B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 47/00 (2006.01) F16M 1/00 (2006.01)
Patent
CA 2231842
A two-piece housing is provided with several bores which extend through both housing sections. Each bore section in each housing section is concentrically surrounded by a centering structure, which is in the shape of a recessed centering structure in one housing section and a protruding centering structure in the other housing section. The bore sections are manufactured in each housing section together with the respectively associated concentrically surrounding centering structure and in one process step, with a boring tool which includes two cuttersadapted to the respective diameters of the bore sections and the respectively associated recessed or protruding centering structure. Subsequently, the housingsections are assembled in such a way that the protruding centering structures are fittingly received in the recessed centering structures.
Cette invention concerne une boîte (d'engrenage) en deux pièces qui comporte plusieurs alésages concentriques dans chacune des deux moitiés qui la composent. Chaque alésage d'une moitié de la boîte est entouré d'un évidement concentrique de centrage et chaque alésage de l'autre moitié est entouré d'une projection concentrique de centrage. Les alésages de chaque moitié de la boîte sont usinés en même temps que soit les évidements soit les projections concentriques de centrage respectifs et en une seule étape, à l'aide d'une fraise à deux organes de coupe adaptés aux diamètres respectifs des alésages et des évidements ou projections de centrage associés. Par la suite, les deux moitiés sont assemblées de telle sorte que les projections de centrage se logent dans les évidements de centrage correspondants.
Boing Georg
Schaupp Hans-Albert
Schnurr Wolfgang
Stoll Robert
Borden Ladner Gervais Llp
Flender-Himmelwerk Gmbh
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