JPH076352Y2 - Square bracket - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a square metal fitting for tightening a corner portion of a mold when forming a concrete wall, a concrete block or the like.

[0002]

2. Description of the Related Art For example, in order to form a concrete wall or the like, a mold is assembled according to the wall surface shape, and concrete is poured into the mold.

Conventionally, when the formwork is made of wood, in order to prevent the formwork from being displaced to the outside due to the pressure when pouring concrete, a support rod is passed along the outer surface of the formwork to support it. Further, for example, at the corners of a pair of molds that are adjacent to each other in a substantially right-angled manner, the corners are tightened so that the intersections where the ends of the supporting rods passed to each mold intersect with each other. I am trying to connect with each other.

[0004]

However, as in the prior art, at the corners of a pair of molds that are adjacent to each other in a substantially right-angled manner, a wire or the like is formed at the intersection where the ends of the supporting rods passed over the respective molds intersect. It is difficult to firmly tighten the corners of the formwork by connecting with, and the corners of the formwork open due to the pressure when the concrete is poured, causing the mold to collapse, the concrete flows out, and the worker May pose a risk to

The present invention has been made in view of the above circumstances, and an object thereof is to provide a corner fitting capable of firmly tightening the corners of a pair of enclosures that are adjacent to each other at a substantially right angle. It is a thing.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a pair of rod-shaped members disposed along each of the enclosing bodies 22 and having an end portion intersecting a corner portion 24 where a pair of enclosing bodies 22 adjoining each other at a substantially right angle intersect. Through 25,
A square metal fitting 1 that is mounted and tightened on the opposite side of the intersection 24 of the pair of rod-shaped bodies 25 from the corner 24, and is provided in the main body frame 2 and both ends of the main body frame 2 in a substantially U-shape. Each of the rods
A fitting portion 4 that is detachably fitted to the fitting member 25; locking means 8 that is detachably mounted between the tip portions of the fitting portion 4 to lock the rod-shaped body 25 in the fitting portion 4; Fastening having a screwing portion 12 provided in the center of the main body frame 2 and a screwing member 13 that is screwed into the screwing portion 12 and is capable of advancing and retracting with respect to the intersecting portion 26 of the rod-shaped body 25. And means 11.

[0007]

In the present invention, a pair of enclosures that are adjacent to each other at a substantially right angle
When tightening the corners 24 where the 22 intersect, with respect to the pair of rod-shaped bodies 25 arranged along each enclosure 22 and whose ends intersect, with the corners 24 of the intersections 26 of the pair of rod-shaped bodies 25 On the other side, attach the square fitting 1. The fitting of the square fastener 1 is carried out by fitting the fitting portions 4 at both ends of the main body frame 2 into the rod-like bodies 25, and attaching the locking means 8 to the fitting portions 4 so that the fitting portions 4 are fitted inside the fitting portion 4. The rod-shaped body 25 is locked.

A tightening means provided at the center of the body frame 2
By screwing the screwing member 13 of 11 in the tightening direction, the screwing member 13 advances toward the intersecting portion 26 of the rod-shaped body 25 and presses the intersecting portion 26. Along with this, while the space between the main body frame 2 and the intersecting portion 26 is opened, the fitting and locking position of the fitting portion 4 of each rod-shaped body 25 is integrated with the main body frame 2 that moves away from the intersecting portion 26. As the rods 25 move, the ends of the pair of adjacent enclosures 22 that are adjacent to each other at a substantially right angle are brought closer to each other integrally with the movement of each rod 25, and the corners 24 of the enclosure 22 are firmly tightened.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of one embodiment of the present invention will be described below with reference to FIGS.

FIG. 3 shows a square fastener 1, and in FIG.
Is a main body frame made of metal with a rectangular cross section.
Both end surfaces 2a of each are formed in a substantially C shape at an angle of about 45 °. Further, at the center of the main body frame 2, a through hole 3 is formed which penetrates both side surfaces orthogonal to the longitudinal direction.

