JPH0410940B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a block stacking formwork structure in which decorative blocks (including tiles) on the wall surface are also used as concrete formwork.

(Prior art and its problems) There are two methods for attaching decorative blocks, etc. to the wall surface: a post-installation method in which the blocks are attached with mortar to the surface of the concrete wall that has been constructed, and a method in which the blocks are attached to the inside of the concrete form board. A direct attachment method is known in which blocks, etc. are temporarily fixed with adhesive tape or the like, and then the concrete set up inside the formwork and the blocks, etc. are integrally joined.

Compared to the post-installation method, the direct installation method significantly saves labor.
Recently, the direct bonding method has been adopted in most cases because it allows for rationalization, but the conventional direct bonding method involves temporarily fixing blocks, etc. to the inside of the general concrete formwork and the formwork board. is required, so a significant cost increase is inevitable.

(Means for Solving the Problems) In order to solve the problems in the conventional direct mounting method as described above, the present invention proposes a formwork structure in which stacked blocks, etc. can also be used as concrete formwork. Its feature is that abutting seats are arranged on both the inside and outside of the joint intersection of the blocks that are stacked to serve as formwork, and the screw shaft portion of one end of the separator is screwed into the inner butting seats, and the outer butting seats are connected to the inner butting seats. A fastening bolt passed through the seat is screwed into the inner abutment seat, and at least one of the inner and outer abutment seats has a T-shaped or cross-shaped joint width regulating protrusion protruding therefrom; This joint width regulating protrusion is held between blocks located around the joint intersection position.

(Embodiment) An embodiment of the present invention will be described below based on the attached illustrative drawings. As shown in FIG. As shown in FIG. 2, vertical rows can be stacked in a staggered manner so that the joint intersections 3 form a T-shape. The blocks 1 stacked in this way are integrally engaged with the surface of the concrete wall 4 to be constructed as shown in Fig. 3, but between the blocks 1 there are formed joint grooves 5 which are recessed into the block surface. Ru.

4 and 5 show the abutment seat 6 used. As shown in the figure, the contact seat 6 is made of plastic with a metal cylindrical insert 8 having a through-screw hole 7 embedded integrally in the center, and has a positioning flange 9 at one end. T whose intersection point passes through the center of the flange part 9 on the surface of 9
A joint width regulating protrusion 10 of the mold is integrally protruded, and an opening 11 concentric with the through screw hole 7 is formed at the intersection of the protrusion 10.

As shown in FIG. 6, the abutment seat 6 has one end connected to a concrete formwork 12 vertically erected at a predetermined position in a conventional manner, and the other end of the separator 13 is connected to a threaded shaft portion 13a through a threaded shaft portion 13a. The inner half of the hole 7 is used for screw-fitting, and a joint width regulating protrusion is provided inside the cross-shaped joint intersection 2 of the blocks 1 which are stacked in a row vertically and horizontally as shown in FIGS. 1 and 7, for example. 10 is sandwiched between the blocks 1 located around the joint intersection 2, and the flange portion 9 is arranged so as to be in contact with the inner surface of the block 1. A flat plate-like abutment seat 14 is placed on the outside of the cross-shaped joint intersection 2 of the block 1, and a fastening bolt 15 inserted from the outside into the central through hole 14a of the abutment seat 6 is inserted into the opening 11 of the abutment seat 6. The block 1 around the cruciform joint intersection 2 is clamped and fixed by both the inner and outer abutment seats 6 and 14 by screw-fitting it into the outer half of the through-screw hole 7.

As described above, by stacking the blocks 1 in a line vertically and horizontally and connecting the joint intersections 2 of the blocks 1 to the separator 13 with the inner and outer abutment seats 6, 14 and the fastening bolts 15, each block 1 is placed between the adjacent blocks 1. It can be supported in the form of a vertical formwork plate parallel to the concrete formwork 12 while ensuring a joint gap 16 of a predetermined width. After this, concrete is poured between the concrete formwork 12 and the stacked block wall, but in order to prevent the concrete to be poured from flowing out from the joint gaps 16 between each block 1, the blocks are placed as shown in FIG. When stacking blocks 1, there is a gap 16 for joints between each block 1.
A filling material 19 for forming a joint groove made of an elastic material such as rubber or plastic stick, which can be filled with mortar 18 so as to form a joint groove 5 therein, or can be removed later as shown in FIG. can be sandwiched within the joint gap 16.

