JP3212325B2 - Formwork equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork apparatus suitable for use in the production of concrete caissons, concrete structures such as buildings, chimneys and towers.

[0002]

2. Description of the Related Art Conventionally, as a formwork required for manufacturing a concrete structure, a structure in which wooden or steel pipe members are arranged in a lattice pattern by human power is used. After the solidification of the mold, the mold is disassembled and removed, and the components of the mold are moved upward and reassembled. The transfer of the components of the formwork is performed manually or by a crane.

[0003]

However, the above-mentioned conventional mold assembling means has the following problems. (1) The installation and removal of the formwork is simple and labor intensive, which is a laborious task. (2) The procedure is from installation of the formwork to concrete placement and curing, and removal of the formwork, and movement and reattachment of the formwork.
The mold dismantling (demolding) every time becomes inefficient. (3) Manpower is required for the processing of the formwork, and the work is carried out at a high place, so there is a high risk. (4) A lifting device (such as a crane) is required when moving the formwork. (5) The quality (accuracy, etc.) of concrete casting is not stable in manual labor.

[0004] The present invention has been made to attempt is made to eliminate the above problems, easy to enlargement and reduction of form panels
A formwork device that can be mechanically performed by simple means and has means for vertically moving the panel, so that the formwork can be mounted and removed efficiently, at low cost, safely and with high precision. The purpose is to provide.

[0005]

[SUMMARY OF] To achieve the foregoing objects, the mold apparatus according to claim 1 of the present invention, four combination panel piece having two substantially equilateral panel wall at right angles to each other A form frame panel forming a substantially square horizontal cross section, a main frame disposed inside the form panel, and a lower frame disposed below the main frame. in order to perform the expansion and contraction, together with the provided cross slidably polymerized to each other of the panel wall portion to each other to adjacently to form one side of the square each leading edge of the panel piece, the upper <br / > Symbol it between the four of the panel piece and the main frame
Re horizontal telescopic mechanism provided for telescopic coupling between the mounted by the main frame and each panel piece, and, among them extendably it is mounted between the main frame and the lower frame All up and down telescopic mechanism for coupling is provided
Of the front edges of the adjacent panel walls.
Allows the horizontal expansion and contraction mechanism to extend and retract while allowing movement
The expansion and contraction direction of the horizontal expansion and contraction mechanism is
It is characterized by being set only in the line direction . Further, the mold apparatus according to claim 2 of the present invention, the upper Kisui flat expansion mechanism of the expansion direction and parallel to a plurality of telescopic guide mechanism is mounted between the panel piece and the main frame, and, A rod-shaped body for fixing to a concrete wall formed on the outer periphery of each of the formwork panel and the lower frame is provided so as to be protrudable and retractable.

[0006]

In the above-described formwork apparatus of the present invention, the following actions are performed. (1) The setting and removal of the form panel are performed by the expansion and contraction action of the horizontal expansion and contraction mechanism that operates only in the diagonal direction of the square. (2) After placing and curing concrete along the formwork panel,
After the horizontal expansion and contraction mechanism is retracted and removed, the vertical expansion and contraction mechanism is extended to raise the form panel to the next position. (3) After the above form panel is raised, the same form panel is extended by the horizontal expansion and contraction mechanism. To set the form.

[0007]

FIG. 1 is a perspective view showing a schematic structure of a formwork apparatus according to an embodiment of the present invention. FIG. Figure 2
FIG. 4 is a cross-sectional view taken along the line BB of FIG.
FIG. 6 is a cross-sectional view showing a partially modified example corresponding to FIG. 3, and FIGS. 6A to 6F are explanatory views showing a process of using the device.

[0008] As shown in FIGS. 1-3, the panel piece 1a having two substantially equilateral panel wall portion a, a right angles to each other
Are formed to form a substantially square horizontal cross section, and a pair of upper and lower main frames 2, 2 are disposed inside the form panel 1.

