JP2541777B2 - Insert body mounting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert body attaching device, and more particularly to a device for attaching an insert body embedded in a concrete product to a molding bottom plate.

[0002]

2. Description of the Related Art Conventionally, as an insert body attaching device of this type, for example, an insert body is arranged on an insertion hole of a molded bottom plate, and the insertion hole is inserted from below the molded bottom plate into a screw hole of the insert body. A screw shaft portion of a supporting rod for supporting the insert body is screwed, and a lower end portion of the supporting rod is provided with a holding body fixed to a lower portion of the molding bottom plate and a lock bolt that can advance and retreat with respect to the holding body. A configuration has been proposed in which it is sandwiched and fixed by the tip portion.

[0003]

In the configuration of the above-mentioned prior art, since the work of holding the lower end of the support rod on which the insert body on the molded bottom plate is screwed and supported is carried out at a narrow position below the molded bottom plate, there is a danger. Has poor workability and is poor in usability when the insert body is screwed and supported at a deep part of the molding bottom plate, and the insert body is supported on the molding bottom plate by the support rod whose lower end is clamped. After that, concrete is placed on the molded bottom plate while applying vibration to the mold with a vibrator, but at this time, the vibration of the vibrator may loosen the clamping of the supporting rod and the insert may be displaced. It is not preferable to securely position and fix the insert body, and after the concrete is set and cured, the support rod is unpinched from the insert body and the support rod is pulled out. Require labor to pull-out, there is a problem in that.

The present invention has been made in view of the above points, and an insert body can be easily and safely screwed onto a molding bottom plate regardless of a narrow position below the molding bottom plate or a deep position of the molding bottom plate. It can be mounted and supported, and the insert body can be positioned and fixed securely without being displaced due to the vibration of the vibrator during concrete pouring, and the bolts can be easily removed from the insert body after the concrete is set and cured. It is an object of the present invention to provide an insert body attaching device that can be separated and is therefore easy to use and excellent in workability.

[0005]

According to a first aspect of the present invention, there is provided an insert body attaching device, wherein a molded bottom plate having an insertion hole communicating with a screw hole of the insert body, and the insert body inserted from below into the insertion hole of the molded bottom plate. A bolt that is removably screwed into a screw hole of the above is vertically movable, and a rotating body that rotates the bolt, and a rotatably supporting the rotating body, are horizontally arranged below the forming bottom plate. A hollow cylindrical support body, and a rotary shaft having a gear mechanism rotatably inserted in the support body for interlockingly rotating the rotary body at an inner end portion and a rotation operation portion at an outer end portion. It was done.

The insert body attaching apparatus according to claim 2 is
The insert body attaching apparatus according to claim 1, wherein the rotating body has a vertically-shaped polygonal fitting hole into which a polygonal head of a bolt is vertically movably fitted, and a lower end portion thereof. An upper end portion of a bolt having a rotary shaft portion rotatably supported by a support body and having a polygonal head fitted in the fitting hole is projected above the rotary body.

The insert body attaching device according to claim 3 is
The insert body attaching apparatus according to claim 1 or 2, wherein the support body is vertically rotatable about a supporting shaft at a substantially middle portion in the lengthwise direction of the suspension body projecting below the molding bottom plate. And a bracket that rotatably supports the rotating shaft portion of the rotating body at the inner end thereof.

The insert body attaching device according to claim 4 is
The insert body mounting device according to claim 1 or 2, wherein the support body is disposed below the support body and is supported in parallel with the support body by a rotary operation shaft which is supported in a vertical direction by rotation of the rotary operation shaft. Is vertically movably supported via links on both sides of the rotary body, and has a bracket for rotatably supporting the rotary shaft portion of the rotary body at the inner end portion of the support body. It has a rotary operation portion at the end.

