JP3228807U - Formwork tools - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to be used in common for both fixing a P-con and assembling a formwork binding member, and to easily perform work related to assembling and disassembling the formwork without requiring replacement and confirmation of tools. Provide a tool for formwork that can be used. SOLUTION: A mold tool 1 fixes or removes the P-con C to the inner surface of the form panel P while penetrating a screw shaft portion C2 of the P-con C from the inner surface to the outer surface of the form panel P. Therefore, the conical fitting recess 11 formed along the outer peripheral surface of the P-con main body C1 and the base end portion F1b of the tie rod F1 of the formwork binding member F are attached to the screw shaft portion C2 of the P-con C. In order to assemble or remove the formwork binding member F with respect to the outer surface of the formwork panel P while screwing, the tip portion F1a of the tie rod F1 is rotatably fitted with a groove hole 12 formed at the bottom of the recess 11. It is characterized by having. [Selection diagram] FIG. 7

Description

The present invention relates to, for example, a formwork tool that can be used for assembling and disassembling a concrete formwork.

For example, when assembling a concrete formwork, the P-con is fixed to the inner surface of the formwork while penetrating the P-con bolt (screw shaft) from the inner surface to the outer surface of the formwork, and the formwork is used. A pair of P-cons facing each other on the inner surface side of the plate are connected to each other with a separator, and the screw holes (base end of the tie rod) of the formwork binding member are screwed into the bolts of the P-con to form the formwork binding member. It is assembled to the outer surface of the mold plate in a state of being fastened to the P-con (see, for example, FIG. 5 of Patent Document 1). Fixing the P-con to the formwork plate and assembling the formwork binding member is performed by using an electric screwdriver after exchanging with a formwork tool such as a dedicated socket suitable for each.

Japanese Unexamined Patent Publication No. 11-22301

However, in the above-mentioned conventional formwork tool, the socket for fixing the P-con and the socket for assembling the formwork binding member are different from each other, and it is necessary to replace the socket with a socket suitable for each work before using the electric screwdriver. Therefore, there is a problem that it is troublesome to replace and check the tools when assembling and disassembling the formwork, and the work becomes complicated.

The present invention has been made in view of the above points, and can be used in common for both fixing the P-con and assembling the formwork binding member, and as a result, the formwork does not require replacement or confirmation of tools. It is an object of the present invention to provide a formwork tool capable of easily performing work related to assembling and disassembling.

(1) A socket-shaped formwork tool capable of fastening a formwork binding member to a P-con arranged on the inner surface of the formwork panel from the outer surface side of the formwork panel.
A cone formed along the outer peripheral surface of the P-con in order to fix or remove the P-con to the inner surface while penetrating the screw shaft portion of the P-con from the inner surface to the outer surface of the form panel. Shaped fitting recess and
The tip of the tie rod can be rotated in order to assemble or remove the formwork binding member with respect to the outer surface of the formwork panel while screwing the base end portion of the tie rod of the formwork binding member to the screw shaft portion. With a groove hole formed in the bottom of the fitting recess,
A tool for formwork, characterized by having.

In the invention of (1), the formwork tool is a socket-like tool capable of fastening the formwork binding member to the P-con arranged on the inner surface of the formwork panel from the outer surface side of the formwork panel. It has a fitting recess and a groove hole.
The fitting recess has a conical shape along the outer peripheral surface of the P-con in order to fix or remove the P-con to the inner surface while penetrating the screw shaft portion of the P-con from the inner surface to the outer surface of the form panel. It is formed.
The groove hole is formed by inserting the tip of the tie rod into the outer surface of the formwork panel while screwing the base end of the tie rod of the formwork binding member into the screw shaft of the P-con in order to assemble or remove the formwork binding member. It is rotatably formed at the bottom of the fitting recess.

According to the invention of (1), the P-con can be fixed or removed from the inner surface of the form panel by fitting the P-con into the fitting recess of the formwork tool, while the groove of the formwork tool can be fixed or removed. By rotating the tip of the tie rod of the formwork binding member using the hole, the base end of the tie rod is screwed into the screw shaft of the P-con, and the formwork binding member is assembled to the outer surface of the formwork panel. Or it can be removed. As a result, the formwork tool can be used in common for both fixing or removing the P-con and assembling or removing the formwork binding member, so it is necessary to replace and check the formwork tool. The work related to assembling and disassembling the formwork can be easily performed.

(2) The formwork tool according to (1), wherein the fitting recesses are alternately formed in an uneven shape along the circumferential direction.

According to the invention of (2), since the outer peripheral surface of the P-con surely abuts on the portions formed in an uneven shape alternately along the circumferential direction of the conical fitting recess, the P-con and the fitting recess are formed. The contact friction force of the P-con can be increased to securely fix the P-con.

