JP3225449B2 - Concrete placing machine between floor PC boards - 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 placing machine between floor PCs for performing concrete placing, filling and leveling work between the PC plates in a floor concrete work using PC boards.

[0002]

2. Description of the Related Art Floor concrete construction using a PC board involves:
After placing concrete on the narrow beam located between the PC boards, the concrete is filled, and the finishing work such as roughing, leveling, and ruler work is sequentially performed. Traditionally, this work
First, concrete of an appropriate amount is poured by a bucket or a pump, and filling and finishing work are performed. Each of these works largely depends on the manual work of each worker, and many workers having tools or the like go out to the worksite for each work.

[0003]

However, in the case of the above-mentioned floor concrete work, the following problems have arisen. That is, in the above-mentioned construction, it is necessary to cast concrete on a narrow beam upper portion located between the PC boards, and there is a problem that a lot of time is spent for the casting and the area around the work site is soiled by the scattered cast concrete. In addition, each work is a separate work alone, and the next work is started after the previous work is completed, so that a long time is spent on the work, which causes a reduction in work efficiency. Also,
In addition to heavy work such as placing, filling and leveling concrete, there is also a problem that the leveling and ruler must be performed by a worker in a middle posture, resulting in great dissatisfaction with workability.

[0004] As a countermeasure against the scattering of concrete, there is a case in which a strip-shaped scattering prevention plate is provided near the concrete supply port so that the concrete placing position is surrounded by the scattering prevention plate. However, it is necessary to adjust the distance between the pair of scattering prevention plates according to the distance between the PC plates. Usually, the scattering prevention plate is supported at several places by the support, so that every time the separation distance is adjusted, all of these support must be moved, and the operation is troublesome. Therefore, the conventional method of placing concrete using the shatterproof plate is based on the design of the building.
Even if the width of the small concrete is changed, it is necessary to stop the casting and change the interval between the scattering prevention plates, which causes a decrease in work efficiency.

[0005] On the other hand, the above-mentioned construction requires skilled workers for each work, and requires a large number of various skilled workers until completion, and it is difficult to secure human resources due to a shortage of specialized workers in recent years. In addition to the possibility of extending the construction period, labor costs have increased, leading to an increase in construction costs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem, and in floor construction using a PC board, the floor of a narrow beam located between the PC boards is not stained by the cast concrete scattered. The concrete placement, filling, roughing, leveling, and ruler work are performed by one unit to improve work efficiency, and the concrete placement position is changed with the movement of the concrete supply position. It is an object of the present invention to provide a concrete placing apparatus between floor PC boards, which can more reliably prevent concrete from scattering by covering the inner side surface of the opposing PC board with a moving plate. .

[0007]

[0008]

The invention according to claim 1 is
In floor construction using PC boards, narrow space between PC boards
Concrete is poured, filled, leveled, and
A device for performing finishing work, using the driving force of the prime mover
A self-propelled traveling mechanism and a detachably mounted
Of the poured concrete, and the concrete
A vibrator for smoothing the surface of the heat sink.
In the concrete placing apparatus between floor PCs, the anti-scattering mechanism is provided with two traveling mechanisms in parallel on the same horizontal plane, and each anti-scattering mechanism is provided with a bracket detachably provided on the traveling mechanism. A link provided on the bracket so as to be horizontally rotatable via a first hinge, a scatter prevention plate provided on the link so as to be horizontally rotatable via a second hinge, and a scatter prevention plate. A guide plate which is fixed by projecting downward from the lower end and abuts on the side of each PC board facing the concrete casting position, and opposes by supporting each scattering prevention plate slidably in its thickness direction. And a restricting member that restricts sliding of the scattering prevention plate in a thickness direction at a desired position.

The invention according to claim 2 is a floor using a PC board.
During the construction, the narrow beam above the PC
For cleat casting, filling, leveling and finishing
Equipment that is capable of self-propelled operation by the driving force of the prime mover
And a casting concrete detachably provided on the traveling mechanism.
Plate scattering prevention mechanism and smooth surface of cast concrete
A floor-to- PC concrete placing apparatus comprising a vibrator and a frame-like frame in which a scattering prevention mechanism is arranged in parallel with the concrete placing surface above a predetermined distance from the concrete placing surface. A rotatable rotating shaft erected along the direction of concrete casting on the frame, and concrete scattered fixed to the rotating shaft so as to be integrally rotatable and supported in a downwardly suspended state. Prevention plate,
A vertical axis movably provided on the upper portion of the frame, a vertical axis elevating means, a link member rotatably pin-connected to the vertical axis in a vertical plane, and a vertical axis A support bar rotatably pin-connected to the shatter-preventing plate and loosely fitted so as to be displaceable in at least the driving width direction; a shatter-preventing plate urging means for urging the shatter-preventing plate outward; A guide plate provided at the lower end of the plate so as to be swingable about an axis parallel to the rotation axis, hung downward, and abutted on a side surface of each PC plate facing the concrete placing position; And a guide plate biasing member that constantly biases the guide plate in the PC plate direction.

