JP4009967B2 - Block boundary construction method such as walkway - Google Patents

Description

  The present invention relates to a method for constructing a block boundary formed by arranging boundary blocks in a line between a pedestrian carriage and a roadway.

  Between the sidewalk and the roadway, in order to prevent automobiles from freely entering the sidewalk, a large number of concrete boundary blocks are arranged in a line, with a height of about 10 to 35 cm and a length of about A block boundary of about 60 cm to 240 cm is formed.

When the size of the boundary block increases, the weight of the boundary block increases correspondingly. There are many cases where one boundary block exceeds 100 kg, and a heavy block reaches 400 kg. When constructing a block boundary using heavy boundary blocks, the boundary blocks are suspended and moved one by one with a crane or the like, and at this time, at least one is usually placed on each of the front and rear ends of the boundary block. A human worker is attached to change the direction of the operator or to reverse the vertical posture.
As publicly known data indicating the technical level, there is one as shown in Patent Document 1.

JP 2002-332608 A

  When building a block boundary using a relatively heavy boundary block, as described above, one or more workers are attached to the front and rear sides of one boundary block, which increases labor costs. The present invention aims to solve this problem.

In order to achieve the above object, according to the block boundary construction method of the present invention, as described in claim 1, a straight constant cross-sectional shape that is long in the front-rear direction is formed, and the center of gravity is located at each of the front and rear end faces. A boundary block in which a straight hole facing forward and backward is formed in the vicinity, a straight bar member having a specific length inserted into each of the straight holes, and a straight shape in a state of being inserted into each of the straight holes It has a pair of hook members that are hooked simultaneously on the outwardly projecting portions of the bar members, and has a hook support member that holds these hook members at a specific interval, and applies a suspension force to the hook member and the hook support member A boundary block suspension provided with a suspension force imparting portion for carrying out, and a state where one end of the two straight bar members projects outwardly into a straight hole on each of the front and rear end faces of the boundary block And then the two A state in which a pair of hook members are hooked on each of the one end portions of each of the rod-shaped rod members, and then the suspension block is applied to the suspension force application portion and the boundary block is moved to the boundary construction position. Thus, a large number of boundary blocks are arranged in a line in the front-rear direction, and in this arrangement, when other boundary blocks are adjacent to the existing boundary block by its suspension movement by the boundary block lifting tool, The first end of the straight bar member inserted in the straight hole on the existing block side of the other boundary block is inserted into the straight hole on the other boundary block side of the existing block. It is a feature.

The present invention is further embodied as follows. That is, as described in claim 2, the thickness dimension of the hook member is made to a size within the range of 10 mm to 20 mm, and is already installed. When another boundary block is adjacent to the boundary block by the suspension movement of the boundary block lifting tool, the gap between one end in the front-rear direction of the existing boundary block and one end in the front-rear direction of another boundary block adjacent thereto The dimension is made larger than the thickness dimension of the hook member, and after the other boundary block is disposed, the boundary block suspension is lowered and then the hook member is moved in the left-right direction. The hook member of the boundary block suspension is connected to the existing boundary block and the other boundary block from the straight bar members inserted in the straight holes on the end faces in the front-rear direction of the other boundary block. It is to implement to disengage without displacing the click.

