Connecting pathway device

Abstract

The challenge is to make it possible for people to pass between the first and second openings on the crossing floor. [Solution] The connecting passage device 30 comprises a first case lower part 402L attached to the first right outer wall 12L along the lower end of the first opening and formed in a groove shape so as to open toward the second left outer wall 14R, a second case lower part 402R attached to the second left outer wall 14R along the lower end of the second opening and formed in a groove shape so as to open toward the first right outer wall 12L, and a connecting floor 85 or 150 placed on the first case lower part 402L and the second case lower part 402R and spanning between the first case lower part 402L and the second case lower part 402R.

Description

[Technical Field]

[0001] The technology disclosed in this specification relates to a connecting passage device. [Background technology]

[0002] Patent Document 1 discloses a vehicle connecting hood. This vehicle connecting hood includes a pair of hood seats, a pair of mounting frames, a pair of hood folds, a pair of metal frames, eight hood suspension devices, and a pair of crossing plates. The hood seat is fixed to the end face of the first car body. The hood seat is rectangular so as to surround the periphery of the gangway. The rectangular mounting frame is fixed to the entire surface of the hood seat. One end of the hood folds is connected to the mounting frame. The other end of the hood folds is fixed to the rectangular metal frame. The hood folds are made of a bendable material. The hood folds are formed into an endless rectangle that allows passengers to pass through. A pair of upper and lower hood suspension devices are installed in an inclined state between one side of the hood seat and one side of the metal frame. The other pair of hood suspension devices is installed in an inclined state between the other side of the hood seat and the other side of the metal frame. The hood suspension device is spring-action type, preventing sagging due to the weight of the metal frame and vibration and swinging during travel. The gangway plank is connected to the metal frame so that it can move in the width direction. Similar to the end face of the first car body, the end face of the second car body is also equipped with a hood base, mounting frame, hood pleats, metal frame, four hood suspension devices, and a gangway plank. The metal frame attached to the first car body is connected to the metal frame attached to the second car body. The gangway plank attached to the first car body is connected to the gangway plank attached to the second car body via the metal frame, etc., inside the hood pleats. When the two metal frames are separated, the two hood pleats and the two gangway planks also separate from each other. This prevents people from passing between the first and second car bodies. However, it is desirable to allow people to pass between the first and second car bodies even when the two hood pleats are separated from each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-157443 Summary of the Invention [Problem to be solved by the invention]

[0004] The problem to be solved by the technology disclosed in this specification is to enable people to pass between the first opening and the second opening by walking over the access floor. [Means for solving the problem]

[0005] In order to solve the above problems, a connecting passage device is provided which is formed on a first outer wall and a second outer wall facing each other and connects a first opening and a second opening facing each other, the connecting passage device comprising: a first case lower part attached to the first outer wall along a lower end of the first opening; a second case lower part attached to the second outer wall along a lower end of the second opening; a first holder attached to the top of the first case lower part; a second holder attached to the top of the second case lower part; and a floor plate which is bridged between the first holder and the second holder and is received by the first holder and the second holder; The floor plate is provided on the first holder so as to be movable relative to the first holder in a direction from the first holder to the second holder and in the reverse direction, and the floor plate is provided on the second holder so as to be movable relative to the second holder in a direction from the second holder to the first holder and in the reverse direction. . In order to solve the above problems, a connecting passage device that is formed on a first outer wall and a second outer wall facing each other and that connects the first opening and the second opening that face each other includes a first case lower part attached to the first outer wall along a lower end of the first opening, a second case lower part attached to the second outer wall along a lower end of the second opening, a first holder attached to the top of the first case lower part, a second holder attached to the top of the second case lower part, a floor plate that is bridged between the first holder and the second holder and is received by the first holder and the second holder, and a floor plate that is attached to the first outer wall along an upper end of the first opening. a first case upper part attached to the first outer wall along the left edge of the first opening, a first case left part attached to the first outer wall along the left edge of the first opening, a first case right part attached to the first outer wall along the right edge of the first opening, a second case upper part attached to the second outer wall along the upper edge of the second opening, a second case left part attached to the second outer wall along the left edge of the second opening, and a second case right part attached to the second outer wall along the right edge of the second opening, a flexible tubular first inner sheet, a flexible tubular first outer sheet, a flexible tubular second inner sheet, and a flexible tubular second outer sheet, Equipped with The first case is formed by the first case lower part, the first case upper part, the first case left part, and the first case right part being connected in a frame shape to surround the first opening, the first case being formed in a groove shape to open toward the second outer wall, the second case is formed by the second case lower part, the second case upper part, the second case left part, and the second case right part being connected in a frame shape to surround the second opening, the second case being formed in a groove shape to open toward the first outer wall, the first inner sheet is attached to the first case along the outer periphery of the first opening inside the first case, the first outer sheet surrounds the first inner sheet from above, below, and both sides, and the first outer sheet is attached to the first case. The first holder is attached to the first case on the inside along the outer periphery of the first opening, the second inner sheet is attached to the second case on the inside along the outer periphery of the second opening, the second outer sheet surrounds the second inner sheet from above, below and both sides, the second outer sheet is attached to the second case on the inside along the outer periphery of the second opening, the first holder is attached to the top of the lower part of the first case on the inside of the first inner sheet, the second holder is attached to the bottom of the second case on the inside of the second inner sheet, and the floor panel is bridged between the first holder and the second holder on the inside of the first inner sheet and the second inner sheet. [Effects of the Invention]

[0006] A person can move between the first opening and the second opening by walking on the floorboard. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a first embodiment of the accommodation. [Figure 2] FIG. 2 is a perspective view of the accommodation in a second configuration. [Figure 3] FIG. 3 is a perspective view of the accommodation in a third embodiment. [Figure 4] FIG. 4 is a perspective view of a fourth embodiment of the accommodation. [Figure 5] FIG. 5 is a perspective view of a first separator of the connecting passage device. [Figure 6]FIG. 6 is an exploded perspective view of the first separator of the connecting passage device. [Figure 7] FIG. 7 is a perspective view of the second separator of the connecting passage device. [Figure 8] FIG. 8 is an exploded perspective view of the second separator of the connecting passage device. [Figure 9] FIG. 9 is a vertical cross-sectional view of region IX shown in FIGS. [Figure 10] FIG. 10 is a vertical cross-sectional view of the region X shown in FIGS. [Figure 11] FIG. 11 is a horizontal cross-sectional view of the area XI shown in FIGS. [Figure 12] FIG. 12 is an enlarged view of region XII shown in FIG. [Figure 13] FIG. 13 is an enlarged view of region XIII shown in FIG. [Figure 14] FIG. 14 is an enlarged view of region XIV shown in FIG. [Figure 15] FIG. 15 is a front view of the upper part of the first case. [Figure 16] FIG. 16 is a front view of the lower part of the first case. [Figure 17] FIG. 17 is an exploded perspective view of the first cap. [Figure 18] FIG. 18 is a cross-sectional view of a main part of a connecting passage device in the form of a non-robust through passage. [Figure 19] FIG. 19 is a cross-sectional view of a main part of a connecting passage device in the form of a non-robust through passage. [Figure 20] FIG. 20 is an enlargement of a portion of FIG. [Figure 21] FIG. 21 is a cross-sectional view of a main part of a connecting passage device in the form of a non-robust through passage. [Figure 22] FIG. 22 is a cross-sectional view of a main portion of a connecting passage device in the form of a non-robust through passage. [Figure 23] FIG. 23 is a plan view of the first access floor. [Figure 24] FIG. 24 is a plan view of the support base and the receiver. [Figure 25]FIG. 25 is a cross-sectional view of a main part of a connecting passage device in the form of a robust through passage. [Figure 26] FIG. 26 is a cross-sectional view of a main part of a connecting passage device in the form of a robust through passage. [Figure 27] FIG. 27 is an enlarged view of a portion of FIG. [Figure 28] FIG. 28 is a cross-sectional view of a main part of a connecting passage device in the form of a robust through passage. [Figure 29] FIG. 29 is a cross-sectional view of the main part of a connecting passage device in the form of a robust through passage. [Figure 30] FIG. 30 is an enlarged view of a portion of FIG. [Figure 31] FIG. 31 is an exploded perspective view of the outer skin. [Figure 32] FIG. 32 is a plan view of the top cover. [Figure 33] 33 is an end view taken along the line XXXIII-XXXIII shown in FIG. [Figure 34] FIG. 34 is a side view of the side cover. [Figure 35] FIG. 35 is an end view taken along the line XXXV-XXXV in FIG. [Figure 36] FIG. 36 is an explanatory diagram of how the top cover and side covers fit together. [Figure 37] FIG. 37 is an explanatory diagram of the fit of the top cover and the side cover. [Figure 38] FIG. 38 is an explanatory diagram of the fit of the top cover and the side cover. [Figure 39] FIG. 39 is an exploded perspective view of a connecting passage device in the form of a bridge. [Figure 40] FIG. 40 is an exploded perspective view of a connecting passage device in the form of a bridge. [Figure 41] FIG. 41 is an exploded perspective view of the second access floor. [Figure 42] FIG. 42 is a plan view of the second access floor. [Figure 43] FIG. 43 is a vertical cross-sectional view of the second access floor. DETAILED DESCRIPTION OF THE INVENTION

[0008] [Disclosure Summary] This specification discloses the following connecting passage device. The following reference numerals in parentheses refer to Figures 1 to 43. The reference numerals in parentheses are provided to facilitate understanding of the connecting passage device, and the scope of the present invention is not limited to the examples in the drawings.

[0009] [1] A first outer wall (12L) and a second outer wall (14R) face each other. A first opening and a second opening are formed in the first outer wall (12L) and the second outer wall (14R), respectively. The first opening and the second opening face each other. The connecting passage device connecting the first opening and the second opening comprises a first case lower part (402L) attached to the first outer wall (12L) along the lower end of the first opening, a second case lower part (402R) attached to the second outer wall (14R) along the lower end of the second opening, a first holder (86L or 151L) attached on top of the first case lower part (402L), a second holder (86R or 151R) attached on top of the second case lower part (402R), and a floor plate bridged between the first holder (86L or 151L) and the second holder (86R or 151R) and supported by the first holder (86L or 151L) and the second holder (86R or 151R).

[0010] According to [1], people can move between the first opening and the second opening by walking on the crossing floor.

[0011] [2] The connecting passage device includes a first case upper part (401L) attached to the first outer wall (12L) along the upper edge of the first opening, a first case left part (403L) attached to the first outer wall (12L) along the left edge of the first opening, a first case right part (404L) attached to the first outer wall (12L) along the right edge of the first opening, a second case upper part (401R) attached to the second outer wall (14R) along the upper edge of the second opening, and a second case left part (403L) attached to the second outer wall (14R) along the left edge of the second opening. a second case right portion (404R) attached to the second outer wall (14R) along the right edge of the second opening, a flexible cylindrical first inner sheet (60L), a flexible cylindrical first outer sheet (65L), a flexible cylindrical second inner sheet (60R), and a flexible cylindrical second outer sheet (65R), and the first case lower portion, the first case upper portion, the first case left portion (403L), and the first case right portion (404L) are connected in a frame shape to surround the first opening, thereby forming a first case (40L), and The second case (40R) is formed in a groove shape so as to open toward the second outer wall (14R), and the second case lower part, the second case upper part (401R), the second case left part (403R) and the second case right part (404L) are connected in a frame shape so as to surround the second opening, thereby forming the second case (40R), and the second case (40R) is formed in a groove shape so as to open toward the first outer wall (12L), and the first inner sheet (60L) is attached to the first case (40L) inside the first case along the outer periphery of the first opening, and the first outer case (40R) is formed in a groove shape so as to open toward the first outer wall (12L). the side sheet (65L) surrounds the first inner sheet (60L) from above, below and both sides, the first outer sheet (65L) is attached to the first case (40L) along the outer periphery of the first opening inside the first case (40L), the second inner sheet (60R) is attached to the second case (40R) along the outer periphery of the second opening inside the second case (40R), and the second outer sheet (65R) surrounds the second inner sheet (60R) from above, below and both sides,The second outer sheet (65R) is attached to the second case (40R) along the outer periphery of the second opening inside the second case (40R), the first holder (86L or 151L) is attached to the first case lower part (402L) inside the first inner sheet (60L), the second holder (86R or 151R) is attached to the second case lower part (402R) inside the second inner sheet (60R), and the floor board (87 or 153) is bridged between the first holder (86L or 151L) and the second holder (86R or 151R) inside the first inner sheet (60L) and the second inner sheet (60R).

[0012] According to [2], the first inner sheet (60L) and the first outer sheet (65L) are flexible, and the first inner sheet (60L) and the first outer sheet (65L) are attached to the first case (40L) along the outer periphery of the first opening inside the first case (40L). This allows the first inner sheet (60L) and the first outer sheet (65L) to be stored inside the first case (40L). The first case (40L) prevents the first inner sheet (60L) and the first outer sheet (65L) from getting in the way. Similarly, the second inner sheet (60R) and the second outer sheet (65R) can be stored in the second case (40R), so the second case (40R) prevents the second inner sheet (60R) and the second outer sheet (65R) from getting in the way.

[0013] [3] The connecting passage device includes a first inner tooth row (61L) provided on the edge of the first inner sheet (60L), a first outer tooth row (66L) provided on the edge of the first outer sheet (65L), a second inner tooth row (61R) provided on the edge of the second inner sheet (60R), and a second outer tooth row (66R) provided on the edge of the second outer sheet (65R).

[0014] [4] The first inner tooth row (61L) engages with the second inner tooth row (61R), thereby connecting the first inner sheet (60L) to the second inner sheet (60R), and a first connecting body (60) of the first inner sheet (60L) and the second inner sheet (60R) forms a canopy, and the first outer tooth row (66L) engages with the second outer tooth row (66R), thereby connecting the first outer sheet (65L) to the second outer sheet (65R), and a second connecting body (65) of the first outer sheet (65L) and the second outer sheet (65R) forms a canopy.

[0015] According to [3] or [4], when the first inner tooth row (61L) meshes with the second inner tooth row (61R) and the first outer tooth row (66L) meshes with the second outer tooth row (66R), the space between the first connecting body (60) and the second connecting body (65) is closed. Air flow is unlikely to occur in the space, and the space inside the first connecting body (60) is likely to be insulated from the space outside the second connecting body (65).

[0016] [5] The connecting passage device includes a heat insulating material (80) filled between the first connecting body (60) and the second connecting body (65).

[0017] According to [5], the heat insulating material (80) fills the space between the first connecting body (60) and the second connecting body (65), and the heat insulating material (80) contributes to insulating the space inside the first connecting body (60) from the space outside the second connecting body (65).

[0018] [6] The first inner teeth row (61L) and the second inner teeth row (61R) can be disengaged from each other, and the first outer teeth row (66L) and the second outer teeth row (66R) can be disengaged from each other.

[0019] According to [6], the first inner sheet (60L) can be separated from the second inner sheet (60R). The first outer sheet (65L) can be separated from the second outer sheet (65R). The connecting passage device can be transformed into a form in which the first inner sheet (60L) is connected to the second inner sheet (60R), a form in which the first inner sheet (60L) is separated from the second inner sheet (60R), a form in which the first outer sheet (65L) is connected to the second outer sheet (65R), or a form in which the first outer sheet (65L) is separated from the second outer sheet (65R).

[0020] [7] The floor plate (87 or 153) is bridged between the first holder (86L or 151L) and the second holder (86R or 151R) inside the first connecting body (60) and below the first opening and the second opening.

[0021] According to [7], people can easily walk inside the first connector 60. The floorboard 87 or 153 protects the first connector 60, the heat insulating material 80, and the second connector 65 underneath.

[0022] [8] The connecting passage device includes a hard outer skin (110) that surrounds the second connecting body (65) from above and both sides, is attached to the first outer wall (12L) along the outer periphery of the first opening outside the second connecting body (65), is attached to the second outer wall (14R) along the outer periphery of the second opening outside the second connecting body (65), and bridges between the first outer wall (12L) and the second outer wall (14R) outside the second connecting body (65).

[0023] According to [8], the hard outer shell (110) surrounds the second connecting body (65) from above and both sides, so that the second connecting body (65), the heat insulating material (80) and the first connecting body (60) of the outer shell (110) are protected by the outer shell (110).

[0024] [9] The outer skin (110) is detachable from the first outer wall (12L) and the second outer wall (14R).

[0025] According to [9], the connecting passage device can be transformed into a form in which the outer shell (110) is attached and a form in which the outer shell (110) is removed.

[0026]

[10] The outer skin (110) has a top cover (120) that is bridged between the first outer wall (12L) and the second outer wall (14R) on the second connecting body, and a pair of side covers (130, 140) that are bridged between the first outer wall (12L) and the second outer wall (14R) on both sides of the connecting body, and the combination of the top cover (120) and the side covers (130, 140) forms a gate shape.

[0027] According to

[10] , the second connector (65), the heat insulating material (80), and the first connector (60) are protected by the top cover (120) and the side covers (130, 140). The outer shell (110) is easy to assemble.

[0028]

[11] The joints between the top cover (120) and the side covers (130, 140) are sealed by seals (126, 136).

[0029] According to

[11] , the seals (126, 136) prevent wind, rain, water, snow or blizzard from getting in. The seals (126, 136) prevent hot or cold air from leaking out or getting in.

[0030]

[12] The sizes of the top cover (120) and the side covers (130, 140) in the direction from the first outer wall (12L) to the second outer wall (14R) and in the opposite direction are adjustable to fit the gap between the first outer wall (12L) and the second outer wall (14R).

[0031] According to

[12] , even if the distance between the first outer wall (12L) and the second outer wall (14R) changes, the top cover (120) and the side covers (130, 140) are bridged between the first outer wall (12L) and the second outer wall (14R).

