JP7616602B2 - SHEET SUPPORT TOOL, SHEET INSTALLATION JIG, AND SHEET INSTALLATION METHOD - Google Patents

Description

The present invention relates to a sheet support tool, a sheet installation tool, and a sheet installation method, and in particular to a sheet support tool, a sheet installation tool, and a sheet installation method used when laying a sheet on the earthen floor of a foundation.

As shown in JP 63-83346 A (Patent Document 1), multiple sheets for the purpose of termite or moisture prevention are laid on the dirt floor of the foundation. In this case, the ends of each sheet are generally raised about 50 mm along the side of the foundation rise and then attached and fixed with adhesive tape or the like.

Japanese Unexamined Patent Publication No. 63-83346

The above-mentioned sheets are delivered to the site in a rolled state (i.e., as sheet roll members), and the sheet roll members are transported and laid down repeatedly at the site. The prescribed sheet width is usually larger than one module (e.g., 900 to 1000 mm), which is the standard building dimension for a building, and is about twice that width, making it difficult to transport the sheet roll members.

In addition, conventionally, the sheet was laid by rolling the sheet roll member over the dirt floor, which could have been scratched by crushed stone or the like. Furthermore, the sheet was cut (in the length direction) after the sheet roll member was rolled, with the sheet resting on the top edge of the foundation rise, which could have been scratched by the anchor bolts protruding from the foundation rise. It was also difficult to cut the sheet straight while it was aligned with the side of the foundation rise.

As mentioned above, the width of the sheet wound on the sheet roll member is about two modules, so the sheet must be cut along its length to adjust the sheet width on-site. Conventionally, workers would cut the sheet with scissors or the like after laying it on the dirt floor, which was not only time-consuming but also time-consuming. Also, cutting work by one person was difficult in strong winds.

The present invention has been made to solve the above problems, and its purpose is to provide a sheet support tool, a sheet installation jig, and a sheet installation method that can improve the ease of installation when laying sheets on a dirt floor.

The sheet support according to one aspect of the present invention is a sheet support that supports, on a foundation rising portion, a sheet roll member in the form of a roll of sheet to be laid on the dirt floor of a foundation, and includes a pair of facing portions arranged facing each other in the foundation longitudinal direction, which is the longitudinal direction of the foundation rising portion, and provided with a pair of receiving portions for receiving ends of the core material of the sheet roll member, a pair of legs arranged apart from each other in the foundation width direction, which is the width direction of the foundation rising portion, and connected to both sides of the lower end of the facing portions, and casters fixed to the lower part of each leg and movable in the foundation longitudinal direction. The height of the lower end center of the facing portions based on the top surface of the foundation rising portion is higher than the top end height of the anchor bolt protruding from the top surface of the foundation rising portion.

Preferably, the seat support further includes a pair of hanging members that extend downward from both outer sides of the pair of legs and abut or are adjacent to both side surfaces of the foundation riser.

Preferably, the seat support further includes a position adjustment member for adjusting the position of at least one of the pair of hanging members in the base width direction.

It is also desirable that at least one of the pair of hanging members be rotatable about an axis fixed to the leg and extending in the width direction of the foundation.

Preferably, the position adjustment member includes a bolt that protrudes outward from the leg and is passed through a through hole provided in the hanging member, and a nut that screws onto the bolt to fix the position of the hanging member, and the hanging member is provided so as to be rotatable around the bolt as a rotation axis.

Preferably, the inner surface of the hanging member is provided with a rolling element that slides against the side surface of the foundation riser.

Preferably, the seat support is divided into a first support base having one of a pair of opposing portions and a second support base having the other of the pair of opposing portions, and each of the first support base and the second support base is provided with a pair of legs and casters.

A sheet application tool according to another aspect of the present invention includes the sheet support tool described above and a sheet cutter that is placed in the area between the first and second support bases on the foundation rise and is used to pull out the sheet from the sheet roll member and cut it.

