JPH07228472A - Revetment concrete block hoisting device - Google Patents

Abstract

PURPOSE:To automatically hoist each concrete block by providing a fixed clamp member driving means on a hoisting frame, and providing a mobile clamp member driving means and a coupling member driving means on a fixed clamp member. CONSTITUTION:When concrete blocks 1 kept in the aligned state are to be hoisted and shifted to a construction site, a coupling member 8 is rotated by 90 deg. to the right or left by a coupling member driving means 11, the direction is tilted to the direction of a concrete block 1, then the front face section 1a of the concrete block 1 is hooked by a fixed clamp member 2 via the coupling member 8. A mobile clamp member 4 is rotated by a mobile clamp member driving means 10 to hook the rear face section 1b of the concrete block 1. When a hoisting frame 6 is lifted, the concrete block 1 is hoisted via both clamp members 2, 4. The fixed clamp member 2 is rotated by a fixed clamp member driving means 9 into the horizontal state, and the concrete block 1 is stably supported and shifted to a construction site.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete bank hoisting device for constructing river dikes, building residential land on sloping land, road side walls in mountainous areas, and the like.

[0002]

2. Description of the Related Art When stacking concrete blocks for seawall protection to construct a river dike, etc., if the concrete blocks are hung up one by one with a wire rope, etc. Since it is necessary to align the surfaces of the blocks with each other, there is a drawback that the alignment takes time and the work efficiency is low.

[0003] Therefore, conventionally, there is a technique described in Japanese Patent Laid-Open No. 2-127392 as a solution to such a drawback. This is a fixed holding member for locking the front portions of a plurality of revetment concrete blocks in alignment with each other, and is rotatably supported by the fixed holding member via a pivot shaft. A movable clamping member that locks the rear surface of the concrete block in a disengageable manner, a lifting frame that rotatably suspends the fixed clamping member via a pivot shaft, and a front and rear direction of the concrete block on the fixed clamping member. And a plurality of engaging members that engage with the front surface of each concrete block. The engaging members are rotated 90 degrees to the right or left. , After inclining its direction according to the direction of the concrete block, the front surface of the concrete block is locked by the fixed clamping member via the engaging member, and the movable clamping member is rotated to move the concrete block. After locking the surface portions, by pulling the lifting frame, the lifting of each concrete block through both of the two sandwiching members, so as to transport to the construction site.

[0004]

According to the above-mentioned conventional structure, since the lifting work of each concrete block is performed manually, it takes time and labor, the work efficiency is low, and the construction period is long.

In view of the above problems, it is an object of the present invention to provide a concrete block hoisting device for revetment which is capable of automatically hoisting each concrete block.

[0006]

The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. The invention according to claim 1 is for a plurality of revetments which are aligned with each other. A fixed holding member 2 for locking each front surface portion 1a of the concrete block 1, and a rotatably pivotally supported by the fixed holding member 2 via a pivot shaft 3, and a rear surface portion 1b of each concrete block 1 A movable holding member 4 for locking and disengaging the fixed holding member 2, a lifting frame 6 for rotatably holding the fixed holding member 2 via a pivot shaft 5, and the fixed holding member 2
And a plurality of engaging members 8 which are rotatably supported by a supporting shaft 7 extending in the front-rear direction of the concrete block 1 and which engage with the front surface portion 1a of each concrete block 1. A fixed clamping member driving means 9 for rotating the pivoting shaft 5 about the pivoting shaft 5 is provided on the hoisting frame 6, and a movable clamping member drive for rotating the movable clamping member 4 about the pivot shaft 3 is driven. The means 10 is provided on the fixed holding member 2, and the engaging member drive means 11 for rotating each of the engagement members 8 about the support shaft 7 is provided on the fixed holding member 2. Is.

According to a second aspect of the present invention, each of the driving means 9, 10, 11 supplies a linear motion driving device 16 such as an electric cylinder, an electric hydraulic cylinder, a hydraulic cylinder, and the driving force of the linear motion driving device 16. A configuration including a fixed gripping member 2, a movable gripping member 4, and a rotary motion transmitting mechanism 18 such as a gear mechanism for transmitting to the engaging member 8 and a chain mechanism is adopted.

