JP2000297406A - Height fixing appliance of concrete product and height fixing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a height fixing appliance of a concrete product and a height fixing method capable of easily adjusting a height of a traffic boundary block to fix. SOLUTION: The bottom of a traffic boundary block 1 is equipped with an insertion body 11 embedding an insertion hole 13 formed in one end and faced outward therein, a screw section 17 formed in one end and screwed from the insertion hole 13 of the insertion body 11 embedded in the traffic boundary block 1, a spot-contacted contact section 19 formed in a bearing bedrock 5 and placing the traffic boundary block 1 on the other end, a rotational control section 18 formed between the screw section 17 and contact section 19 and moving the screw section 17 forward and backward to the insertion hole 13 by rotationally controlling the insertion section and a bearing member 12 for bearing the traffic boundary block 1, the bearing member 12 is rotationally controlled in a state to screw the screw section 17 in the insertion hole 13, the contact section 19 is spot-contacted to the bearing bedrock 5, and a height of the traffic boundary block 1 is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete product height fixing device for fixing an installation height of a concrete product, and a method for adjusting a concrete product height using the height fixing device.

[0002]

2. Description of the Related Art Conventionally, a sidewalk boundary wall or the like that partitions a sidewalk from a roadway is formed by arranging a plurality of concrete sidewalk boundary blocks on a support base formed in a region forming the sidewalk boundary wall. Specifically, first, a region for forming the pedestrian road boundary is leveled, and a support base for arranging the pedestrian road boundary block is formed. The support base is made of concrete on a firm, flat surface so that the sidewalk block can be stably arranged. Thereafter, a height-adjusting mortar is provided on the installation surface to adjust the height at which the pedestrian road boundary block is installed on the support base. And the pedestrian road boundary block which forms a pedestrian road boundary is arrange | positioned on height adjustment mortar.

[0003]

By the way, the above-mentioned construction method is to dispose a height-adjusting mortar after forming a support base, and put the pedestrian road on the height-adjustment mortar disposed on the support base. Additional border blocks had to be provided and the work was very inefficient. In addition, the work of forming the support base and the work of arranging the mortar for height adjustment must be performed accurately in order to guarantee the strength of the pedestrian road boundary wall and not to impair the appearance, and it requires skill in finishing. It was a task and could not be done easily.

Accordingly, an object of the present invention is to provide a concrete product height fixing device and a concrete product height adjusting method capable of easily adjusting and fixing the height of concrete and product.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an apparatus for fixing the height of a concrete product according to the present invention has an insertion hole formed at one end facing the outside of the bottom surface of the concrete product. A threaded part is formed at one end of the insert to be buried and screwed through an insertion hole of the insert buried in the concrete product, and the other end is point-contacted with a support base on which the concrete product is disposed. A contact member is formed between the screw portion and the contact portion, and a rotating member for rotating and retracting the screw portion with respect to the insertion hole is formed between the screw portion and the contact portion. The support member is rotated in a state where the screw portion is screwed into the insertion hole, so that the contact portion comes into point contact with the support base, and adjusts and fixes the height of the concrete product.

Further, the method for fixing the height of a concrete product according to the present invention is characterized in that an insert is buried in a bottom surface of the concrete product with an insertion hole formed at one end facing outward, and the insertion hole is formed at one end. A screw portion to be screwed is formed, and a contact portion to be point-contacted is formed on a support base on which the concrete product is installed at the other end, and a rotating operation is performed between the screw portion and the support base. In this way, a height fixing device is provided which has a rotation operation part for moving the screw part forward and backward with respect to the insertion hole, and has a support member for supporting the concrete product. In order to solve the above-mentioned problems, the method for fixing the height of a concrete product according to the present invention includes the steps of forming a support base on which the concrete product is disposed, and inserting an insert buried in the bottom surface of the concrete product. In the hole,
Screwing the screw portion of the support member, temporarily installing the concrete product to which the support member is attached at a predetermined height from the support base, rotating the support member, and placing the support member on the insert. Advancing and retracting, bringing the contact portion into point contact with the support base to support the concrete product.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A height fixing device and a height fixing method for a sidewalk boundary block to which the present invention is applied will be described below with reference to the drawings. As shown in FIG. 1, the sidewalk boundary block 1 is a block constituting a sidewalk boundary wall 4 that forms a boundary between the road 2 and the sidewalk 3, and is formed in a substantially rectangular shape. This sidewalk block 1
At one of the longitudinally opposite ends, an engagement projection 9a is provided so as to be continuous with the bottom surface, and at the other end, a cutout 9b is formed to engage with the engagement projection 9a. The height fixing device to which the present invention is applied is buried in the bottom surface near the base end of the engagement protrusion 9a.