[0009]

According to the insert body mounting device of the present invention, the upper end of the bolt of the rotating body is inserted into the through hole of the molded bottom plate from below, and is inserted into the through hole of the molded bottom plate having the upper end of the bolt. While the screw holes of the insert body are provided in communication with each other, when the rotary operation part is rotated to rotate the rotary shaft in the support toward one side, the rotary body is interlocked by the gear mechanism at the inner end of the rotary shaft. While rotating, the bolt is rotated by this rotating body so that the upper end portion of the bolt is screwed into the screw hole of the insert body.

Further, when the rotating shaft is further rotated and the rotating body is rotated by the gear mechanism at the inner end portion of the rotating shaft, the bolt rotated by the rotating body is singly inserted into the screw hole of the insert body. Is gradually screwed deeper toward the upper part of the rotary body, and the bolt is pulled up from the rotary body and projected above the rotary body. Then, the bolt is deeply screwed into the screw hole of the insert body by the rotation of the rotating body, so that the insert body is reliably positioned on the insertion hole of the molding bottom plate by the bolt supported by the rotating body.

Next, when the rotating shaft in the support body is rotated toward the other side by rotating the rotating operation portion, the gear mechanism at the inner end portion of the rotating shaft causes the rotating body to rotate in the opposite direction to the above case. The bolt rotated by the rotary body is independently pulled back into the rotary body and is gradually retracted toward the lower side of the screw hole of the insert body.

Then, the bolt rotated by the rotating body comes off from the opening edge portion of the screw hole of the insert body,
The bolt separated from the insert body is lowered and accommodated in a predetermined position in the rotating body by its own weight.

In the insert body attaching device according to the second aspect, when the rotary shaft rotates toward one side, the bolt rotated by this rotary body is screwed into the screw hole of the insert body and advanced, The bolt is projected above the rotating body so as to be pulled up along the polygonal fitting hole of the rotating body through the polygonal head.

Therefore, the bolt is rotated by the rotating body through the polygonal head portion and the polygonal fitting hole into which the polygonal head portion is vertically movably fitted. When the bolt is rotated while being screwed into the screw hole, the bolt gradually protrudes above the rotating body by itself while sliding along the fitting hole through the polygonal head.

In the insert body attaching device according to the third aspect, when the rotary operation portion of the rotary shaft is operated downward,
The support having this rotary shaft is rotated around the support shaft of the suspension, and the upper end of the bolt of the rotary body supported by the bracket at the inner end of this support is inserted into the through hole of the molded bottom plate. To be done. Then, when the rotating body is rotated, this bolt is screwed into the screw hole of the insert body on the insertion hole of the molded bottom plate and advanced.

When the rotary operation portion of the rotary shaft is operated upward, the support body having the rotary shaft is rotated about the support shaft of the suspension body, and the bracket at the inner end portion of the support body is rotated. The upper ends of the bolts of the supported rotating body come out of the insertion holes of the molding bottom plate.

In the insert body attaching device according to the fourth aspect, when the rotary operation portion is rotated to rotate the rotary operation shaft, the links on both sides of the rotary operation shaft are gradually rotated upward, and The support is translated in parallel in the direction approaching the forming bottom plate by the links on both sides, and the upper end of the bolt of the rotating body provided at the inner end of the rotating shaft supported by the supporting body is It is inserted into the insertion hole of the molded bottom plate. Then, when the rotating body is rotated, this bolt is screwed into the screw hole of the insert body on the insertion hole of the molded bottom plate and advanced.

When the rotary operation shaft is rotated in the opposite direction to the above-mentioned case, the links on both sides of the rotary operation shaft are gradually turned downward and the links on both sides support the supporting member. Is translated downward in the direction away from the forming bottom plate, and the upper end of the bolt of the rotating body provided at the inner end of the rotating shaft supported by this support is removed from the insertion hole of the forming bottom plate.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The structure of an embodiment of the present invention will be described below with reference to the drawings.

