JP2742721B2 - Method and device for moving on bar arrangement - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving method and an apparatus for moving in a desired direction on a slab-arranging reinforcing bar in a construction work.

[Conventional technology]

Conventionally, when constructing a building slab, reinforcing bars are arranged before placing concrete.For this purpose, during the transportation of reinforcing steel and subsequent concrete placing work, construction materials and various equipment are arranged. In the case of transporting the vehicle over a slab, it is difficult to move the bar without disturbing the arrangement of the bars, and it is difficult to use a wheel or a crawler belt.

[Problems to be solved by the invention]

The conventional method of laying a scaffolding board to transport on reinforcing bars requires carrying and laying or removing the scaffolding board each time, which requires time and effort, and also requires transporting on a slender scaffolding board. It is necessary to be careful that the passage is narrow so that it does not come off the scaffold, and it can only move on the laid scaffold.

An object of the present invention is to provide a method and a moving device which can solve these disadvantages and can move freely and stably in any direction of 360 degrees.

[Means for solving the problem]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a motor provided with a bowl-shaped friction plate formed of a non-slip material such as rubber in a hollow portion of a bowl-shaped slide plate formed of a slippery material such as steel. A device for moving four or three footboards, which are moved up and down by means of an electromagnetic clutch, in a quadrilateral or triangular manner by means of an expansion and contraction device on a bar arrangement, and a device in which the front friction disc is pulled up to lift After the disc is in the sliding state and the electromagnetic clutch is disconnected, the rear friction disc is lowered and the footboard is stopped, and at least one electromagnetic clutch is connected. Extend the telescopic device, then lower the friction board forward to stop the footboard, disconnect the electromagnetic clutch of at least one footboard, and pull up the rear friction board to bring the footboard to the sliding state. After moving on the telescopic device Those taking measures how to move the upper reinforcement which is adapted to shrink at a reduction amount according to direction.

〔Example〕

A first embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, the four footboards 1 are connected to each other by a telescopic device 2 so as to form a quadrangle, thereby forming a moving device.

The detailed structure of the footboard 1 is shown in FIGS.
A bowl-shaped sliding board 4 having a hollow portion 3 made of a slippery material such as steel or FRP is fixed to the mounting leg 6 of the octagonal support plate 5 and fitted into the hollow portion 3 so as to be vertically movable. A rubber-like material or a knurled steel plate or the like is fitted with a bowl-shaped friction plate 8 having a non-slip bottom surface 7, and a screw rod 9 is fixedly mounted at the center above the bowl-shaped friction plate 8. And is placed on a reinforcing bar 10 composed of a vertical bar 10a and a horizontal bar 10b.

In this case, the friction plate 8 is fitted into the hollow portion 3 of the sliding board 4, but a friction plate may be provided on the outside and the sliding board may be fitted into the hollow portion.

Bottom plate 13 of motor 12 having reduction gear 11 on support plate 5
The bottom plate 16 of the support rod 15 connected below the electromagnetic clutch 14 is fixed to the drive gear 17 and the large-diameter gear 18, which is coaxial with the reduction gear 11 and fixed below the support plate 5, engages with the large-diameter gear. A screw rod 9 fixed to the center of the bowl-shaped friction plate 8 and supported by a bearing 20 so as to be movable only in the vertical direction is screwed into a screw hole 19 provided in the center of the gear 18.

As shown in FIG. 2, the telescopic device 2 is composed of a piston 22 which moves left and right in the cylinder 21 by hydraulic pressure, and a mounting piece 23 at the rear end of the cylinder 21 has a central shaft (not shown) of the right electromagnetic clutch 14. , A mounting piece 24 at the tip of the piston 22 is fixed to a central shaft (not shown) of the electromagnetic clutch 14 on the left side, and a hydraulic pump ( (Not shown) to cylinder
The 21 is configured to operate with hydraulic pressure.

In this case, a hydraulic piston is used for the telescopic device 2. However, an appropriate mechanism such as a so-called electric cylinder, in which an electric rotary bolt is screwed into a nut and the tip of the bolt is moved left and right, is not limited thereto. .