When the pedestrian road boundary block 1 is installed at a predetermined position, the engaging protrusion 9a and the notch 9b of the adjacent pedestrian road boundary block 1 are engaged with each other to form an area where the pedestrian road boundary wall 4 is formed. A base plate 6 is provided on the formed support base 5, and is supported on the base plate 6 by a height fixing device 10. That is, in the pedestrian road boundary block 1, the engagement protrusion 9a side is supported by the pair of height fixing devices 10,
The notch 9b side is engaged and supported by the engaging projection 9a of the adjacent pedestrian road boundary block 1. Then, the sidewalk boundary block 1 is installed in a state where the concrete 7 is filled in the formwork 8 around the block and the bottom side is buried in the concrete 7.

The height fixing device 10 to which the present invention is applied is:
As shown in FIGS. 1 and 2, an insert 11 buried with one end facing the bottom surface of the walkway boundary block 1, and a support member screwed into the insert 11 and supporting the walkway boundary block 1. And 12.

As shown in FIG. 2, the insert 11 is made of metal or the like, and has a rod shape as a whole. The insertion body 11 has an insertion hole 13 formed in the longitudinal direction so that the support member 12 can be screwed therein. The insertion hole 13 is provided for the insert 1.
1, the support member 12 is inserted from one end where the support member 12 is inserted, and the pedestrian road boundary block 1 is inserted inside from the one end where the support member 12 is inserted. At the time of formation, a protective cap 14 for preventing concrete from entering the insertion hole 13 is attached. In addition, a thread groove 15 is formed on the inner peripheral surface of the insertion hole 13 so that the support member 12 can be screwed therein. Insert 1
An uneven portion 16 is formed on the outer peripheral surface of the insert 1 in a direction orthogonal to the longitudinal direction of the insert 11. Uneven part 16
Is formed in a direction orthogonal to the longitudinal direction of the insert 11, so that the insert 11 embedded in the
Is prevented from falling off.

The support member 12 inserted into the insert 11
Is a rod-shaped member having a diameter that can be inserted into the insertion hole 13, and has a screw portion 17 that is screwed into a screw groove 15 formed in the insertion hole 13 at one end side inserted into the insertion body 11. I have. The screw portion 17 is formed to have a length capable of adjusting the height of the pedestrian road boundary block 1 from the support substrate 5 when the pedestrian road boundary block 1 is installed on the support base 5.

In the middle of the support member 12, there is formed a rotary operation portion 18 which is notched so as to face each other to form a flat portion. The rotation operation section 18 is an area where a rotation operation member such as a wrench or a monkey for rotating the support member 12 is engaged so as to rotate the support member 12 so as to advance and retreat with respect to the insertion body 11. . Further, the contact portion 19 is formed on the support member 12 in a substantially semicircular shape so that the tip portion on the other end side makes point contact with the base plate 6.
Are formed. When the contact portion 19 is formed in a substantially arc shape, the frictional resistance with the base plate 6 can be reduced when the support member 12 is rotated by temporarily installing the sidewalk boundary block 1 on the base plate 6, The rotation of the support member 12 can be performed smoothly. Also, the contact portion 19
Is formed in a substantially arc shape to prevent the support member 12 from shifting. The shape of the tip is not limited to a substantially semi-circular arc as long as it is a shape that makes point contact with the base plate 6, and may be formed, for example, in a sharpened shape.

