the outer surface of the other of the first outer sheet piece 321 and the second outer sheet piece 322 (the first outer sheet piece 321 in this embodiment) by a hook-and-loop fastener. The hook-and-loop fastener has a first fastener piece provided on the other side edge of the fastener cover 326, and a second fastener piece provided on the other outer surface of the first outer sheet piece 321 and the second outer sheet piece 322. The zipper cover 326 may be set to the same length as the outer sheet portion 32, but is not limited to this, and may be provided in a portion of the outer sheet portion 32 corresponding to the upper edge portion 20a of the aisle space 20. Alternatively, the zipper cover 326 may be provided in a portion of the outer sheet portion 32 excluding the portion corresponding to the lower edge portion 20d of the aisle space 20.

[0060] 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 zipper 313 and the outer waterproof zipper 323 each have a first tape portion, a second tape portion, a first element portion, a second element portion, and a slider portion. The first tape portion is welded to the sheet pieces 311, 321 (first inner sheet piece 311, first outer sheet piece 321) on the first mobile unit 1 side, and is waterproof. The second tape portion is welded to the sheet pieces 312, 322 (the second inner sheet piece 312 and the second outer sheet piece 322) on the second mobile unit 100 side, and is waterproof. The first element portion is provided on an edge of the first tape portion and has a coupling head portion. The second element portion is provided on the edge of the second tape portion and has a coupling head portion. The slider portion can engage and disengage the first element portion and the second element portion. The slider portion is attached to either the sheet pieces 311, 321 on the first mobile unit 1 side or the sheet pieces 312, 322 on the second mobile unit 100 side. The slider portion is disposed on the aisle space 20 side so that the sheet pieces 311, 321 on the first mobile unit 1 side and the sheet pieces 312, 322 on the second mobile unit 100 side can be connected and disconnected from the aisle space 20 side. The first element portion and the second element portion are shaped to exhibit waterproof performance when they are engaged and connected to each other by the slider portion.

[0061] In addition, the sheet pieces 311, 321 (first inner sheet piece 311, first outer sheet piece 321) on the first mobile unit 1 side are provided with a strip-shaped watertight material 33 arranged along the front and back of the edge (base end) on the side held by the first holding portion 21 (first inner holding portion 21A, first outer holding portion 21B), and a plurality of eyelet portions 34 that form through holes into which the fixing member 25 (bolt) is inserted. The watertight material 33 is, for example, Eptsealer. The multiple eyelets 34 are provided so as to border through holes that penetrate the sheet pieces 311, 321 on the first mobile unit 1 side and the front and back watertight materials 33. The multiple eyelets 34 are arranged at predetermined intervals along the edges of the sheet pieces 311, 321 on the first mobile unit 1 side.

[0062] Similarly, the sheet pieces 312, 322 (second inner sheet piece 312, second outer sheet piece 322) on the second mobile unit 100 side also have a strip-shaped watertight material 33 arranged along the front and back of the edge portion of the side held by the second holding portion 22 (second inner holding portion 22A, second outer holding portion 22B), and a plurality of eyelet portions 34 that form through holes into which the fixing member 25 (bolt) is inserted.

[0063] (First holding part) The first retaining portion 21 of this embodiment holds the inner sheet portion 31 (first inner sheet piece 311) and the outer sheet portion 32 (first outer sheet piece 321) provided on the first mobile unit 1 side, and is equipped with a first inner retaining portion 21A, a first outer retaining portion 21B, a base plate portion 23, a sheet metal cover 24, and a fixing member 25.

[0064] The base plate 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 fourth side wall 15 of the first mobile unit 1 along the peripheral portion (upper edge, both side edges and lower edge) of the first connecting opening 15a formed in the fourth side wall 15. The base plate portion 23 of this embodiment is formed by stacking multiple plate materials. The plate materials have the same length but different widths, so that a slit 23a is formed along the length. The slit 23a opens upward at the upper edge 20a of the passage space 20, opens laterally at both side edges 20b and 20c of the passage space 20, and opens downward at the lower edge 20d of the passage space 20. Of the multiple plate members constituting the base plate portion 23, the plate member located closer to the first mobile unit 1 than the slit 23a is pre-fixed to the first mobile unit 1 side (fourth side wall 15, base frame 4, and adjustment member 10a) with screws or the like. Also, of the first outer retaining portion 21B described below, a second angle member that is attached by being inserted into the slit 23a is also pre-fixed to the first mobile unit 1 side (fourth side wall 15, base frame 4, and adjustment member 10a) with screws or the like. Then, of the multiple plate members constituting the base plate portion 23, the plate member located closer to the aisle space 20 than the slit 23a is later covered and fixed, resulting in the formation of the slit 23a.

[0065] The sheet metal cover 24 is a thin metal plate that covers the base plate portion 23, and covers the base plate portion 23 provided on the upper edge and both side edges of the first communication opening 15a, but does not cover the base plate portion 23 provided on the lower edge. At the upper edge and both side edges of the first communication opening 15a, the first inner retaining portion 21A and the first outer retaining portion 21B are fixed to the base plate portion 23 with screws or the like via the sheet metal cover 24, and at the lower edge of the first communication opening 15a, the first inner retaining portion 21A and the first outer retaining portion 21B are fixed to the base plate portion 23 with screws or the like.

[0066] The first inner retaining 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 a base plate portion 23 attached to the fourth side wall 15 of the first mobile unit 1. The first inner holding portion 21A has different configurations at the upper edge 20a and both side edges 20b, 20c of the passage space 20 and at the lower edge 20d of the passage space 20. That is, the first inner retaining portion 21A provided on the upper edge portion 20a and both side edge portions 20b, 20c of the passage space 20 has a pair of angle members, which are metal fittings with an L-shaped cross section. This pair of angle members consists of an angle member located on the inside and an angle member located on the outside, and are arranged side by side so as to form a roughly T-shape in cross section. On the other hand, the first inner retaining portion 21A provided at the lower edge portion 20d of the passage space 20 has an outer angle member 210 which is a metal piece with an L-shaped cross section, and a floor angle member 211 which is a metal piece with an approximately U-shaped cross section.

[0067] Each angle member constituting the first inner holding portion 21A is made into a plurality of parts so that the fixing work can be divided into a plurality of steps. 3, the passage space 20 of this embodiment has an upper edge 20a formed in a mountain shape, and one side edge 20b, the other side edge 20c, and a lower edge 20d formed in a straight line. The parts of the angle member that define the shape of this passage space 20 include left and right straight line parts that form the mountain-shaped upper edge 20a, a straight line part that forms the one side edge 20b, a straight line part that forms the other side edge 20c, and a straight line part that forms the lower edge 20d.

