JP7401110B2 - Spacers and how to use them, and how to lay lattices - Google Patents

Description

Applicable to Article 30, Paragraph 2 of the Patent Act Published at the 27th “Architecture and Building Materials Exhibition 2021” from March 9th to March 12th, 2021

The present invention is a method for holding a lattice-like body formed of vertical strips and horizontal strips in a lattice-like structure, such as a welded wire mesh or a net-like fence buried in concrete, at a position separated from a construction target surface. The present invention relates to a spacer, a method of using the spacer, and a method of attaching the spacer to lay a lattice-like body.

When pouring concrete to construct a structure such as the floor of a building, multiple welded wire meshes are placed inside the concrete to increase the strength of the structure and to prevent cracks from occurring in the structure. It is buried.

FIG. 23 is an explanatory diagram illustrating a conventional welded wire mesh construction method, and in the figure, WM is a welded wire mesh. The welded wire mesh WM is formed by arranging a plurality of vertical strips W1, W1,... and horizontal strips W2, W2,... in a lattice shape, and the vertical strips W1, W1,... and the horizontal strips W2, W2,... The intersecting portions are fixed by welding to each other.

A formwork (not shown) is erected around the area to be constructed, and a plurality of welded wire meshes WM, WM, . . . are laid throughout the entire area within the formwork. At this time, the edges of adjacent welded wire meshes WM, WM are arranged to overlap each other by a plurality of squares (the first square in FIG. 23). Next, the welded wire meshes WM, WM, ... are lifted in order, and spacers 130, 130, ... such as block pieces or stone pieces are placed between the work surface and the welded wire meshes WM, WM, ... Welded wire meshes WM, WM, . . . are placed on the spacers 130, 130, . By supporting the welded metal meshes WM, WM, . . . on the spacers 130, 130, . . . in this manner, the welded metal meshes WM, WM, .

In order to prevent mutual misalignment from occurring in the overlapped portions of adjacent welded wire meshes WM, WM, even if stepped on by a worker working on the welded wire meshes, for example, a short piece of wire, etc. Both overlapping welded wire meshes WM, WM are bound to each other by binding members B, B, . . . made of strips. After completing the construction of the welded wire meshes WM, WM, ... in the construction target area in this way, concrete is poured into the formwork to a predetermined depth where the welded wire meshes WM, WM, ... are embedded, and the poured concrete is It smoothes the surface.

However, in the construction method described above, since the welded wire meshes WM, WM, ... are only placed on the spacers 130, 130, ..., each welding wire mesh is When a shift occurs in the wire meshes WM, WM, . . . , there is a problem in that the positions of the spacers 130, 130, . Therefore, the following spacer is disclosed in Patent Document 1, which will be described later.

FIG. 24 is a perspective view showing how the spacer disclosed in Patent Document 1 is used. The spacer 131 is formed by bending and forming a metal wire with a diameter of about 5 to 6 mm, and is formed between two rising portions 131c, 131c that are spaced apart from each other by a predetermined distance, and between both rising portions 131c, 131c. The iron wire support part 131g supports the iron wire constituting the welded wire mesh, and the mounting parts 131b, 131b are bent horizontally from the lower ends of both rising parts 131c, 131c, and are placed on the deck plate DP. There is. The iron wire support portion 131g also includes lower horizontal portions 131d, 131d extending horizontally from the upper ends of both rising portions 131c, 131c, and arc-shaped portions curved and rising from both lower horizontal portions 131d, 131d, respectively. It has portions 131e, 131e and a horizontal upper horizontal portion 131f connecting the upper ends of both arcuate portions 131e, 131e, and has a flat spiral shape when viewed from the side. Here, the inner dimension between the lower horizontal portions 131d, 131d and the upper horizontal portion 131f is larger than the outer diameter of the iron wire constituting the welded wire mesh.

In such a spacer 131, the welded wire mesh WM laid on the deck plate DP is lifted, the iron wire constituting the welded wire mesh WM is inserted into the spiral iron wire support portion 131g, and in this state, the welded wire mesh WM is By lowering the wire mesh WM, the mounting portions 131b, 131b of the spacer 131 are brought into contact with the deck plate DP, and the spacer 131 is made to stand on the deck plate DP. At this time, the iron wire inserted into the iron wire support portion 131g is supported on both lower horizontal portions 131d, 131d of the spacer 131.

Japanese Patent Application Publication No. 2010-189855

However, in the spacer 131 disclosed in Patent Document 1, the work of inserting the iron wire of the welded wire mesh WM into the iron wire support portion 131g of the spacer 131 is performed by inserting each welded wire mesh WM partially overlapped with each other, as before. Since the worker has to lift the WM,..., there is a problem that not only is the worker forced to do heavy labor, but also that it takes a relatively long time to attach the spacer 131 to the iron wire of the welded wire mesh WM.

The present invention has been made in view of the above circumstances, and provides a spacer that can be installed in a short time without forcing workers to do heavy labor, a method for using the spacer, and a method for installing a grid by installing the spacer. Provides a method for laying a shaped body.

(1) The spacer according to the present invention is attached to a lattice-like body formed by joining the intersecting parts of a plurality of vertical strips and a plurality of horizontal strips arranged in a lattice shape, and In a spacer that provides a gap between the surface and the surface to be constructed, the spacer includes a wall portion having at least two side portions extending in different directions to support the grid-like body, and a spacer supported by the wall portion and having a A strip clamping part that rotatably clamps a vertical strip or a horizontal strip, and a strip clamping part that is provided on the strip clamping part and externally engages with the vertical strip or horizontal strip clamped within the strip clamping part. and an external fitting engagement part, and the strip material holding part and/or the external fitting engagement part are characterized in that they have flexibility.

The spacer of the present invention is attached to a lattice-like body formed by joining the intersections of a plurality of vertical strips and a plurality of horizontal strips arranged in a lattice pattern, and connects the lattice-like body to the lattice-like body. Provide a gap between the work surface and the surface to be constructed. Here, the spacer includes a wall portion having at least two side portions extending in different directions, whereby the wall portion can stably maintain its posture on the construction target surface, and therefore , the lattice-like body is stably supported by the walls.

Furthermore, a strip clamping part that rotatably clamps the vertical strips or horizontal strips of the lattice-like body is supported on this wall, and the strip clamping part has a strip clamping part that holds the vertical strips or the horizontal strips of the lattice-like body in a rotatable manner. An external fitting engagement portion is provided to externally engage the vertical strip or horizontal strip.

The strip clamping part and/or the external fitting part have flexibility, so that when the longitudinal strips or horizontal strips of the lattice-like body are opposed to the strip clamping part, the corresponding By applying a pushing force toward the vertical strip or the horizontal strip to the strip clamping section, the vertical or horizontal strip can be clamped by the strip clamping section with one touch, and the spacer can be attached to the lattice-like body. At this time, the externally fitting part engages externally with the vertical or horizontal material held within the strip holding part, so that the held vertical or horizontal material is pulled out from the strip holding part. It is prevented from doing so. Thereby, the spacer can be attached to the grid-like body in a short time without forcing the worker to do heavy labor.

(2) Furthermore, in the spacer according to the above-described invention , the wall portion includes a first side portion and a second side portion that are arranged rotationally symmetrically, and the strip material holding portion is arranged so that the first side portion It is characterized in that it is configured to sandwich the vertical strip material or the horizontal strip material that is placed in contact with the second side portion.

In the spacer of the invention , the above-mentioned wall portion further includes a first side portion and a second side portion, such as two hypotenuses of a triangle and two hypotenuses of a trapezoid, which are arranged rotationally symmetrically. The vertical strip members or the horizontal strip members of the lattice-like body are arranged in contact with each other so as to pass over these first and second side portions, and the strip clamping portion It is configured to sandwich the vertical strip members or horizontal strip members arranged in contact with each other on the first side portion and the second side portion.

As a result, the strip clamping part not only rotatably clamps the vertical or horizontal strips of the lattice-like body, but also because the center of gravity of the spacer is located closer to the bottom of the wall than the strip clamping part. The spacer attached to the lattice-like body rotates around the central axis of the vertical or horizontal strip material held by the strip holding portions so that the bottom of the wall portion is positioned in the vertical direction. Therefore, when the grid-like body is placed parallel to the surface to be constructed, the bottom of the wall of the spacer attached to it is located in the vertical direction, so the grid-like body can be directly placed on the surface to be constructed. By installing the spacer, the spacer is installed on the construction target surface with its wall section erected on the construction target surface, and the lattice-like body is supported by the spacer's wall section. Thereby, the labor of the worker can be further reduced.

