JP7560265B2 - Mobile jig and construction method using the mobile jig - Google Patents

Description

The present invention relates to a moving jig and a construction method using the moving jig, and in particular to a moving jig for moving a heavy object on a floor and a construction method using the moving jig.

Conventionally, in order to improve the efficiency of construction work at a construction site, a construction method has been known in which a heavy interior unit (e.g., a modular bath) is preassembled in a factory, the assembled interior unit is transported to the construction site, the transported interior unit is lifted by a sling hooked to a lifting device, and the lifted interior unit is installed in a designated position inside the building's structure.
At this time, in the process of installing the interior unit in a predetermined position, depending on the progress of the construction or the absence of a professional contractor to install the interior unit, it may not be possible to install the interior unit in the predetermined position as it is. In such a case, it is necessary to temporarily place the lifted interior unit in another position inside the structure, and then move the temporarily placed interior unit to the predetermined position inside the structure after the interior unit can be installed.
For this reason, a moving jig is known that can temporarily place an interior unit and move the temporarily placed interior unit while it is lifted off the floor (see, for example, Patent Documents 1 and 2).

The jig for moving the spatial unit described in Patent Document 1 is mainly composed of a number of hydraulic jacks that are detachably fixed to a base frame at the lower end of the spatial unit and raise and lower the spatial unit, and a number of mobile carts that are inserted into a lower position of the spatial unit and support the spatial unit from below.
With the above-described configuration, the spatial unit can be temporarily placed in a state where it is suspended above the floor, and the temporarily placed spatial unit can be moved to a predetermined position while being suspended.
In addition, by raising the spatial unit with a hydraulic jack, the mobile trolley can be inserted into a position below the spatial unit.

The item transport device described in Patent Document 2 is mainly composed of a main body of the device, wheels that are located below the main body of the device and move on the floor, a support shaft that protrudes from the outer surface of the main body of the device and is inserted into a through hole in the item, and a hydraulic jack that is located inside the main body of the device and moves the support shaft up and down.
With the above-mentioned configuration, an article can be moved along the floor while being lifted off the floor.

JP 2000-320011 A JP 2000-103548 A

However, in the moving jigs as described in Patent Documents 1 and 2, consumables such as hydraulic jacks are used to raise and lower heavy objects, and therefore replacement or maintenance work is required as the consumables deteriorate. Also, there is a risk that the moving jigs will become relatively large.
Therefore, there has been a demand for a moving tool that can lift a heavy object off the floor and move the heavy object across the floor with a simple configuration.

There was also a need for a moving tool that could temporarily place a heavy interior unit (e.g., a modular bath) raised above the floor, and that could conveniently move the interior unit while keeping it raised above the floor.
Furthermore, there has been a demand for a construction method using a movable jig that enables interior units preassembled in a factory (a location other than the construction site) to be suitably installed inside the framework of a building.

The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a moving jig that has a simple configuration and is capable of lifting a heavy object off the floor and moving the heavy object across the floor, and a construction method using the moving jig.
Another object of the present invention is to provide a moving jig and a construction method using the moving jig that can temporarily place an interior unit in a state where it is raised above the floor and can move the interior unit in a suitable manner.

The above problem is solved by the mobile jig of the present invention, which provides a mobile jig for moving a heavy object across a floor, comprising a main body portion that forms the main body of the mobile jig, caster portions that are located below the main body portion and are used for moving across the floor, a holding portion that is located above the main body portion and is used to hold a held portion provided on the heavy object from the side, and a height adjustment member that connects the main body portion and the holding portion and is attached in a state in which the height position of the holding portion can be changed relative to the main body portion, wherein the holding portion holds the held portion provided on the bottom of the heavy object by clamping it from the side, the height adjustment member is located in the central part of the main body portion, and a plurality of caster portions are provided to surround the height adjustment member .
With the above-described configuration, it is possible to realize a moving jig that can lift a heavy object off the floor and move the heavy object across the floor with a simple configuration.
In detail, the moving jig is equipped with a height adjustment member that can be attached in a state in which the height position of the holding part can be changed relative to the main body, and makes it possible to adjust the height of the holding part with a simple configuration without using consumables such as hydraulic jacks as in the past.
In addition, the height adjustment member is positioned in the central part of the main body, and multiple caster parts are provided surrounding the height adjustment member, so that the height adjustment member is stably attached and the holding part attached via the height adjustment member can hold heavy objects appropriately.

Furthermore, the above problem is solved by the moving jig of the present invention, which is a moving jig for moving a heavy object across a floor, comprising a main body portion that forms the main body of the moving jig, caster portions that are located below the main body portion and are used for moving across the floor, a holding portion that is located above the main body portion and is used to hold a held portion provided on the heavy object from the side, and a height adjustment member that connects the main body portion and the holding portion and is attached in a state in which the height position of the holding portion can be changed relative to the main body portion, wherein the height adjustment member is located in the central portion of the main body portion, and a relief hole is formed in the portion of the main body portion that overlaps with the holding portion in the vertical direction to avoid interference with the holding portion.
By forming the escape hole as described above, the moving jig can be made as small as possible.