First, the first embodiment will be described with reference to FIGS. 1 to 6. Reference numeral 1 is a pedestal, and the pedestal 1 is a pedestal frame 2 having a substantially U-shaped cross section and arranged on one side. A gantry frame (not shown) on the other side, which is arranged to face the gantry frame 2 on the one side, and has a substantially U-shaped cross section, and a gantry frame on the one side, which is arranged to face the left and right sides. 2 and a plurality of front and rear mount frames (not shown) arranged between the mount frame on the other side and the mount frame on the other side. In addition, a pedestal frame 2 on one side of the pedestal 1 is formed with a guide long groove 3 which is located above the intermediate portion in the vertical direction and is long in the vertical direction.

A molding bottom plate 4 is horizontally arranged and fixed on the upper part of the mount 1, and a molding side plate 5 is arranged on the peripheral side portion of the molding bottom plate 4. The molding side plate 5 includes a fixed side plate, a movable side plate, and a gable plate which form a cavity on the molding bottom plate 4.

Further, in the molded bottom plate 4, an insertion hole 6 is formed so as to penetrate in the vertical direction at a predetermined position in the center direction from the end portion thereof. In addition, the gantry frame 2 on the one side
A suspension body 7 is integrally provided on the lower portion of the molded bottom plate 4 so as to project downward from the bottom of the molding bottom plate 4 between the insertion hole 6 and the insertion hole 6.
This suspending body 7 has a horizontal fixing plate 8 fixed to the inner lower part of the molded bottom plate 4, and a suspending plate 9 is faced downward at both ends of this fixing plate 8. It is projected integrally.

Further, 10 is a hollow cylindrical support body which is horizontally disposed below the molding bottom plate 4 and which is long in the left-right direction. The support body 10 has a substantially middle portion in the longitudinal direction thereof. Is vertically rotatably supported by a support shaft 11 between lower end portions of the suspension plates 9 facing each other of the suspension body 7.

A bracket 12 is fixed to the inner end of the support 10. This bracket 12 is the support
It has a vertical plate 13 fixed to the inner end of the vertical plate 13.
A support plate 14 is horizontally formed at the upper end of the. Further, the vertical plate 13 is formed with a communication hole 16 communicating with a hollow cylindrical fitting insertion hole 15 formed in the support body 10, and a shaft insertion is provided in a central portion of the support plate 14. A hole 17 is formed. Further, the insertion portion 18 at the outer end portion of the support body 10 is vertically movably inserted into the guide long groove 3 of the gantry frame 2.

Further, 19 is a rotating body, and this rotating body 19 has a cylindrical main body 20 in the vertical direction, and inside the cylindrical main body 20, a hexagonal shape or the like in plan view from the bottom plate portion 21 upward. A polygonal fitting hole 22 is formed and the bottom plate portion is formed.
A shaft insertion hole of the support plate 14 of the bracket 12 is provided at a lower end portion of 21.
A rotary shaft portion 23 that is rotatably fitted in 17 is integrally projected, and a bevel gear 24 is fixed to a lower end portion of the rotary shaft portion 23, which is located below the support plate 14. .

Further, a lid 25 for closing the upper surface of the fitting hole 22 is detachably attached to the upper end of the cylindrical body 20, and the fitting hole 22 is attached to the center of the lid 25. A shaft through hole 26 that communicates with is formed.

Further, 27 is a bolt, and this bolt 27 has a polygonal head portion 28 such as a hexagonal shape in plan view which is fitted in the fitting hole 22 of the cylindrical body 20 so as to be vertically movable. At the same time, the screw shaft portion 29 of the bolt 27 is inserted into the shaft through hole 26 of the lid 25 of the cylindrical main body 20 so as to be rotatable and vertically movable. Then, in a normal state in which the polygonal head portion 28 of the bolt 27 is supported on the bottom plate portion 21 of the fitting hole 22, the upper end portion of the screw shaft portion 29 of the bolt 27 is covered from the shaft through hole 26 of the lid body 25. It is adapted to project slightly above the body 25.

