JPH046808B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field The present invention relates to a mobile formwork device used for pouring concrete into dams and the like.

(2) Conventional technology Conventionally, a mobile formwork device used for pouring concrete into a dam, etc. has a formwork frame with a weir plate for concrete pouring, an anchor bolt attachment/detachment device, an anchor bolt hole filling device, and various jacks. The concrete is placed in one piece, and the formwork frame is moved to place concrete.

(3) Problems to be Solved by the Invention According to this conventional movable formwork device, the anchor bolt attachment/detachment device, etc. are provided integrally with the formwork frame, which makes the device large-scale and inconvenient to handle. The problem that I was looking for has come up.

An object of the present invention is to provide a movable formwork device that solves these problems and is easy to handle.

(4) Means for Solving the Problems In order to achieve this object, the present invention provides an anchor on the outside of the form frame having a weir plate for concrete pouring on the inside for holding and detaching the form frame from the concrete surface. The present invention is characterized in that an auxiliary frame is removably provided, which has a bolt removal device, an anchor bolt hole filling device that fills the anchor bolt holes in the concrete surface, and a demolding adjustment device that adjusts the separation of the weir plate from the concrete surface.

(5) Function: An auxiliary frame that is removably attached to a formwork frame having a weir plate for concrete pouring and has an anchor bolt removal device, an anchor bolt hole filling device, and a demolding adjustment device is attached to the formwork frame. Then, while attaching and detaching the anchor bolts and filling the anchor bolt holes, the formwork frame is lifted up and concrete is successively poured upward. In this construction, during the curing period of the concrete, the auxiliary frame is removed from the form frame, and the auxiliary frame is attached to another form frame, and the above-mentioned construction is performed.

(6) Examples An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 indicates a formwork frame, and the formwork frame 1 includes parallel vertical frames 1a...1a at a predetermined interval.
It consists of horizontal frames 1b, 1b which connect and fix these vertical frames 1a...1a at their upper and lower ends, and a weir plate 2 is fixed inside the upper part of the form frame 1.

Further, dummy bolt holding devices 3 are provided at equal intervals from the upper part to the lower part of each vertical frame 1a.
and the retaining protrusions 7, 7 on both sides thereof, the Siebold retaining device 4 and the retaining protrusions 7, 7 on both sides thereof, the opening 5 and the retaining protrusions 7, 7 on both sides thereof, and the jack bolt retaining device 6 and the retaining protrusions 7, 7 on both sides thereof. Articles 7 and 7 are provided sequentially. Here, the dummy bolt holding device 3
As shown in FIGS. 5 and 6, there is a holding cylinder 3a, and a nut-shaped recess 3c that is rotatably and movably provided inside the cylinder 3a and that is screwed into the head of the anchor bolt P at its tip. and a dummy bolt 3b having a square head 3d at its root. In addition, the dummy bolt 3
b has its shaft portion screwed into the center hole of the lid 3e of the cylinder 3a. Further, as shown in FIGS. 8, 9, and 11, the Siebold holding device 4 has an outer cylinder 4a, and is provided in the outer cylinder 4a so as to be able to move forward and backward, and has a root portion shaped into a large-diameter cylindrical body 4b. an inner cylinder 4d having a tapered surface 4c formed on the front surface of the cylindrical body 4b;
A Siebold 4g having a square head 4f at its root, a nut-shaped recess 4e which is rotatably and freely advanced and retracted in the inner cylinder 4d and screwed into the head of the anchor bolt P at its tip, the tapered surface 4c, and a vertical frame. It consists of a wedge-shaped taper key 4h interposed between 1a and a cylinder 4i that moves the key up and down.

Note that 8 represents a coil spring and 9 represents a rubber pad. Further, the jack bolt holding device 6 is a twelfth bolt holding device.
As shown in the drawings and FIG. 13, it consists of a holding cylinder 6a and a jack bolt 6e which is screwed into the center hole of the lid 6b of the holding cylinder 6a and has a pressing plate 6c at its tip and a square head 6d at its base.

Reference numeral 10 indicates an auxiliary frame, and the auxiliary frame 10 also has a first anchor bolt detaching device 11, a second anchor bolt detaching device 12, and an anchor bolt hole filling device arranged at equal intervals from the upper part to the lower part, as described above. 1
3 and a demolding adjustment device 14 were sequentially provided. As shown in FIGS. 5 to 7, the first anchor bolt attachment/detachment device 11 is composed of a motor 11c that moves forward and backward while being supported by guide rods 11b...11b by the operation of a cylinder 11a, and a socket 11d fixed to the rotating shaft of the motor 11c. , actuates the cylinder 11a to turn the motor 1
1c, move the socket 11d forward and attach the socket 11d to the square head 3d of the dummy bolt 3b.
dummy bolt 3b by rotating the socket 11d by driving the motor 11c.
The anchor bolt P rotates and retreats while being screwed into the center hole of the lid body 3e, and the head of the anchor bolt P is detached from the recessed portion 3c.