[0032]

[13] The connecting passage device includes a first cap (70L) that is detachable from the first case (40L) and is attached to the first case (40L) so as to cover the opening of the first case (40L), thereby covering the first inner sheet (60L) and the first outer sheet (65L) housed in the first case (40L) and enclosing the first opening, and a second cap (70R) that is detachable from the second case (40R) and is attached to the second case (40R) so as to cover the opening of the second case (40R), thereby covering the second inner sheet (60R) and the second outer sheet (65R) housed in the second case (40R) and enclosing the second opening.

[0033] According to

[13] , the first and second inner sheets (60L, 60R) are not in the way and are protected. The first and second outer sheets (65L, 65R) are not in the way and are protected.

[0034]

[14] When the first cap (70L) and the second cap (70R) are attached to the first case (40L) and the second case (40R), respectively, the floor plate (87 or 153) is bridged between the first holder (86L or 151L) and the second holder (86R or 151R) below the first opening and the second opening.

[0035] According to

[14] , people can easily move from the first opening to the second opening.

[0036]

[15] The connecting passage device includes a support rod (162) that is bridged between the first outer wall (12L) and the second outer wall (14R) along the edge of the floor (87 or 153) that is bridged between the first holder (86L or 151L) and the second holder (86R or 151R) and is detachable from the first outer wall (12L) and the second outer wall (14R), and a ladder (160) that is hooked onto the support rod (162) and thereby leaned against the support rod (162).

[0037] According to

[15] , one can climb up to the floorboard (87 or 153) from under the floorboard (87 or 153) using the ladder (160). From the top of the floorboard (87 or 153), one can descend to the bottom of the floorboard (87 or 153) using the ladder (160).

[0038] The features, objects, and advantages of the above-described connecting passage device will become apparent from the drawings illustrating preferred embodiments and the accompanying description.

[0039] [Embodiment] Hereinafter, embodiments will be described with reference to the drawings. Features and technical effects of the embodiments will be understood from the following detailed description and drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. Because the drawings are provided for illustrative purposes only, the scope of the present invention is not limited to the examples in the drawings.

[0040] <1. Overview of living facilities and mobile house> 1 to 4 are perspective views showing examples of use of the living facility. 1 to 4 are drawn using a perspective projection method. The living facility can be transformed into any of a first form as shown in FIG. 1, a second form as shown in FIG. 2, a third form as shown in FIG. 3, or a fourth form as shown in FIG. 4. Note that the bolt head or nut of the bolt and nut fastener in the following description may be provided with a gripping portion such as a knob, lever, tab, handle, knurled disk, or butterfly blade, and the bolt or nut may be turned by hand without a tool by pinching or grasping the gripping portion.

[0041] The living facilities include a first mobile house 1L on the left, a second mobile house 1R on the right, and a connecting passage device 30.

[0042] Mobile houses 1L and 1R are towed vehicles that do not have a power source such as an internal combustion engine or a motor. Mobile houses 1L and 1R may be trailer houses towed on public roads, or sled houses towed on snowy roads or snow-covered surfaces. Snowy roads here refer to public roads with accumulated snow. Mobile houses 1L and 1R may also be hybrid towed vehicles that can be towed not only on public roads, but also on snowy roads or snow-covered surfaces.

[0043] Mobile houses 1L and 1R may be permitted to be used continuously on public roads for a certain period of time. Mobile houses 1L and 1R may be individually able to pass Japanese vehicle inspections. That is, mobile houses 1L and 1R may be registered under the Automobile Inspection and Registration System and may be able to pass inspections conducted by the Ministry of Land, Infrastructure, Transport and Tourism of Japan. In such cases, mobile houses 1L and 1R comply with size and weight restrictions set forth in the Building Standards Act or the Road Transport Vehicle Act. For example, the width of mobile houses 1L and 1R may be within 2.5 meters, the length of mobile houses 1L and 1R may be within 12 meters, and the height of mobile houses 1L and 1R may be within 3.8 meters. By receiving special permission, mobile houses 1L and 1R may exceed the size or weight restrictions set forth in road transport vehicle safety standards.

[0044] When the residential facilities are in the first, second, or third configuration, the mobile homes 1L and 1R are parked side by side, adjacent to each other in the vehicle width direction. The first mobile home 1L is located to the left of the second mobile home 1R. The terms "left" and "right" here are not defined as viewed from the front of the mobile homes 1L and 1R, but as viewed from the driver's seat of the towing vehicle towing the mobile homes 1L and 1R. In other words, "left" and "right" are defined as viewed in the forward direction of the mobile homes 1L and 1R. The left-right direction is the vehicle width direction, the front-rear direction is the vehicle length direction, and the up-down direction is the vehicle height direction. The towing vehicle may be a car or a snowmobile.

[0045] When the residential facility is in the first, second, or third configuration, the mobile houses 1L and 1R are connected by a connecting passage device 30, and people can move between the mobile houses 1L and 1R through the connecting passage device 30. When the residential facility is in the fourth configuration, the mobile houses 1L and 1R are separated from each other, and the mobile houses 1L and 1R can be towed independently.

[0046] The first mobile house 1L has a chassis 2L and a shed 10L. The second mobile house 1R has a chassis 2R and a shed 10R. Hereinafter, the shed 10L of the first mobile house 1L will also be referred to as the first shed 10L, the shed 10R of the second mobile house 1R will also be referred to as the second shed 10R, the chassis 2L of the first mobile house 1L will also be referred to as the first chassis 2L, and the chassis 2R of the second mobile house 1R will also be referred to as the second chassis 2R.

[0047] Chassis 2L and 2R are also called bogies. The first chassis 2L has a first frame 3L and left and right wheels. The left and right wheels are attached to the left and right sides of the first frame 3L, and the first frame 3L is supported on the ground by the wheels. When the first mobile house 1L is not being towed, the first frame 3L may be supported on the ground by a stand or the like. The support can be easily removed from the first chassis 2L without tools. When the first mobile house 1L is not being towed, the wheels may be prevented from rolling by a wheel stopper. The first chassis 2L has a coupler attached to the front end of the first frame 3L. When the first mobile house 1L is being towed, the first chassis 2L is connected to a towing vehicle by the coupler.

[0048] Instead of wheels, non-powered endless tracks may be attached to the left and right sides of the first frame 3L. Instead of or in addition to wheels or tracks, sleds may be attached to the left and right sides of the first frame 3L.

[0049] The second chassis 2R is identical to the first chassis 2L. The second chassis 2R has a second stand 3R. The second chassis 2R has left and right wheels, tracks, or a sled.

[0050] The sheds 10L and 10R may be wooden houses, steel-framed houses, or container houses. The sheds 10L and 10R may have a wall structure, a frame structure, or both. The sheds 10L and 10R may be constructed using a panel construction method, a frame construction method, a frame panel construction method, a frame wall construction method, or a combination of two or more of these. The sheds 10L and 10R may be constructed using the same construction method or different construction methods. In one example, the sheds 10L and 10R are wooden houses with a wall structure assembled using a wood panel adhesive construction method. In another example, the sheds 10L and 10R are light-gauge steel-framed houses with a frame structure assembled using a prefabricated construction method.

[0051] The energy used from the production to the disposal and disposal of wood is less than the energy used from the production to the disposal and disposal of metal or concrete materials. If the 10L and 10R sheds are made of wood, they will contribute to the realization of a carbon-neutral society by reducing carbon dioxide emissions to virtually zero, and to the achievement of the Sustainable Development Goals (SDGs).

[0052] The first shed 10L has a living space inside. The first shed 10L has a floor on its bottom surface, a rear exterior wall 11L on its rear surface, a right exterior wall 12L on its right side, a front exterior wall on its front surface, a left exterior wall 14L on its left side, and a roof 15L on its top surface. The floor is laid on the first frame 3L. In one example, if the shed 10L is a wooden house assembled using a wood panel adhesive construction method, the floor, right exterior wall 12L, front exterior wall, left exterior wall 14L, rear exterior wall 11L, and roof 15L each have one or more hollow architectural wood panels. A architectural wood panel has a rectangular frame formed by assembling four wooden frames into a rectangular frame shape and wooden facings attached to one or both sides of the rectangular frame. The architectural wood panel may also have one or more wooden crosspieces attached to the rectangular frame inside. The construction wood panel may have a heat insulating material such as glass wool, rock wool, or foamed resin filled inside the rectangular frame.

[0053] The rear outer wall 11L is joined to the rear end of the floor and stands upright. The right outer wall 12L is joined to the right end of the floor and stands upright. The front outer wall is joined to the front end of the floor and stands upright. The left outer wall 14L is joined to the left end of the floor and stands upright. A first base may be provided on the first frame 3L, surrounding the periphery of the floor. If the first base is provided, the rear outer wall 11L, right outer wall 12L, front outer wall, and left outer wall 14L may be provided in an upright position on the first base. If the first base is not provided, the rear outer wall 11L, right outer wall 12L, front outer wall, and left outer wall 14L may be provided in an upright position on the outer periphery of the first frame 3L. The roof 15L is installed on top of the living space enclosed by the rear exterior wall 11L, right exterior wall 12L, front exterior wall, and left exterior wall 14L, covering the living space. The roof 15L is a single-pitch roof sloping downward to the left. The roof 15L may not be a single-pitch roof, but may also be a flat roof or a gable roof. The eaves and ridge overhang of the roof 15L are very short.

[0054] Like the first shed 10L, the second shed 10R has a floor on its bottom, a rear exterior wall 11R on its rear side, a right exterior wall 12R on its right side, a front exterior wall on its front side, a left exterior wall 14R on its left side, and a roof 15R on its top side. A second base may be installed on the second frame 3R, surrounding the periphery of the floor. If a second base is installed, the rear exterior wall 11R, right exterior wall 12R, front exterior wall, and left exterior wall 14R may be installed upright on the second base. If a second base is not installed, the rear exterior wall 11R, right exterior wall 12R, front exterior wall, and left exterior wall 14R may be installed upright on the outer periphery of the second frame 3R. The roof 15R is a shed roof sloping downward to the right. The roof 15R may not be a shed roof, but may be a flat roof or a gable roof. The eaves and gables of the 15L roof are very short.

[0055] Hereinafter, the floor of the first shed 10L will be referred to as the first floor, and the floor of the second shed 10R will be referred to as the second floor. The rear outer wall 11L of the first shed 10L will be referred to as the first rear outer wall 11L, and the rear outer wall 11R of the second shed 10R will be referred to as the second rear outer wall 11R. The right outer wall 12L of the first shed 10L will be referred to as the first right outer wall 12L, and the right outer wall 12R of the second shed 10R will be referred to as the second right outer wall 12R. The front outer wall of the first shed 10L will be referred to as the first front outer wall, and the front outer wall of the second shed 10R will be referred to as the second front outer wall. The left outer wall 14L of the first shed 10L will be referred to as the first left outer wall 14L, and the left outer wall 14R of the second shed 10R will be referred to as the second left outer wall 14R. The roof 15L of the first shed 10L is also referred to as the first roof 15L, and the roof 15R of the second shed 10R is also referred to as the second roof 15R.

[0056] The first right outer wall 12L has an opening and a door 16L, such as a hinged door, a sliding door, or a double sliding door, installed in the opening. As an example, the door 16L may be an inward-swinging door. The door 16L is spaced rearward from the front edge of the first right outer wall 12L and spaced forward from the rear edge of the first right outer wall 12L. Specifically, the door 16L is disposed midway between the front and rear edges of the first right outer wall 12L.

[0057] The second left outer wall 14R has an opening and a door 16R, such as a hinged door, a sliding door, or a double sliding door, installed in the opening. As an example, the door 16R may be an inward-swinging door. The door 16R is spaced rearward from the front edge of the second left outer wall 14R and spaced forward from the rear edge of the second left outer wall 14R. Specifically, the door 16R is disposed midway between the front and rear edges of the second left outer wall 14R.

[0058] Hereinafter, the door 16L will also be referred to as the first door 16L, and the door 16R will also be referred to as the second door 16R. Note that fittings other than doors, for example, French windows, may be installed in place of the doors 16L, 16R.

[0059] Whether the living arrangement is in the first, second, or third configuration, the mobile homes 1L and 1R are parked side by side. The first right exterior wall 12L faces the second left exterior wall 14R, and the second door 16R faces the first door 16L. A connecting passage device 30 is installed between the first door 16L and the second door 16R. People can pass between the first mobile home 1L and the connecting passage device 30 through the first door 16L, and between the second mobile home 1R and the connecting passage device 30 through the second door 16R.

[0060] <2. Connecting passage device> The type of accommodation facility is determined by the type of the connecting passage device 30.

[0061] As shown in Figure 1, when the living facility is in the first form, the connecting passage device 30 is in the form of a robust through-passage. The connecting passage device 30 in the form of a robust through-passage surrounds the space between the first door 16L and the second door 16R from above, below, and both sides. In addition, the connecting passage device 30 has thermal insulation properties to suppress the transfer of heat between its inside and outside, and is robust because it is protected by a hard outer skin.

[0062] As shown in Figure 2, when the residential equipment is in the second form, the connecting passage device 30 is in the form of a non-sturdy through passage. The connecting passage device 30 in the form of a non-sturdy through passage encloses the space between the first door 16L and the second door 16R from above, below, and both sides. Furthermore, the connecting passage device 30 has thermal insulation properties to suppress heat transfer between its inside and outside, but is not protected by a hard outer skin and is non-sturdy.

[0063] As shown in Fig. 3, when the residential facility takes the third form, the connecting passage device 30 takes the form of a bridge. The connecting passage device 30 in the form of a bridge is installed between the lower end of the first door 16L and the lower end of the second door 16R. In addition, the connecting passage device 30 opens the space between the first door 16L and the second door 16R without covering the space from above or both sides.

[0064] As shown in FIG. 4, when the residential facility is in the fourth configuration, the connecting passage device 30 is in the separated configuration. In the separated configuration, the connecting passage device 30 is separated into a first separated body 31L for the first mobile house 1L and a second separated body 31R for the second mobile house 1R. The first separated body 31L surrounds the first door 16L of the first shed 10L and is attached to the first right outer wall 12L. The second separated body 31R surrounds the first door 16L of the second shed 10R and is attached to the second left outer wall 14R. When the mobile houses 1L and 1R are parked side-by-side, the first separated body 31L faces the second separated body 31R and is symmetrical to the second separated body 31R. The separated bodies 31L and 31R are described in detail below.

[0065] <3. Separation form and separation body of the connecting passage device> FIG. 5 is a perspective view of the first separator 31L. FIG. 6 is an exploded perspective view of the first separator 31L. FIG. 7 is a perspective view of the second separator 31R. FIG. 8 is an exploded perspective view of the second separator 31R. FIG. 9 is a vertical cross-sectional view of region IX shown in FIGS. 5 and 7. FIG. 10 is a vertical cross-sectional view of region X shown in FIGS. 5 and 7. FIG. 11 is a horizontal cross-sectional view of region XI shown in FIGS. 5 and 7. FIG. 12 is an enlarged view of region XII shown in FIG. 9. FIG. 13 is an enlarged view of region XIII shown in FIG. 10. FIG. 14 is an enlarged view of region XIV shown in FIG. 11. FIG. 15 is a front view of the upper part of the first case 40L of the first separator 31L. FIG. 16 is a front view of the lower part of the first case 40L. FIG. 16 also shows a first bracket 91L and a first receiving member 4L used in the robust through-passage configuration and the non-robust through-passage configuration.

[0066] The first separate body 31L includes a first case 40L, a first inner pressing plate 50L, a first outer pressing plate 55L, a first inner sheet 60L, a first inner coupling tooth row 61L, a first inner surface fastener 63L, a first outer sheet 65L, a first outer coupling tooth row 66L, a first outer surface fastener 68L, and a first cap 70L. The second separate body 31R includes a second case 40R, a second inner pressing plate 50R, a second outer pressing plate 55R, a second inner sheet 60R, a second inner coupling tooth row 61R, a second inner surface fastener 63R, a second outer sheet 65R, a second outer coupling tooth row 66R, a second outer surface fastener 68R, and a second cap 70R.

[0067] <3-1. Case> The first case 40L may be composed of several parts or may be a single-piece molded product. The first case 40L surrounds the first door 16L of the first cabin 10L and is attached to the first right outer wall 12L. The first case 40L is formed in a groove shape that opens toward the second left outer wall 14R facing the first right outer wall 12L, and is made of a frame-shaped channel material with the bottom of the groove made convex by beading or the like.

[0068] The first case 40L has a web 41L, an inner flange 42L, an outer flange 43L, and a protrusion 44L. The web 41L forms the bottom of the groove. The web 41L is formed in a rectangular frame shape to surround the periphery of the first door 16L of the first shed 10L. The web 41L is fixed with screws or the like so that it is attached to the first right outer wall 12L of the first shed 10L around the periphery of the first door 16L of the first shed 10L. The inner flange 42L forms the inner peripheral wall of the groove. The inner flange 42L is formed in a frame shape along the inner edge of the web 41L. The inner flange 42L is bent from the inner edge of the web 41L by bending or the like, so that it stands perpendicular to the first right outer wall 12L of the first shed 10L. The outer flange 43L forms the outer peripheral wall of the groove. The outer flange 43L is formed in a frame shape along the outer edge of the web 41L. The outer flange 43L is bent from the outer edge of the web 41L by bending or the like, so that it stands perpendicular to the first right outer wall 12L of the first shed 10L. The convex portion 44L is formed in a convex shape so as to protrude from the web 41L into the groove between the inner and outer edges of the web 41L. The convex portion 44L is formed in a frame shape along the edge and outer edges of the web 41L. On the back surface of the web 41L, the back side of the convex portion 44L is concave. Therefore, the back side of the convex portion 44L forms a cavity 45L that is blocked by the first right outer wall 12L of the first shed 10L.

