| 摘要 |
The drive housing (3) is approximately rectangular, with the electric drive motor (2) secured to it at one end. Two opposing side walls (6,8) of the drive housing have reinforcing ribs (13). The reinforcing ribs extend in the peripheral direction of the housing, parallel to the direction in which the wall has its greater length. Each of the reinforcing ribs may have a rectangular cross-section with two parallel opposing sidewalls, all of the ribs lying in a common plane. |