A sheet installation method according to yet another aspect of the present invention is a sheet installation method using the sheet installation jig described above, and includes the steps of attaching the sheet support to the foundation rise, fitting the end of the core material into the receiving part of the sheet support, moving the sheet support to the sheet installation position, pulling the sheet from the sheet roll member to the dirt floor side and laying it when the sheet width adjustment is not required, and placing a sheet cutter on the foundation rise and cutting the sheet as it is pulled from the sheet roll member when the sheet width adjustment is required.

According to the present invention, the sheet roll member can be moved over the foundation rise while supported by the sheet support, so that the sheet roll member can be moved safely and smoothly to the sheet installation position. In addition, the sheet can be pulled from the sheet roll member supported by the sheet support on the foundation rise and laid on the dirt floor, so that damage to the sheet can be prevented and the sheet can be easily cut while aligned with the side of the foundation rise. Therefore, according to the present invention, the workability of the sheet can be improved.

1 is a diagram showing a schematic configuration of a sheet application jig according to an embodiment of the present invention; 2A and 2B are diagrams showing the configuration of a portion of a seat support device according to an embodiment of the present invention, in which (A) is a diagram showing one of the support bases of the seat support device as viewed from the direction indicated by IIA in FIG. 1 (from the inside), and (B) is a diagram showing this support base as viewed from the direction indicated by IIB in FIG. 2A (from the front). 5A and 5B are diagrams illustrating a schematic diagram of a function of a seat support device according to an embodiment of the present invention. FIG. 4 is a side view of the sheet cutter according to the embodiment of the present invention, as viewed from the direction IV in FIG. 2 is a flowchart showing a sheet application method according to an embodiment of the present invention. 6A and 6B are schematic diagrams showing steps P3 and P4 of FIG. 5, respectively. 6A and 6B are schematic diagrams showing steps P5 and P6 in FIG. 5, respectively.

The embodiment of the present invention will be described in detail with reference to the drawings. Note that the same or corresponding parts in the drawings are given the same reference numerals and their description will not be repeated.

<Outline of the sheet installation jig>
Fig. 1 is a diagram showing a schematic configuration of a sheet application jig 1. Referring to Fig. 1, the sheet application jig 1 is a jig for applying a sheet to a dirt floor portion 92 surrounded by a foundation rise portion 91, and includes a sheet support tool 2 and a sheet cutter tool 5. The foundation rise portion 91 is a building framework portion (building component) that extends horizontally with a constant width. An arrow A2 in Fig. 1 indicates the longitudinal direction of the foundation rise portion 91 (hereinafter referred to as the "foundation longitudinal direction").

The sheet support 2 and sheet cutter 5 are placed on the upper surface 91c of the foundation riser 91. A number of anchor bolts 80 are arranged protruding upward on the upper surface 91c of the foundation riser 91. The protruding height of the anchor bolts 80 may vary depending on the series of the building, but is approximately 60 to 70 mm.

The sheet support 2 is a jig that supports the sheet roll member 10, on which the sheet is wound in a roll shape, on the foundation riser 91. In this embodiment, the sheet support 2 is divided into two support bases (sheet support bases) 3 and 4 that respectively support both ends of the sheet roll member 10. In other words, the two support bases 3 and 4 form a pair to constitute the sheet support 2.

The sheet cutter 5 is a tool for pulling out and cutting the sheet from the sheet roll member 10 toward the floor section 92 while both ends of the sheet roll member 10 are supported on the foundation rise section 91 by a pair of supports 3, 4. The direction in which the sheet is pulled out from the sheet roll member 10, i.e., the floor section 92 side, is indicated by arrow A1 in FIG. 1, and this direction is referred to as the front. The opposite side of arrow A1 is referred to as the rear. The front and rear correspond to one side and the other side, respectively, in the width direction of the foundation rise section 91 (hereinafter referred to as the "foundation width direction").

Specific configuration examples of the sheet support tool 2 and the sheet cutter tool 5 are described below.

