| 摘要 |
PURPOSE:To make an external pressure source usable with sample constitution by pressurizing and contacting plural friction discs, producing friction force for doing an actuation limit, with each holding member pressure and moved, while installing a hydraulic pressing device in a fixed part, and consisting it into an irrotational structure. CONSTITUTION:A differential limiting device is constituted of a multiple disc clutch 30 and a hydraulic servomechanism 31. And, this multiple disc clutch 30 is made up of having a low of friction discs 32 alternately opposed with one another. And, the disc 32 or a first friction disc is fitted in a ring gear clutch hub 33 or a first holding member, and the plate 32 or a second friction disc is fitted in a sun gear clutch hub 34 of a second holding member. In addition, a back plate 35 receiving weighting on the right is attached to the ring gear hub 33, and another back plate 37 receiving weighting on the left is attached to the sun gear clutch hub 34. On the other hand, the hydraulic servomechanism 31 is set up at the back side of the sun gear clutch hub 34, constituting it into an irrotational structure unitized with a rear case 3.
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