According to the above-described present invention, the following effects can be obtained.
In other words, according to the first aspect of the present invention, a single worker is attached to the boundary block . Below, the front / rear end face of the boundary block can be moved to a position close to the front / rear end face of another boundary block , and the top / bottom can be reversed as necessary. Boundary block (the latter block) in which the outward projecting portion of the straight bar member inserted into the straight hole on the one end face of the boundary block (the former block) is already placed on the ground plane and than it is possible to stationary one side of the end face of the former block is inserted into the straight hole before and after the former block at a specific spacing with respect to the latter block direction of precise clear distinction shape, Bro It is possible to construct a clause boundary with less labor costs.
In constructing such a block boundary, after placing one end face of one boundary block close to one end face of another boundary block, the boundary blocks are not displaced, and the boundary blocks are not displaced. The lifting device can be easily removed from the outward projecting portion of the straight member on the front and rear end faces of the boundary block on which the hook is suspended.
Furthermore, a straight bar member inserted in a bridging manner between the adjacent straight holes of each block between adjacent ones of the boundary blocks arranged in a straight line is between these adjacent boundary blocks in the front-rear direction. It will be in a state where it is embedded in mortar or asphalt filled in.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the following effect can be obtained. That is, when the boundary blocks are arranged on one line, each boundary block is obtained. the using hanger for boundary block, a straight rod member being inserted into straight hole in the longitudinal direction on one side of which while down hanging, which the straight while already in proximity to the boundary block located By inserting into the hole , the currently suspended boundary block can be accurately positioned, and the gap between the opposing end faces of this block and the already disposed boundary block has a size within the range of 10 mm to 20 mm. Can be made.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a boundary block which is a block boundary material according to the present invention, FIG. 2 is a perspective view showing a mold for forming the boundary block, etc., and FIG. 3 is a view for lifting the boundary block. FIG. 4 is a view showing a boundary block suspension, FIG. 4 is a view showing an example of use of the boundary block suspension, and FIG. 5 is a perspective view showing the block boundary.

To implement the block boundary construction method according to the present invention, first, a necessary number of boundary blocks 1 as shown in FIG. 1 are created.
The boundary block 1 is made of concrete (including mortar), is elongated in the front-rear direction f1, is straight in the front-rear direction f1, and has the same cross-sectional shape at any position in the length direction. The front and rear straight holes 1a and 1b are formed in the vicinity of the center of gravity of the front and rear end faces.

  More specifically, the length in the front-rear direction f1 is about 60 cm to 240 cm, but this tends to be gradually increased from the viewpoint of improving work efficiency. The cross-sectional shape when cut in the left-right direction is generally a trapezoid, but is not limited to this. The size of the straight holes 1a and 1b is determined in relation to the weight of the boundary block 1. For example, the diameter is about 15 mm to 20 mm, and the depth is about 70 mm.

For creating the boundary block 1, a form 2 as shown in FIG. 2 is used.
The mold 2 is composed of a main body 3 and front and rear end surfaces 4a and 4b. The main body 3 is formed in a state in which a plurality of (two in the illustrated example) straight grooves 3a are juxtaposed in the left-right direction by bending a steel plate, and each groove 3a is formed from the left and right side surfaces a1 and the lower surface a2. The cross-sectional shape when the groove 3a is cut in the left-right direction is a constant cross-sectional shape that is an inverted trapezoid having the same shape at an arbitrary position in the front-rear direction f1. The end surface portions 4a and 4b are formed as rectangular plates that are separably attached to the front and rear end surfaces of the main body portion 3, and the rod members 5 facing front and rear are located in the vicinity of the center of gravity of the front and rear end surfaces of each groove portion 3a. Is fixed in an overhang shape.

  When the boundary block 1 is created, concrete is filled in the groove portions 3a of the mold 2 and when the filled concrete is sufficiently solidified, the front and rear end face portions 4a are separated from the main body portion 3. 4b is separated by swinging or displacing it in the front-rear direction f1. As a result, the main body 3 is elastically deformed so as to be separated from the side surface of the concrete block solidified in each groove 3a by its own elasticity, and the bar member 5 is extracted from the front and rear end surfaces of the concrete block. The said straight hole 1a, 1b is formed in the front-and-rear end surface location of the concrete block after 5 is extracted, and the said boundary block 1 is formed.

On the other hand, as shown in FIG. 3, the boundary block suspension 6 for moving the boundary block 1 is created.
The hanger 6 is configured as follows, that is, a hook support member 7 facing forward and backward is formed, and a pair of hook members 8a and 8b are provided at the front and rear end portions of at least one of them. In addition to fixing so that the front and rear positions can be adjusted, suspending force application portions 9a and 9b for applying a suspending force to the hook members 8a and 8b and the hook support member 7 are formed.

