Magnetic ring for detecting the rotation of an object
First Claim
1. A ring to be attached to a rotating body for producing a magnetic signal in cooperation with a magnetic sensor relative to which the rotating body rotates, comprising:
- a magnetic ring member having an alternating magnetic property along its circumference consisting of synthetic resin in which magnetic material is dispersed; and
a reinforcement ring member which is made of synthetic resin material and substantially surrounds the magnetic ring member.
1 Assignment
0 Petitions
Accused Products
Abstract
A ring to be attached to a rotating body for producing a magnetic signal in cooperation with a magnetic sensor relative to which the rotating body rotates, comprising: a magnetic ring member having an alternating magnetic property along its circumference consisting of synthetic resin in which magnetic material is dispersed; and a reinforcement ring member which is made of synthetic resin material and substantially surrounds the magnetic ring member. Alternatively, the reinforcement ring may consist of a metallic band which extends the full circumferential surface of the ring. By thus reinforcing the resinous magnetic material, the cost of the ring can be reduced, and the increased mechanical strength of the ring allows easy handling and effective press fitting of the ring. By forming the ring with a plurality of arcuate portions, the stocking and installing of the ring is facilitated.
40 Citations
19 Claims
-
1. A ring to be attached to a rotating body for producing a magnetic signal in cooperation with a magnetic sensor relative to which the rotating body rotates, comprising:
-
a magnetic ring member having an alternating magnetic property along its circumference consisting of synthetic resin in which magnetic material is dispersed; and a reinforcement ring member which is made of synthetic resin material and substantially surrounds the magnetic ring member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A ring to be attached to a rotating body for producing a magnetic signal in cooperation with a magnetic sensor relative to which the rotating body rotates, comprising:
-
a magnetic ring member having an alternating magnetic property along its circumference consisting of synthetic resin in which magnetic material is dispersed; and a reinforcement ring member which is made of metal and extends along the circumference of the magnetic ring member. - View Dependent Claims (11, 12)
-
-
13. A ring to be attached to a rotating body for producing a magnetic signal in cooperation with a magnetic sensor relative to which the rotating body rotates, comprising:
-
a magnetic ring member having an alternating magnetic property along its circumference which comprises at least two arcuate parts, forming a complete circle through mutual cooperation thereof, consisting of synthetic resin in which magnetic material is dispersed; and a fastening means for holding the arcuate parts together in the state of a complete ring. - View Dependent Claims (14, 15, 16)
-
-
17. A ring to be attached to a rotating body for producing a magnetic signal in cooperation with a magnetic sensor relative to which the rotation body rotates, comprising:
-
a magnetic ring member having an alternating magnetic property along its circumference consisting of synthetic resin in which magnetic material is dispersed; and a reinforcement ring member which is made of alloy material and extends along the circumference of the magnetic ring member. - View Dependent Claims (18, 19)
-
Specification