JPH0860863A - Fixing-member hole forming device of form auxiliary tool - Google Patents

Abstract

PURPOSE: To improve the efficiency of the execution of works in forms by slantingly boring a fixing-member hole accurately to an outer circumferential surface near to the end section of a form auxiliary tool cut in joining length in forms simply and efficiently conducting boring operation even by an amateur. CONSTITUTION: First and second handle levers 14a, 14b pivotally attached in an approximately X shape are provided, and a fitting section 18 detachably fitted at the end section of a form auxiliary tool is mounted on the end section side of the first handle lever 14a. A hole forming mechanism 22 boring a fixing- member hole to the form auxiliary tool while performing the closing and contracting operation of the handle levers under the state that the fitting section of the first handle lever 14a is fitted at the end section of the form auxiliary tool, is installed to the first and second handle levers 14a, 14b. The end section of the form auxiliary tool is fitted into the fitting section 18, and the first and second handle levers 14a, 14b are closed and contracted and the fixing- member hole can be bored simply by the hole forming mechanism 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing member hole forming device for a mold auxiliary tool for forming holes for fixing members such as nails in a mold auxiliary tool for molding various piping holes in a mold. is there.

[0002]

2. Description of the Related Art Conventionally, at the stage of construction, construction of concrete structures for civil engineering, and other construction, water pipes for water supply and drainage, air conditioning ducts, electric power,
Various types of holes for pipes such as telephone line pipes are formed. When forming these various piping holes, insert a formwork auxiliary tool that cuts a paper tube of an arbitrary diameter into a predetermined length into a formwork that is assembled and has a reinforcing bar frame etc. Both ends are joined to the formwork surface, and nails are driven into the formwork from the outer peripheral surface of the end of the formwork aid so that the formwork aid does not move when concrete is placed in the formwork. . However, from the outer peripheral surface of the end of the form aid made of paper tube to the form 2 to 4
When driving and locking about a number of nails, insert your hand into the narrow gap of the reinforcing bar cage arranged in the formwork, and from the smooth outer peripheral surface of the formwork aid to the formwork. The tip of the nail was slippery when driving the direction nail diagonally, the driving direction and the driving angle were not fixed, the work was difficult, the quick locking work was not possible, and the positioning accuracy was poor. .

Therefore, the Applicant has proposed that a plurality of locking holes are formed on the outer peripheral surface of a frame auxiliary tool made of a paper tube and having an arbitrary diameter length, in which nail driving holes are continuously opened along the longitudinal direction thereof. A row is provided, and while the formwork auxiliary tool is cut to a predetermined length and joined to the inner surface of the formwork, while engaging the tip of the nail in the hole on the outer peripheral surface near the end of the formwork auxiliary tool, Practical application of formwork aids for construction, civil engineering formwork, etc. that can perform nailing work quickly without the tip of nails slipping, and can properly fix formwork aids at predetermined positions on the formwork surface. Proposed in No. 78073.

[0004]

However, in the formwork assisting tool described above, in order to open a plurality of locking hole rows on the outer peripheral surface, it is often necessary to form holes in an inclined shape. Therefore, it is difficult to perform the hole drilling work at an accurate and reliable position, and since it requires skill, the manufacturing cost is high, and the work time is long and inefficient. there were.

The present invention has been made in view of the above-mentioned problems of the prior art, and its object is to provide an outer peripheral surface near the end of a mold auxiliary tool cut to a length to be joined into the mold at a work site. ,
Forming aids to formwork can be used to accurately and easily open holes for fastening members, such as nails, and to open holes for fastening members efficiently and even at low cost, even at low cost. It is an object of the present invention to provide a stop member hole forming device for a formwork assisting tool that can appropriately fix the above.

[0006]

In order to achieve the above object, the invention according to claim 1 has first and second handle rods 14a and 14b pivotally mounted in a substantially X shape. A fitting portion 18 that is detachably fitted to the end portion of the form aid 16 is provided on the end side of the first handle rod 14a, and further, the first and second handle rods 14a and 14b include With the fitting portion 18 of the first handle bar 14a fitted to the end of the formwork assisting tool 16, a closing member hole 20 is opened in the formwork assisting tool 16 while closing and retracting the handlebar. The hole forming mechanism 22 is provided to form the stopper member hole forming device 10a of the formwork auxiliary tool.