Thus, the polygonal head portion 28 of the bolt 27 is formed in a shape that matches the planar polygonal shape of the fitting hole 22 of the cylindrical body 20. Then, when the rotating body 19 is rotated, the polygonal fitting hole 22 and the fitting hole 22 are formed.
The bolt 27 is integrally rotated in the rotation direction of the rotating body 19 by the polygonal head 28 fitted to the bottom plate portion 21 along the fitting hole 22 along the polygonal head 28. The lid 25 is slid in a direction away from and is projected toward the upper side of the lid body 25.

Then, the support body 10 is rotated about the support shaft 11 of the suspension body 7 so that the rotating body 19 is rotated upward toward the forming bottom plate 4, so that the bolt 27 of the rotating body 19 is rotated.
The upper end portion of is inserted into the insertion hole 6 of the molding bottom plate 4.

Reference numeral 30 denotes a rotary shaft that is rotatably fitted and inserted in the fitting hole 15 of the support body 10. The inner end portion of the rotary shaft 30 is an inner portion of the vertical plate 13 of the bracket 12. A bevel gear 31 that is positioned and meshed with the bevel gear 24 of the rotating body 19 is fixed. Further, a rotation operation portion 32 is fixed to the outer end portion of the rotary shaft 30 at the outer end portion of the insertion portion 18 of the support body 10. The rotary operation part 32 is formed in a polygonal shape like a bolt head of a hexagon bolt. The bevel gears 24 and 31 constitute a gear mechanism 33 that rotates the rotating body 19 in conjunction with the rotation of the rotating shaft 30.

Further, 34 is an insert body such as an insert nut. The insert body 34 is formed of a metal such as stainless steel in a cylindrical shape, and communicates with the insertion hole 6 of the molding bottom plate 4 inside thereof. A screw hole 35 is formed in the up-down direction to detachably screw the screw shaft portion 29 of the bolt 27 that is inserted from below the insertion hole 6. Further, a flange 36 for preventing rotation when embedded in a concrete product formed in a polygonal shape is integrally formed at the upper end portion of the insert body 34.

Next, the operation of the structure of the first embodiment will be described.

When the rotary operation part 32 of the rotary shaft 30 is pushed downward, the insertion part 18 of the support 10 having the rotary shaft 30 is lowered along the guide long groove 3 of the gantry frame 2 and The support 10 having the rotating shaft 30 is rotated about the support shaft 11 of the suspension 7, and the inner end of the support 10 having the rotating shaft 30 is moved upward toward the forming bottom plate 4. To be done. The insertion portion 18 of the support body 10 is engaged with the lower end portion of the guide long groove 3, and the upper end portion of the screw shaft portion 29 of the bolt 27 of the rotating body 19 supported by the inner end portion of the support body 10 is The molded bottom plate 4 is inserted into the insertion hole 6 from below.

Further, the screw hole 35 of the insert body 34 is provided in communication with the through hole 6 of the molded bottom plate 4 where the upper end of the screw shaft portion 29 of the bolt 27 is located, while the rotary operation portion 32 of the rotary shaft 30 is provided.
Is rotated by a rotary operation tool (not shown) such as a wrench to rotate the rotary shaft 30 in the support body 10 toward one side, the gear mechanism 33 at the inner end of the rotary shaft 30 is rotated. The rotating body 19 is interlocked with and the bolt 27 is rotated by the rotating body 19, and the upper end portion of the screw shaft portion 29 of the bolt 27 is screwed into the lower end portion of the screw hole 35 of the insert body 34. It

Further, the rotating shaft 30 in the support body 10 is further rotated in the same direction by the rotating operation portion 32, and the rotating body 19 is rotated by the gear mechanism 33 at the inner end portion of the rotating shaft 30. , The bolt 27 rotated by this rotating body 19 is an insert body alone.
The bolt 27 is gradually deeply screwed and advanced toward the upper side of the screw hole 35, and the bolt 27 is pulled up from the rotary body 19 and projected above the rotary body 19.

