JPH076349Y2 - Cement board seam connection member - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention relates to a joint connecting member of a weirboard for civil engineering and construction.

"Prior Art" As shown in Fig. 13, the nails (3) ... are fixed by attaching the connecting timbers (2) .. A large number of weir plates (1), ... Are arranged side by side while holding the space (4) by joining the end faces of each weir plate (1), and concrete is placed in the space (4).

"Problems to be solved by the invention" (1) When the concrete placed in the space between the weirs enters the seam of the weir and the concrete is attached when the weir is reused, the joint end surface of the weir The joints become rough because they do not completely adhere and a gap is created. Therefore, it takes time and effort to remove the concrete attached to the dam.

(2) Since the connecting timbers fixed to the weir board are fixed to each other with nails and the nails are pulled out when dismantling, the weir board and the connecting timber at the place where the nail is struck often breaks and becomes unusable. Further, although the connecting timber (2) is fixed to the weir board (1) with the nail (3), the weir board and the connecting timber at the place where the nail is struck tend to tear and become unusable in many cases.

(3) When assembling the weir, it is necessary for at least two workers to enter the inner and outer sides of the weir so that the joints are aligned properly and the connecting timbers are fixed to each other. It may get stuck. Further, when dismantling the weir board, it is necessary to take out all the nails that have been driven into the connecting timber.

(4) Concrete enters the gap between the joint end faces of the weir plate, and when the weir plate is dismantled, the finished surface of the gap part bulges in a convex shape, leaving joint marks and bad appearance.

"Means for Solving the Problem" A connecting surface that is inserted between the joint end faces of opposing dams and protrudes from the joint end faces to the back of the dam, and a covering surface that covers the seam on the concrete placing side of the dam. For connecting a main member having a T-shaped connection and a hole for wedge driving on the connecting surface and a hole for connecting the main member on the joining surface that joins with the connecting surface of the main member. A weir plate comprising a pair of sub-members, each having a hole, bent at an end portion of the joint surface into an L shape and in contact with a side end portion of the weir plate, and having a pressing surface for sandwiching the side end portion of the weir plate together with the covering surface. By using the seam connecting member of the above, it is possible to construct a weir board without using nails, make it easy to dismantle, and prevent concrete from adhering to the joint end surface of the weir board, and at the same time make the concrete wall surface beautiful. The purpose is to do.

"Operation" The joint end surface of the weir is built with a slight gap, and the joint surface of the main member is inserted into the gap and brought into close contact with it to cover the seam of the weir with the covering surface and project behind the weir. The joining surfaces of the sub-members are attached to both sides of the connecting surface, and the wedge driving holes are made to communicate with each other to fix the wedge driving plate.

"Embodiment" An embodiment of the present invention will be described with reference to the drawings. As shown in Figs. 1 to 11, a large number of dams (11), ... are held at intervals (arrows) for pouring concrete, In addition, a joint surface that is installed while holding a slight gap between each joint end face (11a), and inserted into the gap between the joint end faces (11a) (11a) of the opposing dams and protruding from the joint end face. (12a) and the covering surface (12b) covering the seam of the weir plate (11) are connected in a T-shape, and the holes (12c) and (12c) for driving the wedge (13) into the connecting surface (12a). To form the main member (12). The joint surface (13a) that is attached to both surfaces of the connecting surface (12a) of the main member (12) is provided with holes (13b) ... L at the end
It is bent into a shape and contacts the side edge of the weir plate (11),
Clamping surface (13c) that holds the side edge of the weir plate (11) together with b)
Consisting of a pair of sub-members (13) provided with
The wedge (14) shown in FIG. 11 is driven into the holes (12c) and (13b) communicating with each other as shown in FIG. 12, and the sub-members (13) and (13) are attached to the connecting surface (12a) of the main member (12). Attach to both sides, and
The covering surface (12b) covers the gap between the weir plates (11) to prevent concrete from entering and the covering surface (12b)
And the weir plates (11) (11) that are adjacent to each other on the clamping surface (13c) (13c)
The side end of the is fixed by pinching, and (15) is concrete (16). In addition, a large number of weirs are built in, and a flap (16) is laid horizontally (not shown).
Together with Home Thailand (registered trademark), it is the same as the conventional technology.

"Effect of device" Since the device of the present invention is constructed in this way, weir plates (11) (11)
Since the gap between them is covered with the covering surface (12b) of the main member (12), concrete does not enter the gap, and since the plate thickness of the covering surface (12b) is very thin, the placed concrete is coughed. The seams of the board (11) do not bulge and become unstructured, and the finish of the concrete wall surface is beautiful. Further, the main member (12) and the sub member (13) can be easily constructed by a single worker by using the wedge (14) and can be easily disassembled. Since concrete is not attached to the joint end surface (11a) of the weir after dismantling, it can be reused immediately. Further, unlike the conventional weir plate, the connecting timbers are not fixed to each other by using nails to construct the formwork, so that the weir plate can be quickly constructed and disassembled, and the timber and the weir plate can be connected. The cuffs can be used for a long period of time without the nailing part of the plate or the nailing parts of the connecting timbers being torn and damaged and becoming unusable. Further, the height of the joining surface (13a) of the sub-member (13) corresponding to the height of the connecting surface (12b) of the main member (12) and the height can be designed to a desired height, and the height of the covering surface (12b) can be designed. Width, clamping surface (1
The width of 3a) can also be designed as desired.

Thus, the present invention is a useful device that has a simple structure, is easy to manufacture, can be mass-produced, and is inexpensive.

[Brief description of drawings]

FIG. 1 is a perspective view showing how to attach a joint connecting member according to the present invention, FIG. 2 is a front view showing a main member of the joint connecting members, FIG. 3 is a rear view of the same, and FIG. 4 is a left side thereof. 5 and 5 are plan views of the same, FIG. 6 is a front view showing a sub member of the seam connecting member, FIG. 7 is a rear view of the same, FIG. 8 is a left side view of the same, and FIG. 9 is a plan view of the same. 10 is a plan view of the wedge, FIG. 11 is a front view of the same,
FIG. 12 is a partially cutaway plan view showing an embodiment of the present invention, FIG.
The figure is a perspective view showing how to construct a conventional weir board. (11) …… Weir plate, (11a) …… Joint end face of weir plate (12) …… Main member, (12a) …… Coupling surface, (12b) …… Coating surface (12c) (13b) …… Hole , (13) …… Secondary member, (13a)…
… Joining surface (13c) …… Clamping surface, (14) …… Wedge

Claims (1)

[Scope of utility model registration request] 1. A connecting surface which is inserted between the joint end faces of opposing weir plates and which protrudes from the joint end faces to the rear of the weir plate.
T with the covering surface covering the seam on the concrete placing side of the weir board.
A main member that is connected in a letter shape and has a hole for wedge driving on the connecting surface, and a hole for wedge driving that communicates with the hole provided on the main member on the joint surface that joins with the connecting surface of the main member. Provided and
A joint connecting member of a weir plate, which is formed by bending an end portion of the joint surface into an L shape and is in contact with a side end portion of the weir plate, and a pair of sub-members provided with a pressing surface for sandwiching the side end portion of the weir plate together with the covering surface. .