JPH07100974B2 - Concrete compaction equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a concrete compacting mechanism that is driven into a mold.

(Prior Art) Conventionally, for the purpose of molding a wall of a building, for example, by using cast-in-place concrete, a formwork composed of a weir board and a supporting work such as a horizontal end and a vertical end is used. A form vibrating machine is used which directly vibrates the form for compacting the concrete put therein.

(Problems to be solved by the invention) Concrete compaction work is performed by inserting a form vibrator between the dam plate and the lateral end thicker spaced apart from the dam plate. It is carried out by attaching it to a formwork in advance and confirming that the concrete has been poured to a level near the lateral edge thickness and then operating.

By the way, whether or not the concrete has reached the predetermined pouring level is confirmed by the operator hitting the formwork with a mallet and checking the feel and sound produced when hitting it. A large-area formwork requires a large number of workers, and a high-form formwork requires high-altitude work. Furthermore, the attachment and removal of the form vibrator to and from the form also depend on the operator, which also requires a great deal of labor and time, and the form at a high location There is a risk of workers falling when installing and removing the frame vibrator. Furthermore, the above-mentioned method of confirming the pouring level of concrete may result in defective pouring of concrete, which has a significant influence on the quality of the molded body due to insufficient compaction based on false positives.

An object of the present invention is to make it possible to efficiently and safely confirm the pouring level of concrete relating to the compaction work of concrete and install and move the form vibrator.

(Means for Solving the Problems, Actions and Effects of the Invention) The present invention provides a weir plate, which is spaced from the weir plate and vertically spaced from each other and fixed to the weir plate. A compaction device for concrete to be poured into a space defined by a formwork having a plurality of supports provided to electrically detect whether or not the concrete has reached a predetermined driving level. Detection means, a frame that is attached to the supporting structure and extends in the vertical direction, an elevating body that is supported by the frame and can move up and down along the frame, and can be arranged between the dam plate and the supporting structure. And a form vibrator that is hung by a flexible hanger on the elevating body and is movable in a lateral direction perpendicular to the weir plate, and the detection means is a power source. Electric drill and electrode member connected to And an electric member that is installed on the elevating body so as to be movable in the lateral direction and extends in the lateral direction, and an electrode member that penetrates a lower portion of the dam plate, and detects energization between the drill and the electrode member. And a detector for.

According to the present invention, when the electric drill is rotationally operated and moved in the lateral direction, the drill pierces the dam plate and reaches the concrete driving space. This drill forms another electrode member that cooperates with the electrode member. When the concrete is driven to a height position (level) in contact with the drill, both electrode members conduct through the driven concrete, and the detector operates. By confirming the operation of the detector, it can be known accurately and easily that the concrete is filled up to the height position of the drill. The electric drill can be easily and quickly transported to a desired height position by raising the lifting body supporting the electric drill along the frame.

The compaction of the concrete by the form vibrator,
This can be done by arranging the form frame vibrating machine between the supporting structure and the weir plate just below the confirmed concrete pouring level and operating this. The form frame vibrator includes a vertical movement operation of the elevating body along the frame and a lateral movement operation of the form frame vibration device toward the weir plate, whereby the weir plate and the supporting structure are separated from each other. It can be interleaved and locked between them. This eliminates the work required for the operator to install and move the form vibrator according to the conventionally required change in the casting height of the concrete, and saves the labor and time required for this. In addition, it is possible to eliminate the risk of a worker falling due to work at height. Further, when the form vibrator is installed between the dam plate and the supporting structure, the elevating body is moved down by a distance more than a descending distance required for installing the form vibrator, and the form vibrator is moved. Bending can be caused in a suspending tool such as a wire rope to be suspended. This allows
It is possible to block vibration from the form vibrator to the elevating body and to effectively apply the vibration action of the form vibrator to the form and thus to the concrete.

The frame has four struts that pass through the four corners of the rectangle and allows the form vibrator and electric drill to be located inside the frame, which allows the installation of a concrete compactor on the form. Therefore, the form vibrator and the electric drill can be protected from a collision or the like at the time of transportation.

