Coupling structure and cloth stretching frame using said...

B - Operations – Transporting – 44 – D

Patent

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B44D 3/18 (2006.01) D06C 3/08 (2006.01)

Patent

CA 2224243

Members to be coupled have hollow coupling parts at opposite side surfaces, a coupling member has, at opposite ends, press-fitting parts which are press-fitted in the hollow coupling parts, and angle shape concavities and convexities having crests which are corrupted upon press-fitting are formed on at least either one of an inner peripheral surface of the hollow coupling part and an outer peripheral surface of the press-fitting part. When the opposite end parts of the coupling members are press-fitted in the hollow coupling parts of the members to be coupled, the crests of concave parts of the angle shape concavities and convexities are corrupted by the opposed surface so as to be made into close contact with and firmly coupled to the associated surface. Thereby it is possible to securely couple a pair of members to be coupled by means of a simple press-fitting operation.

Des éléments à assembler présentent à la surface de leurs côtés opposés des parties creuses de fixation. Une équerre de fixation présente à ses extrémités opposées des parties s'emmanchant à force dans lesdites parties creuses de fixation. Des concavités et convexités en dent de scie présentant des crêtes et qui se déforment lors de l'emmanchement à force sont formées sur l'un des côtés au moins de la surface périphérique intérieure des parties creuses de fixation et sur l'un des côtés au moins de la surface périphérique extérieure des parties s'emmanchant à force. Lorsque les extrémités opposées des parties s'emmanchant à force s'encastrent dans les parties creuses de fixation des éléments à assembler, les crêtes des parties concaves des concavités et convexités en dent de scie sont déformées sur la surface opposée, entrant en étroit contact avec la surface associée et s'y fixant fermement. On peut ainsi effectuer avec une technique simple un assemblage sûr entre deux éléments à assembler.

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