Machine element or mechanism – Power take-off – From shaft extension
Patent
1998-09-01
1999-12-21
Marmor, Charles A.
Machine element or mechanism
Power take-off
From shaft extension
74 1563, 74 11, 74 152, 192 357, 180 531, F16H 3700, B60K 1728
Patent
active
060033916
ABSTRACT:
A transmission mechanism having a PTO transmission system and a traveling transmission system and used for a working vehicle, which is so constructed that a input shaft 8 is coaxially freely perforated through a hollow traveling clutch shaft 13, both ends of input shaft 8 projects from the traveling clutch shaft 13, one projecting portion is journalled between a bearing wall 1b of a front transmission casing 1 and a front bearing plate 4 for covering an opening at the front end of the wall 1b, and a selecting device A including a forward and rearward movement switching clutch B, as an embodiment of an auxiliary speed change device, is disposed at this projecting portion. At the front bearing plate 4 is formed an oil relaying unit 4a in which an oil passage for the forward and rearward movement switching clutch B is bored, so that an oil passage bored in a thick portion 1d of the outer wall connects through a hydraulic control valve unit 35 attached to the outer wall of the front transmission casing 1 with the oil passage of oil relaying unit 4a without need of piping. Meanwhile, a PTO clutch 9 is coaxially disposed with the input shaft 8 sequentially to the projection thereof, between the input shaft 8 and the PTO clutch shaft 9 is disposed a PTO assembly of combination of a hydraulic PTO clutch D and hydraulic PTO brake E, an annular groove 53c is formed on the outer peripheral surface, a rear surface portion of the drum 53 is rotatably mounted to a bearing wall 2a of the rear transmission casing 2, and abutting portion 53e is formed on the inner periphery of the brake drum 53 and made possible to abut against a stopper pin 61 projecting into a recess 2f at the bearing wall 2, thereby allowing the idling of brake drum 53 in a predetermined angle with respect to the bearing wall 2a.
REFERENCES:
patent: 5123293 (1992-06-01), Umemoto et al.
patent: 5339703 (1994-08-01), Tanaka
Inanaga Masashi
Kojima Masaaki
Rugou Akinobu
Kanzaki Kokyukoki Mfg. Co. Ltd.
Marmor Charles A.
Waddell Tisha D.
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