JPH0355710Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a concrete formwork assembly device that assembles concrete formwork using mesh formwork.

(Prior Art) As shown in FIG. 5, a conventional concrete form assembly apparatus using this type of mesh formwork is constructed by attaching and tensioning the mesh formwork A to a frame.

After that, in the same way as when assembling a conventional plywood formwork, after screwing the washer D to the base end of the end screw of the separator C and inserting the end screw into the through hole of the mesh formwork A, the end of the separator C is screwed in. Screw the proximal end screw hole of the tightening rod into the screw, and sandwich the mesh formwork A between the washer D of the separator and the tightening rod.

Next, place the pair of horizontal beams over the tightening rod and apply them to the outside surface of the flame roller, fit the presser washer to the end screw of the tightening rod, and screw in the nut.
The concrete formwork is assembled by pressing and clamping the frame ro with mesh formwork A and the side beams using washers D and presser washers T.

(Problems to be Solved by the Invention) The above-mentioned conventional concrete formwork assembly apparatus has the following problems: (1) Since separators and clamping rods are used, manufacturing and formwork assembly operations are time-consuming and costly.

(2) Since the washer of the separator is fixed at a fixed position on the separator, a separator with a length corresponding to the thickness of the concrete base is required, which is inconvenient in manufacturing and handling.

There are problems with these points.

(Means for Solving the Problems) Therefore, in order to solve the above problems, this invention aims to connect the proximal screw 2 of the separator 1 to the built-in 3.
Screw into the screw hole 5 of the fixture 4 and insert a washer 6 in the middle part.
The tip screw 7 screwed together is inserted into the mesh of the mesh formwork 8, and horizontal members 10, 10 are placed on the outside of the vertical strips 9 placed on the outer surface of the mesh form 8 at the top and bottom of the separator 1. In combination, the vertical grooves 12 with open bottoms on both sides of the inverted U-shaped clips 11 are connected to the separator 1.
The clamping tool 11 is fitted onto the horizontal members 10, 10 and placed thereon, and the clamping tool 11 is clamped by the washer 6 and the nut 13 screwed onto the tip of the tip screw 7 of the separator 1. Assemble the concrete formwork.

(Example) To explain the structure of an embodiment of this invention shown in Figs. 1 to 3, 1 is a separator, screws 2 and 7 are provided at both ends of the separator, and a water stopper is provided in the middle part. Fit the rubber ring 14. 3 is a weir plate built around the excavated surface of a basement etc., 4 is a fixing device,
A nut 16 is fixed to the center of a rectangular plate 15 to provide a screw hole 5, and nail holes 17 are bored at the four corners.
18 is a nail for fixing the fixture 4 ; 6 is a washer of a plate nut screwed into the middle part of the end screw 7 of the separator 1; 8 is a mesh formwork such as a lath; and 9 is placed on the outer surface of the mesh formwork 8. Vertical flaps of round pipes, 10, 10 are a pair of horizontal flaps of round pipes to be assembled on the outside of vertical flaps 9, 11 is an inverted U-shaped clip, and in the center of each side piece is a A vertical groove 12 is provided which is open at the bottom. 1
3 is a flanged nut, and 19 is a concrete body.

Next, the construction method will be explained. A nail 1 is inserted into the nail hole 17 of the fixture 4 at an appropriate location on the side surface of the weir board 3.
8 to secure it.

On the other hand, although not shown, after suspending the mesh formwork 8 at a predetermined position, the tip screw 7 of the separator 1 with washer 6 is inserted into the mesh of the mesh formwork 8, and the base end screw 2 is connected to the screw of the fixture 4 . Screw into hole 5.

Next, after attaching the vertical flaps 9 to the outer surface of the mesh formwork 8, the vertical flaps 9 are installed at the top and bottom of the separator 1.
After that, the vertical grooves 12 on both sides of the clip 11 are connected to the separator 1.
The clip 11 is fitted onto the horizontal cross members 10, 10 and placed on the upper horizontal cross member 10.

Therefore, after rotating the washer 6 and applying it to the inner surface of the clamp 11, the nut 13 is screwed into the tip screw 7 of the separator 1 and the clamp 11 is clamped between the washer 6 and the nut 13. Can be assembled.

Therefore, if concrete is then poured into the space between the weir plate 3 and the mesh formwork 8, the concrete body 19 is constructed.

In addition, when using a square pipe instead of the above-mentioned round pipe for the side pieces 10, 10, if the clip 11 is formed in a shape to fit on the side pieces 10, 10, it will work in the same way as above. do.

Another embodiment of this invention shown in FIG. 4 shows a case where the structure is an existing concrete wall.

In this case, anchor attachment holes 20 are drilled at appropriate locations on the concrete wall 3a, and
When the anchor 4a of the fixing device is driven in and fixed, the base end screw 2 of the separator 1 is screwed into the screw hole of the anchor 4a , and then the concrete form is assembled by operating in the same manner as above. I can do it.

(Effects of the invention) The concrete form assembly device of this invention has the following remarkable effects.

(1) The installation position of the mesh formwork can be changed by rotating and moving the washer screwed onto the end screw of the separator, so the separator can be used for multiple purposes regardless of the thickness of the concrete base. It is useful for work.

(2) There are vertical grooves that are open at the bottom on both sides of the inverted U-shaped clip, so just fit the vertical grooves on both sides into the separator, fit the clip into the upper and lower horizontal members, and drop it in. Then, the clips are fitted into the upper and lower side beams and placed on top of the upper side beams.
Even if there is an error in the mutual relationship between the separator and the upper and lower crosspieces, the clips can always be easily and securely fitted and attached to the upper and lower crosspieces.

(3) Fix the horizontal beams to the separator via clamps, and use the horizontal beams to support the outer surface of the mesh formwork through the vertical beams, and tighten and clamp the formwork as in the conventional method. Therefore, when concrete is poured, it is possible to accurately support the mesh formwork and construct a concrete body.

(4) It has a small number of parts, has a simple structure, can be manufactured easily and inexpensively, and is easy to assemble and has good workability.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view of a concrete formwork according to an embodiment of this invention, Fig. 2 is an enlarged front view of the main parts of the same, Fig. 3 is an exploded slope view of the formwork support fittings,
FIG. 4 is a side sectional view of a separator fixing part according to another embodiment of this invention, and FIG. 5 is a side sectional view of a conventional concrete formwork. 1...Separator, 2...Proximal end screw, 3...
Building structure, 4 ...Fixing tool, 5...Screw hole, 6...Washer, 7...Tip screw, 8...Mesh formwork, 9...Vertical shingle material, 10...Horizontal shingle material, 11...Inverted U-shaped clip, 12...Vertical groove, 13...Nut.

Claims (1)

[Scope of utility model registration request] Screw the proximal end screw of the separator into the screw hole of the fixing device of the building, insert the tip screw with a washer screwed into the middle part into the mesh of the mesh formwork, and place it on the outer surface of the mesh formwork. On the outside of the flap material, combine the horizontal flap materials at the top and bottom of the separator, fit the vertical grooves with the lower sides of both sides of the inverted U-shaped clips open into the separator, and then attach the clips to the upper and lower horizontal flap materials. A concrete form assembly device in which a clamping tool is held between a nut and a washer that are fitted onto the separator and placed on the distal end of the separator's distal end screw.