[0068] A pair of angle members for the upper edge portion 20a and both side edge portions 20b, 20c have one side forming an L-shape which is a fixed piece fixed to the base plate portion 23, and the other side forming the L-shape which is a holding piece for holding the first inner sheet piece 311. The fixing piece has through holes formed at predetermined intervals, through which fixing members such as screws for fixing the angle member to the base plate portion 23 are passed. Furthermore, the holding piece has through holes formed therein that match the positions of the multiple eyelets 34 (through holes) in the first inner sheet piece 311, so that the fixing member 25 can be passed through. In other words, the base end portion (the edge portion on the side where the watertight material 33 and the eyelet portion 34 are located) of the first inner sheet piece 311 is sandwiched between the holding pieces of the pair of angle members and can be fixed with the fixing member 25.

[0069] The outer angle member 210 of the first inner holding portion 21A for the lower edge portion 20d is configured in the same manner as the pair of angle members for the upper edge portion 20a and both side edges 20b, 20c. That is, the outer angle member 210 has an L-shaped portion on one side which serves as a fixing piece that is fixed to the base plate portion 23, and a holding piece on the other side which serves as an L-shaped portion that holds the first inner sheet piece 311. On the other hand, the floor angle member 211 is provided with a fixing piece 212 fixed to the base board portion 23, a holding piece 213 for holding the first inner sheet piece 311, and a support piece 214 for supporting the floor portion 40. The holding piece 213 and the support piece 214 are arranged parallel to each other, with the holding piece 213 located on the outside (the outer angle member 210 side) and the support piece 214 located on the inside (the aisle space 20 side). The end of the holding piece 213 on the side of the fixed piece 212 is formed integrally with the fixed piece 212, and the end of the support piece 214 on the side of the fixed piece 212 is formed integrally with the fixed piece 212. The end of the support piece 214 opposite to the fixed piece 212 protrudes further than the end of the holding piece 213 opposite to the fixed piece 212. In other words, it protrudes further toward the second mobile unit 100. The holding piece 213 has through holes formed therein that match the positions of the multiple eyelets 34 (through holes) in the first inner sheet piece 311, so that the fixing member 25 can be passed through. Furthermore, the support piece 214 is formed with a plurality of through holes for passing through the connecting members 44 that protrude from a part of the floor portion 40, as will be described later (FIG. 10).

[0070] The fixing member 25 comprises a pair of angle members, a bolt inserted into a through hole (grommet portion 34) in the first inner sheet piece 311, a nut into which the tip of the bolt's shaft is screwed, and a washer provided between each of the bolt and nut and the pair of angle members.

[0071] 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 a base plate portion 23 attached to the fourth side wall 15 of the first mobile unit 1. Such a first outer retaining portion 21B has a first angle member that is attached to the surface of the base plate portion 23, and a second angle member that is attached by being inserted into a slit 23a formed in the outer end portion of the base plate portion 23. These angle members have one side forming an L-shape that serves as a fixed piece that is fixed to the base plate portion 23 or the fourth side wall 15, and the other side forming the L-shape that serves as a holding piece for holding the first outer sheet piece 321. The fixing piece has through holes formed at predetermined intervals, through which fixing members such as screws for fixing the angle member to the base plate portion 23 are passed. The retaining pieces have through holes formed therein that match the positions of the multiple eyelets 34 (through holes) in the first outer sheet piece 321, allowing the fixing member 25 to pass through. In other words, the base end portion of the first outer sheet piece 321 (the edge portion on the side where the watertight material 33 and the eyelets 34 are located) is sandwiched between the retaining pieces of these angle members, and can be fixed with the fixing member 25.

[0072] Like the pair of angle members in the first inner holding portion 21A, the angle members of the first outer holding portion 21B are also made into a plurality of parts so that the fixing operation can be divided into a plurality of steps. The fixing member 25 used to fix the first outer sheet piece 321 also includes a bolt, a nut, and a washer. The bolts of the fixing members 25 located on the outside are passed through the through holes formed in the second angle members and are pre-welded as shown in Fig. 3. Therefore, the tip of the bolt of the fixing member 25 faces the passage space 20, and the head is positioned on the outdoor side. That is, the first retaining portion 21 includes a first inner retaining portion 21A that holds the first inner sheet piece 311, which is the inner sheet portion 31, and a first outer retaining portion 21B that holds the first outer sheet piece 321, which is the outer sheet portion 32. In the first inner retaining portion 21A, the bolts of the fixing member 25 used to hold the first inner sheet piece 311 are not fixed to the angle members. On the other hand, in the first outer retaining portion 21B, the bolts of the fixing member 25 used to hold the first outer sheet piece 321 are welded and fixed to the angle member (second angle member) located on the outside.

[0073] (Second holding part) The second retaining portion 22 in this embodiment holds the inner sheet portion 31 (second inner sheet piece 312) and the outer sheet portion 32 (second outer sheet piece 322) provided on the second mobile unit 100 side, and is equipped with a second inner retaining portion 22A, a second outer retaining portion 22B, a base plate portion 23, a sheet metal cover 24, and a fixing member 25. The configuration of the second holding portion 22 is substantially the same as the configuration of the first holding portion 21, and most of the components are arranged in a symmetrical positional relationship, so the description will be omitted or simplified.

[0074] The base plate portion 23 and the sheet metal cover 24 are attached to the second side wall 113 of the second mobile unit 100 along the upper edge and both side edges of the second communication opening 113a formed in the second side wall 113. The sheet metal cover 24 covers the base plate portion 23. On the lower edge, only the base plate portion 23 is provided, and the sheet metal cover 24 is not provided. The base plate portion 23 and the sheet metal cover 24 on the second mobile unit 100 side are provided symmetrically to the base plate portion 23 and the sheet metal cover 24 on the first mobile unit 1 side.

[0075] The second inner retaining portion 22A holds the second inner sheet piece 312, which is the inner sheet portion 31 on the second mobile unit 100 side, and is fixed to a base plate portion 23 attached to the second side wall 113 of the second mobile unit 100. The second inner holding portion 22A has a configuration symmetrical to the first inner holding portion 21A provided on the first mobile unit 1 side. Each angle member constituting the second inner holding portion 22A is divided into multiple parts so that the fixing operation can be divided into multiple steps. That is, each angle member has left and right straight parts constituting the upper edge 20a, a straight part constituting one side edge 20b, a straight part constituting the other side edge 20c, and a straight part constituting the lower edge 20d.

