JP3995258B1 - Hanger for articulated block and construction method of articulated block - Google Patents

Abstract

The present invention provides a hanger for a articulated block, which is capable of lifting a plurality of articulated blocks at once, transporting them to a construction surface and installing them, and having excellent work efficiency and work safety.
SOLUTION: An elongated member body 11 provided on an inner surface with an insertion member 12 inserted into an insertion hole 4 on a side surface of a plurality of articulation blocks 1, and a lifting wire provided upright on an upper surface of the suspension member body. 25, a pair of left and right first support columns 13, a first rotation member 15 supported to be rotatable with respect to the first support column, and a block support bar horizontally supported at the tip of the first rotation member. 17, a second column 14 that is erected on the upper surface of the hanger body and rotatably supports the second rotating member 18, and is provided at the tip of the second rotating member, and is a locking hole in the block support bar. 20 is provided with a lock pin 21 that can be inserted into 20.
[Selection] Figure 6

Description

  The present invention relates to a hanging tool for lifting an articulated block used for river revetment, slope covering, river bed consolidation, irrigation drainage channel and the like.

There is an articulated block as a block used for river revetment and slope covering (for example, refer to Patent Document 1). The articulated block is used by connecting the blocks with reinforcing bars, connecting the blocks in the vertical direction or the horizontal direction through the reinforcing bars in the insertion holes provided in each block, and using the weight of the connected blocks as a whole. It is designed to be fixed on slopes and riverbeds.
JP 2004-132101 A

  By the way, as shown in FIG. 9, the articulated block is constructed by laying mats or sheets on the slope 60 and the operator M manually using the rope 5 from above the slope 60. One by one is slid along the slope 60 on the mat or sheet one by one and connected by the connecting rebar 6 one by one. The articulated block is heavy (several tens of kilograms), and the work of the operator manually unloading one by one using a rope is very inefficient and there is a problem in terms of work safety.

  The present invention has been made in view of the above circumstances, and a first object is to lift a plurality of articulated blocks at a time, transport them to a construction surface, and install them, thereby improving work efficiency and work safety. The object is to provide an excellent hanging tool for articulated blocks. A second object is to provide a hanger for an articulated block having a simple structure.

  Moreover, the 3rd objective is to provide the construction method of the articulation block using the hanging tool for articulation blocks.

In order to solve the above-mentioned problems, the articulated block lifting tool according to claim 1 of the present invention has a shape in which a convex part is formed on the upper part of the block base part, and a plurality of tens of kg as a single unit. A hanger that lifts one articulated block at a time,
A long suspension body provided on the inner surface with an insertion member inserted into each insertion hole opened on the front and rear side surfaces of the block base portion facing each other in a plurality of articulated blocks,
A pair of left and right first struts that are erected on the upper surface of the hanger body and on which the lifting wire is hooked;
A first rotating member rotatably supported via a connecting bolt with respect to the upper end of each first support;
A block support bar made of a long cylindrical material horizontally supported at the tip of each first rotating member;
A second strut that is erected on the upper surface of the hanger body and that rotatably supports the second rotating member at the upper end via a connecting bolt ;
A lock pin provided at the tip of the second rotating member , inserted into and locked in a locking hole formed in the upper surface of the block support bar, and locking the support state of the block support bar with respect to the articulated block; And
The connection bolt on the second rotation member side that is the center position of the rotation locus of the lock pin rather than the connection bolt on the first rotation member side that is the center position of the rotation locus of the block support bar at the lock hole position. There Ri upper position near,
Each insertion hole of the side surfaces of the plurality of articulated blocks with plugged the plug member of the suspender body, the first rotating member is rotated, each of the articulated blocks, hanger body and the opposite block A block support bar made of a long cylindrical material is brought into contact with the upper portion of the base portion and the side surface of the convex portion of the upper portion , and the second rotation member is rotated to lock the lock pin with respect to the lock hole of the block support bar. the insert and locked, has been to lock the support state of the block support bar for each articulated blocks,
A plurality of articulated blocks are configured to be lifted in the locked state.

  The hanging tool for the articulated block according to claim 2 of the present invention is capable of hooking one end of the connecting member to the block support bar and the other end of the connecting member to the middle of the second rotating member, The block support bar is pulled up as the second rotating member rotates in the unlocking direction of the lock member.