Then, as shown in FIG. 2, the form panel 1
To perform the enlargement and reduction in the range of expansion amount [delta], panels forming one side of the square next to each other
Le wall a, a what is, but each leading edge a ', a' phases
The panel piece 1a and the main frame 2 are provided so as to be slidable by being overlapped with each other and along the diagonal line of the square.
A horizontal expansion / contraction mechanism 5 composed of a hydraulic cylinder is mounted between the two.

Further, a telescopic guide mechanism 6 which performs an extension / contraction guide action in parallel with the extension / contraction direction of the horizontal extension / contraction mechanism 5 is provided.
It is mounted between the panel piece 1 a and the main frame 2 on both sides of the horizontal expansion and contraction mechanism 5.

A lower frame 4 is provided below the main frame 2, and an up-and-down telescopic mechanism 3 comprising a hydraulic jack or a screw jack is provided between the main frame 2 and the lower frame 4.

Further, as shown in FIGS. 3 and 4, the form panel 1 and the lower frame 4 have rod-shaped members 9 for fitting and fixing into holes 10 formed in the inner wall of the concrete wall 8.
Is provided so as to be able to protrude and retract. The rod 9 is shown in FIG.
As shown in the figure, the telescopic mechanism 9a and the hydraulic cylinder 1
In combination with 1, it protrudes or retracts horizontally, and thus the fixed support mechanism 7 is configured.

The rod-shaped body 9 may be a male threaded rod, and the hole 10 may be a female threaded hole, and these may be screwed together. Such an example will be described later with reference to FIGS.

As shown in FIG. 5, a pedestal 12 is attached to the concrete wall 8 with bolts 13 instead of the fixed support mechanism by the rod-shaped body 9, and the pedestal 12 forms the form panel 1.
Alternatively, the lower frame 4 may be supported.

With the above configuration, when using this formwork apparatus, for example, when manufacturing a caisson made of concrete, the formwork panel 1 is used as an inner formwork as shown in FIGS. 6 (a), (b),... (F).
Are operated so as to be sequentially lifted as shown in FIG.

That is, as shown in FIG. 6 (a), the lower frame 4 is fixedly supported by the fixed support mechanism 7 on the inner surface of the peripheral wall of the concrete bottom portion K, and the upper and lower telescopic mechanism 3 in the contracted state is mounted on the lower frame 4. The formwork panel 1 is supported via.

Reinforcing bars S are disposed on the peripheral wall of the bottom portion K, so that a form panel 1 as an inner form and an outer form (not shown) spaced apart along its outer periphery. Then, the first-stage concrete wall W1 is cast by rolling the reinforcing bar S. [See FIG. 6 (b)] This concrete wall W
After the solidification of the mold 1, the mold panel 1 is reduced by the contraction action of the horizontal stretching mechanism 5 along the diagonal line of the square shown in FIG. Due to the extension operation, it is moved upward as shown in FIG. At the time of placing the first-stage concrete wall W1, a hole 10 is formed in the inner peripheral surface thereof.

Then, the form panel 1 is expanded again so that it can be used as an inner form, and the reinforcing bars S on the concrete wall W1 are sprinkled so that the second-stage concrete wall W2 as shown in FIG. Is installed. At this time, the fixed support mechanism 7 of the form panel 1 is provided on the inner peripheral surface of the concrete wall W2.
A hole 10 to be engaged with is formed.

After the second-stage concrete wall W2 is solidified in this way, the mold panel 1 is removed from the mold panel 1 by a reducing operation. As shown in FIG. 6 (e), it is fixed and supported by the fitting operation.

On the other hand, the lower frame 4 is released from the bottom portion K, and is lifted by the contracting operation of the up-and-down telescopic mechanism 3, and the fixed support mechanism 7 is inserted into the hole in the inner peripheral surface of the first concrete wall W1. Fixedly supported via

Next, the fixed support of the form panel 1 on the second-stage concrete wall W2 is released, and the extension operation of the up-and-down telescopic mechanism 3 causes the form panel 1 as shown in FIG.
Is carried out, and the enlargement operation of the formwork panel 1 is performed so that the formwork panel 1 is used as an inner formwork for the third-stage concrete wall casting in which the rebar S on the concrete wall W2 is involved.