[0076] The second inner retaining portion 22A provided on the upper edge 20a and both side edges 20b, 20c of the passage space 20 has a pair of angle members, which are metal fittings with an L-shaped cross section. This pair of angle members consists of an angle member located on the inside and an angle member located on the outside, and are arranged side by side so as to form a roughly T-shape in cross section. The second inner sheet piece 312 is sandwiched between the holding pieces of the pair of angle members and can be fixed with a fixing member 25 having a non-welded bolt.

[0077] On the other hand, the second inner retaining portion 22A provided at the lower edge portion 20d of the passage space 20 has an outer angle member 220 which is a metal piece with an L-shaped cross section, and a floor angle member 221 which is a metal piece with an approximately U-shaped cross section. The floor angle member 221 comprises a fixing piece 222 fixed to the base board portion 23, a holding piece 223 for holding the second inner sheet piece 321, and a support piece 224 for supporting the floor portion 40. The holding piece 223 and the support piece 224 are arranged parallel to each other, with the holding piece 223 located on the outside (the outer angle member 220 side) and the support piece 224 located on the inside (the aisle space 20 side). The end of the holding piece 223 on the side of the fixed piece 222 is integrally formed with the fixed piece 222, and the end of the support piece 224 on the side of the fixed piece 222 is integrally formed with the fixed piece 222. The end of the support piece 224 opposite to the fixed piece 222 protrudes further than the end of the holding piece 223 opposite to the fixed piece 222. In other words, it protrudes further toward the second mobile unit 100. The holding piece 223 has through holes formed therein that match the positions of the multiple eyelets 34 (through holes) in the second inner sheet piece 321, so that the fixing member 25 can be passed through. Furthermore, the support piece 224 has a plurality of through holes formed therein for passing through the connecting members 44 that protrude from a part of the floor portion 40, as will be described later (FIG. 10). The second inner sheet piece 312 is sandwiched between the retaining piece of the outer angle member 220 and the retaining piece 223 of the floor angle member 221, and can be fixed with a fixing member 25 having a non-welded bolt.

[0078] Like the first inner holding portion 21A, each angle member constituting the second inner holding portion 22A is made into a plurality of parts so that the fixing operation can be divided into a plurality of steps.

[0079] The second outer holding portion 22B holds the second outer sheet piece 322, which is the outer sheet portion 32 on the second mobile unit 100 side, and is fixed to a base plate portion 23 attached to the second side wall 113 of the second mobile unit 100. Such second outer holding portion 22B has a configuration symmetrical to the first outer holding portion 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 base plate portion 23, and a second angle member attached so as to be inserted into the slit 23a of the base plate portion 23, and is configured so that the second outer sheet piece 322 can be sandwiched between the holding pieces of these angle members and fixed with the fixing member 25.

[0080] Like the pair of angle members in the second inner holding portion 22A, the angle members of the second outer holding portion 22B are also made into a plurality of parts so that the fixing operation can be divided into a plurality of steps. The fixing member 25 used to fix the second outer sheet piece 322 also includes a bolt, a nut, and a washer. The bolts of the fixing members 25 located on the outside are passed through the through holes formed in the second angle members and are welded in advance, so that the tips of the bolts of the fixing members 25 are directed toward the passage space 20, and the heads are positioned on the outdoor side.

[0081] The passage space 20 is defined by the connecting and surrounding means configured as described above. That is, the inner sheet portion 31 and the outer sheet portion 32 of the waterproof sheet portion 30 are provided between adjacent mobile units 1, 100, with their edges on the first mobile unit 1 side held by the first holding portion 21 (first inner holding portion 21A, first outer holding portion 21B) and their edges on the second mobile unit 100 side held by the second holding portion 22 (second inner holding portion 22A, second outer holding portion 22B). In particular, the inner sheet portion 31 and the outer sheet portion 32 are set to a length that allows them to completely surround the passage space 20, and further, both longitudinal ends thereof overlap at the lower edge portion 20d of the passage space 20. Furthermore, the first inner sheet piece 311 and the second inner sheet piece 312 of the inner sheet portion 31 are connected by an inner waterproof zipper 313. Furthermore, the first outer sheet piece 321 and the second outer sheet piece 322 of the outer sheet portion 32 are connected by an outer waterproof fastener 323. In other words, the inner sheet portion 31 and the outer sheet portion 32 cover the entire periphery of the aisle space 20. A heat insulating material 35 such as glass wool is filled between the inner sheet portion 31 and the outer sheet portion 32.

[0082] (floor) Next, the floor portion 40 of this embodiment will be described. The floor section 40 of this embodiment is bridged between adjacent mobile units 1, 100 and is disposed at the lower edge 20d of the passage space 20. As shown in Figures 8 to 12, this floor section 40 includes a first receiving portion 41 provided on the first mobile unit 1 side, a second receiving portion 42 provided on the second mobile unit 100 side, a cover portion 43 provided in combination with the second receiving portion 42, a connecting member 44 for connecting the first receiving portion 41 and the second receiving portion 42 to the support pieces 214, 224, respectively, a floor surface portion 45 provided to bridge between the first receiving portion 41 and the second receiving portion 42, and a retaining portion 46.

[0083] The first receiving portion 41 is provided on the upper surface of the support piece 214 of the floor angle member 211 in the first inner holding portion 21A of the first holding portion 21, and the floor portion 45 is placed on the upper end portion. Such a first receiving portion 41 includes a main body plate portion 41a located in the center when viewed in cross section from the side, a connecting plate portion 41b, a placed plate portion 41c, a support plate portion 41d, a first rib 41e, a second rib 41f, and a reinforcing plate portion 41g.

[0084] The connecting plate portion 41b is integrally formed with the lower end portion of the main body plate portion 41a, and protrudes further toward the passage space 20 than the main body plate portion 41a. A plurality of through holes are formed in the connecting plate portion 41b, and connecting members 44 having tip portions that protrude downward from the lower surface of the connecting plate portion 41b are provided in advance in the plurality of through holes. In this embodiment, the connecting members 44 are bolts, and the plurality of through holes formed in the connecting plate portion 41b are bolt holes into which the bolts are screwed. Therefore, the connecting members 44 can be maintained attached to the connecting plate portion 41b. The connecting plate portion 41b, with the tip portions of the connecting members 44 protruding from the underside, is placed on the upper surface of the support piece 214 of the floor angle member 211. As described above, the support piece 214 has multiple through holes formed therein, allowing the tip portions of multiple connecting members 44 to pass through. The plurality of connecting members 44 are passed through a plurality of through-holes formed in the support piece 214, and their tips protrude below the lower surface of the support piece 214. A hand knob 44a having an internal thread is provided at the tips of the plurality of connecting members 44 protruding from the lower surface of the support piece 214, and by tightening the hand knob 44a, the first receiving portion 41 itself is connected and fixed to the floor angle member 211. As a result, the first receiving portion 41 is supported by the fourth side wall 15 of the first mobile unit 1 via the floor angle member 211 (first holding portion 21, first inner holding portion 21A).