That is, since the polygonal head portion 28 of the bolt 27 is formed into a shape matching the planar polygon of the fitting hole 22 of the cylindrical body 20 of the rotating body 19, the rotating body 19 is rotated. As a result, the bolt 27 is integrally rotated in the rotation direction of the rotating body 19 by the polygonal fitting hole 22 and the polygonal head portion 28 fitted in the fitting hole 22. The screw shaft portion 29 of the insert body 34 is screwed into the screw hole 35 of the insert body 34 so as to be advanced, and the bolt 27 has a polygonal head portion in this screw hole 35.
28 slides forward along the fitting hole 22 in the upward direction away from the bottom plate portion 21 of the cylindrical main body 20.

The rotation of the rotating body 19 causes the bolt
By screwing 27 deeply into the screw hole 35 of the insert body 34, the insert body 34 is reliably positioned and supported on the insertion hole 6 of the molded bottom plate 4 by the bolt 27 supported by the rotating body 19. Moreover, when the insert body 34 is positioned on the insertion hole 6 by the bolt 27, the polygonal head 28 is located between the polygonal head 28 of the bolt 27 and the bottom plate 21 of the fitting hole 22. A predetermined space that is separated is formed.

A bolt is inserted in the screw hole 35 of the insert body 34.
When the screw shaft portion 29 of the 27 is advanced by screwing, the polygonal flange 36 of the insert body 34 is supported by a rotation stopper so that the bolt is not supported in the screw hole 35 of the insert body 34.
The screw shaft portion 29 of 27 can be easily and surely advanced by screwing.

Next, the molding side plate 5 is attached to the peripheral side portion of the molding bottom plate 4.
And a molding side plate 5 and a molding side plate 5 form a cavity, and when concrete is placed on the molding bottom plate 4, the insert body 34 projectingly supported on the molding bottom plate 4 is Buried in.

When placing this concrete, vibration is applied to the mold body by a vibrator, but the insert body 34 on the molding bottom plate 4 has the bolt 27 and the rotating body 19 of the support body 10 supporting the bolt 27. Since the insert body 34 is surely supported by the vibrator, the insert body 34 is not displaced due to the vibration of the vibrator. Therefore, the insert body 34 is embedded and fixed in the concrete on the molding bottom plate 4 at the set position. Then, the concrete is cured for a predetermined time.

Next, after curing the concrete, the rotating shaft
The rotary operation unit 32 of 30 is rotated to rotate the rotary shaft 30 in the support 10.
When it is rotated toward the other side, the rotating body 19 is interlockedly rotated in the opposite direction to the above by the gear mechanism 33 at the inner end of the rotating shaft 30, and the bolt rotated by this rotating body 19 is rotated.
The 27 is independently pulled back into the rotating body 19 and is gradually retracted toward the lower side of the screw hole 35 of the insert body 34.

That is, by rotating the rotating body 19 in the opposite direction to the above case, the polygonal fitting hole 22 is formed.
Also, the bolt 27 is integrally rotated in the rotation direction of the rotating body 19 by the polygonal head 28 fitted in the fitting hole 22, and the screw shaft portion 29 of the bolt 27 is screwed into the screw hole of the insert body 34. While being retracted in a direction away from the screw 35, the bolt 27 is directed downward in the screw hole 35 such that the polygonal head 28 approaches the bottom plate portion 21 of the cylindrical body 20 along the fitting hole 22. Slides back.

Then, the bolt 27 rotated by the rotating body 19
The screw shaft portion 29 of the insert body 34 is disengaged from the opening edge portion of the screw hole 35 of the insert body 34, whereby the bolt 27 is separated from the insert body 34, and the bolt 27 is fitted into the fitting hole 22 by its own weight.
Slide down along the polygonal head 28 of the bolt 27
The bolt 27 is dropped onto 21 and is housed in the rotary body 19, and the upper end of the screw shaft portion 29 of the bolt 27 is slightly projected above the lid body 25 of the rotary body 19.