As described above, in the formwork apparatus of this embodiment,
When the form panel 1 is used as an inner form, concrete is enlarged and poured by a simple operation by the horizontal expansion and contraction mechanism 5 along the diagonal line of the square, and the horizontal expansion and contraction mechanism 5 is solidified even after the concrete is solidified. The mold panel 1 is reduced by a simple operation according to the above, and the mold is removed.

When the form panel 1 is enlarged and reduced, the relative movement of the four panel pieces 1a is caused by the operation of the horizontal expansion and contraction mechanism 5 along the diagonal line, and the leading edge a 'of each panel piece 1a is moved. It is performed smoothly in the polymerization section.

At this time, since a plurality of telescopic guide mechanisms 6 parallel to the direction of expansion and contraction of the horizontal expansion and contraction mechanism 5 along the diagonal line are mounted between the panel piece 1a and the main frame 2, each panel piece 1a is provided. The relative movement between the main frame 2 and the main frame 2 is also performed extremely smoothly. Also next to each other
The panel wall part a of each of the panel pieces 1a in contact with the main body part
Tip edges a 'and a' formed thinner than each other can slide with each other
The polymerized part, and the step that occurs in the polymerized part
The influence on the mold surface can be minimized.

The main frame 2 and the lower frame 4
The vertical expansion and contraction mechanism 3 is mounted between the main frame 2 and the lower frame 4, and the fixed support mechanism 7 having a protruding and retractable rod-shaped body 9 mounted on the main frame 2 and the lower frame 4, respectively. The formwork panel 1 can be raised sequentially, which has the advantage that the concrete wall can be efficiently driven upward from the lower concrete wall W1.

Next, FIG. 7 (plan view) and FIG. 8 (D in FIG. 7)
-D arrow sectional view), the concrete caisson 21 divided into a number of sections 22 by a partition wall 22a is used as an inner mold inside each section 22. In order to operate the form panel 1, a passage 23 for supplying the power is formed in the partition wall 22a.

That is, the hydraulic oil introduced into each hydraulic cylinder as the vertical expansion and contraction mechanism 3 and the horizontal expansion and contraction mechanism 5 in the above-mentioned formwork device is supplied from the outside via the passage 23, If the telescopic mechanisms 3 and 5 are of a screw type driven by a motor, a power supply cable is inserted into the passage 23.

By piercing the passage 23, hydraulic hoses, cables, and the like can be efficiently introduced into the compartment 22 from the outside.

Next, another example of the fixed support mechanism 7 in the above-described formwork apparatus will be described with reference to FIGS.

FIG. 9 is a side view showing a part of the fixed support mechanism in cross section, FIG. 10 is a cross sectional view taken along the line EE in FIG. 9, and FIGS. 11 (a), (b),
(c), (d) is an explanatory view showing a process of using the fixed support mechanism.

As shown in FIGS. 9 and 10, the screw fastener 104 as a rod-like body is provided with a screw hole 116 on the inner surface of the concrete wall 105.
The screw fastener 104 is moved forward and backward using the rotational force of the nut runner 101.

Then, in order to smoothly start screwing the screw fastening body 104 into the screw hole 116 in the concrete wall 105, the screw rotating body 104 is rotationally driven by the second rotating shaft 103 integrated with the screw fastening body 104 and the nut runner 101. Spring between the first rotating shaft 102
107 intervenes to transmit the rotational force.

Further, as a rotational force transmitting means between the first rotary shaft 102 and the second rotary shaft 103 divided as described above,
A spline engagement portion (or key) 108 is provided between the two.

A feed screw 112 is formed on the outer peripheral portion on the tip side of the first rotating shaft 102, and is screwed to the female screw portion of the fixed guide 111. The fixed guide 111 is attached to the lower frame 106 of the form device.

The pitch of the feed screw 112 of the first rotating shaft 102 is equal to the pitch of the screw of the screw fastening body 104 integrated with the second rotating shaft 103.