[0010] The invention according to claim 3 is a floor using a PC board.
During the construction, the narrow beam above the PC
For cleat casting, filling, leveling and finishing
Equipment that is capable of self-propelled operation by the driving force of the prime mover
And a casting concrete detachably provided on the traveling mechanism.
Plate scattering prevention mechanism and smooth surface of cast concrete
In the concrete placing device between floor PCs comprising a vibrator for making the concrete, the scattering prevention mechanism is provided with a long bolt arranged along the concrete placing width direction and a parallel with the concrete placing direction. Two anti-scattering plates provided slidably in the length direction of the long bolt while holding, anti-scattering plate urging means for constantly energizing the pair of anti-scattering plates in a direction away from each other; A guide plate which is fixed by projecting downward from the lower end of the plate and abuts on the side of each PC plate facing the concrete casting position, and slides in the length direction of the long bolt of the shatterproof plate is desired. It is characterized by comprising a regulating member for regulating the position.

[0011]

According to any one of the first to third aspects of the present invention,
Also , without contaminating the surroundings of the casting part with the casting concrete, the concrete work on the concrete floor of the PC board, which leads to concrete placement, filling, leveling, and leveling on the narrow beam located between the floor PC boards. Perform as a simultaneous operation on one device.

According to the first aspect of the present invention, during the operation of the concrete placing device between floor PC plates, the pair of guide plates, the separation distance of which is set in advance at a desired interval, is operated by the action of the scattering prevention plate urging means. By being constantly pressed to the side of the PC board facing the concrete placement position, the PC moves in the width direction of the concrete placement along the side as the apparatus advances, and the shatterproof plate expands and contracts with the shatterproof plate urging means. It moves in the driving width direction following the side of the PC board within the range. The initial setting of the separation distance between the opposing guide plates is such that, after confirming the maximum movement position of the scattering prevention plate to the outside in the concrete placing width direction, the extendable range of the scattering prevention plate urging means includes the maximum movement position. To When the opposing anti-scattering plates move close to and away from each other, the link rotates in the horizontal direction, and the anti-scattering plate moves back and forth in the concrete placing direction.

According to the second aspect of the present invention, during the operation of the concrete placing device between floor PC boards, a pair of guide plates having a predetermined separation distance set in advance is operated by the action of the scattering prevention plate urging means. By being constantly pressed on the side of the PC board facing the concrete placement position, if the PC board moves in the width direction of concrete placement along the side as the apparatus advances, the shatterproof plate slides with respect to the support bar. Since it is allowed, it moves in the driving width direction following the side surface of the PC board in the expansion and contraction range of the scattering prevention plate urging means. The initial setting of the separation distance of the shatterproof plate is such that the vertical axis is moved to a position where the pair of the shatterproof plates is at a desired separation distance, and is fixed at an appropriate height by a lifting means, and the concrete of the shatterproof plate is Casting width direction
After confirming the maximum movement position to the outside, the extendable range of the scattering prevention plate urging means is set to include the maximum movement position. If the vertical axis is moved up and down, the link member rotates in the vertical plane, the support bar supports the shatterproof plate, and the support position of the shatterproof plate of the shatterproof plate urging member moves in the width direction of the concrete casting width. Change.

According to the third aspect of the present invention, during the operation of the concrete placing device between floor PC boards, the pair of guide plates, the separation distance of which is set in advance at a desired interval, is operated by the action of the scattering prevention plate urging means. By being constantly pressed to the side of the PC board facing the concrete placement position, the PC moves in the width direction of the concrete placement along the side as the apparatus advances, and the shatterproof plate expands and contracts with the shatterproof plate urging means. It moves in the driving width direction following the side of the PC board within the range. At least the minimum separation distance of the guide plate pair is set by setting the sliding range of the scattering prevention plate in the length direction of the long bolt with the regulating member.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. In the figure, the symbol A indicates the floor P of the present embodiment.
It is a concrete placing device between C plates. The floor PC board-to-plate concrete placing apparatus A includes a traveling mechanism 1 capable of self-propelled by the driving force of a prime mover, a bracket 2 detachably provided on the traveling mechanism 1, and a bracket 2 opposite to the traveling mechanism 1. Is provided with two concrete scattering prevention mechanisms A 'arranged in parallel on the same horizontal plane, and a vibrator 4 for smoothing the surface of the cast concrete.