Further, a screw portion 21 is formed at the other end of the support member 12. The screw portion 21 has a contact portion 19
Is prevented from slipping on the base plate 6. The anti-slip member 22 is formed in a nut shape, and has a mounting hole 23 for mounting the screw portion 21 in the center. Further, the anti-slip member 22 includes
In order to increase the contact area with the base plate 6 and increase the friction, the surface that is in contact with the base plate 6 is formed flat. The anti-slip member 22 screwed to the screw portion 21 rotates the support member 12, and after the height adjustment of the sidewalk roadway boundary block 1, is rotationally operated so as to press against the base plate 6.

The pedestrian road boundary block 1 is installed as follows using the height fixing device 10 as described above. First, as shown in FIG. 1 and FIG. 3, a pair of inserts 11 has one end of an insertion hole 13 inside a pedestrian road boundary block 1 disposed in an area where the pedestrian road boundary block 1 is installed. It is arranged facing the outside. Here, the pair of inserts 13 are previously fitted with the engagement protrusions 9 of the footway boundary block 1.
The insertion hole 13 is buried at the base end portion a with one end of the insertion hole 13 facing outward. The screw member 17 of the support member 12 is screwed into the insertion hole 13 of the insert 11 buried in the sidewalk block 1 and the support member 12 is attached.
At this time, the screw portion 17 is screwed into the insertion hole 13 so that the amount of protrusion of the support member 12 from the bottom surface of the footway boundary block 1 is made as small as possible. A screw portion 21 on the other end side of the support member 12 has an anti-slip member 22.
Is attached. The support member 12 may be protruded in advance by the height h at which the footway boundary block 1 is installed. Thereby, the operation of rotating the support member 12 described later can be simplified.

On the other hand, as shown in FIGS. 1 and 3, in a region where the pedestrian road boundary block 1 is installed, a support base 5 serving as a base of the pedestrian road boundary block 1 is formed as a foundation work. The support base 5 is formed of a base that has been prepared without excavation, a base that has been flattened by quarrying, a base that has been leveled, and the like. That is, the support base 5 is formed firmly on a flat surface so that the footway boundary block 1 can be disposed in a stable state above.

Next, a base plate 6 for receiving the height fixing device 10 is disposed on the support base 5. The base plate 6 is formed of a metal plate having flat rigidity so that the sidewalk road boundary block 1 can be pointed in a stable state. And, on this base plate 6, the insert 11
Are buried and the sidewalk roadway boundary block 1 to which the support member 12 is attached is disposed. Specifically, the pedestrian road boundary block 1 is suspended by a transfer mechanism such as a crane, and is transported to an area where the pedestrian road boundary block 1 is installed. Then, the pedestrian road boundary block 1 is temporarily installed at a predetermined height h from the base plate 6 by a temporary installation mechanism such as a hydraulic jack.

When the footway boundary block 1 is temporarily installed,
A rotation operation member such as a spanner or a monkey is caused to enter from a gap between the base plate 6 and the bottom surface of the sidewalk boundary block 1,
The rotation operation member is engaged with the rotation operation section 18 of the support member 12. Then, by rotating the support member 12 with the rotation operation member, the support member 12 projects the support member 12 outward from the insertion body 11 until the contact portion 19 is pressed against the base plate 6. Here, since the contact portion 19 is formed in a substantially semicircular arc shape, the frictional resistance with the support base 5 can be reduced, and the rotation of the support member 12 can be performed smoothly. In addition, the contact portion 19
Since it is formed in a substantially arc shape, the contact point is prevented from shifting, and the sidewalk roadway boundary block 1 is prevented from swinging. In the case where the support member 12 has been protruded by the height h in advance, the rotation operation of the support member 12 can be omitted, and only the height h of the footway boundary block 1 is finely adjusted. Well, the work can be simplified.