[0069] Inside the cavity 45L, the heads of multiple inner bolts 52L are arranged at intervals along the periphery of the first door 16L of the first shed 10L, the heads of the inner bolts 52L are fixed to the back side of the protrusion 44L by welding, and the shanks of the inner bolts 52L pass through the protrusion 44L. Inside the cavity 45L, the heads of multiple outer bolts 57L are arranged at intervals along the periphery of the first door 16L of the first shed 10L, the heads of the outer bolts 57L are fixed to the back side of the protrusion 44L by welding, and the shanks of the outer bolts 57L pass through the protrusion 44L. The row of heads of the outer bolts 57L is outside the row of heads of the inner bolts 52L.

[0070] The portion of the first case 40L that is provided along the upper edge of the first door 16L is referred to as an upper case portion 401L. The portion of the first case 40L that is provided along the lower edge of the first door 16L is referred to as a lower case portion 402L. The portion of the first case 40L that is provided along the left edge of the first door 16L when viewed from the front outside of the first door 16L is referred to as a left case portion 403L. The portion of the first case 40L that is provided along the right edge of the first door 16L when viewed from the front outside of the first door 16L is referred to as a right case portion 404L.

[0071] The second case 40R surrounds the second door 16R of the second shed 10R and is attached to the second left exterior wall 14R. The second case 40R is grooved so that it opens toward the first right exterior wall 12L facing the second left exterior wall 14R, and is made of a frame-shaped channel material with the bottom of the groove made convex by beading or the like. The second case 40R is installed in the same manner as the first case 40L. When the mobile homes 1L and 1R are parked side by side, the second case 40R faces the first case 40L and is symmetrical to the first case 40L.

[0072] The portion of the second case 40R that is provided along the upper edge of the second door 16R is referred to as the upper case 401R. The upper case 401R of the second case 40R faces the upper case 401L of the first case 40L. The portion of the second case 40R that is provided along the lower edge of the second door 16R is referred to as the lower case 402R. The lower case 402R of the second case 40R faces the lower case 402L of the first case 40L. The portion of the second case 40R that is provided along the left edge of the second door 16R when viewed from the outside front of the second door 16R is referred to as the left case 403R. The left case 403R of the second case 40R faces the right case 404L of the first case 40L. The portion of the second case 40R that is provided along the right bridge of the second door 16R when viewed from the outside front of the second door 16R is referred to as the right case 404R. The right case part 404R of the second case 40R faces the left case part 403L of the first case 40L.

[0073] <3-2. Retaining plate> The first inner pressing plate 50L may be made up of several parts or may be a one-piece molded product. In the example shown in Figure 6, the first inner pressing plate 50L is made up of four stainless steel strips.

[0074] The first inner retaining plate 50L is a stainless steel plate having a rectangular frame shape. The first inner retaining plate 50L is attached to the top surface of the protrusion 44L around the entire circumference of the protrusion 44L inside the first case 40L. The first inner retaining plate 50L is fixed to the protrusion 44L by an inner nut 51L. The inner nut 51L is tightened onto the shank of the inner bolt 52L, thereby tightening the first inner retaining plate 50L to the protrusion 44L from above. Note that the inner nut 51L and the inner bolt 52L may be interchanged. That is, the inner nut 51L may be welded to the back side of the protrusion 44L, the shank of the inner bolt 52L may pass through the protrusion 44L and be tightened onto the inner nut 51L, and the head of the inner bolt 52L may tighten the first inner retaining plate 50L to the protrusion 44L from above the first inner retaining plate 50L.

[0075] The first outer retaining plate 55L may be composed of several parts or may be a one-piece molded product. In the example shown in FIG. 6, the first outer retaining plate 55L is composed of four stainless steel strips. The first outer retaining plate 55L is attached to the top surface of the protrusion 44L around the entire circumference of the first inner retaining plate 50L. The first outer retaining plate 55L is fixed to the protrusion 44L by an outer nut 56L. When the outer nut 56L is tightened to the shank of the outer bolt 57L, the outer nut 56L tightens the first outer retaining plate 55L to the protrusion 44L from above the first outer retaining plate 55L. The outer nut 56L and the outer bolt 57L may be interchanged.

[0076] The second inner pressing plate 50R is symmetrical to the first inner pressing plate 50L. The second inner pressing plate 50R faces the first inner pressing plate 50L. Like the first inner pressing plate 50L, the second inner pressing plate 50R is fixed to the protrusion 44R by an inner nut 51R tightened onto the shank of an inner bolt 52R.

[0077] The second outer pressing plate 55R is symmetrical to the first outer pressing plate 55L. The second outer pressing plate 55R faces the first outer pressing plate 55L. Like the first outer pressing plate 55L, the second outer pressing plate 55R is fixed to the protrusion 44R by an outer nut 56R tightened onto the shaft of an outer bolt 57R.

[0078] <3-3. Seat and teeth> The inner sheets 60L, 60R and the outer sheets 65L, 65R are formed in a strip shape. The inner sheets 60L, 60R and the outer sheets 65L, 65R are made of flexible fabric so that they can be bent, folded, or rolled up. The inner sheets 60L, 60R and the outer sheets 65L, 65R are waterproof and light-blocking. However, the inner sheets 60L, 60R and the outer sheets 65L, 65R may be transparent and not light-blocking.

[0079] The inner sheets 60L, 60R and the outer sheets 65L, 65R may be water-repellent. In one example, the water-repellent properties of the inner sheets 60L, 60R and the outer sheets 65L, 65R are achieved by applying a silicone-based or fluorine-based water-repellent agent to the inner sheets 60L, 60R and the outer sheets 65L, 65R. In another example, the water-repellent properties of the inner sheets 60L, 60R and the outer sheets 65L, 65R are achieved by having fine irregularities on the surfaces of the inner sheets 60L, 60R and the outer sheets 65L, 65R. The material of the inner sheets 60L, 60R and the outer sheets 65L, 65R is, for example, polyamide, polyester, or polycotton.

[0080] The first inner sheet 60L is attached to the first right outer wall 12L along the outer periphery of the first door 16L via the first case 40L. Specifically, the first inner sheet 60L is sandwiched between the top surface of the protrusion 44L and the first inner pressing plate 50L along the entire periphery of the protrusion 44L inside the first case 40L. Here, the inner bolt 52L passes through the first inner sheet 60L and is screwed into the inner nut 51L.

[0081] The first inner sheet 60L protrudes from between the top surface of the convex portion 44L and the first inner pressing plate 50L, inside the inner peripheral edge of the first inner pressing plate 50L. The first inner sheet 60L is folded in the protruding direction of the convex portion 44L by the inner peripheral edge of the first inner pressing plate 50L. The portion of the first inner sheet 60L protruding from the inner peripheral edge of the first inner pressing plate 50L has a rectangular tubular shape. Of the portion protruding from the inner peripheral edge of the first inner pressing plate 50L, the ends in the circumferential direction overlap and are superimposed on each other. The overlapping portions are joined to each other by a first inner fastener 63L.

[0082] The first inner tooth row 61L is provided on the edge of the first inner sheet 60L. That is, the first inner tooth row 61L is provided on the edge of a portion of the first inner sheet 60L that protrudes from the inner peripheral edge of the first inner pressing plate 50L.

[0083] Similar to the first inner sheet 60L, the second inner sheet 60R is sandwiched between the top surface of the protrusion 44R and the second inner pressing plate 50R inside the second case 40R around the entire periphery of the protrusion 44R, and is folded in the protruding direction of the protrusion 44R by the inner peripheral edge of the second inner pressing plate 50R. The second inner tooth row 61R is provided on the edge of the portion of the second inner sheet 60R that protrudes from the inner peripheral edge of the second inner pressing plate 50R.

[0084] When the connecting passage device 30 is in the separated form, the first inner sheet 60L is separated from the second inner sheet 60R. When the connecting passage device 30 is in the separated form, the first inner sheet 60L is contained in an internal space 76L surrounded by the first case 40L and the first cap 70L. In the internal space 76L, the connection by the first internal fastener 63L may be released. When the connecting passage device 30 is in the separated form, the second inner sheet 60R is contained in an internal space 76R surrounded by the second case 40R and the second cap 70R. In the internal space 76R, the connection by the second internal fastener 63R may be released. When the connecting passage device 30 is in the form of a robust through passage or a non-robust through passage, the first inner tooth row 61L and the second inner tooth row 61R mesh with each other, connecting the first inner sheet 60L to the second inner sheet 60R.

[0085] The first outer sheet 65L is attached to the first right outer wall 12L, outside the first inner sheet 60L, via the first case 40L, along the outer periphery of the first door 16L. Specifically, the first outer sheet 65L is sandwiched between the top surface of the protrusion 44L and the first outer retaining plate 55L along the entire periphery of the protrusion 44L inside the first case 40L. Here, the outer bolt 57L passes through the first outer sheet 65L and is screwed into the outer nut 56L. Here, the outer bolt 57L passes through the first inner sheet 60L and is screwed into the outer nut 56L.

[0086] The first outer sheet 65L protrudes from between the top surface of the convex portion 44L and the first outer pressing plate 55L to the outside of the outer peripheral edge of the first outer pressing plate 55L. The first outer sheet 65L is folded in the protruding direction of the convex portion 44L by the outer peripheral edge of the first outer pressing plate 55L. The portion of the first outer sheet 65L protruding from the outer peripheral edge of the first outer pressing plate 55L forms a rectangular tube. The portion of the first outer sheet 65L protruding from the outer peripheral edge of the first outer pressing plate 55L and the portion of the first inner sheet 60L protruding from the inner peripheral edge of the first inner pressing plate 50L form a double tube. The circumferential ends of the portions protruding from the outer peripheral edge of the first outer pressing plate 55L overlap and are superimposed on each other. The overlapping portions are joined to each other by a first outer surface fastener 68L.

[0087] The first outer sheet 65L and the first inner sheet 60L may be integrally formed. Also, the first outer pressing plate 55L and the first inner pressing plate 50L may be integrally formed, or a component of the first outer pressing plate 55L (stainless steel band plate) and a component of the first inner pressing plate 50L (stainless steel band plate) may be integrally formed.

[0088] The first outer coupling teeth row 66L is provided on the edge of the first outer sheet 65L. In other words, the first outer coupling teeth row 66L is provided on the edge of a portion of the first outer sheet 65L that protrudes from the outer peripheral edge of the first outer pressing plate 55L.

[0089] Similar to the first outer sheet 65L, the second outer sheet 65R is sandwiched between the top surface of the protrusion 44R and the second outer pressing plate 55R inside the second case 40R around the entire periphery of the protrusion 44R, and is folded in the protruding direction of the protrusion 44R by the outer peripheral edge of the second outer pressing plate 55R. The second outer coupling teeth 66R are provided on the edge of the portion of the second outer sheet 65R that protrudes beyond the outer peripheral edge of the second outer pressing plate 55R.

[0090] When the connecting passage device 30 is in the separated form, the first outer sheet 65L is separated from the second outer sheet 65R. The first outer sheet 65L is housed in an internal space 76L surrounded by the first case 40L and the first cap 70L. The second outer sheet 65R is housed in an internal space 76R surrounded by the second case 40R and the second cap 70R. When the connecting passage device 30 is in the robust through-passage form or the non-robust through-passage form, the first outer tooth row 66L and the second outer tooth row 66R mesh with each other to connect the first outer sheet 65L to the second outer sheet 65R. In Fig. 16, the first inner sheet 60L and the first outer sheet 65L are shown in the non-robust through-passage form.

[0091] <3-4. Cap> The first cap 70L is made of a frame-shaped channel formed in a groove shape. The first cap 70L may be made of several parts or may be a one-piece molded product. In the example shown in FIG. 6, the first cap 70L is made of four stainless steel channel members that form the four sides of the frame, and two channel members overlap at the corners of the frame. Here, FIG. 17 is an exploded perspective view of the first cap 70L when the first cap 70L is made of four stainless steel channel members.

[0092] The first cap 70L has a web 71L, an inner flange 72L, and an outer flange 73L. The web 71L forms the bottom of the groove. The web 71L is formed in a frame shape. The web 71L faces the web 41L of the first case 40L. The inner flange 72L forms the inner peripheral wall of the groove. The inner flange 72L is formed in a frame shape along the inner edge of the web 71L. The inner flange 72L is bent from the inner edge of the web 71L by bending or the like, so that it stands perpendicular to the web 71L. The outer flange 73L forms the outer peripheral wall of the groove. The outer flange 73L is formed in a frame shape along the outer edge of the web 71L. The outer flange 73L is bent from the outer edge of the web 71L by bending or the like, so that it stands perpendicular to the web 71L.

[0093] As shown in Figure 17, when the first cap 70L is made up of four stainless steel channels, both longitudinal ends of the channels are closed by end plates 74L. The end plates 74L are bent perpendicular to both the outer flange 73L and the web 71L. At the corners of the frame, the inner flange 72L is spaced apart from the end plate 74L, and a rectangular notch 75L is formed between the inner flange 72L and the end plate 74L to allow two channels to overlap.

[0094] 9 to 14, the grooved opening of the first cap 70L faces the grooved opening of the first case 40L, and the first case 40L is nested inside the first cap 70L. That is, the web 71L of the first cap 70L faces the web 41L of the first case 40L, the inner flange 72L of the first cap 70L overlaps the inner flange 42L of the first case 40L on the outside of the first case 40L, and the outer flange 73L of the first cap 70L overlaps the outer flange 43L of the first case 40L on the outside of the first case 40L.

[0095] The inner flange 72L of the first cap 70L is fixed to the inner flange 42L of the first case 40L by a plurality of bolt and nut fasteners 77L. Specifically, one of the bolt head and nut of the bolt and nut fastener 77L is welded to the inner flange 42L inside the first case 40L, the bolt shank passes through the inner flanges 42L, 72L and is threaded into the nut, and the other is on the outside of the first cap 70L to tighten the inner flanges 42L, 72L toward one side. The bolt and nut fasteners 77L may be tightened and loosened by hand.

[0096] The outer flange 73L of the first cap 70L is fixed to the outer flange 43L of the first case 40L by a plurality of bolt and nut fasteners 78L. Specifically, one of the bolt head and nut of the bolt and nut fastener 78L is welded to the outer flange 43L inside the first case 40L, the bolt shank passes through the outer flanges 43L, 73L and is threaded into the nut, and the other is on the outside of the first cap 70L to tighten the outer flanges 43L, 73L toward one side. The bolt and nut fasteners 78L may be tightened and loosened by hand.

[0097] When the nuts and bolt shafts of all the bolt and nut fasteners 77L, 78L are released, the first cap 70L can be removed from the first case 40L.

[0098] By assembling the first cap 70L to the first case 40L, the grooved opening of the first case 40L is covered by the first case 40L, and the groove becomes an internal space 76L. The first inner sheet 60L and the first outer sheet 65L are accommodated in the internal space 76L. By removing the first cap 70L from the first case 40L, the grooved opening of the first case 40L is opened, and the first inner sheet 60L and the first outer sheet 65L are exposed.

[0099] The second cap 70R is provided in the same manner as the first cap 70L. When the mobile houses 1L and 1R are parked side by side, the second cap 70R faces the first cap 70L and is symmetrical to the first cap 70L.

[0100] The second cap 70R is attached to the second case 40R in the same manner as the first cap 70L is attached to the first case 40L. That is, the grooved opening of the second cap 70R faces the grooved opening of the second case 40R, and the second case 40R is nested inside the second cap 70R. The second cap 70R and the second case 40R are fixed together using a plurality of bolt and nut fasteners 77R, 78R, and the second cap 70R can be attached to and detached from the second case 40R. The bolt and nut fasteners 77R, 78R may be manually tightened and loosened.

[0101] <4. Non-robust through-passage configuration of connecting passage device> 18 to 22 are cross-sectional views of the main parts of the connecting passage device 30 having a non-robust through passage form. FIGS. 18 and 19 are vertical cross-sectional views of the same range as that of FIG. 9. FIG. 19 shows a state in which some parts have been removed. FIG. 20 is an enlarged view of a part of FIG. 19. FIG. 21 is a vertical cross-sectional view of the same range as that of FIG. 10. FIG. 22 is a horizontal cross-sectional view of the same range as that of FIG. 11.

[0102] <4-1. Sheet> When the connecting passage device 30 is in the non-robust through-passage configuration, the first cap 70L is removed from the first case 40L, and the second cap 70R is removed from the second case 40R. The first inner tooth row 61L and the second inner tooth row 61R are engaged with each other, connecting the first inner sheet 60L to the second inner sheet 60R. A connecting body 60 (hereinafter referred to as the inner hood 60) of the first inner sheet 60L and the second inner sheet 60R spans from the top surface of the protrusion 44L of the first case 40L to the top surface of the protrusion 44R of the second case 40R, and is formed in a rectangular cylindrical shape. The inner hood 60 surrounds the space between the first door 16L and the second door 16R from above, below, and both sides.

[0103] The first outer coupling tooth row 66L and the second outer coupling tooth row 66R mesh together, connecting the first outer sheet 65L to the second outer sheet 65R. A connecting body 65 of the first outer sheet 65L and the second outer sheet 65R (hereinafter referred to as the outer hood 65) is formed in a rectangular cylindrical shape and spans from the top surface of the first case 40L and the protruding portion 44L to the top surface of the protruding portion 44R of the second case 40R on the outside of the inner hood 60. The outer hood 65 surrounds the inner hood 60 from above, below, and on both sides, and the inner hood 60 and the outer hood 65 form a double cylinder.

[0104] The linear fastener having the first internal tooth row 61L and the second internal tooth row 61R may be a waterproof fastener. The linear fastener may be an airtight fastener. The linear fastener may be a fastener that is both waterproof and airtight. The same applies to the linear fastener having the first external tooth row 66L and the second external tooth row 66R.

