Differential limiting mechanism of differential apparatus
First Claim
1. A differential limiting mechanism arranged in a differential apparatus which has a differential casing receiving an input from an engine and rotated around a main rotating axis as a center, a pinion shaft arranged within said differential casing and extending in a direction crossing said main rotating axis and rotated integrally with said differential casing, a pinion gear rotatably arranged around an axis of said pinion shaft, and has a pair of output side gears rotatably arranged with said main rotating axis as a center and engaged with said pinion gear and receiving thrust force at a differential rotating time;
- said differential limiting mechanism limiting a differential movement between said pair of side gears and comprising;
a first cone portion formed in the shape of a tapered face around the main rotating axis such that the first cone portion is arranged within said differential casing and is rotated integrally with one of said pair of side gears and is inclined with respect to said main rotating axis; and
a second cone portion formed in the shape of a tapered face such that the second cone portion is arranged within said differential casing and is rotated integrally with the differential casing and is inclined opposite to said first cone portion and is pressed by said first cone portion and is slid together with said first cone portion when said one of the side gears receives the thrust force;
said first and second cone portions coming in contact with each other so as to prevent the contact between the first and second cone portions only in a small diameter portion most proximate to said main rotating shaft in a state in which said side gear receives the thrust force.
1 Assignment
0 Petitions
Accused Products
Abstract
A differential apparatus has a differential casing, a pinion gear, a pair of side gears engaged with the pinion gear, and a cone clutch for limiting a differential movement between the side gears. In this differential apparatus, the cone clutch is constructed by a female side cone portion formed in an inner circumference of the differential casing, and a male side cone portion formed in an outer circumference of the pair of side gears. The female side cone portion is formed in the shape of a tapered face in which a conical generating line is a straight line. The male side cone portion is formed in the shape of a tapered face having a predetermined curvature and a generating line projecting to the female side cone portion. Thus, no sliding portion is offset to a small diameter portion even when thrust applied to the cone clutch is increased, thereby improving durability of the cone clutch.
21 Citations
8 Claims
-
1. A differential limiting mechanism arranged in a differential apparatus which has a differential casing receiving an input from an engine and rotated around a main rotating axis as a center, a pinion shaft arranged within said differential casing and extending in a direction crossing said main rotating axis and rotated integrally with said differential casing, a pinion gear rotatably arranged around an axis of said pinion shaft, and has a pair of output side gears rotatably arranged with said main rotating axis as a center and engaged with said pinion gear and receiving thrust force at a differential rotating time;
- said differential limiting mechanism limiting a differential movement between said pair of side gears and comprising;
a first cone portion formed in the shape of a tapered face around the main rotating axis such that the first cone portion is arranged within said differential casing and is rotated integrally with one of said pair of side gears and is inclined with respect to said main rotating axis; and a second cone portion formed in the shape of a tapered face such that the second cone portion is arranged within said differential casing and is rotated integrally with the differential casing and is inclined opposite to said first cone portion and is pressed by said first cone portion and is slid together with said first cone portion when said one of the side gears receives the thrust force; said first and second cone portions coming in contact with each other so as to prevent the contact between the first and second cone portions only in a small diameter portion most proximate to said main rotating shaft in a state in which said side gear receives the thrust force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- said differential limiting mechanism limiting a differential movement between said pair of side gears and comprising;
Specification
-
- Resources
-
Current AssigneeTochigi Fuji Sangyo Kabushiki Kaisha (Melrose Industries Plc)
-
Original AssigneeTochigi Fuji Sangyo Kabushiki Kaisha (Melrose Industries Plc)
-
InventorsIshikawa, Yasuhiko
-
Primary Examiner(s)Wright, Dirk
-
Assistant Examiner(s)Kwon, Peter T.
-
Application NumberUS08/904,002Time in Patent Office530 DaysField of Search475/230, 475/231, 475/236, 74/606 RUS Class Current475/231CPC Class CodesF16H 48/08 comprising bevel gearsF16H 48/22 using friction clutches or ...F16H 48/40 characterised by features o...