[0008]

In the invention of claim 1, when the concrete blocks 1 in the aligned state are hoisted and transferred to the construction site, the engaging member 8 is rotated 90 ° to the right or left by the engaging member driving means 11. Then, after the direction is tilted in accordance with the direction of the concrete block 1, the front surface 1a of the concrete block 1 is locked by the fixed holding member 2 via the engaging member 8 and the movable holding member 4 is moved. After being rotated by the movable holding member driving means 10 to lock the rear surface portion 1b of each concrete block 1, the lifting frame 6
By pulling up, each concrete block 1 is lifted through both holding members 2 and 4, and the fixed holding member 2 is rotated by the fixed holding member driving means 9 to be in a horizontal state, so that each concrete block 1 is stably supported. Then, it can be transferred to the construction site. In this case, the lifting operation of each concrete block 1 can be automatically performed. Therefore, the construction work of the concrete block 1 does not take much time, the work can be performed more efficiently than in the conventional case, and the construction period can be remarkably shortened.

According to the second aspect of the present invention, since the linear motion drive device 16 of each drive means 9, 10, 11 has an elongated shape, it can be easily and compactly incorporated into the fixed holding member 2 and the lifting frame 6. be able to.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a state in which a plurality of concrete blocks 1 aligned with each other are hoisted by a concrete block hoisting device according to an embodiment of the present invention. A fixed holding member 2 for locking each front surface portion 1a of the revetment concrete block 1, and a pivot shaft 3 attached to the fixed holding member 2.
A movable holding member 4 which is rotatably supported via a pivoting member and which locks the rear surface portion 1b of each concrete block 1 in a disengageable manner, and the fixed holding member 2 which is rotatable via a pivot shaft 5. A lifting frame 6 that is hung on the concrete block 1 and a fixed holding member 2 are rotatably supported by a support shaft 7 along the front-rear direction of the concrete block 1, and the front surface portion 1 of each concrete block 1 is supported.
a plurality of engaging members 8 that engage with a, and fixed holding member driving means 9 for rotating the fixed holding member 2 about the pivot shaft 5 is provided on the hoisting frame 6 and is movable. A movable holding member drive means 10 for rotating the holding member 4 about the pivot shaft 3 is provided on the fixed holding member 2, and a member for rotating each of the engaging members 8 about the support shaft 7. The joining member driving means 11 is provided on the fixed holding member 2.

As shown in FIGS. 1 and 2, the fixed holding member 2 has a rectangular box shape which is horizontally long in front view, and has a pair of support rods 13 and 13 extending rearward from the upper end thereof, and each of them. Both sides 6a of the hanging frame 6 in the form of a gate via the pivot shafts 5 projecting from the hanging rods 14 and 14, and the hanging rods 14 and 14 hanging from the supporting rods 13 and 13. 6a. The fixed holding member driving means 9 includes an electric hydraulic cylinder (linear movement driving device) 16 attached to one side 6a of the lifting frame 6, a rack 17 linearly reciprocated by the electric hydraulic cylinder 16, and the rack 17 And a pinion (rotational motion transmission mechanism) 18 fixed to the pivot shaft 5. Reference numeral 19 is a rack supporting block fixed to the side portion 6a.

In the above structure, the electric hydraulic cylinder 1
By driving 6, the fixed holding member 2 can be displaced from the vertical posture shown in FIG. 1 to the horizontal posture shown in FIG. 7. In FIG. 2, reference numeral 20 denotes a hanging rope attached to a hanging ring 21 provided at both ends of the lifting frame 6.

As shown in FIGS. 2 and 3, the engaging member 8 is a support plate 8a that abuts on the front surface 1a of the concrete block 1, and is integrally formed with the support plate 8a, and the front surface of the concrete block 1 is formed. The support plate 8a is rotatably supported by the fixed holding member 2 via a support shaft 7 projecting in the central portion of the support plate 8a. 90 around the support shaft 7
The arc-shaped guide hole 23 is formed over a range of 90 °, and the guide roller 24 protruding from each support plate 8a is formed by the guide hole 2
A connecting rod 25 which is fitted in the guide roller 3 and integrally connects the roller shafts of the respective guide rollers 24 to each other is provided. The engaging member driving means 11 is engaged with the electric hydraulic cylinder 16, the rack 17 which is linearly reciprocated by the electric hydraulic cylinder 16, and the rack 17 as well as the fixed holding member driving means 9, and any one of them is engaged. An arcuate pinion (rotational motion transmission mechanism) 18 fixed to the support shaft 7 is provided. Reference numeral 19 is a rack supporting block fixed to the fixed holding member 2.

