JP3165782B2 - Concrete formwork removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for detaching a concrete form used mainly for constructing a concrete dam of a dam.

[0002]

2. Description of the Related Art For setting and removing a concrete formwork in a conventional dam construction, a mobile crane suspends the formwork, and a worker rides on a scaffold provided with a fence provided below the formwork to remove an anchor bolt. The work of releasing the dummy bolts held and supported and the work of detaching the tightening bolts, which have fixed and fastened the formwork to the existing concrete using the anchor bolts, are performed. Thereafter, the form was raised to the next concrete placing position by a crane, and the fastening bolt was screwed to the anchor bolt to replace the form with concrete. More specifically, an anchor bolt buried in existing concrete and a tightening bolt detachably connected to the bolt are used to tighten and fix a formwork for placing an upper layer of concrete on the concrete, and the dummy With the new anchor bolt cantilevered on the bolt, the upper layer concrete is poured. Thereafter, the operator removes the fastening bolt and the dummy bolt from the pair of upper and lower anchor bolts embedded and fixed, respectively. Further, the form is lifted together with the worker by the crane, and the form is raised to a new concrete placing position. The formwork is fixed to concrete by screwing the tightening bolts to the upper anchor bolts, the new anchor bolts are cantilevered to the dummy bolts, and the crane is evacuated to cast the upper layer concrete. A high-rise concrete dam is constructed by repeating the work of attaching and detaching the formwork and the concrete placing work.

[0003]

However, since the crane and the above-mentioned work for detaching the formwork by a worker are performed manually at an extremely high place where the height of the concrete dam is 30 to 100 meters, the work efficiency is extremely low. In addition, there is a problem that labor costs are high due to the special work, and the cost of dam construction cannot be reduced.

[0004] A first object of the present invention is to provide a concrete formwork detaching apparatus capable of rapidly performing the work of attaching and detaching a concrete formwork for constructing a high-rise concrete dam, thereby reducing costs.

A second object of the present invention is to provide, in addition to the first object, an apparatus for attaching and detaching a concrete form which can be manufactured at a low cost using an existing forklift truck.

A third object of the present invention, in addition to the second object, is to provide a concrete formwork attaching / detaching apparatus capable of easily mounting a release mechanism, a tightening mechanism, and a formwork detaching drive mechanism. It is in.

According to a fourth object of the present invention, in addition to the third object, the switching operation between the retracted position and the operating position of the release mechanism, the tightening mechanism and the mold release drive mechanism can be smoothly performed. It is an object of the present invention to provide a concrete form removing device.

A fifth object of the present invention, in addition to the fourth object, is to provide an inexpensive concrete mold attaching / detaching apparatus by simplifying the structure of a tightening mechanism which also serves as the release mechanism.

A sixth object of the present invention, in addition to the fourth object, is that the operation of the release mechanism can be performed reliably and quickly, and that the concrete form can be smoothly moved during the lifting operation of the concrete form. It is an object of the present invention to provide a concrete form detaching apparatus which can be lifted.

A seventh object of the present invention, in addition to the fifth object, is that the anchor bolt can be easily cantilevered to a concrete formwork and a dummy screwed to the anchor bolt fixed to concrete. It is an object of the present invention to provide a concrete form detaching apparatus capable of easily removing a bolt.

An eighth object of the present invention, in addition to the seventh object, is to provide a concrete mold attaching / detaching apparatus capable of simplifying a dummy bolt locking mechanism.
A ninth object of the present invention is to provide, in addition to the seventh object, a concrete formwork attaching / detaching apparatus capable of simplifying a mechanism for releasing a dummy bolt.

A tenth object of the present invention, in addition to the eighth object, is to provide a concrete formwork attaching / detaching apparatus which can simplify a connecting mechanism and a dummy bolt locking mechanism.

[0013] An eleventh object of the present invention is to provide a concrete form detaching apparatus which can perform the form detaching operation more quickly, in addition to any one of the first to tenth objects. is there.

A twelfth object of the present invention, in addition to the eleventh object, is to provide an apparatus for attaching and detaching a concrete form capable of simplifying the structure of the checking means.

[0015]

According to the first aspect of the present invention, in order to achieve the first to fourth objects, a concrete formwork is embedded in an existing concrete, and the concrete formwork is detachably mounted on the anchor. Tighten and fix to the concrete using the fastening tool to be connected, after casting new concrete on the existing concrete, remove the concrete formwork, move and fix it to the upper concrete, and further upper layer A concrete frame removal / attachment device used when constructing a high-rise concrete embankment by repeating the work of placing concrete, wherein the lifting device is mounted on the frame of the device and lifts the concrete frame. A connection mechanism for connecting a lifting mechanism to the concrete formwork;
A release mechanism that is mounted on the frame of the device and after the concrete is newly poured in, releases the fastener from the anchor locking tool to release the tightened state of the concrete formwork, and the release mechanism A release mechanism for separating the released concrete form from the molding surface, and in a state where the concrete form is separated from the concrete molding surface, the concrete form is pulled up to the next concrete pouring position by the lifting mechanism, and the concrete is removed. A fastening mechanism for connecting the fastening tool to an anchor locking tool newly buried and fixed and fastening the concrete formwork to existing concrete ,
The lifting mechanism has an outrigger near the front wheel
Mass of outer and inner forklift trucks
And the lift bracket attached to the inner mast
A mounting frame mounted on the bracket;
A pair of left and right guide rails extending in the vertical direction fixed to the
The guide rails are concrete
A pair of left and right guide rails that extend in the vertical direction
And both guide rails on the formwork side
Between the two guide rails on the frame side,
A connecting mechanism for connecting the mounting frame and the frame.
Elevating frame on both guide rails on the frame side
Along the two guide rails connected vertically
The lifting frame is attached to the lifting mechanism,
An attachment mechanism and a mold release drive mechanism are mounted.

In this detaching apparatus, after concrete is newly cast inside the concrete form mounted on the existing concrete, the lifting mechanism is connected to the concrete form by the connecting mechanism. Next, the fastening tool is released from the anchor locking tool by the release mechanism to release the tightened state of the concrete formwork. Next, after the concrete form is separated from the concrete molding surface by the release mechanism, the concrete form is pulled up to the next concrete placing position by the lifting mechanism. Further, the fastening tool is connected to an anchor locking tool newly buried and fixed in the concrete by a fastening mechanism, and the concrete form is fastened to the uppermost concrete layer. Therefore, the work of attaching and detaching the concrete formwork for constructing the high-rise concrete dam can be performed quickly, and the cost can be reduced. Also, the existing forklift
The lifting mechanism can be manufactured at low cost using trucks.
Release mechanism, tightening mechanism and form release drive mechanism.
The switching operation between the retracted position and the operating position can be performed smoothly.
Can Ru.

[0017]

[0018]

[0019]

[0020] For the invention 請 Motomeko 2 described to achieve the fifth object, in claim 1, mechanism said clamping is rearward movement frame is reciprocated toward the concrete form to the lifting frame And a non-rotatable engagement with a fastening bolt as a fastening tool attached to the front-rear movement frame and screwed to an anchor bolt as an anchor locking tool, and tightening the bolt in the fastening direction or A first rotating jig that rotates forward and backward in the release direction; and a gripping mechanism that temporarily grips the tightening bolt separated from the anchor bolt toward the first rotating jig. The tightening mechanism includes a tightening mechanism. It also serves as a release mechanism for the attached bolt.

Accordingly, in this detaching device, the structure of the fastening mechanism that also serves as the release mechanism is simplified, and the fastening mechanism can be manufactured at low cost. According to a third aspect of the present invention, in order to achieve the sixth object, in the first aspect , the form detachment drive mechanism comprises: a support table reciprocated toward the concrete form with respect to the elevating frame; A second rotating jig for forward and reverse rotation mounted on a support base, and a screw rod having a roller capable of contacting a concrete molding surface on a guide rail of the concrete formwork, and a screw fixed to the guide rail. When the screw rod is rotated forward by the second rotating jig, the concrete form is separated from the molding surface by a reaction force when the roller is pressed against the concrete molding surface. ing.

Therefore, in this detaching device, the operation of the release mechanism can be performed reliably and quickly, and the roller can be rolled on the molding surface to smoothly lift the concrete form.