In this case, the holding portion is attached to the outer surface side of the height adjustment member and has a side wall portion extending in a direction perpendicular to the height direction of the moving jig, and an upper wall portion and a bottom wall portion protruding from the upper and lower ends of the side wall portion respectively on the opposite side to the height adjustment member side, and the holding portion preferably holds the held portion provided at the bottom of the heavy object by clamping it in the vertical direction with the upper wall portion and the bottom wall portion.
With the above configuration, the holding portion has a side wall portion, an upper wall portion and a bottom wall portion, and holds the base frame of the interior unit by clamping it in the vertical direction, allowing the moving jig to hold the interior unit more stably.
In this case, the moving jig is a jig for moving the heavy interior unit, the holding portion holds the base frame provided on the bottom surface of the interior unit by clamping it from the sides, the height adjustment member is positioned in the central part of the main body portion, and multiple caster portions are provided to surround the height adjustment member.
With the above-mentioned configuration, the interior unit can be temporarily placed in a state where it is raised above the floor, and the interior unit can be moved suitably. More specifically, the holding portion holds the base frame on the bottom surface of the interior unit by sandwiching it from the sides, so that the moving jig can easily hold the interior unit stably.
In this case, the main body portion is a plate-shaped main body plate, the caster portions are each attached to a corner or the periphery of a corner of the main body plate, and three are arranged at approximately equal intervals from the central portion of the main body plate, and the holding portion is arranged between the adjacent first caster portion and second caster portion, and is arranged on an imaginary line connecting the first caster portion and the second caster portion in a planar view, and is arranged at a position opposite the third caster portion side with respect to the central portion of the main body plate, and is arranged on an extension of the imaginary line connecting the central portion of the main body plate and the third caster portion.
With the above-mentioned configuration, the interior unit can be stably held while suppressing an increase in size with a simple configuration. In addition, since the caster parts are arranged in a well-balanced manner, the interior unit can be moved suitably.
In particular, by making the moving jig smaller, it is possible to prevent the moving jig from coming into contact with the leg bolts on the bottom surface of the interior unit.

In this case, the main body portion is a plate-shaped main body plate, and the height adjustment member is assembled through an assembly hole provided in the main body plate, and has a fixing bolt that is long in the vertical direction and a height adjustment nut that is screwed onto the shaft portion of the fixing bolt, and is configured so that the height position of the holding portion can be changed by adjusting the screwing position of the height adjustment nut.
With the above-described configuration, it is possible to realize a moving jig having a height adjustment function for the holding portion with a simple configuration, without using a hydraulic jack or the like as in the conventional case.

The above problem can also be solved by a construction method using the above-mentioned moving jig, which includes a unit assembly process for assembling a heavy interior unit, a unit delivery process for transporting the assembled interior unit to a construction site, a unit lifting process for lifting the delivered interior unit with a sling member hooked to a lifting device, a unit temporary placement process for temporarily placing the lifted interior unit inside the structure of a building in a floating state above the floor, a unit moving process for moving the temporarily placed interior unit to a predetermined position inside the structure, and a unit installation process for installing the interior unit at a predetermined position inside the structure, wherein in the unit temporary placement process, a plurality of moving jigs are attached to a base frame provided on the bottom surface of the interior unit, and in the unit moving process, the moving jigs are removed from the interior unit that has been moved to the predetermined position inside the structure.
The above-described configuration makes it possible to realize a construction method using a movable jig that enables an interior unit preassembled in a factory to be suitably installed inside the framework of a building.

According to the moving jig and construction method using the moving jig of the present invention, a heavy object can be lifted off the floor with a simple configuration, and the heavy object can be moved across the floor.
In particular, the interior unit can be temporarily placed in a state where it is raised above the floor, and the interior unit can be moved in an appropriate manner.
Also, it becomes possible to suitably install the interior unit preassembled in a factory inside the framework of a building.

FIG. 2 is a diagram showing the construction system S of the present embodiment, and is an explanatory diagram showing the state in which the interior unit is lifted using a lifting balance and a lifting jig. FIG. 13 is a diagram showing the construction system S, and is an explanatory diagram showing the state in which an interior unit is temporarily placed using a moving jig. FIG. 2 is an enlarged view of a main portion of FIG. 1, showing a sling member and a hoisting balance. FIG. 2 is an enlarged view of a main portion of FIG. 1, showing a sling member, a belt member, and an interior unit. FIG. 2 is an enlarged view of a main portion of FIG. 1, and is a perspective view showing a sling member, a hanging jig, and an interior unit. FIG. 3 is an enlarged view of a main portion of FIG. 2, showing a moving jig and an interior unit; FIG. 13 is a plan view showing the state in which the hanging balance is fixed in the "deployed position." FIG. 13 is a plan view showing the hanging balance in the "deployed position" and ready to be folded. FIG. 13 is a plan view showing the state in which the hanging balance is in the "folded position." FIG. FIG. FIG. FIG. 4 is an exploded view showing a height adjustment member of the moving jig. 13 is a diagram showing a state in which the moving jig is attached to a base frame of the interior unit. FIG. FIG. 11 is a process diagram showing a construction method using a moving jig.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
This embodiment relates to a moving jig for moving an interior unit on a floor while keeping it above the floor, the moving jig including a main body portion that is the main body of the moving jig, caster portions that are located below the main body portion and move the interior unit on the floor, a holding portion that is located above the main body portion and holds a base frame that is located on the bottom surface of the interior unit from the side, and a height adjustment member that connects the main body portion and the holding portion and is attached in a state in which the height position of the holding portion can be changed relative to the main body portion. The present embodiment also relates to an invention of a construction method using the moving jig.