[0085] The placement plate portion 41c is integrally formed on the upper end of the main body plate portion 41a, and protrudes further toward the first mobile unit 1 than the main body plate portion 41a. The end of the floor surface portion 45 on the side of the first mobile unit 1 is placed on the upper surface of the placement plate portion 41c.

[0086] The support plate portion 41d is integrally formed with the end portion of the placement plate portion 41c on the first mobile unit 1 side. Such support plate portion 41d protrudes upward from the end of the placement plate portion 41c on the first mobile unit 1 side to an extent that does not obstruct entry and exit through the first communication opening 15a, and rests in contact with the side surface of the passage space 20 in the door frame of the first door 15b. Therefore, when weight is applied to the floor portion 40, the support plate portion 41d is pressed against the side surface of the passage space 20 in the door frame of the first door 15b, thereby dispersing the force.

[0087] The first rib 41e is provided across the side of the main body plate portion 41a facing the passage space 20 and the upper surface of the connecting plate portion 41b, and is fixed to both the main body plate portion 41a and the connecting plate portion 41b. The second rib 41f is provided across the side of the first mobile unit 1 on the main body plate portion 41a and the underside of the placed plate portion 41c, and is fixed to both the main body plate portion 41a and the placed plate portion 41c. The first ribs 41e and the second ribs 41f are provided at intervals along the length direction (north-south direction in FIG. 8) of the first receiving portion 41. The provision of the first ribs 41e and the second ribs 41f improves the rigidity of the first receiving portion 41.

[0088] The reinforcing plate portion 41g is provided perpendicular to the first rib 41e in a plan view, and is provided facing the passage space 20 side of the first receiving portion 41. Such reinforcing plate portion 41g reinforces the periphery of the portion where a retaining portion 46, which will be described later, is provided, and by being provided perpendicular to and integral with the first rib 41e, the rigidity of the structure surrounding the first receiving portion 41, including the first rib 41e, is improved.

[0089] The second receiving portion 42 is provided on the upper surface of the support piece 224 of the floor angle member 221 in the second inner holding portion 22A of the second holding portion 22, and the floor portion 45 is placed on the upper end portion. Such a second receiving portion 42 includes a main body plate portion 42a located in the center when viewed in cross section from the side, a connecting plate portion 42b, a placed plate portion 42c, an engaged plate portion 42d, a support plate portion 42e, a first rib 42f, and a second rib 42g.

[0090] The connecting plate portion 42b is integrally formed with the lower end portion of the main body plate portion 42a, and protrudes further toward the passage space 20 than the main body plate portion 42a. A plurality of through holes are formed in the connecting plate portion 42b, and connecting members 44 are provided in advance in the plurality of through holes, with the tips of the connecting members 44 protruding downward below the lower surface of the connecting plate portion 42b. In this embodiment, the connecting members 44 are bolts, and the plurality of through holes formed in the connecting plate portion 42b are bolt holes into which the bolts are screwed. Therefore, the connecting members 44 can be maintained attached to the connecting plate portion 42b. The connecting plate portion 42b, with the tip portions of the connecting members 44 protruding from the lower surface, is placed on the upper surface of the support piece 224 of the floor angle member 221. As described above, the support piece 224 has multiple through holes formed therein, allowing the tip portions of multiple connecting members 44 to pass through. The tips of the multiple connecting members 44 passed through the multiple through holes formed in the support piece 224 protrude downward below the underside of the support piece 224. A hand knob 44a with an internal thread is provided at the tips of the multiple connecting members 44 protruding from the underside of the support piece 224, and by tightening the hand knob 44a, the second receiving portion 42 itself is connected and fixed to the floor angle member 221. As a result, the second receiving portion 42 is supported by the second side wall 113 of the second mobile unit 100 via the floor angle member 221 (second holding portion 22, second inner holding portion 22A).

[0091] The placement plate portion 42c is integrally formed on the upper end of the main body plate portion 42a, and protrudes from the main body plate portion 42a toward both the passage space 20 side and the second mobile unit 100 side. The end of the floor surface portion 45 on the side of the second mobile unit 100 is placed on the upper surface of the placement plate portion 42c. In this embodiment, the portion of the placement plate portion 42c closer to the passage space 20 than the main body plate portion 42a is made of double-layered steel plates. The terminal portion at the portion closer to the second mobile unit 100 than the main body plate portion 42a is bent to form the support plate portion 42e. In this embodiment, the engagement plate portion 42d is welded.

[0092] The engaged plate portion 42d is integrally formed with the end of the placed plate portion 42c on the second mobile unit 100 side, and protrudes upward from that end to an extent that does not obstruct passage through the second communication opening 113a. An engaging plate portion 43b of the cover portion 43, which will be described later, is adapted to engage with this engaged plate portion 42d.

[0093] The support plate portion 42e is integrally formed with the end portion of the placement plate portion 42c on the side of the second mobile unit 100. The support plate portion 42e is disposed with a gap between it and the engaged plate portion 42d, and the engaging plate portion 43b of the cover portion 43 is inserted into the gap between the support plate portion 42e and the engaged plate portion 42d. Such support plate portion 42e protrudes and bends upward from the end of the placement plate portion 42c on the second mobile unit 100 side within a range that does not obstruct entry and exit through the second communication opening 113a, and rests in contact with the side surface of the door frame of the second door 113b toward the passage space 20. Therefore, when weight is applied to the floor portion 40, the support plate portion 42e is pressed against the side surface of the door frame of the second door 113b toward the passage space 20, thereby dispersing the force.

[0094] The first rib 42f is provided across the side of the main body plate portion 42a facing the passage space 20 and the upper surface of the connecting plate portion 42b and the lower surface of the receiving plate portion 42c, and is fixed to each of these plate portions 42a, 42b, 42c. In this embodiment, a plurality of first ribs 42f are provided at intervals in the longitudinal direction of the second receiving portion 42. Of the plurality of first ribs 42f, at least two first ribs 42f function as side walls located at both ends of the second receiving portion 42 in the longitudinal direction. The first rib 42f, which functions as a side wall, has a through hole formed therein through which the male thread of a hand knob 43e (described later) is passed, and a nut is welded to the through hole at a position corresponding to the through hole, so that the male thread of the hand knob 43e can be screwed into the nut.