(3) The formwork tool according to (1) or (2), wherein the groove hole is formed in a cross shape.

According to the invention of (3), the tip of the tie rod of the formwork binding member can be inserted into either the horizontal groove hole or the vertical groove hole among the groove holes formed in a cross shape. The tip of the tie rod of the frame binding member can be easily inserted, and the work of rotating the tie rod and screwing the base end portion into the screw shaft portion of the P-con can be easily performed without taking time and effort.

According to the present invention, it can be used in common for both fixing the P-con and assembling the formwork binding member, and as a result, the work related to the assembly and disassembly of the formwork can be easily performed without the need for replacement and confirmation of tools. A formwork tool that can be used can be provided.

It is a perspective view which shows the application example of the formwork tool which concerns on one Embodiment of this invention. It is a perspective view which shows the whole appearance of the formwork tool which concerns on one Embodiment of this invention. It is sectional drawing which shows the vertical cross section of the formwork tool which concerns on one Embodiment of this invention. It is a bottom view which shows the bottom part of the formwork tool which concerns on one Embodiment of this invention. It is sectional drawing which shows the use example at the time of assembling the formwork of the formwork tool which concerns on one Embodiment of this invention. It is a bottom view which shows the use example at the time of assembling the formwork of the formwork tool which concerns on one Embodiment of this invention. It is sectional drawing which shows the use example at the time of assembling the formwork of the formwork tool which concerns on one Embodiment of this invention. It is a bottom view which shows the use example at the time of assembling the formwork of the formwork tool which concerns on one Embodiment of this invention. It is a bottom view which shows the separate use example of the formwork tool which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, the same or similar configurations are designated by the same reference numerals, and the description thereof will be omitted or simplified.

FIG. 1 is a perspective view showing an application example of the formwork tool 1 according to the embodiment of the present invention, FIG. 2 is a perspective view showing the entire appearance of the formwork tool 1, and FIG. 3 is a formwork tool. FIG. 4 is a cross-sectional view showing a vertical cross section of No. 1, and FIG. 4 is a bottom view showing a bottom portion of the formwork tool 1. As shown in FIG. 1, the formwork tool 1 of the present embodiment is a socket bit that is replaceably attached to the electric screwdriver main body 2, and is suitably used, for example, when assembling and disassembling a concrete formwork. It is a thing. Specifically, as will be described later with reference to FIGS. 5 to 8, the formwork tool 1 fixes or removes the P-con C to the formwork panel P and a formwork binding member (for example, a foam tie). (Registered trademark)) It can also be used for assembling or removing F. The formwork tool 1 can be rotated in either clockwise or counterclockwise direction while being attached to the electric screwdriver main body 2. However, in the following illustration, the electric screwdriver main body 2 is not shown. However, it is assumed that the formwork tool 1 is rotated by the electric screwdriver main body 2.

As shown in FIGS. 2 to 4, the formwork tool 1 includes a truncated cone-shaped socket portion 10 and a hexagonal shaft 20 that is detachably attached to the chuck portion of the electric driver main body 2. The hexagonal shaft 20 projects from the pedestal of the socket portion 10.

The socket portion 10 includes a conical fitting recess 11 formed along the outer peripheral surface (see FIG. 5) of the P-con main body C1 described later, and a tip portion F1a of the tie rod F1 of the formwork binding member F described later. (See FIG. 5) is rotatably provided with a groove hole 12 formed at the inner bottom of the fitting recess 11.

In the fitting recess 11, a plurality of convex portions 11a and recesses 11b are alternately formed at equal pitches (for example, a pitch that can be engaged with the outer shape of a hexagon bolt or a hexagon nut) along the circumferential direction. The plurality of convex portions 11a are formed so as to be substantially in line contact with the outer peripheral surface of the P-con main body C1. The plurality of recesses 11b basically do not come into contact with the outer peripheral surface of the P-con main body C1. Twelve convex portions 11a and 12 concave portions 11b are preferably formed.

As shown in FIG. 5, when the external dimensions of the P-con main body C1 are, for example, the bottom outer diameter d1 is 30 mm, the head outer diameter d2 is 24 mm, and the height h is 25 mm, the approximate external dimensions of the socket portion 10 are The outer diameter D0 of the bottom portion is 30 mm, the height H0 is 40 mm, and the approximate dimensions of the fitting recess 11 are that the maximum inner diameter D1 along the bottom opening surface of the socket portion 10 is 26 mm and the minimum fitting recess 11 is along the bottom. The inner diameter D2 is 21 mm, and the depth H1 from the opening surface at the bottom of the socket portion 10 to the bottom of the fitting recess 11 is 20 mm. Such a fitting recess 11 is used when fixing the P-con main body C1 to the inner surface of the form panel P while penetrating the screw shaft portion C2 of the P-con C from the inner surface to the outer surface of the form panel P. Be done.

