JPS62888Y2 - - Google Patents

Description

[Detailed description of the invention] This invention makes it easy to separate from the block when the left and right frames are tilted to remove the left and right frames after forming the formwork for concrete blocks. The purpose is to tilt the frame.

Conventional concrete molding formwork is rotatably supported by the underframe at the lower ends of the front and rear plates of the left and right frames, and has a tilting handle attached to the top (Fig. 4), so when it is removed, it must be separated from the product and tilted. This requires a great deal of force to perform both at the same time, and since the left and right frames are tilted from the state in which they are in contact with the product, there is an inconvenience that the product may be hit and damaged during rotation.

This method eliminates such drawbacks, and by connecting the underframe and the left and right frames on which the load is placed with a tilting handle lever with a vertical interval, separation from the product and tilting of the frame can be performed separately. Moreover, it is characterized by being performed with minimal force.

An embodiment of the present invention will be explained with reference to the drawings. Fig. 1 shows a front view without the tightening device, and Fig. 2 shows a side view of the same. In the figure, 1 is a tilting handle rod, which has a general shape. Both lower ends are pivotally supported by pins 6, 6 on mounting pieces 5, 5 extending laterally from the front and rear plates 3, 4 of the underframe 2 so as to be rotatable in the left-right direction.

Further, at a position above the lower end of the tilting handle rod 1, it is connected to the lower portions of the front and rear plates of the left and right frames 7, 8 by pins 9, 9 at a distance from the lower end.

The pins 9, 9 are loosely inserted into at least one of the tilting handle rod 1 or the front and rear plates, and are not fixedly connected to each other.

Reference numeral 10 denotes an upper edge that extends above the horizontal line, and the upper edge 11 of the front and rear plates has a width greater than the width of the tilting handle rod 1.

Since the present invention has the above-mentioned configuration, when removing the mold after molding the concrete block, the tilting handle rod 1 is pulled outward, and the lower end of the handle rod 1 is pivoted on the underframe 3. It rotates because it is rotated.

Therefore, the pin 9 is inserted between the tilting handle rods 1, 1.
The left and right frames 7, 8 connected to each other are also operated in accordance with the rotation of the tilting handle rods 1, 1.

However, since pin 9 performs circular motion from the highest point, the vertical movement is minute at first;
A pin 9 is connected to the bottom of the left and right frames 7, 8, and since the formwork is placed on the underframe 3 and has considerable weight, the circular movement of the pin 9 directly connects the formworks 7, 8.
It acts on the formworks 7 and 8 as a lateral force (Fig. 3). At this time, the pin 9 is connected to the formwork 7, 8
Alternatively, since either of the handle rods 1 is loosely inserted, there is no problem in connection and movement.

If the tilting handle rod 1 is further pulled down, the movement of the pin 9 in the vertical direction increases, and the formworks 7, 8
Since it starts to shift from the underframe 3, combined with its own weight, it falls over using the pin 9 as a fulcrum.

In this case, the formworks 7 and 8 are connected only to the tilting handle rod 1 by the pin 9, but the upper edges 11 of the front and rear plates of the formworks 7 and 8 abut against the hanging rod of the tilting handle rod 1. The formworks 7 and 8 are leaning on the tilting handle rod 1 and fall as the rod 1 is tilted.

As mentioned above, the present invention does not immediately tilt from the molded state as in the past, but initially moves laterally,
Since the product is tilted after the product is separated from the formwork, the operation is smooth and can be operated with less force than conventional products that release and tilt at the same time.

Further, since the product and the formwork are completely separated and then tilted, there is no contact between the formwork and the product when the product is tilted, and no damage or deformation of the product occurs.

Furthermore, instead of attaching the handle rod directly to the formwork and pulling it to tilt it, the lower end of the tilting handle rod is pivoted on the underframe and connected to the formwork at the upper point of the support, so it can be tilted with less tension. This is a new and effective idea that allows the formwork to be removed.

[Brief explanation of the drawing]

Fig. 1 is a front view of the proposed formwork without the tightening device, Fig. 2 is a side view of the same, Fig. 3 is a front view showing the operating state, and Fig. 4 is a front view of the conventional formwork. Symbols 1 are the tilting handle rods, 2 is the underframe, 3 and 4 are the front and rear plates of the underframe, 6 and 9 are pins, and 7 and 8 are the left and right frames.

Claims (1)

[Scope of utility model registration request] The midpoint of the hanging portion of the abbreviated tilting handle rod and the lower portions of the front and rear plates of the left and right frames are pivoted without being fixed to each other, and both lower ends of the tilting handle rod are rotatable in the left-right direction relative to the underframe. It is characterized by being pivoted,
Frame tilting device for concrete block forming formwork.