JPH08184183A - Slag leakage preventing device for lower part of pillar form and wall form - Google Patents

Abstract

PURPOSE: To provide a slag preventing device, which can securely seal between the surface of a concrete floor and the lower end surface of a form panel so as to securely prevent the leak of concrete from the lower end of a pillar form and a wall form and which can be easily provided without skill and which can improve the working efficiency and which has the excellent profitability. CONSTITUTION: A step fixing base material A is formed of a horizontal part A1 and a vertical part A2, and the vertical part A2 of the step fixing base material A is provided with a shutter housing groove 1. A shutter 6 is installed in the shutter housing groove 1 freely to be slid in the vertical direction, and a supporting leg is fixed to the horizontal part A1, and a fitting hole 10 is drilled in the horizontal part A1. Length of the supporting leg can be adjusted, and a robber packing 8 is fixed to the lower end of the shutter 6. Between the lower end surface of a form panel B and the surface of a concrete floor C is sealed by the vertical part A2, the shutter 6 and the rubber packing 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a pillar formwork or a wall formwork when placing concrete on a pillar formwork or a wall formwork to be assembled when constructing a concrete structure. The present invention relates to an anti-loosening device in the lower part of a pillar formwork or a wall formwork, which can surely prevent concrete from leaking from the lower end part of the.

[0002]

2. Description of the Related Art Conventionally, when assembling a pillar formwork or a wall formwork,
Fix the foot-fixing pier to the surface of the concrete floor slab. Next, the formwork panel is placed on the foot-fixing barge and nailed to assemble the pillar formwork or the wall formwork.

[0003]

However, in the conventional means as described above, since there are some irregularities on the surface of the concrete floor slab, there is a considerable amount of unevenness between the surface of the concrete floor slab and the foot-fixing pier. In addition, there is a possibility that a gap may be formed between the foot-fixing splint and the form panel, and the pouring concrete may leak from the gap. In the gap between the concrete floor slab surface and the foot-fixing pier or between the foot-fixing pier and the formwork panel, an appropriate thin plate-like adjusting material is used to fill the gap. The material is used by sandwiching it between the concrete floor slab surface and the foot-fixing pier, or between the foot-fixing pier and the formwork panel.
Since the shape and size of the gap are not constant, considerable labor is required, skill is required, the work efficiency is low, and the economy is low.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention was created to solve the above-mentioned difficulties and the like.
In the described anti-loosening device S, a horizontal portion A1 is placed so that the lower end surface of the formwork panel B is in close contact, and a vertical portion A2 whose surface is substantially flush with the surface of the formwork panel B. A foot-fixing base material A having a substantially inverted L shape is formed on the side surface of the foot-fixing base material. The shutter 6 is mounted so that the shutter housing groove 1 can slide up and down, and the supporting leg 2 whose lower end abuts on the surface of the concrete floor slab C is fixed to the horizontal portion A1. , A bottom portion of which is provided with a mounting hole 10 through which an embedding bolt 15 embedded in a concrete floor slab C can be inserted, the length of the support leg 2 can be adjusted, and the foot fixing base material A is attached to the concrete floor slab C. It is configured so that it can be supported at any position above and Fixing a rubber packing 8 which is pressed against the concrete slab C surface -6 lower end, form panel B
Between the lower end surface and the surface of the concrete floor slab C, the vertical portion A2 of the foot-fixing base material A, the shutter 6, and the rubber packing 8
We have adopted a means that can be closed with and.

Further, in the anti-loosening device S according to the second aspect, the shutter lever 7 is fixed to the shutter 6 and the shutter lever 7 is inserted into the long hole 9 provided in the vertical portion A2 of the foot fixing base material A. , Means for forcibly sliding the shutter 6 up and down by the shutter lever 7 is adopted.

