| 摘要 |
<p>A rack and pinion gear, a housing for such gear, and a method of manufacturing such a housing. The housing is an assembly of two tubular members (1) and (2); member (1) is for receiving the rack bar of the gear and member (2) is for receiving the pinion. Each of the members (1), (2) has in its side wall an aperture and these members are mated and secured (by welding, brazing, bonding or otherwise) one with the other with the two apertures communicating with each other. The communicating apertures provide an opening through which the rack and pinion can co-operate. The tubular members (1, 2) can be formed by shaping from sheet material and during such shaping a projection (4) can be erected from the sheet material to form a chamber communicating with the bore of its tubular member; the chamber can be used to locate a bearing yoke or other support means for the rack bar.</p> |