Reference numeral 4 denotes a fitting portion provided on both end surfaces 2a of the main body frame 2. The fitting portion 4 is a metal frame member 5 formed in a substantially U shape, and an inner center of the frame member 5. The partition member 6 made of metal and welded to the section is formed in two upper and lower stages. The outer central portion of the frame member 5 is welded and fixed to both end faces 2a of the main body frame 2, and the fitting portions 4 at both ends are fixed to the main body frame 2.
45 ° with respect to the longitudinal direction. In addition, the inside of each fitting portion 4 is formed to have a size capable of fitting with a horizontal rod 25 described later, and the inner surface 5a of the frame member 5 has a horizontal rod 25.
It is formed, for example, in a file surface shape so that the friction coefficient at the time of joining with is high.

Further, through holes 7 are coaxially formed at both ends of the frame member 5 and at the end of the partition member 6, corresponding to the position on the outer surface of the horizontal rod 25 fitted in the fitting portion 4. Has been done.

Denoted at 8 is a locking means. The locking means 8 is formed to have a diameter capable of penetrating the through hole 7 of the fitting portion 4 and a length capable of penetrating all the through holes 7 of the fitting portion 4. Metal pin body 9
A ring 10 is attached to the upper end of the pin body 9 to prevent the pin body 9 from falling out. The ring 10 is connected to the other end of a chain (not shown) whose one end is fixed to the body frame 2 or each fitting portion 4 to prevent the pin body 9 from being lost.

Reference numeral 11 denotes a tightening means, which is composed of a nut 12 as a screwing portion and a screw shaft body 13 as a screwing member screwed to the nut 12. Nut 12
Is disposed coaxially with the through hole 3 on the side surface of the body frame 2 on which the fitting portion 4 is inclined, for example, by welding fixing or non-fixing.
The screw shaft body 13 is rotatably inserted into the through hole 3 from the side surface of the main body frame 2 opposite to the side where the nut 12 is arranged, and is screwed into the nut 12, and the screw shaft portion 14 and the screw shaft portion 14. An operating portion 15 bent in a substantially L shape is formed at the outer end of the shaft portion 14, and a substantially L-shaped metal member 16 is rotatably connected to the tip of the screw shaft portion 14.

Next, the case where the outer frame is tightened when the concrete wall is formed, for example, by using the above-mentioned square fastener 1, is shown in FIG.
The description will be made with reference to FIG.

In the figure, the formation locations outside the corners of the concrete wall (concrete wall formation portion is indicated by reference numeral 21) are shown.
Reference numeral 22 denotes a frame plate as an enclosure in which a plurality of vertical bars 23 are fixed to the outer surface, and the pair of frame plates 22 are respectively arranged according to the shape of the outer surface of the wall, and the corner portions 24 where the pair of frame plates 22 intersect are formed. Are combined at a substantially right angle.

Further, a horizontal bar 25 having a quadrangular cross section as a bar is horizontally passed over a plurality of vertical bars 23 of each frame plate 22,
At the end of the horizontal bar 25, one horizontal bar 25 is crossed on the upper side and the other horizontal bar 25 is crossed on the lower side, and the cross section has a quadrangular cross section at the inner corner portion opposite to the corner portion 24 of the crossing portion 26. A vertical bar 27 is provided.

The square metal fitting 1 is to be mounted on the side of the intersection 26 of the pair of horizontal bars 25 opposite to the corner 24, and the mounting procedure is as follows. With 9 removed and with the metal plate 16 of the screw shaft body 13 retracted to the body frame 2 side, one horizontal bar 25 crossing the upper side is fitted to the fitting portion at the upper end of one end of the body frame 2. 4 is fitted, and the fitting portion 4 at the lower end of the other end of the body frame 2 is fitted to the other horizontal bar 25 intersecting the lower side.
Further, the inner surface 5a at the back of each fitting portion 4 is joined to the horizontal bar 25 in a substantially planar manner, and is inserted into the through hole 7 from above each fitting portion 4 to penetrate the lower surface of the fitting portion 4. In this mounted state, the internal angle formed by the body frame 2 and each horizontal bar 25 is approximately 45 °.

