JPH0612892Y2 - Side frame fixing device for concrete formwork - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention (Industrial field of application) The present invention is a side frame fixing device used for a depth adjustable mold for molding various concrete products in the civil engineering and construction industries. More specifically, the present invention relates to a device that allows a pushing member to be pushed out by a thrusting means so that the lower portion of a side frame is pressed against a side edge of a surface plate to securely fix the side frame to the surface plate with a simple structure and operation.

(Prior Art) The present inventor first devised a concrete formwork in which a plurality of types of products having different heights can be obtained by the same formwork.
Filed as No. 44835. This formwork is shown in FIG.
As shown in FIG. 14, in the concrete formwork in which the lower part of the side frame (b) is brought into contact with the side edge of the surface plate (a) to form a molding space, a small receiver c which can convert the height to the surface plate (b). Are attached at predetermined intervals, and the lower edge of the side frame B is supported by these receivers.

(Problems to be Solved by the Invention) The concrete formwork of the above-mentioned prior application is shown in FIGS.
As shown in the figure, insert notches at the lower part of the side frame b at predetermined intervals,
Suppression plates are provided on both sides of the side plate, and the surface plate a is provided with a tightening plate that extends from the notch D of the side frame b between the suppressing pieces and corresponds to this tightening plate. By opening the wedge holes G and C and inserting the wedges into both wedge holes G and C, the lower part of the side frame B is pressed against the side edge of the surface plate B to create a molding space that does not leak. To be formed. Therefore, the wedge hole is opened by aligning the position with the fastening plate on the surface plate side and the holding plate on the side frame side,
Moreover, some of the wedge holes on the side of the holding plate must be opened at the correct intervals, which makes the process troublesome and the production cost high.
In addition, the operation of inserting the wedge by aligning the wedge holes of the holding plate and the tightening plate is
There is a problem that it takes time and work efficiency is poor.

The present invention has been made to solve the above-mentioned problems, in which a pressing body is supported by a wrist metal attached to the outside of a surface plate, and the pressing body is pushed out by a thrusting means to lower the lower part of the side frame. Provided is a side frame fixing device for a concrete formwork, which is capable of easily and securely fixing the side frame to the surface plate by pressing the side edge of the surface plate with a simple fixing device that does not require processing on the side frame side. Is.

B. Configuration of the Invention (Means for Solving the Problem) A side frame fixing device for a concrete formwork according to the present invention is configured by abutting a lower portion of the side frame to a side edge of a surface plate and adjusting the side frame up and down. In a concrete formwork capable of adjusting the depth of the space, a required number of arms are provided on the outside of the surface plate so that there is a space between the side edge and the lower part of the side frame. They were attached by attaching members, and these arms supported a pressing body corresponding to the lower part of the side frame, and a thrusting means for pushing the pressing body so that the lower part of the side frame is pressed against the side edge of the surface plate. The problem is solved by the configuration.

(Operation) The apparatus of the present invention configured as described above is shown in FIGS.
When the wedge type thrusting means as shown in FIG. 7 is used, the receiving body is fixed by screws so that the first receiving surface having a small distance from the support shaft is directed upward as shown in FIG. If the lower edge of the lower side frame is supported, the side frame lowers with respect to the surface plate, so that the forming space formed by the side frame on the surface plate becomes shallower, and the receiving body is moved from the spindle as shown in FIG. By fixing the second receiving surface with a large distance to the upper side with screws and supporting the lower edge of the side frame above it, the side frame goes up against the surface plate and the molding space becomes deep. Therefore, when the depth of the molding space is set in this way, if the pushing body is pushed toward the lower portion of the side frame by the thrusting means supported by the arm, the lower portion of the side frame is pressed by the pushing body to the surface plate. It is strongly pressed against the side edges of the mold to form a molding space in the mold that does not cause leakage.

If a molding space is formed in this way, concrete is poured into the molding space, the product is hardened to obtain a product, and when the mold is released, the side frame is detached from the surface plate by pulling back the pressing body. The mold can be easily removed and the product can be easily taken out.

Although the above-described operation has been described only with respect to the wedge-type thrusting means, the operation by other thrusting means such as screws, cams, cylinders, etc. is also similar to this, and therefore the explanation of the operation with respect to these Is omitted.

(Embodiment) An embodiment of a side frame fixing device for a concrete formwork according to the present invention will be described below with reference to the drawings.