The construction system S including the mobile jig 300 of this embodiment is a construction system used to lift an interior unit U preassembled in a factory using a lifting device L and install it directly in a designated position inside the structure of a building, in order to streamline assembly and installation work at a construction site, as shown in Figures 1 to 6.
More specifically, the construction system S includes a sling member 1 hooked to the lifting device L, and a lifting balance 100 and a lifting jig 200 for holding the lifted position of the sling member 1. The construction system S further includes a moving jig 300 that is used when temporarily placing the lifted interior unit U inside the building in a state where it is suspended above the floor, and is also used when moving the temporarily placed interior unit U to a predetermined position inside the building.

As shown in Figures 1, 5, and 6, the interior unit U is a unit that is assembled so that various facilities to be installed inside a building can be unitized and installed as is, and includes various unit items such as a unit bath, a unit toilet, and a unit kitchen.
The interior unit U is mainly composed of a box-shaped unit body U1, a rectangular frame-shaped base frame U2 attached to the bottom surface of the unit body U1, and a plurality of leg members U3 protruding downward from the bottom surface of the base frame U2.
The interior unit U is covered from above with a sheet-like unit cover U4 from the process of transporting it from the factory to the construction site to the process of installing it inside the building.

The base frame U2 is formed from a long rectangular pipe member having a square cross section, and is a frame member for installing the interior unit U on the framework of the building.
The base frame U2 also functions as a member for attaching a moving jig 300 when moving the interior unit U on the floor.
The leg member U3 is a shaft-shaped leg member extending in the vertical direction, and is fixed onto a floor panel inside the building using an adhesive.
The leg member U3 also functions as a member for attaching the lifting jig 200 when lifting the interior unit U.
1, the unit cover U4 is a waterproof protective cover, and a cover opening/closing part U4a is formed on one end surface in the width direction of the unit cover U4 to enable removal of the interior unit U. The cover opening/closing part U4a is configured to be openable and closable by a linear fastener.

As shown in Figures 1 to 5, the sling member 1 is a long belt sling made of nylon, and is mainly composed of a lifting sling 10 having one end hooked to the lifting section L1 of the lifting device L and the other end attached to a lifting balance 100, and a support sling 20 having an upper end hooked to the lifting balance 100 and a lower end attached to a lifting jig 200.
Annular portions 11, 12 and 21, 22 are formed at both ends of the suspension sling 10 and the support sling 20 in the longitudinal direction, respectively, and a ring-shaped tongue portion 23 is separately attached to the central portion of the suspension sling 10.

In detail, the loop portion 11 of the lifting sling 10 is hooked to the lifting part L1 via a known shackle, and the loop portion 12 is directly attached to the sling attachment parts 112 provided at the four corners of the lifting balance 100.
The annular portion 21 of the support sling 20 is hooked to sling mounting holes 114 provided at the four corners of the hoisting balance 100 via a known shackle, and the annular portion 22 is attached to the leg member U3 of the interior unit U via a hanging jig 200.
The tongue portion 23 of the support sling 20 is a portion through which the waist belt 30 extending to surround the unit main body U1 is inserted and which supports the waist belt 30.
The waist belt 30 is a long nylon belt that extends along the outer surface of the unit body U1 and serves to prevent the interior unit U from tipping over when being lifted.

In the construction system S, as shown in FIG. 1, four long lifting slings 10 and four support slings 20 are used to lift the interior unit U.
Four lifting slings 10 extend from the lifting section L1 toward the four corners of the lifting balance 100, respectively, and lift the rectangular frame-shaped lifting balance 100.
In addition, four support slings 20 extend downward from the four corners of the hoisting balance 100 so as to sandwich the interior unit U, and are each attached to a hoisting jig 200 provided at the four corners of the lower end of the interior unit U.
With the above-described configuration, the interior unit U is held by the lifting sling 10, the support sling 20, and the waist belt 30, and then lifted by the lifting device L.

As shown in Figures 1 and 3, the lifting balance 100 is a member that prevents the sling member 1 from digging into the interior unit U and maintains the lifting position of the sling member 1, and is positioned between the lifting section L1 and the interior unit U in the vertical direction.
As shown in Figures 8A-8B, the hanging balance 100 is switchable between an "expanded position" in which it is expanded into a rectangular frame shape to maintain the hanging position of the sling member 1, and a "folded position" in which it is folded from the "expanded position" to store the hanging balance 100.

As shown in Figure 7, the hanging balance 100 is mainly composed of a pair of elongated members 110 that are arranged at a predetermined interval in the horizontal direction and extend opposite each other, and a pair of connecting members 120 that are arranged at a predetermined interval in the extension direction of the elongated members 110 and connect the pair of elongated members 110.
The pair of connecting members 120 are attached to one elongated member 110A so that the other elongated member 110B can be horizontally rotated relative to the other elongated member 110A.

The long member 110 is made of a long body processed from a square pipe member, and constitutes two sides of the hanging balance 100 that is unfolded into a frame shape.
The long member 110 is mainly composed of a main body 111 which extends over a long length and has a rectangular cross-section, and T-shaped sling attachment portions 112 which protrude outward from both ends of the main body 111 in the extension direction and are used to attach the suspension sling 10.

The outer surface of the sling attachment portion 112 is provided with a connection hole 113 for connecting the connecting member 120, and a sling attachment hole 114 for hanging the support sling 20, which is provided outside the connection hole 113 in the extension direction of the elongated member 110.