In the invention according to claim 2, the fitting portion 18 comprises beak-shaped first and second sandwiching plates 24a and 24b, and these sandwiching plates 24a and 24b are in communication with each other. Guide holes 26, 26 are formed in the guide holes 26, 26, and a puncture member 28 is pivotally attached to the end of the fitting portion 18 of the second handle rod 14b so as to be movable back and forth in the guide holes 26, 26. The hole forming mechanism 22 may include the fitting portion 18, the guide holes 26, 26, and the puncture member 28.

In the invention according to claim 3, the formwork assisting tool 16 is a thin plate member, and the guide hole 26,
26 may be provided so as to penetrate the formwork assisting tool 16 in an oblique direction.

Further, in the invention according to claim 4, the second
The puncturing member 28 provided on the handle bar 14b has a lever-shaped end portion of the second handle bar 14b with the X-shaped pivot 12 as a fulcrum when the second handle bar 14b is closed and retracted. It may be pivotally attached so as to move.

In the invention according to claim 5, the puncture member 28 may be a needle rod 30.

In the invention according to claim 6, the elastic member 32 is provided in the gap between the first and second handle bars 14a and 14b.
May be suspended.

Next, in the invention according to claim 7, the first and second handle rods 14a and 14b pivotally attached in a substantially X-shape, and the end side of the first and second handle rods 14a and 14b. First and second contact plates 42 that are connected to each other and clamp the end of the formwork assisting tool 16 therebetween.
a and 42b, the first contact plate 42a and the second contact plate 42b are configured to press the mold auxiliary tool 16 against the plate surfaces to open the inclined stop groove 44. 46 and a receiving hole 48 that fits into the protrusion 46, and is provided with a stopper member hole forming device 10b for a formwork auxiliary tool.

In the invention according to claim 8, the first and second contact plates 42a, 42b may be long plates.

Further, in the invention according to claim 9, the protrusion 46 is formed in a long triangular tooth profile 50 facing the end of the long plate in the longitudinal direction, and the receiving hole 48 is formed in the long triangular tooth profile 5.
It may be formed in the long triangular hole 52 fitted with 0.

In the invention according to claim 10, the elastic member 32 is provided in the gap between the first and second handle bars 42a and 42b.
May be stretched.

[0016]

In the device for forming a stop member hole for a first formwork assisting tool according to the present invention, a stop member hole such as a nail is formed at both ends of the formwork assisting tool cut so that it can be joined at a predetermined position in the formwork. In order to form, the fitting portion of the first handle rod is fitted to the end portion of the form aid, and the first and second handle rods are closed and retracted. As a result, the puncture member of the hole forming mechanism pivotally attached to the second handle rod penetrates the formwork assisting tool obliquely through the guide hole of the fitting portion and penetrates.
When the closing operation of the first and second handle bars is released, the first and second handle bars are released.
The handle rod is moved back to the original position by the restoring elasticity of the elastic member stretched inside. With one opening / closing operation of the first and second handle bars, one stop member hole is formed obliquely toward the end on the outer peripheral surface of the formwork auxiliary tool, and two to four stop member holes are moved toward the end. The hole is formed on the outer peripheral surface of the nail, and when the nail tip is engaged and driven into the stopper hole, the nail tip does not slip on the surface of the tubular formwork auxiliary tool, By inserting a hand, the formwork auxiliary tool can be fixed in the formwork promptly and accurately. Then, by using the stopper member hole forming device, the stopper member holes such as nails can be accurately and easily opened on the outer peripheral surface near the end of the formwork assisting tool toward the end, so that even an amateur can be sure and efficient. The cost can be saved while improving the construction efficiency by opening holes.

