JP2008266991A - Device for adjusting mold form member height - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for adjusting mold form member height, capable of easily adjusting the height of a mold form member and increasing the working amount of asphalt pavement per day. <P>SOLUTION: This mold form member height adjusting device comprises a pedestal 11, a bolt 15, rotatably held on the pedestal 11 and having a male screw part 17 projecting from the pedestal 11 upward, and a nut 18 screwed with the male screw part 17 of the bolt 15 and fitted to the mold form member 31. The pedestal 11 comprises a bottom plate 12, a spacer 13 fitted to the upper side of the bottom plate 12 and forming a space allowing the head part 16 of the bolt 15 to be rotated, and a ceiling plate 14 fitted to the upper side of the spacer 13 and preventing the head part 16 of the bolt 15 from coming out. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  This invention, when constructing asphalt pavement, adjust the thickness of the asphalt pavement to make the surface of the asphalt pavement the same height, and install it on both sides or one side of the construction width to ensure the asphalt pavement construction width accurately The present invention relates to a formwork material height adjusting device for adjusting the height of a formwork material to be used.

  When constructing asphalt pavement, the height of the formwork material to be installed should be constant, but the height of the formwork material will not be constant depending on the field conditions such as the condition of the groundwork. Need to be adjusted.

  The height of the formwork material is adjusted based on the reference height obtained by surveying. Is inserted under the formwork material (see, for example, Non-Patent Document 1, Non-Patent Document 2, and Non-Patent Document 3).

Ichiro Uchida and five others, “Pavement Vol. 2 No. 11 1967 ”construction book, issued November 1, 1967, p23 Shigeo Kondo and three others, "Road construction course (6) Road pavement construction" Sankaido Co., Ltd., issued April 20, 1972, p200-201 Saburo Matsuno, Hiromi Yamashita, “Pavement Technology Questions and Answers” Construction Book, published on October 1, 1980, p155-156

  When adjusting the height of the formwork by the above method, especially during the night, it is difficult to see the water thread indicating the reference height, and it takes time to adjust the height of the formwork, so the amount of asphalt pavement work per day Is limited.

  The present invention has been made to solve the above-mentioned disadvantages, and can easily adjust the height of the mold material, and can increase the amount of asphalt pavement work per day. An adjustment device is provided.

The present invention is as follows.
(1) A pedestal, a bolt that is rotatably supported by the pedestal, and has a male screw portion protruding upward from the pedestal, and a nut that is screwed into the male screw portion of the bolt and attached to the formwork member. Formwork material height adjustment device.
(2) In the formwork material height adjusting device according to (1), the formwork material includes a formwork and an attachment plate attached to the lower surface of the formwork, and the attachment plate is formed of the nut. It is attached to the lower surface.
(3) In the formwork material height adjusting device according to (1) or (2), an engaging portion that engages a tip end portion of a tool that rotates the bolt with an upper end portion of the male screw portion of the bolt. It is provided.
(4) In the formwork height adjusting device according to any one of (1) to (3), the pedestal is attached to a bottom plate and an upper side of the bottom plate, and a head portion of the bolt is rotatable. And a top plate that is attached to the upper side of the spacer and prevents the head of the bolt from coming off.
(5) A pedestal, a male screw member installed upright on the pedestal, a nut screwed into the male screw member, an annular flat flange member attached to the lower surface of the nut, A formwork material height adjusting device comprising: an attachment member that rotatably holds a periphery and is attached to the formwork material.
(6) In the formwork material height adjusting apparatus according to (5), the attachment member is attached to the lower side of the formwork material.