In the above structure, the electric hydraulic cylinder 1
By driving 6, the engaging members 8 can be integrally rotated around the support shaft 7 and tilted rightward or leftward.

As shown in FIGS. 3 to 5, the movable holding member 4 has a base end on a pivot shaft 3 rotatably supported by both support rods 13 and 13 of the fixed holding member 2 via bearings 27. Ring part 2
8a is composed of a substantially L-shaped swing arm 28 fixed by a bolt 29, and a cap-shaped engaging member 30 attached to the tip of the swing arm 28. An electric hydraulic cylinder 16 mounted on a substantially U-shaped support frame 32 installed in parallel with the pivot shaft 3 between an auxiliary rod 31 protruding from the holding member 2 and one support rod 13, A rack 17 that is linearly reciprocated by the hydraulic cylinder 16, a pinion (rotational motion transmission mechanism) 18 that meshes with the rack 17, and bevel gears 33 and 34 that transmit the rotational force of the pinion 18 to the pivot shaft 3. It consists of Reference numeral 35 is a rack support block integrally formed with the support frame 32.

In the above structure, the pivot shaft 3 is driven by driving the electric hydraulic cylinder 16 from the phantom line in FIG.
By rotating counterclockwise as shown by the solid line in the figure.
The concave portion 30a of the engaging member 30 is attached to the concrete block 1
It can be fitted to the rear surface portion 1b.

Further, in FIG. 6, reference numeral 37 denotes a rear surface locking device provided on the engaging member 30, which includes a locking frame 38 slidably inserted into the recessed portion 30b communicating with the recessed portion 30a, The guide bolt 39 fixed to the locking frame 38 and the locking frame 38
Is composed of a spring 40 for urging the concave portion 28 toward the concave portion 28, and a locking frame protrusion amount adjusting nut 41 screwed into the guide bolt 39, and the movable clamping member 4 locks the rear surface portion 1b of the concrete block 1. At this time, the locking frame 38 is pressed against the rear surface portion 1b of the concrete block 1 so that the rear surface portion 1b can be reliably locked. The manufacturing dimension error of the concrete block 1 can be absorbed.

In the above embodiment, each drive means 9, 10, 1
Although the electric hydraulic cylinder 16 is used as the linear motion drive device of No. 1, instead of this, for example, an electric cylinder or a hydraulic cylinder may be used. Although the gear mechanism including the rack 17 and the pinion 18 is used as the rotary motion transmission mechanism, a chain mechanism may be used instead of the gear mechanism.

8 (a) and 8 (b) shows an alignment table 43 for aligning a plurality of concrete blocks 1, which is a V-shaped support for supporting each front face portion 1a of the concrete block 1. A front surface support frame 44 in which a surface 44a is continuously formed, a support member 45 extending obliquely upward rearward from the lower end of each V-shaped support surface 44a, and fixed to a rear end portion of each support member 45. And a rear surface support plate 46 that supports the rear surface 1b of the concrete block 1. Further, the length h of one side of each V-shaped support surface 44a is matched with the length H of the short side of the front surface portion 1a of the concrete block 1, and as shown by the solid line or the phantom line in FIG. By simply placing a plurality of concrete blocks 1 on the alignment table 43, the concrete blocks 1 can be aligned in a state of being inclined rightward or leftward.

The stacking procedure of the concrete blocks 1 will be described with reference to FIGS. 9 and 10. As shown in FIG. 9A, a plurality of concrete blocks 1 are tilted leftward or rightward on the alignment table 43. The hoisting device of the present invention, which is hung on the crane 47 and is hung by the crane 47, is brought above the alignment table 43, and the engaging members 8 of the fixed holding member 2 are engaged with the front surface portions 1a of the concrete blocks 1. To combine. Next, the movable holding member driving means 10 is driven to move the movable holding member 4 to the rear surface portion 1b of the concrete block 1.
(See FIG. 6). As a result, each concrete block 1 is sandwiched between the fixed sandwiching member 2 and the movable sandwiching member 4 from the front and the rear (see FIG. 1).

Subsequently, as shown in FIG. 9B, the concrete blocks 1 may be hoisted by a crane 47 via a hoisting device, and the concrete blocks 1 may be transferred to the construction site in this state. In order to transfer the concrete block 1 more reliably, as shown in FIG. 9C, the fixed holding member driving means 9 is driven to bring the fixed holding member 2 into a horizontal posture (see FIG. 7). As a result, the concrete block 1 is placed on the fixed holding member 2, and the concrete block 1 can be transferred safely and reliably.