  At this time, the hook support member 7 is formed of a straight pipe member facing in the front-rear direction having a length of about 280 cm, and the annular members 10a, 10b are slid in the front-rear direction f1 at the front-rear ends of the hook support member 7. The hook members 8a and 8b having a length of about 50 cm are fixed to the lower portions of the circumferential surfaces of the annular members 10a and 10b. The suspension members are suspended at the upper portions of the circumferential surfaces of the annular members 10a and 10b. Suspension hole pieces as 9a and 9b are formed. Each annular member 10a, 10b has a pin hole b1 provided at a specific diameter position of each annular member 10a, 10b at each end of the hook support member 7, and a front-rear direction f1 of each end of the hook support member 7. The position change in the front-rear direction f1 can be adjusted via a pin hole b2 provided at a specific diameter position at each of a plurality of positions and a pin member c inserted through the pin holes b1 and b2.

  Each of the hook members 8a, 8b is a pair of straight rod members 11, 11 (inserted in the straight holes 1a, 1b at the center of the shape of the end faces 1c, 1d on the front and rear sides of the boundary block 1 used for a walking road or the like. The outer overhanging portions 11a and 11a of FIG. 4) are hooked at the same time, and in the state of being hooked in this way, the front and rear end faces 1c and 1d are in close proximity to each other. Further, the portions of the hook members 8a, 8b facing the end faces 1c, 1d are planar, and the thickness is set to a size related to the arrangement interval of the boundary blocks 1 (for example, about 10 mm). The hooking groove portion d of each hook member 8a, 8b is shaped to come out of the outer overhanging portion 11a by being moved downward with respect to the outer overhanging portion 11a to which the hook member 8a, 8b is hooked.

  The straight bar member 11 is made of a metal material (steel material or the like), and is used when lifting the boundary block 1 as described above, and between adjacent ones in a large number of boundary blocks 1 arranged in a line. It is used for positioning. In this example, the diameter is about 15 to 20 mm and the total length is about 100 mm.

Next, using the boundary block 1, the lifting tool 6 and the straight bar member 11 created as described above, a block boundary 12 for separating the sidewalk e1 and the roadway e2 on the walking road is constructed as shown in FIG. An example of the work procedure will be described.
In the state where the concrete is solidified in the groove portion 3a of the mold 2 and the end surface portions 4a, 4b are separated from the main body portion 3, the boundary block 1 is present in an inverted posture in each groove portion 3a. Each end surface 1c, 1d is in an open state. Under this state, the operator takes out the boundary block 1 from the groove 3a, carries it, stacks it in a storage place, and temporarily stores it.

  In the storage of the boundary block 1, the storage posture of the boundary block 1 may be an inverted posture in order to prevent aged deterioration of the upper surface due to wind and rain and atmospheric contact. The boundary block 1 lifted and separated in the posture may be suspended in the storage location in the same posture, and when stored in the upright posture, the boundary block 1 lifted and separated from the mold 2 in the inverted posture. After the boundary block 1 is rotationally displaced around the front and rear straight rod members 11 and 11 in the lifting state, the suspension block may be suspended.

When constructing the block boundary 12, the boundary block 1 temporarily stored as described above is transported to the construction site and unloaded near the place of use.
On the other hand, at the construction site, a foundation surface for arranging the boundary block 1 in a line is formed at a position where the block boundary 12 is constructed, and a block positioning line is drawn on the foundation surface.

  Then, suspension means such as a crane truck is prepared at the construction site, and the boundary blocks 1 are suspended and moved one by one by the suspension means, and the operator sequentially blocks the boundary blocks 1 thus moved. Positioning is performed so as to match the positioning line, and a linear block boundary 12 is formed.