(3) In the spacer according to the present invention, the strip clamping part includes a first clamping part disposed on the rotationally symmetrical center side and a second clamping part disposed on the opposite side. The first clamping part is installed between the first side part and the second side part, and the second clamping part is provided on the first side part and the second side part, respectively, facing the first clamping part. It is characterized by being placed.

In the spacer of the present invention, the strip clamping section described above includes a first clamping section disposed on the rotationally symmetrical center side and a second clamping section disposed on the opposite side. , a grid-like vertical strip or horizontal strip is inserted between the first clamping section and the second clamping section, and the vertical strip or horizontal strip is clamped by the first clamping section and the second clamping section. do. As a result, the strip clamping section can rotatably clamp the vertical strip or the horizontal strip with a relatively simple configuration.

Here, the first clamping part is constructed between the first side part and the second side part, thereby making it possible to further simplify the structure of the strip clamping part, while increasing the structural strength of the wall part. can be increased.

On the other hand, the second clamping part is disposed on the first side part and the second side part so as to face the first clamping part, respectively, and the vertical strip material or the horizontal strip material is fitted into the strip clamping part. In order to sandwich the vertical strip or horizontal strip at two different locations in the longitudinal direction of the material, this spacer has a fixed width around the central axis of the vertical strip or horizontal strip inserted into the strip clamping part. Can be rotated in position.

(4) The spacer according to the present invention is provided on the first side portion and the second side portion from the ceiling to an appropriate position on the bottom side thereof, and is arranged at a distance from each other in the longitudinal direction of the ceiling. Two groove-like recesses are formed, and the second holding part includes a support section formed between both groove-like recesses.

In the spacer of the present invention, the above-mentioned first side part and second side part are provided at appropriate positions from the ceiling to the bottom side, and are spaced apart from each other in the longitudinal direction of the ceiling. Two groove-like recesses are formed. The second holding part includes a support part formed between both groove-shaped recesses. Such a support part has flexibility, and when the vertical or horizontal strip members of the lattice-like body are inserted into the strip clamping part, the support part of the second clamping part flexes, so that the insertion is difficult. Work can be done smoothly. Therefore, the labor of the worker can be further reduced, and the spacer can be attached to the grid-like body in a shorter time.

(5) The spacer according to the present invention is characterized in that the second holding portion is configured to stand up on the ceilings of the first side portion and the second side portion.

In the spacer of the present invention, the above-mentioned second holding part is configured to stand up on the ceiling of the first side part and the second side part, respectively, and is configured to stand on the ceiling of both the first side part and the second side part. A corresponding second holding part can be formed integrally.

(6) In the spacer according to the present invention, a bottom portion is extended at the bottom of the first side portion and the second side portion so as to close a gap between the first side portion and the second side portion. The wall part has a first side part and a second side part formed in a dogleg shape, and the part of the wall part on the tip side from the first clamping part is connected to the first side part of another spacer, It is characterized in that it is configured so that it can be fitted into a portion surrounded by the second side portion, the first clamping portion, and the bottom portion and connected to each other.

In the spacer of the present invention, the bottom portion is extended at the bottom of the first side portion and the second side portion so as to close the gap between the first side portion and the second side portion. be. On the other hand, the wall part has a first side part and a second side part formed in a dogleg shape. It is configured so that it can be inserted into a portion surrounded by the two side parts, the first clamping part, and the bottom part, and can be connected to each other. Such a configuration can be implemented by adjusting the height dimension in the longitudinal direction of the first side part and the second side part according to the thickness dimension of the bottom part.

By interconnecting a plurality of spacers in this manner, it becomes possible to overlap a plurality of lattice bodies and attach a plurality of spacers to each of the superimposed lattice bodies at once. Thereby, the labor of the worker can be further reduced, and a plurality of spacers can be attached to a plurality of lattice bodies in a shorter time.

On the other hand, as described above, the part of the wall part on the tip side of the first clamping part is fitted into the part surrounded by the first side part, the second side part, the first clamping part, and the bottom part of the other spacer, so that they are mutually connected. Since the spacers are configured so that they can be connected to each other, each connected spacer can be uncoupled by moving in one direction opposite to the connecting direction. , they can be easily transported without being separated from each other.

(7) In the spacer according to the present invention, when the wall portion and the strip clamping portion are connected to each other, the central axes of the vertical strips or horizontal strips sandwiched by the respective strip clamping portions are flush with each other. It is characterized by being configured so that.

In the spacer of the present invention, when the above-mentioned wall portion and the strip clamping portion are connected to each other, the center axes of the vertical strips or horizontal strips sandwiched by the respective strip clamping portions are flush with each other. Therefore, among the mutually connected spacers, the strip holding part of any spacer can be connected to the longitudinal strip of any one of the superimposed lattice bodies or By facing the horizontal strips, the strip holding portions of each other spacer can also be made to face the vertical strips or horizontal strips of the corresponding lattice-like body, and thereby, a plurality of spacers can be attached to the plurality of lattice-like bodies The work of attaching the spacer can be carried out more easily.

(8) In the spacer according to the present invention, when the strip clamping portions are connected to each other, the center axis of the vertical strip or horizontal strip that is clamped by each strip clamping portion is the vertical strip or the horizontal strip. It is characterized in that the dimensions are different depending on the outer diameter of the horizontal strip material.

In the spacer of the present invention, when the strip clamping parts are connected to each other, the center axis of the vertical or horizontal strip clamped by each strip clamping part is aligned with the longitudinal or horizontal strip clamping parts. The dimensions are different depending on the outer diameter of the strip.

Here, when a plurality of grid-like bodies are superimposed, for example, the front and back sides of the plurality of grid-like bodies are superimposed alternately, but at this time, each vertical strip or each horizontal strip of each grid-like body is By making every other row flush, the height dimension of the plurality of superimposed lattice bodies can be made as small as possible. For example, when placing the back grid on the front grid, the positions of the horizontal strips of the front grid on the mounting surface and the position of the back grid on the mounting surface. The horizontal strips are placed in the same position, and each vertical strip on the front grid is flush with each vertical strip on the back grid. Also, when superimposing the front grid on the back grid, check the position of each vertical strip of the back grid on the mounting surface and the position of the front grid on the mounting surface. The vertical strips are arranged so that their positions match, and each horizontal strip on the back grid and each horizontal strip on the front grid are flush with each other.

In the spacer according to the present invention, when a plurality of spacers are connected to each other, the strip clamping portion of each spacer has a central axis of the vertical strip or horizontal strip sandwiched between the strip clamping portions. Since the vertical strips or horizontal strips are configured to have different dimensions depending on the outer diameter, among the plurality of superimposed lattice bodies as described above, every other row of vertical strips is made flush with each other. Alternatively, they can be fitted and held in the strip holding portions of each spacer in correspondence with the horizontal strips.

(9) In the spacer according to the present invention, the strip clamping part includes a first clamping part disposed on the rotationally symmetrical center side and a second clamping part disposed on the opposite side. The device is characterized in that a pair of first and second clamping portions are provided on the first side portion and the second side portion, respectively.

In the spacer of the present invention, the strip clamping section described above includes a first clamping section disposed on the rotationally symmetrical center side and a second clamping section disposed on the opposite side. A pair of first and second clamping parts are provided on the first side and the second side, respectively, so that the wall can be constructed of a relatively thin material.

(10) In the spacer according to the present invention, the first side portion and the second side portion are formed of a plate material, and the paired first and second holding portions are arranged so that the corresponding first side portion and the second side portion are formed of a plate material. It is characterized by being formed by cutting two side parts.

In the spacer of the present invention, the first side portion and the second side portion constituting the above-mentioned wall portion are formed of a plate material, and the paired first and second gripping portions are arranged so that the corresponding first side portion and the second side portion constitute the wall portion. It is formed by cutting the first side and the second side. Thereby, the manufacturing cost of the spacer can be made as low as possible.

(11) The spacer according to the present invention is provided on the first side portion and the second side portion from the ceiling to an appropriate position on the bottom side thereof, and is arranged at a distance from each other in the longitudinal direction of the ceiling. Two groove-like recesses are formed, and the second holding part includes a support section formed between both groove-like recesses.

