JP3122940B2 - Concrete bubble removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete bubble removing device used for removing bubbles generated in concrete cast in a formwork.

[0002]

2. Description of the Related Art Conventionally, in order to remove air bubbles in concrete poured into a formwork, a spatula-shaped plow is inserted into the poured concrete, and the plow is moved up and down manually. Is adopted. However, in this method, the vertical movement of the plow board is performed entirely by human power, and thus a large amount of labor is required for the operation.

Therefore, in order to reduce the labor of the above work, a bubble removing device with a vibrator for mechanically vibrating the plow portion has been proposed (for example, Japanese Utility Model Publication No. 4-279).
No. 59, Japanese Utility Model 4-54268, etc.).

[0004]

However, any of the above-mentioned devices is designed to apply vibration to facilitate insertion of the plow board into the poured concrete, and to raise and lower the plow board itself. The dynamic operation is still manually performed, and does not sufficiently reduce the labor of the operator. The present invention has been made in view of the above problems, and an object of the present invention is to provide a concrete bubble removing device capable of reducing labor in removing bubbles in concrete cast in a formwork.

[0005]

In SUMMARY OF THE INVENTION The present invention because this consists of a plow that is inserted in the concrete that is Da設in a mold, a drive mechanism for vertically moving the該鋤portion in said concrete, said A connection body in which the plow part and the drive mechanism can be bent freely.
And the driving mechanism is rotated by a driving motor.
Transfer shaft and a left shaft formed on the transfer shaft.
And both ends of the right and left threads are fitted with one end.
And a mover fixed at the other end to the connecting body.
It is characterized by having.

[0006]

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 is a partially cutaway perspective view showing the entire structure of the bubble removing device according to the present invention, and FIG.
Is a perspective view of the drive mechanism with a partial cutaway, and FIG. 3 is a perspective view showing a use state of the present apparatus.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the present apparatus comprises a plow 1 inserted into concrete cast in a formwork, and a drive mechanism 2 connected to the plow 1 via a wire 3. It is configured. The plow part 1 has a plurality of through holes 4a
The spatula-shaped spade plate 4 provided with a bolt is fixedly connected by bolting.

The drive mechanism 2 is driven by a drive motor 7 disposed on a steel pipe frame 6 via a chain 8 through a transfer shaft 9.
Is rotated. The transfer shaft 9 is formed with both left-handed and right-handed thread grooves 10, and one end of the moving element 11 is fitted into the both thread grooves 10. And
The transfer shaft 9 is rotated by the drive of the motor 7, and the moving element 11 is reciprocated back and forth. One end of the wire 3 is fixed to the other end of the movable element 11 and slides back and forth in the guide tube 12, and the plow 1 is interlocked with the movement of the wire 3. In this way, by connecting the plow portion 1 and the drive mechanism 2 with the bendable wire 3, the operator does not need to manually move the plow portion 1 itself up and down, and the lightweight plow portion 1 All that is required is to move while holding only the object, and the effort can be reduced. In addition, since the length of the wire 3 can be arbitrarily and easily changed, the degree of freedom of operation is increased, and the wire 3 can be used corresponding to various sites. In the figure, reference numeral 3a denotes a flexible wire mesh jacket for protecting the wire 3, and 13 denotes a guide rod of the movable element 11.

Next, the method of use and operation of the present apparatus will be described. The operator grips the circular tube 3b attached to the distal end of the jacket 3a of the wire 3 and inserts the plow portion 1 into the concrete 15 cast in the formwork 14, as shown in FIG. 3, for example. I do. In this state, the driving mechanism 2 is driven to move the plow portion 1 up and down several times, and then the operation of once pulling out the concrete 15 is repeatedly performed. When the vertical movement as shown by the arrow A is given to the plow board 4 in the concrete 15 in this way, the air bubbles remaining inside the concrete 15 are swung by the surrounding concrete 14 to cause the plow board 4 to move. It is caught in the through hole 4 a or adheres to the outer surface of the plow plate 4. Then, when the plow plate 4 is pulled upward in this state, the air bubbles follow the plow plate 4 and are discharged and discharged.

In the drive mechanism 2 of the present apparatus, the transfer shaft 9 having the left and right screw grooves 10 and the moving element 11 engaged with the transfer shaft 9 convert the rotational motion of the drive motor 7 into a linear reciprocating motion, and Is moved up and down, but the present invention is not limited to this. Any combination such as a combination of a cam and a crank or a combination utilizing a cylinder piston mechanism is available. Although the wire 3 is used as the connecting body according to the second aspect, a structure in which a chain member is flexibly connected by a joint pin may be used. Still further, the driving mechanism 2 may be made compact and lightweight to be carried on the back, and may be provided with portability and startability for convenience in a site where working conditions are poor.

[0012]

As described above, the present invention has a thread groove.
Driven by the transfer shaft and the mover engaged with it
Converts motor rotation to linear reciprocation, and moves plow up and down
The following advantageous effects can be obtained because the configuration is made to move . (1). There is no need to manually move the plow part up and down,
The effort can be reduced. (2). Since the plow portion and the drive mechanism are connected by a bendable connecting body (wire), the degree of freedom of operation is increased, and it is possible to use the plow portion and the driving mechanism in various places.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing the entire configuration of an air bubble removing device according to the present invention.

FIG. 2 is a partially cutaway perspective view of a drive mechanism.

FIG. 3 is a perspective view showing a use state of the present apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plow part 2 Drive mechanism 3 Wire 3a Metal jacket 4 Plow plate 4a Through hole 5 Shaft 6 Frame 7 Drive motor 8 Chain 9 Transfer shaft 10 Double screw groove 11 Mover 12 Guide cylinder 13 Guide rod 14 Formwork 15 Concrete

Claims (1)

(57) [Claims] 1. A plow part inserted into concrete cast in a formwork, and a drive mechanism for moving the plow part up and down in the concrete, wherein the plow part and the drive mechanism are freely bendable. And the drive mechanism is connected to a drive mode.
Transfer shaft rotated by the
Both formed left-hand and right-hand thread grooves, and the both thread grooves
Mover having one end fitted to the other end and the other end fixed to the connector.
And a concrete bubble removing device.