According to a fourth aspect of the present invention, in order to attain the seventh object, in the first aspect , a male screw at a tip end of a non-buried anchor bolt is screwed into the upper part of the concrete formwork to be cantilevered. A dummy bolt having a female screw to be supported is supported so as to be able to reciprocate in a direction perpendicular to the formwork so as not to be detached from the formwork, and is always urged to a retracted position by a spring. A lock mechanism for holding the dummy bolt in a use position is provided, and the dummy bolt is retreated from the anchor bolt in a state where the lock state of the lock mechanism is released after the anchor bolt is embedded and fixed in the elevating frame by concrete. A release mechanism for releasing is provided.

Therefore, in this detaching apparatus, the anchor bolt can be easily cantilevered to the concrete form, and the dummy bolt screwed to the anchor bolt fixed to the concrete can be easily detached by the releasing mechanism. be able to.

According to a fifth aspect of the present invention, in order to achieve the eighth object, in the fourth aspect , the lock mechanism comprises: a lock lever rotatably supported by a support shaft on an upper portion of a mold; And a pin for locking the lever so that it cannot rotate with respect to the mold.

Therefore, in this attaching / detaching device, the lock mechanism of the dummy bolt can be simplified. According to a sixth aspect of the present invention, in order to achieve the ninth object, in the fourth aspect , the mechanism for releasing the tightening bolt also serves as the mechanism for releasing the dummy bolt.

Therefore, in this attaching / detaching device, the mechanism for releasing the dummy bolt can be simplified. According to a seventh aspect of the present invention, in order to achieve the tenth object, in the fifth aspect , the connecting mechanism comprises a connecting plate fixed to an upper portion of a guide rail of a concrete formwork, and a connecting cylinder fixed to the connecting plate. A support lever rotatably supported by a support shaft on the connection plate, a mounting cylinder fixed to the lever, and a connection pin supported by the mounting cylinder and always urged by a spring in a locking direction. And the connecting pin is also used as a pin of a lock mechanism of the dummy bolt.

Therefore, in this detaching device, the connecting mechanism and the lock mechanism of the dummy bolt can be simplified.
According to an eighth aspect of the present invention, in order to achieve the eleventh object, in each of the first to seventh aspects, the operation of the lifting mechanism, the release mechanism, the fastening mechanism, and the release mechanism is confirmed. A plurality of confirmation means are provided.

Therefore, in this detaching apparatus, various detaching operations of the form can be confirmed by the confirming means, and can be performed reliably and more quickly. According to a ninth aspect of the present invention, in order to achieve the twelfth object, in the eighth aspect , the plurality of confirming means are a concrete form pulled up by a pulling-up mechanism and an anchor locking buried in the concrete side. Camera to release the left and right positional relationship with the tool, release mechanism,
This is a camera that captures images of the operations of the fastening mechanism and the release mechanism.

Therefore, in this detaching apparatus, it is possible to easily confirm whether or not various kinds of detaching work is necessary based on the video imaged by the camera, and to simplify the configuration of the confirming means.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a concrete formwork 11 for constructing a concrete dam for a dam, and a self-propelled formwork detachable vehicle 51 for detaching the formwork 11. First, the concrete form 1
1 will be described with reference to FIGS.

The solid line in FIG. 3 indicates that the concrete form 11 is embedded in the concrete C on the uppermost layer and is fixed to the concrete C by a fastening bolt 14 as a fastening tool screwed into an anchor bolt 13 as an anchor locking tool. Of the next concrete C (see chain line)
Shows a state in which the mounting of the formwork 11 capable of placing the is completed. The concrete formwork 11 has a pair of left and right vertically extending guide rails 15, 15 as shown schematically in FIGS.
And a plurality of horizontal frames 18 connected to both guide rails 15 horizontally and at predetermined intervals in the vertical direction, and a plurality of vertically long molding plates 19 are joined and fixed to each horizontal frame 18 in the horizontal direction. And a molded panel 20 formed in a horizontally long rectangular shape as a whole.

Since the two guide rails 15 and 15 have the same configuration, only one of them will be described. Figure 2
As shown in FIG. 4, two groove type ropes 15A and 15B are connected to each other by welding with a plurality of upper and lower connecting lock cylinders 16 and a guide plate 23 described later. Guide rail 15
As shown in FIG. 3, the lower end of the mold is pressed against the molding surface Ca of the concrete C, supports the rail 15 in parallel with the molding surface Ca, and forms a release mechanism for separating the molding panel 20 from the molding surface Ca. Roller supporting mechanisms 17 are provided.

As shown in FIG. 4, both channel steels 15A, 15B
A bearing plate 21 having an insertion hole 21a that penetrates the tightening bolt 14 is fixed to the bearing plate 21. The fastening bolt 14 can penetrate through the insertion hole 21a and screw the female screw 14a at the tip thereof to the male screw 13a of the anchor bolt 13 fixed to the concrete C of the uppermost layer. A nut 22 is screwed into the male screw 14 b of the tightening bolt 14, and the nut 22 is fastened and fixed to the bearing plate 21.
It can be fastened to a. That is, as shown in FIG. 3, the lower end of the molded panel 20 was in contact with the upper end of the molding surface Ca of the existing concrete C, and the roller 25 of the roller support mechanism 17 was in contact with the molding surface Ca of the concrete C. In this state, the nut 22 is tightened. Then, the guide rail 15 is pressed toward the forming surface Ca, and the forming panel 20 and the roller 25 are also pressed against the forming surface Ca.
The formwork 11 is fastened and fixed such that the guide rail 15 is parallel to the molding surface Ca.

Next, the roller support mechanism 17 will be described. As shown in FIG. 4, a pair of upper and lower guide plates 23, 23 is provided between the groove-shaped ropes 15A, 15B of the guide rail 15.
A movable holder 24 is supported between the guide plates 23, 23 so as to be able to reciprocate in the horizontal direction toward the molding surface Ca, and a pair of upper and lower rollers 25 is mounted on the holder 24 around a horizontal axis. It is rotatably supported. A screw tube 26 is welded and fixed to the groove type ropes 15A and 15B via an attachment plate 27, and a female screw 26a of the screw tube 26 is screwed with a screw rod 28.
The screw rod 28 has its tip (the right end in FIG. 4) connected to a bearing 29 fixed to the holder 24 so as to be rotatable only. At the base end (the left end in FIG. 4) of the screw rod 28, a prism 28a is formed. When the prism 28a is normally rotated by a mold release drive mechanism 130 (see FIG. 17) described later, the roller 25 is pressed together with the movable holder 24 against the molding surface Ca of the concrete C, and the reaction force causes the molding panel Ca to rotate. 20 can be separated from the molding surface Ca.

In this specification, rotation in the direction of tightening (forward) the bolts and nuts is referred to as "forward rotation", and rotation in the direction of loosening (retreat) is referred to as "reverse rotation". Next, based on FIG. 5 to FIG.
The mounting structure of the dummy bolt 33 supporting the mold 3 on the mold 11 and the lock mechanism R for locking the bolt 33 in the use position will be described.

As shown in FIG. 5, bearing plates 31 are fixed to the upper ends of the guide rails 15, respectively.
A bearing tube 32 is fixed to the corresponding bearing plate 31. A dummy bolt 33 is supported by the two members 31 and 32 so as to be movable in the horizontal direction. A male screw 13a of the anchor bolt 13 is screwed into a female screw 33a formed at the tip of the bolt 33 as shown in FIG. And anchor bolt 13
Is cantilevered. A sleeve 34 is fitted and fixed to the outer periphery of the dummy bolt 33, and the sleeve 34 is attached to the left side of FIG. 5 by a spring 35, that is, to a retracted position where the tip of the dummy bolt 33 does not protrude from the molding surface of the molding panel 20. It is being rushed.

A connecting plate 40 is fixed to the upper end of the guide rail 15 by welding.
3 is stopped and held in the retracted position, and a lock lever 36 for returning the retracted position to the use position is supported by a support shaft 37.
It is supported so that it can tilt. The lock lever 36
Is locked to the left end of the sleeve 34.
The upper end of the lock lever 36 is formed on the molded panel 2.
In a state in which the sleeve 34 is in contact with the upper surface of the sleeve 0, the movement of the sleeve 34 to the left in FIG. 5 is restricted, and the dummy bolt 33 is held at the retracted position. Lock holes 36a and 40a are formed in the upper portion of the lock lever 36 and the connecting plate 40. Accordingly, when the handle 38 fixed to the upper part of the lock lever 36 is operated and the lever 26 is rotated counterclockwise about the support shaft 37 in FIG. 5, the dummy bolt 33 resists the elasticity of the spring 35. And the bolt 33 is moved to the use position shown in FIG. In this state, since the locking hole 36a coincides with the hole 40a, when the connecting pin 45 of the connecting mechanism K described later is inserted into both holes 36a, 40a, the lock lever 36 is locked at the position where the dummy bolt 33 is used. Is done. The anchor bolt 13 is cantilevered to the dummy bolt 33 at the use position as shown in FIG.