In the spacer of the present invention, the first side portion and the second side portion constituting the wall portion are provided at appropriate positions from the ceiling to the bottom side, and spaced apart from each other in the longitudinal direction of the ceiling. Two groove-like recesses are formed, and the second holding part includes a support section formed between both groove-like recesses. Such a support part has flexibility, and when the vertical or horizontal strip members of the lattice-like body are inserted into the strip clamping part, the support part of the second clamping part flexes, so that the insertion is difficult. Work can be done smoothly. Therefore, the labor of the worker can be further reduced, and the spacer can be attached to the grid-like body in a shorter time.

(12) In the spacer according to the present invention, on the outer surfaces of the first side portion and the second side portion, extending portions extending to the outside of the wall portion are provided along the longitudinal sides of the first side portion and the second side portion. At least two protrusions are provided at appropriate positions in the longitudinal direction of both extensions so as to be flush with the extension, and the first side and the second side part is provided with a fitting part into which each of the protrusions provided on the other spacer is fitted, and each of the protrusions provided on the other spacer is provided in the fitting part of the first side part and the second side part. It is characterized by being configured so that the parts can be inserted and connected to each other.

In the spacer of the present invention, on the outer surfaces of the first side portion and the second side portion constituting the wall portion, extending portions extending to the outside of the wall portion are provided on the first side portion and the second side portion, respectively. At least two protrusions are provided at appropriate positions in the longitudinal direction of both extensions so as to be flush with the extension. Further, the first side portion and the second side portion are provided with a plurality of fitting portions into which the respective protrusions provided on the other spacers are respectively fitted, and each of the fitting portions on the first side portion and the second side portion Each protrusion provided on another spacer is fitted into each spacer so that they can be connected to each other.

By interconnecting a plurality of spacers in this manner, it becomes possible to overlap a plurality of lattice bodies and attach a plurality of spacers to each of the superimposed lattice bodies at once. Thereby, the labor of the worker can be further reduced, and a plurality of spacers can be attached to a plurality of lattice bodies in a shorter time.

On the other hand, as described above, at least two protrusions provided on both extending portions of one spacer are fitted into corresponding fitting portions of the other spacer to connect both spacers to each other. Therefore, both connected spacers can be uncoupled by moving in one direction opposite to the connecting direction, but this prevents multiple connected spacers from being separated from each other. , can be easily transported.

(13) In the spacer according to the present invention, a bottom portion is extended at the bottom of the first side portion and the second side portion so as to close a gap between the first side portion and the second side portion. The extension part and the protrusion part are provided flush with the bottom part.

In the spacer of the present invention, the bottom portion extends at the bottom of the first side portion and the second side portion constituting the wall portion so as to close the gap between the first side portion and the second side portion. Since the lattice-shaped body is provided with the spacer, its posture can be stably maintained on the surface to be constructed, and therefore, the lattice-like body is stably supported by the spacer.

Further, since the above-mentioned extending portion and protruding portion are provided flush with the bottom portion, the extending portion and the protruding portion can be formed integrally with the bottom portion.

(14) In the spacer according to the present invention, when the wall portion and the strip clamping portion are connected to each other, the central axes of the vertical strips or horizontal strips sandwiched by the respective strip clamping portions are flush with each other. It is characterized by being configured so that.

In the spacer of the present invention, when the above-mentioned wall portion and the strip clamping portion are connected to each other, the center axes of the vertical strips or horizontal strips sandwiched by the respective strip clamping portions are flush with each other. Therefore, among the mutually connected spacers, the strip holding part of any spacer can be connected to the longitudinal strip of any one of the superimposed lattice bodies or By facing the horizontal strips, the strip holding portions of each other spacer can also be made to face the vertical strips or horizontal strips of the corresponding lattice-like body, and thereby, a plurality of spacers can be attached to the plurality of lattice-like bodies The work of attaching the spacer can be carried out more easily.

(15) In the spacer according to the present invention, when the strip holding portions are connected to each other, the center axis of the vertical strip or the horizontal strip that is held by each strip holding portion is Alternatively, it is characterized in that the dimensions are different depending on the outer diameter of the horizontal strip material.

In the spacer of the present invention, when the above-mentioned strip clamping parts are connected to each other, the center axis of the vertical strip or horizontal strip clamped by each strip clamping part is the same as that of the longitudinal strip. Alternatively, the dimensions are different depending on the outer diameter of the horizontal strip material.

In the spacer according to the present invention, when a plurality of spacers are connected to each other, the strip clamping portion of each spacer has a central axis of the vertical strip or horizontal strip sandwiched between the strip clamping portions. Since the vertical strips or horizontal strips are configured to have different dimensions depending on the outer diameter, among the plurality of superimposed lattice bodies as described above, every other row of vertical strips is made flush with each other. Alternatively, they can be fitted and held in the strip holding portions of each spacer in correspondence with the horizontal strips.

(16) The spacer according to the present invention is characterized in that the externally fitting portion is provided on the second holding portion or the first holding portion.

In the spacer of the present invention, since the above-mentioned external fitting part is provided on the second clamping part or the first clamping part, it is rotatably clamped between the first clamping part and the second clamping part. The vertical strip material or the horizontal strip material that has been removed is prevented from being pulled out from the first clamping part and the second clamping part.

(17) In the spacer according to the present invention, the external fitting portion, and the first holding portion or the second holding portion in which the external fitting portion is not provided, each have a vertical strip material or a horizontal strip material to be sandwiched. It is characterized by being provided with a guide part that guides the material into the inside of the strip holding part.

In the spacer of the present invention, the above-mentioned external fitting portion, and the first clamping portion or the second clamping portion where the external fitting portion is not provided are each provided with a vertical strip material or a horizontal strip material to be clamped. Since the guide part is provided to guide the strip material into the strip clamping part, it is possible to more smoothly insert the vertical or horizontal strips of the lattice-like body into the strip clamping part. Such a guide part can be configured, for example, by tapering the ceiling of the external fitting part and the first holding part or the second holding part in which the external fitting part is not provided.

(18) A method of using a spacer according to the present invention includes interconnecting a plurality of spacers according to any one of (6) to (8) or (12) to (15), and forming a plurality of superimposed lattices. The strip clamping portions of the connected spacers are arranged opposite to each other in the longitudinal or horizontal strips of the shaped body, and each spacer is directed toward the vertical strip or horizontal strip opposite to its strip clamping portion. The present invention is characterized in that by applying a force, the strip material clamping portions of each spacer are made to sandwich the opposing vertical or horizontal strip materials, thereby attaching each spacer to the corresponding grid-like body.

In the method of using the spacer of the present invention, a plurality of spacers according to any one of (6) to (8) or (12) to (15) described above are connected to each other, and a plurality of superimposed The strip clamping portions of the connected spacers are arranged opposite to the vertical strips or horizontal strips of the lattice-like body, and each spacer is connected to the vertical strip or horizontal strip material facing the strip clamping portion. By applying a force directed toward the spacer, the opposing vertical or horizontal strips are held between the strip clamping portions of each spacer, and each spacer is attached to the corresponding lattice body. This makes it possible to overlap multiple lattice bodies and attach multiple spacers to each superimposed lattice body at the same time, which further reduces the labor of the worker and allows multiple spacers to be attached in a shorter time. Spacers can be attached to multiple grids.

(19) A method for laying a lattice-like body according to the present invention includes interconnecting a plurality of spacers according to any one of (6) to (8) or (12) to (15), and forming a plurality of superimposed spacers. The strip clamping parts of each connected spacer are arranged opposite to the vertical strips or horizontal strips of the lattice-like body, and each spacer has a vertical strip or horizontal strip material facing the strip clamping part. By applying a force directed toward the spacer, the opposing vertical or horizontal strips are held between the strip clamping portions of each spacer, and each spacer is attached to the corresponding lattice body, and then each of the superimposed By pulling up the uppermost grid of the grids above the other grids, the spacers attached to the grid are separated from the other connected spacers, and the lifted grid It is characterized by repeating the operation of transporting the body to an appropriate position on the surface to be constructed and installing it at that position.

In the method for laying a lattice-like body of the present invention, a plurality of spacers according to any one of (6) to (8) or (12) to (15) described above are interconnected, and the spacers are superimposed. The strip holding portions of each connected spacer are arranged opposite to the vertical strips or horizontal strips of a plurality of lattice-like bodies, and each spacer is provided with a vertical strip or horizontal strip that faces the strip sandwiching portion. By applying a force toward the material, the strip material clamping portions of each spacer are made to sandwich the opposing longitudinal or horizontal material, and each spacer is attached to the corresponding grid-like body. As before, it is possible to overlap multiple lattice bodies and attach multiple spacers to each superimposed lattice body at the same time, which further reduces the labor of the worker and allows multiple spacers to be attached in a shorter time. Spacers can be attached to multiple grids.