<Configuration example of sheet support tool>
An example of the configuration of the seat support 2 will be described with reference to Fig. 1 and Fig. 2. Fig. 2(A) is a view of one (first) support base 3 of the seat support 2 as viewed from the direction indicated by IIA in Fig. 1 (from the inside), and Fig. 2(B) is a view of the support base 3 as viewed from the direction indicated by IIB in Fig. 1 (from the front).

Referring to FIG. 1, the seat support 2 comprises a pair of facing parts 21 arranged facing each other in the longitudinal direction of the foundation, a pair of legs 23 connected to both sides of the lower end of the facing parts 21, and casters 24 fixed to each leg 23 and movable in the longitudinal direction of the foundation. The facing parts 21 and the legs 23 are typically made of wood material. The same is true of the hanging members 25 and 26 described below.

A receiving portion 22 that receives an end of the core material 11 of the sheet roll member 10 is provided facing each other on each facing portion 21. The pair of legs 23 are arranged apart from each other in the foundation width direction, and a caster 24 is provided for each leg 23. This allows the sheet roll member 10 supported by the sheet support 2 to be moved along the foundation longitudinal direction.

In this embodiment, the seat support 2 is divided into a support base 3 having one of a pair of opposing portions 21 (on the right side of the paper in FIG. 1) and a support base 4 having the other of the pair of opposing portions (on the left side of the paper in FIG. 1), and each of these support bases 3, 4 is provided with a pair of legs 23 and multiple casters 24. This makes it easy to transport the seat support 2. The support bases 3, 4 are configured to be symmetrical on the left and right.

2(A) and (B), the facing portion 21 is formed of, for example, a plate-like member having a substantially rectangular shape. The receiving portion 22 is formed in a substantially U-shape, and the end portion of the core material 11 can be fitted in from above. When the sheet is drawn out from the sheet roll member 10, the core material 11 rotates in the receiving portion 22 together with the sheet roll member 10. The legs 23 are arranged crosswise on both sides of the lower end of the facing portion 21, and are formed of, for example, a rectangular column member having a length in the longitudinal direction of the foundation. When the support base 3 (or 4) is viewed from the front, the facing portion 21 and the legs 23 are connected and fixed in an inverted T-shape. Note that the facing portion 21 and the legs 23 do not have to be separate members, and may be integrally molded from a single member. In other words, in this specification, "connection" is not limited to a form in which separate objects are connected.

As shown in FIG. 2(B), multiple (e.g., two) casters 24 are aligned in the longitudinal direction of the base for each leg 23. This allows each support base 3, 4 to stand on its own.

As shown in FIG. 2(A), the height H1 of the lower center of each facing portion 21 based on the upper surface 91c of the foundation rise portion 91 is higher than the maximum height (upper end height) H2 of the anchor bolt 80 protruding from the upper surface 91c of the foundation rise portion 91. In FIG. 2(A), the anchor bolt 81 having the maximum height H2 and the anchor bolt 82 having a lower height are shown by imaginary lines. The height H2 is, for example, 70 mm. This allows the sheet support 2 to be freely moved along the longitudinal direction of the foundation without considering the position of the anchor bolt 80.

The height of the upper end of the leg 23 may be lower than the maximum height H2 of the anchor bolt 80. In this case, as shown in the figure, the center of the lower end of the facing portion 21 may be cut out so as not to interfere with the anchor bolt 80. Note that the range 91r in which the anchor bolts 80 (81, 82) can be arranged relative to the overall width (W1) of the foundation rise portion 91 is determined, and the distance W2 between the pair of legs 23 is greater than the width of this range 91r.

The seat support 2 further includes a pair of hanging members 25, 26 that extend downward from both outer sides of the pair of legs 23 and abut or are close to both side surfaces 91a, 91b of the foundation rise portion 91. The hanging members 25, 26 are formed, for example, from a plate-like member having a substantially rectangular shape. The hanging member 25 abuts or is close to the front side surface 91a, and the hanging member 26 abuts or is close to the rear side surface 91b. This prevents the seat support 2 from meandering or falling off when it moves, so that the seat support 2 can be moved stably.

