Joints and connections – Molded joint – Socket or open cup for bonding material
Patent
1995-08-15
2000-09-19
Kim, Harry C.
Joints and connections
Molded joint
Socket or open cup for bonding material
403230, 403292, F16B 1300
Patent
active
06120207&
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Technical Field of the Invention
This invention relates to a connector for use in connecting between wooden materials, laminated wood or stone materials, or connecting between a wooden material or laminated wood and a stone material or concrete, and a method for connecting in a building structure in a joint or a coupler structure of a building structure such as a wooden house and a framework structure in a large-sized wooden building with large size structure.
2. Background of the Related Art
In recent years, there have been developed to provide a connector for connection between a beam and a pole plate, a pole beam and a column, and a lateral beam and an independent column (long column) aiming at labor saving and rationalization in building construction work for a dwelling and the like or a joint structure or a coupler structure and the like aiming at a rationalization of construction work.
For example, (1) Japanese Utility Model Laid-Open No. Sho 63-162008 discloses a framework fitting used in a wooden framework construction method, (2) Japanese Utility Model Laid-Open No. Hei 2-93401 discloses a reinforcing fitting for a joint part between a lower end of the column and a foundation of a framework wooden building, (3) Japanese Patent Laid-Open No. Hei 3-295946 discloses a crown dowel fitting and a lathing structure of a framework wooden building using the fitting, and (4) Japanese Patent Laid-Open No. Hei 2-300442 discloses a joint structure of wooden construction member in which the wooden framework may not be disassembled after connection. In these related art, the fittings, bolts, and nuts are used for connecting the structural members. As the joint structure, the joint structure in a wooden framework structure aiming at improving a structural strength at the joint structure is disclosed in Japanese Patent Laid-Open Nos. Sho 63-14939, 63-14940 and 63-14941, respectively.
However, the above-mentioned related art connector or joint structure had a problem that a large number of parts such as bolts, nuts or washers were used during the work, their fixing work was complicated and the process was lack of workability. In addition, the prior art had a problem that the fitting was large size, heavy in weight, lacked in transporting characteristic and further lacked in safety characteristic at a high elevated location.
In addition, the prior art had some problems that an erroneous fitting for the fitting and the like occurred to require a certain trouble, it was hard to bury the fitting to a predetermined location in the cylinder or the plug member punched at the predetermined location and make a threadable fitting of bolts to the punched holes in the aforesaid buried cylinder or plug, resulting in that its workability was poor, it required a large number of steps of work and it required a long work period.
The assembly in which the wooden members were fixed with nuts had some problems that their fastening force was lost in several years due to a shrinkage of the wood, looseness could easily occur and their physical strength was reduced. Additionally, there were some problems that metallic portions such as bolts, nuts or fittings were oxidized by dew and the like, their durability was lost and at the same time the imported wood contained salt due to storage on the sea, the bolts or fittings and the like were decayed to deteriorate physical strength and at the same time durability was lost.
In addition, the prior art system had some problems in disaster prevention that the external connecting bolts or fittings were melted during fire, their strength could not be expected and a housing might be fallen. In addition, the maximum disadvantage of the framework structure using wooden members was brittleness at the connection part, various kinds of joints or couplers were devised in the past by the carpenters and the like in order to keep a physical strength. However, all these structures had some problems that they were complex, their machining required a large amount of steps and they
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Home Co. Ltd.
Kim Harry C.
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