As shown in FIGS. 1 (a) and 1 (b), the scattering prevention mechanism A 'includes a link 6 provided on the bracket 2 via a first hinge 5 so as to be horizontally rotatable. An anti-scattering plate A "is provided on the link 6 so as to be horizontally rotatable via a second hinge 7. Further, each anti-scattering plate is provided at the front of the anti-scattering mechanism A '. A slide bar 9 for slidably supporting the A "in its thickness direction to connect the opposing anti-scattering plates A" close to and away from each other.
Are arranged parallel to the width direction of the concrete.

The floor-to-PC concrete casting device A is configured so that an operator can operate it while walking behind the device, and runs on the upper surface of the PC plate P with wheels 11 protruding on both sides in the width direction to scatter. The prevention mechanism A ′ and the vibrator 4 are advanced. At the rear of the traveling mechanism 1, auxiliary wheels 12 that can be folded in the vertical direction are mounted symmetrically. The auxiliary wheels 12 are set when the direction of the concrete placing device A between floor PC plates is changed. Vibrator 4
Is provided with a diaphragm having a dimension slightly larger than the width between the PC boards P on which the concrete is to be cast. The vibrator 4 is detachable, and can be appropriately replaced with an appropriate size. And vibrator 4
With the vibration plate set on the upper surface of the PC board P, the upper surface of the concrete filled between the PC boards P, P is moved and finished.

The lower surfaces of the first hinge 5, the link 6 and the second hinge 7 are respectively located on the upper surface of concrete, and the surface level of concrete supplied between the shatterproof plates A ", A" is determined by PC. It functions as a shaving board that matches the board P. The anti-scattering plate A "is an elongated rectangular plate-shaped member, and is always positioned parallel to the upper surface of the PC board P by the action of the guide plate 8. The anti-scattering plate A" is surrounded by the anti-scattering plate A ". A horizontally movable bucket 13 is suspended along with the concrete placing device A between the floor PC and the floor PC,
At the lower end of the bucket 13, a valve 14 for adjusting the amount of discharged concrete is provided. The bucket 13 is supported by a support structure (not shown), and a scattering prevention mechanism A ′,
It can be moved integrally with A '. Note that the bucket 13 may be provided separately from the concrete placing apparatus A between floor PC boards, for example, by suspending and supporting the bucket 13 with a crane.

The slide bar 9 has, at both ends in the longitudinal direction, springs (splash prevention plate urging means) 15 for constantly urging the anti-scatter plate A "outward in the width direction in which it is to be cast. The spring 15 has a bearing ring 16 fixed inward from the scattering prevention plate A ″ of the slide bar 9.
Is held between the side surfaces of the anti-scattering plate A ", and the urging force is always applied to the anti-scattering plate A". The supporting ring 16 is provided on the slide bar 9.
The mounting position of the slide bar 9 in the length direction can be easily set manually by the operator because it is detachably provided by bolt connection or the like. The guide plate 8
A member having an L-shaped cross section, which is fixed to the upper outer surface of the shatterproof plate A ″ with one side outside in the driving width direction and the other side upward. The slide bar 9 is loosely fitted in the opened through hole, and the portion directed upward of the guide plate 8 projects above the shatterproof plate A ", and the concrete shatterproof effect of the shatterproof plate A". Therefore, the guide plate 8 determines the support position of the scattering prevention plate A ″ by the portion of the guide plate 8 facing outward in the driving width direction being brought into contact with the upper surface of the PC plate P. ing.

Hereinafter, concrete placing device A between floor PCs
The function and effect of the method will be described. According to the above-described floor PC inter-panel concrete casting device A, since the casting position is covered with the scattering prevention plates A ", A", the surroundings are not stained with the splashing concrete scattered around. Casting and filling concrete on top of narrow beams located between floor PC boards P
The work of PC board floor concrete work leading to roughing and leveling is performed as a simultaneous work with one device. That is, as shown in FIGS. 1 and 2, the concrete placing device A between floor PCs moves the concrete supplied from the valve 14 along with the first hinge 5 and the link 6 while moving in the direction of the arrow in the drawing. After leveling with the second hinge 7 evenly, the vibrator 4 finishes the surface. Therefore, the floor PC inter-panel concrete casting device A can consistently perform from supply of concrete to be poured to finishing.