The inner surfaces of the hanging members 25, 26 are provided with spherical or semispherical rolling elements 27, and it is desirable that the hanging members 25, 26 are configured so that the rolling elements 27 (only) come into contact with the side surfaces 91a, 91b of the foundation riser 91. As a result, when the sheet support 2 moves, the rolling elements 27 come into sliding contact with the side surfaces 91a, 91b of the foundation riser 91, allowing the sheet support 2 to move smoothly. In addition, the effects of unevenness on the side surfaces 91a, 91b of the foundation riser 91 can be absorbed.

The rear hanging member 26 is securely fixed to the leg 23 by a fixing member (not shown) such as a screw. In other words, the upper end of the hanging member 26 is fixed in face contact with the outer surface of the leg 23. In contrast, the front hanging member 25 is preferably provided so that its position in the base width direction is adjustable. In other words, the seat support 2 preferably further includes a position adjustment member 30 for adjusting the position of the hanging member 25 in the base width direction (front-rear position).

The position adjustment member 30 includes a bolt 31 that protrudes outward (forward) from the leg 23, and nuts 32, 33 that screw into the bolt 31. The bolt 31 is a so-called height adjustment bolt, and is fixed to the leg 23. The hanging member 25 is provided with a through hole (not shown) that penetrates in the plate thickness direction, and the bolt 31 is passed through this through hole. The hanging member 25 is clamped and fixed in position by nuts 32, 33. As shown in Figures 2 (A) and 3 (A), the position of the hanging member 25 can be adjusted by adjusting the position of the nuts 32, 33 in the length direction of the bolt 31 according to the width W1 of the foundation rise portion 91. Therefore, the sheet support 2 of this embodiment can be used for the foundations of various series of buildings. The width W1 of the foundation rise portion 91 is determined to be in the range of, for example, 170 mm to 220 mm according to the series of the building.

Here, a partition foundation is usually placed in an intersecting manner on the front side of the foundation rise portion 91. Therefore, it is more preferable that the hanging member 25 on the front side is provided so as to be rotatable around the bolt 31 as an axis. In this embodiment, the bolt 31 for adjusting the position of the hanging member 25 also serves as the rotation axis of the hanging member 25. In this case, as shown in the figure, there is one bolt 31 supporting the hanging member 25.

2(B), the hanging member 25 is formed in a vertically elongated shape, and the width (length in the longitudinal direction of the foundation) of the hanging member 25 is sufficiently smaller than the width of the rear hanging member 26. In addition, the shortest distance L1 from the axis of the bolt 31 to the upper corner of the hanging member 25 is less than the shortest distance L2 between the axis of the bolt 31 and the upper surface 91c of the foundation rise portion 91 when the sheet support 2 moves. As a result, when the hanging member 25 hits the partition foundation 93 as shown in FIG. 3(B), the reaction causes the hanging member 25 to rotate around the bolt 31 and ride up onto the partition foundation 93.

If the sheet support 2 is moved further after the hanging member 25 has climbed onto the partition foundation 93, the hanging member 25 will hang down again under its own weight when it passes over the partition foundation 93, and will come into contact with the side surface 91a of the foundation rise portion 91 as described above. Therefore, according to this embodiment, the sheet support 2 can be reliably moved to the desired position (sheet installation position) regardless of the presence or absence of the partition foundation 93. Note that a rolling bearing 40 may be provided around the through hole of the hanging member 25 to allow the hanging member 25 to rotate more smoothly.

<Example of the configuration of the sheet cutter>
An example of the configuration of the sheet cutting tool 5 will be described with reference to Fig. 1 and Fig. 4. Fig. 4 is a side view of the sheet cutting tool 5, as viewed from the direction IV in Fig. 1.

As shown in FIG. 1, the sheet cutter 5 is disposed below the sheet roll member 10. The sheet cutter 5 includes a base portion 51 placed within an area between a pair of supports 3 and 4 on the foundation rise portion 91, a pair of abutment members 52 and 53 extending downward from both front and rear sides of the base portion 51 and abutting or adjacent to both side surfaces 91a of the foundation rise portion 91, and a cutting member 54 protruding from above the front end portion of the base portion 51. The base portion 51 and the abutment members 52 and 53 are typically made of a wood material, and the cutting member 54 is typically made of a metal.

