JP2504773Y2 - Running bodies in concrete levelers, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of Invention] (Industrial field of application) The present invention relates to a traveling body in a concrete leveling machine that automatically travels on bar arrangements to level a concrete placing surface.

(Prior Art) Conventionally, the work of leveling concrete cast during the construction of a concrete floor surface was performed manually, but manual leveling is inefficient and requires a lot of time. However, there are various problems such as difficulty in securing workers.

Therefore, recently, various automatic leveling machines have been developed and provided which, as can be seen in, for example, Japanese Patent Laid-Open No. 62-137362, after pouring concrete, it is self-propelled on the concrete to level the concrete flatly. ing.

The general concrete leveling machine as described above is provided with a traveling body for self-propelled on concrete, an accumulator is attached to this traveling body, and the traveling body is remotely operated while self-propelled on concrete. It is designed for leveling concrete.

By the way, the traveling body in the conventional concrete leveling machine has a structure using a caterpillar in order to reduce the surface pressure by making surface contact with the concrete and enable smooth traveling on the concrete. There is.

(Problems to be solved by the invention) However, in the case of a traveling body having a caterpillar structure, the track plate forming the caterpillar sinks into the uncured concrete and travels on the rebar, and the rear portion of the caterpillar is removed from within the concrete. When it goes out upwards, the concrete is greatly exposed, and it cannot be compensated for by the concrete that naturally flows into the running trace, and the leveling device attached cannot complete the leveling work satisfactorily. There was a problem that it caused a big trouble.

In view of this, the present invention has been made for the purpose of providing a traveling body in a concrete leveling machine that does not expose concrete even when traveling on concrete and has little influence on leveling work. .

[Constitution of device]

(Means for Solving the Problems) In order to solve the problems of the above-described conventional technique, the present invention winds left and right endless rotating bodies between end portions of shafts arranged in parallel in front and back so as to be rotatable. These endless rotary bodies are fixed to each other by a large number of arm members having the same length protruding in the radial direction, and connecting rods are respectively fixed between the tips of the pair of left and right arm members. Also, the front end row of the arm member is grounded so that it can travel.

(Operation) When the endless rotary body is rotationally driven in one direction, the rotation causes the connecting rods to come into contact with the concrete one after another, and the connecting rods located on the lower side come into contact with the reinforcing bars to run. The connecting rod protruding from the rear end of the lower side onto the concrete does not scoop up the concrete because the top surface is round, and the traces formed on the concrete are also linear, so the surrounding concrete immediately flows in and is backfilled, and is attached to the running body. It is easily flattened by a leveling device.

(Embodiment) Hereinafter, the present invention will be described with reference to an embodiment shown in the drawings.

The traveling body 1 according to the present invention, as shown in FIG. 1 as an example, has shafts 2 and 3 which are provided in parallel and spaced apart from each other in the front-rear direction and are supported by the left and right frames 4 and 4, respectively. Guide wheels 5,5,6,6 and chain wheels 7,7,8,8 are fixed near the end of 3, respectively, and chain wheels 7,8,7,8 of front and rear shafts 2,3
Chains 9 and 9 as endless rotating bodies are wound between them. These chains 9, 9 are adapted to be rotated along chain guides 10, 10 provided inside the frames 4, 4.

A plurality of arm members 11, 11 having a length substantially equal to the radius of the guide wheels 5, 5, 6, 6 are fixed to the chains 9, 9 in the radial direction so as to correspond to the left and right. Left and right opposing arm members
Round bar-shaped connecting rods 12, 12 ... Are fixed between 11 and 11. Therefore, these connecting rods 12, 12 ... and Chain 9,9
The tip row of the arm members 11, 11 ... of the lower running part of the is installed, and any one of them runs on the longitudinal bar or the lateral bar of the reinforcing bar 13.