The groove hole 12 is formed in a cross shape so that a pair of oblong rectangles intersect when the bottom of the fitting recess 11 is viewed from the front. The groove hole 12 is formed so that the tip end portion F1a of the tie rod F1 of the formwork binding member F can be inserted in the axial direction.

The general dimensions of the groove hole 12 are such that the length L in the longitudinal direction is 16 mm, the width W in the lateral direction is 9 mm, and the depth H2 from the bottom of the fitting recess 11 toward the hexagonal shaft 20 is 10 mm. Such a groove hole 12 is formed on the outer surface of the form panel P while screwing the base end portion F1b of the tie rod F1 of the form binding member F to the screw shaft portion C2 of the P-con C on the outer surface side of the form panel P. On the other hand, it is used when assembling the formwork binding member F.

Next, how to use the formwork tool 1 will be described with reference to the drawings. FIG. 5 is a cross-sectional view showing an example of using the formwork tool 1 when fixing the P-con C to the inner surface of the formwork panel P at the time of assembling the formwork, and FIG. 6 is a cross-sectional view of the formwork tool 1 at that time. The bottom view and FIG. 7 are cross-sectional views showing an example of using the formwork tool 1 when assembling the formwork binding member F to the outer surface of the formwork panel P at the time of assembling the formwork, and FIG. 8 shows the formwork at that time. The bottom view and FIG. 9 of the tool 1 are bottom views showing a separate usage example of the formwork tool 1 different from that at the time of assembling the formwork.

As shown in FIGS. 5 and 6, when assembling the formwork, the formwork tool 1 is used to fix the P-con C to the inner surface of the formwork panel P. At that time, the fitting recess 11 of the socket portion 10 is fitted to the P-con main body C1 on the inner surface side of the form panel P while penetrating the screw shaft portion C2 of the P-con C from the inner surface to the outer surface of the form panel P. The socket portion 10 is rotated in a predetermined direction around the hexagonal shaft 20 by operating a switch on the electric driver main body 2 (not shown).

At this time, since the maximum inner diameter D1 (26 mm) of the fitting recess 11 along the bottom opening surface of the socket portion 10 is smaller than the bottom outer diameter d1 (30 mm) of the P-con main body C1, the bottom of the P-con main body C1 is , It is exposed to the outside from the bottom opening surface of the socket portion 10. Further, the outer peripheral surface of the P-con main body C1 is substantially in line contact with the plurality of convex portions 11a of the fitting recess 11, so that the P-con main body C1 is held in a state of being engaged with the fitting recess 11. As a result, the socket portion 10 is reliably rotated without contacting the mold panel P until the bottom portion of the P-con main body C1 contacts the inner surface of the form panel P, and finally, the P-con main body C1 The P-con C is fixed to the mold panel P in a state where the bottom portion of the mold is in contact with the inner surface of the mold panel P. Further, the P-con C can be removed by rotating the mold tool 1 in the reverse direction by operating a switch of the electric screwdriver main body 2 (not shown).

Next, as shown in FIGS. 7 and 8, the base end portion F1b of the tie rod F1 of the form binding member F is screwed into the screw shaft portion C2 of the P-con C protruding from the outer surface of the form panel P. As a result, the formwork binding member F is temporarily assembled on the outer surface of the formwork panel P. The formwork binding member F is in a state in which the pipe holding member F2 and the nut F3 are temporarily assembled to the tie rod F1. The tip portion F1a of the tie rod F1 has an elongated cross section in the axial direction formed by pressing or the like. A male screw screwed into the nut F3 is formed from the tip portion F1a to the center portion of the tie rod F1. A female screw screwed into the screw shaft portion C2 of the P-con C is formed on the base end portion F1b of the tie rod F1.

When screwing the base end portion F1b of the tie rod F1 of the formwork binding member F to the screw shaft portion C2 of the formwork C, the formwork tool 1 is attached to the formwork body C1 on the inner surface side of the formwork panel P. While the fitting recess 11 of the above is fitted to fix the P-con main body C1, another formwork tool 1 is used on the outer surface side of the formwork panel P to form a groove of the other formwork tool 1. With the tip F1a of the tie rod F1 fitted in the hole 12, the socket portion 10 of the formwork tool 1 is rotated in a predetermined direction around the hexagonal shaft 20 by operating a switch on the electric driver body 2 (not shown). .. As a result, the base end portion F1b of the tie rod F1 is fastened while being screwed to the screw shaft portion C2 of the P-con C, and the formwork binding member F is temporarily attached to the outer surface of the formwork panel P in a state of being connected to the P-con C. To be assembled.