The base portion 51 has a generally rectangular parallelepiped shape and is positioned so that the longitudinal direction of the base portion 51 coincides with the width direction of the foundation. In other words, the base portion 51 is positioned so as to intersect with the longitudinal direction of the foundation. The longitudinal length of the base portion 51 is slightly shorter than the minimum width dimension of the foundation rise portion 91. As shown in the figure, the corners at the rear upper end of the base portion 51 may be cut out at an angle. This allows the sheet cutter 5 to be made lighter.

The cutting member 54 has a blade 56a that extends in the front-rear direction. The cutting member 54 is preferably formed in a hook shape and fixed so that the opening is located on the rear side. In other words, it is preferable that the hook-shaped cutting member 54 with an open rear side is positioned to protrude from above the front end of the base portion 51. This allows the sheet pulled out from the sheet roll member 10 to be inserted into the hook-shaped cutting member 54 and pulled forward, thereby cutting the sheet straight. Therefore, the sheet can be cut easily and accurately.

More specifically, the cutting member 54 has a lower piece 55 and an upper piece 56 whose front ends are connected, and a blade 56a is formed along the lower edge of the upper piece 56. The angle between the lower piece 55 and the upper piece 56 is less than 30°. In use, the lower piece 55 of the cutting member 54 extends obliquely upward toward the connecting portion 57 with the upper piece 56, and the upper piece 56 extends obliquely downward toward the connecting portion 57. In other words, the blade 56a is positioned facing the rear side. This allows the sheet to be easily cut by the blade 56a of the upper piece 56 simply by inserting a sheet between the lower piece 55 and the upper piece 56 and pulling it straight forward.

At least a portion of the blade 56a of the cutting member 54 is positioned so that it projects forward from the base riser 91 when attached. The hook-shaped cutting member 54 may be formed from the tip of a commercially available string cutter. In this case, the handle portion 70 may be built into the base 51, as shown by the dashed line in Figure 4.

The blade 56a may be arranged horizontally facing downward, or vertically facing backward. The cutting member 54 does not have to be shaped like a hook, in which case the blade 56a may be arranged facing upward.

Here, the height H3 (height of the lower end) of the blade 56a of the cutting member 54 is higher than the maximum height H2 (Figure 2 (A)) of the anchor bolt 80. This prevents the sheet from interfering with the anchor bolt 80 and being damaged when the sheet is cut.

In addition, it is desirable that the height H3 (height of the front end) of the blade 56a of the cutting member 54 is approximately equal to the lowest end height H4 of the sheet roll member 10 supported by the sheet support 2. The lowest end height H4 of the sheet roll member 10 corresponds to the height of the point of action when the sheet is pulled. Specifically, the height H3 of the blade 56a of the cutting member 54 is set to be the same as the lowest end height H4 of the sheet roll member 10, or if different, the difference is set to be within 5 mm. The lowest end height H4 is the height obtained by subtracting the radius (before use) of the sheet roll member 10 (for example, about 70 mm) from the center height (for example, about 190 mm) of the core material 11 of the sheet roll member 10 based on the upper surface 91c of the foundation rise portion 91, and is, for example, about 120 mm. In this way, by making the height H3 of the blade 56a of the cutting member 54 approximately equal to the height of the point of action when the sheet is pulled, the sheet can be cut easily and accurately.

The abutting members 52, 53 are, for example, made of a plate-like member having a substantially rectangular shape. The front abutting member 52 is firmly fixed to the leg 23 by a fixing member 71 such as a screw. That is, the upper end of the abutting member 52 is fixed in a state of surface contact with the outer surface of the base 51. In contrast, it is preferable that the rear abutting member 53 is provided so that its position in the foundation width direction can be adjusted. That is, it is preferable that the sheet cutter 5 further includes a position adjustment member 60 for adjusting the front-rear position of the rear abutting member 53. By fixing the position of the front abutting member 53, the degree of protrusion of the cutting member 54 from the position of the side surface 91a of the foundation rise portion 91 (front end position) can be made constant regardless of the width W1 of the foundation rise portion 91.