Further, in the device for forming a stop member hole of the second formwork assisting tool according to the present invention, an abutting plate having a projection is provided at the end of the formwork assisting tool after cutting. The first and second contact plates are arranged on the inner and outer surfaces on the end side of the mold auxiliary tool so as to contact the outer surface of the first and second gripping levers, respectively.
As a result, while the outer peripheral surface of the formwork assisting tool is being pressed by the substantially long triangular tooth-shaped projection, the stop groove that is inclined toward the end side of the formwork assisting tool is opened. By opening and closing the first and second handle rods, two to four stop grooves are opened at the end of the formwork auxiliary tool, and nails are driven by using these stop grooves as stop member holes. Without the tip of the nail slipping on the surface of the tubular form aid, the hand can be inserted through the narrow gap in the form to quickly and accurately fix the form aid in the form. Therefore, by using the second stopper member hole forming device, the stopper member holes such as nails can be accurately and easily opened in an inclined shape on the outer peripheral surface of the formwork auxiliary tool near the end portion, and even an amateur can be sure and efficient. The holes can be opened and the work efficiency can be improved.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1, 2, and 3, a stopper member hole forming device for a first formwork assisting tool according to an embodiment of the present invention (hereinafter, referred to as a first embodiment).
A stopper member hole forming device) 10a is shown.
As is clear from the figure, the first stopper member hole forming device 10a
Is made of metal and is pivotally attached 12 in a substantially X shape.
The second handle rods 14a and 14b are provided, and the first handle rod 12 is provided.
A fitting portion 18 that is removably fitted to the end portion of the form aid 16 is provided on the end portion side of a.

As shown in FIG. 3, the first and second handle bars 14 are provided.
The second handle rod 14a and 14b are fitted with the fitting portion 18 of the first handle rod 14a at the end of the formwork auxiliary tool 16.
While performing the closing and contracting operation of b,
A hole forming mechanism 22 for opening 0 is provided.

The first and second handle rods 14a and 14b are formed in the shape of ordinary handle rods such as pliers or pliers.
In the upper part, the fitting portion 18 is provided on the upper end side of the pivot 12 of the first handle bar 14a on the left side. In addition, the handle bar 14
In FIG. 1, the left side is the first handle bar 14a and the right side is the second handle bar 14b. However, the present invention is not limited to this, and one is the first handle bar and the other is the second handle bar. It may be used as a handle rod. As shown in FIG. 1, the fitting portion 18 is a beak-shaped first and second sandwiching attachment projecting from the upper end of the first handle bar 14a to a position above the pivot 12 with a substantially horizontal gap. Board 24
a, 24b. The first and second sandwiching plates 24a, 2
Guide holes 26, 26 are formed in 4b so as to obliquely penetrate from the central position of the lower surface of the lower first sandwiching plate 24a to the upper surface position of the upper second sandwiching plate 24b near the base. Has been done.

A puncture member 28 that can freely move back and forth into the guide holes 26, 26 of the first and second clamping plates 24a, 24b is pivotally attached to the end portion side of the second handle rod 14b. The puncture member 28 provided on the second handle rod 14b is
When the handle bar 14b is closed and contracted toward the first handle bar 14a, the end side of the second handle bar 14b is pivotally mounted so as to move in a lever-like manner with the X-shaped pivot 12 as a fulcrum. ing. By the lever action of the second handle rod, the puncture member 28 can be easily penetrated into the formwork assisting tool 16 to open the stop member hole.

In the embodiment, the hole forming mechanism 22 is
The fitting portion 18, the guide holes 26, 26, and the puncture member 28 are included. The puncture member 28 is, for example,
The needle bar 30 is elongated and has a pointed tip, and the tip of the needle bar 30 is a lower first pinching plate 24 in a normal state.
It is engaged in the guide hole 26 of a. This puncture member 2
8 is not limited to the needle bar 30, and a rod, a punch or the like having an acute-angled portion at its tip may be used.

As a result, for example, in a state where the first sandwiching plate 24a is sandwiched on the outer surface side and the second sandwiching plate 24b is sandwiched on the inner surface side of the end portion of the form aid 16 made of a paper tube. When the second handle rod 14b is closed and retracted in the direction of the arrow in FIGS. 1 and 3,
The needle bar 30 obliquely penetrates from the guide hole 26 of the first sandwiching plate 24a to the end side of the formwork assisting tool 16 and fits into the guide hole 26 of the second sandwiching plate 24b to form the formwork assisting tool 16 Stop member hole 2
0 can be opened easily and accurately. The mold frame auxiliary tool 16 can be appropriately fixed while driving the tip of a nail or the like into the locking member hole 20 and driving it into the bonded frame.

