| 摘要 |
A leg structure of a chair is provided to form an injection material hole on a leg connection portion to increase the strength of the coupling of an injection material and a connection portion and to reinforce the durability. A leg structure of a chair includes a central body portion(51), end taps(55) and plural connection portions(53). A foot portion forms the center of the central body portion. The end taps are connected to the central body portion radially, and installed at the ends of the connection portions. The central body portion and the end taps are made of plastic. The connection portion is made of metal. The central body portion and the end taps are integrally injection molded in the state that the connection portions are inserted into a predetermined mold and an injection material hole is formed. In the connection portion, injection material and the connection portions are coupled to each other.
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