Once the poured concrete has hardened, the concrete formwork 12 is dismantled and removed as shown in FIG. 10, and the clean bolts 15 and outer pads 14 are removed, thereby fixing the decorative block 1 to the surface. Concrete wall 4 is completed. Note that a hole 20 remains after the fastening bolt 15 is removed, but this hole 20 can be filled with mortar or the like if necessary.

In the above embodiment, the abutment seat 6 having the joint width regulating protrusion 10 is arranged inside the block joint intersection 2, but the abutment seat 6 may be arranged outside the block joint intersection 2 as shown in FIG. You can also do it. In this case, the through screw 7 of the abutment seat 6 is not necessary, and it is sufficient to simply form a through hole 21 in the center through which the fastening bolt 15 can pass. Further, the abutment seat 22 disposed inside requires a through screw hole 23 for screwing together both the separator 13 and the fastening bolt 15. Of course, it is also possible to use the abutment seat 6 provided with the joint width regulating protrusions 10 on both the inner and outer sides of the block joint intersection 2 as described above.

In addition, when placing the butt seat 6 at each cross-shaped joint intersection 2, the direction of the T-shaped joint width regulating protrusion 10 is unified in one direction, either up, down, left, or right, so that it can be used for the joints around all the blocks 1. The gap 16 can be restricted to the width of the protrusion 10. Of course, if the joint intersection 2 is cross-shaped like this, the fourth
It is also possible to use a contact seat 6 having a cross-shaped joint width regulating protrusion 17, as shown by imaginary lines in the drawings and FIG. 5, respectively. However, as mentioned above, T
If the abutment seat 6 has a protrusion 10 for regulating the joint width in the shape of the block, the abutment seat 6 can also be used when stacking the blocks 1 so that the joint intersection 3 forms a T-shape as shown in FIG. This is preferable because it allows you to

(Operations and Effects of the Invention) According to the block stacking formwork structure of the present invention as in the above embodiment, each joint intersection position of the blocks stacked to be used as a formwork is controlled by using a pair of inner and outer butt seats and fastening bolts. By joining the blocks to the separator, the stacked blocks can be used as concrete formwork.
It is possible to significantly reduce costs by omitting the concrete formwork and the means for temporarily fixing blocks inside the formwork, which are required in the conventional direct installation process. Furthermore, the joint width between stacked blocks can be regulated to a constant width by the joint width regulating protrusion protruding from the abutment seat.

[Brief explanation of drawings]

Figures 1 and 2 are front views showing how the blocks are piled up, Figure 3 is a vertical side view showing the concrete wall with decorative blocks to be constructed, Figure 4 is a perspective view of the base used, and Figure 5. 6 is a longitudinal sectional side view of the same part, Fig. 6 is a longitudinal sectional side view of the assembled formwork, Fig. 7 is a longitudinal sectional front view of the same part, and Figs. 8 and 9 are
10 is a vertical side view showing the state after dismantling the formwork, and FIG. 11 is a vertical side view showing another embodiment. 1...Block, 2...Cross joint intersection, 3...
...T-shaped joint intersection, 4... Concrete wall, 5...
Grasp groove, 6, 14, 22...Abutment seat, 7, 23...
...Threaded through hole, 9...Flange part, 10...T-shaped joint width regulating protrusion, 11...Opening, 12...Concrete formwork, 13...Separator, 15...
Fastening bolt, 16...Gap for joint, 17...Protrusion for regulating cross-shaped joint width, 18...Mortar, 19...
...Filling material for forming grooves.

Claims (1)

[Claims] 1. Arrangement pads on both the inside and outside of the joint intersection of the blocks to be stacked to serve as the formwork, and connect the threaded shaft portion of one end of the separator to the inner pad by screwing, and attach a fastening bolt that passes through the outer pad. A T-shaped or cross-shaped joint width regulating protrusion is provided on at least one of the inner and outer abutment seats by screw fitting to the inner abutment seat. Block stacked formwork structure sandwiched by blocks located around the intersection point.