JP3083100U - Floor concrete level adjuster - Google Patents

Abstract

(57) [Summary] [Problem] Before concrete is cast, it is driven into the floor form material, and it is assembled to the locking arm and the rebar is locked from above and firmly fixed, and level adjustment and fine adjustment are also possible Yes, it can be checked again after casting, it is easy to see and draws attention to the operator. SOLUTION: In a level adjusting tool to be driven into a floor form material X, the main body is provided with a horizontal holding portion 1a having an expanded wing at a tip portion, and an insertion nail 1b is provided at the center of the holding portion. An inverted U-shaped locking arm 3 is provided near the center in the longitudinal direction of the main body, which is to be fixed to an assembling rebar, and a male screw 1c is provided at the end of the main body. To
A folding groove 1d is provided, and the level indicator plate comprises a cylindrical portion 2a and a flange portion 2b. Is provided with a cuttable first arm portion 2c having a display portion 2e protruding upward, and a second arm portion 2d.
The one with f.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a floor concrete level adjuster.

[0002]

[Prior art]

 Conventionally, in the construction of a reinforced concrete building, it has been necessary to finish the slab surface at a predetermined position to a horizontal surface when placing concrete.

[0005] Before casting, reinforcing bars are arranged on the upper surface of the floor formwork, and measured at a key point such as an extension column or a wall bar with a level device or the like, and a mark or slab is formed. Concrete lumps of a predetermined height were placed on the surface, or a jig of a predetermined height was fixed with nails and protruded.

[0004] However, at the time of placing concrete, an operator sometimes hardens the concrete or accidentally kicks out a jig having a predetermined height. Furthermore, the locking arm locks the assembled rebar from below, making it difficult to set. When an operator steps on the assembled rebar at a position locked by the locking arm, the assembled rebar is As a result, the level adjuster was tilted or damaged, resulting in a useless use.

[0005]

[Problems to be solved by the invention]

 Therefore, the present invention eliminates and solves the above-mentioned disadvantages, drives the preparation tool into the floor form material with a hammer, etc. before casting concrete, and assembles it with the locking arm and locks the rebar from above to make it robust. Can be fixed vertically, and can be adjusted and fine-tuned by the main unit and the level display board. This is to develop and provide floor concrete level adjusters that can draw attention to

[0006]

[Means for Solving the Problems]

 This invention consists of a rod-shaped main body for driving into a floor form material, and a level display board capable of recognizing and adjusting a level surface, and the main body has a horizontal wing having an expanding wing at a tip portion. And a bayonet nail is provided at the center of the holding part, and an inverted U-shaped locking arm is provided near the center in the longitudinal direction of the main body for locking to an assembling rebar. A folding groove is provided at the end of the body, the level display plate comprises a cylindrical portion and a flange portion, and an internal screw which is screwed with a male screw at the upper end of the main body is provided on the inner wall of the cylindrical portion. The flange has a cuttable first arm and a second arm, the first arm has a display portion protruding upward, and the second arm has a rotary hole. It is characterized by the following.

[0007]

[Embodiment of the invention]

 One embodiment of the present invention will be described with reference to the accompanying drawings. It comprises a main body (1) for driving a floor form (X) and a level display plate (2) capable of recognizing and adjusting a level surface. In the level adjuster, the main body (1) is provided with a horizontal holding portion (1a) having an expanding wing at a tip portion, and an insertion nail (1b) is provided at the center of the holding portion. 1) Near the center in the length direction, an inverted U-shaped locking arm (3) for locking to an assembly reinforcing bar is provided, and a male screw (3) is provided at the end of the main body (1). 1c), a folding groove (1d) is provided at the end of the main body, and the level display plate (2) comprises a cylindrical portion (2a) and a flange portion (2b), and an inner wall of the cylindrical portion. Is provided with a female screw to be screwed with a male screw at the upper end of the main body (1), and the flange (2b) can be cut off. The first arm (2c) and the second arm (2d) are provided, the first arm (2c) is provided with a display portion (2e) protruding upward, and the second arm (2d) is provided. It comprises a level adjuster for floor concrete characterized by having a rotating hole (2f).

Further, the main body (1) is characterized in that a plurality of recesses (2g) are provided in the axial direction on the entire circumference, and are formed in a cylindrical shape for reinforcement in the middle.