The formwork assisting tool 16 is formed, for example, by winding an elongated paperboard such as a chip ball in a spiral shape to form a tubular shape.
It is made of a paper tube whose outer peripheral surface is covered with decorative paper, and has a thickness of about 4 mm, an outer diameter of 5 to 17 cm, and a length of about 400 cm, and is formed in a shape that can be carried to the site. The formwork auxiliary tool 16 is cut into a length that can be fitted in the assembled formwork, and the first and second holding plates 24a and 24b of the fitting portion 18 are held between both ends of the cut form. By closing and contracting the two-handle bar 14b, the stopper member hole 20 inclined toward the end portion from the outer surface to the inner surface of the end portion of the formwork auxiliary tool 16 can be opened. In addition,
The formwork assisting tool 16 is not limited to a tubular paper tube and may be a flat cardboard plate. A stopper member hole 20 can be easily opened at the end face of this cardboard plate and nailed to the formwork. May be

At an intermediate position between the first and second handle bars 14a and 14b, an elastic member 32 is stretched, as shown in FIG. As the elastic member 32, a coil spring, a bamboo spring, or the like is used. As a result, the first and second handle rods 14
With a and 14b, the opening / closing operation can be smoothly and continuously performed.

Next, the operation of the first stopper member hole forming device 10a according to the present invention will be described. As shown in FIG. 5, for example,
A form 38 made of a veneer or the like assembled to form concrete in order to form various pipe holes in the beam 36 or the like placed on the lower surface of the ceiling slab 34, Cut so that it can be joined in place in 38. Further, in order to form holes for nailing at both ends of the cut form aid 16, the first stopper member hole forming device 10
As shown in FIG. 3, the fitting part 18 of a is joined to the outer surface of the formwork assisting tool 16 by the first sandwiching plate 24a, and the inner surface of the formwork assisting tool 16 is joined by the second sandwiching plate 24b. 1, the second handle rod 14a,
14b is closed and contracted.

As a result, the needle bar 30 of the hole forming mechanism 22 penetrates from the guide hole 26 of the first sandwiching plate 24a through the formwork auxiliary tool 16 and penetrates into the guide hole 26 of the second sandwiching plate 24b.
When the closing and contracting operation of the first and second handle bars 14a, 14b is released, the restoring elasticity of the elastic member 32 that has been compressed causes the first and second handle bars 14a, 14b to automatically open to cause the needle bar 3 to move.
In 0, the tip is retracted again into the guide hole 26 of the first sandwiching plate 24a.

One opening / closing operation of the first and second handle rods 14a, 14b forms one stop member hole 20 on the outer peripheral surface of the end of the formwork assisting tool 16, and two to four stop member holes. By opening 20 on the outer peripheral surface near the end, as shown in FIG. 4, the nail 40 whose tip is locked in the stop member hole 20 has a tubular form assisting the tip of the nail 40 at the time of driving. Fixing the mold holder 16 in the molds 38, 38 promptly and accurately by inserting a hand from a narrow gap such as a reinforcing bar arranged in the molds 38, 38 without slipping on the surface of the mold 16. It will be possible. Then, by using the first stopper member hole forming device 10a, a stopper member hole 20 such as a nail can be accurately formed in an inclined shape on the outer peripheral surface near the end of the formwork auxiliary tool 16 toward the end. With the simple operation of opening and closing the first and second handle bars 14a and 14b, even an amateur can efficiently open the stop member hole, and can properly fix the form holder in the form.

Next, FIGS. 6 to 9 show a second stopper member hole forming device 10b according to an embodiment of the present invention.
As is apparent from the figure, the second stopper member hole forming device 10b
Is made of metal and is pivotally attached 12 in a substantially X shape.
The second handle rods 14a and 14b and the first and second handle rods 1
Long plate-shaped first and second abutment plates 42a, 42b which are continuously provided on the end side of 4a, 14b and which sandwich the end of the formwork assisting tool 16 therebetween.
It has and.

