SLEEVE, SLEEVE UNIT, MOTOR, AND METHOD FOR MANUFACTURING SLEEVE AND SLEEVE UNIT
First Claim
1. A method of manufacturing a sleeve unit including a sleeve and a sleeve housing,the sleeve has a substantially cylindrical body centered on a center axis and includes an axially first side end surface and an axially second side end surface, andthe sleeve housing has a substantially cylindrical body in which the sleeve is accommodated,the method comprising steps of:
- (a) applying an adhesive to a portion of an inner surface of the sleeve housing, which is to radially oppose an outer surface of the sleeve in the sleeve unit; and
(b) inserting the sleeve into the sleeve housing from the axially first side end surface of the sleeve along an axial direction,whereinan outer diameter of the sleeve is approximate to an inner diameter of the sleeve housing,the sleeve includes a first connecting surface connecting the axially first end side surface and the outer surface of the sleeve, an outer diameter of the axially first side surface is smaller than a diameter of the outer surface of the sleeve,a portion of the adhesive is spread along the inner surface of the sleeve housing, and the other portion of the adhesive is held on the first connecting surface and between the first connecting surface and the inner surface of the sleeve housing in the step (b).
1 Assignment
0 Petitions
Accused Products
Abstract
Adhesive is applied to an inner surface of a sleeve housing, and a sleeve is inserted from a lower end part thereof into the sleeve housing. An outer edge of the lower end part of the sleeve is provided with an adhesive holding portion in a chamfered shape, and a part of the adhesive is held between the adhesive holding portion and the inner surface of the sleeve housing.
41 Citations
26 Claims
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1. A method of manufacturing a sleeve unit including a sleeve and a sleeve housing,
the sleeve has a substantially cylindrical body centered on a center axis and includes an axially first side end surface and an axially second side end surface, and the sleeve housing has a substantially cylindrical body in which the sleeve is accommodated, the method comprising steps of: -
(a) applying an adhesive to a portion of an inner surface of the sleeve housing, which is to radially oppose an outer surface of the sleeve in the sleeve unit; and (b) inserting the sleeve into the sleeve housing from the axially first side end surface of the sleeve along an axial direction, wherein an outer diameter of the sleeve is approximate to an inner diameter of the sleeve housing, the sleeve includes a first connecting surface connecting the axially first end side surface and the outer surface of the sleeve, an outer diameter of the axially first side surface is smaller than a diameter of the outer surface of the sleeve, a portion of the adhesive is spread along the inner surface of the sleeve housing, and the other portion of the adhesive is held on the first connecting surface and between the first connecting surface and the inner surface of the sleeve housing in the step (b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12)
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11. A method of manufacturing a sleeve unit including a sleeve and a sleeve housing,
the sleeve has a substantially cylindrical body centered on a center axis and includes an axially first side end surface and an axially second side end surface, and the sleeve housing has a substantially cylindrical body in which the sleeve is accommodated, the method comprising steps of: -
(a) applying an adhesive to a portion of an outer surface of the sleeve, which is to radially oppose an inner surface of the sleeve housing in the sleeve unit; and (b) inserting the sleeve into the sleeve housing from the axially second side end surface of the sleeve along an axial direction, wherein an outer diameter of the sleeve is approximate to an inner diameter of the sleeve housing, the sleeve includes a first connecting surface connecting the axially first end side surface and the outer surface of the sleeve, an outer diameter of the axially first side surface is smaller than a diameter of the outer surface of the sleeve, a portion of the adhesive is spread along the inner surface of the sleeve housing, and the other portion of the adhesive is held on the first connecting surface and between the first connecting surface and the inner surface of the sleeve housing in the step (b). - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A sleeve unit used for a motor having a rotor hub rotatable about the center axis, comprising:
a sleeve having a cylindrical shape and including an axially first side end surface arranged in an axially first side, an axially second side end surface arranged in an axially second side which is an axially opposite side of the axially first side, a first connecting surface connecting an outer surface and the first axial surface having an outer diameter smaller than that of the outer surface, and a second connecting surface connecting the outer surface and the second axial surface having an outer diameter smaller than that of the outer surface; a sleeve housing accommodating the sleeve and having an inner surface to which the outer surface of the sleeve is attached; and an adhesive a portion of which is arranged between the inner surface of the sleeve housing and the outer surface of the sleeve, wherein an adhesive holding portion is defined between the first connecting surface and the inner surface of the sleeve housing, and a portion of the adhesive is held in the adhesive holding portion. - View Dependent Claims (22, 23, 24, 25, 26)
Specification