1 to 7 show an embodiment using a wedge-type thrusting means of a pressing body. In this embodiment, 1 is a surface plate, and a side frame 2 is provided on a side edge of the surface plate 1. The lower part is brought into contact with this part, and this part is pressed against the side edge of the surface plate 1 by a pressing body to be described later to obtain a concrete form A in which a desired molding space which does not leak is formed.

Reference numeral 3 denotes a large number of sets of mounting members that project outward from the lower portion of the surface plate 1, and a side frame 2 is provided between the side edge of the surface plate 1 at the tip thereof.
The arm 4 is mounted on a shaft 5 so that it can be tilted up and down so that there is an interval for inserting the lower part of the arm. The arm 4 is set upright when the mold is assembled, and is horizontally tilted when the mold is released.

6 is a pressing body which is supported by the above-mentioned arm 4 so as to move back and forth,
A tip end of which is brought into contact with a receiving portion 7 attached so as to have a required width for raising and lowering to the outside of the lower portion of the side frame 2, and a thrusting means, which will be described later, is engaged in the middle thereof. In the case of the wedge type thrusting means which does not rotate at the tip of the pressing body 6, a vertical groove 8 is provided as shown in FIGS. 5 and 6, and the groove 8 is provided in the lower portion of the side frame 2. In the case of a rotating thrusting means such as a cam type or a screw type which will be engaged with a vertical guide 8 attached to the receiving portion 7, a thrust seat 10 is attached as shown in FIGS. 8 and 9. The thrust seat 10 to the side frame 2
It is brought into contact with the receiving portion 7 provided in the lower part of the.

Reference numeral b is a thrusting means for pushing the pressing body 6 so that the lower portion of the side frame 2 is pressed against the side edge of the surface plate 1, which is a non-rotating wedge type.
A cylinder type, a rotating cam type, a screw type, etc. are used. In the case of the wedge type, as shown in an enlarged view in FIGS. The wedge hole 11
When the tip of the pressing body 6 hits the receiving portion 7 of the side frame 2, a part of the pressing body 6 is bored in the arm 4 and the wedge hole 11
As shown in the figure, when the wedge 12 is driven in, the pressing body 6 is pushed out by the inclined surface thereof, and the lower portion of the side frame 2 is strongly pressed against the side edge of the surface plate 1. However, when the wedge 12 is pulled out from the wedge hole 11, the pressing body 6 is pulled back until the stopper 13 on the tip end side hits the support body 4, so that the side frame 2 can be detached and opened.

In the case of the screw type, as shown in FIG. 8, a multiple screw 14 having a large lead is movably fitted in the middle of the pressing body 6, and the screw 14 is screwed to the screw 15 to form the arm 4. Then, when the key 17 fixed to the pressing body 6 is engaged with the notch 16 provided on the side frame 2 side of the mermaid 14, the pressing body 6 and the screw 14 are coupled, so the handle attached to the pressing body 6 When the screw 14 is rotated by 18 and the pressing body 6 is pushed out toward the lower part of the side frame 2 by the inclined surface, the lower part of the side frame 2 is moved to the surface plate 1
Is strongly pressed against the side edge of. However, when the key 17 is engaged with the key groove 19 formed over the entire inner length of the screw 14, the pressing body 6 is pulled back until the stopper 13 hits the arm 4 so that the side frame 2 can be detached and opened. Constitute.

In the case of the cam type, as shown in FIG. 9, a swash cam 20 is movably fitted in the middle of the pressing body 6 and the cam 20 is engaged with a cam receiver 21 formed on the arm 4 and Side frame 2 of cam 20
When the key 23 fixed to the pressing body 6 is engaged with the notch 22 provided on the side, the cam 20 and the pressing body 6 are coupled,
When the cam 20 is rotated by the handle 24 attached to the pressing body 6 and the pressing body 6 is pushed out toward the lower part of the side frame 2 by the slope, the lower part of the side frame 2 is strongly pressed against the side edge of the surface plate 1. . However, when the key 23 is engaged with the key groove 25 provided over the entire inner length of the cam 20 and the cam receiver 21, the pressing body 6 is pulled back until the stopper 13 hits the support body 4 and the side frame 2 is detached and opened. Configure so that you can.