The connecting member 120 is made of a long body formed by processing an axial member, and is a member that constitutes the remaining two sides of the hanging balance 100 that is unfolded into a frame shape.
The connecting member 120 is mainly composed of a long, axially extending main body portion 121, and a first bent portion 122 and a second bent portion 123 which are continuous with both ends of the main body portion 121 in the extension direction and extend bent in a direction intersecting the extension direction of the connecting member 120.
The first bent portion 122 and the second bent portion 123 extend in opposite directions in a direction intersecting the extending direction of the connecting member 120, and each penetrates the elongated member 110 (connecting hole 113).

At both ends of the connecting member 120 located outside the first bent portion 122 and the second bent portion 123 in the extension direction, a plate-shaped anti-slip portion 124 is formed so as to be wider than the connecting hole 113.
The anti-slip portion 124 functions to prevent the connecting member 120 from slipping out of the elongated member 110, and also functions to support the lifting sling 10 (annular portion 12) from the inside when lifting the interior unit U.

At one end portion located more inward than the connecting hole 113 provided in one of the elongated members 110A in the extension direction of the connecting member 120, a first protrusion portion 125 is formed which protrudes from the outer surface of the one end portion in the same direction as the bending direction of the first bending portion 122.
In addition, the other end portion, which is located more inward than the connecting hole 113 provided in the other elongated member 110B in the extension direction of the connecting member 120, has a second protrusion portion 126 that protrudes from the outer surface of the other end portion in the same direction as the bending direction of the second bending portion 123.
That is, the first protrusion 125 and the second protrusion 126 protrude in opposite directions.
When the hanging balance 100 is in the "deployed position" shown in Figure 7, the outer surfaces of the first protrusion 125 and the second protrusion 126 abut against the inner surface of the elongated member 110, respectively, thereby maintaining the shape of the hanging balance 100.
In addition, when the hanging balance 100 is in the "folded position" shown in Figure 9B, the protruding surfaces of these protrusions 125, 126 abut against the inner surfaces of the elongated member 110, respectively, thereby maintaining the folded shape of the hanging balance 100.

In the above configuration, as shown in Figures 8A and 8B, the hanging balance 100 can be switched between an "expanded position" in which the pair of elongated members 110 and the pair of connecting members 120 are expanded into a rectangular frame shape, and a "folded position" in which the other elongated member 110B is folded toward the one elongated member 110A by horizontally rotating the other elongated member 110B relative to the one elongated member 110A from the "expanded position."
In detail, the first bent portion 122 of the connecting members 120A, 120B moves along the connecting hole 113 of the elongated member 110A, and the second bent portion 123 of the connecting members 120A, 120B moves along the connecting hole 113 of the elongated member 110B, thereby allowing the elongated member 110B to be rotated horizontally in one direction.

In the above configuration, the connecting member 120 is attached to the pair of elongated members 110 so as to be rotatable about an axis along the extending direction of the connecting member 120 .
Therefore, when the hanging balance 100 is in the "deployed position", the pair of connecting members 120 are disposed at different rotational positions about the above-mentioned axis, thereby fixing the hanging balance 100 in a frame-like shape.
For example, as shown in Figure 7, one connecting member 120A is arranged in a rotated position with the first bent portion 122 and the second bent portion 123 facing vertically, and the other connecting member 120B is arranged in a rotated position with the first bent portion 122 and the second bent portion 123 facing horizontally, so that the hanging balance 100 cannot rotate horizontally and remains fixed in a frame-like shape.

In the above configuration, when the hanging balance 100 is in the "deployed position", the pair of connecting members 120 are disposed at the same rotational position about the axis, thereby making the hanging balance 100 foldable.
For example, as shown in FIG. 8A, one connecting member 120A is arranged in a rotation position in which the first bent portion 122 and the second bent portion 123 are oriented horizontally, and the other connecting member 120B is arranged in a rotation position in which the first bent portion 122 and the second bent portion 123 are oriented horizontally, thereby allowing the hanging balance 100 to rotate horizontally and be folded.

As shown in Figures 1 and 5, the hanging jig 200 is a member that prevents the sling member 1 (support sling 20) from biting into the interior unit U and maintains the hanging position of the sling member 1, and is arranged at the four corners at the lower end of the interior unit U.
In detail, in order to maintain the hanging position of the support sling 20, the hanging jig 200 is hooked laterally onto the leg member U3 of the interior unit U, and is connected to the support sling 20 (annular portion 22) at a position protruding laterally from the leg member U3 toward the outside of the interior unit U.

As shown in FIG. 9, the hanging jig 200 is a member processed by joining together a plurality of plate-like members.
The hanging jig 200 is mainly composed of a jig main body portion 210 which extends over a long length, a hanging portion 220 which is provided at one end in the longitudinal direction of the jig main body portion 210 and is removably hung on the leg member U3, a sling attachment portion 230 which is provided at the other end of the jig main body portion 210 and for attaching the support sling 20 (annular portion 22), and a first elastic member 240 and a second elastic member 250 which are provided on the upper surface of the jig main body portion 210 and have elasticity.