2 and 3 show a side surface and a plane showing an example of a concrete leveling machine using the traveling body 1.
That is, in this embodiment, two left and right traveling bodies 1, 1 are arranged side by side, and supporting members 14, 14 are mounted on the frames 4, 4 of these traveling bodies 1, 1.
A pedestal 15 is horizontally supported via the pedestal 15, and a control unit, a drive source, other necessary equipment 16 and a traveling body are mounted on the pedestal 15.
It is equipped with 1, 17 traveling motors 17, 17 and a support arm on the rear side opposite to the traveling direction of the pedestal 15 (the direction of the white arrow).
18,18 are lined up.

A chain wheel 1 is attached to each output shaft of the traveling motors 17, 17.
9,19 are fixed, and chains 21,19 are attached to the chain wheels 19,19 and chain wheels 20,20 at the ends of the rear shafts 3,3 of the traveling bodies 1,1.
Is wound so that the chains 9, 9 of the traveling bodies 1, 1 can be driven synchronously or separately. Reference numeral 22 is a chain cover.

Cylinders 23, 23 as vertical movement mechanisms are vertically mounted on the tips of the support arms 18, 18, and the left and right bearings of a frame body 25 connected to rods 24, 24 of the cylinders 23, 23 are mounted.
Both ends of the rotation leveling body 27 are supported between 26 and 26. This rotation leveling body 27 uses a screw in the illustrated example,
The rotation leveling body 27 is covered with a cover 28 from the upper half to the lower rear.

A rotation driving motor 29 for the rotation leveling body 27 is mounted on the frame body 25, and the rotation is transmitted from the motor 29 to the rotation leveling body 27 via the chain 30. In the figure, reference numeral 31 is a chain cover.

The diaphragm 3 is provided on the rear side of the frame 25 via arms 32, 32.
3 is supported in a horizontal position. The vibration plate 33 has a length approximately the same as the rotation leveling body 27.
In the center of the left-right direction of the
Is installed. The lower surface of this diaphragm 33 is a flat smooth surface.
33a, and the front and rear edges of the leveling surface 33a are formed in a curved shape so as not to lift concrete. The leveling surface 33a of the vibration plate 33 is located at substantially the same height as the lower end of the rotation leveling body 27, and the rotation leveling body 27 and the vibration plate 33 are put together by the operation of the cylinders 23, 23. It is designed to move up and down.

Further, an outer frame 35 with a touch sensor is provided so as to be supported by the frame body 25 so as to surround both sides of the vibration plate 33 and both left and right sides of the rotation leveling body 27.

At the center of the frame 25, a detector 36 for receiving laser light for automatically driving the traveling bodies 1, 1 is established via a post 37, and also an inclinometer (not shown) or the like. Is also provided. In the figure, reference numeral 38 indicates cast concrete, and 39 indicates aggregate.

 Next, the operation of the above embodiment will be described.

Concrete 38 is placed on the floor surface, etc., when the concrete leveling machine is loaded when it is in the uncured state, the cylinders 23, 23 of the vertical movement mechanism are actuated to lower the rotation leveling body 27 via the frame 25, When the lower end of the rotation leveling body 27 is positioned at the planned leveling surface position, the leveling surface 33a on the lower surface of the diaphragm 33 is also set at the same height position.

Then, the driving motor 29 of the rotation leveling body 27 is activated to give rotation to the rotation leveling body 27, and at the same time, the vibration mechanism 34 is activated.
When the traveling motors 17,17 are activated, the traveling bodies 1,1
As shown in FIG. 4, the connecting rods 12 and 12 fixed by being rotated by 9 sink into the concrete 38 and engage with the reinforcing bar 13,
It runs on the rebar 13 and the concrete 38
After being leveled and leveled, the concrete 38 is leveled further by the fine vertical vibration of the diaphragm 33 to achieve leveling.