[0095] The second rib 42g is provided across the side of the main body plate portion 42a facing the second mobile unit 100 and the underside of the placed plate portion 42c, and is fixed to both the main body plate portion 42a and the placed plate portion 42c. The first ribs 42f and the second ribs 42g are provided at intervals along the length direction (north-south direction in FIG. 8) of the second receiving portion 42. The provision of the first ribs 42f and the second ribs 42g improves the rigidity of the second receiving portion 42.

[0096] The floor portion 45 is provided to bridge between the first receiving portion 41 and the second receiving portion 42, thereby forming a floor surface between the first mobile unit 1 and the second mobile unit 100 that people can step on and walk on. Such a floor surface portion 45 comprises a main body panel 45a, a frame material 45b, a floor finishing material 45c, a three-sided trim material 45d for viewing the edges except for the edge on the second mobile unit 100 side, and a trim material base 45e. Furthermore, the edge of the floor surface portion 45 on the second mobile unit 100 side is covered by the cover portion 43. That is, the edge of the floor surface portion 45 on the second mobile unit 100 side can be seen by the cover portion 43.

[0097] The main body panel 45a is formed in a rectangular shape in a plan view, constitutes the bottom surface of the entire floor portion 45, and is made of, for example, a hot-dip galvanized steel plate. The length of the main body panel 45a in the longitudinal direction is set to be slightly shorter than the width of the first communication opening 15a and the width of the second communication opening 113a. In addition, the short-side length of the main body panel 45a is set to be longer than the gap between the first receiving portion 41 and the second receiving portion 42, while being shorter than the distance between the first communication opening 15a and the second communication opening 113a.

[0098] The frame member 45b is formed in a rectangular frame shape and is fixed to the four side edges of the main panel 45a. The frame member 45b is fixed to the main panel 45a from the underside with fasteners. The frame member 45b also has a raised portion at its outermost periphery that protrudes above the top surface of the main panel 45a. The height position of the upper end of the raised portion relative to the top surface of the main panel 45a is set to be approximately the same as the height position of the top surface of the floor finishing material 45c.

[0099] The floor finishing material 45c is placed on the upper surface of the main body panel 45a and constitutes the majority of the surface that people actually step on and walk on within the floor section 40. The floor finishing material 45c is also fixed to the underside of the main body panel 45a with screws or the like. The floor finishing material 45c has both longitudinal and lateral lengths set shorter than the longitudinal and lateral lengths of the main body panel 45a. The floor finishing material 45c is positioned so as to contact the rising portion of the frame material 45b surrounding the four periphery of the main body panel 45a that is located on the second mobile unit 100 side. Meanwhile, the floor finishing material 45c is positioned away from the rising portions on the other three sides. A trim base 45e is provided in the gap between the rising portions on the three sides of the frame material 45b and the floor finishing material 45c.

[0100] As described above, the three-sided trim 45d is used to trim the edges of the floor portion 45 except for the edge on the second mobile unit 100 side, and can be attached by fitting it into the trim base 45e. More specifically, the three-sided parting material 45d is a resin floor parting material that is assembled in a U-shape in plan view. The edges of the floor parting material that meet are cut at a 45-degree angle so that they are aligned at right angles when assembled in a U-shape in plan view. Furthermore, the underside of each floor parting material is formed with a downward-protruding engagement protrusion. A trim material base 45e provided in the gap between the rising portions on three sides of the frame material 45b and the floor finishing material 45c has an engaging recess that opens upward. The three-sided floor trim material 45d can be fitted with the engaging protrusions of each floor trim material inserted into the engaging recesses of the trim material base 45e, thereby enabling the edges of the floor surface 45 to be trimmed except for the edge on the second mobile unit 100 side.

[0101] 8, the retaining portion 46 has a high nut that is pre-fixed to a portion of the first receiving portion 41, and a pin that is inserted into the high nut from the upper surface side of the main body panel 45a. The high nut is joined and fixed to a portion of the first receiving portion 41 by, for example, welding. The pin is simply inserted into a hole in the high nut and is not screwed into it. That is, the retaining portion 46 restricts the end of the floor portion 45 on the side of the first mobile unit 1 from moving horizontally relative to the first receiving portion 41. The retaining portion 46 is intended to prevent the main body panel 45a from coming off the first receiving portion 41, and since the main body panel 45a is prevented from coming off the first receiving portion 41, the entire floor portion 45 is less likely to shift out of position relative to the first receiving portion 41. On the other hand, the floor surface portion 45 is not fixed to the second receiving portion 42, and the frame material 45b is simply placed on the upper surface of the second receiving portion 42. In this embodiment, the high nut is pre-bonded and fixed to the inner surface (side surface of the first mobile unit 1) of the reinforcing plate portion 41g, but this is not limited thereto and the high nut may be pre-bonded and fixed to the side surface of the first rib 41e. In other words, the function of the high nut in the retaining portion 46 of this embodiment is to fix the main body panel 45a to the first receiving portion 41, so the fixing location of the high nut is not particularly limited as long as it is a part of the first receiving portion 41.

[0102] The cover portion 43, which functions as one of the trimming members, is provided on the edge portion of the floor portion 45 on the second mobile unit 100 side, and can trim off this edge portion on the second mobile unit 100 side. Such a cover portion 43 includes a main body plate portion 43a, which is the portion that directly covers the edge portion of the floor portion 45 on the second mobile unit 100 side, an engagement plate portion 43b, a finishing plate portion 43c, a side wall portion 43d, and a hand knob 43e having a male thread portion.

[0103] The main body plate portion 43a is located above the placement plate portion 42c of the second receiving portion 42 and is disposed approximately parallel to the placement plate portion 42c. A gap S is formed between this main body plate portion 43a and the placement plate portion 42c. The end of the floor surface portion 45 placed on the placement plate portion 42c of the second receiving portion 42 on the second mobile unit 100 side is inserted into the gap S between the placement plate portion 42c and the main body plate portion 43a, and is positioned between the placement plate portion 42c and the main body plate portion 43a.