In the present invention, after that, among the superimposed grid bodies, the uppermost grid body is pulled up above the other grid bodies to connect the spacers attached to the grid bodies. separated from other spacers. When the uppermost lattice-shaped body is pulled up in this way and the spacer attached to the lattice-shaped body is separated from the plurality of interconnected spacers, the spacer strip clamping portion of the spacer is pulled up by its own weight. The vertical or horizontal strips that are fitted and clamped are rotated about the central axis so that the bottom side of the wall portion is below the grid-like body and held in that position. Therefore, when the lifted grid-like body is transported to an appropriate position on the construction target surface and installed at that position, the spacer attached to the grid-like body is installed in a predetermined posture on the construction target surface, and this spacer The grid-like body is supported at a position separated from the installation target surface.

In this way, among the superimposed lattice bodies, the uppermost lattice body is pulled up above the other lattice bodies, and the lifted lattice body is conveyed to an appropriate position on the surface to be constructed. By repeating the installation operation at that position, it is possible to lay down the lattice-like body supported by the spacer at an appropriate position on the installation target surface. Therefore, when laying a plurality of lattice-like bodies, the laying effort by the worker can be reduced as much as possible, and more lattice-like bodies can be laid in a short time.

FIG. 1 is a perspective view showing an example of a spacer according to the present invention. FIG. 2 is a front view of the spacer shown in FIG. 1; FIG. 2 is a rear view of the spacer shown in FIG. 1; FIG. 2 is a side view of the spacer shown in FIG. 1; FIG. 2 is a plan view of the spacer shown in FIG. 1; FIG. 2 is an explanatory diagram illustrating a manner in which a strip is inserted into the strip holding portion of the spacer shown in FIG. 1. FIG. FIG. 2 is a perspective view showing a state in which a plurality of spacers shown in FIG. 1 are connected in tandem. 8 is a perspective view showing a state in which spacers connected to each other as shown in FIG. 7 are attached to a plurality of welded wire meshes overlapped with each other; FIG. FIG. 9 is a partial perspective view of FIG. 8; It is an explanatory view explaining the procedure of superimposing a plurality of welded wire meshes, and the procedure of attaching each spacer mutually connected to the plurality of overlapped welded wire meshes. It is an explanatory view explaining a mode where welded wire mesh is carried out from each welded wire mesh in an overlapping state. FIG. 3 is an explanatory diagram illustrating a manner in which the welded wire mesh that has been carried out is laid at a laying location. FIG. 7 is a perspective view showing a spacer according to a second embodiment of the invention. FIG. 7 is a perspective view showing a spacer according to a third embodiment of the invention. 15 is a front view of the spacer shown in FIG. 14. FIG. 15 is a rear view of the spacer shown in FIG. 14. FIG. 15 is a side view of the spacer shown in FIG. 14. FIG. 15 is a plan view of the spacer shown in FIG. 14. FIG. FIG. 15 is an explanatory diagram illustrating a manner in which a strip is inserted into the strip holding portion of the spacer shown in FIG. 14; FIG. 15 is a perspective view showing a state in which a plurality of spacers shown in FIG. 14 are connected in tandem. 21 is a perspective view showing a state in which spacers connected to each other as shown in FIG. 20 are attached to a plurality of welded wire meshes overlapped with each other; FIG. FIG. 22 is a partial perspective view of FIG. 21; It is an explanatory view explaining the construction method of the conventional welded wire mesh. FIG. 2 is a perspective view showing how the spacer disclosed in Patent Document 1 is used.

The spacer according to the present invention will be explained in detail based on the drawings.
Note that the spacer described in the detailed description of the present invention is an example for explaining the gist of the present invention, and it goes without saying that the present invention includes modifications and modifications without departing from the gist.

(First form for carrying out the invention)
FIG. 1 is a perspective view showing an example of a spacer according to the present invention, and FIGS. 2 to 5 are a front view, a rear view, a side view, and a plan view of the spacer 1 shown in FIG. 1. The spacer 1 has a dogleg-shaped wall portion 10 having an appropriate thickness on two side edges of a triangular plate-shaped bottom portion 20, extending approximately the entire length of both sides. One side is a first side portion 11, and the other side is a second side portion 12. Note that the outer dimension of the bottom portion 20 is smaller than the inner diameter of a cell constituting a welded wire mesh (lattice-like body) to be described later.

The first side portion 11 and the second side portion 12 have a trapezoidal shape in side view, with the height dimension from the bottom portion 20 gradually decreasing from both ends of the wall portion 10 toward the top. On the ceiling of the second side part 12, at a position slightly closer to the end of the wall part 10 than the center in the longitudinal direction, there is a first column-shaped clamping part for clamping a strip forming a welded wire mesh, which will be described later. 31 is installed between the first side part 11 and the second side part 12. Further, second clamping parts 32 and 32 are erected on the ceilings of the first side part 11 and the second side part 12 at positions slightly closer to both ends of the wall part 10 than the first clamping part 31, respectively. There is. The dimension between the second clamping part 32 and the first clamping part 31 is determined according to the diameter of the strip. A strip material clamping section 30 is configured to rotatably clamp the material.

The height of the ceiling of the first holding part 31 described above decreases as the distance from the top of the wall part 10 increases. is configured.

On the other hand, the second holding part 32 includes a columnar support part 34 erected on the ceiling of the first side part 11 or the second side part 12, and the end of the support part 34 has a beak shape. It is formed into an externally-fitting engagement portion 35 that externally engages with the strip. The ceiling of this external fitting engagement part 35 is made lower in height toward the top of the wall part 10, so that the second guide part 42 that guides the strip into the strip holding part 30 is It is configured. The external fitting engagement part 35 is configured to intersect with an axis passing through the center of the strip clamping part 30, that is, the central axis of the strip clamped by the strip clamping part 30. The dimension from the tip of 35 to the first clamping part 31 is shorter than the dimension from the support part 34 to the first clamping part 31. Further, at least the beak-shaped tip portion of the external fitting engagement portion 35 is formed of a flexible material, and from the tip of the external fitting engagement portion 35 to the corresponding first side portion 11 or the second side portion. The height to the ceiling of No. 12 is approximately the same as the diameter of the strip. Note that not only the beak-shaped tip portion of the externally fitting portion 35 but also the externally fitting portion 35 and the support portion 34 may be formed of a flexible material.

When inserting a strip into the strip clamping section 30 as described later, by applying pressure to the vertical strip W1 or the horizontal strip W2 positioned on the strip clamping section 30, the outer fitting engagement section is inserted. 35 is bent in a direction away from the first clamping part 31, and in this state, the vertical strip material W1 or the horizontal strip material W2 is inserted into the strip clamping part 30. When the vertical strip material W1 or the horizontal strip material W2 is inserted into the strip material clamping section 30, the bent tip of the external fitting portion 35 returns to its original position, as shown in FIG. At this time, the tip of the external fitting portion 35 is externally engaged with the vertical strip material W1 or the horizontal strip material W2 inserted into the strip material holding portion 30, so that the vertical strip material W1 or the horizontal strip material W2 is The strip material is prevented from being pulled out from the strip clamping section 30.

Note that this spacer 1 can be integrally molded using a resin material.

By the way, in the spacer 1 according to the present invention, a plurality of spacers 1, 1, . . . can be interconnected.

FIG. 7 is a perspective view showing a state in which a plurality of spacers 1 shown in FIG. 1 are connected in tandem, and FIG. 8 is a perspective view showing a state in which a plurality of spacers 1 shown in FIG. FIG. 3 is a perspective view showing a state in which the spacers 1, 1, . . . are attached. Moreover, FIG. 9 is a partial perspective view of FIG. 8, and FIG. 10 shows a procedure for overlapping a plurality of welded wire meshes, and attaching each spacer 1, 1, . It is an explanatory diagram explaining a procedure. In each of these figures, the same numbers are given to the parts corresponding to those shown in FIGS. 1 to 5, and the explanation thereof will be omitted.

As shown in FIG. 7, the wall 10 of the next spacer 1 is placed within the wall 10 of the leading spacer 1 so that the outer surface of the wall 10 is in contact with the inner surface of the wall 10 of the leading spacer 1. The bottom part 20 of the next spacer 1 is placed on the bottom part 20 of the first spacer 1. At this time, the height dimensions from the corresponding bottom portions 20, 20 of the first side portions 11, 11 and the second side portions 12, 12 of the wall portions 10, 10 constituting both spacers 1, 1 are as described above. Since the wall portion 10 is gradually lowered from both ends toward the top, the tip portion of the wall portion 10 of the next spacer 1 is placed between the first clamping portion 31 and the bottom portion 20 of the leading spacer 1. The spacer 1 is inserted until the tip of the wall 10 of the spacer 1 contacts the wall 10 of the leading spacer 1.

