JP2518330Y2 - Instrument for confirming concrete driving height - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention belongs) The present invention relates to a device for detecting and confirming the driving height of concrete.

(Problems of the device and its characteristic points) Conventionally, the concrete driving height has been visually confirmed by marking on the inside of the formwork or the reinforcing bar or by visually marking on the outside of the translucent formwork. Or
It was confirmed using a level measuring instrument or by hitting the formwork with a wood hammer etc. by sound, but when driving concrete into multiple layers, it is difficult to see the lower layer part. There is a problem in that, because the concrete pouring worker cannot confirm while working, a dedicated person is required, is labor-intensive, and requires experience and proficiency.

An object of the present invention is to provide a simple tool which enables a concrete driving worker to easily detect and confirm the concrete driving height while working. The features are as described in the claims for utility model registration.

(Description by Drawings) In the drawings, 1 indicates a level bar, and 2 indicates a fixture.

The level bar 1 illustrated in FIG.
It is used for confirming the concrete driving height at each time when placing in a divided manner. A spherical float 4 is attached to one end of the elongated frame 3, and the length of the frame 3 is long. Markings A, B, C, D, and E are provided at positions, which will be described later, in the depth direction.

The fixture 2 includes a tubular guide portion 5 into which the skeleton 3 of the level rod 1 is slidably inserted, and a fixture portion 6 formed of, for example, a clamp.
With the tubular guide portion 5, the frame 3 of the level rod 1 is inserted, and is fixed to, for example, the column main bar 7 (see FIG. 2).

When using the template 8 located above the final driving concrete surface as the position for visually confirming the concrete driving height, the distance from A to the float 4 is set equal to the distance from the template 8 to the concrete driving start surface, and A → The distance of B is set to the dimension of the concrete driving height of the first layer minus the sinking amount of the float 4 in the concrete, and the distances of B → C, C → D and D → E are set to the second layer and the third layer. Equal to the concrete driving height of the 1st and 4th layers.

Then, the level rod 1 is set so that the float 4 rides on the concrete driving start surface (at this time, A is at the position shown in FIG. 3), and when the concrete is driven, the level is increased as the driving concrete surface rises. When the rod 1 also rises and B reaches the template 8, it is possible to visually check and confirm that the concrete of the first layer has been driven to a predetermined height. The same applies to the second and third layers below. , 4th
You can visually check the concrete driving height of the layer.

FIG. 4 is a modification of the float 4, where (a) shows a combination of hemispheres and cones, and (b) shows a square flask shape.

FIG. 5 shows a case in which marking F is applied to the skeleton 3 of the level bar 1 and the scale 9 is also used to visually check and confirm the driving height of the concrete, and the marking F in this case is easy to see. It may be applied at an appropriate position.

(Effect of the device) Since the concrete driving height confirmation tool of the present invention is as described above, it is easy for a concrete driving worker to visually check and check the concrete driving height while performing the work. Can be carried out accurately,
Not only is it very convenient, but it has the advantages of a simple structure, easy attachment and detachment, and continuous diversion.

[Brief description of drawings]

1 is a front view of a level rod, FIG. 2 is a fixing mode diagram of a fixture, and FIG. 3 is a view of a relationship between a visual / confirmation position and a level rod. 4 is a modified example of the float, and FIG. 5 is another example of visual confirmation. 1: Level bar, 2: Fixture, 3: Body, 4: Float, 5: Tubular guide part, 6: Fixing part ...

Front page continuation (72) Inventor Shunji Goto 1-2-1 Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (72) Inventor Shitsuo Itsuo 1-2-1 Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (72 ) Inventor Gen Wakabayashi 1-2-1 Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (72) Inventor Kenya Ikaya 1-2-1 Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (72) Toshiyuki Yagi 1-2-1 Taito, Taito-ku, Tokyo Within Fudo Construction Co., Ltd. (72) Inventor Noboru Tsuruyama 1-2-1 Taito, Taito-ku, Tokyo Within Fudo Construction Co., Ltd. (72) Hiroyuki Mori Taito 1 Taito-ku, Tokyo ―2-1 Fudo Construction Co., Ltd. (72) Inventor, Kunio Matsuda 1-2-1 Taito, Taito-ku, Tokyo Fudo Construction Co., Ltd. (56) Bibliography 60-10048 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A level rod having a float attached to one end of an elongated skeleton and having a required marking at a predetermined position in the length direction of the skeleton, and a tubular guide portion into which the skeleton of the level rod is slidably inserted. An apparatus for confirming concrete pouring height, comprising: a fixing tool having a fixing part and a fixing part.