[0105] <4-2. Insulation materials> The connecting passage device 30, which takes the form of a non-rigid through-passageway, employs an insulating material 80. The insulating material 80 is filled between the inner hood 60 and the outer hood 65. The insulating material 80 may be flexible. The insulating material 80 may be, for example, a fiber pile, a fiber board, a plastic foam board, or a carbonized cork board. The fiber pile is a pile of insulating fiber materials such as glass wool, rock wool, cellulose fiber, or wool. The fiber pile may be formed by filling a flexible container such as a thin bag or a resin bag with the fiber material and stacking it inside the container. The fiber board is formed by solidifying insulating fiber materials such as glass wool, rock wool, cellulose fiber, or wool into a flat plate using a binder. The plastic foam board is formed, for example, by polystyrene foam, urethane foam, or phenol foam. The carbonized cork board is formed by steaming cork chips under high temperature and pressure to solidify them into a flat plate.

[0106] <4-3. First access platform> Figure 23 is a plan view of the first access floor 85. The first access floor 85 shown in Figures 18, 19, 23, etc. is used in the connecting passageway system 30 in the form of a non-rigid through passageway.

[0107] The first connecting floor 85 is installed between the first right outer wall 12L and the second left outer wall 14R inside the inner hood 60 and below the first door 16L and the second door 16R. Specifically, the first connecting floor 85 is installed inside the inner hood 60 between the lower case part 402L of the first case 40L and the lower case part 402R of the second case 40R. The first connecting floor 85 covers the lower part of the inner hood 60 from above, inside the inner hood 60. The first connecting floor 85 is extendable and retractable to fit the gap between the first mobile house 1L and the second mobile house 1R. The first connecting floor 85 is detachable from the lower case part 402L of the first case 40L. The first connecting floor 85 is detachable from the lower case part 402R of the second case 40R.

[0108] The first connecting floor 85 includes a first holder 86L, ​​a second holder 86R, a first lid member 84L, a second lid member 84R, and a floor plate 87. The first holder 86L, ​​the second holder 86R, and the floor plate 87 are combined to form the first connecting floor 85 as a unit as a subassembly. The first holder 86L, ​​the second holder 86R, and the floor plate 87 may be made of metal, for example.

[0109] The first holder 86L has a flat box shape with an open top. A slot is formed in the side of the first holder 86L. A plate-shaped first lid member 84L is attached to the upper end of the first holder 86L so as to cover the opening of the first holder 86L. The first holder 86L rests on the inner flange 42L of the lower case part 402L of the first case 40L and is fixed to the inner flange 42L by two bolt and nut fasteners 88L on the left and right sides of the first case 40L. Specifically, the bolt head or nut of the bolt and nut fastener 88L is welded to the inner flange 42L inside the first case 40L, the bolt shaft passes through the inner flange 42L and the bottom of the first holder 86L and is threaded into the nut, and the bolt head or nut tightens the bottom of the first holder 86L toward the inner flange 42L inside the first holder 86L. An opening is formed in the first lid member 84L to allow the hand to reach the bolt head or nut from above the first holder 86L. A cap may be attached to the opening. The bolt and nut fasteners 88L can be tightened and loosened by hand. Here, "left and right from the sight reference" refers to the left and right determined when the first door 16L or the second door 16R is viewed from the front outside. The left and right direction from the sight reference is parallel to the width direction of the first door 16L or the second door 16R. Note that the bolt and nut fasteners 77L used to secure the first cap 70L to the first case 40L may also serve as the bolt and nut fasteners 88L.

[0110] The second holder 86R has a flat box shape with an open top. A slot is formed in the side of the second holder 86R. A plate-shaped second lid member 84R is attached to the upper end of the second holder 86R so as to cover the opening of the second holder 86R. The second holder 86R rests on the inner flange 42R of the lower case part 402R of the second case 40R and is fixed to the inner flange 42R by two bolt and nut fasteners 88R on the left and right sides of the second case 40R. Specifically, the bolt head or nut of the bolt and nut fastener 88R is welded to the inner flange 42R inside the second case 40R, the bolt shank passes through the inner flange 42R and the bottom of the second holder 86R and is threaded into the nut, and the bolt head or nut tightens the bottom of the second holder 86R toward the inner flange 42R inside the second holder 86R. The second cover member 84R has an opening formed therein so that the bolt head can be reached from above the second holder 86R. A cap may be attached to the opening. The bolt and nut fastener 88R can be tightened and loosened by hand. The bolt and nut fastener 77R for fixing the second cap 70R to the second case 40R may also serve as the bolt and nut fastener 88R.

[0111] The bolt shank of the bolt and nut fastener 88L is inserted into a cylindrical spacer 89L, and the spacer 89L is sandwiched between the first holder 86L and the inner flange 42L. The bolt shank of the bolt and nut fastener 88R is inserted into a cylindrical spacer 89R, and the spacer 89R is sandwiched between the second holder 86R and the inner flange 42R.

[0112] The spacers 89L, 89R have rubber elasticity, and may be deformed depending on the degree of tightening of the bolt and nut fasteners 88L, 88R.

[0113] The floor plate 87 is inserted into a slot formed in the side surface of the first holder 86L. This allows the floor plate 87 to be supported by the first holder 86L. The floor plate 87 is inserted into a slot formed in the side surface of the second holder 86R. This allows the floor plate 87 to be supported by the second holder 86R. The floor plate 87 spans between the first holder 86L and the second holder 86R.

[0114] The floor board 87 is pulled out from the inside of the first holder 86L toward the second holder 86R through the slot of the first holder 86L, ​​or pulled in from the second holder 86R through the slot of the first holder 86L into the inside of the first holder 86L. The floor board 87 is pulled out from the inside of the second holder 86R toward the first holder 86L through the slot of the second holder 86R, or pulled in from the first holder 86L through the slot of the second holder 86R into the inside of the second holder 86R. Therefore, with the floor board 87 spanning between the first holder 86L and the second holder 86R, the distance between the first holder 86L and the second holder 86R is adjustable. In other words, the first connecting floor 85 can be installed regardless of the distance between the first right outer wall 12L and the second left outer wall 14R.

[0115] The extension and retraction of the floor panel 87 contributes to the adjustment of the size of the first connecting floor 85 in the direction from the first right outer wall 12L toward the second left outer wall 14R and in the reverse direction. Therefore, the size of the first connecting floor 85 can be adjusted to match the distance between the first right outer wall 12L and the second left outer wall 14R.

[0116] The size of the floor board 87 in the left-right direction based on the sighting reference is smaller than the size of the slot in the left-right direction based on the sighting reference. Therefore, the position of the floor board 87 can be adjusted left-right relative to the first holder 86L based on the sighting direction, and the position can also be adjusted left-right relative to the second holder 86R based on the sighting direction. In other words, the first connecting floor 85 can be installed even if the first mobile house 1L and the second mobile house 1R are shifted forward or backward from the side-by-side parking position.

[0117] The floor plate 87 is tiltable relative to the first holder 86L around the slot of the first holder 86L. For example, the floor plate 87 is tiltable relative to the first holder 86L within a range from an angle at which the floor plate 87 hits the top of the first holder 86L inside the first holder 86L to an angle at which the floor plate 87 hits the bottom of the first holder 86L inside the first holder 86L. Similarly, the floor plate 87 is tiltable relative to the second holder 86R around the slot of the second holder 86R.

[0118] Even if there is a difference in height between the ground surface of the first mobile house 1L and the ground surface of the second mobile house 1R, and a difference in height between the first holder 86L and the second holder 86R, the tilting of the floor board 87 allows the position of the floor board 87 to match the difference in height between the first holder 86L and the second holder 86R. In other words, the first connecting floor 85 can be installed regardless of the difference in height between the ground surface of the first mobile house 1L and the ground surface of the second mobile house 1R.

[0119] The floor plate 87 is bent in a mountain shape at the center between the first holder 86L and the second holder 86R. This bending generates a component force due to the weight of the floor plate 87 that pulls the floor plate 87 into the slot. This prevents the floor plate 87 from being pulled out of the first holder 86L and the second holder 86R.

[0120] A stopper may be provided on the floor plate 87 or the first holder 86L to prevent the floor plate 87 from coming off the first holder 86L. The same may be true for the floor plate 87 and the second holder 86R.

[0121] <4-4. Supports, clamps, brackets and supports> Figure 24 is a plan view of the support base 90, two pressers 100, brackets 91L and 91R, and receivers 4L and 4R. The support base 90, pressers 100, brackets 91L and 91R, and receivers 4L and 4R shown in Figures 18 to 20 and 24 are used in a connecting passage device 30 having a non-sturdy through-passage configuration. However, the support base 90, pressers 100, and brackets 91L and 91R do not necessarily have to be used in a connecting passage device 30 having a non-sturdy through-passage configuration.

[0122] The two first receiving members 4L are fixed to the lower end of the first right outer wall 12L with a gap between them on the left and right sides based on the sight line. However, the two first receiving members 4L may also be fixed to the right side of the first frame 3L or the right side of the first base, which is a member below the lower end of the first right outer wall 12L.

[0123] The first receiver 4L may be made of metal. The first receiver 4L is made of a rectangular tube or channel material so as to have a hollow center. The first receiver 4L has an L-shaped notch 5L. The L-shaped notch 5L is cut out horizontally from the surface opposite to the joining surface joined to the lower end of the first right outer wall 12L, the right side of the chassis 2R, or the right side of the second base, toward the joining surface, and is cut out downward at the back.

[0124] The second receiver 4R is provided in the same manner as the first receiver 4L. When the mobile houses 1L and 1R are parked side by side, the second receiver 4R faces the first receiver 4L and is symmetrical to the first receiver 4L.

[0125] The two second receiving members 4R are fixed to the lower end of the second left outer wall 14R with a gap between them on the left and right sides based on the sight line. However, the two second receiving members 4R may also be fixed to the left side of the second base or the second frame 3R, which is a member below the lower end of the second left outer wall 14R.

[0126] The second receiver 4R may be made of metal. The second receiver 4R is made of a rectangular tube or channel material so as to have a hollow. The second receiver 4R has an L-shaped notch 5R. The L-shaped notch 5R is cut out horizontally from the surface opposite the joint surface joined to the lower end of the second left outer wall 14R, the left side of the second frame 3R, or the left side of the second base, toward the joint surface, and is cut out downward at the back.

[0127] The first bracket 91L may be made of metal. The first bracket 91L has an angle 92L. The first bracket 91L has two U-shaped channel members 93L, one on each side, fixed to the hanging web of the angle 92L at both ends of the angle 92L. The first bracket 91L has a bar 94L connected between the flanges of each channel member 93L. The second bracket 91R is provided in the same manner as the first bracket 91L. When the mobile houses 1L, 1R are parked side by side, the second bracket 91R faces the first bracket 91L and is symmetrical to the first bracket 91L.

[0128] The channel member 93L of the first bracket 91L embraces the first receiver 4L, and the first receiver 4L is housed inside the channel member 93L of the first bracket 91L. The bar 94L of the first bracket 91L is caught in the innermost portion of the notch 5L of the first receiver 4L. The channel member 93L is fixed to the first receiver 4L with multiple bolt and nut fasteners 95L. Specifically, one of the bolt head and nut of the bolt and nut fastener 95L is welded to the first receiver 4L inside the first receiver 4L, the bolt shank passes from the outside of the channel member 93L to the inside of the first receiver 4L and is threaded onto the nut, and the other shank is located outside the channel member 93L and tightens the first receiver 4L and the channel member 93L in one direction. The bolt and nut fasteners 95L may be tightened and loosened by hand.

[0129] With the two channel members 93L of the first bracket 91L attached to the two first receivers 4L, respectively, the angle 92L of the first bracket 91L extends left and right along the case lower portion 402L of the first case 40L based on the sight line. The hanging web of the angle 92L faces the first right outer wall 12L, the right side of the first rack 3L, or the right side of the first base. The other horizontal web of the angle 92L is parallel to the outer flange 43L at a position slightly below the outer flange 43L of the case lower portion 402L.

[0130] The second bracket 91R is similar to the first bracket 91L. That is, by attaching the two channel members of the second bracket 91R to the two second receivers 4R, respectively, the angles of the second bracket 91R extend left and right along the case lower portion 402R of the second case 40R based on the sight line.

[0131] The support base 90 is attached to the lower end of the first right outer wall 12L, the right side of the first frame 3L, or the right side of the first base via a first bracket 91L and two first receivers 4L. The support base 90 is fixed to the lower end of the second left outer wall 14R, the left side of the second frame 3R, or the left side of the second base. The support base 90 may be installed between the lower end of the first right outer wall 12L and the lower end of the second left outer wall 14R on the outside of the cylindrical outer hood 65. The support base 90 may be installed between the right side of the first frame 3L or the first base and the left side of the second frame 3R or the second base on the outside of the cylindrical outer hood 65.

[0132] The two clamps 100 are spaced apart from each other on the left and right sides based on a sight line. The clamp 100 is attached to the lower end of the first right outer wall 12L, the right side of the first frame 3L, or the right side of the first base via the first bracket 91L and two first receivers 4L. The support base 90 is fixed to the lower end of the second left outer wall 14R, the left side of the second frame 3R, or the left side of the second base. The clamp 100 may be installed inside the cylindrical outer hood 65, between the lower end of the first right outer wall 12L and the lower end of the second left outer wall 14R. The clamp 100 may be installed inside the cylindrical outer hood 65, between the right side of the first frame 3L or the first base and the left side of the second frame 3R or the second base.

[0133] The support base 90 supports the lower part of the outer canopy 65, i.e., the overlapping outer sheets 65L, 65R, from below on the outside of the outer canopy 65. The retainer 100 overlaps the lower part of the outer canopy 65, i.e., the overlapping outer sheets 65L, 65R, on the inside of the outer canopy 65. The overlapping outer sheets 65L, 65R are sandwiched between the support base 90 and the retainer 100. Holding the overlapping outer sheets 65L, 65R between the support base 90 and the retainer 100 prevents the overlapping outer sheets 65L, 65R from separating and the hook-and-loop fasteners 68L, 68R from peeling off. The support base 90 protects the outer canopy 65 and the insulation 80 from factors such as soil, snow, rainwater, animals, plants, hazards, obstacles, etc.

[0134] The support base 90 and the presser foot 100 are extendable and retractable to fit the gap between the first right outer wall 12L and the second left outer wall 14R. In other words, the sizes of the support base 90 and the presser foot 100 can be adjusted in the direction from the first right outer wall 12L toward the second left outer wall 14R and in the reverse direction to fit the gap between the first right outer wall 12L and the second left outer wall 14R.

[0135] The support base 90 and the presser foot 100 are detachable from the lower end of the first right outer wall 12L, the right side of the first frame 3L, or the right side of the first base. Specifically, the support base 90 and the presser foot 100 are detachable from the first bracket 91L. The support base 90 is detachable from the lower end of the second left outer wall 14R, the left side of the second frame 3R, or the left side of the second base. Specifically, the support base 90 and the presser foot 100 are detachable from the second bracket 91R.

[0136] The support base 90 has a first cross plate 96L and a second cross plate 96R. The first cross plate 96L and the second cross plate 96R may be made of metal.

[0137] The first cross-plate 96L rests on the angle 92L of the first bracket 91L and extends from the edge of the angle 92L toward the second bracket 91R. The first cross-plate 96L supports the first outer sheet 65L. The second cross-plate 96R rests on the angle of the second bracket 91R and extends from the edge of the angle toward the first bracket 91L. The second cross-plate 96R supports the second outer sheet 65R. The second cross-plate 96R partially overlaps the first cross-plate 96L. The extent of overlap between the second cross-plate 96R and the first cross-plate 96L is adjusted to match the distance between the first right outer wall 12L and the second left outer wall 14R. The order in which the first cross-plate 96L and the second cross-plate 96R overlap is not important.

[0138] The second cross plate 96R may be assembled in a state where it is partially overlapped with the first cross plate 96L, and the assembly consisting of these cross plates 96L, 96R, i.e., the support base 90, may be unitized as a subassembly. For example, the bolt shank of a bolt and nut fastener 99 is passed through the elongated hole 98L of the first cross plate 96L and the elongated hole 98R of the second cross plate 96R, and the bolt and nut fastener 99 loosely fastens the first cross plate 96L and the second cross plate 96R. The elongated holes 98L, 98R extend in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. Because the bolt and nut fasteners 99 are loosely tightened, the bolt and nut fasteners 99 can move relative to the first cross plate 96L and the second cross plate 96R in the direction from the first bracket 91L to the second bracket 91R and in the opposite direction, the first cross plate 96L can move relative to the second cross plate 96R in the direction from the first bracket 91L to the second bracket 91R and in the opposite direction, and the first cross plate 96L can tilt relative to the second cross plate 96R.

[0139] The ability of the first cross plate 96L to move relative to the second cross plate 96R in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction makes it possible to adjust the size of the support base 90 in that direction. Therefore, the size of the support base 90 is adjusted to match the distance between the first right outer wall 12L and the second left outer wall 14R. Note that the direction from the first bracket 91L to the second bracket 91R and the reverse direction correspond to the direction from the first right outer wall 12L to the second left outer wall 14R and the reverse direction.

[0140] Even if there is a difference in height between the ground surface of the first mobile house 1L and the ground surface of the second mobile house 1R, that difference in height is absorbed by the first crossing board 96L tilting relative to the second crossing board 96R. Therefore, regardless of the difference in height between the ground surfaces of the first mobile house 1L and the second mobile house 1R, the support base 90 can be installed so as to span between the first bracket 91L and the second bracket 91R.

