JPH0645559Y2 - Construction concrete pouring top display - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention is mainly used when constructing a reinforced concrete slab or the like, and the top end of a concrete slab that is mounted and placed in an appropriate position such as a steel beam Concerning the construction concrete pouring top display which displays.

[Prior Art] Conventionally, as a top end indicator of a concrete slab in a steel reinforced concrete structure, a board is welded and fixed on a steel frame of a beam at a construction site, and an adjusting bolt is screwed into the board to fix the board. Most of the means to display the top end as the top of the cast concrete slab and to construct it, and there is no rational and appropriate method or means.

[Problems to be solved by the device]

According to the above-mentioned conventional methods and means, since the metal fitting is fixed on the steel frame of the beam by welding, there is a danger and a structural inconvenience.

In addition, there are various problems such that the placing hose during concrete placement is likely to come into contact and fall down, it is difficult to achieve the initial purpose, and it is economically disadvantageous.

[Means for Solving the Problems]

This invention has been made in view of the conventional problems, and its purpose is to be easily attached to steel frames, steel frames of beams in reinforced concrete construction, etc., and to be able to reliably display the concrete crown level. Is to provide a concrete pouring top display for construction.

As a means for this, a clamping bolt is provided by being screwed into one of the upper and lower parallel pieces of the holding body formed in a substantially U-shape on the side surface so as to be able to move inward and backward, and the central portion of the upper piece of the holding body. Is provided with an adjusting bolt, and is mounted with a flexible top end display piece which is screwed up and down along the axis of the adjusting bolt so that the height can be adjusted.

[Action]

With the above structure, the holding body is attached to the steel frame flange of the beam by tightening the tightening bolt, and the adjusting bolt on the upper piece of the holding body places the flexible top end indicating piece on the predetermined height of the concrete slab. After adjusting according to the height, if concrete is poured, it can be easily attached to the steel frame of the beam, and the concrete crown level can be reliably displayed, and the problems of the conventional example are solved. .

〔Example〕

Next, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view of a concrete pouring top end indicator for construction according to a first embodiment of the present invention.

In the figure, 1 is a top end display tool, 2 is a holding body formed in a substantially U-shaped side surface, and a tightening bolt 3 which is orthogonal to the parallel lower piece 2a and is capable of being advanced and retracted inward is screwed. Set up.

Reference numeral 4 denotes an adjusting bolt which is provided orthogonal to the upper piece 2b of the holding body 2 and fixed to the center thereof.

Reference numeral 5 is a flexible top end indicator piece made of synthetic resin or the like which is vertically screwed along the axis of the tightening bolt 4 and has a female screw portion 5a integrally provided on the lower portion thereof. .

In addition, 5b shows a position display piece.

Next, a second example of use of the crown display according to the first embodiment will be described.
It will be described with reference to the drawings.

At an appropriate interval between the flanges of the steel frame H of the beam, the holding body 2 of the top end indicating tool 1 is tightened by the tightening bolts 3 to be attached.

Then, the flexible top end display piece 5 is rotated to adjust the height so as to correspond to the concrete slab thickness S, and the concrete is placed by pouring the concrete.

Next, another embodiment of the concrete pouring top display for construction of the present invention will be described.

FIG. 3 is a side view of an essential part showing a second embodiment of the present invention.
This is a form in which an adjusting bolt 24 having a tightening function is screwed so as to be able to move forward and backward with respect to the central portion of the upper piece 22b of the holding body 22 formed into a substantially U-shaped side surface.

According to the second embodiment, the tightening bolt is omitted, and at the same time, the adjusting bolt 24 is provided with the function of this tightening bolt, so that the workability at the time of attaching to the steel frame is remarkably improved and it is provided at low cost. There is an effect to obtain.

[Effect of device]

As described in detail above, according to the concrete pouring top end indicator for construction of the present invention, it is not necessary to weld it to the steel frame of the beam each time as in the conventional example, and it can be easily and easily attached. Yes, it is safe.

Moreover, it is possible to obtain a rational and practically extremely effective construction concrete pouring top display device that can be reliably constructed and can display the top level of concrete.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment of a concrete pouring top end indicator for construction according to the present invention, and FIG. 2 is a state of use thereof,
FIG. 3 is a side view of the essential parts of the second embodiment. 1 ... Crown display tool. 2 ... a holding body. 4 ... Adjusting bolt. 5: Flexible top display piece. H: Beam steel frame.

Claims (1)

[Scope of utility model registration request] 1. A clamping bolt which is screwed into an upper and lower piece parallel to the holding body formed in a substantially U-shaped side surface so as to be capable of moving inward and backward, and an upper piece of the holding body. A construction in which an adjustment bolt is provided at a central portion orthogonal to the vertical axis, and a flexible top end display piece screwed in vertically adjustable along the axis of the adjustment bolt is mounted. Concrete pouring top display.