FIG. 7 shows a state in which no concrete C is cast inside the form panel 20. When concrete C is cast in this state, the anchor bolt 13
And embedded and fixed in concrete C as shown in FIG. When the dummy bolt 33 is removed from the anchor bolt 13 in this state, the locking state of the lever 36 is released by pulling out the connecting pin 45 from the lock holes 36a and 40a as shown in FIG. In this state, the dummy bolt 33
When the head 33b is rotated in the reverse direction, the bolt 33 is disengaged from the anchor bolt 13 and is moved to the retracted position indicated by the chain line in FIG. The reverse rotation of the bolt 33 is performed by a release mechanism 9 described later.
7 automatically. The molded panel 20
Is provided with a hatch formwork 39 for chamfering a corner of the concrete C.

At the upper ends of the guide rails 15, 15, a pulling mechanism 70 mounted on a self-propelled form-removable vehicle 51, which will be described later.
Are provided with connecting mechanisms K, K for connecting the lower end portions of the pair of left and right guide rails 81, 81 to the guide rails 15, 15.

Since the connecting mechanisms K and K have the same configuration, only one of them will be described with reference to FIGS. 5 to 8. The connecting plate 40 is fixed to the upper end of the guide rail 15. Connection tube 4 having connection hole 41a at the upper end
1 is horizontally fixed by welding. Also, the connecting plate 40
A support lever 42 is rotatably supported in a vertical direction by a support shaft 43 at a lower end portion of the support lever 43. A mounting cylinder 44 is welded and fixed laterally to a distal end of the lever 42, and a connecting pin 4 is provided in the cylinder.
5 is supported movably in the horizontal direction. A locking ring 46 is fitted in the middle of the connecting pin 45, and the connecting pin 45 is locked between the ring 46 and the right bottom of the mounting tube 44, that is, from the connecting hole 41 a of the connecting tube 41. A spring 47 that projects to the left and biases in a direction toward the connecting cylinder 96 on the guide rail 81 side is interposed.

Therefore, as shown in FIG. 6, when the connecting pin 45 is inserted into the connecting cylinders 41 and 96, the form rail 11 can be pulled up by the lifting operation of the guide rail 81. The connection state is released by pulling the operation knob 45a rightward in FIG. 6 and pulling out the connection pin 45 from both the cylinders 41 and 96. Thereafter, when the operating knob 45a is operated to rotate the lever 42 clockwise about the support shaft 43 in FIG. 5, the connecting pin 45 is guided at its tip end surface to the side surface of the connecting plate 40, as shown in FIG. The connection pin 4 is moved to the retracted position, and the connection pin 4 is inserted into the lock hole 36a of the lock lever 36 and the lock hole 40a of the connection plate 40 at this position.
When the distal end of the lever 5 is inserted, the lever 36 is locked at a predetermined position as described above.

As shown in FIGS. 2 and 3, bolts 14 and 3 which will be described later are provided at the lower ends of the two guide rails 15 and 15 respectively.
A scaffold 48 for an operator to inspect and repair when an abnormality occurs in the attaching / detaching operation of 3 is mounted, and a fence 49 is provided on the scaffold. Opening / closing fences (not shown) are provided above the guide rails 15 and 15.

Next, the self-propelled detachable vehicle 51 of the concrete form 11 constructed as described above will be described. As shown in FIG. 1, the forklift truck 52 includes a body frame 53, and front and rear wheels 54 and 55 provided in front and behind the frame 53. The front end of the body frame 53 moves the front wheel 54 up and down. , Body frame 53
An outrigger 56 that can adjust the position in the front-rear direction (left-right direction in FIG. 1) is mounted. As shown in FIG. 9, the outrigger 56 includes a support cylinder 58 fixed vertically to a mounting frame 57, and a movable cylinder 59 supported in the support cylinder 58 so as to be movable in the vertical direction. The distal end of a rod 60 a of a hydraulic cylinder 60 whose upper end is fixed to the support cylinder 58 is connected to the lower end of the movable cylinder 59 by a pin 61. At the lower end of the movable cylinder 59, a grounding body 62 is mounted via a bracket 59a.
Is housed. The hydraulic cylinder 63 is connected to a bearing 64 fixed to a bracket 59a via a pin 65 as shown in FIG.
A pin 67 is connected to 6, and the pin 67 is connected to the grounding body 62.

Accordingly, when the hydraulic cylinder 60 is operated, the mounting frame 57 is moved up and down, and when the hydraulic cylinder 63 is operated, the position of the mounting frame 57 can be adjusted in the front-rear direction.

Next, the lifting mechanism 70 for lifting the concrete form 11 will be described. As shown in FIG. 11, an outer mast 72 is
Are supported by the tilt cylinder 73 so as to be tiltable in the front-rear direction. A pair of inner masts 74 are provided inside the outer masts 72, and the inner masts 74 can reciprocate vertically along the outer masts 72 by the rods 76 of the lifting cylinder 75. A lift bracket 77 is provided on the front side of the inner mast 74.
Is mounted so as to be able to move up and down along the mast 74, and the lift bracket 77 is supported by a known support mechanism using a chain 78 and a sprocket. When the rod 76 of the lifting cylinder 75 is reciprocated in the vertical direction, the lift bracket 77 is moved up and down at a speed twice as high as the lifting speed of the inner mast 74.

A pair of upper and lower guide rails 77a and 77b are provided on the front surface of the lift bracket 77, and the rails 77a and 77b are provided with locking projections 79 of a mounting frame 79.
a and 79b are supported by a hydraulic cylinder 80 for horizontal position adjustment so that the position in the horizontal direction can be adjusted. The mounting frame 79 has a guide rail 15 on the formwork 11 side,
A channel steel 15A having fifteen guide grooves 15a, 15a,
A pair of left and right guide rails 81, 81 each formed of a groove type rope having the same guide grooves 81a, 81a as 15A are fixed in parallel in the vertical direction and at the same intervals as the rails 15, 15.

Accordingly, both guide rails 81, 81 are moved downward by the lift bracket 77, and the connecting cylinders 96, 96 fixed to the lower ends of both rails 81, 81 are moved to the concrete form 11 as shown in FIG. Side coupling mechanism K,
Corresponding to the K connecting cylinders 41, 41, when the lifting cylinder 75 is operated in a state where the two cylinders 41, 96 are connected by the connecting pins 45, 45, the concrete form 11 is raised.

The mounting frame 79 and the guide rail 8
1, 81, a form detaching device 83 is mounted. The form detaching device 83 is constituted by the following mechanisms (1) to (4).

(1) Release mechanism 97 for releasing the dummy bolt 33 from the anchor bolt 13 (2) Release mechanism 98 for releasing the tightening bolt 14 from the anchor bolt 13 and releasing the tightened state of the concrete form 11 (3) With the concrete form 11 raised to the next concrete placing position by the pulling-up mechanism 70, the tightening bolts 14 are tightened and fixed to the newly buried anchor bolts 13, and the form 11 is concrete C (4) A form detachment driving mechanism 1 that drives the roller support mechanism 17 that separates the molding panel 20 from the molding surface Ca with the clamping bolt 14 and the dummy bolt 33 released.
30. The release mechanisms 97 and 98 and the tightening mechanism 99 are configured as one unit to simplify the structure, and are referred to as a bolt / nut attaching / detaching mechanism 100 for convenience of description.

The bolt / nut attaching / detaching device 100 and the mold release drive mechanism 130 are vertically moved along the guide rails 81 and 15 by a single lifting / lowering mechanism. , 15 are locked. These mechanisms will be described with reference to FIGS.

As shown in FIGS. 11 and 13, rollers 86 to 86 are supported on the back of the elevating frame 84 via a pair of upper and lower brackets 85 to 85, respectively. 81, 81 guide grooves 8
1a, 81a or the guide grooves 15a, 15a of the guide rails 15, 15 reciprocate vertically. A bracket 87 is provided on the upper part of the elevating frame 84, and a chain elevating mechanism 88 is provided on the bracket 87.
Is connected to one end of the chain 88a. Lifting mechanism 8
8 rotates the sprocket wheel 88b in the forward and reverse directions, drives the chain 88a, and
Operate up and down. Reference numeral 90 denotes a chain housing case for housing the free end of the chain 88a.