At the time of running, only the connecting rods 12, 12 ... Of the traveling bodies 1, 1 sink only into the concrete 38 as shown in FIG. 4, so that the connecting rods 12, 12 ... 4 does not wipe out the concrete 38 when it goes out of the concrete 38, and the traveling of the tip row of the arm members 11, 11 ... on the lower traveling side between the guide wheels 5 and 6 The traces are also small, and are immediately filled by the flowing-in of the concrete 38, and are easily flattened by the rotary leveling body 27.
Then, the leveling trace by the rotation leveling body 27 is erased by the continuous fine vertical vibration of the vibration plate 33, further flattening is achieved, and the subsidence of the aggregate 39 of the concrete 38 is assisted, and a good leveling is achieved. Done.

The traveling bodies 1, 1 during the work are always controlled in the correct direction and level by the laser detector 36, and the concrete pouring surface that requires leveling can be leveled all over.

Note that the guide wheels 5, 6, ... Of the traveling body 1 in the illustrated embodiment can be implemented without necessarily providing them. Furthermore, the leveling body
27 is not limited to a screw, and may be a leveling machine using another leveling device, and the vertical movement mechanism may be a mechanical means other than the cylinder, such as a link mechanism.

[Effect of device]

As described above, according to the present invention, the left and right endless rotating bodies are rotatably and rotatably wound between the ends of the shafts arranged in parallel in the front-rear direction. Since the arm members were fixed so as to project in the radial direction, and the connecting rods were respectively fixed between the tips of the pair of left and right arm members, there is no scooping or peeling of concrete even when running on the cast concrete, It can be run without disturbing the concrete surface, and since there is a gap between the connecting rods in particular, there is no removal of concrete to the side, and the flow of concrete into the traces after running is smooth, and it is even. Good leveling can be performed without affecting the leveling work by the shaving device. In addition, since the tip row of arm members is in the traveling direction of the traveling body and the connecting rod is in contact with the traveling direction at right angles,
When running on a reinforcing bar that crosses vertically and horizontally with a step, no matter which direction the running body advances, it will always run on the topmost reinforcing bar, causing the running body to move up and down. Can be run without giving. Furthermore, when traveling on the concrete pouring surface, only the connecting rod sinks into the concrete, and the chain or sprocket does not sink, so the concrete, which is a solidifying material, directly adheres to the chain or sprocket, its shaft, etc. It has various effects such as not solidifying and causing malfunction.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a traveling body according to the present invention,
FIG. 2 is a side view showing an example of a concrete leveling machine using the traveling body of FIG. 1, FIG. 3 is a plan view of the concrete leveling machine, and FIG. 4 is an explanatory view of a traveling state of the traveling body. 1 ... running body, 2,3 ... axis, 5,6 ... guide wheel, 9 ... chain as an endless rotating body, 11 ... arm material, 12 ... connecting rod,
15 …… Stand, 27 …… Rotation leveling body, 33 …… Vibration plate.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hayao Aoyagi 2-5-14 Minamisuna, Koto-ku, Tokyo Inside the Takenaka Corporation Technical Research Institute (72) Inventor Hirokuni Kubota 8-21 Ginza, Chuo-ku, Tokyo No. 1 stock company Takenaka Corporation Tokyo Main Store (72) Inventor Toru Shimano 1293 Amado-cho, Chiba City, Chiba Prefecture Sanwa Machinery Co., Ltd. (72) Inventor Kazuo Yamazaki 1293 Amado-cho Chiba City, Chiba Prefecture Sanwa Machinery Co., Ltd. Company Chiba Factory (56) References Jitsuko Sho 47-27386 (JP, Y1)

Claims (1)

(57) [Scope of utility model registration request] 1. A left and right endless rotating body is rotatably and rotatably wound between end portions of shafts arranged in parallel in front and rear directions, and a large number of arm members having the same length are radiated to these endless rotating bodies. It is fixed so as to project in the direction, and connecting rods are respectively fixed between the tips of each pair of left and right arm members, and the tip rows of these connecting rods and arm members are grounded so that they can travel. A running body in a concrete leveling machine.