When the nut runner 101 is rotated, the first rotating shaft 102 connected by the pin 115 is similarly driven to rotate. Then, the nut runner 101 and the first rotating shaft 102 gradually slide in the axial direction while rotating by the action of the feed screw 112.

At this time, the second rotating shaft 103 is similarly pushed in the axial direction while rotating by the action of the spring 107 and the spline 108.

When the screw fastening body 104 of the second rotating shaft 103 comes into contact with the concrete wall 105, the second fastening body 104 is inserted into the threaded hole of the screw hole 116 (at one location during one rotation) until the screw fastening body 104 enters. The rotation movement of the rotation shaft 103 is stopped while the rotation is stopped. During this time, the first rotating shaft 102 is
On the other hand, as the amount of displacement of the spring increases, the second rotating shaft 103 is pressed against the concrete wall 105 by the corresponding spring force.

When the thread is inserted, the second rotating shaft 103
Starts the sliding movement while rotating again in the same manner as the first rotating shaft 102, the screw enters a predetermined amount, and the concrete wall 105
And the movable guide 109 are completely fastened by the screw 104 to loosen the fastening, which is the end of the fastening, and the screw fastening body 104 can be loosened and pulled out by reversing the nut runner 101 in the reverse order.

FIGS. 12 (cross-sectional view), FIG. 13 (fastened state) and FIG. 14 (released state) show still another example of the fixed support mechanism 7.

As shown in FIGS.
Is connected to the first rotating shaft 102 by a pin 115, and has a screw fastening body 104 at an end thereof. The first rotating shaft 102 is the second rotating shaft 10
The second rotary shaft 103 is engaged with the fixed guide 111 and the key 108 so as to be slidable in the fastening direction.

The second rotating shaft 103 includes a fixed guide 111 and a spring 107.
Supported by Reference numeral 113 denotes a slide pin for moving the nut runner 101 in the bracket 114.

When the nut runner 101 is rotated, the first rotary shaft 102 is similarly driven to rotate, and the nut runner 101 and the first rotary shaft 102 are both advanced in the fastening direction by the effect of the feed screw 112 with the second rotary shaft 103. I do.

When the screw fastening body 104 at the front end of the first rotating shaft 102 comes into contact with the other screw hole 116, the first rotating shaft 102 stops moving forward and performs only rotation. In the meantime, the second rotating shaft 103 moves backward and compresses the spring 107.

When the first rotating shaft 102 rotates and the thread of the screw fastener 104 and the thread of the screw hole 116 match, the screw fastener 104 is screwed into the screw hole 11.
Step into 6 and move on again. Then, the screw fastening body 104 completely enters the screw hole 116 to complete the fastening.

As described above, according to each of the above-described fixed support mechanisms, the screw can be fed and tightened with only one rotating device (nut runner), so that the device can be reduced in weight and size.

In addition, when a thread is applied, a smooth effect can be achieved without damaging the thread due to a cushion effect.

[0048]

As described above in detail, according to the formwork apparatus of the present invention, four panel pieces 1a forming the formwork panel 1 so as to have a substantially square horizontal cross section are substantially adjacent to each other.
The front edges a ', a' of the side panel walls a, a are slidably overlapped with each other, so that a horizontal plane which can be expanded and contracted only in the diagonal direction between the form panel 1 and the main frame 2 therein is formed. Since the extension mechanism 5 is provided , the structure of the entire apparatus can be simplified.
Gap between adjacent panel pieces 1a
The expansion of the form panel 1 into the use state and the reduction for the removal from the mold can be performed extremely efficiently, at low cost, and safely and smoothly without any gap. At this time, a plurality of telescopic guide mechanisms 6 parallel to the expansion and contraction direction of the horizontal expansion and contraction mechanism 5 along the diagonal line are mounted between the panel piece 1a and the main frame 2, so that each panel piece 1a is mounted.
The relative movement between the main frame 2 and the main frame 2 is also extremely smooth.