[0141] The first and second cross-plates 96L and 96R support the overlapping lower portions of the cylindrical outer sheets 65L and 65R from below. The first and second cross-plates 96L and 96R function as protective plates that protect the lower portions of the outer sheets 65L and 65R and the heat insulating material 80.

[0142] The presser foot 100 is configured with a linear guide mechanism. The presser foot 100 is linearly extendable and retractable in its longitudinal direction, i.e., in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. Specifically, the presser foot 100 includes a rectangular guide plate 101 and a rectangular slide plate 102 stacked thereon. Both long sides of the slide plate 102 contact rails formed on both long sides of the guide plate 101 in an upwardly convex shape, and the slide plate 102 is guided along the long side by the rails. The slide plate 102 can move along the long side relative to the guide plate 101 by the rails, thereby enabling the presser foot 100 to extend and retract. In other words, the ability of the slide plate 102 to move relative to the guide plate 101 in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction allows the size of the presser foot 100 to be adjusted in that direction. Therefore, the size of the presser foot 100 is adjusted to match the distance between the first right outer wall 12L and the second left outer wall 14R.

[0143] The slide plate 102 may be assembled in a partially overlapping state onto the guide plate 101, and the presser foot 100 consisting of these plates 101, 102 may be unitized as a subassembly. For example, the bolt shank of a bolt and nut fastener 107 is passed through an elongated hole 106 in the slide plate 102 and a hole in the guide plate 101, and the bolt and nut fastener 107 loosely fastens the plates 101, 102. The elongated hole 106 extends in the direction of the long side of the slide plate 102, and the diameter of the hole in the guide plate 101 is slightly larger than or equal to the diameter of the bolt shank of the bolt and nut fastener 107. However, the hole in the guide plate 101 may also be an elongated hole similar to the elongated hole 106.

[0144] Because the bolt and nut fasteners 107 are loosely tightened, the slide plate 102 can move relative to the guide plate 101 in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction, and the slide plate 102 can tilt relative to the guide plate 101.

[0145] One end of the presser foot 100, i.e., the slide plate 102, is fixed to the angle 92L of the first bracket 91L with a bolt and nut fastener 105L. The slide plate 102 extends from the angle 92L of the first bracket 91L toward the angle 92R of the second bracket 91R. The bolt and nut fastener 105L fastens not only the one end of the presser foot 100 and the angle 92L, but also the first outer sheet 65L and the first cross plate 96L. Specifically, one of the bolt head and nut of the bolt and nut fastener 105L is welded to the underside of the horizontal web of the angle 92L, and the bolt shaft passes through the one end of the presser foot 100, the first outer sheet 65L, the first cross plate 96L, and the horizontal web of the angle 92L and is threaded into the nut. The other bolt fastens the one end of the presser foot 100, the first outer sheet 65L, the first cross plate 96L, and the angle 92L together. The bolt and nut fasteners 105L may be tightened and loosened by hand. When the first cross plate 96L is fixed to the angle 92L with the bolt and nut fasteners 105L, the first cross plate 96L is connected to the lower end of the first right outer wall 12L, the right side of the first frame 3L, or the right side of the first base via the first bracket 91L and the first receiving member 4L.

[0146] The other end of the retainer 100, i.e., the guide plate 101, is fixed to the angle 92R of the second bracket 91R by a bolt and nut fastener 105R. The guide plate 101 extends from the angle 92R of the second bracket 91R toward the angle 92L of the first bracket 91L. The bolt and nut fastener 105R fastens not only the other end of the retainer 100 and the angle 92R, but also the second outer sheet 65R and the second cross plate 96R. Specifically, one of the bolt head and nut of the bolt and nut fastener 105R is welded to the underside of the horizontal web of the angle 92R, and the bolt shaft passes through the other end of the retainer 100, the second outer sheet 65R, the second cross plate 96R, and the horizontal web of the angle 92R and is threaded into the nut. The other end fastens the other end of the retainer 100, the second outer sheet 65R, the second cross plate 96R, and the angle 92R toward one side. The bolt and nut fasteners 105R may be tightened and loosened by hand. When the second cross plate 96R is fixed to the angle 92R with the bolt and nut fasteners 105R, the second cross plate 96R is connected to the lower end of the second left outer wall 14R, the left side of the second frame 3R, or the left side of the second base via the second bracket 91R and the second receiver 4R.

[0147] The bolt and nut fasteners 105L may be tightened with a slight or certain degree of looseness. This allows the inclination of the first cross-plate 96L and the slide plate 102 to be adjusted. The bolt and nut fasteners 105R may be tightened with a slight or certain degree of looseness. This allows the inclination of the second cross-plate 96R and the guide plate 101 to be adjusted. If the inclination of the first cross-plate 96L, the second cross-plate 96R, the guide plate 101, and the slide plate 102 is adjustable, the second cross-plate 96R, the first cross-plate 96L, the outer sheets 65L and 65R, the guide plate 101, and the slide plate 102 can be securely stacked even if there is a difference in height between the ground surface of the first mobile house 1L and the ground surface of the second mobile house 1R.

[0148] The position of the first cross plate 96L can be adjusted in the left-right direction relative to the angle 92L using a find reference. Specifically, the bolt shaft of the bolt and nut fastener 105L is passed through an elongated hole 97L formed in the first cross plate 96L, and the elongated hole 97L extends in the direction of the long side of the first cross plate 96L, that is, in the left-right direction using a find reference.

[0149] The position of the slide plate 102 can be adjusted in the long side direction of the slide plate 102 relative to the angle 92L, and the rotation angle around the bolt axis of the bolt and nut fastener 105L can also be adjusted. Specifically, the bolt axis of the bolt and nut fastener 105L is passed through an elongated hole 103 formed in the slide plate 102, and the elongated hole 103 extends in the long side direction of the slide plate 102. The extension direction of the elongated hole 103 intersects with the extension direction of the elongated hole 97L.

[0150] The position of the second cross plate 96R can be adjusted in the left-right direction relative to the angle 92R using the find reference. Specifically, the bolt shaft of the bolt and nut fastener 105R is passed through an elongated hole 97R formed in the second cross plate 96R, and the elongated hole 97R extends in the direction of the long side of the second cross plate 96R, that is, in the left-right direction using the find reference.

[0151] The position of the guide plate 101 can be adjusted in the long side direction of the guide plate 101 relative to the angle 92R, and the rotation angle around the bolt shaft of the bolt nut fastener 105R can also be adjusted. Specifically, the bolt shaft of the bolt nut fastener 105R is passed through an elongated hole 104 formed in the guide plate 101, and the elongated hole 104 extends in the long side direction of the slide plate 102. The extension direction of the elongated hole 104 intersects with the extension direction of the elongated hole 97R.

[0152] The oblong holes 97L, 97R, 103, and 104 contribute to improving the ease of assembling the support base 90. That is, the support base 90 can be installed regardless of the relative positions of the mobile houses 1R and 1L in the direction along the horizontal plane.

[0153] <5. Transformation from a separate form to a non-robust through-passage form> The method for transforming the connecting passageway device 30 from the separated configuration to the non-rigid through passageway configuration will be described in order of steps. The order of steps in the following description may be changed.

[0154] (1) First, the mobile houses 1L and 1R are parked side by side. The first mobile house 1L and the second mobile house 1R may be shifted forward or backward. A certain degree of difference in height between the ground surface of the first mobile house 1L and the ground surface of the second mobile house 1R is permitted. A certain degree of distance is also permitted between the first right outer wall 12L and the second left outer wall 14R. A certain degree of parallelism between the first right outer wall 12L and the second left outer wall 14R is also permitted.

[0155] (2) Loosen all of the bolt and nut fasteners 77L, 78L by hand or with a tool, and remove the nuts of the bolt and nut fasteners 77L, 78L from the bolt shafts. Remove the first cap 70L from the first case 40L and remove the first cap 70L. This exposes the first inner sheet 60L and the first outer sheet 65L inside the first case 40L.

[0156] (3) Loosen all of the bolt and nut fasteners 77R, 78R by hand or with a tool, and remove the nuts of the bolt and nut fasteners 77R, 78R from the bolt shafts. Remove the second cap 70R from the second case 40R and remove the second cap 70R. This exposes the second inner sheet 60R and the second outer sheet 65R inside the second case 40R.

[0157] (4) The channel member 93L of the first bracket 91L is assembled to the first receiver 4L so that the channel member 93L of the first bracket 91L embraces the first receiver 4L. During this process, the bar 94L of the first bracket 91L is inserted into the notch 5L of the first receiver 4L and the bar 94L is hooked into the innermost part of the notch 5L. The bolt and nut fasteners 95L are tightened with a tool or by hand to secure the channel member 93L to the first receiver 4L with the bolt and nut fasteners 95L. By attaching the two channel members 93L to the two first receivers 4L in this manner, the angle member 92L of the first bracket 91L is installed between these first receivers 4L and extends left and right along the lower case part 402L of the first case 40L based on the sight line.

[0158] (5) Similar to the first bracket 91L, the second bracket 91R is also installed between the two second receiving members 4R.

[0159] (6) Place the first cross plate 96L on the angle 92L of the first bracket 91L, and place the second cross plate 96R on the angle of the second bracket 91R and the first cross plate 96L. This causes the subassembly consisting of the first cross plate 96L and the second cross plate 96R to span between the first bracket 91L and the second bracket 91R. At this time, align the elongated hole 97L of the first cross plate 96L with the through hole in the horizontal flange of the angle 92L, and align the elongated hole 97R of the second cross plate 96R with the through hole in the horizontal flange of the angle 92R.

[0160] (7) The first inner sheet 60L and the first outer sheet 65L are spread outward from the first case 40L, and the second inner sheet 60R and the second outer sheet 65R are spread outward from the second case 40R.

[0161] (8) The first outer tooth row 66L and the second outer tooth row 66R are meshed together. That is, the linear fastener having the first outer tooth row 66L and the second outer tooth row 66R is closed. This connects the first outer sheet 65L to the second outer sheet 65R.

[0162] (9) The overlapping portions of the outer sheets 65L and 65R are joined together by hook-and-loop fasteners 68L and 68R.

[0163] (10) By placing the retainer 100 on the outer sheets 65L, 65R, the outer sheets 65L, 65R are sandwiched between the retainer 100 and the cross plates 96L, 96R. At this time, the elongated hole 103 of the retainer 100 is aligned with the through hole of the horizontal flange of the angle 92L, and the elongated hole 104 of the retainer 100 is aligned with the through hole of the horizontal flange of the angle 92R. Conversely, the elongated hole 104 of the retainer 100 may be aligned with the through hole of the horizontal flange of the angle 92L, and the elongated hole 103 of the retainer 100 may be aligned with the through hole of the horizontal flange of the angle 92R.

[0164] (11) The bolt shank of the bolt and nut fastener 105L is passed through the elongated hole 103 of the presser foot 100, the hole in the first outer sheet 65L, the elongated hole 97L of the first cross plate 96L, and the through-hole in the horizontal flange of the angle 92L. The bolt and nut fastener 105L is then tightened with a tool or by hand to fasten the presser foot 100, the first outer sheet 65L, the first cross plate 96L, and the horizontal flange of the angle 92L together with the bolt and nut fastener 105L. Note that the bolt head of the bolt and nut fastener 105L may be welded to the horizontal flange of the angle 92L in advance, with the bolt shank of the bolt and nut fastener 105L passing through the horizontal flange of the angle 92L.

[0165] (12) The bolt shank of the bolt and nut fastener 105R is passed through the elongated hole 104 of the presser foot 100, the hole in the second outer sheet 65R, the elongated hole 97R of the second cross plate 96R, and the through-hole in the horizontal flange of the angle 92R. Then, the bolt and nut fastener 105R is tightened with a tool or by hand to fasten the presser foot 100, the second outer sheet 65R, the second cross plate 96R, and the horizontal flange of the angle 92R together with the bolt and nut fastener 105R. Note that the bolt head of the bolt and nut fastener 105R may be welded to the horizontal flange of the angle 92R in advance, with the bolt shank of the bolt and nut fastener 105R passing through the horizontal flange of the angle 92R.

[0166] (13) Since the linear fastener having the first inner tooth row 61L and the second inner tooth row 61R is open, the insulating material 80 is passed between the first inner tooth row 61L and the second inner tooth row 61R, and the insulating material 80 is filled between the outer sheets 65L, 65R and the inner sheets 60L, 60R.

[0167] (14) The first inner teeth row 61L and the second inner teeth row 61R are meshed together. That is, the linear fastener having the first inner teeth row 61L and the second inner teeth row 61R is closed. This connects the first inner sheet 60L to the second inner sheet 60R.

[0168] (15) Inside the inner hood 60 consisting of the inner sheets 60L, 60R, the first connecting floor 85 is laid between the lower case part 402L of the first case 40L and the lower case part 402R of the second case 40R. Specifically, this is as follows.

[0169] (16) A spacer 89L is sandwiched between the first holder 86L of the first connecting floor 85 and the inner flange 42L of the case lower part 402L of the first case 40L, and the first holder 86L is placed on the inner flange 42L via the spacer 89L. At the same time, a spacer 89R is sandwiched between the second holder 86R and the inner flange 42R of the case lower part 402R of the second case 40R, and the second holder 86R is placed on the inner flange 42R via the spacer 89R. At this point, the floor plate 87 is assembled to the holders 86L, ​​86R and the lid members 84L, 84R.

[0170] (17) The bolt and nut fasteners 88L are tightened with a tool or by hand to fix the first holder 86L to the inner flange 42L by the bolt and nut fasteners 88L. The bolt and nut fasteners 88R are tightened with a tool or by hand to fix the second holder 86R to the inner flange 42R by the bolt and nut fasteners 88R.

[0171] (18) A cap is attached to the opening formed in the top of the first holder 86L. A cap is attached to the opening formed in the top of the second holder 86R.

[0172] <6. Transformation from a non-robust through-passage form to a separate form> The method for transforming the connecting passageway device 30 from the non-rigid through passageway configuration to the separated configuration will be described in order of steps. The order of steps in the following description may be changed.

[0173] (1A) Remove the cap from the opening at the top of the first holder 86L, ​​and remove the cap from the opening at the top of the second holder 86R.

[0174] (2A) The bolt and nut fasteners 88L are loosened with a tool or by hand to remove the first holder 86L from the inner flange 42L. The bolt and nut fasteners 88R are loosened with a tool or by hand to remove the second holder 86R from the inner flange 42R. The first connecting floor 85 and the spacers 89L and 89R are removed.

[0175] (3A) The linear fastener having the first inner teeth row 61L and the second inner teeth row 61R is opened to release the engagement between the first inner teeth row 61L and the second inner teeth row 61R, thereby separating the first inner sheet 60L from the second inner sheet 60R.

[0176] (4A) The heat insulating material 80 is taken out from between the outer sheets 65L, 65R and the inner sheets 60L, 60R, and the heat insulating material 80 is removed.

[0177] (5A) The bolt and nut fasteners 105L and 105R are loosened by a tool or by hand, and the retainer 100 is removed.

[0178] (6A) The linear fastener having the first outer tooth row 66L and the second outer tooth row 66R is opened to release the engagement between the first outer tooth row 66L and the second outer tooth row 66R, thereby separating the first outer sheet 65L from the second outer sheet 65R.

[0179] (7A) Remove gangplanks 96L and 96R.

[0180] (8A) The bolt and nut fastener 95L is loosened with a tool or by hand to release the mutual fixation between the channel member 93L and the first receiver 4L. The first bracket 91L is removed. In other words, the bar 94L of the first bracket 91L is removed from the notch 5L of the first receiver 4L, and the channel member 93L is removed from the first receiver 4L.

[0181] (9A) The bolt and nut fastener 95R is loosened with a tool or by hand to release the mutual fastening of the channel member 93R and the second receiver 4R. The second bracket 91R is removed. In other words, the bar 94R of the second bracket 91R is removed from the notch 5R of the second receiver 4R, and the channel member 93R is removed from the first receiver 4R.

[0182] (10A) The first inner sheet 60L and the first outer sheet 65L are housed in the first case 40L.

[0183] (11A) The groove of the first cap 70L is aligned with the groove of the first case 40L, and the first case 40L is covered with the first cap 70L. At this time, the first case 40L is placed inside the first cap 70L.

[0184] (12A) The bolt and nut fasteners 77L and 78L are tightened by hand or with a tool to fix the first cap 70L to the first case 40L by the bolt and nut fasteners 77L and 78L.

[0185] (13A) The second inner sheet 60R and the second outer sheet 65R are stored in the second case 40R.

[0186] (14A) The groove of the second cap 70R faces the groove of the second case 40R, and the second case 40R is covered with the second cap 70R. At this time, the second case 40R is placed inside the second cap 70R.

[0187] (15A) The bolt and nut fasteners 77R and 78R are tightened by hand or with a tool to fix the second cap 70R to the second case 40R by the bolt and nut fasteners 77R and 78R.

[0188] <7. Robust Passage Form> 25 to 30 are cross-sectional views of the main part of the connecting passage device 30 having a robust through-passage configuration. FIGS. 25 and 26 are vertical cross-sectional views of the same range as that of FIG. 10. FIG. 26 shows a state in which some parts have been removed. FIG. 27 is an enlarged view of a part of FIG. 25. FIGS. 28 and 29 are vertical cross-sectional views of the same range as that of FIG. 11. FIG. 29 shows a state in which some parts have been removed. FIG. 30 is an enlarged view of a part of FIG. 28.

[0189] <7-1. Sheets and heat insulating materials> As in the case where the connecting passage device 30 has a non-robust through-passage configuration, even when the connecting passage device 30 has a robust through-passage configuration, the first inner sheet 60L is connected to the second inner sheet 60R by the inner coupling tooth rows 61L, 61R, the first outer sheet 65L is connected to the second outer sheet 65R by the outer coupling tooth rows 66L, 66R, and the heat insulating material 80 is filled between the inner hood 60 and the outer hood 65. Of course, the first cap 70L is removed from the first case 40L, and the second cap 70R is removed from the second case 40R.