According to this invention, since the nut attached to the mold member is screwed into the male screw portion of the bolt, the nut and the mold member can be moved up and down by rotating the bolt.
Therefore, by rotating the bolt, the height of the formwork can be easily adjusted, and the amount of asphalt pavement work per day can be increased.
And, since the formwork material is composed of the formwork and the mounting plate attached to the lower surface of this formwork, and the mounting plate is attached to the lower surface of the nut, the thickness of the asphalt pavement should be adjusted from a thin value Can do.
Furthermore, since the engaging part which the front-end | tip part of the tool which rotates a volt | bolt engages was provided in the upper side edge part of the external thread part of a volt | bolt, by engaging the front-end | tip of a tool with the engaging part of a volt | bolt, It can be easily rotated to easily adjust the height of the formwork.
The pedestal is attached to the bottom plate and the upper side of the bottom plate so that the head of the bolt forms a rotatable space, and the top is attached to the upper side of the spacer to prevent the head of the bolt from coming out. Since it is comprised with the board, since the structure of a base becomes simple and a base becomes cheap, a formwork material height adjustment apparatus can be provided at low cost.
According to another invention, since the attachment member attached to the formwork material holds the flange member attached to the nut screwed into the male screw member, the formwork material can be obtained by rotating the nut. Can be moved up and down.
Therefore, by rotating the nut, it is possible to easily adjust the height of the mold material and increase the amount of asphalt pavement work per day.
And since the attachment member was attached to the lower side of a formwork material, the thickness of asphalt pavement can be adjusted from a thin value.

  Embodiments of the present invention will be described below with reference to the drawings.

1A is a plan view of a formwork material height adjusting device according to an embodiment of the present invention, FIG. 1B is a cross-sectional view taken along line BB in FIG. 1A, and FIG. Is a cross-sectional view taken along the line CC of FIG. 1A, and FIGS.
The formwork material is shown as a partial view.
2 and 3 correspond to FIG. 1B, but are partially omitted.

  In FIG. 1, the formwork material height adjusting device 1 includes a pedestal 11, a bolt 15 rotatably held on the pedestal 11, and a male screw portion 17 protruding upward from the pedestal 11, and a male screw portion 17 of the bolt 15. And the nut 18 attached to the formwork 31.

  The pedestal 11 is flat and has a bottom plate 12 provided with a plurality of fixing holes 12a and a hole 13a attached to the upper side (upper surface) of the bottom plate 12 to form a space in which the head 16 of the bolt 15 can rotate. Are provided on the upper side (upper surface) of the spacer 13 and an insertion hole 14a through which the male threaded portion 17 of the bolt 15 is inserted. It is comprised with the flat top plate 14 which blocks | prevents coming out.

The above-described bolt 15 is configured to include, for example, a flat head 16 that is rotatably supported by the pedestal 11, and a male screw portion 17 that is connected to the head 16 and protrudes upward from the pedestal 11.
Further, a cross groove 17a that rotates the bolt 15 and engages, for example, a tip portion of a Phillips screwdriver is provided as an engaging portion at an upper end portion of the male screw portion 17 on the side opposite to the head portion 16.

The above-described mold material 31 includes a mold frame 32 having a uniform width and a uniform thickness provided with a through hole 32a through which the nut 18 is inserted, and a mounting plate 33 attached to the lower surface of the mold frame 32. It consists of and.
And as for the attachment plate 33, while the upper surface of a periphery is attached to the lower surface of the nut 18, the insertion hole 34a in which the external thread part 17 of the volt | bolt 15 is penetrated is provided in the space | interval of 0.5 m-2.0 m, for example, A plurality of mounting holes that are inserted into the mold frame 32 from the lower surface side, for example, a plurality of driving pieces 32b having a triangular shape pointed upward, and a shaft portion of a mounting screw 36 having a flat head. 34c, for example, a support flat plate portion 34 having a length of 4 m, and standing side plate portions 35A and 35B that stand in parallel from both side ends of the support flat plate portion 34 and are in contact with both side surfaces of the mold frame 32. It is configured.

Next, an example of assembling the mold material 31 will be described.
First, the support flat plate portion 34 is made to correspond to the lower surface of the mold frame 32, the upright side plate portions 35A and 35B are made to correspond to the side surfaces of the mold frame 32, and the center of the insertion hole 34a is made to correspond to the center of the through hole 32a. Position.
Then, for example, by hitting the lower surface of the support flat plate portion 34 with a hammer or the like, the plurality of mounting attachment pieces 34b are driven into the mold frame 32 and the nut 18 is positioned in the through hole 32a, and then the plurality of mounting holes. The shaft portion of the mounting screw 36 is inserted into the mold 34c and screwed into the mold 32, and the mounting plate 33 is mounted on the mold 32 as shown in FIGS.
The through hole 34 c has a truncated cone shape that expands downward, so that the head of the mounting screw 36 does not protrude downward from the support flat plate portion 34.

