Hydraulic and earth engineering – Bank – shore – or bed protection – Revetment
Reexamination Certificate
2001-12-14
2004-04-13
Shackelford, Heather (Department: 3673)
Hydraulic and earth engineering
Bank, shore, or bed protection
Revetment
C405S262000, C405S284000, C052S604000
Reexamination Certificate
active
06719487
ABSTRACT:
CROSS-REFERENCE TO RELATING APPLICATION
The entire disclosure of Japanese Patent Application No.
2000-386596
filed on Dec. 20, 2000 including specification, claims and summary is incorporated by reference in its entirety.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a structural unit for a construction, a construction made from the structural units, and a method for the production of the structural units for the construction as well as for the production of the construction.
2. Description of the Related Art
In a conventional way of building a construction including a revetment, a retaining wall or the like, structural units are used for such a construction. The structural unit may be prepared by mounting an one end portion of an anchor for use with a wall surface member on a box-shaped wall surface member for the construction or a natural stone and providing the opposite end portion thereof with a resistance-increasing member for increasing resistance. The construction is built from a number of the structural units by laying a row of the structural units on another row of the structural units so as to lay each anchor for use with the structural member in a generally horizontal arrangement, filling a space formed by the structural units with filling materials, and embedding the space with them. This construction can provide a rigid structure having a strong resistance to ground pressure and water flow etc. and offer a living space for aquatic animals and plants.
For the construction with the structural units laid in plural rows in the manner as described above, however, the anchors and the resistance-increasing members of the structural units are embedded in the filling materials such as natural stones, cracked stones, cobbled stones, or the like so that there is the risk that the anchors and the resistance-increasing members may be damaged by the filling materials upon filling a space formed by the anchors and the resistance-increasing members of the structural units with the filling materials. Further, there may be the risk that rain water or the like penetrates into the filling materials and, moreover, the anchor is brought into contact with water penetrated therein or the like (including materials dissolved during penetration).
SUMMARY OF THE INVENTION
With the above situation taken into account, the present invention has been completed and it has the first object in an aspect to provide a structural unit for a construction that can protect an anchor for use with a wall surface member for the construction from being damaged upon embedding or from rusting.
In another aspect, the present invention has the second object to provide a construction built from the structural units therefor.
In a further aspect, the present invention has the third object to provide a method for the production of the structural unit for the construction.
In order to achieve the object as described above, the present invention (as will be described in claim 1) is directed to a structural unit for a construction which comprises a wall surface member for the structural unit, an anchor for use with the wall surface member, and a resistance-increasing member, a one end portion of the anchor for use with the wall surface member being mounted on the wall surface member for use with said construction so as to become apart from the other end portion of the anchor therefor and the resistance-increasing member being mounted on the other end portion of the anchor therefor; wherein the anchor for use with the wall surface member therefor includes a protective layer disposed at an outer periphery of the anchor therefor. The preferred modes of the invention as described in claim 1 below are as described in claims 2 to 8 below.
In order to achieve the second object as described above, the present invention (as will be described in claim 9) is configured by a construction comprising a plurality of structural units for the construction, each of the structural units including a resistance-increasing member for increasing a resistance, mounted at a one end portion of an anchor for use with a wall surface member for the construction, the anchor being in turn mounted at another end portion thereof on the wall surface member therefor; the plurality of the structural units therefor being laid on one another in the construction so as to be disposed adjacent to one another; and the anchor therefor and the resistance-increasing member being embedded with a filling material in the structural unit for the construction; wherein the anchor for use with the wall surface member is provided with a protective layer at a periphery thereof. The preferred modes of the invention as described in claim 9 below are as described in claim 10 below.
In order to achieve the third object as described above, the present invention (as described in claim 11) is directed to a method for the production of the structural unit for the construction, comprising: the step of preparing the wall surface member for the construction with a mounting cavity, a linear member having the one end portion functioning as a mounting end portion for mounting the wall surface member therefor and having the other end portion with the resistance-increasing member for increasing resistance, and a protective tube member in a cylindrical form; the step of inserting the linear member into the protective tube member from the one end of the linear member and projecting a portion of the linear member from the protective tube member; and the step of filling the mounting cavity of the wall surface member for the construction with adhesive and inserting the linear member protruded from the protective tube member into the mounting cavity thereof.
In achieve the third object as described above, the present invention (as will be described in claim 12) is further directed to a method for the production of the structural unit for the construction, which comprises the step of preparing the wall surface member for the construction with the mounting cavity, the linear member having the one end portion functioning as the mounting end portion for mounting the wall surface member therefor and having the other end portion with the resistance-increasing member for increasing resistance, the protective tube member in a cylindrical form, and a flexible tube member in a cylindrical form; the step of inserting the linear member into the protective tube member and the flexible tube member from a one end of the linear member and projecting a portion of the linear member from the flexible tube member; and the step of filling the mounting cavity of the wall surface member for the construction with adhesive and inserting the linear member protruded from the flexible tube member into the mounting cavity thereof.
The present invention having the first to third objects as described above can offer the features and advantages as will be described above.
Therefore, the present invention as described in claim 1 provides a structural unit for a construction having the protective layer at the outer periphery of the anchor for use with the wall surface member, which can receive and withstand an external force from the filling material upon filling with the filling material and which can protect water penetrating into the filling material or the like from coming into contact with the anchor therefor. This arrangement of the structural unit can prevent the anchor for use with the wall surface member from being damaged at the time of embedding and the anchor therefor from rusting during usage.
In accordance with the present invention as described in claim 2, the protective layer of the anchor comprises a first protective layer and a second protective layer and the first and second protective layers. The first protective layer can ensure the property of preventing the penetration of water and the second protective layer disposed at the outer peripheral side of the first protective layer can receive and withstand an external force from the filling materials upon filling t
Hasegawa Kiyonori
Yukimoto Isao
Kankyo Kogaku Co., Ltd.
Morrison & Foerster / LLP
Saldano Lisa M
Shackelford Heather
LandOfFree
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