From the screw hole 35 of the insert body 34 to the bolt
When removing the screw shaft portion 29 of 27, since the polygonal flange 36 of the insert body 34 is integrally embedded and fixed in the concrete together with the insert body 34, the insert body 34 is securely prevented from rotating. The screw shaft portion 29 of the bolt 27 can be easily and surely removed from the screw hole 35 of the insert body 34.

When the rotary operation of the rotary operation part 32 of the rotary shaft 30 is released, the support 10 having the rotary shaft 30 is bolted.
The rotating body 19 having 27 has its own weight and is rotated downward about the support shaft 11 of the hanging body 7, and the upper end of the screw shaft portion 29 of the bolt 27 of this rotating body 19 comes off from the insertion hole 6 of the molding bottom plate 4. At the same time, the insertion portion 18 at the outer end portion of the support body 10 is locked to the upper end portion of the guide long groove 3.

Then, the concrete product in which the insert body 34 is embedded can be easily taken out from the molded bottom plate 4.

Next, a second embodiment will be described with reference to FIGS. 7 and 8. In the second embodiment, the support 10 having the rotary shaft 30 of the first embodiment is moved up and down in parallel with the molding bottom plate 4. Therefore, in the second embodiment, the same components as those described in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The pedestal 1 has a vertical pedestal plate 37 located between the pedestal frame 2 and the insertion hole 6 of the molded bottom plate 4, and the guide long groove 3 of the pedestal frame 2 is provided on the upper part of the pedestal plate 37. A guide long groove 38 having the same height as the guide long groove 3 is formed on the same plane. The outer end of the rotary shaft 30 rotatably supported by the support 10 is vertically movably inserted into the guide long groove 3 of the gantry frame 2, and the inner part of the support 10 is It is vertically movably inserted in a guide long groove 38 in the upper part of the gantry plate 37.

A support hole 39 is formed in the lower part of the gantry frame 2 below the guide long groove 3 of the gantry frame 2 and the guide long groove 38 in the upper part of the gantry plate 37. A support hole 40 is formed in the lower part of the plate 37 so as to be flush with the support hole 39.

In addition, the left and right support holes 39 and 40 are rotatably inserted into and supported by the left and right portions of a rotary operation shaft 41 which is located below the support 10 and arranged in parallel with the support 10. ing. The rotary operation shaft 41 has a screw shaft portion 42 that is formed so as to rotate toward one side at its inner end portion, and has a screw shaft portion that is formed so as to rotate toward the other side at a portion near its outer end.
43, that is, the left and right screw shaft portions 42, 43 are formed so as to rotate in opposite directions.

Further, block-shaped nut bodies 44 and 45 are screwed onto the left and right screw shaft portions 42 and 43, respectively, and opposite side surfaces of the left and right nut bodies 44 and 45 are opposed to each other. The lower ends of the pair of links 47 are rotatably supported in the vertical direction by the support shaft 46, and the pair of left and right links 47 has a wide bottom end and a narrow top end. A pair of left and right portions of the support body 10 are rotatably supported by a support shaft 48 between upper ends of a pair of left and right links 47.

Further, the rotary operation shaft 41 is connected to the base plate 37.
A contact plate 49 contacting the inner part of the frame and a contact plate 50 contacting the outer part of the gantry frame 2
The rotation operation shaft 41 is prevented from moving in the axial direction at 9 and 50. Further, a polygonal rotation operation portion 51 is formed on the outer end portion of the rotation operation shaft 41.

Next, the operation of the second embodiment will be described.

The rotation operating portion 51 is rotated to rotate the rotation operating shaft 41.
When is rotated to one side, the screw shaft portions 42, 43 on both sides of the rotary operation shaft 41 move in a direction in which the nut bodies 44, 45 on both sides screwed to the screw shaft portions 42, 43 approach each other. While being moved toward, the pair of links 47 on both sides are gradually rotated upward by the nut bodies 44, 45 on both sides via the support shaft 46.