The tip of the next spacer 1 is closely surrounded by the first side 11, second side 12, bottom 20, and first clamping part 31 of the leading spacer 1, and in addition, as described above, Since the tip of the wall 10 of the next spacer 1 is in contact with the wall 10 of the leading spacer 1, when separating the next spacer 1 from the leading spacer 1, the next spacer 1 is separated from the leading spacer 1. It is designed so that it can be moved only in one direction, which is the opposite direction to the direction in which it is connected.

On the other hand, the first clamping parts 31, 31, . . . of each spacer 1, 1, . The ridgelines of the first clamping parts 31, 31, ... of the other connected spacers 1, 1, ... are also flush with one plane formed by the ridgelines of the first clamping parts 31, 31 of the spacers 1, 1. It's like this. That is, in one plane formed by the central axis of the strip clamping parts 30, 30 of a pair of connected spacers 1, 1, the strip clamping parts 30, 30 of the other connected spacers 1, 1, . The central axes of ... are also arranged to be flush with each other.

Furthermore, the arrangement position of the strip clamping parts 30 on the wall 10 of the spacer 1 is such that when a plurality of spacers 1, 1,... are connected, the distance between the adjacent strip clamping parts 30, 30 is , is approximately the same size as the inner diameter of the strip clamping part 30, that is, the outer diameter of the strip clamped within the strip clamping part 30.

On the other hand, as shown in FIG. 8 or FIG. 10, the welded wire mesh WM includes a plurality of vertical strips W1, W1,... arranged at predetermined intervals in one surface, and a predetermined strip in the other surface parallel to the one surface. A plurality of horizontal strips W2, W2, ... arranged at intervals are arranged in a grid pattern, and the intersections of the vertical strips W1, W1, ... and the horizontal strips W2, W2, ... are mutually arranged. It is fixed by welding. A square M is formed by adjacent vertical strips W1, W1 and adjacent horizontal strips W2, W2. Here, for example, if the welded wire mesh WM with the vertical strips W1, W1, . . . facing upward is the front, the welded wire mesh WM with the vertical strips W1, W1, . Note that front and back may be determined by the orientation of the vertical strips W1, W1, . . . or may be determined by the orientation of the horizontal strips W2, W2, . Therefore, the welded wire mesh WM with the vertical strips W1, W1, .

When a plurality of welded wire meshes WM, WM, ... are transported by a transport means such as a truck, the welded wire meshes WM, WM, ... are stacked in multiple stages on the loading platform of the transport means so that the front and back sides alternate. 8 and FIGS. 10(a) to (c), when placing the back welded wire mesh WM on the front welded wire mesh WM, the horizontal strips of the front welded wire mesh WM on the mounting surface. The positions of W2, W2, ... match the positions of the horizontal strips W2, W2, ... of the back welded wire mesh WM on the mounting surface, and the vertical strips W1, W1, ... of the front welded wire mesh WM match. and the vertical strips W1, W1, ... of the back welded wire mesh WM are placed so that they are flush with each other.

In addition, when superimposing the front welded wire mesh WM on the back welded wire mesh WM, the positions of the vertical strips W1, W1, ... of the back welded wire mesh WM on the mounting surface and the front welded wire mesh WM on the mounting surface are determined. The positions of the vertical strips W1, W1,... of the welded wire mesh WM match, and the horizontal strips W2, W2,... of the back welded wire mesh WM match the horizontal strips W2, W2,... of the front welded wire mesh WM. Arrange so that they are flush with each other.

Then, by repeating this operation, a plurality of welded wire meshes WM, WM, ... are overlapped alternately on the front and back sides, but by this, the vertical strips W1, W1, ..., W1, W1, ... of each welded wire mesh WM, WM, ... , ..., ..., ... are flush with every other row in the superimposing direction, and the horizontal strip members W2, W2, ..., W2, W2, ..., ..., ... of each welded wire mesh WM, WM, ... , . . . are flush with the longitudinal members W1, W1, . . . , W1, W1, . . . , .

In this way, on any one side of each of the welded wire meshes WM, WM, ... in the superimposed state, the vertical strips W1, which constitute each of the welded wire meshes WM, WM, ... W1, . . . or horizontal strip members W2, W2, . . . are positioned every other row. On the other hand, when a plurality of spacers 1, 1, ... are connected to each other as described above, the adjacent strip material clamping parts 30, 30 are connected to the vertical strip materials W1, W1,... or the horizontal strip materials W2, W2,... Since it is configured to be spaced apart by approximately the same dimension as the outer diameter, the leading strip material holding portion 30 of each connected spacer 1, 1, ... is separated from the vertical strip material W1 of the welded wire mesh WM located at a lower stage or By facing the horizontal strip material W2, as shown in FIGS. 10(a) and 10(b), the strip material holding parts 30, 30, ... of the other spacers 1, 1, ... are welded in the upper stages. The wire meshes WM, WM, . . . can be opposed to the vertical strips W1, W1, . . . or the horizontal strips W2, W2, . . . , respectively.

As shown in FIGS. 8 to 10, on one side of each welded wire mesh WM, WM, ... superimposed as described above, each welded wire mesh WM, WM, ... is placed in one plane parallel to the superimposed direction. The constituent horizontal strip members W2, W2,... are located every other row. As described above, the leading strip holding part 30 of each of the connected spacers 1, 1, . By doing so, the strip holding parts 30, 30, ... of the other spacers 1, 1, ... are made to respectively face the horizontal strips W2, W2, ... of the welded wire meshes WM, WM, ... in the upper stages. , In this state, by applying pressure toward the opposing horizontal strips W2, W2,... to each spacer 1, 1,..., the strip material clamping parts 30, 30,... of the spacers 1, 1,... , the horizontal strip members W2, W2, .

As a result, a plurality of spacers 1, 1, ... can be attached to a plurality of welded wire meshes WM, WM, ... at once, and therefore, a plurality of spacers 1, 1, ... can be attached to a plurality of welded wire meshes WM, WM, ... without forcing workers to do heavy labor. The time required to attach the spacers 1, 1, . . . can be shortened as much as possible.

On the other hand, on the other side that intersects with one side of each welded wire mesh WM, WM, ... in the superimposed state, the vertical strips W1, which make up each welded wire mesh WM, WM, ..., in one plane parallel to the superimposed direction, W1,... are located every other step so as to be twisted with the horizontal strips W2, W2,... to which the spacers 1, 1,... are attached, and each of the longitudinal strips W1, W1,... A plurality of spacers 1, 1, . . . connected to each other are attached in the same manner as before. As a result, a plurality of spacers 1, 1, . . . can be attached to a plurality of welded wire meshes WM, WM, .

Furthermore, if necessary, spacers 1, 1, ... are placed in front of the vertical strips W1, W1, ... or the horizontal strips W2, W2, ... of the overlapping welded wire meshes WM, WM, ... at appropriate locations. Install in the same way. Note that a plurality of spacers 1, 1, . . . are attached to one welded wire mesh WM at different positions.

Here, the inner diameter of the strip holding part 30 of the spacer 1 is set to a value slightly larger than the outer diameter of the vertical strips W1, W1, ... and the horizontal strips W2, W2, ... of the welded wire mesh WM. The strip holding part 30 is designed to loosely fit around the outer periphery of the vertical strip W1 or the horizontal strip W2, but the welded wire mesh is made up of longitudinal strips and horizontal strips with an outer diameter slightly larger than the design value. The strip material holding portion 30 of the spacer 1 can also be fitted onto the outside. In this case, when the strip holding part 30 of the first spacer 1 among the interconnected spacers 1, 1, ... is made to face the vertical strip or horizontal strip of the welded wire mesh located at the lower stage, the other The strip holding parts 30, 30, ... of the spacers 1, 1, ... do not face the vertical strips W1, W1, ... or the horizontal strips W2, W2, ... of the welded wire mesh WM, WM, ... in the upper stage. Therefore, while performing operations to expand the gaps between other adjacent spacers 1, 1, 1, 1, . . . , the strip material clamping portions 30, 30, . The vertical strips W1, W1, ... or the horizontal strips W2, W2, ... of the welded wire meshes WM, WM, ... are fitted onto the outside.