Then, by rotating the screw shaft body 13 in the tightening direction, the tip of the screw shaft body 13 advances from the main body frame 2 toward the vertical bar 27, and the substantially L-shaped dowel 16 is formed. By abuttingly fitting the corners of the vertical bar 27 and further continuing the rotating operation, the space between the main body frame 2 and the vertical bar 27 becomes wider, and accordingly, the pins of each fitting part 4 The body 9 is pressed against the horizontal rod 25, and the frictional resistance due to the pressure contact between the pin body 9 and the horizontal rod 25 causes the fitting portions 4 and the horizontal rod 25 to be firmly fixed to each other.

Further, by rotating the screw shaft body 13, the gap between the main body frame 2 and the vertical bar 27 is further increased, and the main body frame 2 which is separated from the vertical bar 27 outward is integrally formed. Each horizontal bar
As 25 is pulled outward, the vertical bar 27 is relatively pressed against the intersection 26 of the horizontal bar 25, and the upper horizontal bar is accordingly pressed.
A force in the counterclockwise direction in FIG. 1 acts on 25 as the center of contact with the vertical bar 27, and a vertical bar 27 is applied to the lower horizontal bar 25.
The force in the clockwise direction in FIG. 1 acts on the contact point with the center, and the pair of adjacent frame plates 22 are brought toward the corners 24 via the respective horizontal bars 25, and the corners of the pair of frame plates 22 are moved. The part 24 is firmly tightened.

Therefore, even if concrete is poured between the insides of the frame plate 22, it is possible to prevent the corners 24 of the frame plate 22 from losing their shape, preventing the concrete from flowing out, and further improving the safety and efficiency of the worker. .

Further, after the concrete wall is formed, the tightening of the screw shaft body 13 is loosened, and the pin body 9 is pulled out from each fitting portion 4, so that the square fastener 1 can be easily removed.

Since the square fastener 1 is provided with the upper and lower two stages of the fitting portions 4 at both ends of the body frame 2, it can be attached regardless of the vertical crossing state of the pair of horizontal bars 25. Yes,
That is, when the vertical crossing of the horizontal bar 25 is opposite to the above case, the one horizontal bar 25 crossing the lower side is fitted with the fitting portion 4 at the lower end of one end of the main body frame 2 and the upper crossing is performed. The other horizontal rod 25 is fitted with the fitting portion 4 on the other end of the main body frame 2.

Next, the case where the inner frame is tightened when the concrete wall is formed, for example, by using the above-mentioned square fastener 1, is shown in FIG.
Will be described with reference to.

The figure shows a forming location inside a corner of a concrete wall (concrete wall forming portion is indicated by reference numeral 21), and the pair of frame plates 22 are respectively arranged in accordance with the inner surface shape of the wall to form a pair. The corners 24 where the frame plates 22 intersect are combined at a substantially right angle. The vertical bar 23a is fixed to one frame plate 22 (horizontal horizontal direction in the drawing), and the vertical bar 23b is fixed to the other frame plate 22 (vertical vertical direction in the drawing).

A horizontal bar 25 is fixed horizontally across a plurality of vertical bars 23 of each frame plate 22, one horizontal bar 25 being at the end of the horizontal bar 25 and the other horizontal bar 25 being the lower side. Are crossed to the upper side, and a vertical bar 27 is arranged at an inner corner portion of the crossing portion 26 opposite to the corner portion 24.

Also in this case, as in the above-described embodiment, the corner fastener 1 is mounted on the opposite side of the corner 24 of the intersection 26 of the pair of horizontal bars 25. It should be noted that one of the horizontal bars 25 intersecting the lower side is fitted with the fitting portion 4 at one end of the main body frame 2, and the other horizontal bar 25 intersecting the upper side is fitted with the main frame 2. The fitting portion 4 on the upper side of the other end is fitted.

By rotating the screw shaft body 13 in the tightening direction, the tip of the screw shaft body 13 advances from the main body frame 2 toward the vertical rod 27, and the substantially L-shaped dowel 16 is formed. Abut on the corners of the vertical bar 27, the space between the main body frame 2 and the vertical bar 27 is opened,
The pin body 9 of each fitting portion 4 is pressed against the horizontal rod 25. Further, while the space between the main body frame 2 and the vertical bar 27 is widened, each fitting portion 4 of each horizontal bar 25 is integrated with the main body frame 2 that moves inward with respect to the vertical bar 27.
Of the frame plate 22 is pulled inward, the frame plates 22 are pulled inward through the vertical bars 23 integrally with the movement of the horizontal bars 25, and the end portions of the frame plates 22 are The corner portions 24 of the frame plate 22 are firmly tightened by being brought closer to each other toward the intersecting portion 26.