(Example) Referring to FIG. 1 and FIG. 2, there is shown a formwork 10 to which a concrete compacting device described later according to the present invention is applied. The mold 10 is composed of a weir plate 12, and a plurality of pairs of lateral ends 14 which are a plurality of supports which are arranged at intervals with respect to the weir plate 12 and at intervals in the vertical direction and which are attached to the weir plate 12. Have. The formwork 10 further has vertical edges 16 which are spaced apart from each other and which extend in the up-down direction and which are other supports. Each vertical end thickness 16 is between the barrier plate 12 and each lateral end thickness 14 and is in contact with them. Each end thickness 14 and 16 shown in the drawing is made of a steel pipe member. Reinforcing bars 17 are provided in a concrete driving space, for example, for forming a wall, which is defined by a pair of dam plates 12 (only one of which is shown) arranged at a distance from each other and facing each other.
Are arranged.

The concrete compaction device 18 applied to this formwork is a detection means for electrically detecting whether or not the concrete has reached a predetermined driving level, and it is attached to the lateral end thick 14 and vertically. It includes an extending frame 20, an elevating body 22 supported by the frame 20 and capable of ascending and descending along the frame, and a form vibrator 24 suspended by the elevating body 22.

The detection means penetrates the electric drill 26 (see FIG. 5) connected to a power source (not shown) and the lower part of the dam plate 12 to reach the concrete driving space, the electric drill 26 and the electrode. It comprises an ammeter, a voltmeter, and a detector (not shown) such as a light bulb for detecting the electric current through the concrete between the member 28 and the member.

The frame 20 includes two pairs of columns 30 and 32 that pass through the four corners of the rectangle, and a plurality of connecting members 34 and 36 that connect both ends of each column 30 and 32,
It is composed of connecting members 38 and 40 connecting these pairs of columns between these connecting members 34 and 36. A pair of hook-shaped brackets 42 are fixed to the upper ends of the frames 20, more specifically, the upper ends of the pair of columns 30 and 32.
Is attached to the form frame 10 in the up-down direction by hooking on the lateral end thick 14 of the form frame 10. Bracket 42 is the frame
The fixed position (vertical position) with respect to 20 can be changed. A pair of casters 43 is attached to the illustrated frame 20 to facilitate movement on the ground.

The lifting body 22 is suspended from the frame 20 via a wire rope 44. The wire rope 44 has its upper end fixed to the connecting member 34 at the top of the frame 20, and its lower end fixed to the winding drum of the winch 46 arranged at the lower part of the frame 20. The wire rope 44 sequentially engages with the sheave 48 provided on the elevating body 22 and the sheaves 50, 52 provided on the top and bottom of the frame 20 from its upper end to its lower end. The lifting body 22 moves up and down along the frame 20 by the operation of the winch 46. In the illustrated example, the winch 46 is suspended from the connecting member 38.

Referring to FIGS. 3 to 6, the elevating body 22 includes a pair of plates spaced apart from each other and connected to each other.
54 and a partition plate 56 that divides the space defined by the plate into upper and lower parts. The elevating body 22 further has L-shaped plates 58 and 60 extending upward and downward from the partition plate 56, and most of the elevating body 22 including these plates 56 to 60 (hereinafter, referred to as “front portion”). .) Inside the frame, and the remaining small portion (hereinafter referred to as “rear portion”) projects outside the frame. Partition plate 56 and upper L-shaped plate that supports the sheave 48
58 designates a space for accommodating the electric drill 26, and the partition plate 56 and the lower L-shaped plate 60 are the form vibrator 24.
Defines the accommodation space for Therefore, the electric drill 26 and the form shaker 24 include the plates 56-60 and two pairs of columns.
30, 32 protects the concrete compaction device 18 from damage associated with collisions with other objects during movement, for example.

As shown in FIG. 4, four guide members 62 are attached to the lifting body 22, more specifically, to the upper and lower portions of the pair of plates 54, and each guide member 62 has an inner surface on which the columns 30 and 32 face each other. Slidably touches. In addition, an L-shaped plate 64 is fixed to the rear portion of the lifting body 22,
A pair of guide members 66 slidably contacting the outer surfaces of the two columns 30 and 32 located at the rear are attached to the 64.

The form vibrator 24 is suspended by an electric slide device 70 fixed to the lifting body 22 via a suspending tool, a pair of ring-shaped wire ropes 68 in the illustrated example.

Referring to FIG. 5, an electric slide device 70 includes a rack 72 having a circular cross section, a pinion housed in a housing 74, which engages with the rack 72, a motor for applying a rotational force to the pinion, and a speed reducer. And a drive mechanism (not shown) including a device and the like. The rack 72 extends through the plate 60 in the front-rear direction, that is, in the lateral direction perpendicular to the dam plate 12, and the housing 74 is fixed to the plate 60 in front thereof.