Further, the second anchor bolt attachment/detachment device 12 is an eighth
As shown in FIGS. 11 to 11, the movable cylindrical body 12b, which is provided to move forward and backward by the operation of the cylinder 12a and which engages the collar of the large diameter cylindrical body 4b at its tip, and the cylinder 12c, is provided to move forward and backward by the operation of the cylinder 12a. It consists of a motor 12d fixed to the rotating shaft of the motor 12d and a socket 12e fixed to its rotating shaft, and the Siebold 4g is fixed to the head of the anchor bolt P as shown in FIG.
7, then actuate the cylinder 12c to advance the motor 12d, fit the socket 11d into the rectangular head 4f of the Siebold 4g as shown in Figure 11c, and drive and rotate the motor 12d to move the Siebold. 4g
, then actuate the cylinder 12a to move the movable cylinder 12b backward, actuate the cylinder 12c and move the motor 11d backward, and as a result, as shown in FIG. The inner cylinder 4d that engages with the tip of the large-diameter cylindrical body 4b at the brim also retreats, and the cylinder 4i
The taper key 4h is raised by the operation of the cylinders 12a and 12c.
Along with this, the motor 12d is moved forward, and the inner cylinder 4 is moved forward accordingly.
By advancing d, the bolt hole is positioned as shown in Fig. 11e, and by further advancing and rotating the socket 12e, tighten the Siebold 4g to the head of the anchor bolt P as shown in Fig. 11f, and after the tightening is completed, Fig. 11. After inserting and fixing the taper key 4h as shown in g, the motor 12d and socket 12e are moved back together with the movable cylinder 12b, as shown in FIG. 11h, so that the auxiliary frame 10 can be removed from the form frame 1.

Further, the anchor bolt hole filling device 13 includes a cylinder 13b fixed to a support arm 13a protruding outward from the auxiliary frame 10,
Filling rod 1 fixed to the tip of the rod b and having a removable part for a mortar cone Q which is a filler at the tip
3c and the cylinder 13 provided in the auxiliary frame 10.
d, and a mounting table 13e for a mortar cone Q provided at the tip of the rod, and the cylinder 13d
The mounting table 13e rises due to the operation of the mounting table 13e.
The mortar cone Q on e is held by the removable part of the filling rod 13c, and the filling rod 13c is advanced through the opening 5 by the operation of the cylinder 13b to fill the mortar cone Q into the anchor bolt hole, and then the cylinder 13b was actuated to retract the filling rod 13c and return it to its original state.

The demolding adjustment device 14 is shown in FIGS. 12 to 14.
As shown in the figure, the motor 14 is supported by the guide rods 14b...14b and moves forward and backward by the operation of the cylinder 14a.
c and a socket 14d fixed to its rotating shaft, which operates the cylinder 14a to drive the motor 14c.
Move forward and tighten the socket 14d with the jack bolt 6e.
The motor 14c is driven and rotated, and the jack bolt 6e is screwed into the center hole of the lid body 6b through the socket 14d, and rotated and moved forward. Plate 2 was made to separate from the concrete surface.
In addition, 15 is a hydraulic jack with a tire provided at the lower end of the formwork frame 1, 16 is a work scaffold provided on the formwork frame 1, and 17 is provided protruding from the lower end of each vertical frame 1a to engage and hold it. A stopper for preventing the auxiliary frame 10 from falling is shown.

The operation of the present invention will be explained based on the above configuration.

In Figures 15a to 15g, a formwork frame 1 having a weir plate 2 is fixed to the concrete surface with anchor bolts P as shown in Figure 15a, and an auxiliary material is suspended by a lifting machine or the like (not shown). frame 10
each vertical frame 1 of the formwork frame 1.
A, 1a, 1a, the holding protrusions 7...7 are sequentially inserted and attached while contacting the holding protrusions 7...7, and stopped at a predetermined position as shown in FIG. 15b. Next, with the formwork frame 1 supported by a lifting machine (not shown), the first and second anchor bolt attachment/detachment devices 11 and 12 provided on the auxiliary frame 10 are operated as described above to remove the dummy bolts 3b and Siebolds 4g. Retract and separate these from the anchor bolt P as shown in Fig. 15c.

Next, the attachment/detachment adjustment device 14 is activated, the jack bolt 6e is advanced, the weir plate 2 is removed from the concrete surface by the pressing plate 6c as shown in FIG. At the same time, the attachment/detachment adjustment device 14 is operated to retract the jack bolt 6e, and the form frame 1 is lifted up a predetermined distance upward by the lifting machine or the like, as shown in FIG. 15e.