As shown in FIG.
A pair of lock mechanisms 91 to 91 are provided on the back surface of the left and right sides. This lock mechanism 91 reciprocates a lock pin 93 supported by a bracket 92 in a horizontal direction by a hydraulic cylinder 94, and fixes a pair of right and left lock pins 93 to the guide rails 81 shown in FIG. By engaging with the lock holes 95a to 95a of the lock cylinders 95 to 95, the mold detaching device 83 can be connected to both the guide rails 81,
It can be locked at 81 predetermined positions at a total of four locations.

As shown in FIGS. 11 and 12, connecting mechanisms K provided at the lower ends of the guide rails 81 and 81 at the upper ends of the guide rails 15 and 15 of the formwork 11, respectively.
Connection cylinders 96, 96 having holes 96a, 96a for connecting the K connection pins 45, 45 are provided.

Next, the bolt / nut detaching mechanism 100 will be described with reference to FIGS. Elevating frame 8
A support plate 101 is attached to 4, and a pair of rails 102 are laid on the plate 101 in parallel. Both rails 10
A mounting frame 105 is mounted on the frame 2 so as to be able to reciprocate in the front-rear direction by a hydraulic cylinder 104, and a cylindrical mounting tube 106 is fixed to the frame. A rotation support cylinder 107 is rotatably supported by the mounting cylinder 106 via a bearing 108. A driven gear 109 is fitted and fixed to the rear end (left end in FIG. 15) of the rotation support cylinder 107, and the gear 109 is attached to the hydraulic motor 11 fixed to the mounting bracket 105.
The drive gear 111 fitted to the 0 output shaft rotates forward and backward.

At the front end of the driven gear 109, a sleeve 112 reciprocating back and forth is provided with splines 109a, 11a.
2a, they are fitted so that they cannot rotate relative to each other and can slide back and forth in the front-rear direction. A flange 113 is fitted and fixed to the front end of the sleeve 112, a spring 114 is interposed between the flange 113 and the driven gear 109, and the sleeve 112 is urged forward (to the right in FIG. 15). The position is regulated by a stopper 107a locked to the right end of the support cylinder 107. The sleeve 112 has a first
The rotation jig 115 is screwed and fixed, and the first rotation jig 115
Is a nut 22 screwed into the male screw 14b of the tightening bolt 14.
The nut 22 is rotatable in the normal and reverse directions.

At the front end face of the driven gear 109, permanent magnets 117 are fitted and fixed at a plurality of positions.
To be attracted 1 made of a magnetic material fitted and fixed near the tip of the object
16 can be held by suction. In this embodiment, the permanent magnet 1
A holding mechanism for temporarily holding the tightening bolt 14 on the first rotating jig 115 side by the suction body 17 and the suction target 116 is configured. A square hole 109b is provided at the tip of the driven gear 109.
When the driven gear 109 is further advanced (moved to the right) against the elasticity of the spring 114 in FIG. 15, the sleeve 112 is relatively moved along the splines 109a and 112a, and the tip of the tightening bolt 14 is moved. Prism part 1 formed in
The square hole 109b is fitted into 4c so that it cannot rotate relatively. When the hydraulic motor 110 rotates in the reverse direction in this state, the tightening bolt 14 rotates in the reverse direction. When the nut 22 is loosened by the first rotating shaft 115 and the fastening bolt 14 is removed from the anchor bolt 13, the attracted body 116 of the bolt 14 is attracted by the magnet 117 and the fastening bolt 14 is removed. And the nut 22 are received by the bolt / nut removal mechanism 100.

A housing cylinder 118 is fitted and fixed to the driven gear 109, and a slide shaft 119 is inserted through the cylinder 118 so as to reciprocate. The shaft 119 is connected to a stroke meter 120 for obtaining data for checking whether the first rotary jig 115 is fitted to the nut 22 and whether the prism 14c is fitted to the square hole 109b. ing. The storage cylinder 118 has a slide shaft 1
Spring 121 and washer 12 for urging and holding 19 in a predetermined position
2 are provided. At the upper part of the mounting cylinder 106, a rotary encoder 12 for detecting the rotation speed of the drive gear 111 and detecting the rotation speed of the nut 22 and the tightening bolt 14 is provided.
5 are supported.

Next, the screw rod 2 of the roller support mechanism 17
FIG. 1 shows a mold release drive mechanism 130 for rotating the shaft 8.
7 will be described. In this embodiment, the roller support mechanism 1
The mold release mechanism is composed of the mold release mechanism 7 and the mold release drive mechanism 130. A pair of rails 131 are laid on the elevating frame 84, and a support table 132 is supported on both rails 131 by a rod 134 of a hydraulic cylinder 133 so as to be able to reciprocate in the front-rear direction. A hydraulic motor 135 is fixed to the support table 132, a flange 137 is fitted and fixed to a rotation shaft 136 of the motor 135, and a square hole 1 is
The second rotating jig 138 formed with 38 a is connected by a bolt 139. And the prismatic part 28 of the screw rod 28
When the second rotating jig 138 is rotated forward by the hydraulic motor 135 in a state where the a is inserted into the square hole 138a, the screw rod 28 is rotated forward and the roller 2 of the roller support mechanism 17 is rotated.
The movable holder 24 holding 5 is pushed forward. When the roller 25 is pushed toward the side wall surface of the concrete C, the molding panel 20 is separated from the molding surface Ca.

Next, a description will be given of a checking means for an operator to check various kinds of attaching / detaching operations of the mold 11. FIG.
As shown in FIG. 14, a vertical line formed on the side wall surface of the concrete, that is, a vertical line Cb formed by a narrow groove at the vertical joining interface of each of the molded plates 19 is formed on the lifting frame 84. C for obtaining data for determining whether or not the form detaching device 83 is eccentric in the left-right direction by photographing
CD cameras 141 and 142 are provided. A camera 14 for photographing whether the tightening bolt 14 or the dummy bolt 13 is actually rotated is mounted on the lifting frame 84.
3 and 144, and CCD cameras 145 and 146 for photographing the rotation state of the screw rod 28 rotated by the mold release drive mechanism 130.

As shown in FIG. 20, a target 148 is adhered to one side of the upper part of the molded panel 20, and a laser oscillator 149 for irradiating the target 148 with a laser.
Are attached to the vehicle body frame 53. Further, the body frame 53 is provided with a CCD camera 147 for taking an image of the laser irradiated on the target 148. Then, it is possible to detect whether or not the self-propelled form detachable vehicle 51 is at a regular position in the traveling direction.

Next, the control unit 151 of the traveling formwork detachable vehicle 51 constructed as described above will be described with reference to FIG. The above-described control unit 151 is a central processing unit (CPU) 1 that performs various calculations and determinations.
The CPU 152 includes a read-only memory (ROM) in which various programs for detachment work are stored in advance.
153, a random access memory (RAM) 154 for temporarily storing and reading data, calculation results, and the like of the cameras 141 to 147 are connected. The CPU 1
Reference numeral 52 denotes a pair of laser rangefinders 150 for detecting the distance of the form detachable vehicle 51 from the molded panel 20 in addition to the stroke meter 120, the rotary encoder 125, and the cameras 141 to 147 via the input interface 155.
(Fastened to the body frame 53 in FIG. 20), the chain 88a
Frame detaching device 83 (bolt / nut detaching mechanism 10)
0, a rotary encoder 162 for detecting the elevation distance of the mold release drive mechanism 130) and a rotary encoder 163 for detecting the number of rotations of the second rotary jig 138 are provided, and a switch group for inputting various data is provided. Operation panel 159 is connected. The CPU 152 has an output interface 156 and a drive circuit 15.
7. The hydraulic cylinder 6 described above via the electromagnetic valve 161
0, 63, 73, 75, 80, 94, 104, 133,
Hydraulic motors 89, 110, 135, laser oscillator 149
Etc. are connected.

The drive circuit 157 includes the camera 1
A CRT display 160 is connected as a confirmation means for displaying images taken by the cameras 41 to 147 and for selectively displaying four screens for displaying various other data to inform the operator.

Next, the concrete form 11 is removed from the molding surface Ca of the concrete C using the self-propelled form detachable vehicle 51 constructed as described above, and then raised to the position where the next concrete is to be poured. Figure 1 shows the work for mounting
This will be described sequentially with reference to FIGS.