At the upper ends of the pair of links 47 on both sides, the support 10 is translated upward via the support shaft 48 in the direction approaching the molding bottom plate 4, and the support 10 is used. The upper end portion of the screw shaft portion 29 of the bolt 27 of the rotating body 19 provided on the inner end portion of the supported rotating shaft 30 is inserted into the insertion hole 6 of the molding bottom plate 4.

Further, as in the case of the first embodiment, by rotating the rotating body 30, the screw shaft portion of the bolt 27 is rotated.
29 is a screw hole of the insert body 34 on the insertion hole 6 of the molded bottom plate 4.
It is advanced by being screwed into 35, and the insert body 34 is easily screwed and supported by the bolt 27 on the insertion hole 6 of the molded bottom plate 4.

Next, after the concrete product is cured, the rotating body 19 is rotated to the other side by rotating the rotating shaft 30 in the same manner as in the case of the first embodiment.
The bolt shank 29 of the bolt 27 of 19 is the screw hole 35 of the insert body 34.
The bolt 27 is housed in the rotating body 19 in the same manner as in the first embodiment.

When the rotary operation shaft 51 is rotated to the other side in the opposite direction to the above-mentioned case, the screw shaft portions 42, 43 on both sides of the rotary operation shaft 41 are attached to the screw shaft portions 42, 43. The nut bodies 44, 45 on both sides screwed together are moved in the direction in which they are separated from each other, and the nut bodies 44, 45 on both sides are also moved.
At 45, a pair of links 47 on both sides are gradually rotated downward via a support shaft 46.

At the upper ends of the pair of links 47 on both sides, the support 10 is translated downward via the support shaft 48 in the direction away from the forming bottom plate 4.
The upper end portion of the screw shaft portion 29 of the bolt 27 of the rotating body 19 provided on the inner end portion of the rotating shaft 30 supported by is removed downward from the insertion hole 6 of the molding bottom plate 4.

As described above, the support 10 having the rotary shaft 30 is moved in parallel in the vertical direction by the vertical rotation of the pair of links 47 on both sides, whereby the rotary member is inserted into the insertion hole 6 of the molding bottom plate 4. The upper end of the screw shaft portion 29 of the bolt 27 of 19 can be smoothly inserted and removed.

[0061]

According to the first aspect of the present invention, the molded bottom plate having the insertion hole communicating with the screw hole of the insert body and the insertion hole of the molded bottom plate which is inserted from below to be freely attachable to and detachable from the screw hole of the insert body. A rotating body that is capable of vertically moving a bolt that is screwed to and that rotates the bolt, and a hollow cylindrical support that rotatably supports the rotating body and that is horizontally disposed below the forming bottom plate. Since a body and a rotary shaft that has a gear mechanism that is rotatably inserted in the support body and that rotates the rotating body in an interlocking manner at the inner end portion and a rotation operation portion at the outer end portion are provided, By rotating the rotating shaft by rotating the rotary operation part, the insert body can be easily and safely screwed and supported on the molding bottom plate regardless of the narrow position below the molding bottom plate or the deep part of the molding bottom plate. Can and concree The insert body can be reliably positioned and fixed without displacement due to the vibration caused by the vibrator during pouring, and the bolt can be easily separated from the insert body after the concrete is set and cured. It is possible to provide an insert body attaching device which has excellent operability, is easy to use, and can improve work efficiency.

According to the second aspect of the present invention, the rotating body has a vertically-shaped polygonal fitting hole into which the polygonal head of the bolt is vertically movably fitted, and the lower end portion thereof. Since the upper end of the bolt having the rotary shaft portion rotatably supported by the support body and having the polygonal head fitted in the fitting hole is projected above the rotary body, the fit of the rotary body is ensured. The polygonal head of the bolt can be fitted in the hole to securely hold the bolt rotatably, and the bolt can be smoothly slid along the fitting hole of the rotating body to make the screw hole of the insert body. Can be screwed on.