The jig body 210 is mainly composed of an upper wall 211 and a bottom wall 212 that are formed at a predetermined interval in the vertical direction and extend in the longitudinal direction of the hanging jig 200, a connecting wall 213 that extends in the vertical direction and connects the upper wall 211 and the bottom wall 212, and a protruding wall 214 that protrudes from the other end of the upper wall 211 in the extension direction while slanting upward so as to move away from the upper wall 211.

The upper wall portion 211 and the bottom wall portion 212 extend facing each other, and the connecting wall portion 213 connects a central portion in the width direction of the upper wall portion 211 to a central portion of the bottom wall portion 212 .
A latch portion 220 is formed on each of the upper wall portion 211 and the bottom wall portion 212 at a position different from the portion to which the connecting wall portion 213 is connected.
A first elastic member 240 and a second elastic member 250 are attached to the upper surface of the portion of the upper wall portion 211 to which the connecting wall portion 213 is connected, so as to be aligned side by side.

The protruding wall portion 214 has a first protruding wall portion 214a that connects the other ends of the upper wall portion 211, the bottom wall portion 212, and the connecting wall portion 213, and protrudes while inclining upward, and a second protruding wall portion 214b that bends upward continuously from the protruding end portion of the first protruding wall portion 214a and protrudes directly upward (almost directly upward).
Of the protruding wall portions 214, a sling attachment portion 230 is formed on a side surface of the second protruding wall portion 214b.

As shown in Figure 9, the hook portion 220 is a hook groove having an approximately L-shape, and has a first hook portion 220A formed at one end of the upper wall portion 211 and a second hook portion 220B formed at one end of the bottom wall portion 212.
The first and second hook portions 220A and 220B are disposed so as to overlap each other when viewed from above. In addition, the first and second hook portions 220A and 220B are formed to have a groove that is wider than the second hook portion 220B in accordance with the shape (slightly tapered shape) of the leg member U3.

The hanging retaining portions 220A, 220B have a first groove portion 221 cut out from one end of the jig main body portion 210 in the width direction toward the other end, and a second groove portion 222 formed continuously from the first groove portion 221 and cut out toward the opposite side to the sling attachment portion 230 in the longitudinal direction of the jig main body portion 210.
The hook portions 220A and 220B are detachably hooked to the leg member U3 by guiding the leg member U3 from the first groove portion 221 to the second groove portion 222.

A movable member 223 is attached to the peripheral portion of the opening of the second retaining portion 220B, which moves between a "closed position" in which the opening is closed and an "open position" in which the opening is open.
The moving member 223 is a member for preventing the leg member U3 hooked to the hook portion 220 from coming off the hook portion 220.

In detail, the movable member 223 is attached to the upper surface of the bottom wall portion 212 at a position close to the opening of the second hook portion 220B, and has a rotating shaft 223a extending in the vertical direction, a hook-shaped movable hook 223b that rotates horizontally between a ``closed position'' and an ``open position'' around the rotating shaft 223a relative to the bottom wall portion 212, and a biasing spring 223c that is wrapped around the outer peripheral surface of the rotating shaft 223a and biases the movable hook 223b from the ``open position'' side to the ``closed position'' side.
The moving hook 223b is disposed so as to straddle the opening of the second latch portion 220B (first groove portion 221) when in the "closed position".
In addition, the movable hook 223b is positioned toward the second groove portion 222 so as to form a path for guiding the leg member U3 from the opening of the first groove portion 221 to the extended end portion of the second groove portion 222 when in the "open position".

As shown in Figure 9, the sling attachment portion 230 is an attachment hole for attaching the support sling 20 (annular portion 22) via a known shackle, and is located at a higher position than the first hook portion 220A and the second hook portion 220B.
In addition, the sling attachment portion 230 is disposed at a position above the first elastic member 240 and the second elastic member 250 .

The first elastic member 240 and the second elastic member 250 are rectangular shaped cushioning materials that are intended to suppress the swinging of the lifting jig 200 even if they come into contact with the base frame U2 when the interior unit U is lifted.
The first elastic member 240 and the second elastic member 250 are attached to the upper surface of the jig body 210 with an adhesive, and protrude upward from the jig body 210.

The first elastic member 240 is disposed on the hook portion 220 side in the longitudinal direction of the jig body 210 , and the second elastic member 250 is disposed on the sling attachment portion 230 side.
Furthermore, the second elastic member 250 is larger than the first elastic member 240 and protrudes upward beyond the first elastic member 240 .
Therefore, the first elastic member 240 and the second elastic member 250 are capable of contacting the base frame U2 when the interior unit U is lifted in accordance with the shape of the base frame U2 of various interior units U.

The above configuration can prevent deformation or damage to the interior unit U even if the lifting jig 200 comes into contact with the interior unit U during lifting. It can also prevent the lifting jig 200 from swinging and causing the sling member 1 to become unstable.

As shown in Figures 2 and 6, the moving jig 300 is used when temporarily placing the interior unit U in a state where it is raised above the floor, and is also used when moving the interior unit U on the floor, and is positioned at the four corners of the lower end of the interior unit U.
In detail, the moving jig 300 is removably attached to the base frame U2 of the interior unit U, and can move the interior unit U while holding it with the leg member U3 slightly raised above the floor F, and can also adjust the height position of the interior unit U like a jack.

As shown in Figures 10 to 13, the moving jig 300 is mainly composed of a main body 310 which is the main body of the moving jig 300, caster parts 320 which are located below the main body 310 and are used for moving on the floor, a holding part 330 which is located above the main body 310 and is used for holding the base frame U2 of the interior unit U from the side, and a height adjustment member 340 which connects the main body 310 and the holding part 330 and is attached in a state where the height position of the holding part 330 relative to the main body 310 can be changed.