In this embodiment, the operation of connecting / disconnecting the connection pin 45 of the connection mechanism K, the operation of attaching the anchor bolt 13 to the dummy bolt 33, and the operation of attaching / detaching the target 148 to / from the molded panel 20 are performed by an assistant. For other formwork attaching / detaching operations, an operator on the detachable vehicle 51 side operates the operation panel 15.
By operating various switches of No. 9, image data captured by the cameras 141 to 147, various data calculated by the CPU 152, and the like are confirmed on the screen of the display 160.

FIG. 19 shows that the form detaching device 83 is supported by the inclined mast 72 of the detachable vehicle 51 on the upper surface of the concrete C cast by the molded panel 20.
In this state, at the center of the upper part of the molding panel 20 of the formwork 11, FIG.
Attach the target 148 as shown at 0 and then
The tilt cylinder 73 of the detachable vehicle 51 is operated to operate the mast 7.
2 is set to a vertical state.

Next, the mold detaching device 83 is lifted by the lift bracket 77 and advances so that the detachable vehicle 51 is positioned on a horizontal line passing through the center of the mold 11, and the guide rails 15, 15 of the mold 11 are moved. The detachable vehicle 51 is moved forward and stopped so that the guide rails 81, 81 on the detachable device 83 side are positioned upward as indicated by the chain line in FIG. In this state, the hydraulic cylinder 63 for adjusting the front / rear position of the outrigger 56 adjusts the position of the connecting hole 96a of the connecting cylinder 96 with respect to the connecting pin 45 within the range of ± 10 cm in the front-rear direction, and the hydraulic cylinder 63 for adjusting the horizontal position. The position of the detachable vehicle 51 is set by 80 so as to fall within the range of ± 5 cm in the left-right direction.

This setting operation is performed as follows.
When the target 148 is irradiated with a laser having a predetermined diameter from a laser oscillator 149 attached to the vehicle body frame 53, the state of the laser irradiation on the target 148 is photographed by the camera 147. The operator checks the image by looking at the display 160, and determines whether or not the detachable vehicle 51 corresponds to a position that can be finely adjusted in the left-right direction with respect to the formwork 11. The position in the left-right direction is adjusted. In addition, a laser is emitted from the pair of laser rangefinders 150 to the left and right sides of the molded panel 20, and whether or not the respective distances match is displayed on the display 160.
Will be displayed. While looking at this data, it is determined whether the position of the connecting hole 96a of the connecting tube 96 with respect to the connecting hole 41a of the connecting tube 41 in the front-rear direction is within a finely adjustable range,
The position of the detachable vehicle 51 in the front-rear direction is adjusted until it corresponds. Further, the parallelism between the molding panel 20 and the mold frame attaching / detaching device 83 is also determined from the left and right distance data, and the tilting mechanism (not shown) of the lift bracket 77 in the horizontal plane is operated until the parallelism is achieved.

Next, after the assistant removes the target 148, the cylinder 60 of the outrigger 56 is operated, and the grounding body 62 is grounded on the upper surface of the concrete C.
The connecting holes 96a of the connecting tube 96 provided at the lower end portions of the guide rails 81, 81 and the connecting holes 41a of the connecting tube 41 provided at the upper end portions of the guide rails 15, 15 on the form 11 side are positioned on the same perpendicular line. By operating the hydraulic cylinder 63, the connecting cylinder 96
Is finely adjusted in the front-back direction. Hydraulic cylinder 8
0 is operated to finely adjust the position of the guide rails 81, 81 (the connecting cylinder 96) in the left-right direction with respect to the guide rails 15, 15. Further, the tilt cylinder 73 is operated again to finely adjust the angles of the masts 72 and 74, and adjust the horizontal level of the form detaching device 83 and the guide rails 15,1.
Fine adjustment of the parallelism of 5 and 81, 81 is performed.

Next, when the lifting cylinder 75 is operated,
The lift bracket 77, both guide rails 81, 81, etc. are lowered as shown in FIG.
The connecting cylinders 96, 96 at the lower end of 1 are lowered to the same height as the connecting cylinders 41, 41 (the connecting pins 45) of the guide rails 15, 15 on the form 11 side and stopped. (See FIG. 6) The appropriateness of the two, that is, whether the connecting pin 45 enters the connecting holes 41a and 96a of the connecting cylinders 41 and 96, is confirmed by an assistant. If it is determined that the pin 45 can be inserted,
The connecting pin 45 is moved by the assistant to the operation knob 45 shown in FIG.
a to move the connecting pin 45 from the lock position to the position shown in FIG.
1a, 96a, and the guide rails 81, 81 are connected to the guide rails 15, 15.

Next, in FIG. 21, when the chain 88a is lowered by the rotation of the hydraulic motor 89 in a state where the lock state of the lock mechanism 91 is released, the form removing device 83
Roller 86 is moved downward along the guide groove 81a of the guide rail 81 and the guide groove 15a of the guide rail 15 on the side of the mold frame 11. Then, it is determined from the detection signal of the rotary encoder 162 whether or not the first rotating jig 115 of the bolt / nut attaching / detaching mechanism 100 has been moved to the position of the dummy bolt 33 as shown in FIG. And
When the movement is confirmed, the hydraulic motor 89 is stopped, the hydraulic cylinders 94 of the pair of left and right lock mechanisms 91 are operated, and the lock pins 93 are connected to the pair of right and left connection lock cylinders 16 provided on the guide rails 15, 15. The form detaching device 83 is engaged with the lock hole 16a and the
Locked in place.

In the state shown in FIG. 22, the lock lever 36 of the dummy bolt 33 is in the unlocked state since the connecting pin 45 is pulled out of the lock holes 40a and 36a as shown in FIG. Also, the bolt / nut detaching mechanism 100
Is a mechanism 9 for releasing the dummy bolt 33 in FIGS.
Function as 7. That is, the hydraulic cylinder 1 shown in FIG.
When the front and rear motion frame 103 is advanced by operating the front and rear movements 04, the mounting cylinder 106 is advanced along the rail 102, and the tip of the first rotary jig 115 is attached to the head 33 b of the dummy bolt 33 indicated by a solid line in FIG. The square hole 115a of the section is engaged. When the hydraulic motor 110 is reversely rotated in this state, the first rotary jig 115 is reversely rotated via the drive gear 111, the driven gear 109, and the sleeve 112, and the head 33b of the dummy bolt 33 rotates in the retreating direction. Then, the tip of the bolt 33 is detached from the male screw 13a of the anchor bolt 13 as shown by a chain line in FIG. The reverse rotation of the hydraulic motor 110 is automatically stopped after the detection signal from the rotary encoder 125 reaches a predetermined value. Whether the dummy bolt 33 has been detached from the anchor bolt 13 is determined by the camera 14 displayed on the display 160.
3, 144, that is, by the rotation operation of the first rotating jig 115.

Next, the hydraulic cylinder 104 is operated to move the front-rear moving frame 103 backward so that the first rotating jig 115
Are separated from the dummy bolt 33, and the locked state of the lock pin 93 of the lock mechanism 91 is released in FIG. Thereafter, the hydraulic motor 89 of the chain elevating mechanism 88 is operated to lower the form detaching device 83, and the bolt / nut detaching mechanism 100 is stopped at a position corresponding to the tightening bolt 14 as shown in FIG. In this state, the lock pin 93 of the lock mechanism 91 is actuated by the cylinder 94 to be inserted into the hole 16a of the connection lock cylinder 16 of the guide rails 15, 15, and the form detaching device 83 is operated by the two rails 1
It is locked again at four places between 5,15.

In FIG. 24, the bolt / nut attaching / detaching mechanism 100 functions as a releasing mechanism 98 of the tightening bolt 14. In FIG. 15, the hydraulic cylinder 1 of the release mechanism 98 is shown.
The forward / backward movement frame 103 is advanced by 04, and the nut 22 of the tightening bolt 14 is fitted into the square hole 115a of the first rotating jig 115. When the hydraulic motor 110 is rotated reversely by a predetermined number of rotations in this state, the nut 22 is loosened.
Thereafter, the hydraulic cylinder 104 is advanced again, and the driven gear 109 is advanced, and the square hole 109b of the gear 109 is engaged with the prism portion 14c of the tightening bolt 14. In this state, when the hydraulic motor 110 is rotated in the reverse direction and the gear 109 is rotated in the reverse direction by a predetermined number, the tightening bolt 14 is disengaged from the male screw 13 a of the anchor bolt 13. Thereafter, the attracted body 116 of the tightening bolt 14 is attracted to the magnet 117 and is pulled from the mold 11 side to the release mechanism 98 side. As a result, the fastening state of the formwork 11 to the concrete C by the fastening bolts 14 is released. When the hydraulic cylinder 104 is actuated and the longitudinal frame 103 is retracted, the first rotating jig 115 and the tightening bolt 14 are retracted, and the bolt 14 is
1 is removed from the bearing plate 21.