Next, a description will be given of the operation of separately carrying out the welded wire meshes WM, WM, . . . to which the spacers 1, 1, .

FIG. 11 is an explanatory diagram illustrating a manner in which the welded wire mesh WM is carried out from each welded wire mesh in a superimposed state, and FIG. 12 is an explanatory diagram illustrating a manner in which the welded wire mesh WM that has been carried out is laid at the installation location. It is an explanatory diagram. In both figures, the same numbers are given to parts corresponding to the parts shown in FIGS. 8 to 10, respectively.

As shown in FIG. 8, each of the welded wire meshes WM, WM, ... in an overlapping state has a plurality of spacers 1, 1, ... (in the welded wire mesh WM of FIG. 8, all but one spacer 1 are omitted). As shown in FIG. 11(a), the worker lifts the uppermost welded wire mesh WM almost directly above the other superimposed welded wire meshes, and removes the multiple interconnected welded wire meshes. The spacer 1 attached to the welded wire mesh WM is separated from the spacer.

At this time, as described above, each of the spacers connected to each other can be moved only in one direction opposite to the direction in which the spacers were connected, while the spacers connected to each other as shown in FIG. Each spacer 1, 1, ... is attached to each welded wire mesh WM, WM, ... with its top facing downward and in a substantially vertical posture, so that the top welded wire mesh WM is attached to the other welded wire mesh. By lifting the wire meshes WM, WM, ... substantially directly above, the spacers attached to the welded wire mesh WM are separated from the plurality of interconnected spacers 1, 1, ... as shown in FIG. 11(a). 1 can be separated.

On the other hand, when the uppermost welded wire mesh WM is lifted in this way and the spacer 1 attached to the welded wire mesh WM is separated from the plurality of interconnected spacers 1, 1,... As shown in b), due to its own weight, the spacer 1 moves its bottom 20 around the central axis of the horizontal strip W2 (or vertical strip W1) which is externally clamped by the strip clamping portion 30 of the spacer 1. It rotates so that it is below WM and is held in that position.

Next, as shown in FIG. 12, the worker transports the welded wire mesh WM to a predetermined position on the construction target surface G, and lowers and installs the welded wire mesh WM there. At this time, since the spacers 1, 1, ... attached to the welded wire mesh WM are held in a posture rotated downward from the welded wire mesh WM, each spacer 1, 1, ... attached to the welded wire mesh WM is ,... are in contact with the work surface G, and the welded wire mesh WM is supported at a position separated from the work surface G by the spacers 1, 1, ... interposed between the weld wire mesh WM and the work surface G. be done.

The worker repeats this operation for each of the welded wire meshes WM, WM, ... in the superimposed state, starting from the topmost welded wire mesh WM, so that all the welded wire meshes WM, WM, ... be laid in a predetermined area.

In this way, the laying work by the worker involves sequentially carrying out the welded wire meshes WM, WM, ... which are in a superimposed state, starting from the topmost welded wire mesh WM, transporting them to a predetermined position at the installation site, and lowering and installing them there. Since there is no need to lift the welded wire meshes WM, WM, etc., unlike when attaching spacers after installation, the labor required for laying the welded wire meshes WM, WM, ... is reduced as much as possible. can do.

(Second form for carrying out the invention)
FIG. 13 is a perspective view showing a spacer 1a according to a second embodiment of the invention, in which the configuration of the second holding part has been changed. In the figure, parts corresponding to those shown in FIGS. 1 to 5 are designated by the same numbers, and their explanations will be omitted.

As shown in FIG. 13, the first side part 11 and the second side part 12 are each provided with a pair of groove-shaped recesses 52a, 52a, 52a, 52a extending from the ceiling to the bottom part 20. Column-shaped support portions 34a, 34a are formed between the recessed portions 52a, 52a, 52a, 52a. Note that the width dimensions of these groove-like recesses 52a, 52a, 52a, 52a are smaller than the inner diameter of the strip holding portion 30.

On the other hand, the second guide portions 42a, 42a provided on the external fitting engagement portions 35a, 35a are parallel to the ceiling of the corresponding first side portion 11 or second side portion 12 in plan view. Further, the head portions of the support portions 34a, 34a and the side surfaces on both end sides of the wall portion 10 are such that the width dimension of the support portions 34a, 34a goes from the bottom side of the support portions 34a, 34a toward the second guide portion 42a side. It has a tapered shape that becomes smaller as it goes.

In such a spacer 1a, as described above, the second holding parts 32a, 32a are constituted by the supporting parts 34a, 34a formed between the pair of groove-shaped recesses 52a, 52a, 52a, 52a. Therefore, it is more flexible than the second clamping parts 32, 32 of the spacer 1 described above, and even if the entire spacer 1a is integrally molded from a resin material, the strip clamping part 30a can be bent vertically of the welded wire mesh. Strips or horizontal strips can be easily fitted onto the outside.

(Third form for carrying out the invention)
FIG. 14 is a perspective view showing a spacer 1b according to a third embodiment of the invention, which can be manufactured by processing a plate material. 15 to 18 are a front view, a rear view, a side view, and a plan view of the spacer 1b shown in FIG. 14.

The present spacer 1b has a trapezoidal shape in plan view. That is, a flat plate-shaped first side part 11b and a flat second side part 12b are respectively provided upright at positions slightly inside the edges of the two oblique sides of the trapezoidal plate-shaped bottom part 20b over substantially the entire length of both oblique sides. Between the top of the first side 11b and the top of the second side 12b, there is a flat plate-shaped upper bottom side 13b erected on the top edge of the bottom 20b. These first side portion 11b, second side portion 12b, and upper bottom side portion 13b constitute a wall portion 10b of the spacer 1b. Note that the outer dimension of the bottom portion 20b is smaller than the inner diameter of the square M (see FIG. 8) constituting the welded wire mesh WM described above.

The first side portion 11b and the second side portion 12b described above have an inverted trapezoid shape in side view, with the height dimension from the bottom portion 20b gradually decreasing from both ends of the wall portion 10b toward the top. 11b and the top of the second side 12b are flush with the upper bottom side 13b. Two pairs of first clamping parts 31b, 31b and second clamping parts 32b, 32b constituting the strip clamping part 30b are located at appropriate positions in the longitudinal direction of the first side part 11b and the second side part 12b, at a distance from each other. It is located apart from the

In order to be able to manufacture the first holding part 31b from a plate material, the first holding part 31b has a substantially narrow band shape formed by making a pair of cuts 51b and 51b in the first side part 11b or the second side part 12b from the ceiling to the bottom part 20b. The first support portion 33b extends upward from the corresponding first side portion 11b or second side portion 12b from the first support portion 33b. The first support portion 33b is tapered by being bent in a dogleg shape outward from the corresponding first side portion 11b or second side portion 12b from a midway position in the extending direction. A first guide portion 41b is formed to guide W1 or the horizontal strip material W2 into the strip material holding portion 30b.

Of the above-mentioned notches 51b, 51b, the length of the notch 51b on the top side of the wall portion 10b is larger than the length of the notch 51b on the end side of the wall portion 10b. is cut in an L-shape to approximately the extension line of the latter cut 51b. Therefore, the first support part 33b is cantilever-supported by the first side part 11b or the second side part 12b in the region from the tip of the latter notch 51b to the L-shaped tip of the former notch 51b, and is supported by the first clamping member. The portion 31b is obliquely bent slightly inward of the wall portion 10b in the cantilever support region of the first support portion 33b. As a result, when an external force is applied to the first clamping part 31b to fit the strip into the strip clamping part 30b, the first clamping part 31b is bent outward of the strip clamping part 30b, and when the external force is removed, it returns to its original state. It has the flexibility to return to its original position.

On the other hand, in order to enable the second holding part 32b to be manufactured from a plate material, a substantially narrow band is formed by making a pair of cuts 52b, 52b in the first side part 11b or the second side part 12b from the ceiling to the bottom part 20b. This second support portion 34b also extends a predetermined distance above the first side portion 11b or the second side portion 12b. The ceiling of the second support part 34b is made lower in height as it goes toward a second external fitting part 35b, which will be described later. A second guide portion 42b is formed for guiding into the inside of 30b. Here, the dimension between the second support part 34b and the first support part 33b forming a pair is determined according to the diameter of the vertical strip material W1 or the horizontal strip material W2.