[0104] The engagement plate portion 43b is integrally formed with the end portion of the main body plate portion 43a on the second mobile unit 100 side, and protrudes downward from that end portion. As described above, the engaging plate portion 43b is inserted into the gap between the engaged plate portion 42d and the support plate portion 42e in the second receiving portion 42 and engages with the engaged plate portion 42d. This makes it difficult for the entire cover portion 43 to move in the horizontal direction. In other words, the cover portion 43 is difficult to detach from the second receiving portion 42. On the other hand, since it is easy to move in the vertical direction, the cover portion 43 is detachable from the second receiving portion 42.

[0105] The finishing plate portion 43c is a finishing material provided on the upper surface of the main body plate portion 43a, and is fixed to the main body plate portion 43a with screws or the like. Both ends of the finishing plate portion 43c in the short direction (east-west direction in FIG. 8) are inclined obliquely downward, thereby minimizing the step that occurs at the position of the cover portion 43. The longitudinal ends of the finishing plate portion 43c are located further to the side than the longitudinal ends of the three-sided parting material 45d, so that the two ends of the three-sided parting material 45d, which is U-shaped in plan view, are covered by the finishing plate portion 43c.

[0106] The side wall portions 43d are integrally formed on both longitudinal ends of the main body plate portion 43a and protrude downward from the both ends. They may be integrally formed not only with the main body plate portion 43a but also with the engaging plate portion 43b. The side wall portions 43d are integrally formed on the main body plate portion 43a or the engaging plate portion 43b by welding or the like. A through hole is formed in the side wall portion 43d. The through hole is positioned opposite the nut on the first rib 42f of the second receiving portion 42 when the engaging plate portion 43b of the cover portion 43 is engaged with the engaged plate portion 42d of the second receiving portion 42.

[0107] The hand knob 43e has a male thread as described above, and is used to fix the cover portion 43 to the second receiving portion . The hand knob 43e is passed through the through-hole of the side wall portion 43d and screwed into a nut provided on the first rib 42f of the second receiving portion 42. This fixes the cover portion 43 to the second receiving portion 42.

[0108] The length between the side wall portions 43d provided at both ends of the cover portion 43 in the length direction is set to be longer than the length of the end of the floor portion 45 on the second mobile unit 100 side. Furthermore, although the end of the floor portion 45 on the side of the second mobile unit 100 is disposed in the gap S between the main body plate portion 43a of the cover portion 43 and the placement plate portion 42c of the second receiving portion 42, it is not fixed to either the cover portion 43 or the second receiving portion 42. In other words, it is sufficient that the end of the floor portion 45 on the side of the second mobile unit 100 is placed on the placement plate portion 42c of the second receiving portion 42 and is accommodated between the side wall portions 43d provided at both ends in the longitudinal direction of the cover portion 43. Therefore, even if the parking positions of the first mobile unit 1 and the second mobile unit 100 are slightly misaligned, there is no need to adjust the distance between the first mobile unit 1 and the second mobile unit 100.

[0109] Furthermore, the floor portion 45 is in a state where the end portion on the side of the first mobile unit 1 is not easily disengaged from the first receiving portion 41 by the retaining portion 46 . On the other hand, the side end of the second mobile unit 100 is inserted into the gap S between the main body plate portion 43a of the cover portion 43 and the mounting plate portion 42c of the second receiving portion 42, allowing it to move flexibly in the horizontal direction (east-west, north-south directions). Therefore, even if the gap between the first mobile unit 1 and the second mobile unit 100 is wide or narrow, the floor surface portion 45 can be bridged within a range where it does not come off the first receiving portion 41 and the second receiving portion 42. This minimizes the need for adjustment work related to the connection between the first mobile unit 1 and the second mobile unit 100, making it easy to connect the mobile units together. Furthermore, even if vibrations occur in either or both of the first mobile unit 1 and the second mobile unit 100 and cause them to sway horizontally, the floor portion 40 is unlikely to be damaged because the end of the floor portion 40 on the side of the second mobile unit 100 is not fixed. Moreover, since the cover portion 43 is provided on the floor portion 45 as described above, the end portion on the side of the second mobile unit 100 does not come off upward, and therefore the first mobile unit 1, which is prevented from coming off by the retaining portion 46, inevitably does not come off upward either. Therefore, it can be said that the end portion on the side of the first mobile unit 1 of the floor portion 45 is in a fixed state, even though it is simply prevented from coming off by the retaining portion 46.

[0110] In this embodiment, each of the hand knobs 43e and 44a is connected to a nearby member by a linear member such as a chain, thereby preventing the hand knobs from falling.

[0111] [About connecting the mobile unit] Next, a case where the first mobile unit 1 and the second mobile unit 100 are connected by a connecting and surrounding means will be described.

[0112] First, the base plate portion 23 and the sheet metal cover 24 are attached to the fourth side wall 15 of the first mobile unit 1 and the second side wall 113 of the second mobile unit 100. However, the sheet metal cover 24 is not attached to the lower edge portion 20d. Although the attachment of the base plate portion 23 and the sheet metal cover 24 may be performed on-site, it is basically performed during the manufacturing stage of the first mobile unit 1 and the second mobile unit 100.

[0113] Next, the angle members of the first holding portion 21 and the second holding portion 22 are fixed to the base plate portion 23. In addition, the fixing of each angle member in the first inner retaining portion 21A, the first outer retaining portion 21B, the second inner retaining portion 22A, and the second outer retaining portion 22B may be done on site, or may be done during the manufacturing stage of the first mobile unit 1 and the second mobile unit 100. In particular, of the first outer holding portion 21B and the second outer holding portion 22B, the second angle member that is inserted into the slit 23a of the base plate portion 23 is preferably fixed at the manufacturing stage.

[0114] In this embodiment, the attachment of the base 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 performed during the manufacturing stage of the first mobile unit 1 and the second mobile unit 100. In this case, the work of welding the bolts of the fixing members 25 is then performed. That is, the bolts of the fixing members 25 are inserted into through holes formed in the holding pieces of the second angle members of the first outer holding portion 21B and the second outer holding portion 22B that are inserted into the slits 23a of the base plate portion 23, and fixed by welding.

[0115] Thereafter, the first mobile unit 1 and the second mobile unit 100 are placed on a dolly 2 and towed and transported by an automobile (not shown), and are placed in a suitable location while still on the dolly 2. At this time, the first mobile unit 1 and the second mobile unit 100 are placed adjacent to each other so that the first communication opening 15a and the second communication opening 113a face each other, as shown in FIG.