The main body 310 is a main body plate made of a triangular plate body and has a horizontal flat surface.
The upper surface of the main body portion 310 is provided with an assembly hole 311 formed in the central portion of the main body portion 310 for assembling the height adjustment member 340, an attachment hole 312 formed in the corner portion of the main body portion 310 for attaching the caster portion 320, and an escape hole 313 formed in a portion that overlaps with the holding portion 330 in the vertical direction for avoiding interference with the holding portion 330.
The relief hole 313 is a substantially rectangular cutout hole formed to correspond to the outer shape of the holding portion 330 .

As shown in FIG. 10 , the caster parts 320 are spherical rotating bodies that can freely change direction and rotate, and a plurality of caster parts 320 are provided on the main body part 310 so as to surround the height adjustment member 340 .
In detail, the caster parts 320 are arranged in three parts at approximately equal intervals from the height adjustment member 340 in a plan view, and include a first caster part 320A, a second caster part 320B, and a third caster part 320C.

The caster section 320 is mainly composed of a caster axle 321 that is journaled through the mounting hole 312 of the main body section 310 and extends in the vertical direction, a caster body 322 that can rotate horizontally around the caster axle 321 relative to the main body section 310, an axle 323 that is journaled through the caster body 322 and extends in a direction perpendicular to the caster axle 321, and a spherical wheel 324 that can rotate around the axle 323 relative to the caster body 322.
With the above-described configuration, the moving jig 300 can be freely moved on the floor by rotating the caster parts 320 while swiveling.

As shown in Figs. 10 and 11, the holding portion 330 is formed by bending a plate-like member into a C-shape, and is a portion that holds the base frame U2 of the interior unit U by sandwiching it in the vertical direction.
The holding portion 330 is disposed between the adjacent first caster portion 320A and second caster portion 320B, and is disposed on an imaginary line A connecting the first caster portion 320A and the second caster portion 320B in a plan view.
In addition, the holding portion 330 is positioned on the opposite side of the central portion of the main body portion 310 from the third caster portion 320C, and is positioned on an extension of an imaginary line B connecting the central portion of the main body portion 310 and the third caster portion 320C.

The holding portion 330 is attached to the outer surface of the height adjustment member 340 and has a side wall portion 331 extending in a direction perpendicular to the height direction of the moving jig 300, and an upper wall portion 332 and a bottom wall portion 333 which protrude from the upper and lower ends of the side wall portion 331 respectively on the side opposite the height adjustment member 340.
The holding portion 330 holds the base frame U2 of the interior unit U by sandwiching it in the vertical direction with the upper wall portion 332 and the bottom wall portion 333.

In the holding portion 330, fastening holes 334, 335 that penetrate in the vertical direction are formed in the upper surfaces of the upper wall portion 332 and the bottom wall portion 333, respectively, and the fastening holes 334 and 335 are positioned so as to overlap each other when viewed from above.
As shown in Figure 13, when the holding portion 330 clamps the base frame U2, the fastening hole 335 of the holding portion 330 and the fastening hole U2d provided in the base frame U2 are in communication with each other, and the fastening bolt 336 is fastened from below, thereby attaching the moving jig 300 to the base frame U2.
Alternatively, the moving jig 300 is attached to the base frame U2 by fastening the fastening bolt 336 from above with the fastening hole 334 communicating with a fastening hole U2c provided in the base frame U2.

As shown in Figures 10 and 12, the height adjustment member 340 is mainly composed of a fixed nut 341 provided on the bottom surface of the main body 310, a fixed bolt 342 that is long in the vertical direction and passes through the main body 310 (assembly hole 311) and is fixed to the fixed nut 341, a height adjustment nut 343 that is screwed onto the fixed bolt 342, a movable bracket 344 that is attached to the fixed bolt 342 and can be moved to change the height position by adjusting the screwing position of the height adjustment nut 343, and a restricting nut 345 that is attached to the upper end of the fixed bolt 342 and restricts the movement of the movable bracket 344.

The movable bracket 344 is disposed between the restricting nut 345 and the height adjusting nut 343 in the vertical direction with the fixing bolt 342 inserted therethrough, and is supported from below by the height adjusting nut 343. In other words, the movable bracket 344 abuts against the upper surface of the height adjusting nut 343.
In detail, the movable bracket 344 has a first hollow portion 344a arranged between the regulating nut 345 and the height adjustment nut 343, through which the fixing bolt 342 can be inserted, a second hollow portion 344b arranged between the height adjustment nut 343 and the main body portion 310, through which the fixing bolt 342 can be inserted, and a connecting portion 344c attached to the outer surfaces of the first hollow portion 344a and the second hollow portion 344b for attaching the retaining portion 330.

In the above configuration, by adjusting the screwing position of the height adjustment nut 343 relative to the fixing bolt 342, the movable bracket 344 can be moved to a height position corresponding to the screwing position of the height adjustment nut 343. As a result, the holding part 330 attached to the movable bracket 344 can be raised and lowered.
The height position when the moving bracket 344 (first hollow portion 344a) abuts against the restricting nut 345 is the height position (maximum raised position) at which the holding portion 330 is raised to the highest position.
Furthermore, the height position when the moving bracket 344 (second hollow portion 344b) abuts against the main body portion 310 is the height position (lowest position) to which the holding portion 330 is lowered to the lowest.