During the concrete placing operation, each of the guide plates 8, 8, which have been set to a desired distance in advance, is connected to the PC plates P, P located on both sides of the concrete placing position by the action of the spring 15. By being constantly pressed to the respective side surfaces, even if the side surfaces of the respective PC boards P are undulated and fluctuated in the direction of the driving width with the progress of the apparatus, the side surfaces of these PC boards P are Move along the concrete placement width direction within the range of expansion and contraction of the spring 15, and as a result, the scattering prevention plate A ″ moves in the placement width direction following the PC board P side surface. Since the lower surface of the prevention plate A "is brought into contact with the upper surface of the PC board P by its own weight, each of the scattering prevention plates A" is appropriately positioned in the height direction, and automatically becomes the first and the first.
The lower surface levels of the second hinges 5, 7 and the link 6 are adjusted. When the opposing anti-scattering plate A "approaches and separates, the link 6 rotates in the horizontal direction, and the anti-scattering plate A" moves back and forth in the concrete placing direction. When the shatterproof plates A ″ and A ″ are in the maximum proximity, the link 6 and the shatterproof plate A ″ are in a straight line, as shown by the alternate long and short dash line in FIG. The dimension in the direction is extended.

The initial setting of the separation distance between the opposing guide plates 8, 8 is such that the maximum movement position of the shatterproof plate A "to the outside in the width of concrete placement is confirmed, and the range in which the spring 15 can extend and contract is the maximum. Set to an appropriate position including the movement position.

Therefore, the concrete-casting apparatus A between floor PCs can perform the work of concrete construction of PC floors, including concrete casting, filling, leveling, and leveling, as one simultaneous operation by one apparatus. Needless to say, since the shatterproof plates A "are constantly urged outward in the width direction of the casting in the range of expansion and contraction of the spring 15, each of the shatterproof plates A" can be used for the PC boards P and P on which concrete is to be cast. By moving along the side, it is always located at an appropriate position. For this reason, it is not necessary to change the installation position of the shatterproof plate A ", and it is not necessary to stop the concrete-casting device A between the floor PCs. The work efficiency of casting is improved.

It should be noted that a concrete placing device A between floor PCs
Uses the first hinge 5, the link 6 and the second hinge 7 to level the concrete. However, if a shaving plate is provided between the scattering prevention mechanism A 'and the vibrator 4, the first The need for leveling by the hinge 5, the link 6, and the second hinge 7 is eliminated, so that each of these members can be formed in a simple shape. On the other hand, the floor PC board concrete placing apparatus A may automatically fix the support ring 16 using a cylinder or the like. Also, by rotating the link 6, the separation distance between the scattering prevention plates A ", A" can be changed. Therefore, a cylinder or the like is provided on the bracket 2 so that the distance between the scattering prevention plates A ", A" can be reduced. The adjustment of the distance may be performed automatically.

Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. In the figure, reference numeral B denotes a concrete-casting device between floor PC boards of the present embodiment. The floor-to-PC concrete placing apparatus B is different from the floor-to-PC concrete placing apparatus shown in FIGS. 1 and 2 in that a scattering prevention mechanism denoted by reference numeral 21 is mounted in place of the scattering prevention mechanism A ′. A shaving plate mechanism 22 is provided between the valve 14 for supplying concrete and the vibrator 4.
In the figure, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof will be simplified.

As shown in FIGS. 1 to 5, the shatterproof mechanism B 'is provided with a frame-like frame 23 arranged a predetermined distance above the concrete casting surface and parallel to the concrete casting surface.
And a rotatable rotating shaft 24 erected in the frame 23 along the direction in which concrete is poured. The rotatable rotating shaft 24 is fixed to the rotating shaft 24 so as to be integrally rotatable, and is supported in a downwardly suspended state. Concrete shatterproof plate B "and the frame 23
And a nut (elevating means) 27 for raising and lowering the vertical shaft 26 and fixing the position thereof, and a pin coupled to the vertical shaft 26 so as to be rotatable in a vertical plane. Link member 28, and the link member 28
The support bar 29 is rotatably connected to a pin in a vertical plane, and is loosely fitted to the shatterproof plate B "so as to be displaceable at least in the driving width direction, and biases the shatterproof plate B" outward. And a spring (shatter prevention plate urging means) 30.

At the lower end of the scattering prevention plate B ",
A guide plate 31 is provided so as to be swingable about an axis parallel to 4 and is hung downward, and is in contact with a side surface of each PC board P facing the concrete placing position. The guide plate 31 is constantly pressed outward by a leaf spring (guide plate urging member) 32 fixed to the inner surface of the scattering prevention plate B ″.

As shown in FIG. 3, the squid plate mechanism 22 is provided with a sword plate main body 33 disposed along the driving width direction and a downward pressing while maintaining the squid main body 33 in the mounting direction. And a shaving plate pressing portion 34. Oyster body 3
Reference numeral 3 denotes a rear bottom portion of the scattering prevention mechanism B ', which is supported by the shaving plate pressing portion 34.