FIG. 5 shows a state in which the concrete wall is formed by pouring concrete 41 into the concrete wall forming portion 21 by the outer frame and the inner frame as described above.

Next, FIG. 6 and FIG. 7 show another embodiment of the square fastening member 1. In this embodiment, the main body frame 2 is obliquely arranged, and both ends of the main body frame 2 are provided with apex angles. An isosceles triangle-shaped horizontal portion 31 having an angle of about 90 ° is provided, and the fitting portions 4 are welded and fixed to respective end portions 32 of the two sides of the horizontal portion 31. Each fitting portion 4 is formed in a substantially U shape having a through hole 7 and is a frame member 33.
And is oriented at 45 ° with respect to the longitudinal direction of the body frame 2. The locking means 8 and the tightening means 11
Although omitted, the configuration is similar to that of the above embodiment.

The square fastener 1 selectively uses the fitting portions 4 at one end of the main body frame 2 or the fitting portions 4 at both ends of the main body frame 2, and the upper and lower portions of the pair of horizontal bars 25 are arranged vertically. The one side or the other side of the main body frame 2 is inverted and used according to the crossing state of.

Further, in this embodiment, since the side surface of the main body frame 2 is used by being turned over, the tightening means 11 can be tightened from either side of the main body frame 2 or the main body frame 2 can be tightened.
The structure is such that it can be detached and the direction of the tightening operation can be reversed.

As still another embodiment, a structure similar to that of the square fastening 1 shown in the embodiments of FIGS. 5 and 6 is divided into one side and the other side at the center along the longitudinal direction. Alternatively, a dedicated structure may be used when one horizontal bar 25 intersects on the upper side and when the other horizontal bar 25 intersects on the upper side.

The tightening means 11 is not limited to the above-mentioned embodiment, but instead of the nut 12, for example, a boss may be integrally formed on the main body frame 2 and an internal thread may be formed inside the boss.

Further, the locking means 8 is not limited to the above-mentioned embodiment, but may be any structure which is attachable to and detachable from the distal end portion of the fitting portion 4 so that the horizontal rod 25 can be locked in the fitting portion 4.

[0036]

According to the present invention, the corners where a pair of substantially right-angled adjacent enclosures intersect each other are formed through a pair of rod-shaped bodies disposed along the respective enclosures and whose ends intersect each other. It is possible to provide an angle fastening metal fitting that is mounted and tightened on the side opposite to the corner of the intersection of the rod-shaped body, and the corner of the enclosure can be firmly tightened.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a square metal fitting of the present invention when an outer frame is tightened.

FIG. 2 is a side view thereof.

FIG. 3 is a perspective view of the corner fastener.

FIG. 4 is a plan view when the inner frame is tightened.

FIG. 5 is a plan view showing a state where the concrete wall is formed.

FIG. 6 is a plan view showing another embodiment of the square fastener of the present invention.

FIG. 7 is a side view thereof.

[Explanation of symbols]

 1 square fastening metal fitting 2 main frame 4 fitting part 8 locking means 11 tightening means 12 screwing part 13 screwing member 22 frame plate as an enclosure 24 corner part 25 horizontal bar as a bar 26 crossing part

Claims (1)

[Scope of utility model registration request] 1. An intersecting portion of a pair of rod-shaped bodies, with a pair of rod-shaped bodies arranged along each of the enclosed bodies and having ends intersecting each other at a corner where a pair of substantially right-angled adjacent enclosures intersect with each other. Is a square metal fitting that is mounted and tightened on the side opposite to the corner portion of the main body frame, and is fitted in a substantially U shape at both ends of the main body frame and is detachably fitted to each rod-shaped body. And a locking means that is removably mounted between the tip parts of the fitting part to lock the rod-shaped body in the fitting part, and a screwing part provided in the central part of the main body frame,
A fastening means having a screwing member which is screwed into the screwing portion and is capable of advancing and retreating with respect to the intersection of the rod-shaped bodies.