JPH0340572Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a frame for forming concrete products such as concrete blocks used in architecture, civil engineering work, and road construction.

[Prior Art] Concrete blocks used in architecture, civil engineering work, and road construction are mass-produced in factories using steel frame molds. The back plate and the side plates on both sides were attached via hinges so as to be openable and closable, and the wall plates were fixed to each other by bolts when the mold was closed.

Alternatively, instead of bolting,
The structure was such that the formwork was tightened using a tightening tool such as that described in Publication No. 38246.

[Problems that the invention aims to solve] However, with a frame mold structure in which each wall plate is tightened and fixed with bolts, it takes time to open and close the mold. There was a problem in that it took a lot of time just to close.

Further, in the case of using a fastener, it was only possible to tighten the formwork and remove the fastener from the formwork. Therefore, it was necessary to perform a separate work to remove the formwork from the concrete product.

[Means for solving the problems] The present invention was created in view of the above problems, and provides a frame mold for forming concrete products that can be opened and closed easily and quickly. It is structured as follows.

That is, the gist of the present invention is that side plates of the main body are installed upright on the bottom and face each other;
A box-shaped frame, which faces each other between the main body side plates and is surrounded by end plates each having one end rotatably supported on both sides of one of the main body side plates, and the other ends of both said end plates are connected; , a frame mold for forming a concrete product, comprising a link mechanism disposed along the other main body side plate, the link mechanism comprising a link member having one end fixed to the other end of one end plate; a clamp mechanism interposed between the other end of the link member and the other end of the other end plate; the link member includes a stepped portion; the clamp mechanism includes a rotatable clamp lever; When the clamp lever is rotated to one side,
The link member and the other end plate operate in a direction that reduces the distance between the link member and the other end plate, and when the clamp lever is rotated in the other direction, the link member and the other end plate operate in a direction that moves away from each other. The main body side plate is located in the movement path of the stepped portion of the link member, and when the link member moves a predetermined amount in a direction away from the other end plate, the main body side plate comes into contact with the stepped portion and moves the link member. A frame mold for forming a concrete product is characterized by having a movement prevention part that prevents movement.

[Function] In the frame mold for forming concrete products of the present invention, when the clamp lever is rotated in one direction, the distance between the link member and the other end plate is shortened, and a box-shaped frame mold is formed. For example, when concrete is poured into this frame and, after hardening, the clamp lever is rotated in the other direction, the link member is first pressed in a direction away from the other end plate. As a result, one end plate fixed to this link member is pressed in the demolding direction around the support portion with the main body side plate, and is actually demolded.

When one end plate is demolded, the link member is moved along with the demolding. When this movement reaches a predetermined amount, the step-shaped portion of the link member comes into contact with the movement blocking portion, and the movement of the link member is blocked. When the link member is prevented from moving, the clamp mechanism is pressed in a direction away from the link member, and the other end plate is pressed in the demolding direction to actually demold the mold.

Thereby, the frame mold can be tightened or removed by simply rotating the clamp lever in one direction.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

First, the perspective view in Figure 1, the top view in Figure 2, and the top view in Figure 3.
The overall structure of the frame 1 will be explained with reference to the front view in the figure and the side view in FIG. It has a box-like configuration with end plates 5 and 6 provided on both sides. Top plates 7, 8, 9, and 10 are provided in the box-shaped openings of the main body side plates 3, 4 and the end plates 5, 6, respectively, in order to increase the strength of the frame 1. In addition, side plates 11, 12, 13, 14, 15, 16, 1 are provided at the ends of the main body side plates 3, 4 and end plates 5, 6.
7 and 18 are provided, respectively. The main body side plates 3 and 4 are fixed to the bottom surface 2, while the end plates 5 and 6 are rotatably supported at one end on both sides of the main body side plates 3 and 4, respectively, and are not fixed to the bottom surface 2. The end plates 5 and 6 are provided with a clamp mechanism that is tightened and released by a rotating clamp lever. To explain the clamp mechanism, this clamp mechanism includes a clamp lever 19, a support member 20,
21, a rotating shaft 22, a shaft 23, a connecting lever 24 as a link member, and a fastening tool 25. The relationship between the members constituting these clamp mechanisms is that first, the tip of the clamp lever 19 is connected to the support member 2.
It is integrally fixed by 0. On the other hand, a support member 21 is fixed to the end plate 6 and the side plate 14 provided at the end thereof. The end of the support member 20 is rotatably supported by the support member 21 on a shaft 23, and the tip of the connecting lever 24 is supported by the support member 20 on the rotation shaft 22.
It is rotatably supported. Support members 20, 2
The connecting lever 24, which has one end supported by the clamp lever 1, is configured such that the clamp lever 19 side and the fastener 25 side are curved outward. Further, the curved portion on the clamp lever 19 side has a flat plate shape similar to the overall shape, and the curved portion on the fastener 25 side has a rod shape. The fastener 25 is fixed to the end plate 5 and the side plate 11 provided at the end thereof, and is provided on both sides of the insertion member 26 and the insertion member 26 having an insertion hole through which the rod-shaped end of the connecting lever 24 is inserted. The other end of the connecting lever 24 is inserted into the insertion hole with the nuts 27 and 28 for tightening adjustment.
It is fixed at In addition, 29, 30 shown in FIG.
Reference numerals 31 and 32 in FIG. 3 indicate hinges that adjust the opening and closing of the end plates 5 and 6, and legs that support the frame 1.