Further, the end of the second support portion 34b is formed into a second external fitting portion 35b which has a beak shape and externally engages with the strip. The second external fitting engagement portion 35b is arranged so as to intersect with an axis passing through the center of the strip holding portion 30b, that is, the central axis of the longitudinal strip W1 or the horizontal strip W2 held by the strip sandwiching portion 30b. Therefore, the dimension from the tip of the second external fitting engagement part 35b to the first clamping part 31b is shorter than the dimension from the second support part 34b to the first support part 33b. Note that the dimension from the tip of the second external fitting portion 35b to the ceiling of the corresponding first side portion 11b or second side portion 12b is approximately the same as the diameter of the strip.

Of both cuts 52b, 52b related to the second holding part 32b, the length of the cut 52b on the end side of the wall part 10b is larger than the length of the cut 52b on the top side of the wall part 10b, Furthermore, the former cut 52b is cut in an L-shape to approximately the extension line of the latter cut 52b. Therefore, the second support part 34b is cantilever-supported by the first side part 11b or the second side part 12b in the region from the tip of the latter notch 52b to the L-shaped tip of the former notch 52b, and is supported by the second clamping part. The portion 32b is bent obliquely slightly outward of the wall portion 10b in the cantilever support region of the second support portion 34b. As a result, when an external force is applied to the second clamping part 32b to fit the strip into the strip clamping part 30b, the second clamping part 32b is bent outward of the strip clamping part 30b, and when the external force is removed, the second clamping part 32b is bent back to its original state. It has the flexibility to return to its original position.

When inserting a strip into the strip holding part 30b of the spacer 1b, the first holding part 31b and The second clamping portions 32b are bent in a direction away from each other, and in this state, the vertical strip material W1 or the horizontal strip material W2 is inserted into the strip clamping portion 30b. When the vertical strip material W1 or the horizontal strip material W2 is inserted into the strip material clamping part 30b, the bent first clamping part 31b and second clamping part 32b return to their original positions, as shown in FIG. Since the second external fitting portion 35b is externally engaged with the vertical strip material W1 or the horizontal strip material W2 inserted into the strip material holding portion 30b, the vertical strip material W1 or the horizontal strip material W2 is The material is prevented from being pulled out from the material holding portion 30b.

By the way, both extending regions 21b, 21b extending from the first side 11b and second side 12b of the bottom 20b mentioned above are formed by connecting a plurality of spacers 1b, 1b, . . . in tandem, as described later. At this time, the extending regions 21b, 21b of the inner spacer 1b abut on the inner surfaces of the first side 11b and second side 12b of the outer spacer 1b, and the first side parts of the adjacent spacers 1b, 1b are brought into contact with each other. 11b and the first side portion 11b, and the gap between the second side portion 12b and the second side portion 12b are ensured to have predetermined dimensions. As described above, the first clamping parts 31b, 31b of the spacer 1b are bent toward the inside of the wall part 10b from the first side part 11b and the second side part 12b on which they are provided, while the first clamping parts 31b, 31b of the spacer 1b The two holding parts 32b, 32b are bent outward of the wall part 10b from the first side part 11b and the second side part 12b on which they are provided, but are bent inwardly by both extending regions 21b, 21b of the bottom part 20b. Both the second clamping parts 32b, 32b of the spacer 1b are prevented from coming into contact with the first side part 11b and the second side part 12b of the outer spacer 1b, and similarly, both the first clamping parts 32b of the outer spacer 1b are prevented from coming into contact with the first side part 11b and the second side part 12b of the outer spacer 1b. Since the portions 31b, 31b are prevented from coming into contact with the first side portion 11b and second side portion 12b of the inner spacer 1b, the second holding portions 32b, 32b of the inner spacer 1b and the outer spacer The first holding parts 31b, 31b of 1b are each held in the initial position.

On the other hand, in the extending regions 21b, 21b of the bottom part 20b, a pair of protrusions 22b, 22b, 22b, 22b, each having an inverted right triangular shape in plan view, is provided in order to connect the plurality of spacers 1b, 1b, . . . in tandem. , are provided at appropriate distances from each other in the longitudinal direction of both extension regions 21b, 21b. Correspondingly, protrusions 22b, 22b on the upper bottom side 13b side are provided at appropriate positions in the longitudinal direction of the first side 11b and the second side 12b and in the boundary area with the bottom 20b. First notches 16b, 16b each having a rectangular recess shape are formed into which the first notches 16b and 16b are inserted. Further, protrusions 22b, 22b on the opposite side from the upper bottom side 13b are provided at the positions of the ends of the wall 10b of the first side 11b and the second side 12b, and in the boundary area with the bottom 20b. L-shaped second notches 17b, 17b for entry are provided, respectively.

FIG. 20 is a perspective view showing a state in which a plurality of spacers 1b shown in FIG. 14 are connected in tandem. Note that in FIG. 20, parts corresponding to those shown in FIGS. 14 to 18 are given the same numbers and their explanations will be omitted.

As shown in FIG. 20, the wall 10b of the next spacer 1b is inside the wall 10b of the leading spacer 1b, and both extending regions 21b, 21b of the next spacer 1b are in the first side of the leading spacer 1b. 11b and the inner surface of the second side part 12b, and the protrusions 22b, 22b, 22b, 22b provided in both extending regions 21b, 21b of the next spacer 1b are brought into contact with the inner surface of the first spacer 1b. They are fitted into first notches 16b, 16b and second notches 17b, 17b provided on the side portion 11b and the second side portion 12b, respectively.

At this time, since both extending regions 21b, 21b of the spacer 1b come into contact with the inner surface of the first side portion 11b and the inner surface of the second side portion 12b of the leading spacer 1b, the first side of the adjacent spacers 1b, 1b While the gap between the portion 11b and the first side portion 11b and the gap between the second side portion 12b and the second side portion 12b are maintained at predetermined dimensions, the upper bottom side portions 13b of the adjacent spacers 1b, 1b By maintaining the gap between the spacer and the upper bottom side portion 13b at a predetermined dimension, the distance between the strip material holding portions 30b, 30b of adjacent spacers 1b, 1b is separated by approximately the same value as the outer diameter of the strip material. It looks like this.

On the other hand, in the next spacer 1b, the protrusions 22b, 22b, 22b, 22b of the spacer 1b are the first notches 16b, 16b provided in the first side 11b and second side 12b of the leading spacer 1b. and the second notches 17b, 17b, so when the next spacer 1b is separated from the first spacer 1b, the direction in which the next spacer 1b is connected to the first spacer 1b is in the opposite direction. It is designed so that it can be moved only in one direction.

Further, as shown in FIG. 20, the spacers 1b, 1b are configured such that the center axes of the strip holding parts 30b, 30b are parallel to each other when they are connected to each other, Furthermore, in one plane formed by the central axis of the strip material clamping parts 30b, 30b of the pair of coupled spacers 1b, 1b, the strip material clamping parts 30b, 30b, of the other connected spacers 1b, 1b, . The central axes of ... are also arranged to be flush with each other.

In the spacers 1b, 1b, ... in which a plurality of spacers 1b, 1b, ... ( Alternatively, the vertical strips W1, W1, . . . ) can be externally fitted and clamped with a single touch. In this way, a plurality of spacers 1b, 1b, ... can be attached to a plurality of superimposed welded wire meshes WM, WM, ... at once, so that the plurality of welded wire meshes WM, WM can be attached without forcing workers to do heavy labor. , . . . The time required for attaching the spacers 1b, 1b, . . . to the spacers 1b, 1b, .

Further, as described above, each of the spacers 1b, 1b, . 1b, 1b, ... are attached to each welded wire mesh WM, WM, ... with their tops facing downward and in a substantially vertical posture, so as before, the top welded wire mesh WM is attached to the other welded wire meshes. The spacer 1b attached to the welded wire mesh WM can be easily separated from the plurality of interconnected spacers 1b, 1b, .

On the other hand, when the uppermost welded wire mesh WM is lifted in this way and the spacer 1b attached to the welded wire mesh WM is separated from the plurality of interconnected spacers 1b, 1b, . . . Due to its own weight, the strip clamping part 30b of the spacer 1b rotates around the central axis of the horizontal strip W2 (or vertical strip W1) that is externally clamped so that its bottom 20b is below the welded wire mesh WM. , is held in that position.

Therefore, the installation work by the workers is as simple as sequentially unloading the welded wire meshes WM, WM, ... from the topmost welded wire mesh WM in a superimposed state, transporting them to a predetermined position at the installation site, and lowering and installing them there. Unlike when installing spacers after installation, there is no need to lift the welded wire meshes WM, WM, etc., so the labor required for the work of laying the welded wire meshes WM, WM, ... can be reduced as much as possible. I can do it.