Next, an example of installation and height adjustment of the formwork material height adjusting device 1 will be described.
First, the base 11 is installed at a predetermined position with a predetermined interval.
Next, the male thread portion 17 of the bolt 15 is inserted into the insertion hole 34a of the mold member 31 having the mounting plate 33 attached to the mold 32 at intervals of the installed base 11, and as shown in FIG. The upper end of the male screw portion 17 is brought into contact with the side.
In this state, the tip of the Phillips screwdriver is inserted into the nut 18 to engage with the cross groove 17a provided at the upper end of the male screw portion 17, the bolt 15 is rotated, and the male screw portion 17 is screwed into the nut 18. When the support flat plate portion 34 is brought into contact with the top plate 14, the state shown in FIGS.
Then, for example, a nail is driven into each fixing hole 12a of each bottom plate 12, and each bottom plate 12 is fixed at a predetermined position with the head of the nail.
In the state shown in FIGS. 1B and 1C, the upper end of the male screw portion 17 does not protrude from the upper surface of the mold member 31 (former frame 32), and the upper surface of the mold member 31 (former frame 32). It is preferable that it is flush with the upper surface of the mold member 31 (former frame 32).

In this state, the upper end of the formwork 31 (formwork 32) at the position where the formwork height adjusting device 1 is installed is measured using, for example, a transit, and the upper end of the formwork 31 (form 32) is measured. By rotating the nut 18 by engaging the tip of the Phillips screwdriver 17 with the cross groove 17a of the male screw portion 17 so that the desired height is as desired (expected), for example, as shown in FIG. The upper end of 31 (formwork 32) is adjusted.
Adjustment of the upper end of this formwork material 31 (formwork 32) is performed with respect to each formwork material height adjusting device 1.
If there is a possibility that the mold frame 32 will sink (lower or bend) when constructing asphalt pavement, the spacer is placed below the mold frame 32 at a predetermined interval. The mold 32 is preferably inserted so that it does not sink (does not fall or flex).

  Thus, after asphalt pavement is performed by installing it on both sides or one side of the construction width in order to accurately secure the construction width of the asphalt pavement, the mold material height adjusting device 1 and the mold material 31 are removed, and the mold is removed. Asphalt pavement is completed by removing the frame material height adjusting device 1 and the mold material 31 and repairing the parts.

As described above, according to one embodiment of the present invention, the nut 18 attached to the mold member 31 is screwed into the male screw portion 17 of the bolt 15, so that the nut 18 is rotated by rotating the bolt 15. And the formwork 31 can be moved up and down.
Therefore, by rotating the bolt 15, the height of the formwork 31 can be easily adjusted, and the amount of asphalt pavement work per day can be increased.
And since the formwork 31 is composed of the formwork 32 and the attachment plate 33 attached to the lower surface of the formwork 32, and the attachment plate 33 is attached to the lower surface of the nut 18, the thickness of the asphalt pavement is reduced. It can be adjusted from a thin value.
Furthermore, since the cross groove 17a that engages the tip portion of the tool that rotates the bolt 15 is provided at the upper end of the male screw portion 17 of the bolt 15, the tip of the tool is engaged with the cross groove 17a of the bolt 15. Thus, the height of the mold member 31 can be easily adjusted by simply rotating the bolt 15.
The pedestal 11 is attached to the bottom plate 12 and the top of the bottom plate 12, the spacer 13 that forms a space in which the head 16 of the bolt 15 can rotate, and the top of the bolt 15. Since it comprises the top plate 14 which prevents the part 16 from coming out, the structure of the pedestal 11 becomes simple and the pedestal 11 becomes inexpensive, thereby providing the formwork material height adjusting device 1 at a low cost. it can.
Furthermore, since the upper end of the male screw portion 17 is positioned below the upper end of the mold member 31 with the mold member 31 lowered to the lowest, the mold frame can be formed even if the thickness of the asphalt pavement is minimized. The male thread portion 17 does not protrude from the material 31, and asphalt pavement can be efficiently constructed.