Hereinafter, a concrete placing apparatus B between floor PCs
The function and effect of the method will be described. According to the above-described floor PC inter-panel concrete casting device B, since the casting position is covered with the scattering prevention plates B ", B", the surroundings are not stained with the splashed concrete. Casting and filling concrete on top of narrow beams located between floor PC boards P
The work of PC board floor concrete work leading to roughing and leveling is performed as a simultaneous work with one device. That is, in the concrete placing apparatus between floor PCs, the scraper mechanism 22 sequentially levels the upper surface of the concrete supplied from the valve 14 as it advances, and then the vibrator 4 finishes the surface. Accordingly, the floor-to-PC concrete placing apparatus can consistently perform from supply of concrete to be placed to finishing of the concrete by one unit.

During the concrete placing operation, each of the guide plates 31, 31, which are set at a desired distance in advance, are placed on both sides of the concrete placing position by the action of the spring 30 and the leaf spring 32. By being constantly pressed to the respective side surfaces of the boards P, P, the springs 30 move along the side faces of the respective PC boards P in the direction of the concrete placing width along the side faces of the PC boards P as the apparatus advances, and as a result, scatter. The prevention plate B ″ moves in the driving width direction following the side surface of the PC plate P.

The initial setting of the separation distance between the scattering prevention plates B ", B" is performed by moving the vertical shaft 26 to a position where the pair of the scattering prevention plates B "is at a desired separation distance, and using a nut 27 to set an appropriate distance. At this time, each scattering prevention plate B "is slidably supported in the length direction of the support bar 29, and the biasing forces of the springs 30, 30 abutting on both side surfaces are balanced. Stabilizes at a certain position. When the vertical shaft 26 is moved up and down, the link member 28 rotates in the vertical plane, and the support bar 29 supports the scattering prevention plate B ″ while the spring 30 around the rotation shaft 24 supports the scattering prevention plate B ″. Is changed in the width direction of the concrete. The distance between the scattering prevention plates B ", B" fluctuates in the range of expansion and contraction of the spring 30 and is not fixed to the working width.
If concrete accumulates between B ", the concrete spreads the shatterproof plates B", B "and spreads the shatterproof plates B", B ".
Is turned, and the width becomes larger than the width initially set by the vertical shaft 26 and the nut 27.

Therefore, the scattering prevention mechanism B 'can perform the work of concrete construction of the PC board floor including the concrete placement, filling, leveling, and leveling as a simultaneous operation with one device. Shatterproof plate B "
Are always urged outward in the direction of the placing width in the range of expansion and contraction of the spring 30, so that the respective scattering prevention plates B ″ always follow the side surfaces of the PC plates P, P on which concrete is to be placed, so that Therefore, it is not necessary to perform a special operation for changing the installation position of the scattering prevention plate B ″, and the scattering prevention mechanism B ′ is used to change the installation position of the leakage prevention plate 25. Since there is no need to stop concrete pouring, the work efficiency of concrete pouring is improved.

In addition, the scattering prevention mechanism B 'has a structure in which the upper part of the scattering prevention plate B "is inclined and covers in the direction of the center of the casting concrete supply position.
Prevention of concrete leakage on the upper surface is more complete. Also, since the initial setting of the separation distance between the scattering prevention plates B ", B" is performed only by turning the nut 27, the concrete placing device between floor PC plates shown in FIGS. It is easier to set the support positions of the scattering prevention plates B ", B" than in the case where it is necessary to adjust the position.

The scattering prevention mechanism B 'may have a configuration other than that described above as long as the distance between the scattering prevention plates B "and B" can be varied. That is, the scattering prevention plate B "
May be provided on the rotation shaft 24 so as to protrude in the diameter direction thereof, and the support bar 29 may penetrate into a portion protruding above the rotation shaft 24. In this case, the support bar 29 may be directly connected to the vertical shaft 26. The vertical shaft 26 may be moved up and down using a driving force of a cylinder or the like. The vertical holding means of the guide plate 31 is a plate spring 32
Alternatively, a link mechanism that is driven in conjunction with the elevation of the vertical shaft 26 may be used.

Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. In the drawing, reference numeral C denotes a concrete-casting apparatus between floor PCs of the present embodiment. The floor PC inter-plate concrete placing device C includes a traveling vehicle 41 and a traveling vehicle 41.
A hopper 43 provided at the center and provided with a casting port 42 capable of adjusting the amount of cast concrete at the bottom, and a hopper 43 placed at the center of the bottom of the traveling vehicle 41 and projecting from the bottom of the traveling vehicle, A scattering prevention mechanism C ′ for preventing the scattering of
A vibrator 45 for smoothing the leveled concrete surface and a lifting mechanism 46 for raising and lowering the scattering prevention mechanism C ′, which are located at the rear of the bottom of the traveling carriage 41.
And is provided.