Thereafter, as shown in FIG.
Anti-slip member 2 previously attached to the screw portion 21
The base plate 6 is rotated by a rotation operation member.
Is pressed against. Thereafter, the temporary installation mechanism supporting the pedestrian road boundary block 1 is removed, and the pedestrian road boundary block 1 is moved to a predetermined height h from the base plate 6 by the height fixing device 10. Is fixed. Here, since the anti-slip member 22 is pressed against the base plate 6, friction with the base plate 6 increases, and the slipway boundary block 1
Can be prevented from shifting, shaking or shifting.

Thus, around the pedestrian road boundary block 1 supported by the height fixing device 10, a formwork 8 made of a wooden board, steel, or the like is disposed so as to surround the pedestrian road boundary block 1. Concrete is filled and compacted with a rod vibrator or the like.

When the height of the sidewalk roadway boundary block 1 is fixed by using the height fixing device 10 as described above, the height adjusting mortar is disposed on the support base as in the prior art.
Since there is no need to arrange the sidewalk block 1
There is no need for skill in the work, the height can be easily fixed and the work can be installed, and the work efficiency can be improved.

The insert 1 of the height fixing device 10 has been described above.
1 has the insertion hole 13 penetrating in the longitudinal direction, the insertion body 11 has the protective cap 1
The other end of the insertion hole 13 to which the mounting hole 4 is attached may be formed so as to be closed, and the protection cap 14 may be omitted. For example, as shown in FIG. 5, the insertion body 31 is formed by closing the other end of the insertion hole 32.

Further, the insert 11 may be provided with a drop-off preventing portion at the other end of the insert 36 in order to prevent the insert 11 from dropping off from the bottom surface of the sidewalk block 1. That is,
As shown in FIG. 6, the insertion body 36 is formed by closing the other end of the insertion hole 37 in the same manner as the insertion body 31.
The other end side may be formed so as to be branched into a plurality of portions, and this portion may serve as the falling-off preventing portion 38. In FIG. 6, the falling-off preventing portion 38 is formed in two branches, but may be formed so as to branch more.

Further, as shown in FIGS. 7 to 9, the insert 11 may be formed with a falling-off preventing portion. That is, FIG.
The inserts 41, 43, and 45 shown in FIG. 9 to FIG. 9 are not provided with the concave and convex portions 16 for preventing the inserts 41, 43, and 45 from falling off from the pedestrian road boundary block 1, and instead of the concave and convex portions 16,
The stoppers 42, 44, and 46 are formed so as to be larger in diameter from one end of the cover. And these inserts 41, 43, 45
Is formed with an insertion hole 47 in which the other end side on which the dropout prevention portions 42, 44, 46 are formed is closed. 7 to 9
The inserts 41, 43, and 45 shown in FIG. 11 can achieve the same operation and effects as those of the insert 11 described above with the above configuration.

Furthermore, the above-described pedestrian road boundary block 1
As shown in FIG. 1, as shown in FIG. 1, one of the longitudinally opposed ends has an engagement projection 9 a formed continuously with the bottom surface, and the other has a cutout 9 b engaged with the engagement projection 9 a. The case where one is supported by the height fixing device 10 and the other is supported by the engaging protrusion 9a to support the adjacent pedestrian road boundary block 1 is described.
May be supported at four points on the bottom surface of. In this case, it is not always necessary to provide the engagement protrusion 9a and the notch 9b.

Furthermore, the case where the formwork 7 is disposed after the pedestrian-way boundary block 1 is supported by the height fixing device 10 has been described. May be provided. Further, if the height fixing device 10 can reliably support the sidewalk boundary block 1, the base plate 6 does not necessarily need to be interposed between the support plate 5 and the base plate 6 is directly supported on the support substrate 5. You may do so.

Furthermore, the present invention is not limited to the support of the sidewalk boundary block as described above.
It may be used to support L-shaped retaining wall blocks used for retaining walls such as roads, secondary concrete products, concrete blocks, and the like.