  4 (a) and 4 (b) are plan views of the male screw portion showing another example of the engaging portion provided in the male screw portion, a partial side view of the male screw portion, and FIGS. 5 (a) and 5 (b) are provided in the male screw portion. The top view of the external thread part which shows the further another example of an engaging part, the partial side view of an external thread part, FIG. 6 (a), (b) of the external thread part which shows the further another example of the engaging part provided in an external thread part. It is a top view and the partial side view of an external thread part.

In FIG. 4, a linear groove 17 b that rotates the bolt 15 and engages, for example, a tip portion of a flathead screwdriver is provided as an engaging portion at the upper end portion of the male screw portion 17 on the side opposite to the head portion. ing.
In FIG. 5, an engagement protrusion 17 c of a regular hexagonal column that engages a bolt 15, for example, a hexagonal box spanner (box spanner), is engaged with the upper end portion of the male screw portion 17 on the side opposite to the head. It is provided as a part.
In FIG. 6, a bolt 15 is rotated at the upper end portion of the male screw portion 17 on the side opposite to the head portion. For example, a regular hexagonal column-shaped engaging concave portion 17d with which a tip portion of a hexagon wrench is engaged serves as an engaging portion. Is provided.

  Even if any one of the groove 17b, the engagement protrusion 17c, and the engagement recess 17d shown in FIGS. 4 to 6 is provided on the upper end of the male screw portion 17, as in the embodiment shown in FIGS. The height of the can be adjusted.

FIG. 7 is an explanatory view showing another example of the formwork material, FIG. 8 is an explanatory view showing still another example of the formwork material, and the same reference numerals are given to the same or corresponding parts as in FIGS. The description is omitted.
7 and 8 are cross-sectional views corresponding to FIG. 1 (c).

The mold member 31 shown in FIG. 7 is configured in the same manner as the attachment plate 33 shown in FIG. 1 except that the standing side plate portions 35A and 35B are removed from the attachment plate 33 shown in FIG.
The mold member 31 shown in FIG. 8 is configured in the same manner as the attachment plate 33 shown in FIG. 1 except that the standing side plate portion 35B is removed from the attachment plate 33 shown in FIG.

  Even when the mold member 31 shown in FIG. 7 or FIG. 8 is used, the height of the mold member 31 can be adjusted as in the embodiment shown in FIGS.

FIG. 9A is a plan view of a formwork material height adjusting device according to another embodiment of the present invention, FIG. 9B is a cross-sectional view taken along line BB in FIG. 9A, and FIG. ) Is a cross-sectional view taken along the line CC of FIG. 9A, and FIGS. 10 and 11 are operation explanatory views.
The formwork material is shown as a partial view.
10 and 11 correspond to FIG. 9C.

  In FIG. 9, the formwork material height adjusting device 1 includes a pedestal 21 that is flat and provided with a plurality of fixing holes 21, a male screw member 22 that is mounted upright on the upper surface of the pedestal 21, and the male screw member. 22, a nut 23 that is screwed onto 22, an annular flat flange member 24 that is attached to the lower surface of the nut 23, and a mounting member that rotatably holds the periphery of the flange member 24 and is attached to the mold member 41. 25.

In the above-described mold material 41, the lower hole is a large-diameter hole, the upper hole is concentric with the lower hole and smaller in diameter than the lower hole, and the nut 23 is inserted into the upper small-diameter hole. It is comprised only with the formwork 42 provided with the stepped through-hole 42a.
The mounting member 25 is inserted into a large-diameter hole below the stepped through hole 42a provided in the mold 42, and a nail is driven into the mounting hole provided in the mounting piece (not shown), thereby It is attached flush with the lower surface of the frame 42.
The mold 42 is, for example, 4 m long and provided with stepped through holes 42a at intervals of 0.5 m to 2.0 m.