Also, in the second embodiment, instead of connecting the four footboards 1 in a quadrangle in the first embodiment, three footboards are connected by a telescopic device 2 so as to form a triangle as shown in FIG. Thus, a moving device is constituted.

Next, a case of moving on a bar arrangement using the moving device of the first embodiment will be described.

In FIG. 4, in order to advance forward from FIG. A to FIG. B, the friction discs 8 of the footboards 1a and 1b are lowered on the reinforcing bars 10 as shown by chain lines (see FIG. 3). Panels 1a and 1b are reinforced 10
The telescopic device 2a and the leg are connected to each other by connecting the electromagnetic clutch 14 of one of the front (back) footboard 1a and the footboard 1b and connecting the footboards 1a and 1b. While keeping the angle between the telescopic device 2d connecting the boards 1a and 1b at a right angle, and disconnecting the electromagnetic clutch 14 of the front footboards 1c and 1d, the rear footboards 1a and 1b expand and contract as a reaction force support. The front discs 1c, 1d in a state where the pistons 23b, 23d of the devices 2b, 2d are equally extended left and right and the friction discs 8 are pulled up are slid and advanced, and then the friction discs 8 of the foot discs 1c, 1d are moved. The pistons 23b and 23d of the telescopic devices 2b and 2d are lowered on the reinforcing bars 10 and serve as reaction force support members.
Can be moved to the front by pulling the footboards 1a and 1b in a state where the friction disc 8 is pulled up to the position shown by the chain line.

As shown in Fig. A to Fig. F, the footboard 1
The opposite operation may be performed in a state where d and 1c are replaced with the footboards 1a and 1b in FIG.

In addition, in order to move to the right as shown in FIG. A from FIG. D, it is sufficient to move the footboards 1d and 1a sideways while replacing the footboards 1a and 1b in FIG. May perform the opposite operation.

Next, in order to advance forward diagonally from FIG. A to FIG. C, in the same manner as described above, the footboards 1a, 1b, 1d are stopped so as not to move on the reinforcing bars 10, and the footboards 1a The electromagnetic clutch 14 is connected so that the telescopic devices 2a and 2d maintain a right angle, and after disconnecting the electromagnetic clutches of the footboards 1b, 1c and 1d, the footboard 1
d, the telescopic device 2b between 1c, and the telescopic device 2c between the footboards 1d, 1c are evenly stretched, and the footboard 1c is slid to the right forward by 45 degrees and advanced.
Next, the footboard 1c is stopped, and the telescopic devices 2b, 2c are reduced uniformly so that the footboards 1a, 1b, 1d brought into the sliding state are moved to the right by 45 degrees by pulling to the position shown by the chain line. be able to.

In the case of FIG. E, FIG. G, and FIG. I, it is possible to move the camera backward 45 degrees left and left 45 degrees backward by performing an operation symmetrical to the figure C.

Furthermore, in order to move in any direction other than 45 degrees, the expansion and contraction of the telescopic devices 2b and 2c in FIG. Can be done by

A case of moving on a bar arrangement using the moving device of the second embodiment will be described.

In FIG. 5, in order to advance forward from FIG. A to B as shown in FIG.
b ′ is stopped so as not to move on the reinforcing bars, the angle between the telescopic device 2b ′ and the telescopic device 2c ′ is made free, and the front leg 1c ′ is slid and the telescopic device is set. After extending the 2b 'and 2c' evenly, the front leg 1c 'is stopped, the rear leg 1a' and 1b 'are in the sliding state, and the telescopic devices 2b' and 2c 'are evenly reduced so that the chain line is reduced. Can be moved to the position indicated by.