The position adjustment member 60 includes a bolt 61 that protrudes outward (rearward) from the base portion 51, and a nut 62 that screws onto the bolt 61. The bolt 61 is a so-called height adjustment bolt, and is fixed to the base portion 51. The abutment member 53 is provided with a through hole (not shown) that penetrates in the plate thickness direction, and the bolt 61 is passed through this through hole. The nut 62 is located only on the outside of the abutment member 53, and in the attached state, the abutment member 53 comes into contact with the side surface 91b of the foundation rise portion 91 and the nut 62, thereby restricting misalignment in the foundation width direction.

As shown in FIG. 4, the position of the rear abutment member 53 can be adjusted by adjusting the position of the nut 62 in the longitudinal direction of the bolt 61 according to the width W1 of the foundation rise portion 91. Therefore, the sheet cutter 5 of this embodiment can be used for the foundations of various series of buildings.

As shown in FIG. 4, the central axis B1 of the bolt 61 is inclined with respect to the horizontal line B2 so that the rear end (tip) is slightly lower than the front end (base end). The inclination angle of the central axis B1 is less than 10°, and preferably less than 5°. In order to set the inclination angle of the bolt 61 to a predetermined angle, a long nut (not shown) inclined at a predetermined angle may be embedded in the base portion 51, and the base end of the bolt 61 may be engaged with the long nut.

In this case, the rear contact member 53 is inclined so that the lower end is slightly further forward than the upper end, so that the contact member 53 contacts the side surface 91b of the foundation rise portion 91 only at the lower edge 53a. The front contact member 52 extends straight in the vertical direction without inclining, so that the entire portion 52a below the base portion 51 contacts the side surface 91a of the foundation rise portion 91. This makes it possible to prevent or suppress the sheet cutter 5 from coming off the front side from the foundation rise portion 91 when the sheet is pulled forward from the sheet roll member 10 and cut by the cutting member 54.

<Sheet installation method>
Further referring to Fig. 5, a sheet application method using the sheet application jig 1 including the sheet support tool 2 and the sheet cutter 5 will be described. Fig. 5 is a flow chart showing the sheet application method (steps) in this embodiment.

Referring to FIG. 5, first, the sheet support 2 is attached to the foundation rise portion 91 (step P1). Specifically, the pair of support bases 3, 4 constituting the sheet support 2 are placed on the foundation rise portion 91 so that the receiving portions 22 face each other, and then the position of the hanging members 25 on the front side of each support base 3, 4 is adjusted, and the foundation rise portion 91 is sandwiched between the pair of hanging members 25, 26. As a result, the rolling elements 27 provided on the inner surfaces of the hanging members 25, 26 come into contact with the side surfaces 91a, 91b of the foundation rise portion 91, so that the support bases 3, 4 are attached in a state that allows smooth movement in the longitudinal direction of the foundation.

Next, the ends of the core material 11 of the sheet roll member 10 are fitted into the sheet support 2 (step P2). Specifically, both ends of the core material 11 are fitted into the receiving portions 22 of the support bases 3 and 4. As shown in FIG. 2, if the receiving portion 22 is formed in a U-shape, the ends of the core material 11 are fitted from above. As a result, both ends of the sheet roll member 10 are supported by the pair of support bases 3 and 4 in a rotatable state on the foundation rise portion 91. Note that a separation prevention member 22a may be provided at the upper end of the receiving portion 22 to prevent the core material 11 from coming off.

Once the attachment of the sheet roll member 10 to the sheet support 2 is completed in this manner, the sheet roll member 10 is moved in this state to the sheet application position (step P3). Specifically, the sheet roll member 10 is grasped and moved along the longitudinal direction of the foundation to the sheet application position.