The traveling vehicle 41 has a base 47 having a rectangular frame shape.
And wheels 48 attached to the four corners of the base 47. The discharge port 42 is configured such that the amount of concrete discharged is adjusted by rotating a handle 49 protruding from the side of the traveling vehicle 41.

The anti-scattering mechanism C 'is slidable in the length direction of the long bolt 50 while maintaining parallel to the direction in which the concrete is poured and the long bolt 50 disposed along the width of the concrete. Provided two scattering prevention plates C ",
C ", a spring (dispersion preventing plate urging means) 52 which constantly urges the pair of the scattering prevention plates C", C "away from each other, and protrudes downward from the lower end of each scattering prevention plate C". And a guide plate 53 abutting on the side of each PC board P facing the concrete casting position.

The long bolt 50 is disposed horizontally on the bottom of the base 47. In addition, the long bolt 50 is stably supported by the lifting mechanism 46 via bolt suspension brackets 54, 54 fitted at both ends in the length direction. Long bolt 5
Reference numeral 0 is slidably fitted in each bolt suspension bracket 54 in the length direction. Each of the bolt suspension brackets 54 is a member having a U-shaped cross section, is disposed with the opening facing downward, and is provided with an elevating mechanism on the upper surface of the back located opposite to the opening. It is fixed to the tip of a support member 55 protruding downward from 46. Further, each bolt suspension bracket 54 includes a bolt suspension bracket 54,
The fixing nuts 56 and 56 screwed to the long bolt 50 inside the pair of 54 restrict the movement in the direction approaching each other. Further, a shaving plate K for leveling the surface of the concrete supplied between the guide plates 53 is fixed to each bolt suspension bracket 54 located rearward in the concrete placing direction (left side in FIG. 7). .
The lower end surface of the shaving plate K coincides with the lower end surface of the scattering prevention plate C ″.

The anti-scattering plate C "is a rectangular plate, and is disposed with its long side parallel to the direction of concrete casting. The anti-scattering plate C" is provided at the upper end. The long bolt 50 is slidably fitted in the length direction, but the position of attachment to the long bolt 50 is inside the opening of the bolt suspension bracket 54, and the length of the bolt suspension bracket 54 relative to the long bolt 50 is large. Following the relative movement in the vertical direction, the supporting position in the length direction of the long bolt 50 is changed.

The springs 52 are interposed in the gaps formed between the opposing inner side surfaces of the bolt suspension bracket 54 and the shatterproof plate C ″, and exert a biasing force in parallel with the long bolts 50. As shown in Fig. 6, two springs 52 are interposed in each gap vertically.

The guide plate 53 is a plate made of rubber, and is fixed to the lower end of the inner surface of the opposing anti-scattering plates C ", C", and the lower end protrudes downward. In each guide plate 53, the side surface of the PC board P slides on the outer side surface.

The elevating mechanism 46 includes a support member 55, a support column 57 fixed at a distance from the support member 55, a rotatable connection to each of the support member 55 and the support column 57, and a support for the support column 57. The end opposite to the member 55 is the floor P
And a lever 58 extended to the outside of the C-panel concrete placing device C. As shown in FIG. 7, the support members 55 are substantially U-shaped members formed by assembling rods, and are provided on both sides in the width direction of the apparatus C for placing concrete between floor PC boards. Are directed downward, and bolt suspension brackets 54 are fixed to the respective tips protruding downward. A connecting portion with the lever 58 is protruded from the outer surface on the closed side of each support member 55 and protrudes. Further, the support member 55 is constantly pressed downward by the action of a pressing spring 59 that applies a pressing force between the bolt suspension brackets 54 and the traveling carriage 41 in the vertical direction. Therefore, the elevating mechanism 46 is normally configured such that the support member 55 is located below the limit of the working range of the pressing force of the pressing spring 59, but when the operator turns the lever 58 downward, the lever Support member 55 in principle
Is raised against the pressing force of the pressing spring 59 with the upper end of the column 57 as a fulcrum, and the entire anti-scattering mechanism C ′ suspended on the support member 55 via the bolt suspension bracket 54 is lifted upward. It has become.