In the case of the cylinder type, as shown in FIG. 10, the arm 4 is supported by a cylinder 26 having a rod as a pressing body 6, and the fluid supply to the cylinder 26 is switched to advance an internal piston (not shown). And the rod pressing body 6 is the side frame 2
Of the side frame 2 is strongly pressed against the side edge of the platen 1. However, when the piston is retracted, the rod pressing body 6 is pulled back and the side frame 2 is detached and opened.

Reference numeral 27 denotes a receiver that supports the lower edge of the side frame 2 described above,
The receiving member is formed in a square shape having first and second receiving surfaces c and d with different distances from the axis described later at the intervals shown in FIGS. 4 and 5. 27 is rotatably attached to the lower side surface of the surface plate 1 by the support shaft 28, the receiving body 27 is laterally converted as shown in FIG. 1, and the set screw 29 fixes the first receiving surface c. As the side frame 2 hits the lower end of the side frame 2, the side frame 2 descends from the surface plate 1 as shown in FIGS.
The depth of the molding space formed inside is made shallow.

However, when the receiving body 27 is vertically converted as shown in FIG. 4 and fixed by the setscrew 29, the second receiving surface d hits the lower end of the side frame 2, so that the side frame 2 is fixed to the surface plate 1. It goes up and deepens the depth of the molding space.

In addition, as the above-mentioned receiving body 27, in addition to this, receiving bodies having different heights are connected in a stepwise manner, or individual receiving bodies having different heights are selectively provided between the lower end of the side frame and the supporting body. It is possible to use a device that is sandwiched between the two, but since this receiver is not the gist of the present application, the illustration and description thereof are omitted.

C. Effect of the Invention As described above, in the side frame fixing device for a concrete formwork according to the present invention, the pressing body of the side frame and its thrusting means are provided independently of the side frame, and a wedge hole is formed on the side frame side. Since such processing is not required, the processing is easy and the manufacturing cost is reduced.

The side frame fixing in which the pushing member is pushed out by the thrusting means and the lower part of the side frame is brought into pressure contact with the side edge of the surface plate, the operation is performed quickly and easily, and work efficiency is greatly improved.

Since the pressing body and its thrusting means are supported by the arms, even if the side frame is raised or lowered, the side frame is always suppressed near the upper surface of the surface plate, which has a high sealing effect, and the formation of a molding space that does not cause spillage is ensured. Done.

It has unique effects such as.

[Brief description of drawings]

The drawings show an embodiment of a side frame fixing device for a concrete formwork according to the present invention, and FIG. 1 is a vertical cross-sectional side view showing a fixed state of the side form when the molding space of the formwork is made shallow, and FIG. Is a front view of a part of the above, FIG. 3 is a vertical sectional side view showing a fixed state of the side frame when the molding space of the mold is deepened, FIG. 4 is a front view of a part of the same, and FIG. FIG. 6 is a vertical sectional side view showing an enlarged main part of the figure, FIG. 6 is a plan view showing a wedge-type thrusting means of the pressing body in the same as above, and FIG. 8 is a vertical sectional side view showing the screw type thrusting means of the pressing body, FIG. 9 is a vertical sectional side view showing the cam type thrusting means of the pressing body, and FIG. 10 is a vertical sectional side view showing the cylinder type thrusting means of the pressing body. FIG. 11 is a vertical cross-sectional side view showing a state in which the molding space of a conventional form is adjusted to be shallow by adjusting the side frame up and down to adjust the depth of the molding space. Longitudinal side view of the state FIG. 12 was deep molding space of the same, FIG. 13 is a front view of a portion showing a side frame fixing means of the same, FIG. 14 is a longitudinal side view of the same. 1 ... Surface plate 2 ... Side frame A ... Formwork 4 ... Arms 6 ... Pressing body b ... Propulsion means

Claims (1)

[Scope of utility model registration request] 1. A lower part of a side frame 2 is brought into contact with a side edge of a surface plate 1,
In the concrete formwork in which the depth of the molding space can be adjusted by adjusting the raising and lowering of the side frame 2, the lower part of the side frame 2 is inserted outside the surface plate 1 and between the side edges thereof. A required number of arms 4 are attached by a mounting member 8 so that there is an interval between them, and pressing bodies corresponding to the lower portions of the side frames 2 are attached to these arms 4 and the lower portions of the side frames serve as the surface plate. A side frame fixing device for a concrete formwork, characterized in that a thrusting means for pushing the side frame is supported so as to be pressed against the side edge.