  The suspension movement of the boundary block 1 in such a series of operations is performed as follows. That is, first, the straight rod member 11 is inserted into the straight holes 1a and 1b of the end faces 1c and 1d of the boundary block 1, respectively. 11 is inserted and the outwardly projecting portions 11a and 11a are cantilevered by about 30 mm. Next, the hooking groove portions d and d of the hook members 8a and 8b of the hanging tool 6 are moved back and forth. The straight bar members 11 and 11 are hooked on the outward projecting portions 11a and 11a. At this time, if necessary, the positions of the annular members 10a and 10b with respect to the hook support member 7 are adjusted in advance via the pin member c and the pin holes b1 and b2, and the end surfaces on the corresponding sides of the hook members 8a and 8b are adjusted. 1c and 1d. Thereafter, the lifting tool 6 is lifted and moved by a lifting means such as a crane.

  In such a suspending / moving operation using the suspending tool 6, the operator attached to the boundary block 1 inserts the hook members 8a, 8b of the suspending tool 6 into the front and rear straight holes 1a, 1b. It is sufficient to perform the process of hanging on the members 11 and 11 or removing from the straight rod members 11 and 11 and the process of changing the posture of the suspended boundary block 1, and the suspended boundary block 1 is turned upside down. Sometimes the front and rear straight bar members 11 and 11 are located on a straight line passing through the approximate center of gravity of the boundary block 1, so even if the weight of the boundary block 1 exceeds 100 kg, the force is relatively small. Therefore, the number of workers who should work on the boundary block 1 in the suspension movement work of the boundary block 1 is sufficient.

  In addition, when the boundary blocks 1 are stacked in the same direction in the storage place by using the lifting tool 6, the end faces 1c and 1d of the boundary blocks 1 and 1 facing forward and backward are simply suspended and separated by about 100 mm. In addition, the side surfaces of the boundary blocks 1 and 1 facing forward and backward can be arranged in a state with almost no gap just by hanging down.

Next, an example of a procedure for positioning each boundary block 1 so as to match the block positioning line drawn on the base surface will be described in more detail.
When one boundary block 1 hung and moved by the suspension means is located in the vicinity of the block positioning line, an operator at the location of the block positioning line gives an instruction on the suspension lowering position to the operator of the suspension means. Thus, the boundary block 1 is positioned almost directly above the block positioning line, and then the boundary block 1 is suspended to a suspended state slightly separated from the foundation surface. At this time, if the suspended boundary block 1 is in the inverted posture, the operator manually reverses the boundary block 1 so as to be in the upright posture.

  Next, by displacing the boundary block 1 in the front-rear direction f1, the outward protruding portion 11a having a length of about 30 mm of the straight bar member 11 inserted into the straight hole 1b of the end surface 1d on one side is moved. The boundary block 1 is inserted into the straight hole 1a of the end face 1c on one side of the boundary block 1 that has already been placed in conformity with the block positioning line, and the suspended boundary block 1 and the boundary block 1 that has already been placed The hook member 8b on one side is sandwiched between the end faces 1c and 1d in a substantially dense state. As a result, one side of the suspended boundary block 1 is positioned at an accurate position via the boundary block 1 and the straight bar member 11 that have already been placed.

  Next, the operator holds the other side of the suspended boundary block 1 in a state where it is aligned with the block positioning line, instructs the operator of the suspension means to drop, and uses the suspended boundary block 1 as a basis. Place on the surface. At this time, the height position of the hanger 6 is sufficiently lowered from the height of the straight bar member 11, so that the hooking grooves d and d of the pair of hook members 8 a and 8 b of the hanger 6 are formed in the front and rear straight shapes. The bar members 11 and 11 can be detached from the outwardly projecting portions 11a and 11a with almost no human force by the mutual guiding action.