Hereinafter, the operation and effect of the apparatus C for placing concrete between floor PCs of this embodiment will be described. According to the concrete installation device C between floor PC boards, concrete is poured, filled, and roughly laid on the upper portion of the narrow beam located between the floor PC boards P without being soiled by the scattered concrete around the casting area. The work of PC board floor concrete work leading to leveling and leveling is performed as a simultaneous work by one device. That is,
The floor-to-PC concrete placing apparatus C moves the concrete supplied from the discharge port 42 forward and vibrator 45
After leveling, the shaving board K finishes the surface. Therefore, the concrete placing device C between floor PC boards
Can consistently perform from supply of concrete to be poured to finishing.

During the concrete placing operation, each of the guide plates 53, 53, which are set at a desired distance in advance, are connected to the PC plates P, P located on both sides of the concrete placing position by the action of the spring 52. By being constantly pressed to the respective side surfaces, the springs 52 move in the width direction of the concrete placing along the side surfaces of the respective PC boards P as the apparatus advances.
Moves in the range of expansion and contraction of the
It moves in the driving width direction following the side of the plate P. Also,
At this time, since the lower surface of each anti-scattering plate C "is pressed against the upper surface of the PC board P by the pressing force of the pressing spring 59, each anti-scattering plate C" is appropriately positioned in the height direction, and The lower surface is located on the same plane as the upper surface of PC board P.

The initial setting of the distance between the opposing guide plates 53, 53 is performed by confirming the maximum movement position of the shatterproof plate C ″ to the outside in the concrete placing width direction and then setting the spring 5
2. The fixing position of the fixing nut 56 is set so that the extendable range becomes an appropriate position including the maximum movement position.

Therefore, the concrete floor-to-PC concrete placing apparatus C can perform the concrete concrete flooring work from concrete placing, filling, roughing, and leveling as a simultaneous operation by one apparatus. Needless to say, since the shatterproofing plates C "are constantly urged outward in the width direction of the casting in the range of expansion and contraction of the spring 52, each of the shatterproofing plates C" can be used for the PC boards P and P on which concrete is to be cast. By moving along the side, it is always located at an appropriate position. Therefore, it is not necessary to change the installation position of the shatterproof plate C ″, and it is not necessary to stop the concrete-casting device C between the floor PC boards for the installation position change operation. In addition, the efficiency of the casting operation is improved.
Since the direction can be easily changed by the operation of the elevating mechanism 46, the work efficiency of concrete placing is further improved.

[0047]

As described above, the above-mentioned claims 1 through
According to the apparatus for placing concrete between floor PC boards according to any one of the above items 3, since the traveling mechanism, the scattering prevention mechanism, and the vibrator are integrally provided, the concrete placement,
The work of PC board floor concrete work, which includes filling, leveling, and leveling, can be performed simultaneously by one apparatus.

[0048] According to the floor PC plates concreting device according to claim 1, since the scattering prevention plate is always biased in the striking設幅outwardly stretchable range of scattering prevention plate biasing means, each scattering As the prevention plate moves along the side of the PC board on which concrete is to be cast, it is always located at an appropriate position. As a result, no special work is required to change the installation position of the shatter prevention plate. There is no need to stop the concrete placing machine between floor PC boards for the change work,
It has an excellent effect that the work efficiency of concrete casting is improved.

[0049] According to the floor PC plates concreting device according to claim 2, since the scattering prevention plate is always biased in the striking設幅outwardly stretchable range of scattering prevention plate biasing means, each scattering The prevention plate moves in the width direction following the side of the PC board on which concrete is to be poured, so that it is always located at the appropriate position. As a result, no special work is required to change the installation position of the shatter prevention plate. Needless to say, it is not necessary to stop the concrete placement machine between floor PCs for the installation position changing work, so that the work efficiency of concrete placement is improved.

In the concrete-casting apparatus between floor PCs according to the second aspect of the present invention, it is easy to support such that the upper part of the shatterproof plate is inclined and covered in the direction of the center of the concrete supplying position. In addition, the prevention of leakage of cast concrete on the upper surface of the PC board is more complete. In addition, since the initial setting of the separation distance between the opposing scattering prevention plates can be performed only by setting the vertical axis support position by the lifting / lowering means, the operation is further simplified.

According to the third aspect of the present invention, the scatter prevention plate is constantly urged outward in the width direction of the laying in the range of expansion and contraction of the scatter prevention plate urging means. The prevention plate moves in the width direction following the side of the PC board on which concrete is to be poured, so that it is always located at the appropriate position. As a result, no special work is required to change the installation position of the shatter prevention plate. Needless to say, since it is not necessary to stop the concrete placement machine between the floor PCs for the installation position changing work, the work efficiency of concrete placement is improved, and the scattering prevention mechanism is raised by the lifting mechanism. Since the direction change is easy, there is an excellent effect that the work efficiency of concrete placing is further improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention, in which (a)
3 is a plan view, and FIG. 3B is an enlarged sectional view showing a scattering prevention mechanism.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a plan view showing a second embodiment of the present invention.