In FIG. 24, when the dummy bolt 33 and the tightening bolt 14 are detached from the anchor bolt 13, the concrete form 11 can be lifted. However, the molded panel 20 is made of newly cast concrete C
Of the mold 11 as it is
Is raised, the molding surface Ca may be damaged.
Therefore, the mold release drive mechanism 130 is operated in FIG.

In FIG. 24, the mold release drive mechanism 130 already corresponds to the roller support mechanism 17, and the hydraulic motor 135 is moved forward by the hydraulic cylinder 133 as shown in FIG. 138 a is fitted to the prism 28 a of the screw rod 28. In this state, the hydraulic motor 13
When 5 is rotated forward a predetermined number of times, the screw rod 28 is rotated forward,
The roller 25 of the roller support mechanism 17 is pressed against the molding surface Ca of the concrete C. Then, the concrete form 11
Is slightly tilted clockwise in FIG. 24 about the connecting pin 45. For this reason, the molding panel 20 separates from the molding surface Ca, and the releasing operation ends.

Next, as shown in FIG. 25, the elevating cylinder 75 is operated while the form 11 is in an inclined state, and the lift bracket 77 is raised together with the inner mast 74, and the form 11 and the form detaching device 83 are moved to a predetermined height. To the position. Then, the lifting cylinder 75 is stopped in a state where the first rotating jig 115 of the bolt / nut attaching / detaching mechanism 100 is pulled up to a position corresponding to the anchor bolt 13 of the uppermost concrete C. The hydraulic motor 135 of the mold release drive mechanism 130 is rotated in the reverse direction in FIG.
5 is moved in a direction to retract from the concrete C, and FIG.
, The lower end of the molded panel 20 is in contact with the upper part of the molding surface Ca. In this state, whether or not the mold 11 is held at a predetermined position is confirmed by the images of the cameras 141 and 142 displayed on the display 160. That is,
Since vertical lines Cb (see FIG. 14) are formed on the molding surface Ca by vertical seams of the molding plate 19 constituting the molding panel 20 on the screen, the anchor bolts are obtained from the camera image of the vertical lines Cb. If the horizontal position of the first rotary jig 115 is not aligned with the position of the first rotary jig 115, the horizontal position adjusting cylinder 80 is operated to perform the alignment. If the position of the tightening bolt 14 in the vertical direction with respect to the anchor bolt 13 is not aligned, fine adjustment is performed by the lifting cylinder 75.

Next, the tightening bolt 14 held by the first rotating jig 115 is
Is attached to the male screw 13a of the upper anchor bolt 13. In this mounting operation, the detaching mechanism 1
00 functions as a tightening mechanism 99 for the tightening bolt 14.
This tightening operation is performed in substantially the reverse order of the above-described bolt 14 removing operation. That is, in FIG. 27, the longitudinal frame 103 is advanced by the hydraulic cylinder 104, and the distal end of the tightening bolt 14 is inserted into the insertion hole 21 of the bearing plate 21.
a, and moves toward the anchor bolt 13, and the female screw 14 a at the tip of the tightening bolt 14 abuts the male screw 13 a of the anchor bolt 13. In this state, the first rotating jig 115 is rotated by the spring 114 so that
And its tip is in contact with the bearing plate 21.
In this state, the forward and forward rotation of the driven gear 109 causes the tightening bolt 14 to rotate forward while rotating forward, and
4a is screwed into the male screw 13a of the anchor bolt 13. The first rotating jig 115 is prevented from moving forward by the bearing plate 21, the spring 114 is compressed, and the driven gear 109, the rotation support cylinder 107, and the like move forward. When the connection of the fastening bolt 14 to the anchor bolt 13 is completed, the hydraulic cylinder 104
Is actuated, the longitudinal frame 103 is retracted, whereby the driven gear 109, the rotation support cylinder 107, etc. are retracted, and the prism 14c of the bolt 14 is detached from the square hole 109b. In this state, the first rotary jig 115 is pressed against the bearing plate 21 by the spring 114, and the nut 22 is
Is held in. Therefore, when the first rotating jig 115 is rotated forward, only the nut 22 is screwed into the screw 1 of the tightening bolt 14.
4b and is fastened to the bearing plate 21 by rotating forward,
The concrete form 11 is fastened and fixed to the concrete C.

Next, the first rotating jig 115 of the bolt / nut attaching / detaching mechanism 100 is retracted, and the locking mechanism 9 is removed.
After releasing the locked state of FIG. 1, the chain lifting mechanism 88 is operated to pull up the form detaching device 83 along the guide rails 15, 15, and as shown in FIG. And the lock pin 93 of the lock mechanism 91 is inserted into the hole 95 of the lock cylinder 95.
a and is locked again to both rails 81.

After that, the connecting pin 45 is released by an assistant, the lift bracket 77 is moved up again to move the form detaching device 83 upward, and then the outrigger 56 is operated to bring the front wheel 54 into contact with the ground. The self-propelled form detachable vehicle 51 is moved backward.

Finally, the dummy bolt 33 is switched from the retracted position shown in FIG. 5 to the use position shown in FIG. 7 by operating the lock lever 36, and the bolt 33 is locked in the use position by the pin 45. Then, the anchor bolt 13 buried in the newly cast concrete is attached to the tip of the bolt 33.

When all the work of replacing the formwork 11 is completed, the ready-mixed concrete is poured into the inside of the molded panels 20 to 20 to form the upper layer concrete C. After the concrete C is hardened, the above-mentioned detaching operation of the concrete form 11 is repeatedly performed, and a high-rise dam concrete dam is constructed.

Next, the operation and effects of the above-described detachable vehicle will be described. A In the above embodiment, the form removing device 83 is connected to the upper ends of the guide rails 15 of the form 11 by connecting the lower ends of the guide rails 81 with the connecting pins 45. The dummy bolt 33 is removed from the anchor bolt 13 by being lowered along the rails 81 and 15, and the tightening bolt 14 is detached from the anchor bolt 13 by the bolt / nut detaching mechanism 100. For this reason, both bolts 14 and 33 can be attached and detached without the worker getting on the scaffold 48, and the entire form 11 is raised to the next concrete placing position, and the form 11 is removed again. It can be quickly mounted at a predetermined position, and the work of attaching and detaching the mold 11 to and from the concrete molding surface Ca can be quickly and reliably performed.

B In the above-described embodiment, the demounting device for the concrete form can be manufactured at low cost by using the existing forklift truck 52. C In the above embodiment, the lifting mechanism 88, the release mechanisms 97 and 98, the tightening mechanism 99, and the mold release drive mechanism 1 are attached to the mounting frame 79 mounted on the lift bracket 77.
It is possible to easily mount the form detaching device 83 constituted by 30 or the like.

D In the above embodiment, the guide rails 81, 81 are provided on the mounting frame 79, the guide rails 15, 15 are provided on the mold frame 11 side, and the elevating frame 83 is moved up and down by the elevating mechanism 88 along both rails. As a result, the switching operation between the retracted position and the operating position of the release mechanisms 97, 98, the tightening mechanism 99, and the mold release drive mechanism 130 can be performed smoothly.

E In the above-described embodiment, since the configurations of the release mechanisms 97 and 98 and the tightening mechanism 99 are unitized into one mechanism, the configuration can be simplified and the cost can be reduced.

F In the above embodiment, since the roller supporting mechanism 17 on the mold frame 11 side and the mold release drive mechanism 130 on the lifting frame 84 side constitute a mold releasing mechanism,
The release operation can be reliably performed. In addition, during the lifting operation of the concrete form 11, the form can be smoothly pulled up by rolling the roller 25 to the molding surface Ca.

G In the above embodiment, since the dummy bolts 33 are supported on the concrete form 11, the anchor bolts 13 can be easily cantilevered on the concrete form 11. Further, since the lifting frame 84 is provided with the mechanism 97 for releasing the dummy bolt 33, the dummy bolt 33 screwed to the anchor bolt 13 fixed to concrete can be easily detached.