As shown in FIG. 10A, each concrete block 1 is piled up on the foundation concrete block 48 at the construction site.

Further, as shown in FIG. 10 (b), the concrete block 1 is placed on the alignment table 43 while being tilted in the opposite direction to the above direction, and the engaging member driving means 1 is correspondingly placed.
1, the engaging member 8 is inclined in the same direction as the concrete block 1. After that, the above-described work is repeated, the concrete blocks 1 are piled up on the already-concrete concrete block 1, and the same work is repeated, so that a large number of concrete blocks 1 are formed as shown in FIG. A side wall such as a river embankment can be constructed.

In the above-mentioned stacking procedure, the concrete blocks 1 aligned on the aligning table 43 are hung by the hoisting device of the present invention, but as shown in FIG. A plurality of concrete blocks 1 may be placed on top and aligned.

According to this, the alignment table 43 becomes unnecessary,
Further, the step of aligning the plurality of concrete blocks 1 on the alignment table 43 can be omitted.

In the above embodiment, the lifting device for lifting three concrete blocks 1 has been described as an example, but the present invention also includes a lifting device for lifting two or four or more concrete blocks 1. To do.

[0028]

According to the first aspect of the invention, the lifting work of each concrete block can be automatically performed. Therefore, the work of constructing the concrete block does not require much labor, the work can be performed more efficiently than in the past, and the construction period can be significantly shortened.

According to the second aspect of the present invention, since the linear motion drive device of each drive means has an elongated shape, it can be easily and compactly incorporated into the fixed holding member and the lifting frame.

[Brief description of drawings]

FIG. 1 is a side view of a concrete block hoisting device for revetment according to an embodiment of the present invention.

FIG. 2 is a cutaway front view of the same portion.

FIG. 3 is a cross-sectional view of the same.

FIG. 4 is a cutaway plan view of the same portion.

FIG. 5 is a rear view of the same.

FIG. 6 is a transverse cross-sectional view of the same main part.

FIG. 7 is a side view of the fixed holding member in a horizontal state.

FIG. 8A is a front view of the alignment table, and FIG. 8B is a cross-sectional view of the alignment table.

9A to 9C are schematic explanatory views showing the first half of a concrete block stacking procedure.

10A to 10C are schematic explanatory views showing the latter half of the procedure for stacking concrete blocks.

[Explanation of symbols]

 1 Concrete Block 1a Front Part of Concrete Block 1b Rear Part of Concrete Block 2 Fixed Clamping Member 3 Pivot Shaft 4 Movable Clamping Member 5 Pivot Shaft 6 Lifting Frame 7 Support Shaft 8 Engaging Member 9 Fixing Clamping Member Driving Means 10 Movable Clamping Member drive means 11 Engagement member drive means 16 Electric hydraulic cylinder (linear motion drive device) 17 Rack 18 Pinion (rotational motion transmission mechanism)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area E02B 7/00

Claims (2)

[Claims] 1. A fixed holding member for locking the front surfaces of a plurality of revetment concrete blocks that are aligned with each other, and rotatably supported by the fixed holding member via a pivot shaft. A movable clamping member that locks the rear surface portion of each concrete block in a disengageable manner, a lifting frame that rotatably suspends the fixed clamping member via a pivot shaft, and a concrete block on the fixed clamping member. A plurality of engaging members that are rotatably supported by a support shaft extending in the front-rear direction and that engage with the front surface of each concrete block, and rotate the fixed holding member about the pivot shaft. The fixed holding member driving means for moving the movable holding member is provided on the lifting frame, and the movable holding member driving means for rotating the movable holding member around the pivot is provided on the fixed holding member. For turning around the spindle A concrete block hoisting device for revetment, wherein engaging member driving means is provided on a fixed holding member. 2. Each of the driving means includes a linear motion driving device such as an electric cylinder, an electric hydraulic cylinder, a hydraulic cylinder, and a holding member for fixing the driving force of the linear motion driving device.
2. A rotary motion transmitting mechanism such as a gear mechanism or a chain mechanism for transmitting to the movable holding member and the engaging member.
Concrete block hoisting equipment for seawall protection.