As shown in FIG. 2, with the above configuration, the moving jig 300 is removably attached to the base frame U2 of the interior unit U, and can move the interior unit U while holding it with the leg member U3 slightly raised above the floor F, and can also adjust the height position of the interior unit U like a jack.

<Construction method using a moving jig>
Next, a method for constructing the interior unit U using the hoist 100, the hoisting jig 200, and the moving jig 300 will be described with reference to FIG.
First, the process begins with a "unit assembly process" (step S1) in which a worker (e.g., a manufacturer's installer) assembles the interior unit U in advance.

Thereafter, a worker carries in the assembled interior unit U to the construction site (step S2), which is called a "unit carrying-in process."
At this time, the interior unit U is covered with the unit cover U4 and transported by truck with the waist belt 30 wound around it.

Thereafter, a worker performs a "unit lifting process" in which the delivered interior unit U is lifted by the sling member 1 hooked to the lifting device L (step S3).
In detail, in the unit lifting process, as shown in FIG. 1, the lifting positions of the lifting sling 10 and the support sling 20 are maintained by the frame-shaped lifting balance 100 (step S3-1), the lifting jig 200 (hanging portion 220) is hung on the leg member U3 of the interior unit U (step S3-2), and the lifting jig 200 (sling mounting portion 230) is attached to the lower end of the support sling 20 (step S3-3), and then the interior unit U is lifted (step S3-4).
The steps S3-1 to S3-3 may be performed in any order.

Thereafter, a worker performs a "unit temporary placement process" in which the lifted interior unit U is temporarily placed inside the building frame in a state where it is suspended above the floor (step S4).
More specifically, in the unit temporary placement process, as shown in FIG. 2, multiple moving jigs 300 are attached to the base frame U2 of the interior unit U (step S4-1), the interior unit U is temporarily placed in a state where it is suspended above the floor (step S4-2), and the hanging jig 200 is removed from the interior unit U (step S4-3).
The temporarily placed interior unit U is stored at another position inside the building for a predetermined period of time depending on the progress of the construction work, for example. Alternatively, the interior unit U is stored at another position inside the building until a manufacturer/constructor of the interior unit U arrives.

Thereafter, a worker performs a "unit moving process" in which the temporarily placed interior unit U is moved to a predetermined position inside the framework (step S5).
More specifically, the unit moving process involves moving the interior unit U to a predetermined position inside the building frame (step S5-1) and removing the moving jig 300 from the interior unit U (step S5-2).
As shown in Fig. 2, fixing holes F1 for fixing the floor F to the building frame are formed at a predetermined interval on the upper surface of the floor F (panel floor F) inside the building frame. In this case, there is a risk that the caster part 320 of the moving jig 300 will fall into the fixing hole F1. Therefore, assuming that the moving jig 300 will fall into the fixing hole F1, the moving jig 300 is provided with three caster parts 320.

Thereafter, a worker performs a "unit installation process" in which the interior unit U is installed at a predetermined position inside the framework (step S6).
More specifically, the height and position of the interior unit U are adjusted, the leg members U3 of the interior unit U are fixed onto the floor F using an adhesive, and the piping work for the interior unit U is performed.
When the above step S6 is completed, the series of work steps is completed.

The above construction method makes it possible to realize a construction method that enables the interior unit U preassembled in a factory to be suitably installed inside the framework of a building.
In particular, by using the moving jig 300, it is possible to temporarily place the interior unit U in a state where it is raised above the floor, and to move the interior unit U in an appropriate manner.

<Other embodiments>
In the above embodiment, as shown in FIG. 2, the moving jig 300 is used to temporarily place the interior unit U and to move the interior unit U on the floor, but this can be modified without being particularly limited.
For example, it may be used when temporarily placing and moving a heavy box-like object, or when temporarily placing and moving a suspended object other than a heavy object.

In the above embodiment, as shown in FIG. 10, the moving jig 300 includes three caster parts 320, but this is not particularly limited and can be modified.
For example, in order to achieve a more compact shape, the moving jig 300 may be configured to include a single caster portion 320 .
Also, for example, the moving jig 300 may be provided with four or more caster parts 320 in order to facilitate movement on a floor (panel floor) within a building.

In the above embodiment, as shown in FIG. 12, the moving jig 300 is provided with a height adjustment means composed of a fixing bolt 342 and a height adjustment nut 343, but the height adjustment means can be modified without any particular limitation.
For example, the height adjustment member 340 may be composed of a base portion having a plurality of engagement recesses formed at intervals in the vertical direction on its outer surface and elongated in the vertical direction, and a slide portion having engagement protrusions that can engage with the engagement recesses and that moves (slides) in the vertical direction relative to the base portion. In this way, by engaging the engagement protrusions with predetermined engagement recesses, the height position of the slide portion can be changed, and the height position of the holding portion attached to the slide portion can be changed.
Alternatively, a height adjustment means having a known assembly structure may be used.

In the above embodiment, the moving jig and the construction method including the moving jig according to the present invention have been mainly described.
However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof.