H In the above embodiment, since the lock mechanism R of the dummy bolt 33 is constituted by the lock lever 36 and the pin 45 for locking the lever 36, the lock mechanism R can be simplified.

I In the above embodiment, the connecting mechanism K
Since the connecting pin 45 is used as the lock pin of the lock mechanism R of the dummy bolt 33, the configuration can be simplified. J In the above-described embodiment, various states at the time of the form-removing operation are taken by the cameras 141 to 147 and displayed on the display 160, so that the form-removing work can be performed reliably and promptly. In addition to this, the configuration of the checking means can be simplified.

Next, another embodiment of the present invention will be described below. (1) In the above-described embodiment, a self-propelled forklift truck is used. However, instead of this, a detachable device is mounted on a truck driven by external force, or a detachable device is mounted on a non-travelable frame. Transporting this with a crane. (2) In the above embodiment, the anchor bolt 13, the fastening bolt 14 and the dummy bolt 33 that can be screwed to the bolt are used, but instead, an engagement cylinder or a locking hook (not shown) is provided at the tip. A fastening tool (not shown) that uses an anchor fastening tool provided with a fastener and locks the formwork by locking to the fastening tool
to use. (3) One end of a holder 172 having a female screw 172a in which a mounting cylinder 171 is fixed at a predetermined position of the molded panel 20 and an anchor bolt 13 is screwed into a fitting hole 171a of the cylinder 171 as shown in FIG. Are removably fitted. A tapered hole 172b into which the tip of the tightening bolt 14 can be inserted is formed inside the holder 172, and a flange 172c for position control is integrally formed on the outer periphery.

In this embodiment, the mounting cylinder 171 is detached from the holder 172 when the panel 20 is released from the molding surface Ca, but is press-fitted to such an extent that it does not come off when concrete is poured. (4) In the above embodiment, each member is photographed by the cameras 141 to 147, and this image is displayed on the display 160 to check various operation states. Instead, for example, a limit switch or a magnetic sensor, The state (stop position) of each member should be checked by a photoelectric sensor or the like. (5) In the above-described embodiment, the mold is separated from the molding surface Ca by pressing the roller 25 against the molding surface Ca, but a hydraulic cylinder 73 for tilting the outer mast 72 is used as a releasing mechanism. You can also. That is, in FIG.
Is tilted forward, the mold 11 is released by receiving a forward pulling force.

In the case of this embodiment, the roller 2
5. Since the mold releasing mechanism 130 can be omitted, the structure can be simplified. For the same purpose as the release method above,
The molded panel 20 can be separated by operating the hydraulic cylinder 63 of the outrigger 56. Further, if a mold release material such as silicone oil is applied to the molding surface of the molded panel 20 to make it easy to release from the molding surface Ca of the concrete C, a release mechanism may not be provided. In this case, the above-described lifting mechanism 70 also has the function of the release mechanism.

The technical ideas other than the claims that can be grasped from the above embodiment will be described below together with their effects. In claim 2 , a driven gear 109 rotated forward and reverse by a hydraulic motor 110 is supported on the front and rear moving frame 103 so as to be able to rotate forward and reverse at a predetermined position. The driven gear 109 is supported rotatably and slidably in the front-rear direction.
A member (114) for urging the jig 115 in the protruding direction is interposed between the first jig 115 and the rotating jig 115.
The nut 22 screwed to the male screw 14b of the tightening bolt 14 can be engaged with the square hole 115a, and a square column portion 14c formed at the center of the driven gear 109 at the base end of the tightening bolt 14. Is formed, and a permanent magnet 117 as a gripping mechanism is attached around the square hole, and a concrete form for attaching and detaching the suction target 116 attached to the tightening bolt 14 is attached and detached. apparatus.

In this detaching device, the tightening bolt 14
The tightening or releasing of the tightening nut 22 is performed by the first rotating jig 115.
The tightening or release of the tightening bottle 14 itself is performed independently using the square hole 109b of the driven gear 109. Therefore, even if there is a dimensional error in the distance between the male screw 13a of the anchor bolt 13 and the bearing plate 21, it is absorbed, and the concrete form 11 is securely tightened by the tightening bolt 14 and the nut 22. Can be.

In the ninth aspect , the cameras 141 and 142
Is a concrete frame removing / attaching device for imaging the vertical stripe Cb formed by the molded panel 20. In the case of this apparatus, the position of the concrete form 11 in the left-right direction with respect to the concrete molding surface Ca can be accurately confirmed.

A concrete formwork 11 used in the formwork detaching apparatus according to any one of claims 1 to 3, wherein a mounting tube 171 is fixed to a predetermined position of the molding panel 20;
A holder 172 for holding the anchor bolt 13 is provided in the cylinder.
The concrete formwork that can be fitted.

In the case of the concrete formwork, the dummy bolt 33 is not required, and the operation of releasing the dummy bolt 33 can be omitted, and the work efficiency can be improved.

[0100]

As described in detail above, the present invention has the following advantages because it is configured as in the appended claims.

According to the first aspect of the present invention, the work of attaching and detaching the concrete formwork for constructing the high-rise concrete dam can be performed quickly, and the cost can be reduced. In addition , it can be manufactured at a low cost using an existing forklift truck , and furthermore, a tightening mechanism, a release mechanism, and a form releasing drive mechanism are provided.
Smooth switching operation between the retracted position and the operating position
Can be.

[0102]

[0103] The invention of claim 2, wherein it is possible in addition to the effect of the first aspect, to inexpensive desorber by simplifying the structure of the clamping mechanism also serves the release mechanism. According to the invention of claim 3 , in addition to the effect of the invention of claim 1, the operation of the release mechanism can be performed reliably and quickly, and the concrete form can be smoothly moved during the lifting operation of the concrete form. Can be raised.

According to the fourth aspect of the present invention, in addition to the effect of the second aspect , the anchor bolt can be easily cantilevered to the formwork and screwed to the anchor bolt fixed to concrete. The dummy bolt can be easily removed.

According to the fifth aspect of the invention, in addition to the effect of the fourth aspect , the lock mechanism of the dummy bolt can be simplified. According to the sixth aspect of the invention, in addition to the effect of the fourth aspect, the mechanism for releasing the dummy bolt can be simplified.

According to the seventh aspect of the invention, in addition to the effects of the fifth aspect , the connecting mechanism and the lock mechanism of the dummy bolt can be simplified. According to the invention of claim 8 , in addition to the effect of the invention of claim 1, the work of attaching and detaching the mold can be performed reliably and more quickly.

According to the ninth aspect of the present invention, in addition to the effects of the eighth aspect of the present invention, it is possible to surely confirm the work of attaching and detaching the mold.
The configuration of the checking means can be simplified.

[Brief description of the drawings]

FIG. 1 is a right side view showing an embodiment of the present invention.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a side view of a concrete formwork.

FIG. 4 is a perspective view of a guide rail.

FIG. 5 is an enlarged sectional view showing a dummy bolt and a connection mechanism.

FIG. 6 is a vertical cross-sectional view passing through a connecting pin of FIG. 5;

FIG. 7 is an enlarged sectional view showing a dummy bolt and a connection mechanism.

FIG. 8 is an enlarged sectional view showing a dummy bolt and a connection mechanism.

FIG. 9 is a longitudinal sectional view of an outrigger.

FIG. 10 is a sectional view of a lower end portion of the outrigger.

FIG. 11 is a side view showing an outrigger, a mast, and a detachable device.

FIG. 12 is a front view of FIG. 11;

FIG. 13 is a side view of the desorption device.

FIG. 14 is a front view of the detachable device.

FIG. 15 is a sectional view of a nut bolt removing mechanism.

FIG. 16 is a cross-sectional view of the attachment / detachment mechanism.

FIG. 17 is a side sectional view of a mold release driving mechanism.

FIG. 18 is a block circuit diagram of a control device.

FIG. 19 is a side view of the initial state showing the detaching operation of the mold.

FIG. 20 is an explanatory diagram of an operation of adjusting a forward position of a detachable vehicle.

FIG. 21 is a side view showing a detaching operation.

FIG. 22 is a side view showing a detaching operation.

FIG. 23 is a sectional view showing the operation of releasing the dummy bolt.

FIG. 24 is a side view showing a detaching operation.

FIG. 25 is a side view showing a detaching operation.