[0190] <7-2. Gate> As in the case where the connecting passage device 30 takes the form of a non-robust through passage, even when the connecting passage device 30 takes the form of a robust through passage, the first connecting floor 85 is installed inside the inner hood 60 between the lower case 402L of the first case 40L and the lower case 402R of the second case 40R.

[0191] <7-3. Support stand> As in the case where the connecting passage device 30 is in the form of a non-robust through passage, even when the connecting passage device 30 is in the form of a robust through passage, the support base 90 is attached to the receivers 4L, 4R and is installed between the first receiver 4L and the second receiver 4R.

[0192] <7-4. Outer skin> The connecting passage device 30 in the form of a robust through passage employs a stainless steel outer skin 110 as shown in Fig. 31. The outer skin 110 covers the outer hood 65 from above, and also covers the outer hood 65 from the left and right sides of the outer hood 65 in a sight line. The outer skin 110 protects the outer hood 65 and the heat insulating material 80 from factors such as soil, snow, rainwater, animals, plants, dangerous objects, obstacles, etc.

[0193] The outer shell 110 includes a top cover 120 and side covers 130 and 140. The top cover 120 is a subassembly formed by combining its constituent parts. The same is true for the side covers 130 and 140.

[0194] The top cover 120 is installed on the outer hood 65 between the upper case part 401L of the first case 40L and the upper case part 401R of the second case 40R. The top cover 120 covers the upper part of the outer hood 65 from above. The top cover 120 is expandable and contractable to fit the gap between the first right outer wall 12L and the second left outer wall 14R. The top cover 120 is detachable from the upper case part 401L of the first case 40L. The top cover 120 is detachable from the upper case part 401R of the second case 40R.

[0195] The side cover 130 is installed on one side of the outer hood 65 between the left case part 403L of the first case 40L and the right case part 404R of the second case 40R. The side cover 130 covers one side of the outer hood 65 from that side. The side cover 130 is expandable and contractable to fit the gap between the first right outer wall 12L and the second left outer wall 14R. The side cover 130 is detachable from the left case part 403L of the first case 40L. The side cover 130 is detachable from the right case part 404R of the second case 40R.

[0196] The side cover 140 is installed between the case right part 404L of the first case 40L and the case left part 403R of the second case 40R on the other side of the outer hood 65. The side cover 140 covers the other side of the outer hood 65 from its side. The side cover 140 is expandable and contractable to fit the gap between the first right outer wall 12L and the second left outer wall 14R. The side cover 140 is detachable from the case right part 404L of the first case 40L. The side cover 140 is detachable from the case left part 403R of the second case 40R.

[0197] The combination of the top cover 120 and the side covers 130, 140 forms a gate shape, that is, an inverted U. At the corners of the combination of the top cover 120 and the side covers 130, 140, the gap between the top cover 120 and the side cover 130 is sealed, and the gap between the top cover 120 and the side cover 140 is also sealed.

[0198] <7-4-1. Top cover> Fig. 32 is a plan view of the top cover 120. Fig. 33 is an end view taken along the line XXXIII-XXXIII shown in Fig. 32.

[0199] As shown in Figures 25 to 27 and 31 to 33, the top cover 120 has a first cover plate 121L, a pair of first flanges 122L, a second cover plate 121R, a pair of second flanges 122R, a plurality of linear guide mechanisms 123, a first rail 124L, a first slider 125L, a second rail 124R, a second slider 125R, a pair of seals 126, and a plurality of handles 127, etc.

[0200] The covering plates 121L, 121R are formed in the shape of strips. These covering plates 121L, 121R are stacked with their short sides shifted from each other. A first flange 122L is formed on the short side of the first covering plate 121L along that short side. The first flange 122L is bent perpendicular to the first covering plate 121L at the short side of the first covering plate 121L, thereby hanging down from the short side of the first covering plate 121L. The second flange 122R is bent perpendicular to the second covering plate 121R at the short side of the second covering plate 121R, thereby hanging down from the short side of the second covering plate 121R. The first flange 122L partially overlaps the second flange 122R.

[0201] The seal 126 is attached to the flange 122L on the inside of the flanges 122L and 122R. The seal 126 is made of, for example, silicone rubber. The handle 127 is attached to the front of the cover plates 121L and 121R.

[0202] A first rail 124L is provided on the back of the first covering plate 121L along the long side of the first covering plate 121L. The first slider 125L is attached to the first rail 124L behind the first covering plate 121L. The first slider 125L is slidable along the long side of the first covering plate 121L relative to the first rail 124L.

[0203] A second rail 124R is provided on the rear side of the second covering plate 121R along the long side of the second covering plate 121R. The second slider 125R is attached to the second rail 124R behind the second covering plate 121R and is slidable along the long side of the second covering plate 121R relative to the second rail 124R.

[0204] A plurality of linear guide mechanisms 123 are arranged at intervals in the long side direction of the covering plates 121L, 121R on the backs of the covering plates 121L, 121R. These linear guide mechanisms 123 are thin. Each linear guide mechanism 123 has a flat, rectangular cylindrical guide body and a band-shaped guided body that is housed in the guide section and is slidable in the axial direction of the guide body relative to the guide body. The linear guide mechanism 123 expands and contracts linearly as the guide body slides in the axial direction of the guide body with the guided body. The linear guide mechanism 123 is arranged so that the axial direction of the guide body is parallel to the short sides of the covering plates 121L, 121R. One of the guide body and the guided body is connected to the first covering plate 121L, and the other is connected to the second covering plate 121R. Therefore, the linear guide mechanism 123 extends and contracts to guide the second cover plate 121R and the second flange 122R in the short side direction relative to the first cover plate 121L and the first flange 122L. Such guidance makes it possible to adjust the size of the top cover 120 in the short side direction of the cover plates 121L and 121R.

[0205] The front surfaces of the cover plates 121L, 121R of the top cover 120 face up on the case upper parts 401L, 401R of the cases 40L, 40R, and the back surfaces of the cover plates 121L, 121R face up. The first slider 125L of the top cover 120 rests on the outer flange 43L of the case upper part 401L of the first case 40L, and the second slider 125R of the top cover 120 rests on the outer flange 43R of the case upper part 401R of the second case 40R. The assembly of the cover plates 121L, 121R is bridged between the outer flanges 43L and 43R. The size of the assembly in the short side direction of the cover plates 121L, 121R is adjusted to match the distance between the first right outer wall 12L and the second left outer wall 14R. The positions of the sliders 125L, 125R in the long-side direction of the covering plates 121L, 121R, that is, the relative positions of the sliders 125L, 125R with respect to the covering plates 121L, 121R, are adjusted according to the front-to-rear displacement of the mobile houses 1L, 1R.

[0206] The case upper portion 401L of the case 40L is disposed between the pair of first flanges 122L, and the case upper portion 401R of the case 40R is disposed between the pair of second flanges 122R.

[0207] The first slider 125L is fixed to the outer flange 43L by a plurality of bolt and nut fasteners 128L. Specifically, one of the bolt head and nut of each bolt and nut fastener 128L is welded to the top surface of the first slider 125L, the bolt shank passes through the outer flange 43L and the first slider 125L and is threaded onto the nut, and the other shank is below the outer flange 43L and tightens the outer flange 43L and the first slider 125L toward one side. The bolt and nut fasteners 128L may be tightened and loosened by hand. The bolt shank of each bolt and nut fastener 128L may be inserted into a cylindrical spacer 129L, and the spacer 129L may be sandwiched between the outer flange 43L and the first slider 125L.

[0208] The second slider 125R is fixed to the outer flange 43R by a plurality of bolt and nut fasteners 128R. Specifically, one of the bolt head and nut of the bolt and nut fastener 128R is welded to the upper surface of the second slider 125R, the bolt shank passes through the outer flange 43R and the second slider 125R and is threaded onto the nut, and the other shank is below the outer flange 43R and tightens the outer flange 43R and the second slider 125R toward one side. The bolt and nut fasteners 128R may be tightened and loosened by hand. The bolt shank of the bolt and nut fastener 128R may be inserted into a cylindrical spacer 129R, and the spacer 129R may be sandwiched between the outer flange 43R and the second slider 125R.

[0209] <7-4-2. Side cover> Fig. 34 is a side view of the side cover 130. Fig. 35 is a cross-sectional view taken along line XXXV-XXXV shown in Fig. 34.

[0210] As shown in Figures 28 to 31 and Figures 34 to 35, the side cover 130 has a first cover plate 131L, a second cover plate 131R, multiple linear guide mechanisms 133, a first rail 134L, a first slider 135L, a second rail 134R, a second slider 135R, a seal 136, and multiple handles 137, etc.

[0211] The cover plates 131L and 131R are formed in the shape of strips, and are stacked one on top of the other with a shift in the direction of their short sides.

[0212] The seal 136 is disposed on the upper ends of the cover plates 131L and 132R, and the lower end of the seal 136 is fixed to the upper end of the cover plate 131L. The seal 136 is made of, for example, silicone rubber. The handle 137 is attached to the back of the cover plates 131L and 131R.

[0213] A first rail 134L is provided on the back of the first covering plate 131L along the long side of the first covering plate 131L. The first slider 135L is attached to the first rail 134L behind the first covering plate 131L. The first slider 135L is slidable along the long side of the first covering plate 131L relative to the first rail 134L.

[0214] A second rail 134R is provided on the rear side of the second covering plate 131R along the long side of the second covering plate 131R. A second slider 135R is attached to the second rail 134R behind the second covering plate 131R and is slidable along the long side of the second covering plate 131R relative to the second rail 134R.

[0215] Multiple linear guide mechanisms 133 are arranged at intervals along the long sides of the covering plates 131L and 131R on the backs of the covering plates 131L and 131R. These linear guide mechanisms 133 are thin. Each linear guide mechanism 133 has a flat, rectangular cylindrical guide body and a band-shaped guided body that is housed in the guide section and is slidable in the axial direction of the guide body relative to the guide body. The linear guide mechanism 133 linearly expands and contracts as the guide body slides along the axial direction of the guide body with the guided body. The linear guide mechanism 133 is arranged so that the axial direction of the guide body is parallel to the short sides of the covering plates 131L and 131R. One of the guide body and the guided body is connected to the first covering plate 131L, and the other is connected to the second covering plate 131R. Therefore, the linear guide mechanism 133 expands and contracts to guide the second covering plate 131R in the short side direction relative to the first covering plate 131L. Such a guide makes it possible to adjust the size of the assembly in the direction of the short sides of the cover plates 131L and 131R.

[0216] The side cover 130 is leaned against the left case portion 403L and the right case portion 404R of the cases 40L, 40R from the sides of the left case portion 403L and the right case portion 404R. Here, a base 48L extends leftward from the lower end of the outer flange 43L of the left case portion 403L of the first case 40L as a sight reference, and the lower end of the side cover 130 rests on the base 48L. Similarly, a base 48R extends rightward from the lower end of the outer flange 43R of the right case portion 404L of the second case 40R as a sight reference, and the lower end of the side cover 130 rests on the base 48R.

[0217] The front surfaces of the cover plates 131L, 131R of the side cover 130 face outward from the cases 40L, 40R, and the back surfaces of the cover plates 131L, 131R face inward from the cases 40L, 40R. The first slider 135L of the side cover 130 abuts against the outer flange 43L on the case left part 403L of the first case 40L, and the second slider 135R of the side cover 130 abuts against the outer flange 43R on the case right part 404R of the second case 40R. The assembly of the cover plates 131L, 131R is bridged between the outer flanges 43L and 43R. The size of the assembly in the short side direction of the cover plates 131L, 131R is adjusted to match the distance between the first right outer wall 12L and the second left outer wall 14R. The positions of the sliders 135L, 135R in the long side direction of the covering plates 131L, 131R, i.e., the relative positions of the sliders 135L, 135R to the covering plates 131L, 131R, are adjusted according to the difference in elevation between the ground surface of the first mobile house 1L and the ground surface of the second mobile house 1R, i.e., the difference in elevation between the first case 40L and the second case 40R.

[0218] The first slider 135L is fixed to the outer flange 43L by a plurality of bolt and nut fasteners 138L. Specifically, one of the bolt head and nut of the bolt and nut fastener 138L is welded to the first slider 135L, the bolt shank passes through the outer flange 43L and the first slider 135L and is threaded onto the nut, and the other shank is located inside the outer flange 43L to tighten the outer flange 43L and the first slider 135L toward one side. The bolt and nut fasteners 138L may be tightened and loosened by hand. The bolt shank of the bolt and nut fastener 138L may be inserted into a cylindrical spacer 129L, and the spacer 129L may be sandwiched between the outer flange 43L and the first slider 135L.

[0219] The second slider 135R is fixed to the outer flange 43R by a plurality of bolt and nut fasteners 138R. Specifically, one of the bolt head and nut of the bolt and nut fastener 138R is welded to the second slider 135R, the bolt shank passes through the outer flange 43R and the second slider 135R and is threaded onto the nut, and the other shank is placed below the outer flange 43R to tighten the outer flange 43R and the second slider 135R toward one side. The bolt and nut fasteners 138R may be tightened and loosened by hand. The bolt shank of the bolt and nut fastener 138R may be inserted into a cylindrical spacer 129R, and the spacer 129R may be sandwiched between the outer flange 43R and the second slider 135R.

[0220] 36 to 38 are explanatory diagrams of the fit of the top cover 120 and the side cover 130. The seal 136 is inserted from below the top cover 120 between the case upper parts 401L, 401R of the cases 40L, 40R and the flanges 122L, 122R. The seal 136 is sandwiched between the seal 126 and the outer flanges 43L, 43R. These seals 126, 136 close the gap between the case upper parts 401L, 401R of the cases 40L, 40R and the flanges 122L, 122R.

[0221] The side cover 130 and the side cover 140 face each other with the cases 40L, 40R placed between them. The side cover 140 is symmetrical to the side cover 130. The attachment of the side cover 140 to the outer flanges 43L, 43R is the same as the attachment of the side cover 130 to the outer flanges 43L, 43R.

[0222] <8. Transformation from a separate form to a robust through-passage form> The method for transforming the connecting passageway device 30 from the separated configuration to the robust through-passage configuration will be described in order of steps. The order of steps in the following description may be changed.

[0223] The steps (1) to (12) are carried out in the same manner as when the connecting passage device 30 is transformed from the separated form to the non-robust through-passage form.

[0224] (13B) Place the bottom end of the side cover 130 on the bases 48L, 48R, and lean the side cover 130 against the outer flanges 43L, 43R of the left case part 403L and the right case part 404R of the case 40L, 40R. At this time, the front of the cover plates 131L, 131R of the side cover 130 faces the outside of the case 40L, 40R, and the back of the cover plates 131L, 131R faces the inside of the case 40L, 40R.

[0225] (14B) The bolt and nut fasteners 138L are tightened with a tool or by hand to fix the first slider 135L of the side cover 130 to the outer flange 43L of the first case 40L with the bolt and nut fasteners 138L. The bolt and nut fasteners 138R are tightened with a tool or by hand to fix the second slider 135R to the outer flange 43R of the second case 40R with the bolt and nut fasteners 138R.

[0226] (15B) Install the side cover 140 in the same manner as installing the side cover 130.

[0227] (16B) The top cover 120 is placed over the upper case portions 401L, 401R of the cases 40L, 40R. Specifically, the front of the cover plates 121L, 121R of the top cover 120 is facing upward, the back of the cover plates 121L, 121R is facing upward, the first slider 125L is placed on the outer flange 43L of the upper case portion 401L of the first case 40L, and the second slider 125R is placed on the outer flange 43R of the upper case portion 401R of the second case 40R. At this time, the seal 136 of the side cover 130 is inserted between the upper case portions 401L, 401R and the flanges 122L, 122R of the cases 40L, 40R, and the seal 136 is sandwiched between the seal 126 and the outer flanges 43L, 43R.

[0228] (17B) The bolt and nut fasteners 128L are tightened with a tool or by hand to fix the first slider 125L of the top cover 120 to the outer flange 43L of the first case 40L with the bolt and nut fasteners 128L. The bolt and nut fasteners 128R are tightened with a tool or by hand to fix the second slider 125R to the outer flange 43R of the second case 40R with the bolt and nut fasteners 128R.

[0229] The steps (13) to (17) are carried out in the same manner as when the connecting passage device 30 is transformed from the separated form to the non-robust through-passage form.

[0230] The connecting passage device 30 may be transformed from the separated configuration to the non-robust through-passage configuration and then to the robust through-passage configuration.

[0231] <9. Transformation from a robust through-passage form to a separate form> The method for transforming the connecting passageway device 30 from the rigid through-passage configuration to the separated configuration will be described in the order of steps, although the order of steps in the following description may be changed.

[0232] The steps (1A) to (9A) are carried out in the same manner as when the connecting passage device 30 is transformed from the non-robust through-passage form to the separated form.

[0233] (10C) Bolt and nut fasteners 128L and 128R are loosened with a tool or by hand, and top cover 120 is removed. Bolt and nut fastener 138L is loosened with a tool or by hand, and bolt and nut fastener 138R is loosened with a tool or by hand, and side cover 130 is removed. Side cover 140 is also removed in the same manner.

[0234] Steps (10A) to (15A) are carried out in the same manner as when the connecting passage device 30 is transformed from the non-robust through-passage configuration to the separated configuration.

[0235] <10. Bridge form> Figures 39 and 40 are exploded perspective views of the connecting passage device 30 in the form of a bridge. Figure 41 is an exploded perspective view of the second access floor 150. Figure 42 is a plan view of the second access floor 150. Figure 43 is a vertical cross-sectional view of the second access floor 150.

