Method for producing a joint member, and a method for producing an angular position holding apparatus by using a joint member produced by the producing method
AssigneeOrigin Company, Limited
InventorTaro Isobe
Life of this patent
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Abstract
Provided is a novel producing method for enabling to easily produce a high-quality joint member by powder metallurgy, where the joint member has a male engaging portion and a female engaging portion arranged coaxially at different positions in the axial direction. A male member (14) having a male engaging portion (10) and a female member (16) having a female engaging portion (12) are formed separately by powder metallurgy, and then, the male member (14) and the female member (16) are combined in a relatively non-rotatable manner.
Claims6
A method for producing a joint member having a male engaging portion and a female engaging portion arranged coaxially at different positions in an axial direction, the method comprising:
- forming a male member comprising the male engaging portion and a locking portion, and a female member comprising the female engaging portion and a lock portion, separately by powder metallurgy;
- and
- locking the locking portion and the lock portion so as to combine the male member and the female member in a relatively non-rotatable manner, wherein
- the male member is provided with a flange portion to which one end of the male engaging portion is fixed,
- the female member is provided with a recess portion to accept the flange portion,
- the locking portion is a protrusion that protrudes radially outward on an outer peripheral surface of the flange portion, and
- the lock portion is a depression with which the protrusion is fitted on an inner peripheral surface of the recess portion.
A method for producing an angular position holding apparatus that comprises:
- a joint member to mutually connect an input-side device and an output-side device;
- a braking torque applying means to apply required braking torque to the joint member;
- a fixed housing;
- and a shield mounted on the fixed housing, so that the joint member is supported from both sides in an axial direction by an end plate of the fixed housing and the shield, the joint member rotates against the required braking torque when a rotation torque is inputted from the input-side device, and the joint member is held by the required braking torque when no rotation torque is inputted from the input-side device,
- wherein the joint member has a male engaging portion and a female engaging portion arranged coaxially at different positions in the axial direction, and the joint member is produced by:
- forming a male member comprising the male engaging portion and a locking portion, and a female member that is arranged inside the fixed housing and comprises the female engaging portion and a lock portion, separately by powder metallurgy;
- and
- locking the locking portion and the lock portion so as to combine the male member and the female member in a relatively non-rotatable manner.
Dependencies are inferred from the claim text.