The pair of wire ropes 68 are hung on the front portion of the rack 72 at a distance from each other in the lateral direction and are fastened to the rack 72 with a band 69. Therefore, by operating the electric slide device 70 to move the rack 72 with respect to the housing 74, the form vibrator 24 suspended by the wire rope 68 can be moved in the lateral direction. A pair of proximity switches 71 and a metal plate 73 are provided to determine the movement start point and the movement end point of the rack 72. The proximity switches 71 are fixed to the plate 60, and are attached to a support plate 75 extending rearward with a space therebetween in the extension direction (lateral direction) of the rack 72. The metal plate 73 is attached to the rear end of the rack 72 so as to face the detection heads of the proximity switches 71.

The electric drill 26 is accommodated in the accommodating space defined by the plates 56 and 58 while being arranged and fixed in a cylindrical body 76 having a rectangular cross-sectional shape. The barrel 76 is formed of an electrically insulating material, which allows the electric drill 26 to be drilled.
Leakage from the charged electric drill 26 due to energization of 78 is prevented. The open end surface of the cylindrical body 76 is directed forward and backward, and the drill 78 of the electric drill 26 is directed toward the dam plate 12, that is, forward. Partition plate 56 to base plate 80
Is fixed, and the bottom portion of the cylindrical body 76 is slidably fitted in the groove extending in the lateral direction provided in the base plate 80. The cylinder 76 also has a connecting member 82 at its top.
Is connected to a rack 86 of an electric slide device 84 of the same type as the electric slide device 70. The connecting member 82 includes a tubular portion 88 having a circular cross-sectional shape surrounding a part of the rack 86 and a tubular portion 89 having a substantially triangular cross-sectional shape, and the pin 90 penetrates the tubular portion 88 and the rack 86. are doing.
The rack 86 of the electric slide device 84 penetrates the plate 58 in the lateral direction, and the housing 92 thereof is fixed to the plate 58 behind the plate 58. Therefore, by operating the electric slide device 84 to move the rack 86 in the lateral direction, the electric drill 26 can be moved back and forth together with the tubular body 76.

As with the rack 72, a pair of proximity switches 94 and a metal plate 96 are provided to determine the movement start point and movement end point of the rack 86. Proximity switch 94 is a plate
The support plate 98 is fixed to the rear plate 58 and extends rearward and is attached to the support plate 98 at intervals in the extending direction of the rack 86. Also,
The metal plate 96 is attached to the rear end of the rack 86 so that it can face the detection heads of the proximity switches 94.

Further, in order to determine the upper limit and the lower limit of the movement of the lifting body 22, a pair of proximity switches 100 are arranged on one plate 54 at intervals vertically, and their detection heads are directed to the outside. At the top and bottom of the frame 20, there are L-shaped metal plates 10 that can face the detection heads of proximity switches.
2 is installed.

When using the concrete compactor 18, the form shaker 24
The winch 46 is operated to raise the elevating / lowering body 22 until it is located above the appropriate lateral thickness 14. Whether or not the form vibrator 24 has risen above the target lateral edge thickness 14 can be known by using, for example, the proximity switch 101 (FIG. 3). Proximity switch 101, plate 5
It is supported by a support plate 103 fixed to the front end faces of 4, 56, extends substantially parallel to the rack 72 of the electric slide device 70 in parallel with the rack, and its detection head is directed forward. The proximity switch 101 outputs when it faces the horizontal edge 14 while the lifting body 22 is moving up. Therefore, the height position of the form vibrator 24 can be known by detecting the output signal of the proximity switch 101 in consideration of the moving speed of the lifting body 22.

Next, the electric slide device 70 is operated to move the rack 72 to insert the form vibrating unit 24 between the lateral end thick 14 directly below the form vibrating unit 24 and the dam plate 12, Frame vibrator 24 to weir plate 12
Abut. At this time, the metal plate 73 is the proximity switch on the left.
The output from the proximity switch 71 is obtained by facing the switch 71. The operation of the electric slide device 70 is stopped based on this output. Then, the lifting / lowering body 22 is lowered. As a result, the form vibrator 24 is inserted between the dam plate 12 and the lateral end thickness 14 and locked to both. When the elevating body 22 is further lowered, the wire rope 68 bends. After the appropriate amount of bending occurs, the lowering of the lifting / lowering body 22 is stopped.