[0006]

In the anti-loosening device S according to the first aspect of the present invention, the foot fixing base material A has a substantially inverted L-shaped side surface, and the horizontal portion A1 has the lower end surface of the form panel B. The vertical portions A2 are placed in close contact with each other, and the surface of the vertical portion A2 is substantially flush with the surface of the form panel B. Further, a shutter 6 is attached to the vertical portion A2 so as to fit in the shutter housing groove 1 having an opening at the bottom.
Slide up and down freely. Further, a rubber packing 8 is fixed to the lower end of the shutter 6, and the rubber packing 8
Is pressed against the surface of the concrete floor slab C to reliably close the space between the lower end of the shutter 6 and the surface of the concrete floor slab C. The support leg 2 is fixed to the horizontal portion A1,
The lower ends of the support legs 2 are in contact with the surface of the concrete floor slab C to support the foot fixing base material A above the concrete floor slab C. Moreover, the length of the support leg 2 can be adjusted, and supports the foot fixing base material A at an arbitrary position (height) above the concrete floor slab C. Then, a mounting hole 10 is bored in the horizontal portion A1, and an embedding bolt 15 whose lower portion is embedded in the concrete floor slab C can be inserted into the mounting hole 10 and is screwed to the embedding bolt 15. The horizontal portion A1 is fixed to the embedding bolt 15 via the nut 16 that is provided. Then, the bottom surface of the formwork panel B and the concrete floor slab C
The space between the surface and the surface is closed by the vertical portion A2 of the foot-fixing base material A, the shutter 6, and the rubber packing 8.

Further, in the anti-loosening device S according to claim 2, the shutter lever 7 is fixed to the shutter 6 and the long hole 9 provided in the vertical portion A2 of the foot fixing base material A.
The shutter 6 is forced to slide up and down by the vertical movement of the shutter lever 7.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on illustrated examples.
In the figure, S is a non-stick stopper of the present invention, which can surely prevent concrete from leaking from the gap between the lower end of the pillar formwork or the wall formwork and the surface of the concrete floor slab C when pouring concrete. The device is shown, and this anti-loosening device S is a horizontal portion A1 on which the lower end surface of the formwork panel B is placed in close contact.
And a vertical portion A2 whose surface is substantially flush with the surface of the form panel B to form an appropriate metal foot-fixing base material A having a substantially inverted L-shaped side surface. In the vertical part A2,
The base material A for fixing the foot into the shutter housing groove 1 having an opening at the bottom
Is provided along the longitudinal direction of the above, and a substantially strip-shaped shutter 6 is mounted so that this shutter housing groove 1 can slide up and down, and the lower end of the horizontal portion A1 has a concrete floor slab C surface. The support leg 2 which is in contact with the concrete floor slab is fixed, and a mounting hole 10 through which the embedded bolt 15 whose lower portion is embedded in the concrete floor slab C can be inserted is formed. The rubber packing 8 to be fixed, the support leg 2 and the embedded bolt 1
Using the nut 16 that is screwed to the base 5, the foot-fixing base material A
Can be supported above the concrete floor slab C, and between the bottom surface of the form panel B and the surface of the concrete floor slab C,
The vertical portion A2 of the foot fixing base material A, the shutter 6, and the rubber packing 8 can be closed. Moreover, the length of the supporting leg 2 can be adjusted, and the foot fixing base material A
Can be supported at any position above the concrete floor slab C.

The foot-fixing base material A is constructed by fixing a mold material having a substantially inverted L-shaped vertical cross section and an appropriate metal plate which is bent in a substantially inverted L-shaped vertical cross-section, and is provided on the horizontal portion of the mold material. The horizontal portion of the metal plate is superposed on the upper portion to form the horizontal portion A1, and the vertical portion of the mold member and the vertical portion of the metal plate are separated by a predetermined distance (the same distance as the thickness of the shutter 6) so that the shutter housing groove 1 is provided. ) The vertical portion A2 is formed in a separated state.

The supporting leg 2 is a horizontal portion A1 of the foot-fixing base material A.
A leg base 3 having a female screw hole fixed to a lower surface portion, and a leg bolt 4 screwed into the female screw hole of the leg base 3 and having a lower end surface portion thereof abutting on the surface of the concrete floor slab C.
And a locking nut 5 which is screwed to the leg bolt 4 and abuts on the lower end surface of the support leg 2, and the length of the leg bolt 4 can be freely adjusted by rotating the leg bolt 4. Has been done.