Next, an example of attachment of the attachment member 25 to the formwork material 41 (formwork 42) will be described.
First, the attachment member 25 is inserted into the portion of the large diameter hole on the lower side of the stepped through hole 42a provided in the mold 42 so that the nut 23 is positioned in the stepped through hole 42a.
Note that when the mounting member 25 is inserted into the large-diameter hole below the stepped through hole 42a, a plurality of mounting pieces (not shown) of the mounting member 25 are also housed in the mounting piece housing recess.
And when the shaft portion of the mounting screw is inserted and screwed into the mounting holes of the plurality of mounting pieces provided in the mounting member 25, the mounting hole has a truncated cone shape that expands downward. As shown in FIGS. 9B and 9C, the head does not protrude to the lower side of the mounting member 25 and the formwork 42, and the attachment member 25 can be attached to the formwork material 41 (formwork 42). .
Further, the upper end of the nut 23 does not protrude from the upper surface of the mold material 41 (form frame 42) in the state shown in FIGS. 9B and 9C, and the upper surface of the mold material 41 (form frame 42). It is preferable to be flush with the upper surface of the mold material 41 (form frame 42).

Next, an example of installation and height adjustment of the formwork material height adjusting device 1 will be described.
First, the base 21 is installed at a predetermined position with a predetermined interval.
Next, the male screw member 22 is inserted into the flange member 24 attached to the mold frame 42 at intervals between the installed bases 21 and the upper end of the male screw member 22 is in contact with the lower side of the nut 23 as shown in FIG. To.
In this state, the tip of a hexagonal box spanner (box spanner) is inserted into the stepped through hole 42a from above and engaged with the nut 23, the nut 23 is rotated, and the nut 23 is screwed into the male screw member 22. When the attachment member 25 is brought into contact with the base 21, the state shown in FIGS. 9B and 9C is obtained.
Then, for example, a nail is driven into each fixing hole 21a of each pedestal 21, and each pedestal 21 is fixed at a predetermined position with the head of the nail.
In the state shown in FIGS. 9B and 9C, the upper end of the male screw member 22 does not protrude from the upper surface of the mold member 41 (form frame 42), and the upper surface of the mold member 41 (form frame 42) It is preferable to be flush with the upper surface of the mold material 41 (form frame 42).

In this state, the upper end of the formwork material 41 (formwork 42) at the position where the formwork material height adjusting device 1 is installed is measured using, for example, a transit, and the upper end of the formwork material 41 (formwork 42) is measured. 11, by rotating the nut 23 with the end of the hexagonal box spanner (box spanner) engaged with the nut 23 so that the desired height is as desired (expected), for example, as shown in FIG. The upper end of the material 41 (form 42) is adjusted.
The upper end of the mold material 41 (form 42) is adjusted for each mold material height adjusting device 1.
If there is a risk that the mold frame 42 may sink (lower or bend) when constructing asphalt pavement, the spacer is placed below the mold frame 42 at a predetermined interval. It is preferable to insert in order to prevent the formwork 42 from sinking (not descending or bending).

  Thus, after asphalt pavement is performed by installing it on both sides or one side of the construction width in order to ensure the asphalt pavement construction width accurately, the mold material height adjusting device 1 and the mold material 41 are removed, and the mold is removed. Asphalt pavement is completed by removing the frame material height adjusting device 1 and the mold material 41 and repairing the parts.

As described above, according to another embodiment of the present invention, the attachment member 25 attached to the mold member 41 holds the flange member 24 attached to the nut 23 screwed into the male screw member 22. Therefore, the mold material 41 can be moved up and down by rotating the nut 23.
Therefore, by rotating the nut 23, the height of the mold material 41 can be easily adjusted, and the amount of asphalt pavement work per day can be increased.
And since the attachment member 25 was attached to the lower side of the formwork material 41, the thickness of asphalt pavement can be adjusted from a thin value.
Furthermore, since the upper end of the male screw member 22 and the upper end of the nut 23 are positioned below the upper end of the mold frame material 41 with the mold frame material 41 lowered to the minimum, the thickness of the asphalt pavement is minimized. However, the male screw member 22 and the nut 23 do not protrude from the mold material 41, and the asphalt pavement can be efficiently constructed.