[0116] Next, the first outer sheet piece 321 on the first mobile unit 1 side of the outer sheet portion 32 is sandwiched between both angle members of the first outer holding portion 21B of 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. In addition, the second outer sheet piece 322 on the second mobile unit 100 side of the outer sheet portion 32 is sandwiched between both angle members of the second outer holding portion 22B of 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.

[0117] Next, the first inner sheet piece 311 on the first mobile unit 1 side of the inner sheet portion 31 is sandwiched between both angle members of the first inner holding portion 21A of 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. In addition, the second inner sheet piece 312 on the second mobile unit 100 side of the inner sheet portion 31 is sandwiched between both angle members of the second inner holding portion 22A of 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. The work of holding the inner sheet portion 31 and the outer sheet portion 32 can be performed from the aisle space 20 side.

[0118] Next, the first outer sheet piece 321 on the first mobile unit 1 side and the second outer sheet piece 322 on the second mobile unit 100 side 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 handled as a single outer sheet part 32.

[0119] Next, the first inner sheet piece 311 on the first mobile unit 1 side and the second inner sheet piece 312 on the second mobile unit 100 side are connected by an inner waterproof zipper 313. The first inner sheet piece 311 and the second inner sheet piece 312 connected by the inner waterproof zipper 313 can be handled as a single inner sheet portion 31. In addition, at the same time as connecting the first inner sheet piece 311 and the second inner sheet piece 312 with the inner waterproof fastener 313, the insulating material 35 is filled between the inner sheet portion 31 and the outer sheet portion 32.

[0120] Next, as shown in Figure 9, the first receiving portion 41 is placed on the upper surface of the support piece 214 of the floor angle member 211 of the first holding portion 21, and the tip of the connecting member 44 is passed through multiple through holes formed in the support piece 214 and tightened with a hand knob 44a having a female thread portion. In addition, the second receiving portion 42 is placed on the upper surface of the support piece 224 of the floor angle member 221 of the second holding portion 22, and the tip of the connecting member 44 is passed through multiple through holes formed in the support piece 224 and tightened with a hand knob 44a having a female thread portion.

[0121] Next, the floor portion 45 is provided between the first receiving portion 41 and the second receiving portion 42 so as to bridge them. At this time, the end of the main body panel 45a of the floor portion 45 on the side of the first mobile unit 1 is pinned to a high nut previously joined and fixed to the first receiving portion 41. In other words, the floor portion 45 is prevented from coming off the first receiving portion 41 by the retaining portion 46. The frame material 45b, the floor finishing material 45c, and the three-sided parting material 45d are provided on the main body panel 45a in advance. The three-sided parting material 45d may be attached after the cover part 43 is attached.

[0122] Next, the engaging plate portion 43b of the cover portion 43 is engaged with the engaged plate portion 42d of the second receiving portion 42. Thereafter, the male thread portion of the hand knob 43e is inserted through the through hole of the side wall portion 43d and screwed into the nut of the first rib 42f of the second receiving portion 42, thereby fixing the cover portion 43 to the second receiving portion 42.

[0123] In this manner, the first mobile unit 1 and the second mobile unit 100 can be connected by the connecting and surrounding means. In this embodiment, only the attachment of the base plate 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 during the manufacturing stage of the first mobile unit 1 and the second mobile unit 100, but this is not limited to this. For example, the first inner sheet piece 311 and the first outer sheet piece 321 may be held in advance by the first inner holding portion 21A and the first outer holding portion 21B of the first mobile unit 1, respectively, and the second inner sheet piece 312 and the second outer sheet piece 322 may be held in advance by the second inner holding portion 22A and the second outer holding portion 22B of the second mobile unit 100, respectively, before the first mobile unit 1 and the second mobile unit 100 are transported. In this case, at the construction site, only the connection of the inner sheet portion 31 and the outer sheet portion 32 with the outer waterproof fastener 323 and the inner waterproof fastener 313, the placement of the floor portion 40, and the sandwiching of the waterproof sheet portion 30 may be performed.

[0124] [Modification] It should be noted that the embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit of the present invention. Modifications will be described below. The following modifications may be combined as much as possible. In each of the following modifications, elements common to the above-described embodiments will be assigned the same reference numerals, and descriptions thereof will be omitted or simplified.

[0125] [Variation 1] In this modified example, the first mobile unit 1 and the second mobile unit 100 are connected only by the floor section 40. That is, in the above embodiment, the waterproof sheet section 30 is stretched between the first mobile unit 1 and the second mobile unit 100 and is arranged to completely surround the passage space 20, and the floor section 40 is stretched between the first mobile unit 1 and the second mobile unit 100, but in this modified example, the waterproof sheet section 30 is not stretched between the first mobile unit 1 and the second mobile unit 100, and only the floor section 40 is stretched between the first mobile unit 1 and the second mobile unit 100.

[0126] In this modified example, it is preferable to waterproof the various materials constituting the floor portion 40, including the floor finishing material 45c, or to lay a waterproof sheet on the upper surface of the floor portion 40 to take measures against rain.

[0127] Furthermore, a simple handrail such as a rope may be provided between the first communication opening 15a and the second communication opening 113a.

[0128] [Variation 2] In the above embodiment, the retaining portion 46 is configured by a high nut and a pin, but in this modified example, it is configured by a recess-projection fitting structure. In other words, the anti-slip portion restricts the first mobile unit 1 side end of the floor portion 45 from moving horizontally relative to the first receiving portion 41, and therefore if a concave-convex fitting structure that fits in a concave-convex manner in cross section is adopted at the contact point between the first mobile unit 1 side end of the floor portion 45 and the first receiving portion 41, it becomes possible to restrict the first mobile unit 1 side end of the floor portion 45 from moving horizontally relative to the first receiving portion 41.

[0129] The convex portion used in this modification is preferably one with a corner at the tip, such as a cylindrical or prismatic shape, and a concave portion is also formed to match this. By adopting such a concave-convex fitting structure, it is easier to restrict the end of the floor portion 45 on the side of the first mobile unit 1 from moving horizontally relative to the first receiving portion 41 than when, for example, a cone-shaped or pyramidal convex portion is adopted.

[0130] [Variation 3] The connection structure of the mobile units 1,100 in the above embodiment is designed to allow people to pass through, but it may also be a connection structure that does not allow people to pass through and is simply designed to allow the connection between the first mobile unit 1 and the second mobile unit 100. In this case, the first mobile unit 1 and the second mobile unit 100 do not necessarily have to have communication ports (first communication port 15a, second communication port 113a). Furthermore, the floor portion 40 and the floor surface portion 45 may be rephrased as the erection portion 40 and the top surface portion 45, respectively.

