| 摘要 |
A door lock is provided to increase reliability of products by improving a door opening/closing property and durability due to a coupling construction of a link member. A door lock includes a casing, a casing cover(14), first and second link members(20,40), a return spring(62), fixing bodies(60), and door handles(70,80). The casing contains a mounting space(11), an operating hole(12), and a guide hole. The casing cover is coupled to the casing, covering an opening of the casing. The first link member is supported by a shaft in the mounting space and includes an insertion hole(21) and a shaft hole(22). The second link member is inserted in the insertion hole with a pin(50) and is supported by a shaft on the guide hole. The return spring is installed in the mounting space in the rear of the first link member. The fixing bodies are positioned in front and rear of the shaft hole of the first link member and has a connection hole(61). The door handles are inserted in the connection hole and supported to the shaft hole of the first link member by a connection member(55).
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