Next, the hook members 8a and 8b of the hanger 6 are disengaged from the positions facing the end surfaces 1c and 1d of the boundary block 1 by displacing the hook members 8a and 8b in the left-right direction along the end surfaces 1c and 1d. As a result, a gap g having a width substantially the same as the thickness of the hook member 8b (for example, about 10 mm) is formed between the end faces 1c and 1d of the two boundary blocks 1 and 1 that are placed adjacent to each other. Next, the straight bar member 11 inserted in the straight hole 1a of the open end face 1c of the boundary block 1 that has been placed is extracted.
Thereafter, the same operation is repeated for each boundary block 1 that is placed one after another.

  In this way, the boundary block 1 is arranged in a line by one operator attached to the boundary block 1, and thereafter, joints such as mortar and alphalt are formed in the gap between the adjacent boundary blocks 1 and 1. The material is filled to form a block boundary 12 as shown in FIG.

  In the construction example described above, the hanging tool 6 is used in the movement of the boundary block 1 at the storage location and the movement of the boundary block 1 to the construction site. However, these movements may be performed by other appropriate means.

  In this example, the construction of the block boundary 12 that separates the sidewalk and the roadway has been described. However, the present invention is not limited to this. For example, the block boundary 12 formed at the edge of the dock may be used. Alternatively, it may be the block boundary 12 formed at the edge of the square.

It is a perspective view which shows the boundary block which is the material of the block boundary which concerns on this invention. It is a perspective view which shows the formwork for shape | molding the said boundary block. It is a figure which shows the suspension tool for boundary blocks for lifting the said boundary block. It is a figure which shows the usage example of the said suspension tool for boundary blocks. It is a perspective view which shows the said block boundary.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Boundary block 1a Straight hole 1b Straight hole 1c End surface 1d End surface 6 Boundary block lifting tool 7 Hook support member 11 Straight bar member 11a Outward projecting portion 8a Hook member 8b Hook member 9a Suspension force giving portion 9b Lifting force Granting part

Claims (2)

A boundary block that has a straight, constant cross-sectional shape that is long in the front-rear direction and has a straight hole in the front-rear direction in the vicinity of the center of gravity at each front and rear end face, and a specific block that is inserted into each of the straight holes A straight bar member having a length, and a pair of hook members that are simultaneously hooked on the outwardly extending portion of the straight bar member inserted into each of the straight holes, and the hook members are spaced at a specific interval. leave create a hook provided with a supporting member and said hook member and said hook hanging force to the support member comprises a hanging force imparting unit for imparting boundary block for hanging member to retain the two straight rods Insert the member into a straight hole on each of the front and rear end faces of the boundary block with one end projecting outward, and then hook a pair of hook members on the one end of each of the two straight rod members No state, and then applying lifting force A number of boundary blocks are arranged in a line in the front-rear direction by repeating the process of applying a suspension force to the boundary block and moving the boundary block to the boundary construction position. In this arrangement, the existing boundary block When the other boundary block is made adjacent by the suspension movement by the boundary block lifting tool, the one end portion of the straight bar member inserted into the straight hole on the existing block side of the other boundary block is connected to the existing block. A block boundary construction method for a walkway or the like, wherein the block boundary construction method is implemented so as to be inserted into a straight hole on the other boundary block side . When the hook member is made to have a thickness within a range of 10 mm to 20 mm and another boundary block is adjacent to the existing boundary block by its suspension movement by the boundary block lifting tool, The gap dimension between one end of the boundary block in the front-rear direction and one end of the other boundary block adjacent to the boundary block is made larger than the thickness dimension of the hook member, and the other boundary block is disposed. After the boundary block suspension is lowered and subsequently the hook member is moved in the left-right direction, each straight bar member inserted in the straight hole in each end face in the front-rear direction of the other boundary block step carriageway according to claim 1, which comprises carrying out the hook member of the crane for the boundary block to disengage without displacing the boundary block and said other boundary block of Sundehai set Which block boundary construction method.

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