In the above-described embodiment, an example in which nails are driven into the fixing holes 12a and 21a to fix the bases 11 and 21 is shown. However, the nails are replaced with mounting screws, or provided on the bottom plate 12 and the base 21 on the support flat plate portion 34. A plurality of driving mounting pieces having the same shape as the driving mounting piece 32b are provided, and the plurality of driving mounting pieces are driven and fixed, or fixed with a nail or mounting screw and a plurality of driving pieces, or with an adhesive. It may be pasted.
Moreover, although the example which made the engaging protrusion 17c as an engaging part the hexagonal column shape (regular hexagonal column shape) was shown, other shapes, for example, a triangular column shape (regular triangular column shape), a square column shape (regular square column shape), a pentagon, etc. It may be columnar (regular pentagonal), octagonal (regular octagonal), or the like.
Moreover, although the example which made the engaging recessed part 17d as an engaging part the hexagonal column shape (regular hexagonal column shape) recessed part was shown, other shapes, for example, a triangular columnar shape (regular triangular columnar shape) recessed part, square columnar shape (regular square shape) Column-shaped recesses, pentagonal columnar (regular pentagonal columnar) recesses, octagonal columnar (regular octagonal columnar) recesses, and the like may be used.
Further, the male screw portion 17, the male screw member 22, and the nut 23 are placed in the formwork in a state where the mold materials 31 and 41 are lowered to the lowest position (FIGS. 1B and 1C or FIGS. 9B and 9C). Although the example which does not project to the upper side of the materials 31 and 41 was shown, if there is no trouble in work, the male screw part 17, the male screw member 22, and the nut 23 will be used as the mold material in a state where the mold materials 31 and 41 are lowered. You may make it protrude above 31 and 41. FIG.
In addition, an example in which the mounting plate 33 is driven into the mold 32 with the mounting pieces 32b and the mounting screws 36 is shown. However, the mounting plate 33 is driven into the mold 32 with only the mounting pieces 32b, or only the mounting screws 36 or nails. Or you may attach with another means, for example, an adhesive agent.
Moreover, although the example which fixes the attachment member 25 to the formwork material 41 (formwork 42) with the attachment screw was shown, the attachment member 25 is shape | molded with the attachment screw by press-fitting the attachment member 25 in the stepped through-hole 42a. You may attach to the frame material 41 (formwork 42).
Moreover, although the material of each member which comprises the formwork material height adjustment apparatus 1 was not mentioned, the material of each member which comprises the formwork material height adjustment apparatus 1 is metals, such as iron, stainless steel, and aluminum, It can be composed of plastics including waste plastic.
Moreover, attachment to the formwork materials 31 and 41 of the formwork material height adjusting device 1 can be performed by methods other than the above-described methods, for example, welding, welding, adhesion, etc., depending on the material.
Moreover, although the example which adjusts while measuring the upper end of the formwork materials 31 and 41 (formwork 32 and 42) using a transit was demonstrated, the formwork materials 31 and 41 (formwork 32 and 42) are stretched with a water thread. ) Or the upper ends of the mold materials 31 and 41 (form frames 32 and 42) may be adjusted using a level meter.

  In the embodiment of the present invention, when the thickness of the molds 32 and 42 is 15 mm, the thickness of the asphalt pavement is 30 mm to 40 mm (the male screw portion 17, the male screw member 22, and the nut 23 on the upper side of the mold materials 31 and 41. Can be adjusted in the range of 30 mm to 50 mm), and when the thickness of the molds 32 and 42 is 20 mm, the thickness of the asphalt pavement is 35 mm to 50 mm (male thread portion 17, male thread member 22 When the nut 23 may be protruded above the formwork materials 31 and 41, the thickness can be adjusted within the range of 35 mm to 60 mm). When the thickness of the formwork 32 and 42 is 30 mm, the thickness of the asphalt pavement Can be adjusted within a range of 45 mm to 70 mm (45 mm to 80 mm when the male screw portion 17, the male screw member 22, and the nut 23 may be protruded to the upper side of the mold members 31 and 41). When the thickness of the molds 32 and 42 is 40 mm, the thickness of the asphalt pavement is 55 mm to 90 mm (when the male screw portion 17, the male screw member 22 and the nut 23 may protrude above the mold materials 31 and 41. Can be adjusted within a range of 55 mm to 100 mm, and when the thickness of the molds 32 and 42 is 50 mm, the thickness of the asphalt pavement is 65 mm to 110 mm (the male screw portion 17, the male screw member 22, and the nut 23 are used as the mold material. In the case where it is allowed to protrude upwards of 31 and 41, it was possible to adjust in the range of 65 mm to 120 mm.