The shutter 6 is accommodated in the shutter accommodating groove 1 provided in the vertical portion A2 of the foot-fixing base material A, and
The lower portion of the vertical portion A2 is configured so as to project downward from the lower end thereof. Reference numeral 7 in the drawing denotes a shutter lever that is fixed to the shutter 6 and is inserted into a long hole 9 provided in the vertical portion A2 of the foot fixing base material A. The shutter lever 7 forcibly moves the shutter 6 up and down. It is configured to be slid on. Further, the rubber packing 8 fixed to the lower end portion of the shutter 6 has a hollow shape,
A material that is relatively elastically deformable may be used.

An embedding bolt 15 is inserted into a mounting hole 10 formed in the horizontal portion A1 of the foot fixing base material A, and the horizontal portion A1 is held by upper and lower nuts 16 screwed to the embedding bolt 15. Thus, the horizontal portion A1 of the foot-fixing base material A can be fixed to the embedded bolt 15 in a height-adjustable manner. The embedded bolt 15 penetrates the peripheral frame portion of the form panel B placed on the horizontal portion A1 of the foot fixing base material A, and the upper and lower nuts 16 connect the horizontal portion A1 of the foot fixing base material A to the mold. It is also possible to sandwich the frame panel B from the peripheral frame portion.

By the way, the concrete constitution, shape and dimensions of the anti-loosening device S, the concrete constitution, shape and dimensions of the foot fixing base material A,
Material, specific configuration, shape, dimensions of the shutter housing groove 1,
The specific configuration, shape, size, material, disposition position of the support leg 2,
Number, specific configuration, shape, size, material of shutter 6, specific configuration, shape, size, installation position, number of shutter lever 7, specific configuration, shape, size, material, mounting hole 10 of rubber packing 8 The specific shape, size, arrangement position, number, and specific shape, size, arrangement position, number, etc. of the embedding bolt 15 are not limited to the illustrated examples, but can be set freely.

[0014]

Therefore, the anti-loosening device S according to claim 1 is
Is a substantially inverted L-shaped side surface including a horizontal portion A1 placed so that the lower end surface of the formwork panel B is in close contact, and a vertical portion A2 whose surface is substantially flush with the surface of the formwork panel B. The foot fixing base material A is formed, and in the vertical portion A2 of the foot fixing base material A, the shutter accommodating groove 1 having an opening at the bottom is provided along the longitudinal direction of the foot fixing base material A. A shutter 6 is mounted so that the shutter housing groove 1 can slide up and down, a supporting leg 2 whose lower end abuts on the surface of a concrete floor slab C is fixed to the horizontal portion A1, and a lower portion thereof is a concrete floor. A mounting hole 10 through which the embedded bolt 15 embedded in the plate C can be inserted is formed, and the support leg 2 is
The length is adjustable, and the foot fixing base material A is configured to be supported at an arbitrary position above the concrete floor slab C, and the rubber packing 8 press-contacted to the concrete floor slab C surface is fixed to the lower end of the shutter 6. Between the lower end surface of the formwork panel B and the surface of the concrete floor slab C, the vertical portion A2 of the foot-fixing base material A
Since the shutter 6 and the rubber packing 8 can be closed, even if the surface of the concrete floor slab C is uneven, a slack preventive device is provided between the surface of the concrete floor slab C and the lower end surface of the formwork panel B. S can be surely closed,
When pouring concrete into a pillar formwork or a wall formwork that is assembled when building a concrete structure, it is possible to reliably prevent concrete from leaking from the lower end of the column formwork or the wall formwork. It becomes the stop device S. Further, the installation work of the anti-loosening device S can be easily performed without requiring any skill, the working efficiency is improved, and the anti-loosening device S is excellent in economical efficiency. Moreover, the structure of the anti-loosening device S itself is simple, has high durability, can be used for repeated use, and can be provided at low cost.

Particularly, in the vertical portion A2 of the foot-fixing base material A,
The base material A for fixing the foot into the shutter housing groove 1 having an opening at the bottom
Along with the longitudinal direction of the shutter, the shutter 6 is mounted so that the shutter housing groove 1 can slide up and down, and the rubber packing 8 pressed against the surface of the concrete floor slab C is fixed to the lower end of the shutter 6. Therefore, even if the surface of the concrete floor slab C has considerably large irregularities, the elastic deformation of the rubber packing 8 can reliably close the surface of the concrete floor slab C and the lower end surface of the shutter 6.