[0236] When the second access floor 150 and the ladder 160 are assembled to the connecting passage device 30 in the separated form, the connecting passage device 30 takes on the form of a bridge.

[0237] When the connecting passage device 30 is in the bridge form, the first inner sheet 60L is separated from the second inner sheet 60R, and the first outer sheet 65L is separated from the second outer sheet 65R. The first inner sheet 60L and the first outer sheet 65L are housed in a first case 40L, a first cap 70L is attached to the first case 40L, and the first case 40L is closed by the first cap 70L. The second inner sheet 60R and the second outer sheet 65R are housed in a second case 40R, a second cap 70R is attached to the second case 40R, and the second case 40R is closed by the second cap 70R. The above is the same as when the connecting passage device 30 is in the separated form.

[0238] The second access floor 150 and the ladder 160 will be described in detail below.

[0239] <10-1. Second access platform> The second connecting floor 150 spans between the lower parts of the first case 40L and the first cap 70L and the lower parts of the second case 40R and the second cap 70R.

[0240] The second connecting floor 150 has a first holder 151L, a first lid member 152L, a second holder 151R, a second lid member 152R, and a floor plate 153.

[0241] The first holder 151L rests on the lower portions of the first case 40L and the first cap 70L and is fixed to the lower portions of the first case 40L and the first cap 70L with a plurality of bolt and nut fasteners. The bolts or nuts of the bolt and nut fasteners may be able to be turned by hand without tools. The top surface of the first holder 151L is open, and the side surfaces of the first holder 151L are also open.

[0242] The bottom surface of first lid member 152L is open, and the side surfaces of first lid member 152L are also open. First lid member 152L is attached to first holder 151L from above, and the open top surface of first holder 151L is covered by first lid member 152L. Even when first lid member 152L is attached to first holder 151L, the side surfaces of first holder 151L and first lid member 152L remain open.

[0243] The second holder 151R rests on the lower portions of the second case 40R and the second cap 70R and is fixed to the lower portions of the second case 40R and the second cap 70R with a plurality of bolt and nut fasteners. The bolts or nuts of the bolt and nut fasteners may be able to be turned by hand without tools. The top surface of the second holder 151R is open, and the side surfaces of the second holder 151R are also open.

[0244] The bottom surface of second lid member 152R is open, and the side surface of second lid member 152R is also open. Second lid member 152R is assembled to second holder 151R from above, and the open top surface of second holder 151R is covered by second lid member 152R. Even when second lid member 152R is assembled to second holder 151R, the side surfaces of second holder 151R and second lid member 152R remain open. The open side surface of the assembly of second holder 151R and second lid member 152R faces the open side surface of the assembly of first holder 151L and first lid member 152L.

[0245] The floorboard 153 is a rollable tambour board. That is, the floorboard 153 has a plurality of rectangular slats, which are arranged in the direction of their short sides, and the long sides of adjacent slats are joined by hinges. The floorboard 153 is spread out like a flat plate and spans between the first holder 151L and the first lid member 152L and the second holder 151R and the second lid member 152R.

[0246] The floor plate 153 is inserted into the assembly of the first holder 151L and the first lid member 152L through an opening in the side of the assembly. The floor plate 153 is fixed to the first holder 151L and the first lid member 152L by bolts 154L. The bolts 154L are screwed into the first holder 151L and the first lid member 152L so as to penetrate from the outside to the inside of the assembly of the first holder 151L and the first lid member 152L in the left-right direction based on a sight reference, and the tips of the bolts 154L are pressed against the floor plate 153, so that the floor plate 153 is sandwiched between the tips of these bolts 154L. This fixes the floor plate 153 to the first holder 151L and the first lid member 152L.

[0247] The floor plate 153 is inserted into the assembly of the second holder 151R and the second lid member 152R through an opening in the side of the assembly. The floor plate 153 is fixed to the second holder 151R and the second lid member 152R with two bolts 154R. The floor plate 153 is bridged between the first holder 151L and the second holder 151R. Each slat of the floor plate 153 is also bridged between the first holder 151L and the second holder 151R. The bolt 154R is screwed into the second holder 151R and the second lid member 152R so as to penetrate from the outside to the inside of the assembly of the second holder 151R and the second lid member 152R in the left-right direction based on the sight reference, and the tip of the bolt 154R is pressed against the floor plate 153. The heads of the bolts 154L, 154R may be provided with gripping portions such as knobs, levers, tabs, handles, knurled discs or butterfly wings, so that the bolts 154L, 154R can be rotated by hand without tools by pinching or grasping the gripping portions.

[0248] When the bolt 154L is loosened, the floor plate 153 can be pulled out and retracted from the first holder 151L and the first lid member 152L. When the bolt 154R is loosened, the floor plate 153 can be pulled out and retracted from the second holder 151R and the second lid member 152R. Pulling out and retracting the floor plate 153 contributes to adjusting the size of the second connecting floor 150 in the direction from the first right outer wall 12L toward the second left outer wall 14R and in the reverse direction. Therefore, the size of the second connecting floor 150 can be adjusted to match the distance between the first right outer wall 12L and the second left outer wall 14R.

[0249] <10-2. Ladder> The ladder 160 is used to ascend and descend between the ground and the second access floor 150 . The upper end of the ladder 160 is hung on a support rod 162. That is, the ladder 160 has a pair of hooks 161 at the upper end, and the hooks 161 are hung on the support rod 162.

[0250] The support rod 162 spans between the lower parts of the first case 40L and the first cap 70L and the lower parts of the second case 40R and the second cap 70R along the edge of the second connecting floor 150. One end of the support rod 162 is attached to the lower parts of the first case 40L and the first cap 70L by a first jig 163L and a first bracket 164L, and the other end of the support rod 162 is attached to the lower parts of the second case 40R and the second cap 70R by a second jig 163R and a second bracket 164R.

[0251] The first bracket 164L holds the lower ends of the left portions of the first case 40L and the first cap 70L. Here, the first bracket 164L has a channel formed in a groove shape (U-shape), and the opening of the groove of the channel faces the lower ends of the left portions of the first case 40L and the first cap 70L, and the lower ends of the left portions of the first case 40L and the first cap 70L are fitted into the groove of the channel. The channel is fixed to the lower ends of the left portions of the first case 40L and the first cap 70L with a plurality of bolt and nut fasteners. The bolts or nuts of these bolt and nut fasteners may be able to be turned by hand without tools.

[0252] The web of the channel material of the first bracket 164L extends from the left portions of the first case 40L and the first cap 70L to the lower portions of the first case 40L and the first cap 70L. The first bracket 164L has a flat arm 165L welded to the web of the channel material. The arm 165L protrudes horizontally from the web of the channel material toward the second bracket 164R.

[0253] The first jig 163L is composed of a channel material formed into a groove shape. With the groove opening of the first jig 163L facing upward, the first jig 163L is attached to the arm 165L by a bolt and nut fastener 166L. Specifically, the web of the first jig 163L is in surface contact with the arm 165L, the first jig 163L rests on the arm 165L, and the bolt shaft of the bolt and nut fastener 166L passes through the web of the first jig 163L and the arm 165L in the vertical direction, and the first jig 163L is attached to the arm 165L by the bolt and nut fastener 166L. When the bolt and nut fastener 166L is loosened, the first jig 163L can rotate around the bolt shaft of the bolt and nut fastener 166L. When the bolt and nut fastener 166L is tightened, the first jig 163L is fixed to the arm 165L. The bolt or nut of the bolt / nut fastener 166L may be able to be turned by hand without a tool.

[0254] One end of the support rod 162 is inserted into the first jig 163L. One end of the support rod 162 is fixed to the first jig 163L by a bolt 167L. The bolt 167L is screwed into the flange of the first jig 163L so as to penetrate from the outside to the inside of the first jig 163L in the left-right direction based on the sight reference, and the tip of the bolt 167L is pressed against one end of the support rod 162, so that one end of the support rod 162 is sandwiched between the tip of the bolt 167L and the opposite flange. When the bolt 167L is loosened, one end of the support rod 162 can be removed from the first jig 163L.

[0255] The second bracket 164R holds the lower ends of the right portions of the second case 40R and the second cap 70R. Here, the second bracket 164R has a channel formed in a groove (C-shape), and the opening of the groove of the channel faces the lower ends of the right portions of the second case 40R and the second cap 70R, and the lower ends of the right portions of the second case 40R and the second cap 70R are fitted into the groove of the channel. The channel is fixed to the lower ends of the right portions of the second case 40R and the second cap 70R with a plurality of bolt and nut fasteners. The bolts or nuts of these bolt and nut fasteners may be able to be turned by hand without tools.

[0256] The web of the channel material of the second bracket 164R extends from the right portions of the second case 40R and second cap 70R to the lower portions of the second case 40R and second cap 70R. The second bracket 164R has a flat arm 165R welded to the web of the channel material. The arm 165R protrudes horizontally from the web of the channel material toward the first bracket 164L.

[0257] The second jig 163R is configured from a channel material formed into a groove shape. With the groove opening of the second jig 163R facing upward, the second jig 163R is attached to the arm 165R by a bolt and nut fastener 166R. Specifically, the web of the second jig 163R is in surface contact with the arm 165R, the second jig 163R is placed on the arm 165R, and the bolt shaft of the bolt and nut fastener 166R passes through the web of the second jig 163R and the arm 165R in the vertical direction, and the second jig 163R is attached to the arm 165R by the bolt and nut fastener 166R. When the bolt and nut fastener 166R is loosened, the second jig 163R can rotate around the bolt shaft of the bolt and nut fastener 166R. When the bolt and nut fastener 166R is tightened, the second jig 163R is fixed to the arm 165R. The bolt or nut of the bolt / nut fastener 166R may be able to be turned by hand without a tool.

[0258] The other end of the support rod 162 is inserted into the second jig 163R. The other end of the support rod 162 is fixed to the second jig 163R by a bolt 167R. The bolt 167R is screwed into the flange of the second jig 163R so as to penetrate from the outside to the inside of the second jig 163R in the left-right direction based on the search reference, and the tip of the bolt 167R is pressed against the other end of the support rod 162, so that the other end of the support rod 162 is sandwiched between the tip of the bolt 167R and the opposite flange. When the bolt 167R is loosened, the other end of the support rod 162 can be removed from the second jig 163R.

[0259] <11. Transformation from Separated Form to Bridge Form> The method for transforming the connecting passage device 30 from the separated configuration to the bridge configuration will be described in the order of steps. The order of steps in the following description may be changed.

[0260] (1D) Place first holder 151L on the lower parts of first case 40L and first cap 70L, and fasten first holder 151L to the lower parts of first case 40L and first cap 70L with a plurality of bolt and nut fasteners. The bolt and nut fasteners may be tightened with a tool or by hand.

[0261] (2D) Place second holder 151R on the lower parts of second case 40R and second cap 70R, and fasten second holder 151R to the lower parts of second case 40R and second cap 70R with a plurality of bolt and nut fasteners. The bolt and nut fasteners may be tightened with a tool or by hand.

[0262] (3D) The floor plate 153 is spread out flat and placed on the bottom of the first holder 151L and the first lid member 152L, so that the floor plate 153 spans between the first holder 151L and the second holder 151R.

[0263] (4D) The first lid member 152L is placed over the first holder 151L to cover the first holder 151L, and the opening on the top surface of the first holder 151L is covered with the first lid member 152L. Similarly, the second lid member 152R is placed over the second holder 151R to cover the second holder 151R.

[0264] (5D) The bolts 154L are screwed into the first holder 151L and the first lid member 152L so as to penetrate from the outside to the inside of the assembly of the first holder 151L and the first lid member 152L in the left-right direction based on the sight reference, and the floor plate 153 is clamped between the tip of the bolts 154L and the inner surfaces of the first holder 151L and the first lid member 152L. Similarly, the floor plate 153 is fixed by the bolts 154R.

[0265] (6D) The grooved openings of the channel material of the first bracket 164L are aligned with the lower ends of the left portions of the first case 40L and the first cap 70L, and the first bracket 164L embraces the lower ends of the left portions of the first case 40L and the first cap 70L. The channel material of the first bracket 164L is fixed to the lower ends of the left portions of the first case 40L and the first cap 70L with bolt and nut fasteners. The bolt and nut fasteners may be tightened with a tool or by hand. Similarly, the second bracket 164R embraces the lower ends of the left portions of the second case 40R and the second cap 70R, and the first bracket 164L is fixed to the lower ends of the left portions of the first case 40L and the first cap 70L with bolt and nut fasteners.

[0266] (7D) With the grooved opening of first jig 163L facing upward, first jig 163L is placed on arm 165L. First jig 163L is attached to arm 165L with bolt and nut fasteners 166L. Then, bolt and nut fasteners 166L are tightened to the extent that first jig 163L can be rotated by hand. Tightening of bolt and nut fasteners 166L may be performed with a tool or by hand. Similarly, second jig 163R is attached to arm 165R.

[0267] (8D) One end of the support rod 162 is clamped by the tip of the bolt 167L. Similarly, the other end of the support rod 162 is clamped by the tip of the bolt 167R. The bolts 167L and 167R may be rotated by a tool or by hand.

[0268] (9D) The ladder 160 is leaned against the support rod 162. At this time, the hook 161 at the top end of the ladder 160 is hooked onto the support rod 162.

[0269] <12. Transformation from bridge form to separate form> The method for transforming the connecting passage device 30 from the bridge configuration to the separated configuration will be described in the order of steps. The order of steps in the following description may be changed.

[0270] (1E) Remove the ladder 160 from the support rod 162.

[0271] (2E) The bolts 167L and 167R are loosened by a tool or by hand, and the support rods 162 are removed from the jigs 163L and 163R.

[0272] (3E) The first bracket 164L and the first jig 163L are removed from the first case 40L and the first cap 70L. The second bracket 164R and the second jig 163R are removed from the second case 40R and the second cap 70R.

[0273] (4E) The bolts 154L are removed from the first holder 151L and the first lid member 152L using a tool or by hand. The first lid member 152L is removed from the first holder 151L. The bolts 154R are removed from the second holder 151R and the second lid member 152R using a tool or by hand. The second lid member 152R is removed from the second holder 151R.

[0274] (5E) The floor board 153 is removed from the holders 151L and 151R.

[0275] (6E) The first holder 151L is removed from the first case 40L and the first cap 70L, and the second holder 151R is removed from the second case 40R and the second cap 70R.

[0276] <13. Other Perverts> The connecting passageway device 30 may be transformed from a rigid through-passage configuration or a non-rigid through-passage configuration to a separated configuration. The connecting passageway device 30 may be transformed from a bridge configuration to a separated configuration to a rigid through-passage configuration or a non-rigid through-passage configuration.

[0277] <14. Summary> (1) In the case of the separated form or the bridge form, the seats 60L and 65L are housed in the first case 40L, and the seats 60R and 65R are housed in the second case 40R, so the seats 60L and 65L do not get in the way. The same applies to the second inner seat 60R and the second outer seat 65R.

[0278] (2) Because the first case 40L is attached to the first right outer wall 12L, surrounding the first door 16L, there is no need to worry about where to store the seats 60L and 65L. Loss of the seats 60L and 65L can also be prevented. The same applies to the second inner seat 60R and the second outer seat 65R.

[0279] (3) Since the first cap 70L is attached to the first case 40L so as to cover the opening of the first case 40L, the sheets 60L and 65L can be maintained in the first case 40L. The same applies to the second inner sheet 60R and the second outer sheet 65R.

[0280] (4) In the bridge configuration, the second access floor 150 spans between the lower case parts 402L and 402R, so people can get from the first door 16L onto the second access floor 150 and enter the second door 16R from the second access floor 150 without having to get down to the ground from the first door 16L. People can also move in the reverse direction. The stored seats 60L, 65L, 60R, and 65R do not get in the way of people passing between the first door 16L and the second door 16R.

[0281] (5) The first case 40L can be used to support the second connecting floor 150 and to house the seats 60L and 65L. The same applies to the second case 40R.

[0282] (6) The top surface of the first lid member 152L, the top surface of the floor plate 153, and the top surface of the second lid member 152R can be used as a floor surface. The first lid member 152L, the floor plate 153, and the second lid member 152R contribute to creating a continuous floor surface from the first door 16L to the second door 16R.

[0283] (7) By rolling up the floor board 153, the floor board 153 becomes easier to handle.

[0284] (8) A person or the like can use the ladder 160 to climb from the ground to the second access floor 150 and enter the first door 16L or the second door 16R from the second access floor 150. The reverse movement is also possible.

[0285] (9) In the rigid or non-rigid configuration, the space between the outer hood 65 and the inner hood 60 is a closed space, making it difficult for air to flow through the space. Since the insulating material 80 is filled in the space, the insulating properties are improved.

[0286] (10) The outer skin 110 is made of a metal such as stainless steel, and therefore has rigidity. Since the outer skin 110 surrounds the outer hood 65 from above and both sides, the outer hood 65, the heat insulating material 80, and the inner hood 60 inside the outer skin 110 are protected by the outer skin 110.

[0287] (11) The outer skin 110 has a top cover 120 and side covers 130, 140. These covers 120, 130, 140 are attached to the first case 40L and the second case 40R so as to bridge the gap between them, thereby assembling the outer skin 110. Because the outer skin 110 is composed of such covers 120, 130, 140, it is easy to surround the outer hood 65 from above and on both sides with the outer skin 110, and the assembly work of the outer skin 110 is also easy.

[0288] (12) The first cover plate 121L and the first flange 122L of the top cover 120 are guided relative to the second cover plate 121R and the second flange 122R by the linear guide mechanism 123. Therefore, even if the distance between the first right outer wall 12L and the second left outer wall 14R changes, the width of the top cover 120 can be adjusted accordingly. In other words, even if the distance between the first right outer wall 12L and the second left outer wall 14R changes, the top cover 120 can be installed so as to bridge between the first case 40L and the second case 40R. The same applies to the side covers 130, 140.

