JP3019694U - Panels for surface formation of concrete foundations - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to easily form ventilation holes or piping holes in the panel for forming the surface of the concrete foundation that does not require the dismantling work of the temporary frame and the waiting for hardening of the fresh concrete. it can. [Structure] A ventilation port forming recess 2 is formed by recessing the concrete panel 1 from the front surface 3 toward the back surface 4 in a substantially rectangular parallelepiped shape, leaving a punching thickness 5 between the surface 3 and the back surface 3. On the inner surface 7 of the ventilation port forming recess 2, the pipe forming holes 6 and 6 are recessed in a circular shape toward the back surface 4 side and a punching wall thickness 8 is left between the recess 4 and the back surface 4. About half of the thickness of the panel 1 is left on both ends of the concrete panel 1, and one end side is from the surface 3,
The other end side is cut out from the back surface 4 in an L-shaped cross section to form cutout connecting surfaces 9, 9. Heavy contact surface 1 inside the cutout connecting surface 9
The connecting bolt insertion holes 11 and 11 are drilled in an oval shape.
Assembling bolt insertion holes 12, 12 penetrating from the front surface 3 side to the rear surface 4 side are formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a panel for forming a surface of a concrete foundation in a building.

[0002]

[Prior art]

 Conventionally, in the case of wooden foundations and other basic construction, all plate frames are assembled, concrete is poured into the intervals of the temporary frames arranged on the left and right at a later date, the concrete frames are waited for the concrete to harden, and the assembled temporary frames are dismantled after 3 to 4 days. Dismantled temporary frames and incidental materials are transported to the material warehouse by the vehicle and other transportation equipment in order to arrange them at the site and remove them outside the site, and backfilling work after material removal and on-site maintenance are completed. In addition, since the work of flattening the backfill foundation is done with mortar, it usually takes 7 to 8 days. For this reason, it was devised to assemble and remove the temporary frame, which requires a great deal of labor and time, and to eliminate the waste of 3-4 days waiting for the concrete to harden in the middle. For example, as in the case of the conventional temporary framework, a pair of symmetrical concrete plates on the left and right sides are erected so as to face each other via a mold clamping separator (see, for example, Japanese Utility Model Publication No. Sho 55-126354). reference)

Alternatively, wire mesh is embedded in concrete panels to be erected on the left and right sides, and L-shaped notched connecting portions are formed at both ends and concrete inflow grooves having a substantially vertical cross section are formed on the inner surface. A panel for forming a surface of a concrete foundation, which enhances convenience and is reinforced, is known. (See, for example, Japanese Utility Model Laid-Open No. 62-143756).

[0004]

[Problems to be solved by the device]

 With the conventional technology, the work of assembling and removing the temporary frame, which required a lot of labor and time, can be eliminated, and the concrete foundation work can proceed without waiting for the hardening period of the concrete. On the other hand, it has a problem that it cannot be used as a panel for forming a surface of a concrete foundation at a piping portion where it is necessary to perforate a ventilation port, or through which a water supply / drain pipe or a gas pipe must be passed. The present invention has been made in view of the above problems of the conventional technology, and the purpose thereof is to easily install a ventilation port, a water supply / drainage pipe, or a gas pipe as necessary. The purpose of the present invention is to provide a convenient concrete foundation surface forming panel that can be used by making desired holes at a construction site.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the surface forming panel of the concrete foundation according to the present invention is made of concrete to form a concrete panel in a substantially rectangular plate shape, and is dented in a rectangular parallelepiped direction from one surface to the back surface side. The ventilation hole forming recess formed by leaving a punching thickness between the back surface side and the back surface side, and the inner surface of the ventilation opening forming recess is further circularly recessed toward the back surface side to form a punching thickness between the back surface side and the back surface side. The left and right ends of the concrete panel are provided with the remaining holes for pipe formation. One is cut from the front side to the back side, and the other is cut from the back side to the front side in the reverse direction with an L-shaped cross section. A cutout connecting surface is formed, an oval connecting bolt insertion hole is formed in the cutout connecting surface, and an assembling bolt insertion hole is formed at three equal positions in the longitudinal direction of the concrete panel. Vertical on the inside of the flannel Concrete inflow groove surface substantially triangular is obtained by engraved longitudinally.

[0006]

[Action]

 A hole can be formed by smashing the punched thick part of the pipe forming hole with a chisel or the like, and a vent can be formed by breaking the punched thick part of the ventilation hole forming recess. Then, as shown in FIG. 4, the concrete panels are held on the left and right sides of the cloth foundation A so as to face the desired concrete foundation width (in this case, a space adjusting piece B made of concrete, for example, is inserted between the left and right concrete panels. It is desirable to insert the assembly bolts into the insertion holes that face each other, and tighten and fix them.

Next, while sequentially assembling on the cloth foundation A in the above-mentioned configuration, for example, a notch connecting surface that is cut away from the rear surface side of the left adjacent concrete panel toward the front surface side, and the right side adjacent front surface side to the rear surface side. Butt the connection surface of the notch toward and make a heavy contact, and insert the connection bolt into the insertion hole of the connection bolt and tighten it.The left and right ends of the adjacent concrete panels are connected sequentially and face each other with the desired concrete foundation width. After connecting and assembling concrete panels on the cloth foundation A on which the connecting panel surface is formed, the mortars C and C for fixing the panels are appropriately applied to the outer sides of the bases of the left and right panels, and further firmly fixed. After filling the inside of the drilled piping hole and ventilation hole with filling material D as appropriate to prevent concrete from flowing in, fresh concrete E is placed between the left and right concrete panels. In addition to quickly filling the ground up and down, it is possible to carry out backfill work up to the F part by backfilling sand at the same time.