As shown in FIG. 6(A), a number of anchor bolts 80 are positioned along the longitudinal direction of the foundation on the upper surface 91c of the foundation rise portion 91, and a partition foundation 93 is arranged so as to intersect with the foundation rise portion 91. However, according to this embodiment, the sheet roll member 10 can be moved safely and smoothly without being affected by these factors.

After moving the sheet roll member 10 to the sheet application position, if the sheet width does not need to be adjusted, the sheet is pulled forward from the sheet roll member 10 in this state and laid on the floor area 92 (step P4), as shown in FIG. 6(B). The sheet is pulled out, for example, from the lower side of the sheet roll member 10. After the sheet is pulled out until it reaches the foundation rise portion (not shown) facing the foundation rise portion 91, the rear end of the sheet is cut off with scissors or the like.

In this way, since there is no need to roll the sheet roll member 10 onto the dirt floor portion 92, this embodiment can prevent damage to the sheet. In addition, even after the sheet has been pulled out the length of the dirt floor portion 92, the rear end of the sheet continues to be supported on the foundation rise portion 91, so cutting the sheet in the length direction can be easily performed while aligning it with the side surface 91a of the foundation rise portion 91. In addition, the sheet can be prevented from being damaged by the anchor bolts 80 during the cutting operation.

When the sheet laying operation is completed, the sheet roll member 10 is again moved to the sheet laying position (step P3). In other words, it is moved to the next sheet laying position. When laying the sheet at the edge of the dirt floor section 92, such as near the partition foundation 93, it may be necessary to adjust the width of the sheet. In such cases, the above-mentioned sheet cutter 5 is attached to the foundation rise section 91 (step P5).

Specifically, as shown in FIG. 7(A), the base 51 of the sheet cutter 5 is placed below the sheet roll member 10, i.e., between the pair of support stands 3, 4, and the position of the rear abutment member 53 is adjusted to sandwich the foundation rise portion 91 between the pair of abutment members 52, 53. This brings the inner surfaces of the abutment members 52, 53 into contact with the side surfaces 91a, 91b of the foundation rise portion 91, respectively. Then, as shown in FIG. 7(A), the position of the sheet support 2 is adjusted using the scale 84 so that the length from the longitudinal end of the sheet roll member 10 to the cutting member 54 of the sheet cutter 5 is the desired width (for example, 1 m width).

Once the positions of the sheet support 2 and the sheet cutter 5 are determined in this way, the sheet pulled out from the sheet roll member 10 is hooked onto the hook-shaped cutting member 54, and in this state, the sheet is pulled forward as shown in FIG. 7(B). This causes the sheet to be cut along the pulling direction (step P6). In this step as well, the sheet is pulled out until it reaches the foundation rise portion (not shown) facing the foundation rise portion 91, and then the rear end of the sheet is cut with scissors or the like, so that the sheet cut to the desired width can be laid directly on the earthen floor portion 92.

As described above, according to this embodiment, the sheet can be cut while being pulled while the sheet roll member 10 is supported on the foundation rise portion 91, so the sheet can be cut with high precision regardless of the skill of the worker. In addition, since there is no need to cut the sheet while it is spread out on the dirt floor portion 92, damage to the sheet caused by crushed stone, etc. can be prevented. Furthermore, cutting work can be easily performed by one person even in strong winds.

When cutting of the sheet is completed, remove the sheet cutter 5 from the foundation riser 91 (step P7) and repeat the steps from step P3 onwards.

As described above, according to this embodiment, the sheet application jig 1 includes the sheet support tool 2 and the sheet cutter 5, which improves ease of application when laying the sheet on the dirt floor 92. It is also possible to provide the sheet support tool 2 and the sheet cutter 5 separately.