[0289] (13) First slider 125L of top cover 120 is movable relative to first covering plate 121L along the long side of first covering plate 121L in the long side direction of first covering plate 121L. Second slider 125R of top cover 120 is movable relative to second covering plate 121R along the long side of second covering plate 121R in the long side direction of second covering plate 121R. Therefore, even if there is a misalignment between mobile houses 1L, 1R, top cover 120 can be installed so as to bridge between first case 40L and second case 40R.

[0290] (14) Even if there is a difference in elevation between the ground surface of first mobile house 1L and the ground surface of second mobile house 1R, the difference in elevation can be absorbed by the thickness of spacers 129L, 129R, and top cover 120 can be installed to bridge between first case 40L and second case 40R. The height difference can also be absorbed by the tightness of bolt and nut fasteners 128L, 128R, and top cover 120 can be installed to bridge between first case 40L and second case 40R.

[0291] (15) The first slider 135L of the side cover 130 is movable relative to the first covering plate 131L along the long side of the first covering plate 131L in the long side direction of the first covering plate 131L. The second slider 135R of the side cover 130 is movable relative to the second covering plate 131R along the long side of the second covering plate 131R in the long side direction of the second covering plate 131R. Therefore, even if there is a difference in height between the ground surface of the first mobile house 1L and the ground surface of the second mobile house 1R, the side cover 130 can be installed so as to bridge between the first case 40L and the second case 40R. The same applies to the side cover 140.

[0292] (16) Even if there is a misalignment between the front and rear of mobile houses 1L, 1R, the thickness of spacers 139L, 139R can absorb the misalignment, and side cover 130 can be installed to bridge between first case 40L and second case 40R. The tightness of bolt and nut fasteners 138L, 138R can also absorb the misalignment between the front and rear, and side cover 130 can be installed to bridge between first case 40L and second case 40R.

[0293] (17) The seams between the top cover 120 and the side cover 130 are sealed by seals 126, 136. This helps prevent wind, rain, snow, or water from getting in. The seals 126, 136 also prevent hot or cold air from leaking or getting in.

[0294] (18) Because the outer shell 110 is detachable, the configuration of the connecting passage device 30 can be changed. When the outer shell 110 is removed, the connecting passage device 30 can be configured as a non-rigid through-passage configuration, a separate configuration, or a bridge configuration. When the outer shell 110 is attached, the connecting passage device 30 can be configured as a rigid through-passage configuration.

[0295] (19) When the connecting passage device 30 is in the non-robust through-passage configuration or the robust through-passage configuration, the first connecting floor 85 is bridged between the first right outer wall 12L and the second left outer wall 14R inside the inner hood 60 and below the lower ends of the doors 16L, 16R. Specifically, the first connecting floor 85 is bridged between the lower case part 402L of the first case 40L and the lower case part 402R of the second case 40R. This makes it easy for people to walk inside the inner hood 60. The first connecting floor 85 protects the inner hood 60, the heat insulating material 80, and the outer hood 65 below it.

[0296] (20) The floor plate 87 of the first connecting floor 85 can be pulled out from or pulled into the holders 86L, ​​86R. This contributes to adjusting the size of the first connecting floor 85. Therefore, the first connecting floor 85 can be installed regardless of the distance between the first right outer wall 12L and the second left outer wall 14R.

[0297] (21) When the connecting passage device 30 is in the separated form or bridge form, the first inner sheet 60L and the first outer sheet 65L are housed in the first case 40L. The first case 40L is covered with the first cap 70L. The first inner sheet 60L and the first outer sheet 65L are not in the way and are protected. There is no need to remove the first inner sheet 60L and the first outer sheet 65L from the shed 10L, preventing the first inner sheet 60L and the first outer sheet 65L from being lost. The same applies to the second inner sheet 60R and the second outer sheet 65R.

[0298] (22) When the connecting passage device 30 is in the form of a bridge, the second connecting floor 150 is bridged between the first right outer wall 12L and the second left outer wall 14R below the lower ends of the first door 16L and the second door 16R. Specifically, the second connecting floor 150 is bridged between the lower parts of the first case 40L and the first cap 70L and the lower parts of the second case 40R and the second cap 70R. This makes it easy for people to walk on the second connecting floor 150. It is easy for people to move back and forth from the first door 16L to the second door 16R.

[0299] (23) When the connecting passage device 30 is in the form of a bridge, a support rod 162 is spanned between the first right exterior wall 12L and the second left exterior wall 14R along the edge of the second access floor 150, and the ladder 160 is leaned against the support rod 162 by having the hook 161 of the ladder 160 hooked onto the support rod 162. Therefore, a person or the like can get out onto the second access floor 150 from the first door 16L or the second door 16R and use the ladder 160 to descend from the second access floor 150 to the ground. Conversely, a person or the like can use the ladder 160 to climb from the ground onto the second access floor 150 and enter the first door 16L or the second door 16R from the second access floor 150.

[0300] (24) When the connecting passage device 30 is in the bridge configuration, the first bolt and nut fastener 166L passes through the first arm 165L and the first jig 163L in the vertical direction. Therefore, when the first bolt and nut fastener 166L is loosened, the posture of the first jig 163L can be adjusted around the bolt axis of the first bolt and nut fastener 166L. The second bolt and nut fastener 166R passes through the second arm 165R and the second jig 163R in the vertical direction. Therefore, when the second bolt and nut fastener 166R is loosened, the posture of the second jig 163R can be adjusted around the bolt axis of the second bolt and nut fastener 166R. Therefore, the posture of the support rod 162 can be adjusted to match the relative position of the second jig (163R) with respect to the first jig 163L.

[0301] (25) When the connecting passage device 30 is in the non-robust through-passage form or the robust through-passage form, the support base 90 supports the overlapping outer hoods 65 from below, thereby protecting the outer hoods 65. Consequently, the heat insulating material 80 and the inner hood 60 are also protected. The support base 90 contributes to preventing wind, rain, water, snow, blizzard, etc. from entering the overlapping outer hoods 65.

[0302] (26) The overlapping portions of the outer hood 65 are sandwiched between the support base 90 and the retainer 100. This prevents the overlapping portions of the outer hood 65 from separating and the hook-and-loop fasteners 68L, 68R from peeling off, and prevents wind, rain, water, snow, blizzards, etc. from entering the overlapping portions of the outer hood 65.

[0303] (27) The support base 90 is an assembly consisting of bridge plates 96L, 96R and bolt and nut fasteners 99. The bolt and nut fasteners 99 and the elongated holes 98L, 98R enable the first bridge plate 96L to move relative to the second bridge plate 96R in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. This makes it possible to adjust the size of the support base 90 in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. Therefore, even if the distance between the first right outer wall 12L and the second left outer wall 14R changes, the support base 90 can be installed to span between the first bracket 91L and the second bracket 91R.

[0304] (28) Because the bolt and nut fasteners 99 loosely fasten the first cross plate 96L and the second cross plate 96R, the first cross plate 96L can tilt relative to the second cross plate 96R. Therefore, even if there is a difference in height between the first bracket 91L and the second bracket 91R, the support base 90 can be easily installed to span them.

[0305] (29) The elongated holes 97L, 97R and bolt and nut fasteners 105L, 105R enable the support base 90 to move in the width direction of the doors 16L, 16R relative to the brackets 91L, 91R. The support base 90 can be easily installed even if the first mobile house 1L and the second mobile house 1R are misaligned forward or backward.

[0306] (30) The presser foot 100 is an assembly consisting of a guide plate 101, a slide plate 102, and a bolt and nut fastener 107. The bolt and nut fastener 107 and the elongated hole 106 enable the slide plate 102 to move relative to the guide plate 101 in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. This makes it possible to adjust the size of the presser foot 100 in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. Therefore, even if the distance between the first right outer wall 12L and the second left outer wall 14R changes, the presser foot 100 can be installed to bridge between the first bracket 91L and the second bracket 91R.

[0307] (31) The elongated holes 103 and the bolt and nut fasteners 105L enable the slide plate 102 to move relative to the first bracket 91L in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. The elongated holes 104 and the bolt and nut fasteners 105R enable the guide plate 101 to move relative to the second bracket 91R in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. This makes it possible to adjust the size of the presser foot 100 in the direction from the first bracket 91L to the second bracket 91R and in the reverse direction. Therefore, even if the distance between the first right outer wall 12L and the second left outer wall 14R changes, the presser foot 100 can be installed to bridge between the first bracket 91L and the second bracket 91R.

[0308] (32) The elongated holes 103 and bolt / nut fasteners 105L allow the slide plate 102 to rotate relative to the first bracket 91L. The elongated holes 104 and bolt / nut fasteners 105R allow the guide plate 101 to rotate relative to the second bracket 91R. Therefore, even if the first mobile house 1L and the second mobile house 1R are misaligned in the front-to-back direction, the retainer 100 can be easily installed.

[0309] (33) The bolt and nut fasteners 105L are loosely tightened. This allows the first cross plate 96L and the slide plate 102 to tilt relative to the first bracket 91L. The bolt and nut fasteners 105R are loosely tightened. This allows the second cross plate 96R and the guide plate 101 to tilt relative to the first bracket 91L. As a result, even if there is a height difference between the first bracket 91L and the second bracket 91R, the support base 90 and the presser foot 100 can be easily installed to span them. [Explanation of symbols]

[0310] 1L Mobile House No. 1 1R Mobile House No. 2 12L 1st right outer wall 14R 2nd left outside wall 16L 1st door 16R Door 2 30 Connecting passage device 40L first case 40R Second Case 70L 1st Cap 70R 2nd Cap 60 Inner hood 60L First inner sheet 60R 2nd inner seat 61L First medial dentition 61R Second medial dentition 65 outer hood 65L First outer sheet 65R Second outer seat 66L First lateral dentition 66R Second outer dentition 80 Insulation 84L 1st lid material 84R Second lid material 85 First access deck 86L First holder 86R 2nd holder 87 Floorboards 110 Hull 120 Top cover 126 stickers 130,140 Side cover 136 stickers 150 Second access deck 151L First holder 151R 2nd holder 153 Floorboards 160 Ladder 162 Support rod 401L Top of the first case 401R Second case upper part 402L Lower part of first case 402R Second case bottom 403L Left side of first case 403R Second case left part 404L Right side of first case 404R Right side of second case

Claims

1. A connecting passage device that is formed in a first outer wall and a second outer wall facing each other and connects a first opening and a second opening facing each other, a first case lower portion attached to the first outer wall along a lower edge of the first opening; a second case lower portion attached to the second outer wall along a lower edge of the second opening; a first holder attached to the top of the first case lower portion; a second holder attached to the lower part of the second case; a floor plate that is bridged between the first holder and the second holder and is received by the first holder and the second holder; Equipped with the floor plate is provided on the first holder so as to be movable relative to the first holder in a direction from the first holder toward the second holder and in the reverse direction; The connecting passage device is provided on the second holder so that the floor plate can move relative to the second holder in a direction from the second holder toward the first holder and in the opposite direction.

2. The first holder is formed in a flat box shape, the side of the first holder faces the second holder, a first slot is formed on the side of the first holder, the floor board is inserted into the first slot, and the floor board is arranged so that it can be pulled out from the inside of the first holder through the first slot towards the second holder and pulled from the side of the second holder through the first slot into the inside of the first holder; The second holder is formed in a flat box shape, a side surface of the second holder faces the first holder, a second slot is formed on the side surface of the second holder, the floor plate is inserted into the second slot, and the floor plate is configured to be pulled out from the inside of the second holder through the second slot towards the first holder and pulled from the side of the first holder through the second slot into the inside of the second holder. The connecting passage device according to claim 1 .

3. A first lid material attached to the first holder from above the first holder; a second lid member attached to the second holder from above the second holder; Equipped with an upper surface of the first holder is open, and a side surface of the first holder is open; a lower surface of the first lid member is open, and a side surface of the first lid member is open; the open upper surface of the first holder is covered by the first lid member; the floor plate is inserted into the first holder and the first lid member through the open side surfaces of the first holder and the first lid member; and the floor plate is fixed to the first holder and the first lid member by bolts; The top surface of the second holder is open, and the side surfaces of the second holder are open, the bottom surface of the second lid material is open, and the side surfaces of the second lid material are open, the opening of the top surface of the second holder is covered by the second lid material, the floor plate is inserted into the inside of the second holder and the second lid material from the openings in the side surfaces of the second holder and the second lid material, and the floor plate is fixed to the second holder and the second lid material with bolts. The connecting passage device according to claim 1 .

4. A connecting passage device which is formed on a first outer wall and a second outer wall facing each other and connects a first opening and a second opening facing each other, a first case lower portion attached to the first outer wall along a lower edge of the first opening; a second case lower portion attached to the second outer wall along a lower edge of the second opening; a first holder attached to the top of the first case lower portion; a second holder attached to the lower part of the second case; a floor plate that is bridged between the first holder and the second holder and is received by the first holder and the second holder; a first case upper portion attached to the first outer wall along an upper edge of the first opening; a first case left portion attached to the first outer wall along a left edge of the first opening; a first case right portion attached to the first outer wall along a right edge of the first opening; a second case upper portion attached to the second outer wall along an upper edge of the second opening; a second case left portion attached to the second outer wall along a left edge of the second opening; a second case right portion attached to the second outer wall along a right edge of the second opening; a flexible, tubular first inner sheet; a flexible tubular first outer sheet; a flexible, tubular second inner sheet; a flexible tubular second outer sheet; Equipped with the first case lower portion, the first case upper portion, the first case left portion, and the first case right portion are connected in a frame shape to surround the first opening, thereby constituting a first case, and the first case is formed in a groove shape so as to open toward the second outer wall, the second case lower portion, the second case upper portion, the second case left portion, and the second case right portion are connected in a frame shape to surround the second opening, thereby constituting a second case, and the second case is formed in a groove shape so as to open toward the first outer wall, the first inner sheet is attached to the first case along the outer periphery of the first opening inside the first case, the first outer sheet surrounds the first inner sheet from above, below, and both sides, and the first outer sheet is attached to the first case along the outer periphery of the first opening inside the first case, the second inner sheet is attached to the second case along the outer periphery of the second opening inside the second case, the second outer sheet surrounds the second inner sheet from above, below, and both sides, and the second outer sheet is attached to the second case along the outer periphery of the second opening inside the second case, The first holder is attached to the top of the lower part of the first case inside the first inner sheet, the second holder is attached to the top of the lower part of the second case inside the second inner sheet, and the floor board is bridged between the first holder and the second holder inside the first inner sheet and the second inner sheet. Connecting passage device.

5. a first inner tooth row provided on an edge of the first inner sheet; a first outer tooth row provided on an edge of the first outer sheet; a second inner tooth row provided on an edge of the second inner sheet; a second outer tooth row provided on an edge of the second outer sheet; The connecting passage device according to claim 4, comprising:

6. The first inner tooth row is engaged with the second inner tooth row, whereby the first inner sheet is connected to the second inner sheet, and a first connected body of the first inner sheet and the second inner sheet forms a hood, The first outer sheet is connected to the second outer sheet by the first outer tooth row engaging with the second outer tooth row, and a second connected body of the first outer sheet and the second outer sheet forms a hood. The connecting passage device according to claim 5.

7. A heat insulating material filled between the first connector and the second connector The connecting passage device according to claim 6, comprising:

8. The first inner teeth row and the second inner teeth row are disengageable from each other, and the first outer teeth row and the second outer teeth row are disengageable from each other. The connecting passage device according to claim 6 or 7.

9. The floor plate is disposed inside the first connecting body and below the first opening and the second opening, and is bridged between the first holder and the second holder. The connecting passage device according to claim 6 or 7.

10. a rigid outer skin that surrounds the second connecting body from above and both sides, is attached to the first outer wall along the outer periphery of the first opening outside the second connecting body, is attached to the second outer wall along the outer periphery of the second opening outside the second connecting body, and is bridged between the first outer wall and the second outer wall outside the second connecting body; The connecting passage device according to claim 6 or 7, comprising:

11. The outer skin is detachable from the first outer wall and the second outer wall. The connecting passage device according to claim 10.

12. The outer skin is a top cover that is bridged between the first outer wall and the second outer wall on the second connecting body; a pair of side covers extending between the first outer wall and the second outer wall on both sides of the second connecting body; and The combination of the top cover and the side cover forms a gate shape. The connecting passage device according to claim 10.

13. The joint between the top cover and the side cover is sealed with a seal. The connecting passage device according to claim 12.

14. The sizes of the top cover and the side cover in the direction from the first outer wall toward the second outer wall and in the opposite direction are adjustable to match the gap between the first outer wall and the second outer wall. The connecting passage device according to claim 12.

15. a first cap that is detachable from the first case and is attached to the first case so as to cover the opening of the first case, thereby covering the first inner sheet and the first outer sheet contained in the first case and surrounding the first opening; The second case is detachably attached to the second case, and the second case is detachably attached to the second case so as to cover the opening of the second case. a second cap attached to the second case to cover the second inner sheet and the second outer sheet housed in the second case and to enclose the second opening; The connecting passage device according to claim 4 or 5, comprising:

16. When the first cap and the second cap are attached to the first case and the second case, respectively, the floor plate is bridged between the first holder and the second holder below the first opening and the second opening. The connecting passage device according to claim 15.

17. a support rod that is bridged between the first outer wall and the second outer wall along an edge of the floor plate that is bridged between the first holder and the second holder, and is detachable from the first outer wall and the second outer wall; a ladder that is hooked onto the support rod and leaned against the support rod; The connecting passage device according to claim 15, comprising:

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