The construction method of the articulated block according to claim 3 of the present invention uses the articulated block hanging tool according to claim 1,
In addition to inserting the insertion member of the hanger body into each insertion hole on the side surface of a plurality of articulated blocks of several tens of kg, which has a shape in which a convex portion is formed on the upper portion of the block base portion, By rotating the rotating member, the block support bar made of a long cylindrical material is brought into contact with the upper part of the block base part on the opposite side of the suspension body and the side surface of the convex part of the upper part of each articulated block. After that, the second rotation member is rotated, and a lock pin is inserted into and locked in the lock hole of the block support bar to lock the support state of the block support bar with respect to each articulated block. Process,
In the same locked state, a plurality of articulated blocks are lifted with a lifting wire together with a lifting tool, conveyed to a predetermined position on the slope to be constructed, and lowered to a predetermined position on the slope, and then the first rotating member is connected to the connecting bolt. Rotating around, removing the lock pin from the lock hole, releasing the lock state of the block support bar for each articulation block at once, and removing the hanger from each articulation block;
Inserting a linear connecting member into the insertion hole of each articulation block, and connecting each articulation block;
It is characterized by having.

  As described above, according to the hanging tool for the articulated block according to the present invention, by using the insertion hole opened on the side surface of the articulated block, a plurality of articulated blocks are lifted at a time on the construction surface. It can be transported and installed, and has the effect of being excellent in work efficiency and safety during construction of the articulated block.

  Moreover, the structure of the hanging tool can be simplified, and the production cost of the hanging tool can be suppressed.

  Furthermore, according to the construction method of the articulated block according to the present invention, by using the hanging tool for the articulated block, the work efficiency and safety at the time of constructing the articulated block are excellent, and the construction cost is greatly reduced. There is an effect that can be achieved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 8 show an embodiment of the present invention, FIG. 1 is an overall perspective view of a hanging tool according to the present invention, and FIG. 2 is a state in which the hanging tool of the present invention is set to a plurality of articulated blocks. FIG. 3 is a perspective view showing a state before a plurality of articulated blocks are lifted by using the present hanging tool. In these drawings, reference numeral 1 denotes a continuous block, and reference numeral 10 denotes a hanging tool according to the present invention.

  The articulated block 1 has a substantially square trapezoidal shape and a shape in which a convex portion 3 is formed on the upper portion of the block base portion 2. The articulation block 1 is provided with two insertion holes 4 that open to the front and rear side surfaces of the block base portion 2 and extend in parallel with the block bottom surface. The articulated block 1 is configured such that a plurality of or many articulated blocks 1 are connected by inserting connecting reinforcing bars 6 shown in FIG.

  As shown in FIG. 1, the hanging tool 10 has a hanging tool body 11 made of a long steel square tube material. On the front surface of the hanging tool body 11, a set of rod-like insertion members 12 such as deformed steel bars that can be inserted into the insertion holes 4 of the articulation block 1 are fixedly attached by means such as welding. One set of the insertion members 12 is provided as many as the articulated blocks 1 suspended at a time. In the illustrated example, as many as five articulated blocks 1 are provided. The number of articulation blocks 1 is arbitrary as long as it is two or more.

  On the upper surface of the hanger body 11, first struts 13 and 13 made of L-shaped steel are erected near both ends, and second struts 14 made of L-shaped steel are also erected at the center position. The center second support column 14 has a height that is approximately twice or more the height of the first support column 13. The first support column 13 and the second support column 14 are attached and fixed to the upper surface of the hanger body 11 by means such as welding.

  Near one upper end of each first support column 13, one end of a rotating member 15 made of L-shaped steel is rotatably attached via a connecting bolt 16. A block support bar 17 made of a long steel material made of steel is attached and fixed to the other ends of the rotating members 15 by means such as welding. This block support bar 17 has substantially the same length as the hanger body 11 and is arranged in parallel with the hanger body 11, and between the hanger body 11, as shown in FIGS. 2 and 3, The articulation block 1 is supported with the articulation block 1 interposed therebetween.

  One end of a rotating member 18 made of L-shaped steel is rotatably attached to the upper end of the second support column 14 via a connecting bolt 19. At the other end of the rotating member 18, one end of a lock pin 21 that can be inserted and locked into the lock hole 20 formed on the upper surface of the block support bar 17 is fixedly attached by means such as welding. The lock pin 21 is provided at a right angle downward with respect to the axial direction of the rotating member 18.

  A hook 22 for attaching a lifting wire 25 is attached to the upper end of each first support column 13. Further, one end of the chain 23 is attached near the lock hole 20 of the block support bar 17, and the other end of the chain 23 is hooked to a horizontal hooking member 24 that is fixedly attached to the tip of the rotating member 18. It is possible.

