Pulsar Ring of Magnetic Rotary Encoder
First Claim
1. A pulsar ring of a magnetic type rotary encoder comprising:
- an annular holder made of a metal; and
a pulsar main body integrally formed on the holder by a magnetic rubber material,wherein said holder is provided with a disc portion to which said pulsar main body is bonded, a mounting tube portion having a smaller diameter than an outer diameter of the disc portion and being fixed to a rotating body, a fold-back portion folded back to an inner circumferential side from an outer circumference of said disc portion so as be formed in a curved shape having a round-shaped outer circumferential convex surface, and an intermediate portion extending to said mounting tube portion in such a direction as to be apart from said disc portion via the fold-back portion, and wherein an outer circumferential portion of the pulsar main body is provided with a guide portion which is formed so as to surround the round-shaped outer circumferential convex surface of the fold-back portion in the holder and is capable of coming into close contact with an inner circumferential surface of a circumferential wall portion of a pressure inserting jig with a suitable collapsing margin.
1 Assignment
0 Petitions
Accused Products
Abstract
To hold a pulsar ring (1) of a magnetic rotary encoder well concentrically by a pressure inserting jig (4) when the pulsar ring is installed on a rotary body (3), the pulsar ring (1) comprises a metallic annular holder (10) and a pulsar main body (20) of a magnetic rubber material, the holder (10) comprises a disk portion (11) where the pulsar body (20) is bonded, a mounting tube portion (12) having a diameter smaller than the outer diameter of the disk portion (11) and being fixed to the rotary body (3), a fold-back portion (15) folded inward, and an intermediate portion (13) extending therefrom toward the mounting tube portion (12) so as to be separated from the disk portion (11), and the outer circumference of the fold-back portion (15) or a guide portion (22) mounted thereon is fitted to a circumferential wall portion (42) of the jig (4).
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Citations
2 Claims
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1. A pulsar ring of a magnetic type rotary encoder comprising:
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an annular holder made of a metal; and a pulsar main body integrally formed on the holder by a magnetic rubber material, wherein said holder is provided with a disc portion to which said pulsar main body is bonded, a mounting tube portion having a smaller diameter than an outer diameter of the disc portion and being fixed to a rotating body, a fold-back portion folded back to an inner circumferential side from an outer circumference of said disc portion so as be formed in a curved shape having a round-shaped outer circumferential convex surface, and an intermediate portion extending to said mounting tube portion in such a direction as to be apart from said disc portion via the fold-back portion, and wherein an outer circumferential portion of the pulsar main body is provided with a guide portion which is formed so as to surround the round-shaped outer circumferential convex surface of the fold-back portion in the holder and is capable of coming into close contact with an inner circumferential surface of a circumferential wall portion of a pressure inserting jig with a suitable collapsing margin. - View Dependent Claims (2)
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Specification