# US 2013/0154445 A1 · Spindle motor

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- Number: US 2013/0154445 A1
- Document ID: US20130154445A1
- Status: Published application
- Kind: A1
- Application number: 13/707,815
- Filed: 2012-12-07
- Published: 2013-06-20
- Earliest claimed: 2011-12-19
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Sang Jae SONG
- Web page: https://patentgrep.com/patent/US20130154445A1

## CPC

- H02K 7/08: Structural association with bearings
- H02K 5/163: {radially supporting the rotary shaft at only one end of the rotor (H02K5/165, H02K5/167, H02K5/173 take precedence)}
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})

## Abstract

There is provided a spindle motor including: a sleeve having a protrusion extending in a radial direction; a hub having a main wall part enclosing the sleeve; and a regulating member disposed between the main wall part and the sleeve, wherein the main wall part is provided with an adhesive injection hole so that an adhesive is injected between the regulating member and the main wall part.

## Claims

### Claim 1

A spindle motor, comprising:
a sleeve having a protrusion extending in a radial direction;
a hub having a main wall part enclosing the sleeve; and
a regulating member disposed between the main wall part and the sleeve,
wherein the main wall part is provided with an adhesive injection hole so that an adhesive is injected between the regulating member and the main wall part.

### Claim 2 (depends on 1)

The spindle motor of claim 1, wherein the regulating member is provided with a groove connected to the adhesive injection hole.

### Claim 3 (depends on 2)

The spindle motor of claim 2, wherein the groove is extendedly formed in a circumferential direction of the regulating member.

### Claim 4 (depends on 2)

The spindle motor of claim 2, wherein the adhesive injection hole includes a plurality of adhesive injection holes formed to have a predetermined interval therebetween in a circumferential direction of the main wall part.

### Claim 5 (depends on 4)

The spindle motor of claim 4, wherein the regulating member is provided with a plurality of grooves connected to the plurality of adhesive injection holes.

### Claim 6 (depends on 5)

The spindle motor of claim 5, wherein the plurality of grooves are extendedly formed in the circumferential direction of the regulating member.

### Claim 7 (depends on 6)

The spindle motor of claim 6, wherein the plurality of grooves are formed in parallel in the circumferential direction of the regulating member so as not to intersect.

### Claim 8 (depends on 6)

The spindle motor of claim 6, wherein the plurality of grooves are connected to each other so that the adhesive injected through the individual adhesive injection holes is uniformly distributed.