<Modification>
In the present embodiment, the rotation axis of the hanging member 25 on the front side of the seat support 2 also serves as the bolt 31 for adjusting the position, but the present invention is not limited to such an example. Specifically, the position of the hanging member 25 on the front side may be fixed (only rotatable), and the position of the hanging member 26 on the rear side may be adjustable. In this case, a height adjustment bolt (not shown) for adjusting the position of the hanging member 26 on the rear side is provided separately from the bolt 31. Alternatively, both of the hanging members 25, 26 may be adjustable in position and rotatable. In this way, the seat support 2 only needs to include a position adjustment member for adjusting the position of at least one of the pair of hanging members 25, 26, and at least one of the pair of hanging members 25, 26 only needs to be provided rotatable about the axis (bolt 31) fixed to the leg 23.

Alternatively, it is desirable for the sheet support 2 to have a position adjustment member 30 so that it can be adapted to various series of building foundations, but the position adjustment member 30 is not required when used for foundations of a specific width dimension.

In addition, in this embodiment, the seat support 2 is divided into two support bases 3 and 4, but this is not limited to this example. For example, a pair of facing parts 21 may be fixed to a common leg and integrated.

The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is indicated by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims.

1 Sheet installation jig, 2 Sheet support, 3, 4 Support stand, 5 Sheet cutter, 10 Sheet roll member, 21 Facing part, 22 Receiving part, 23 Leg part, 24 Caster, 25, 26 Hanging member, 27 Rolling body, 30, 60 Position adjustment member, 51 Base part, 52, 53 Contact member, 54 Cutting member, 55 Lower piece, 56 Upper piece, 56a Blade, 81, 82 Anchor bolt, 91 Foundation rise part, 92 Earthen floor part, 93 Partition foundation.

Claims (9)

A sheet support device that supports a sheet roll member, on a foundation rise, on which a sheet to be laid on the earthen floor of a foundation is wound in a roll shape,
A pair of facing portions are arranged facing each other in the foundation longitudinal direction, which is the longitudinal direction of the foundation rising portion, and are provided with a pair of receiving portions that receive ends of the core material of the sheet roll member;
A pair of legs arranged apart from each other in a foundation width direction, which is the width direction of the foundation rising portion, and connected to both sides of the lower end of the facing portion;
Casters are fixed to the lower part of each leg and movable in the longitudinal direction of the base,
A sheet support device in which the height of the lower end center of the facing portion based on the upper surface of the foundation rise portion is higher than the height of the upper end of the anchor bolt protruding from the upper surface of the foundation rise portion. The seat support device according to claim 1, further comprising a pair of hanging members extending downward from both outer sides of the pair of legs and abutting or adjacent to both side surfaces of the foundation rising portion. The seat support device according to claim 2, further comprising a position adjustment member for adjusting the position of at least one of the pair of hanging members in the base width direction. The seat support device according to claim 2 or 3, wherein at least one of the pair of hanging members is rotatably mounted on an axis fixed to the leg and extending in the width direction of the foundation. the position adjustment member includes a bolt that protrudes outward from the leg portion and is passed through a through hole provided in the hanging member, and a nut that screws onto the bolt to fix a position of the hanging member,
The seat support device according to claim 3 , wherein the hanging member is rotatable about the bolt as a rotation axis. The sheet support according to any one of claims 2 to 5, wherein the inner surface of the hanging member is provided with a rolling body that slides against the side surface of the foundation riser. The support base is divided into a first support base having one of the pair of opposing portions and a second support base having the other of the pair of opposing portions,
The seat support device according to any one of claims 1 to 6, wherein each of the first support base and the second support base is provided with the pair of legs and the casters. The seat support according to claim 7;
A sheet application jig comprising: a sheet cutting tool that is placed in the area between the first and second support bases on the foundation rise portion, and that pulls out and cuts the sheet from the sheet roll member. A sheet application method using the sheet application jig according to claim 8,
Attaching the sheet support to the foundation riser;
a step of fitting an end portion of the core material into the receiving portion of the sheet support;
moving the sheet support to a sheet application position;
When width adjustment of the sheet is not required, a step of pulling out the sheet from the sheet roll member and laying it on the earthen floor portion side;
This sheet application method includes a step of, when the width of the sheet needs to be adjusted, placing the sheet cutting tool on the foundation rising portion and cutting the sheet while pulling it out from the sheet roll member.

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