Next, we will explain how to use the above frame type.

When pouring liquid concrete, the end plates 5 and 6 of the frame mold 1 are clamped to the main body side plates 3 and 4 by a clamp mechanism. When tightening, first, when the clamp lever 19 is rotated in the direction of arrow A in FIG. 1, the support member 20 is rotated in the same direction about the shaft 23 of the support member 21. As a result, the connecting lever 24 integrated with the rotation shaft 22 of the support member 20 moves in the direction of arrow B, and the end plate 5 is tightened toward the main body side plate 4 via the insertion member 26. After that, when the end plate 5 and the main body side plate 4 are integrated and the movement of the connecting lever 24 is restricted, the support member 2
A force in the direction of arrow C acts on the end plate 6 as well, and the end plate 6 is also tightened toward the main body side plate 4 side.

In this state, liquid concrete is poured into the frame mold 1. When the concrete has hardened, the clamp lever 19 is rotated in the direction of arrow D in FIG. 5 about the shaft 23 of the support member 21 to the position shown in FIG. Then, the connecting lever 24 moves in the direction of arrow E, and the end plate 5 is released from the main body side plate 4 via the insertion member 26. When the end plate 5 is opened to a certain position, the curved part 33 curved in a step-like manner to the outside of the connecting lever 24 comes into contact with the part of the side plate 12 provided at the end of the main body side plate 4 that acts as a movement prevention part, and the end plate 5 is no longer in position. It is no longer open to the outside. Next, when the clamp lever 19 is rotated in the direction of arrow F in FIG. 6 about the shaft 23 of the support member 21 to the position shown in FIG. Therefore, the end plate 5 does not move in the direction of the arrow G, and the support member 20 integrated with the connecting lever 24 pushes the shaft 23 of the support member 21 fixed to the end plate 6 in the direction of the arrow C, thereby moving the end plate 6 towards the main body side plate. Release from 4. In this way, in two steps,
If the end plates 5 and 6 are opened, the impact is small and the concrete product is less likely to be damaged, and the concrete product can be easily taken out with the end boards 5 and 6 on both sides open. The tightening of the frame 1 can be adjusted using the nuts 2 provided on both sides of the insertion member 26.
7 and 28, the lengths of the curved portion 33 and the tightening tool 25 are adjusted, and the tightening force of the end plates 5 and 6 is adjusted.

In the frame 1 of this embodiment, the side plates 3 and 4 of the main body are formed into curved surfaces in order to form concrete blocks for the boundaries of pedestrian and roadways. Of course, this is also included in the present invention. Also, clamp lever 1
9 is provided at one location in this embodiment, but it is of course also possible to provide another clamp lever at the position of the fastener 25 and tighten the end plates 5 and 6 separately using the two clamp levers. It is included in the idea.

[Effects of the invention] As explained above, according to the framework of the invention,
Both end plates can be moved inward by simply rotating the clamp lever in one direction, and both end plates can be sequentially moved outward by simply rotating the clamp lever in the other direction. Therefore, the end plate can be completely tightened and closed to the main body side plate with a simple operation of the clamp lever, and the end plate can also be opened easily and quickly, improving the productivity of concrete products. can be improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is a top view thereof, Fig. 3 is a front view thereof, Fig. 4 is a side view thereof, and Figs. 5 and 6 are open clamp levers. FIG. 3, 4... Main body side plate, 5, 6... End plate, 19...
...Clamp lever, 24...Connection lever.

Claims (1)

[Claims for Utility Model Registration] Side plates of the main body installed on the bottom and facing each other;
A box-shaped frame, which faces each other between the main body side plates and is surrounded by end plates each having one end rotatably supported on both sides of one of the main body side plates, and the other ends of both said end plates are connected; , a link mechanism disposed along the other main body side plate, the link mechanism comprising a link member having one end fixed to the other end of one end plate; a clamp mechanism interposed between the other end of the member and the other end of the other end plate, the link member includes a stepped portion, the clamp mechanism includes a rotatable clamp lever, and the clamp When the lever is turned to one side,
The link member and the other end plate operate in a direction that reduces the distance between the link member and the other end plate, and when the clamp lever is rotated in the other direction, the link member and the other end plate operate in a direction that moves away from each other. The main body side plate is located in the movement path of the stepped portion of the link member, and when the link member moves a predetermined amount in a direction away from the other end plate, the main body side plate comes into contact with the stepped portion and moves the link member. A frame mold for forming a concrete product, characterized by having a movement prevention part that prevents movement.