  Next, the usage method and effect | action of the hanging tool 10 of the said structure are demonstrated.

  First, the hanging tool 10 is set to a plurality of articulated blocks 1 arranged in series (five in the illustrated example). 2 and 3 show a state in which the hanging tool 10 has been set. First, in a state where the block support bar 17 of the hanging tool 10 is pulled up, the insertion members 12 protruding inward from the hanging tool body 11 are respectively inserted deeply into the insertion holes 4 facing each articulated block 1, The hanger body 11 is positioned and arranged with respect to the articulated block 1.

  Next, as shown in FIG. 4, the rotating member 15 is rotated counterclockwise in the figure, the block support bar 17 is lowered, and the side of each articulated block 1 opposite to the suspension body 11. In this state, as shown in FIG. 5, the rotating member 18 is rotated counterclockwise in the figure, and the lock pin 21 of the central arm member 18 is locked in the locking hole of the block support bar 17. The block support bar 17 is locked with respect to each articulated block 1. Thereby, the support state of the insertion member 12 of the hanger body 11 and the block support bar 17 with respect to each articulated block 1 is locked. Thereby, the lifting tool 10 is set in each articulation block 1, and the preparation for lifting is completed.

  Next, as shown in FIG. 6, the plurality of articulated blocks 1 are lifted together with the lifting tool 10 at once by the lifting wire 25. As shown in FIG. 7, the wire 25 extends from the distal end of the swing arm 51 of the crane vehicle 50, and the plurality of articulated blocks 1 are lifted together with the hanging tool 10 by the operation of the crane vehicle 50. It is transported along the slope 60 and lowered to a predetermined position on the slope 60.

  When lowered to a predetermined position on the slope 60, the rotating member 18 is rotated around the connecting bolt 19 at the upper end of the second support column 14 in the clockwise direction of FIG. The locked state of the insertion member 12 of the hanger body 11 and the block support bar 17 with respect to the node block 1 is released at once. When the chain 23 shown in FIG. 1 is hooked on the horizontal hooking member 24 of the rotating member 18, the block support bar 17 is also pulled up in conjunction with the raising of the rotating member 18.

  After that, each insertion member 12 of the hanger body 11 is extracted from the insertion hole 4 of each articulation block 1, the hoisting tool 10 is lifted back to the original position by the crane vehicle 50, and the next articulation block 1 is lifted. Prepare for work.

  According to the hanging tool 10 of the present embodiment, as shown in FIG. 6, when the articulated block 1 is lifted, the hanging tool main body 11 in which the insertion member 12 is inserted into the insertion hole 4 and the block support bar 17 are connected. The node block 1 is supported.

The suspender 10 is the block support bars 17, of the connecting bolt 16 of the center position O ₁ and comprising a first rotational member 15 side of the turning locus K1 of the locking hole 20 located, rotation locus of the locking pin 21 since K2 of the center position O ₂ to become a second pivot member 18 side of the connecting bolt 19 is in its upper position, the lock pin 21 of the front end of the second rotating member 18, the block of the tip of the first rotating member 15 The support bar 17 is restricted from rotating in the pulling direction (clockwise direction in FIG. 8). As a result, only by inserting the lock pin 21 into the locking hole 20 of the block support bar 17, the block support bar 17 is locked so as not to be lifted, and the lifting device main body 11 with respect to the articulated block 1 at the time of lifting shown in FIG. The support posture of the block support bar 17 can be reliably locked.

  By operating the crane vehicle 50, a plurality of articulated blocks 1 can be installed on the slope 60 at once using the lifting tool 10, and the construction of the articulated blocks 1 can be performed more efficiently than the conventional method. It can be done and work safety can be secured.

  In the conventional method shown in FIG. 9, the installation of the articulating block to the slope is 600 pieces per day, and the work was performed by 20 to 30 people, while using the hanging tool of the present invention, 800 to 10,000 pieces per day could be carried out by five people. As a result, it was confirmed that the working time was greatly shortened, the construction cost was greatly reduced, and safe work could be secured.

  The suspension tool for articulation blocks according to the present invention can be widely used for river revetment, slope covering, river floor consolidation, etc. as a suspension tool capable of lifting a plurality of articulation blocks at once. is there.