Further, since the up-and-down telescopic mechanism 31 is provided between the main frame 2 and the lower frame 4 below the main frame 2, it is possible to perform a measuring operation for sequentially lifting the form panel 1 upward.

Further, since the rod-like members 9 for fixing to the concrete wall are provided so as to be protruded and retractable, there is an advantage that the above-mentioned measuring operation can be performed easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic structure of a formwork apparatus as one embodiment of the present invention.

FIG. 2 is a plan view of a main part of the formwork device of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG. 2;

FIG. 4 is an enlarged view of a portion C in FIG. 3;

FIG. 5 is a cross-sectional view showing a partially modified example corresponding to FIG.

FIGS. 6 (a) to 6 (f) are explanatory views showing a use process of the formwork device.

FIG. 7 is a plan view showing another example of the caisson manufactured by the formwork device.

8 is a sectional view taken along the line DD in FIG. 7;

FIG. 9 is a side view showing another example of the fixed support mechanism in the formwork device in a partial cross section.

10 is a sectional view taken along the line EE in FIG. 9;

11 (a) to (d) are explanatory views showing a process of using the fixed support mechanism of FIG. 9;

FIG. 12 is a side view showing, in partial cross section, still another example of the fixed support mechanism in the formwork device.

FIG. 13 is an explanatory view showing a fastening state of the fixed support mechanism of FIG.

FIG. 14 is an explanatory view showing a released state of the fixed support mechanism of FIG. 12;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Form panel 1a Panel piece 2 Main frame 3 Vertical expansion / contraction mechanism 4 Lower frame 5 Horizontal expansion / contraction mechanism 6 Telescopic guide mechanism 7 Fixed support mechanism 8 Concrete wall 9 Rod 9a Telescopic mechanism 10 hole 11 Hydraulic cylinder 12 Cradle 13 Bolt a Panel wall a 'Tip edge

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Norio Yamanoi 1-1-1 Wadazakicho, Hyogo-ku, Kobe-shi Mitsubishi Heavy Industries, Ltd. Kobe Shipyard (72) Inventor Kiyomi Sasaki Machiichi Wadasaki, Hyogo-ku, Kobe-shi 1-1 1-1, Mitsubishi Heavy Industries, Ltd.Kobe Shipyard (72) Inventor Minoru Tanaka 1-1-11-25, Higashioi, Shinagawa-ku, Tokyo Goyo Construction Co., Ltd.Technical Research Laboratory Technology Institute (72) Inventor Masaki Yoshimoto Kobe 7-14-14, Wadamiya-dori, Hyogo-ku, Ishigashi-ku Nishiryo Engineering Co., Ltd. (56) References Japanese Unexamined Patent Publication No. Sho 55-81950 (JP, A) JP, U) JP-A 60-31449 (JP, U) JP-B 55-24402 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 23/00 E04G 11/28

Claims (2)

(57) [Claims] 1. A two substantially equilateral panel at right angles to each other
And form panels to form a horizontal section substantially square in combination four panel piece having a Le wall portion, a main frame disposed inside the formwork panel is disposed below the same mainframe A panel wall adjacent to each other and forming one side of the square is formed so that the front end edges of the panel pieces are adjacent to each other so as to enlarge and reduce the form panel. slidably with provided by polymerizing, the are respectively mounted between the upper SL four panel pieces and the <br/> mainframe mainframe to
A vertical expansion and contraction mechanism is provided between the main frame and the lower frame so as to extend and contract between the main frame and each panel piece. Are provided and are adjacent to each other as described above.
While allowing the front edges of the panel wall to slide together,
In order to enable the expansion and contraction operation of the expansion and contraction mechanism,
The stretching direction is set only in the diagonal direction of the above square.
Characterized in that that, the formwork device. Wherein the upper Kisui flat expansion mechanism of the expansion direction and parallel to a plurality of telescopic guide mechanism is mounted between the panel piece and the main frame, and, on the formwork panel and the lower frame The formwork device according to claim 1, wherein a rod-like body for fixing to a concrete wall formed on each outer periphery is provided so as to be able to protrude and retract.