After that, the electric slide device 84 is operated to advance the cylinder 76 forward, and at the same time, the drill 78 of the electric drill 26 is rotated in one direction. The drill 78 pierces the barrier plate 12 and reaches the concrete driving space inside the form 10. At this time, the metal plate 96 faces the proximity switch 94 on the left side in the drawing,
The output from the proximity switch 94 is obtained. The operation of the electric slide device 84 is stopped based on this output.

The concrete that has been driven into during or after the positioning of the drill 78 is drill 78 as another electrode member.
, The electric current is conducted between the drill 78 and the lower electrode member 28 through the concrete, and it can be known from the outputs of the detectors connected to both electrode members that electricity has been applied.

After checking the concrete driving level, move the rack 86 of the electric slide device 84 in the opposite direction and drill 78.
Is rotated in the other direction to return the cylindrical body 76 to the original position (position shown in FIG. 5). When the tubular body 76 returns to the original position, the metal plate 96 faces the proximity switch 94 on the right side (right side in the drawing), and the proximity switch 94 outputs. The operation of the electric slide device 84 is stopped based on this output.

Next, the form vibrator 24 is operated to vibrate the form 10 to compact the concrete. Since the wire rope 68 is bent, the vibration of the form vibrator 24 is not transmitted to the lifting body 22. This prevents the dispersion of the vibration action of the form vibrator 24 and enables effective compaction, and the frame 2
0, damage, destruction, etc. due to vibration of the lifting body 22 etc. are prevented.

After the concrete is compacted, the elevating body 22 is raised to pull out the form vibrator 24 from between the weir plate 12 and the lateral end thickness 14, and further, the rack 72 of the electric slide device 70 is moved backward to form the mold. The frame vibrator 24 is returned to the original position (position shown in FIG. 5). When the form shaker 24 returns to its original position, the metal plate 73
Faces the proximity switch 71 on the right side (the right side in the figure), and the proximity switch 71 outputs. The operation of the electric slide device 70 is stopped based on this output. This enables the form vibrator
24 is housed in the lifting body 22.

After that, the elevating body 22 is moved to a higher level, and the level detection of concrete and the compaction of concrete are repeated in the same manner as described above.

Note that reference numerals 104 and 106 in the drawing denote connecting plates which are other means for connecting both plates 54.

[Brief description of drawings]

1 and 2 are schematic right side and rear views, FIG. 3, FIG. 4, FIG. 5 and FIG. 6 of a mold and a concrete compaction device of the present invention attached to the mold. The drawings are a front view, a plan view, a right side view and a rear view with a part cut away, of an elevating body of a concrete compaction device. 10: Formwork, 12: Dam plate, 14: Horizontal edge thick (supporting work), 18: Concrete compaction device, 20: Frame, 22: Elevating body, 24: Form vibrator, 26, 28: Electric drill and Electrode member (detection means),
32,34: props.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nao Nagao 226 Gougaya, Miyu-cho, Toyokawa-shi, Aichi (56) References JP-A-2-285151 (JP, A) JP-A-2-157359 (JP, A) ) Japanese Patent Laid-Open No. 63-274503 (JP, A) Shoukai 62-78405 (JP, U)

Claims (3)

[Claims] 1. A form having a weir plate and a plurality of supports which are arranged at intervals to the weir plate and at intervals in the vertical direction and are fixed to the weir plate is defined. A compacting device for concrete to be poured into a space, the detecting means for electrically detecting whether or not the concrete has reached a predetermined driving level, and a vertical direction attached to the formwork. A frame extending to the frame, an elevating body that is supported by the frame and can be moved up and down along the frame, and a form vibrator that can be arranged between the dam plate and the supporting structure and is flexible to the elevating body. And a form vibrating device that is movable in a lateral direction perpendicular to the dam plate, wherein the detection means is an electric drill connected to a power source and an electrode member, Mounted on the lifting body so that it can move in any direction. And the electrode member extending through the lower portion of the electric drill and the sheathing board extending Kiyoko direction, comprising a detector for detecting the current between the electrode member and the drill, concrete compaction device. 2. The frame according to claim 1, wherein the frame is composed of four columns that are spaced from each other and connected to each other, and the electric drill and the form vibrator are located in the frame. The described device. 3. The device according to claim 1, wherein the suspender is a wire rope.