S Construction system U Interior unit U1 Unit body U2 Base frame U2c, U2d Fastening hole U3 Leg member U4 Unit cover U4a Cover opening/closing section 1 Sling member 10 Suspension sling 11, 12 Annular section 20 Support sling 21, 22 Annular section 23 Tongue section 30 Waist belt 100 Suspension balance 110 (110A, 110B) Long member 111 Main body 112 Sling attachment section 113 Connection hole 114 Sling attachment hole 120 (120A, 120B) Connection member 121 Main body 122 First bent section 123 Second bent section 124 Slip-out prevention section 125 First protrusion 126 Second protrusion 200 Suspension jig 210 Jig main body 211 Upper wall section 212 Bottom wall section 213 Connection wall section 214 Protruding wall section 214a First protruding wall portion 214b Second protruding wall portion 220 Hook portion 220A First hook portion 220B Second hook portion 221 First groove portion 222 Second groove portion 223 Moving member 223a Rotating shaft 223b Moving hook 223c Urging spring 230 Sling mounting portion 240 First elastic member 250 Second elastic member 300 Moving jig 310 Main body portion 311 Assembly hole 312 Mounting hole 313 Relief hole 320 Caster portion 320A First caster portion 320B Second caster portion 320C Third caster portion 321 Caster shaft 322 Caster main body 323 Axle 324 Wheel 330 Holding portion 331 Side wall portion 332 Upper wall portion 333 Bottom wall portion 334, 335 Fastening hole 336 Fastening bolt 340 Height adjustment member 341 Fixing nut 342 Fixing bolt 343 Height adjustment nut 344 Moving bracket 344a First hollow portion 344b Second hollow portion 344c Connection portion 345 Restriction nut L Lifting device L1 Lifting portion F Floor (panel floor)
F1 Fixing hole

Claims (7)

A moving tool for moving a heavy object on a floor,
A main body portion that serves as a main body of the moving jig;
A caster unit provided below the main body for moving the device on a floor;
a holding portion provided at a position above the main body portion and configured to hold a held portion provided on the heavy object from a side;
a height adjustment member that connects the main body and the holding portion and is attached in a state in which a height position of the holding portion can be changed with respect to the main body,
The holding portion holds the held portion provided on the bottom of the heavy object so as to sandwich the held portion from the side,
The height adjustment member is disposed in a central portion of the main body,
The moving jig is characterized in that the caster portion is provided in plurality so as to surround the height adjustment member. A moving tool for moving a heavy object on a floor,
A main body portion that serves as a main body of the moving jig;
A caster unit provided below the main body for moving the device on a floor;
a holding portion provided at a position above the main body portion and configured to hold a held portion provided on the heavy object from a side;
a height adjustment member that connects the main body and the holding portion and is attached in a state in which a height position of the holding portion can be changed with respect to the main body,
The height adjustment member is disposed in a central portion of the main body,
A moving jig, characterized in that a relief hole is formed in a portion of the main body that overlaps with the holding portion in the vertical direction to avoid interference with the holding portion. the holding portion is attached to an outer surface side of the height adjustment member and has a side wall portion extending in a direction perpendicular to the height direction of the moving jig, and an upper wall portion and a bottom wall portion protruding from an upper end portion and a lower end portion of the side wall portion respectively to a side opposite to the height adjustment member side,
3. The moving jig according to claim 1 , wherein the holding portion holds the held portion provided on the bottom of the heavy object by vertically sandwiching the held portion with the upper wall portion and the bottom wall portion. The moving jig is a jig for moving the interior unit which is the heavy object,
The holding portion holds a base frame provided on a bottom surface of the interior unit so as to sandwich the base frame from the side,
The height adjustment member is disposed in a central portion of the main body,
4. The moving jig according to claim 1, wherein a plurality of the casters are provided so as to surround the height adjustment member. The main body portion is a plate-shaped main body plate,
The caster parts are attached to the corners or periphery of the corners of the main plate, and three of them are arranged at equal intervals from the center of the main plate;
The holding portion is
The caster member is disposed between a first caster portion and a second caster portion adjacent to each other, and is disposed on a virtual line connecting the first caster portion and the second caster portion in a plan view,
The moving jig described in claim 4, characterized in that it is positioned on the opposite side of the central portion of the main body plate to the third caster portion, and is positioned on an extension of an imaginary line connecting the central portion of the main body plate and the third caster portion. The main body portion is a plate-shaped main body plate,
The height adjustment member is
a fixing bolt that is long in the vertical direction and is assembled through an assembly hole provided in the main body plate, and a height adjustment nut that is screwed onto a shaft portion of the fixing bolt,
6. The moving jig according to claim 4, wherein the height of the holding portion can be changed by adjusting the screwing position of the height adjustment nut. A construction method using the moving jig according to any one of claims 1 to 6,
A unit assembly process in which heavy interior units are assembled;
a unit delivery process of delivering the assembled interior unit to a construction site;
a unit lifting process of lifting the delivered interior unit by a sling member hooked to a lifting device;
a unit temporary placement process for temporarily placing the lifted interior unit inside the framework of the building in a state where the interior unit is suspended above the floor;
a unit moving process of moving the temporarily placed interior unit to a predetermined position inside the framework;
A unit installation process of installing the interior unit at a predetermined position inside the framework,
In the unit temporary placement step, a plurality of the moving jigs are attached to a base frame provided on a bottom surface of the interior unit,
The construction method using a moving jig, wherein the unit moving step comprises removing the moving jig from the interior unit which has been moved to a predetermined position inside the structure.

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