(A) is a top view of the formwork material height adjustment apparatus which is one Example of this invention, (b) is sectional drawing by the BB line of Fig.1 (a), (c) is Fig.1 (a). It is sectional drawing by CC line | wire. It is operation | movement explanatory drawing. It is operation | movement explanatory drawing. (A), (b) is the top view of the external thread part which shows the other example of the engaging part provided in an external thread part, and the partial side view of an external thread part. (A), (b) is the top view of the external thread part which shows the further another example of the engaging part provided in an external thread part, The partial side view of an external thread part. (A), (b) is the top view of the external thread part which shows the further another example of the engaging part provided in an external thread part, The partial side view of an external thread part. It is explanatory drawing which shows the other example of a formwork material. It is explanatory drawing which shows the further another example of a formwork material. (A) is a plan view of a formwork material height adjusting device according to another embodiment of the present invention, (b) is a sectional view taken along line BB in FIG. 9 (a), and (c) is FIG. 9 (a). It is sectional drawing by CC line | wire. It is operation | movement explanatory drawing. It is operation | movement explanatory drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Formwork material height adjustment apparatus 11 Base 12 Bottom plate 12a Fixing hole 13 Spacer 13a Hole 14 Top plate 14a Insertion hole 15 Bolt 16 Head 17 Male thread part 17a Cross groove (engagement part)
17b Groove (engagement part)
17c engagement protrusion (engagement part)
17d Engaging recess (engaging part)
18 Nut 21 Base 21a Fixing hole 22 Male screw member 23 Nut 24 Flange member 25 Mounting member 31 Mold frame material 32 Mold frame 32a Through hole 33 Mounting plate 34 Support flat plate portion 34a Insertion hole 32b Driving mounting piece 34c Mounting hole 35A Standing side plate portion 35B Standing side plate part 36 Mounting screw 41 Formwork material 42 Formwork 42a Stepped through hole

Claims (6)

A pedestal,
A bolt that is rotatably supported by the pedestal and has a male screw portion protruding upward from the pedestal;
A nut that is screwed into the male thread of this bolt and attached to the formwork;
Formwork material height adjustment device equipped with. In the formwork height adjustment device according to claim 1,
The formwork material comprises a formwork and a mounting plate attached to the lower surface of the formwork,
The mounting plate is attached to the lower surface of the nut;
Formwork material height adjusting device characterized by that. In the formwork height adjustment device according to claim 1 or 2,
An engagement portion is provided on the upper end portion of the male screw portion of the bolt to engage a tip portion of a tool that rotates the bolt.
Formwork material height adjusting device characterized by that. In the formwork material height adjusting device according to any one of claims 1 to 3,
The pedestal is attached to the bottom plate, an upper side of the bottom plate, and a spacer that forms a space in which the bolt head can rotate, and is attached to the upper side of the spacer to prevent the bolt head from slipping out. It consists of a top plate,
Formwork material height adjusting device characterized by that. A pedestal,
A male screw member mounted upright on this pedestal;
A nut screwed into the male screw member;
An annular flat flange member attached to the bottom surface of the nut;
An attachment member that rotatably holds the periphery of the flange member and is attached to the formwork material;
Formwork material height adjustment device equipped with. In the formwork material height adjusting device according to claim 5,
The attachment member is attached to the lower side of the formwork material,
Formwork material height adjusting device characterized by that.

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