Similar to the first stopper member hole forming device 10a, the first and second handle bars 14a and 14b are formed in the shape of a handle bar such as ordinary pliers or pliers, and are substantially the same members. Therefore, the same numbers are attached. The first and second abutment plates 42a, 42b are pressed against the formwork assisting tool 16 on their plate surfaces, and a stop groove 44 inclined toward the end side of the formwork assisting tool 16 as shown in FIG. One of a projection 46 that opens the groove and a receiving hole 48 that fits into the projection 46 is provided.

In the embodiment, the protrusion 46 is the first
A long triangular toothed shape that is provided on the plate surface of the first contact plate 42a that is connected to the handle bar 14a and that is joined to the second contact plate 42b, and that faces the distal end portion in the longitudinal direction of the first contact plate 42a. 50 is formed. Further, the receiving hole 48 is formed by the second handle rod 14
A second abutment plate 42b that is continuous with b is opened, and a long triangular hole 52 that fits into the protrusion 46 of the long triangular tooth profile 50 of the first abutment plate 42a is formed.

As a result, the protrusion 46 of the long triangular tooth profile 50 is formed.
The first and second so that they are located on the outer surface side of the formwork assisting tool 16.
When the abutment plates 42a and 42b sandwich the end portion side of the formwork assisting tool 16 and the first and second handle bars 14a and 14b are closed and contracted, the projection 46 is placed on the outer surface of the formwork assisting tool 16. The portion that is inserted and is pressed by the protrusion 46 of the form aid 16 at this time is the receiving hole 48 of the second contact plate 42b that is joined to the inner surface side.
The stopper groove 44 is formed in the outer peripheral surface of the formwork assisting tool 16 by inserting the stopper groove 20 into the stopper member hole 20.
Can be opened very simply and efficiently.

Next, the operation of the second stopper member hole forming device 10b according to the present invention will be described. After cutting to a length such that the formwork assisting tool 16 can be joined into the assembled formwork 38, 38, as shown in FIG. The first and second abutment plates 42a, 42b are arranged on the inner and outer surfaces of the end part side of the formwork auxiliary tool 16 so as to be located on the outer surface of the tool 16, and the first and second handle bars 14a, 14b are closed and contracted. The projecting body 46 in the shape of a long triangular tooth 50 is operated.
While the outer peripheral surface of the formwork assisting tool 16 is being pressed, the stop groove 44 that is inclined toward the end portion side of the formwork assisting tool 16 is opened.

When the first and second handle rods 14a and 14b are opened and closed, two to four stop grooves 4 are formed at the end of the formwork auxiliary tool 16.
4 is provided, and the nail 40 is driven as shown in FIG. 12 by using this stop groove 44 as the stop member hole 20, and the tip of the nail 40 slides on the surface of the tubular form aid 16 at the time of driving. Instead, the hand can be inserted through a narrow gap in the mold to quickly and accurately fix the mold auxiliary tool 16 in the mold.

Also in the second stopper member hole forming device 10b, the stopper member holes 20 such as nails can be formed on the outer peripheral surface of the formwork assisting tool 16 near the end portion very easily, and the formwork assisting tool 16 can be formed.
A hole 20 for a fixing member such as a nail can be accurately formed in an inclined shape on the outer peripheral surface of the first and second handle bars 14a, 14b.
Even a layman can efficiently open the stop member hole by a simple operation of opening and closing, and the form holder can be appropriately fixed in the form.

[0036]

As described above, according to the stopper member hole forming device for the formwork assisting tool according to the first aspect, the first and second handle bars pivotally attached in a substantially X-shape, A fitting portion that is detachably fitted to the end portion of the form aid is provided on the end portion side of the first handle rod, and the first and second handle rods further include the first handle rod. With the fitting part of is fitted to the end of the formwork auxiliary tool,
A tubular formwork cut to a length to be joined into the formwork at a work site by providing a hole forming mechanism for opening a stop member hole in the formwork auxiliary tool while closing and retracting the handle rod. While fitting the fitting portion on the outer peripheral surface of the assisting tool near the end portion and opening and closing the first and second handle rods, the fixing member holes such as nails can be accurately and surely opened in an inclined shape, even by an amateur. The holes can be efficiently opened without requiring skill, and the work efficiency in the formwork can be improved.