According to the third aspect of the present invention, the support has a substantially middle portion in the lengthwise direction, which is pivotally movable in the up-down direction by a support shaft on a suspension body projecting below the molding bottom plate. While supporting
Since a bracket for rotatably supporting the rotating shaft of the rotating body is provided at the inner end of the rotating body, the upper and lower portions of the bolts provided on the rotating body by the supporting body itself can be rotated by vertically rotating the supporting body. It can be easily inserted into and removed from the insertion hole of the molded bottom plate, and since this support is supported by the support shaft of the suspension,
The vertical movement of the support is easy, and the number of parts is small and the structure is simple.

According to the fourth aspect of the present invention, the support is rotated in the up-down direction by the rotation of the rotation operation shaft which is disposed below the support and is arranged and supported in parallel with the support. A bracket that is movably supported vertically via links on both sides that are moved and has a bracket that rotatably supports a rotating shaft portion of a rotating body at an inner end portion of the supporting body, and an outer end portion of the rotating operation shaft. Since the rotary operation part is provided in the rotary operation part, by rotating the rotary operation shaft with this rotary operation part, the support body supporting the rotary shaft can be surely translated in the vertical direction via the links on both sides. At the same time, the upper end of the bolt provided on the rotating body at the inner end of the support can be inserted and removed from the vertical direction more easily than that by the circular arc motion with respect to the insertion hole of the molding bottom plate. Between the upper end and the insertion hole of the molded bottom plate Location registration is also easy.

[Brief description of drawings]

FIG. 1 is a sectional view of an insert body attaching device showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state before attachment of the same insert body.

FIG. 3 is a perspective view in which a part of the same rotary body support mechanism is omitted.

FIG. 4 is a sectional view of the same rotating body.

FIG. 5 is an enlarged cross-sectional view showing a state before attachment of the insert body of the same.

FIG. 6 is an enlarged cross-sectional view showing a state in which the same insert body is attached.

FIG. 7 is a cross-sectional view of an insert body attaching device showing another embodiment.

FIG. 8 is a perspective view with a part thereof omitted.

[Explanation of symbols]

 4 Molded bottom plate 6 Insertion hole 7 Suspension body 10 Support body 11 Support shaft 12 Bracket 19 Rotating body 22 Fitting hole 23 Rotating shaft part 27 Bolt 28 Polygonal head 30 Rotating shaft 32 Rotating operating part 33 Gear mechanism 34 Insert body 35 Screw hole 41 Rotation operation shaft 47 Pair of links 51 Rotation operation part

Claims (4)

(57) [Claims] 1. A molded bottom plate having an insertion hole communicating with a screw hole of an insert body, and a bolt which is inserted into the insertion hole of the molded bottom plate from below and is detachably attached to the screw hole of the insert body is vertically movable. And a hollow cylindrical support body that is rotatably supported by the rotary body and that is rotatably supported and that is horizontally disposed below the forming bottom plate. A rotary shaft having a gear mechanism which is freely inserted and has an inner end portion for interlocking rotation of the rotating body, and a rotation operation portion having an outer end portion. 2. The rotating body has a vertically-shaped polygonal fitting hole into which a polygonal head portion of a bolt is vertically movably fitted, and a lower end portion of which is rotatably supported by a supporting body. The insert body mounting according to claim 1, wherein an upper end portion of a bolt having a rotating shaft portion formed therein and having a polygonal head fitted in the fitting hole is projected above the rotating body. apparatus. 3. A support body is rotatably supported in a vertical direction by a support shaft on a suspension body projecting below a molding bottom plate at a substantially middle portion in the longitudinal direction thereof, and an inner end thereof. The insert body attaching device according to claim 1 or 2, further comprising a bracket that rotatably supports the rotating shaft portion of the rotating body. 4. The support has a rotary operation shaft located below the support and disposed in parallel with the support and supported by the rotary operation shaft. And a bracket for rotatably supporting the rotary shaft of the rotary body at the inner end of the support, and a rotary operation unit at the outer end of the rotary operation shaft. The insert body attaching device according to claim 1 or 2, wherein.