As shown in Fig. A to Fig. C, to move an arbitrary angle to the right front, the footboard 1a 'is stopped, the electromagnetic clutch 14 of the footboard 1a', 1b ', 1c' is disconnected, and the telescopic device 2a ' After controlling the extension ratio of the extension device 2c 'to a length corresponding to the angle in the forward direction and extending the extension device, the footboards 1b' and 1c 'are stopped and the footboard 1a' is slid and the extension device is extended. By controlling the reduction ratio of 2a 'and 2c' to a length corresponding to the angle in the forward direction, the 2a 'and 2c' can be moved to the position shown by the chain line.

In addition, forward movement in an arbitrary direction of 360 degrees can be easily performed by referring to the above method according to the first embodiment.

〔The invention's effect〕

Since no scaffolding is required to move on the bar arrangement as in the past, there is no need to transport, lay or remove the scaffolding, making it easy to move, and freely moving in any direction in 360 degrees It is suitable for places with many obstacles such as construction sites, and since all the footboards are always in contact with the reinforcing bars, the weight of the moving device is distributed on the reinforcing bars, so it is impossible to force the reinforcing bars. It can move reliably without disturbing the reinforcement.

[Brief description of the drawings]

1 is a plan view, FIG. 2 is a front view, FIG. 3 is a front view in which a footboard is enlarged and partially cut, and FIGS. 4A to I are diagrams of a moving device having four footboards. FIG. 5A to FIG. 5D are explanatory views of the operation of the moving device having three footboards. DESCRIPTION OF SYMBOLS 1 ... Leg board, 2 ... Telescopic device, 3 ... Hollow part, 4 ... Sliding board, 8
... Friction disc, 12 ... Motor, 14 ... Electromagnetic clutch

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Minoru Ochiai 8-21-1, Ginza, Chuo-ku, Tokyo Inside the Tokyo Head Office Takenaka Corporation (72) Inventor Kazuo Yamazaki 2--4 Nihonbashi Kayabacho, Chuo-ku, Tokyo No. 9 Inside Sanwa Kikai Co., Ltd. (56) References Jiyo Sho 62-170308 (JP, U)

Claims (6)

(57) [Claims] 1. Four footboards (1) which can be put into a sliding state and a stopped state are connected by a telescopic device (2) so as to be rotatable and fixable, and a front footboard (1) is in a sliding state and a rear footboard. With the footboard (1) in a stopped state, the telescopic device (2) is extended by an extension amount according to the traveling direction, and then the front footboard (1) is in a stopped state, and the rear footboard (1) is in a sliding state. Telescopic device (2)
A method of moving on a bar arrangement in which is reduced by an amount corresponding to the traveling direction. 2. The method for moving on a bar arrangement according to claim 1, wherein the three footboards (1) are connected by a telescopic device (2). 3. An electromagnetic clutch (1) comprising: a sliding board (4) having four friction boards (1) fitted with a friction disc (8) movably up and down;
A device that moves on reinforcing bars connected in a quadrangle by the telescopic device (2) via 4). 4. An apparatus for moving on a bar arrangement according to claim 3, wherein the three footboards (1) are connected in a triangular form by an expansion / contraction device (2). 5. The apparatus for moving on a reinforcing bar according to claim 3, wherein the front friction plate (8) is pulled up to bring the footboard (1) into a sliding state, the electromagnetic clutch (14) is disconnected, and the rear friction is removed. After lowering the board (8) and stopping the footboard (1) to connect at least one electromagnetic clutch (14), each telescopic device (2) is controlled by an extension amount controlled according to the traveling direction. Then, the front friction disc (8) is lowered and the footboard (1) is stopped, the electromagnetic clutch (14) of at least one footboard (1) is disconnected, and the rear friction disc is disengaged. (8) A method of pulling up the footboard (1) to bring the footboard (1) into a sliding state, and then moving the telescopic device (2) on a reinforcing bar arranged to be reduced by a reduction amount according to the traveling direction. 6. A bowl-shaped friction plate (8) formed of a non-slip material such as rubber in a hollow portion (3) of a bowl-shaped sliding plate (4) formed of a slippery material such as steel. Mating,
The footboard (1) by moving the friction board (8) up and down by the motor (12)
The apparatus for moving on a bar arrangement according to claim 3, wherein the apparatus comprises: