JPH0554404B2 - - Google Patents

Description

Detailed Description of the Invention (Technical Field) The present invention provides a method for attaching a U-shaped gutter block, waterway wall block, etc. of a lid-hung type to the bottom of a formwork that is manufactured upside down, so that the top end of the block is This invention relates to a top molding device for molding.

(Prior art) Conventionally, the formwork used to manufacture lid-hung type U-shaped gutter blocks, waterway wall blocks, etc. upside down is made up of an underframe, an end plate, a side plate, a core, and a top molded body. The dimensions, shape, etc. of the underframe, end plate, side plate, core, and top molding were fixed for each block.

(Problem to be Solved by the Invention) However, for example, in the U-shaped gutter block cover type 1 shown in FIG. 1, there are various sizes depending on the channel width and channel depth. There are an infinite number of combinations of the three dimensions of the top width A, the cover width B, and the cover thickness (cover depth) C, depending on the size of the block, usage conditions, differences in overload, and the width of the waterway. Alternatively, it is necessary to provide a slope at the top, and there is a problem in that a formwork of a different size or shape is required each time.

(Object of the Invention) The first object of the present invention is to form a top end forming device that can configure many combinations of the three dimensions of the top end width A, lid hanging width B, and lid thickness (lid hanging depth) C. Our goal is to provide the following. A second object of the present invention is to provide a crown molding device that can accurately form a crown slope.

(Means for Solving the Problems) In order to achieve the first object, the first invention provides a method for manufacturing a U-shaped gutter block, a waterway wall block, etc. with a lid on the bottom of a formwork that is manufactured upside down. A top forming device that is mounted to mold the top end of the block includes a pair of end plates that face each other at a predetermined interval in the longitudinal direction of the block, and a pair of end plates that are attached between the end plates to form the top end of the block. a first molded block body that adjusts the top width and the lid hanging depth;
A second molded block body for adjusting the lid hanging width, and the first and second molded block bodies are detachably attached to corresponding positions on the main body. In order to achieve the second object, the second invention is to attach a lid-hung type U-shaped gutter block, waterway wall block, etc. to the bottom of a formwork manufactured upside down, and to make the top end of the block stand out. A top forming device for forming the block includes a pair of end plates facing each other at a predetermined interval in the longitudinal direction of the block, a main body attached between the end plates to form the top, and a top width and a lid hook. It is provided with a first molded block body for adjusting the depth and a second molded block body for adjusting the lid hanging width, and the first and second molded block bodies are removably attached to corresponding positions on the main body. In addition, both ends of the main body are attached to the end plate via elastic bodies.

(Function) According to the first invention, by exchanging the first and second molding blocks, the mold can be adapted to various sizes. According to the second aspect of the invention, the shortage in the longitudinal direction of the crown due to the slope of the crown can be covered by the stretching of the elastic body.

(Example) Figures 2 to 6 show the present invention and a first embodiment, in which 10 is a pair of end plates that can be opened and closed, 20 is a pair of side plates that can be opened and closed, 30 is a core device, and 40 is a pair of side plates that can be opened and closed. is attached to the bottom of the core device 30 and the above-mentioned block 1
This is a top end forming device that molds the top end portion 2 of the.

The top forming device 40 includes a pair of end plates 41 facing each other at a predetermined interval in the longitudinal direction of the block 1.
, the main body 42 for forming the top end 2 attached between the end plates 41, the top end width A and the lid hanging depth C.
It consists of a first molded block body 43 that adjusts the width B of the cover, and a second molded block body 44 that adjusts the lid hanging width B.

The end plate 41 is made of a rigid body such as metal, and has a vertical wall 42b of the main body 42 and a top plate 42 on its inner surface.
A deep fitting groove 41a made of an elastic body that fits c.
and a fitting cylinder 41b into which one side 45a of an elastic connector 45 made of rubber or the like is fitted. In addition,
46 is a vertical wall 42b and a top plate 42 in the fitting groove 41a.
This is a backing member that fits together with c to more accurately prevent leakage. The main body 42 consists of a base plate 42a, a vertical wall 42b set in the center thereof, and a top plate 42c provided on the top thereof.
A fitting cylinder 42d into which the fitting 5b is fitted is provided.
Reference numeral 42e designates a locking groove for locking a lower end portion of a second molded block body 44 on the joining side, which will be described later. The first molded block body 43 consists of a pedestal member 43a and a top member 43b that is slidably attached thereon.
The top member 43b is detachably attached to the top member 43b.
A packing member is provided on the outer periphery of. The second molded block body 44 is provided with a top plate 44a flush with the top plate 42c of the main body 42 at the upper part, and the lower end 44b on the joining side is locked in the locking groove 42e of the main body 42, and is attached to and detached from the main body 42 with a bolt 44c. Can be installed freely. Note that a packing member is also provided around the outer periphery of the top plate 44a.

Since the top molding device according to the present invention is configured as described above, the first and second block molded bodies 4
By preparing several types of molds 3 and 44 with different dimensions in advance and replacing them with the main body 42, the formwork can be adapted to many different sizes. In addition, it is possible to adjust the height of the crown forming device or add a slope to the top by installing a lifting mechanism such as a jack on the bottom side of the top forming device. Since the face plate 41 slides up and down along the inner surface of the end plate, there will be a slight lack of dimension between the main body 42 etc. and the end face plate 41, but this shortfall can be covered by the expansion of the elastic body 41a. Since packing is attached to the joints of each member, leakage can be prevented and a strong and beautiful block can be molded.

The end plate 41 and the deep fitting groove 41a may be integrally formed of a hard elastic body, and the elastic connecting body 45 may be integrally formed with the end plate 41 of a soft elastic body. In this case, the other end 45b of the elastic connector 45 only needs to fit into the fitting tube 42b.
Further, the elastic connector 45 may be a spring.

(Effects of the Invention) As explained above, according to the first invention, a lid-hung type U-shaped gutter block, waterway wall block, etc. is attached to the bottom of a formwork manufactured upside down, and the block is A top forming device for forming a top end includes a pair of end plates facing each other at a predetermined interval in the longitudinal direction of the block, a main body attached between the end plates for forming the top end, and a top end. a first molded block body that adjusts the width and lid hanging depth;
and a second molded block body for adjusting the lid hanging width, and the first and second molded block bodies are removably attached to corresponding positions of the main body, so that the first and second molded block bodies By exchanging the molds, it is possible to adapt the formwork to a wide variety of sizes. According to the second invention, since both ends of the main body are attached to the end plate via the elastic body, the shortfall in the length direction of the top due to the slope of the top can be covered by stretching the elastic body. There are advantages that can be achieved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a U-shaped gutter block, and FIGS. 2 to 6 show embodiments of the present invention.
The figure is a perspective view of the entire formwork, Figure 3 is a perspective view of the top forming device, Figure 4 is an enlarged sectional view, Figure 5 is an exploded perspective view of the top forming device, and Figure 6 is an exploded view of the main parts. FIG. 41... end plate, 42... main body, 43... first
molded block body, 44... second molded block body.

Claims (1)

[Scope of Claims] 1. A top end forming device that molds the top end of a lid-hung type U-shaped gutter block, waterway wall block, etc. by attaching it to the bottom of a formwork that is manufactured upside down. , a pair of end plates facing each other at a predetermined interval in the longitudinal direction of the block, a main body attached between the end plates to form a top end, and a first body for adjusting the top width and lid hanging depth. a molded block body, and a second molded block body for adjusting the lid hanging width, and the first and second molded block bodies are detachably attached to corresponding positions on the main body. Edge forming device. 2. In a top-forming device that molds the top end of a U-shaped gutter block, waterway wall block, etc. of a lid-hanging type by attaching it to the bottom of a formwork manufactured upside down, and molding the top end of the block, a pair of end plates that face each other at a predetermined interval, a main body that is attached between the end plates and that molds the top end, and a first molded block body that adjusts the top width and the lid hanging depth; a second molded block body for adjusting the lid hanging width, the first and second molded block bodies are removably attached to corresponding positions on the main body, and both ends of the main body are attached to the end plate. A top forming device characterized in that it is attached via an elastic body.