Static structures (e.g. – buildings) – With lifting or handling means for primary component or... – Position adjusting means; e.g. – leveling
Reexamination Certificate
1996-02-01
2001-02-27
Safavi, Michael (Department: 3635)
Static structures (e.g., buildings)
With lifting or handling means for primary component or...
Position adjusting means; e.g., leveling
C052S293300, C052S299000, C052S745150
Reexamination Certificate
active
06192636
ABSTRACT:
TECHNICAL FIELD
This invention relates to a method of forming a base structure assembly used in a wooden axial structure in wooden architectural construction, which is a traditional Japanese architectural style structure, and joint parts thereof. More particularly, this invention relates to a method of forming a joint structure for three construction parts; namely, a base foundation, a base, and pillar leg parts, along with pillar leg joint parts used thereof. This invention abandoned the traditional way of such a construction, and made it possible to take totally different steps in constructing wooden assembly around the base area by developing new parts. This invention aims to improve the efficiency in construction, to standardize construction parts, and to make construction more accurate and stronger. Eventually, this invention can realize an economical way of constructing wooden architecture.
BACKGROUND ART
Japanese traditional wooden axial structures are highly praised in the world due to their perfect joint formations. Only skilled carpenters, who can perform highly skilled techniques in processing depth of cut, can complete the assembly. The number of such skilled carpenters is, however, decreasing year after year. As younger generation lose interest in the traditional architectural field, it is difficult to train young workers to learn the skills. Besides, the carpenters who have been playing an important role in building wooden houses are getting older.
Due to the above-mentioned circumstance, so-called “two by four method” or various kinds of prefabrication methods have become more popular because they do not require carpenters with special skills or techniques. On the other hand, some people are not satisfied with prefabricated houses; and the demand for the traditional Japanese wooden architecture remains high, especially after Japan has accomplished economic development which made it possible for people to seek relaxation. Consequently, the construction industry has to respond to such a demand, but the industry is confronted with a difficult situation to meet such a demand.
Under such circumstances, the applicant of this invention realized a wooden axial structure which does not need the traditional joint work to make a joint structure on top of a pillar and can be constructed as a simple factory production as disclosed in Japanese Laid Open Patent Publication Nos. HEI4-153446 and HEI4-169641. This invention not only resolves the problem resulting from the lack of skilled carpenters, but also provides an improvement over any other known methods in resolving such problems as the limit of construction mode, guarantee of supply in time, rising cost, more space needed in a vertical direction of pillar head joint structure, the gap of the top edge in each crossing transverse and so on.
This invention is based on a series of technical ideas deeply related to inventor's own construction style. Specifically, This invention relates to a new method of forming unique structures around the base area and the pillar leg joint parts (hereafter, a pillar leg means the leg part of a wooden pillar assembled on the first floor) to accomplish such a method.
The followings are the detailed description of the construction.
DISCLOSURE OF INVENTION
As shown in the embodiment in the attached drawings, the method of forming a base structure assembly used in a wooden axial structure in wooden architectural construction is basically composed of the following constructions.
A method of forming a base structure assembly used in a wooden axial structure in wooden architectural construction of the present invention includes the steps of forming a basic foundation by at least cutting, spreading stones or sands and placing concrete according to a basic construction drawing; positioning joint parts having a pillar leg joint portion, base member joint portions and a supporting leg serving as an anchor bolt on the base foundation at a position where a wooden pillar is positioned; fixing each end of base members, one after another, to said base member joint portions which face each other according to the first floor construction drawing, adjusting a level thereof, and completing a base construction or a floor structure; and forming a basic concrete structure between the base foundation and a lower part of said base wherein said level has already been adjusted.
Base foundation is formed by enforcing the ground by driving in piles according to the basic construction drawings; spreading sands or stones on the piled ground after cutting and battering are done; making the surface smooth; and thereafter placing concrete on the surface. This base foundation supports the basic structures chosen according to the architecture built on top of it; e.g. the base, the independent base, the raft foundation, and so on.
Therefore, this basic foundation is not limited to the combination of stones or sands, and the concrete placed thereon, as long as sufficient durability to support the basic structure is guaranteed.
On the roughly even surface (i.e. not a standard surface like a finished one), the exact places to put wooden pillars for construction are marked according to the first floor drawings. Then joint parts are positioned on these marks. When the joint parts are not formed as an independent form, the joint parts should be connected to one end of the base member (as described later) or supported by other appropriate parts before the joints parts are positioned on all the exact positions to place wooden pillars for construction according to the first floor construction drawings.
Aside from the case in which the connection to the base member joint is processed one after another at the same time, both ends of the base member, which is already processed in accordance to the first floor drawings, are usually connected to a position between each base member joint portion constructed on top of the pillar leg joint portions which have already been processed and positioned in the appropriate positions. A base construction, according to the first floor construction drawing, or a floor construction combined with a flint member or a sleeper is thus completed. The base at this stage should look like it is detached from the basic foundation, and should be adjusted so as to be exactly even.
The above-described procedures are not limited to what has been described above. As long as the structure where the base is evenly detached from the basic foundation is completed, any procedure should suffice.
As for the joint parts, as long as the joint parts can sustain the strength and length to keep the base from the foundation at a certain height and can function as an anchor bolt after they are buried in the concrete basic foundation, there is no restriction in their material and structure. Therefore, any structure of a steel bar and a steel tube or a shaped steel formed in a bar style can be chosen and used provided that the structure has a pillar leg joint portion and base member joint portions on the top structure thereof; and provided that on the bottom structure thereof, it has a supporting part which can easily locate the mark described above. In short, it is sufficient that a structure is provided which can make the base independent, adjust the height, and avoid movement after the location thereof has been arranged.
Also, a structure of pillar leg joint portions and base member joint portions can be constructed with metal or rectangular lumber if the structure can roughly form a joint structure. This structure arrangement depends upon the situation with the wooden pillars (as described later), the pillar leg of the base, and the joint parts formed on both ends of the base.
Wooden pillar in this invention means a construction pillar (e.g., Japanese cypress, cedar or hemlock lumber either 105 mm or 121 mm square) which is positioned on the first floor. The lumber should be processed in a factory to have pillar leg structure which can be connected to the joint parts of the pillar leg joint portions (e.g., a pivot, mortise, bo
Hayashi Yuuichirou
Naitou Noboru
Satou Keiji
Armstrong, Westerman Hattori, McLeland & Naughton
Hayashi Kensetsu Kougyou Co., Ltd.
Safavi Michael
LandOfFree
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