Although the spacer 1b shown in the third embodiment of the invention is provided with the bottom portion 20b, the present invention is not limited to this, and may be configured without the bottom portion 20b. can. For example, the above-mentioned extension regions 21b, 21b and protrusions 22b, 22b, 22b, 22b are provided at the bottom ends of the outer surfaces of the first side portion 11b and the second side portion 12b, respectively, and the first side portion 11b and the second side portion Openings corresponding to the first notches 16b, 16b and second notches 17b, 17b described above may be opened at appropriate positions on the side portion 12b, or openings may be formed in the first and second side portions 11b and 12b. Grooves in the shape of an overturned concave are formed on the inner surface into which the protrusions 22b, 22b, 22b, 22b are inserted.

Further, although the spacer 1b shown in the third embodiment of the invention is constructed using a plate material, the present invention is not limited to this. As in the spacer 1a shown in the second embodiment for the purpose of You may. In that case, instead of the first notches 16b, 16b and the second notches 17b, 17b, a pair of groove-like recesses 52a, 52a as shown in FIG. The first and second clamping parts corresponding to the first clamping parts 31b, 31b and the second clamping parts 32b, 32b may be formed by providing two pairs of each at appropriate positions on the portion 12b. Note that the first clamping part and the second clamping part are not bent obliquely into and out of the wall part 10b like the first clamping parts 31b, 31b and the second clamping parts 32b, 32b described above, and are not bent obliquely into and out of the wall 10b. Like the second holding part 32a shown in FIG. 13, it may be configured to follow the first side part 11b or the second side part 12b.

It goes without saying that the present spacers 1, 1a, and 1b can be applied not only to welded wire meshes but also to other grid-like bodies such as mesh-like fences made of metal or resin.

1 Spacer 1a Spacer 1b Spacer 10 Wall 10b Wall 11 First side 11b First side 12 Second side 12b Second side 16b First notch 17b Second notch 20 Bottom 20b Bottom 21b Extension Extrusion area 22b Projection part 31 First clamping part 31a First clamping part 31b First clamping part 32 Second clamping part 32b Second clamping part 30 Strip clamping part 30a Strip clamping part 30b Strip clamping part 33b First support part 34 Support part 34a Support part 34b Second support part 35 External fitting engagement part 35b Second external fitting engagement part 41 First guide part 41a First guide part 41b First guide part 42 Second guide part 42a Second guide part 42b Second guide part 51b Cut 52a Groove-shaped recess 52b Cut WM Welded wire mesh W1 Vertical strip material W2 Horizontal strip material M Square G Construction target surface

Claims (18)

It is attached to a lattice-like body formed by joining the intersecting parts of a plurality of vertical strips and a plurality of horizontal strips arranged in a lattice pattern, and between the lattice-like body and the construction target surface on which the lattice-like body is constructed. In a spacer that provides a gap,
a wall having at least two sides extending in different directions to carry a grid;
a strip holding part supported by the wall part and rotatably holding the vertical strip or the horizontal strip;
an external fitting engagement part provided on the strip clamping part and externally engaging with a vertical strip or a horizontal strip clamped in the strip clamping part;
The strip holding part and/or the external fitting part has flexibility,
The wall portion includes a first side portion and a second side portion that are arranged rotationally symmetrically,
The strip holding part is configured to pinch the vertical strip or horizontal strip that is placed in contact with the first side and the second side.
A spacer characterized by : The strip clamping part includes a first clamping part disposed on the rotationally symmetrical center side and a second clamping part disposed on the opposite side,
The first holding part is constructed between the first side part and the second side part,
2. The spacer according to claim 1 , wherein the second clamping part is arranged opposite to the first clamping part on the first side part and the second side part, respectively. Two groove-shaped recesses are formed in the first side part and the second side part, and are provided at appropriate positions from the ceiling to the bottom side, and are spaced apart from each other in the longitudinal direction of the ceiling. can be,
3. The spacer according to claim 2 , wherein the second holding part includes a support part formed between both groove-like recesses. 3. The spacer according to claim 2 , wherein the second holding part is configured to stand up on the ceiling of the first side part and the second side part. A bottom portion is extended at the bottom of the first side portion and the second side portion so as to close a gap between the first side portion and the second side portion,
The wall portion has a first side portion and a second side portion formed in a dogleg shape,
A portion of the wall portion on the distal side of the first clamping portion is fitted into a portion surrounded by the first side, second side, first clamping portion, and bottom of another spacer so that they can be connected to each other. 5. The spacer according to claim 2 , wherein the spacer is configured as follows. Claim: The wall portion and the strip clamping portion are configured such that, when connected to each other, the central axes of the vertical strips or horizontal strips held by each strip clamping portion are flush with each other. 5. The spacer described in 5 . When the strip clamping parts are connected to each other, the central axis of the vertical strip or horizontal strip clamped by each strip clamping part has a dimension corresponding to the outer diameter of the vertical strip or horizontal strip. 7. A spacer as claimed in claim 5 , wherein the spacer is configured differently by: The strip clamping part includes a first clamping part disposed on the rotationally symmetrical center side and a second clamping part disposed on the opposite side,
2. The spacer according to claim 1, wherein a pair of first and second holding parts are provided on the first side and the second side, respectively. The first side portion and the second side portion are formed of a plate material,
9. The spacer according to claim 8 , wherein the pair of first and second clamping parts are formed by cutting the corresponding first and second side parts. Two groove-shaped recesses are formed in the first side part and the second side part, and are provided at appropriate positions from the ceiling to the bottom side, and are spaced apart from each other in the longitudinal direction of the ceiling. can be,
9. The spacer according to claim 8 , wherein the second holding part includes a support part formed between both groove-like recesses. Extending portions extending to the outside of the wall portions are provided on the outer surfaces of the first side portion and the second side portion, respectively, from one end to the other end in the longitudinal direction of the first side portion and the second side portion. at least two protrusions are provided at appropriate positions in the longitudinal direction of both extensions, flush with the extension,
Further, the first side portion and the second side portion are provided with fitting portions into which the respective protrusions provided on other spacers are fitted,
11. The structure according to claim 8 , wherein each of the protrusions provided on another spacer is fitted into the fitting parts of the first side part and the second side part so that they can be connected to each other. Spacer. A bottom portion is extended at the bottom of the first side portion and the second side portion so as to close a gap between the first side portion and the second side portion,
12. The spacer of claim 11 , wherein the extension and protrusion are provided flush with the bottom. Claim: The wall portion and the strip clamping portion are configured such that, when connected to each other, the central axes of the vertical strips or horizontal strips held by each strip clamping portion are flush with each other. 12. The spacer according to 11 or 12 . When the strip clamping parts are connected to each other, the central axis of the vertical strip or horizontal strip clamped by each strip clamping part is in accordance with the outer diameter of the vertical strip or horizontal strip. 14. The spacer according to claim 11 , wherein the spacer is configured to differ only in dimension. 15. The spacer according to claim 2 , wherein the externally fitting portion is provided on the second holding portion or the first holding portion. The external fitting engagement part and the first clamping part or the second clamping part in which the external fitting engagement part is not provided respectively guide the vertical strip material or the horizontal strip material to be clamped into the inside of the strip material clamping part. 16. The spacer according to claim 15 , further comprising a guide portion. A plurality of spacers according to any one of claims 5 to 7 or 11 to 14 are interconnected,
The strip holding portions of each connected spacer are arranged opposite to the vertical strips or horizontal strips of the plurality of superimposed lattice-like bodies,
By applying a force to each spacer toward the opposing vertical or horizontal strip material to the strip material clamping portion of each spacer, the opposing vertical or horizontal strip material is held between the strip material clamping portions of each spacer. A method of using spacers, characterized in that each spacer is attached to a corresponding grid-like body. A plurality of spacers according to any one of claims 5 to 7 or 11 to 14 are interconnected,
The strip holding portions of each connected spacer are arranged opposite to the vertical strips or horizontal strips of the plurality of superimposed lattice-like bodies,
By applying a force to each spacer toward the opposing vertical or horizontal strip material to the strip material clamping portion of each spacer, the opposing vertical or horizontal strip material is held between the strip material clamping portions of each spacer. Attach each spacer to the corresponding grid body,
Then, by pulling up the uppermost lattice-shaped body above the other lattice-shaped bodies, the spacer attached to the lattice-shaped body is separated from the other connected spacers. 1. A method for laying a lattice-like body, characterized by repeating an operation of pulling up the lattice-like body, transporting the lifted lattice-like body to an appropriate position on a surface to be constructed, and installing it at that position.

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