[0131] Therefore, although not shown, the connecting structure of the mobile unit 1,100 in this modified example is such that the first mobile unit 1 and the second mobile unit 100 are arranged side by side, and a bridging section 40 is provided spanning between the wall 15 of the first mobile unit 1 and the wall 113 of the second mobile unit 100, and the bridging section 40 comprises a first receiving section 41 supported on the wall 15 of the first mobile unit 1, a second receiving section 42 supported on the wall 113 of the second mobile unit 100, an upper surface section 45 provided spanning between the first receiving section 41 and the second receiving section 42, and a cover section 43 that is detachably attached to the second receiving section 42 and has a finishing plate section 43c arranged above the second receiving section 42 with a gap therebetween, and one end of the upper surface section 45 is fixed to the first receiving section 41 and the other end is inserted into the gap S formed between the second receiving section 42 and the finishing plate section 43c.

[0132] In addition, when the floor section 40 is referred to as the erection section 40 and the floor surface section 45 as the upper surface section 45 as described above, the names of other components associated with these that evoke a floor (people walking or passing through) may also be changed as appropriate. Furthermore, since the connecting structure of the mobile unit 1,100 in this modified example does not need to be equipped with the first communication port 15a and the second communication port 113a as described above, in order to realize this modified example, the components associated with these (first door 15b, second door 113b, etc.) may be excluded as appropriate.

[0133] The above-disclosed embodiments have been made for the purpose of illustration and example only, and are not intended to limit the scope of the present invention, which should be interpreted by the terms of the claims. [Explanation of symbols]

[0134] 1. First Mobile Unit 100 Second Mobile Unit 2 carts 3 Support stand 4 Base Frame 10 beds 15 Fourth side wall 15a First access gate 15b First Door 15c draining material 110 beds 113 Second side wall 113a Second contact port 113b Second Door 120 Decks 20 aisle space 20a Upper edge 20b One side edge 20c Other side edge 20d Lower edge 21 First holding part 21A First inner holding part 210 Outer angle member 211 Floor angle members 212 Fixed piece 213 Holding piece 214 Support piece 215 Stiffener 21B First outer holding part 22 Second holding part 22A Second inner holding part 220 Outer angle member 221 Floor angle members 222 Fixed piece 223 Holding piece 224 Support piece 225 Stiffener 22B Second outer holding part 23 Base plate part 23a Slit 24 Sheet metal cover 25 Fixing member 30 Waterproof sheet section 31 Inner seat part 311 First inner sheet piece 312 Second inner sheet piece 313 Inner waterproof zipper 314 First hook-and-loop fastener 314a First zipper piece 314b Second zipper piece 315 Second hook-and-loop fastener 315a First zipper piece 315b Second zipper piece 32 Outer sheet part 321 First outer sheet piece 322 Second outer sheet piece 323 External waterproof zipper 324 First hook-and-loop fastener 324a First zipper piece 324b Second zipper piece 325 Second hook-and-loop fastener 325a First zipper piece 325b Second zipper piece 326 Zipper Cover 33 Watertight materials 34 Eyelet part 35 Insulation 40 Floor 41 First receiving part 41a Main body plate 41b Connecting plate part 41c Placing plate portion 41d Support plate part 41e First Rib 41f Second Rib 41g Reinforcement plate 42 Second receiving part 42a Main body plate 42b Connecting plate part 42c Placing plate 42d Engaged plate portion 42e Support plate part 42f First Rib 42g second rib 43 Cover part 43a Main body plate 43b Engagement plate portion 43c Finishing plate section 43d Side wall part 43e Hand Knob 44 Connecting member 44a Hand Knob 45 Floor section 45a Main panel 45a 45b frame material 45c floor covering material 45d three-sided trim 45e Trim Base 46 Retaining part

Claims

1. a first mobile unit having a first communication port formed in a wall thereof and a second mobile unit having a second communication port formed in a wall thereof are arranged adjacent to each other with the first communication port and the second communication port facing each other; A floor portion is provided between the first communication port and the second communication port, The floor portion is a first receiving portion supported on the wall of the first mobile unit; a second receiving portion supported on the wall of the second mobile unit; a floor portion provided to bridge between the first receiving portion and the second receiving portion; a cover portion detachably attached to the second receiving portion and having a finishing plate portion disposed above the second receiving portion with a space therebetween, A connecting structure of a mobile unit, characterized in that one end of the floor portion is fixed to the first receiving portion and the other end is inserted into a gap formed between the second receiving portion and the finishing plate portion.

2. The mobile unit connection structure according to claim 1, characterized in that the floor portion further comprises a retaining portion that restricts the one end of the floor surface portion from moving horizontally relative to the first receiving portion.

3. The mobile unit connection structure described in claim 1, further comprising a waterproof sheet section that is provided between adjacent first and second mobile units to connect the first and second mobile units and surrounds the space between the opposing first and second communication ports to form an aisle space together with the floor section.

4. 4. The mobile unit connection structure according to claim 3, wherein the waterproof sheet portion covers the upper edge, both side edges and lower edge of the passage space.

5. a first holding portion that holds an end portion of the waterproof sheet portion on the first mobile unit side is provided on the wall of the first mobile unit; a second holding portion that holds an end portion of the waterproof sheet portion on the second mobile unit side is provided on the wall of the second mobile unit; the first holding portion is connected to the first receiving portion and supports the first receiving portion; 5. The mobile unit connection structure according to claim 3, wherein the second holding portion is connected to the second receiving portion and supports the second receiving portion.

6. The waterproof sheet portion is an inner seat portion located on the aisle space 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 and the second mobile unit, respectively; A heat insulating material is filled between the inner sheet portion and the outer sheet portion, The first holding portion is a first inner holding portion that holds an end portion of the inner sheet portion on the first mobile unit side; a first outer holding portion that holds an end portion of the outer sheet portion on the first mobile unit side, The second holding portion is a second inner holding portion that holds an end portion of the inner sheet portion on the second mobile unit side; a second outer holding portion that holds an end portion of the outer sheet portion on the second mobile unit side, The first receiving portion is connected to the first inner holding portion of the first holding portion, The mobile unit connection structure according to claim 5, wherein the second receiving portion is connected to the second inner holding portion of the second holding portion.

7. The waterproof sheet portion is an inner seat portion located on the aisle space 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 and the second mobile unit, respectively; 5. The mobile unit connection structure according to claim 3, wherein a heat insulating material is filled between the inner sheet portion and the outer sheet portion.

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