[0027]

According to the present invention, the support member is screwed into the insert buried with the insertion hole facing outward on the bottom surface of the concrete product, and after the temporary installation of the concrete product, the support member is rotated. By operating and bringing the contact portion into contact with the support base, the height of the concrete product can be fixed, so that the work of fixing the height of the concrete product can be easily performed, and the working efficiency can be improved. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an installation state of a sidewalk boundary block.

FIG. 2 is a perspective view of a height fixing device.

FIG. 3 is a cross-sectional view showing a state in which a height fixing device supports a sidewalk roadway boundary block.

FIG. 4 is a cross-sectional view showing a state in which the installation of the sidewalk block has been completed.

FIG. 5 is a perspective view showing another example of an insert constituting the height fixing device.

FIG. 6 is a perspective view showing another example of an insert constituting the height fixing device.

FIG. 7 is a perspective view showing another example of the insert constituting the height fixing device.

FIG. 8 is a perspective view showing another example of the insert constituting the height fixing device.

FIG. 9 is a perspective view showing another example of the insert constituting the height fixing device.

[Explanation of symbols]

1 Border block, 10 Height fixing device, 11
Insert, 12 support member, 13 insertion hole, 18 rotation operation part, 19 contact part, 22 slip prevention member

Claims (7)

[Claims] 1. An insert buried in a bottom surface of a concrete product with an insertion hole formed at one end facing outward, and screwed into an end of the concrete product through an insertion hole of the insert buried in the concrete product. A screw portion is formed, and at the other end, a contact portion that is in point contact with the support base on which the concrete product is disposed is formed, and between the screw portion and the contact portion,
A rotation operating part for rotating the screw part forward and backward with respect to the insertion hole by rotating operation; and a support member for supporting the concrete product, wherein the screw part is screwed into the insertion hole. A height fixing device for a concrete product, wherein the contact portion is point-contacted to the support base by being rotated in the combined state to fix the height of the concrete product. 2. The method according to claim 1, wherein the contact portion and the support base are provided between:
The height adjusting device of a concrete product according to claim 1, wherein a base plate is interposed, and the contact portion is in point contact with the base plate. 3. An anti-slip member at the other end of the support member, which is in contact with the support base or the base plate to prevent the contact portion from slipping on the support base or the base plate. The height fixing device for concrete products according to claim 1, wherein a height is provided. 4. A falling-off preventing portion for preventing the insert from falling off from the concrete product is formed on the other end side of the insert. A fixture for fixing the height of a concrete product according to any one of the preceding claims. 5. An insert body buried in a bottom surface of a concrete product with an insertion hole formed at one end facing outward, and a screw portion screwed into the one end through the insertion hole is formed at one end. A contact portion that is point-contacted is formed on a support base on which the concrete product is installed, and the screw portion advances and retreats with respect to the insertion hole by rotating between the screw portion and the support base. A method of fixing the height of a concrete product using a height fixing device comprising a rotation operating unit to be formed and a support member for supporting the concrete product, wherein a step of forming a support base on which the concrete product is disposed, Screwing a screw portion of the support member into an insertion hole of the insert buried in the bottom surface of the concrete product; and supporting the concrete product with the support member attached thereto. Temporarily mounting the support member at a predetermined height from the holding base; rotating the support member to advance and retreat the support member with respect to the insert; bringing the contact portion into point contact with the support base; Supporting a concrete product. 6. The method according to claim 6, further comprising the step of, after forming the support base on which the concrete product is disposed, further disposing a base plate on which the contact portion of the support member is in contact. The method for fixing the height of a concrete product according to claim 5. 7. A non-slip member for preventing the contact portion from slipping on the support base or the base plate is attached to the other end of the support member. After operating and bringing the anti-slip member into contact with the support base or base plate, preventing the contact portion attached to the other end side of the support member from slipping with respect to the support base or base plate. The method for adjusting the height of a concrete product according to claim 5, further comprising a step of pressing the anti-slip material against the support base or the base plate.