According to a second aspect, the fitting portion is
It is composed of first and second bevel-shaped sandwiching plates, and guide holes are formed in these sandwiching plates so as to communicate with each other, and the guide holes are moved forward and backward in the guide holes at the end side of the second handle rod. The puncture member is pivotally attached as desired, and the hole forming mechanism includes the fitting portion, the guide hole, and the puncture member, so that the end portion of the formwork auxiliary portion is sandwiched between the first and second fitting portions. It is possible to accurately guide the puncture member through the guide hole of the sandwiching plate while stably sandwiching the rod, and to obliquely and accurately open the stopper member hole.

According to a third aspect, the formwork assisting tool is a thin plate-like member, and the guide hole is provided so as to penetrate the formwork assisting tool in an oblique direction. The stopper member hole can be opened while penetrating the puncture member in an oblique direction from the outer peripheral surface of the frame auxiliary tool toward the end.

According to a fourth aspect of the present invention, the puncture member provided on the second handle rod has a lever shape with the X-shaped pivot portion as a fulcrum when the second handle rod is closed and retracted. Since the end portion side of the second handle rod is pivotally attached to the second handle rod, the puncture member can easily penetrate the formwork assisting tool by the lever action of the second handle rod.

Further, according to the fifth aspect, since the puncture member is a needle bar, it is possible to easily penetrate the formwork auxiliary tool made of a paper tube to open the stop member hole.

Further, according to claim 6, the first and second
Since the elastic member is stretched over the gap of the handle bar, the elastic member is compressed during the closing and contracting operation of the first and second handle bars, and the return elasticity of the elastic member makes the first and second handle bars easy. The opening operation can be smoothly performed to open and close the first and second handle bars.

Next, according to the stopper member hole forming device of the mold auxiliary tool according to the seventh aspect, the first and second handle rods pivotally attached in a substantially X shape, and the first and second handles. It is provided with first and second contact plates that are connected to the end of the rod and sandwich the end of the formwork auxiliary tool. The first contact plate and the second contact plate have Since the plate surface is provided with any one of a projection body that presses the formwork assisting tool to open the inclined stop groove and a receiving hole that fits with the projection body, (2) Abutment plates are brought into contact with the inner and outer surfaces of the end of the tubular form aid to open and close the first and second handle rods to form fixing member holes such as nails on the outer peripheral surface of the end of the form aid. Accurate and reliable opening can be performed in an inclined shape, and even an amateur can efficiently perform opening without requiring skill, and construction efficiency in the formwork can be improved.

According to claim 8, the first and second
Since the contact plates 42a and 42b are long plates, the end portions of the tubular form aid having a small diameter can be attached to the first and second contact plates 4a and 4b.
The stopper member hole can be opened while being easily sandwiched by 2a and 42b.

According to a ninth aspect, the protrusion is
A long triangular tooth-shaped projection is formed by forming the long triangular toothed shape facing the end portion in the longitudinal direction of the long plate, and forming the receiving hole in the long triangular toothed shape fitted with the long triangular toothed shape. By pressing the outer peripheral surface of the tubular form aid, the stop groove-shaped stop member hole can be easily opened.

According to the tenth aspect of the invention, the elastic member is stretched in the gap between the first and second handle rods so that the elastic force is exerted during the closing and contracting operation of the first and second handle rods. The member is compressed, and the restoring elasticity of the member allows the first and second handle bars to be easily opened to smoothly open and close the first and second handle bars.

[Brief description of drawings]

FIG. 1 is a front view of a stop hole forming device of a first formwork auxiliary tool according to the present invention.

FIG. 2 is a front view of a stop hole forming device of the first formwork assisting tool shown in FIG.

FIG. 3 is a perspective view showing a state in which a stopper hole forming device of the first formwork auxiliary tool is attached to the outer peripheral surface of the end of the tubular formwork auxiliary tool to open a stop member hole.

FIG. 4 is a perspective explanatory view showing a state in which a nail is locked in a stopper member hole of the formwork auxiliary tool.

FIG. 5 is a cross-sectional view showing a state in which formwork auxiliary tools are arranged by nailing in a formwork under construction of a beam connected to a ceiling slab.