At this time, since the P-con main body C1 is held in a non-rotatable state in a state of being engaged with the fitting recess 11, the tie rod F1 of the formwork binding member F with respect to the screw shaft portion C2 of the non-rotating P-con C. It is reliably rotated by using another formwork tool 1, and the formwork binding member F is firmly fastened to the P-con C. Further, since the groove hole 12 is formed in a cross shape, the tie rod F1 with respect to the groove hole 12 can be obtained by simply turning the mold tool 1 about 45 degrees in any direction around the axis with respect to the tie rod F1. The tip portion F1a of the above can be easily fitted. Although not particularly shown, after the P-con C and the form-binding member F are fastened in this way, a pair of P-con Cs facing each other on the inner surface side of the form panel P are connected to each other with a separator. , The single pipe is held via the formwork binding member F temporarily assembled on the outer surface of the formwork panel P. Further, the formwork binding member F can be removed by rotating the formwork tool 1 in the reverse direction by operating a switch of the electric screwdriver main body 2 (not shown).

Further, as a separate use example of the formwork tool 1, as shown in FIG. 9, if the hexagon bolt B (which may be a hexagon nut) having an outer diameter that fits in the fitting recess 11, the hexagon bolt B can be used. It is also possible to use the formwork tool 1 so as to be rotated by the electric driver main body 2 in a state of being fitted into the fitting recess 11.

At that time, the corners of the hexagon bolt B are in contact with each of the six recesses 11b in the fitting recess 11, so that the hexagon bolt B is reliably rotated in a state of being engaged with the fitting recess 11. As described above, the formwork tool 1 can also be used in the work of tightening the bolts B and nuts other than when assembling the formwork.

The formwork tool 1 is used not only for the formwork assembly work and the tightening work for bolts B, but also for the formwork disassembly work when the Pcon C and the formwork binding member F are removed from the formwork panel P. Can be used.

According to such a formwork tool 1, the P-con C can be fixed to the inner surface of the form panel P by fitting the P-con main body C1 into the fitting recess 11, while the groove hole 12 is used. By rotating the tip portion F1a of the tie rod F1 of the formwork binding member F, the base end portion F1b of the tie rod F1 is screwed into the screw shaft portion C2 of the P-con C, thereby forming a mold on the outer surface of the form panel P. The frame binding member F can be temporarily assembled. As a result, the formwork tool 1 can be used in common for both fixing the P-con C and temporarily assembling the formwork binding member F, so that the formwork tool 1 does not need to be replaced or confirmed. Work related to assembling and disassembling the frame can be easily performed.

Further, since the outer peripheral surface of the P-con main body C1 surely contacts the plurality of convex portions 11a alternately formed along the circumferential direction of the conical fitting recess 11 by line contact, the P-con C and the fitting recess 11 The contact frictional force with 11 can be increased to securely fix the P-con C.

Further, since the tip portion F1a of the tie rod F1 can be easily inserted into the groove hole 12 formed in a cross shape, the tie rod F1 is rotated and the base end portion F1b is screwed into the screw shaft portion C2 of the P-con C. The work of matching can be easily performed without any trouble.

The present invention is not limited to the above embodiment.

For example, the dimensions of the fitting recess 11 and the groove hole 12 can be appropriately changed according to the dimensions and shape of the tip portion F1a of the P-con C and the tie rod F1.

1 Formwork tool 11 Fitting recess 11a Convex 11b Recess 12 Groove hole P Form panel C P Con C1 P Con body C2 Screw shaft F Form binding member F1 Tie rod F1a Tip F1b Base end

Claims (3)

A socket-shaped formwork tool capable of fastening a formwork binding member from the outer surface side of the formwork panel to a P-con arranged on the inner surface of the formwork panel.
A cone formed along the outer peripheral surface of the P-con in order to fix or remove the P-con to the inner surface while penetrating the screw shaft portion of the P-con from the inner surface to the outer surface of the form panel. Shaped fitting recess and
The tip of the tie rod can be rotated in order to assemble or remove the formwork binding member with respect to the outer surface of the formwork panel while screwing the base end portion of the tie rod of the formwork binding member to the screw shaft portion. With a groove hole formed in the bottom of the fitting recess,
A tool for formwork, characterized by having. The mold tool according to claim 1, wherein the fitting recesses are alternately formed in an uneven shape along the circumferential direction. The formwork tool according to claim 1 or 2, wherein the groove hole is formed in a cross shape.

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