The perspective view which shows the hanging tool for articulated blocks which concerns on this invention, The top view which shows the state which set the hanging tool of FIG. 1 with respect to several articulated block, The perspective view which shows the state before lifting with a wire from the set state of the hanging tool shown in FIG. A side view showing a state in which the insertion member of the hanger body is inserted into the insertion hole of the articulation block and the block support bar is lowered with respect to the articulation block; The side view which shows the state which inserted the lock pin in the hole for a lock of a block support bar from the state shown in FIG. 4, and locked the support state of the suspension body with respect to a connection block and a block support bar, The side view which shows the state which lifts several articulation blocks from the locked state shown in FIG. An overall view showing the operation of installing a plurality of articulated blocks at predetermined positions on a slope by using cranes, The figure for explaining the lock action with the lock pin, It is explanatory drawing which shows the conventional method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Articulated block 2 Block base part 3 Convex part 4 Insertion hole 5 Rope 6 Connection reinforcement 10 Hanging tool 11 Hanging tool main body 12 Insertion member 13 1st support | pillar 14 2nd support | pillar 15, 18 Turning member 16, 19 Connection bolt 17 Block Support bar 20 Locking hole 21 Lock pin (locking member)
22 Hook 23 Chain 24 Horizontal latch member 25 Wire 50 Crane 51 Swivel arm 60 Slope K1 Rotation locus of the block support bar at the lock hole position K2 Rotation locus of the lock pin M Worker O ₁ Rotation locus K1 Center of O ₂ Center of rotation trajectory K2

Claims (3)

A lifting tool having a shape in which a convex part is formed on the upper part of the block base part and lifting a plurality of articulated blocks of several tens of kg at a time,
A long suspension body provided on the inner surface with an insertion member inserted into each insertion hole opened on the front and rear side surfaces of the block base portion facing each other in a plurality of articulated blocks,
A pair of left and right first struts that are erected on the upper surface of the hanger body and on which the lifting wire is hooked;
A first rotating member rotatably supported via a connecting bolt with respect to the upper end of each first support;
A block support bar made of a long cylindrical material horizontally supported at the tip of each first rotating member;
A second strut that is erected on the upper surface of the hanger body and that rotatably supports the second rotating member at the upper end via a connecting bolt ;
A lock pin provided at the tip of the second rotating member , inserted into and locked in a locking hole formed in the upper surface of the block support bar, and locking the support state of the block support bar with respect to the articulated block; And
The connection bolt on the second rotation member side that is the center position of the rotation locus of the lock pin rather than the connection bolt on the first rotation member side that is the center position of the rotation locus of the block support bar at the lock hole position. There Ri upper position near,
Each insertion hole of the side surfaces of the plurality of articulated blocks with plugged the plug member of the suspender body, the first rotating member is rotated, each of the articulated blocks, hanger body and the opposite block A block support bar made of a long cylindrical material is brought into contact with the upper portion of the base portion and the side surface of the convex portion of the upper portion , and the second rotation member is rotated to lock the lock pin with respect to the lock hole of the block support bar. the insert and locked, has been to lock the support state of the block support bar for each articulated blocks,
The articulated block lifting tool is configured to lift a plurality of articulated blocks in the locked state.   One end of the connecting member can be hooked with respect to the block support bar, and the other end of the connecting member can be hooked with respect to the middle of the second rotating member, so that the second rotating member rotates in the unlocking direction of the lock member 2. The articulated block hanger according to claim 1, wherein the block support bar is pulled up. Using the articulated block hanging tool according to claim 1,
In addition to inserting the insertion member of the hanger body into each insertion hole on the side surface of a plurality of articulated blocks of several tens of kg, which has a shape in which a convex portion is formed on the upper portion of the block base portion, By rotating the rotating member, the block support bar made of a long cylindrical material is brought into contact with the upper part of the block base part on the opposite side of the suspension body and the side surface of the convex part of the upper part of each articulated block. After that, the second rotation member is rotated, and a lock pin is inserted into and locked in the lock hole of the block support bar to lock the support state of the block support bar with respect to each articulated block. Process,
In the same locked state, a plurality of articulated blocks are lifted with a lifting wire together with a lifting tool, transported to a predetermined position on the slope to be constructed, and lowered to a predetermined position on the slope, and then the first rotating member is connected to the connecting bolt. Rotating around, removing the lock pin from the lock hole, releasing the lock state of the block support bar for each articulation block at once, and removing the hanger from each articulation block;
Inserting a linear connecting member into the insertion hole of each articulation block, and connecting each articulation block;
A method for constructing an articulated block characterized by comprising:

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