Next, the method of using the present invention will be described with reference to the drawings. Before the concrete is poured into the floor frame material (X), the insertion nail (1b) of the main body (1) is driven and an inverted U-shape is formed. The locking arm (3) can be locked from above from one of the horizontally intersecting reinforcing bars (Y) assembled in the floor formwork (X) (see FIGS. 1 and 4). In addition, the crossed portion (not shown) of the crossed reinforcing bar (Y) is locked from above at an angle, and a level display plate (2) is screwed into the main body (1) to adjust the height of the concrete. Then, the display part (2e) protruding upward is erected on the first arm part (2c), and the position is alerted and called.

[0010] In addition, the display portion (2e) protruding above the first arm portion (2c) is pinched, and the level display plate (2) is rotated to adjust the display portion to a predetermined height. A rotary hole (2f) is provided in the two-arm part (2d), and the tip of a writing instrument such as a pencil or a ballpoint pen is inserted into the rotary hole (2f) and rotated to set the level display plate (2) to a predetermined position. It is adjusted to the height position.

[0011] Further, the display portion (2e) of the level display plate (2) is erected, concrete is cast, and after fixing, the level display plate (2) and the main body (1) are left as they are. The second arm portion (2d) is removed from the level display plate (2) by holding the display portion (2e).

[0012]

[Effect of the invention]

 According to the present invention, the main body (1) is provided with a horizontal holding portion (1a) having an expanded wing at a tip portion, and an insertion nail (1b) provided at the center of the holding portion. The nail (1b) is not driven into the floor formwork (X) for a certain length or more, the depth of the driving is constant, and the horizontal holding part (1a) having the expanding wings is used to secure the nail. The body (1) can be driven perpendicularly to the floor form material (X) and can be maintained vertically. To stop, the inverted U-shaped locking arm (3) is inserted from above the rebar before the concrete is poured, so that the worker walks on the rebar or discharges concrete. Even if hoses come in contact with each other, or if the weight of the hoses lowers the rebar, the locking arm (3 The lower part is open, so that it can be freely lowered, so that the main body can be firmly fixed without tilting or being damaged. In addition, the inverted U-shaped locking arm (3) Since it can be inserted and fixed from above, the work is easy and simple. In addition, a male screw (1c) is provided at the end of the main body (1), and at the end of the main body (1). Is provided with a folding groove (1d), and the length of the body can be adjusted by folding the body (1) from the folding groove (1d).

[0013] Furthermore, a female screw provided on the cylindrical portion (2a) of the level display plate (2) and a male screw at an end portion of the main body are screwed together, and the second arm of the level display plate (2) is screwed. Finely adjust the level display plate (2) to a predetermined height easily by inserting the tip of a writing instrument such as a pencil or ballpoint pen into the rotating hole (2f) of the section (2d) and rotating it. It has extremely beneficial effects such as accurate leveling.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of a level display plate used in the present invention.

FIG. 3 is a sectional view taken along the line II in FIG. 1;

FIG. 4 is a partially cutaway front view showing one embodiment of a main body (1) and a level display plate (2) used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 1a Horizontal holding part 1b Inserting nail 1c Male screw 1d Folding concave groove 2 Level display plate 2a Cylindrical part 2b Flange part 2c First arm part 2d Second arm part 2e Display part 2f Rotating hole 2g concave streak 3 Lock Arm X Floor form material Y Assembly rebar

Claims (2)

[Utility model registration claims] 1. A level adjuster comprising a main body (1) for driving into a floor form material (X) and a level display plate (2) capable of recognizing and adjusting a level surface.
Is a horizontal holding part (1a) having an expanded wing at the tip.
Is provided, and an insertion nail (1b) is provided at the center of the holding portion.
In the vicinity of the center in the longitudinal direction of the main body (1), there is provided an inverted U-shaped locking arm (3) for locking to an assembling rebar, and at the end of the main body (1), A male screw (1c) is provided, a folding groove (1d) is provided near the end of the main body, and the level display plate (2) comprises a cylindrical portion (2a) and a flange portion (2b). On the inner wall of the cylindrical portion, a female screw that is screwed with the male screw (1c) at the upper end of the main body (1) is provided. , A second arm (2d), and a first arm (2d).
c) is provided with a display part (2e) projecting upward,
A level adjusting tool for floor concrete, wherein a rotating hole (2f) is provided in the second arm portion (2d). 2. A body (1) having a plurality of concave stripes (2) all around.
2. The level adjuster for floor concrete according to claim 1, wherein g) is provided in the axial direction.