Further, since the supporting leg 2 whose lower end abuts on the surface of the concrete floor slab C is fixed to the horizontal portion A1 and the length of the supporting leg 2 can be adjusted, the surface of the concrete floor slab C can be adjusted. It is possible to easily finely adjust the mounting height of the foot fixing base material A with respect to, and to reliably and stably support the foot fixing base material A at an arbitrary position above the concrete floor slab C.

Further, the horizontal portion A1 is placed so that the lower end surface of the mold panel B is in intimate contact, and the surface thereof is the mold panel B.
The vertical portion A2 that is substantially flush with the surface of the
Since the foot-shaped fixed base material A is formed, the formwork panel B can be stably placed on the horizontal portion A1 of the foot-fixed base material A, and the lower end surface of the formwork panel B is made horizontal. Part A1
To be closely attached to.

The anti-loosening device S according to claim 2 is
While fixing the shutter lever 7 to the shutter 6,
This shutter lever 7 is attached to the vertical portion A2 of the base material A fixed under the foot.
The shutter 6 is configured to be forcibly slid up and down by the shutter lever 7 so that the shutter 6 can be reliably moved up and down. Can be slid on. In particular, the shutter 6 can be moved downward without depending on the weight of the shutter 6, and the area between the surface of the concrete floor slab C and the lower end surface of the shutter 6 can be more reliably closed. Moreover, before pouring concrete, the shutter lever 7 can be forcibly slid upward so that foreign matters and dust left in the mold can be easily removed.

[Brief description of drawings]

FIG. 1 is a perspective view of an anti-loosening device of the present invention.

FIG. 2 is a front view of the anti-loosening device of the present invention.

FIG. 3 is a side sectional view of the anti-loosening device of the present invention.

FIG. 4 is a side sectional view of the anti-loosening device of the present invention.

[Explanation of symbols]

S Non-locking device A Foot fixing base material A1 Horizontal part A2 Vertical part 1 Shutter accommodating groove 2 Support leg 3 Leg base 4 Leg bolt 5 Loosening nut 6 Shutter 7 Shutter lever 8 Rubber packing 9 Long hole 10 Mounting hole 15 Embedded bolt 16 Nuts B Formwork panel C Concrete floor slab

Front Page Continuation (72) Inventor Masao Miki 1-38-6 Kameido, Koto-ku, Tokyo Daito Industry Co., Ltd. (72) Inventor Keiichi Kaneko 1-7-10 Nihonbashi Ningyocho, Chuo-ku, Tokyo Holly Co., Ltd. Within

Claims (2)

[Claims] 1. A side surface substantially inverted L-shape composed of a horizontal portion, which is placed so that the lower end surface of the formwork panel is in close contact, and a vertical portion whose surface is substantially flush with the surface of the formwork panel. The foot fixing base material is formed, and in the vertical portion of the foot fixing base material, a shutter accommodating groove with an opening at the bottom is provided along the longitudinal direction of the foot fixing base material, and the shutter accommodating groove is vertically arranged. A shutter is installed so that it can slide, and the horizontal part has a support leg whose lower end abuts against the surface of the concrete floor slab, and an embedded bolt whose lower part is embedded in the concrete floor slab. A mounting hole,
The support leg is adjustable in length and is configured to support the foot fixing base material at any position above the concrete floor slab,
A rubber packing pressed against the surface of the concrete floor slab is fixed to the lower end of the shutter, and the lower part of the formwork panel and the surface of the concrete floor slab are blocked by the vertical part of the foot fixing base, the shutter, and the rubber packing. An anti-loosening device at the bottom of a pillar formwork or a wall formwork, characterized by being configured so that it can be done. 2. A structure in which a shutter lever is fixed to a shutter, the shutter lever is inserted into an elongated hole provided in a vertical portion of a foot fixing base material, and the shutter lever is forced to slide up and down. The anti-loosening device in the lower part of the pillar formwork or the wall formwork according to claim 1, characterized in that.