FIG. 4 is a side view of FIG. 2;

FIG. 5 is a front view showing a scattering prevention mechanism.

FIG. 6 is a front view showing a third embodiment of the present invention.

FIG. 7 is a side view of FIG. 6;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 traveling mechanism 2 bracket 4 vibrator 5 first hinge 6 link 7 second hinge 9 slide bar 10 guide plate 15 spring 22 rake plate mechanism 23 frame 24 rotation axis 26 vertical axis 27 nut 28 link member 29 support bar 30 spring Reference Signs List 31 guide plate 32 leaf spring 41 traveling cart 45 vibrator 46 elevating mechanism 50 long bolt 52 spring 53 guide plate A concrete placing device between floor PC plates A 'scattering preventing mechanism A "scattering preventing plate B concrete placing device between floor PC plates B 'shatterproof mechanism B "shatterproof board C Concrete floor placing machine between floor PCs C' shatterproof mechanism C" shatterproof board

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shuo Takahashi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (56) References Japanese Utility Model No. 6-18552 (JP, U) (58) ) Surveyed field (Int.Cl. ⁷ , DB name) E04G 21/02 103

Claims (3)

(57) [Claims] An apparatus for placing, filling, leveling, and finishing concrete on a narrow beam upper portion located between PC boards in floor construction using PC boards,
It has a traveling mechanism capable of self-running by the driving force of the prime mover, a mechanism for preventing the cast concrete from being scattered detachably provided on the traveling mechanism, and a vibrator for smoothing the surface of the cast concrete. In the concrete placement machine between floor PCs , the scattering prevention mechanism uses two
Arranged in parallel on a plane, each scattering prevention mechanism is a traveling mechanism
A bracket detachably provided on the bracket, and the bracket
, Which is horizontally rotatable via a first hinge.
And the link can be rotated horizontally via a second hinge.
The provided shatterproof plate and the lower end of the shatterproof plate
And fixed in the direction of concrete placement of each PC board
Guide plate abutting on the side facing the installation, and each scattering prevention plate
Is supported by being slidable in the thickness direction.
Slide bar for connecting the anti-scattering plate
And slide the shatterproof plate in the thickness direction to the desired position.
And a regulating member regulated by
Concrete placing machine between floor PC boards . 2. In a floor construction using a PC board, the PC board is used.
Pour concrete into the upper part of the narrow beam located between
A device for performing filling, leveling and finishing operations,
A traveling mechanism capable of self-propelled by the driving force of the prime mover, and
Detachable concrete splash prevention mechanism
And a vibe to smooth the surface of the cast concrete
And a scattering prevention mechanism is provided at the concrete placing surface.
Arranged parallel to the concrete casting surface above a fixed distance
Frame-like frame and how to cast concrete into the frame
A rotatable rotation shaft erected along the direction,
It is fixed so that it can rotate integrally, and is supported in a state where it hangs down.
Concrete shatterproof plate and the top of the frame
And a vertical axis movably provided on the vertical axis.
A step and a pin that is pivotally connected to a vertical axis in a vertical plane.
Link member and a pin rotatably in a vertical plane on the link member.
Combined and at least the driving width direction of the scattering prevention plate
The support bar, which is loosely fitted to the
Anti-scattering plate urging means that urges the
A swingable centering on an axis parallel to the rotation axis;
And hang down to the concrete casting position of each PC board.
A guide plate that is in contact with the facing side
An apparatus for placing concrete between floor PC boards, comprising: a guide plate biasing member that biases in the PC board direction . 3. In a floor construction using a PC board, the PC board
Pour concrete into the upper part of the narrow beam located between
A device for performing filling, leveling and finishing operations,
A traveling mechanism capable of self-propelled by the driving force of the prime mover, and
Detachable concrete splash prevention mechanism
And a vibe to smooth the surface of the cast concrete
In the floor PC plates concreting device comprising; and a regulator, shatterproof mechanism, concreting width direction
Long bolts installed along
Slide in the length direction of the long bolt while maintaining the
Of the two scattering prevention plates and the pair of scattering prevention plates
Anti-scattering plate biasing that always biases in the direction that separates each other
Means, and fixed by projecting downward from the lower end of the shatterproof plate.
On the side of each PC board facing the concrete casting position.
The length direction of the guide plate to be touched and the long bolt of the scattering prevention plate
And a regulating member for regulating a slide to a desired position at a desired position .