[0008]

【Example】

 Examples will be described with reference to the drawings. 1 to 4, a concrete panel 1 forming a surface forming panel of a concrete foundation is formed of a concrete material in a substantially rectangular plate shape. The ventilation port forming recess 2 is formed in a central position in the longitudinal direction of the concrete panel 1 so as to be recessed in a substantially rectangular shape from the front surface 3 toward the back surface 4 side and leave a punched wall thickness 5 between the back surface 3 and the recess. In this case, for example, it is preferable that the size of the ventilation hole forming recess 2 is vertical × horizontal = 220 mm × 420 mm, and the thickness of the punching thickness 5 is about 10 mm.

The pipe forming holes 6 and 6 are formed in the inner surface 7 of the ventilation hole forming recess 2 so as to be circularly recessed toward the back surface 4 side and leave a punched wall thickness 8 between them and the back surface 4. In this case, it is preferable that the diameter of the pipe forming hole 6 is about 100 mm and the thickness of the punching wall thickness 8 is about 5 mm. The cutout connecting surfaces 9 and 9 have one side of the contact surface 10 formed by the surfaces left inside the cutout in an L-shaped cross section leaving about 1/2 of the thickness of the concrete panel 1 at both ends of the concrete panel 1. As for the notch connecting surface 9 on the one end side, the notch connecting surface 9 on the other end side from the front surface 3 side is cut out from the rear surface 4 side in an L-shaped cross section. The connecting bolt insertion holes 11, 11 on one end side are penetratingly formed in an elliptical shape from the heavy contact surface 10 toward the front surface 3 side, and the other connecting bolt insertion holes 11 are elliptical from the heavy contact surface 10 toward the rear surface 4. The assembling bolt insertion holes 12 and 12 are bored at substantially three equal positions in the longitudinal direction of the concrete panel 1 from the front surface 3 side toward the rear surface 4. The concrete inflow grooves 13 and 13 are engraved on the inner surface side of the concrete panel 1 so as to be recessed laterally in the left and right directions in a substantially triangular cross section.

[0010]

[Effect of device]

 As described above, when the present invention is implemented, when a hole for piping is needed or when a ventilation port is needed, it is possible to easily punch a hole by punching out a thick part of a necessary part on site. A hole for piping or a ventilation port can be formed in the concrete panel, and the height of the fixed position of the drilled hole can be adjusted by vertically shifting the elliptical connecting bolt insertion hole during assembly. After that, the concrete panels are simply connected laterally on the cloth foundation and assembled facing each other at regular intervals. Since it is possible to carry out the work of leveling up in the sky and backfilling the cloth foundation with earth and sand at the same time, it is possible to greatly reduce the number of days that required 7 to 8 days, including waiting for curing, to 2-3 days. Since the temporary frame is not used for the work, all the work such as dismantling of the temporary frame and outside removal processing including waste materials is eliminated, and the material warehouse for organizing incidental materials is also unnecessary, shortening the construction period and saving labor. It is a device that contributes greatly and can reduce labor costs, transportation costs, temporary costs, and other costs such as inventory space.

[Brief description of drawings]

FIG. 1 is a perspective view of a surface forming panel of a concrete foundation.

FIG. 2 is a cross-sectional view of a surface forming panel of a concrete foundation.

FIG. 3 is a left side view of a panel for forming a surface of a concrete foundation.

FIG. 4 is a diagram showing a usage mode of a panel for forming a surface of a concrete foundation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete panel 2 Vent hole forming depression 3 Front surface 4 Back surface 5 Punching wall thickness 6 Piping hole 7 Inner surface 8 Punching wall thickness 9 Notch connecting surface 10 Heavy contact surface 11 Connecting bolt insertion hole 12 Assembling bolt insertion hole 13 Concrete inflow groove 14 Connecting bolt 15 Assembly bolt

Claims (1)

[Scope of utility model registration request] 1. A concrete panel 1 formed in the shape of a substantially rectangular parallelepiped is recessed in a substantially rectangular shape from the front surface 3 toward the rear surface 4 side at a central position in the longitudinal direction and punched with a thickness 5 between the rear surface 4 and the surface. And the ventilation hole forming recess 2 which is recessed to leave the inner surface 7 of the ventilation hole forming recess 2 in a circular shape toward the rear surface 4 side, and a punching thickness 8 is left between the rear surface 4 to form a circular shape. The pipe forming holes 6 and 6 and about 1/2 of the thickness of the panel 1 are left at both ends of the concrete panel 1, and one end side is cut out from the front surface 3 and the other end side is cut out from the back surface 4 in an L-shaped cross section inside. Notch connecting surfaces 9 and 9 in which a heavy contact surface 10 is formed, and a heavy contact surface 1
Connecting bolt insertion holes 11, 11 formed in an oval shape in 0,
A panel for forming a surface of a concrete foundation in which assembly bolt insertion holes 12, 12 penetrating from the front surface 3 side to the rear surface 4 side are provided.