FIG. 6 is a front view of a stop hole forming device of a second formwork assisting tool according to the present invention.

FIG. 7 is a plan view of a stop hole forming device of the second formwork auxiliary tool shown in FIG.

FIG. 8 is a bottom view of the stop hole forming device of the second formwork assisting tool shown in FIG.

FIG. 9 is a first and second stop hole forming device for a second formwork auxiliary tool.
It is a front view showing the state where the handle bar was opened.

FIG. 10 is a perspective view showing a state in which the first and second contact plates of the stop hole forming device of the second formwork assisting tool are inserted into the ends of the formwork assisting tool.

FIG. 11 is a partial cross-sectional view showing a state in which the formwork assisting tool is sandwiched between the first and second contact plates.

FIG. 12 is a partially enlarged perspective view of the formwork assisting tool showing the stop member holes opened by the stop hole forming device of the second formwork assisting tool.

[Description of sign]

 10a Stop hole forming device for first formwork auxiliary tool 10b Stop hole forming device for second formwork auxiliary tool 12 Pivot attachment 14a First handle bar 14b Second handle bar 16 Formwork auxiliary tool 18 Fitting part 20 Stop member hole 22 hole forming mechanism 24a first sandwiching plate 24b second sandwiching plate 26 guide hole 28 puncturing member 30 beam rod 32 elastic member 42a first contact plate 42b second contact plate 44 stop groove 46 protrusion 48 receiving hole 50 Long triangular tooth shape 52 Long triangular hole

Claims (10)

[Claims] 1. A first and a second handle rod pivotally attached in a substantially X shape, and an end of the first handle rod is detachably fitted to an end of a formwork auxiliary tool. And a closing portion of the handle rod in the state where the fitting portion of the first handle rod is fitted to the end of the formwork auxiliary tool on the first and second handle rods. A stop member hole forming device for a formwork auxiliary tool, which is provided with a hole forming mechanism for opening a stop member hole in the formwork auxiliary tool while operating. 2. The fitting portion is composed of first and second bevel-shaped sandwiching plates, and guide holes are formed in these sandwiching plates so as to communicate with each other, and the end of the second handle rod is formed. 2. A mold according to claim 1, wherein a puncture member is pivotally attached to the part side so as to be movable back and forth in the guide hole, and the hole forming mechanism includes the fitting part, the guide hole and the puncture member. Device for forming a hole for a stop member of a frame auxiliary tool. 3. The formwork auxiliary tool is a thin plate-shaped member,
The stopper member hole forming device of the mold auxiliary tool according to claim 1 or 2, wherein the guide hole is provided so as to penetrate the mold auxiliary tool in an oblique direction. 4. The puncture member provided on the second handle rod is formed into a lever-like shape with the X-shaped pivot portion as a fulcrum when the second handle rod is closed and retracted. The apparatus for forming a hole for a stop member of a formwork auxiliary tool according to claim 2, wherein the end side is pivotally attached so as to move. 5. The stopper member hole forming device for a formwork auxiliary tool according to claim 2, wherein the puncture member is a needle bar. 6. The device for forming a stop member for a mold auxiliary tool according to claim 1, 2 or 4, wherein an elastic member is stretched over the gap between the first and second handle bars. 7. The first and second handle rods pivotally attached to each other in a substantially X shape and the end portions of the first and second handle rods, which are connected to each other and clamp the end portions of the formwork assisting tool. First and second abutting plates, wherein the first abutting plate and the second abutting plate are pressed against the formwork assisting tool on their plate surfaces to form inclined stop grooves. A stopper member hole forming device for a formwork auxiliary tool, which is provided with any one of a protrusion to be made and a receiving hole to be fitted into the protrusion. 8. The stopper member hole forming device for a formwork auxiliary tool according to claim 7, wherein the first and second contact plates are long plates. 9. The projection is formed in a long triangular tooth shape facing the end portion in the longitudinal direction of the long plate, and the receiving hole is formed in a long triangular hole fitted with the long triangular tooth shape. 9. A stopper member hole forming device for a formwork auxiliary tool according to claim 7 or 8. 10. The apparatus for forming a stop member hole for a form assistant tool according to claim 1, wherein an elastic member is stretched over the gap between the first and second handle bars.