FIG. 26 is a side view showing a detaching operation.

FIG. 27 is a sectional view showing the tightening operation of the tightening bolt.

FIG. 28 is a side view showing a detaching operation.

FIG. 29 is a partial sectional view showing another embodiment of the present invention.

[Explanation of symbols]

11 ... concrete formwork, 13 ... anchor bolts as anchor locking tools, 14 ... fastening bolts as fastening tools,
Reference numeral 15: guide rail, 17: roller support mechanism constituting a release mechanism, 20: molded panel, 33: dummy bolt, 3
6 Lock lever, 45 Connection pin, 51 Detachable car, 5
2 ... forklift truck, 53 ... frame, 70 ...
Pull-up mechanism, 83: Form detaching device, 84: Elevating frame,
88: Chain lifting mechanism, 91: Lock mechanism, 97: Dummy bolt release mechanism, 98: Tightening bolt release mechanism,
99: tightening mechanism for tightening bolts, 100: bolt / nut detaching mechanism, 109: driven gear, 109a: spline,
109b: square hole, 115: first rotating jig, 116: object to be attracted, 117: permanent magnet, 130: mold release driving mechanism constituting a releasing mechanism, 138: second rotating jig, K: coupling mechanism , R ... lock mechanism.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shunsuke Fujise 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Tsutomu Kitagawa 144, 14-14, Masamasa, Hongun, Gifu Prefecture Gifu Kogyo Co., Ltd. (72) Inventor, Yukihisa Inagawa 144, Shinjocho, Hongun, Gifu Prefecture Gifu Kogyo Co., Ltd. Within the company (72) Inventor Koji Iwata 144, Shinjocho, Hongun, Gifu Prefecture Gifu Kogyo Co., Ltd. (72) Inventor Three To 144, Jojo, Masamachicho, Hongun, Gifu Pref. (72) Inventor Daisuke Sumi, 144, Article 14, Shinjyo, Hongun, Gifu Prefecture Gifu Kogyo Co., Ltd. (56) References JP-A-5-187127 (JP, A) JP-A-5-239917 (JP, A) (58)査the field (Int.Cl. ^7, DB name) E02B 7/00 B66F 9/06 B66F 9/12 E04G 11/22 E04G 21/02 103

Claims (9)

(57) [Claims] A concrete form (11) is embedded in an existing concrete (C) by using an anchor locking device (13) and a fastener (14) detachably connected to the locking device. (C) is tightened and fixed, and new concrete is cast on the existing concrete. Then, the concrete form (11) is removed, moved and fixed to the upper concrete, and further, the upper concrete is poured. A concrete formwork detachment device for use in constructing a high-rise concrete dam by repeating work, comprising a lifting mechanism (11) mounted on a frame (53) of the above-mentioned device and pulling up the concrete formwork (11). 70), a connecting mechanism (K) for connecting the pulling mechanism (70) to the concrete formwork (11), and a newly mounted on the frame (53) of the device. After the concrete has been cast, the fastening tool (14) is released from the anchor locking tool (13) to remove the concrete form (1).
A release mechanism (98) for releasing the tightened state of 1), and a release mechanism (1) for separating the concrete form (11) released by the release mechanism (98) from the molding surface (Ca).
7, 130) and the concrete formwork (11) is on the concrete molding surface (C
In a state separated from a), the concrete formwork (11) is pulled up to the next concrete placing position by the pulling-up mechanism (70), and the concrete formwork (11) is fixed to the anchor locking tool (13) newly embedded and fixed in the concrete. A fastening mechanism (99) for connecting the fastening tool (14) to fasten the concrete form (11) to the existing concrete , wherein the lifting mechanism (70) is located near the front wheel (54). Au
Forklift truck (5) having a trigger (56)
2) Outer and inner masts (72, 74)
And the lift bracket mounted on the inner mast (74)
(77) and a mounting frame attached to the bracket.
(79) and a longitudinal extension fixed to the frame
Consists of a pair of left and right guide rails (81, 81)
The guide rails (81, 81) are concrete
A pair of right and left vertically extending guides provided on the frame (11) side
A connectable with rails (15, 15), before Symbol formwork
(11) Both guide rails (15, 15) and the frame
Between both guide rails (81, 81) on the
And a connecting mechanism (K) for connecting the
(79) and both guide rails (8
1, 81), an elevating frame (84) is provided with an elevating mechanism (8).
8) the two guide rails (8)
(1) and (15) are mounted so as to be able to move up and down,
(84) includes the release mechanism (98) and the tightening mechanism (99).
And a concrete formwork detachment device equipped with a formwork detachment drive mechanism (130) . 2. The fastening mechanism according to claim 1, wherein
9) Concrete for the lifting frame (84)
Forward and backward moving frame reciprocated toward the formwork (11)
(103), and attached to the longitudinal frame,
Screwed into an anchor bolt (13) as a car lock
Relative to the tightening bolt (14) as a tightening tool
The bolt (14) is engaged in the tightening direction or the releasing direction.
A first rotating jig (115) that rotates forward and reverse to the
The clamping bolt (14) pulled away from the bolt (13)
Gripper for temporarily gripping to the first rotating jig (115) side
(116, 117), and the fastening mechanism (9, 117).
9) A concrete frame removing / attaching device which also serves as a release mechanism (98) of the fastening bolt (14) . 3. The driving device according to claim 1 , wherein
The frame (130) is connected to the lifting frame (84).
Support platform reciprocated toward cleat formwork (11)
(132) and a second forward / reverse rotation mounted on the support base.
Rotating jig (138), while the concrete formwork
Concree on the guide rails (15, 15) of (11)
Equipped with a roller (25) that can contact the molding surface (Ca)
Screw rod (28) fixed to guide rail (15, 15)
Screw tube (26), and the screw rod (28)
When rotated forward by the second rotating jig (138), the low
(25) is pressed against the concrete molding surface (Ca)
Forming surface of concrete formwork (11) by reaction force
(Ca) A detachable device for a concrete formwork configured to be separated from (Ca) . 4. The concrete mold according to claim 1 , wherein
At the top of the frame (11), anchor bolts (1
The male screw (13a) at the end of 3) is screwed and cantilevered.
A dummy bolt (33) having an internal thread (14a) is
Removable in the direction perpendicular to the frame so that it cannot be removed from the form
And always retracted by the spring (35)
Position and the formwork (11) has a dummy bolt
Lock mechanism (R) for holding (33) in use position is provided
The lifting frame (84) has an anchor bolt
After (13) is buried and fixed by concrete,
With the lock state of the lock mechanism (R) released,
Screw the dummy bolt (33) from the anchor bolt (13).
Releasing mechanism for releasing regression (97) desorber concrete formwork is al provided. 5. The lock mechanism according to claim 4, wherein
(R) is rotated by a support shaft (37) above the formwork (11).
A movably supported lock lever (36);
With a pin (45) for non-rotatably locking the
Desorption apparatus of concrete formwork that has been configured. 6. The tightening bolt (14) according to claim 4, wherein:
The release mechanism (98) for releasing the dummy bolt (33)
An apparatus for detaching and mounting a concrete formwork that also serves as a removing mechanism (97) . 7. The connecting mechanism (K) according to claim 5 , wherein:
Are the guide rails (15,
15) a connecting plate (40) fixed to the upper part of the connecting plate,
A fixed connecting cylinder (41) and a supporting shaft attached to the connecting plate (40).
The support lever (4) rotatably supported by (43)
2) a mounting cylinder (44) fixed to the lever;
Supported by a cylinder and always in the locking direction with a spring (47)
And a connecting pin (45) which is further urged.
The connecting pin (45) is locked with the dummy bolt (33).
Der Ru concrete form of the desorber that also serves as a pin (45) of the click mechanism (R). 8. A any one of claims 1 to 7
The lifting mechanism (70), the release mechanism (98), and the tightening mechanism
(99) and each operation of release mechanism (17, 130)
A plurality of confirmation means (141 to 147, 160)
Tei Ru concrete formwork of the desorption apparatus. 9. The plurality of confirmation means according to claim 8 , wherein
Is the concrete lifted by the lifting mechanism (70).
G formwork (11) and anchors buried on the concrete side
-Camera that captures the left-right positional relationship with the locking device (13)
(141, 142 ), release mechanism (98), tightening mechanism (9
9) and imaging each operation of the release mechanism (17, 130)
A detachable device for a concrete formwork which is a camera (143 to 147) .