Next, the jack with rollers 15 is operated to move the rollers backward to bring the weir plate 2 into contact with the concrete surface, and the first and second anchor bolt detaching devices 1
1 and 12 as described above, and remove the dummy bolt 3b.
Then, the Siebold 4g is advanced and rotated to be screwed into the anchor bolt P to fix the formwork frame 1 to the concrete surface as shown in Fig. 15f. After adjusting the position of the formwork frame 1 using the demolding adjustment device 14, the anchor bolt hole filling device 13 is operated to fill the anchor bolt holes with mortar cones Q. Next, the first and second anchor bolt detachment devices 11,
As described above, the 12 sockets 11d and 12e are moved back to separate from the dummy bolts 3b and Siebolds 4g, and the filling rod 13c of the anchor bolt hole filling device 5 is moved back, and each auxiliary frame 10...10 is removed from the formwork by a lifting machine or the like. Each vertical frame 1 of frame 1
a...Lift up from 1a and remove dummy bolt 3b
After attaching the anchor bolt P to the tip of the anchor bolt P as shown in Figure 15g, concrete is poured.

The above operations are repeated in order to pour concrete upward.

FIG. 16 shows another embodiment of the Siebold holding device 4 of the present invention, in which the outer diameter of the middle part of the inner cylinder 4d is made small, an O-ring 4j is fixed approximately at the center of the middle part, and the outer cylinder 4a A gap m is provided between the inner cylinder 4d and the inner cylinder 4d. Also, the outer diameter of the Siebold 4g is smaller than the inner diameter of the inner cylinder 4d, and an O-ring 4k provided on the inner surface of the root of the inner cylinder 4d connects the inner cylinder 4d and the Siebold 4.
There is a gap n between Siebold g and Siebold 4g.
is held at the center of the inner cylinder 4d.

The Siebold holding device 4 formed as described above operates conveniently when eccentricity or axis misalignment occurs between the anchor bolt p and the Siebold 4g when the Siebold 4g is screwed onto the anchor bolt p. That is, Siebold 4g and inner cylinder 4
Since there is a gap n between the Siebold 4g and the Siebold 4g, and the tip of the Siebold 4g is tapered,
The tip of the Siebold 4g is smoothly screwed into the anchor bolt p. Also, when inserting and tightening the inner cylinder 4d by lowering the taper key 4h, the Siebold 4g
Regardless of the axis between the outer cylinder 4a and the outer cylinder 4a, the tip of the inner cylinder 4d is fitted into the Siebold hole and tightened due to the gap m between the outer cylinder 4a and the inner cylinder 4d.

(7) Effects of the Invention As described above, according to the present invention, the formwork frame and the auxiliary frame equipped with the anchor bolt attachment/detachment device, the anchor bolt hole filling device, and the mold release adjustment device are separated, and the auxiliary frame is attached to the formwork frame. Insert and remove the
Since concrete is poured, the auxiliary frame can be cast with the minimum number of sets, reducing the number of each device, thus reducing the cost of equipment, and allowing the mechanical parts to be mounted on the auxiliary frame. Since there is maintenance,
It has the effect that handling becomes easy and all operations can be automated.

[Brief explanation of drawings]

Fig. 1 is a front view of one embodiment of the movable formwork device of the present invention, with an auxiliary frame attached to one location of the vertical frame, Fig. 2 is a plan view of a portion thereof, and Fig. 3 is the same as Fig. 1. Figure 4 is a cross-sectional view taken along the line - of Figure 1.
5 is an enlarged sectional side view of the first anchor bolt attachment/detachment device, FIG. 6 is a sectional plan view thereof, FIG. 7 is a front view thereof, and FIG. 8 is an enlarged sectional side view of the first anchor bolt attachment/detachment device. Enlarged cross-sectional side view of part, No. 9
The figure is a cross-sectional plan view, FIG. 10 is a half-cut front view, FIG. 11 is an explanatory diagram showing its operating state,
2 is an enlarged cross-sectional side view of the demolding adjustment device, FIG. 13 is a cross-sectional plan view thereof, FIG. 14 is a half-cut front view, and FIG. 15 is a cross-sectional side view showing the operation of the movable formwork device. FIG. 16 is an enlarged sectional side view showing another embodiment of the second anchor bolt attachment/detachment device. 1... Formwork frame, 2... Weir board, 10...
Auxiliary frame, 11, 12... Anchor bolt attachment/detachment device, 13... Anchor bolt hole filling device, 14...
...Mold removal adjustment device.

Claims (1)

[Claims] 1. On the outside of the form frame which has a weir plate for concrete pouring on the inside, an anchor bolt attachment/detachment device for holding and detaching the form frame on the concrete surface, and an anchor bolt hole filling device for filling the anchor bolt holes in the concrete surface. A movable formwork device comprising a removably attached auxiliary frame having a demolding adjustment device for adjusting separation of a weir plate from a concrete surface.