# US 2017/0257969 A1 · Key lock module for mounting and securing an information handling system

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- Number: US 2017/0257969 A1
- Document ID: US20170257969A1
- Status: Published application
- Kind: A1
- Application number: 15/061,706
- Filed: 2016-03-04
- Published: 2017-09-07
- Earliest claimed: 2016-03-04
- Assignees: Dell Products L.P.
- Applicants: Dell Products L.P.
- Inventors: Yi-Hsin Kuan; Yao-Chien Lien; Yen Tai Liu
- Web page: https://patentgrep.com/patent/US20170257969A1

## CPC

- H05K 7/1489: {characterized by the mounting of blades therein, e.g. brackets, rails, trays (H05K7/1491 takes precedence)}
- E05B 65/46: for drawers
- E05C 3/042: {the handle being at one side, the bolt at the other side or inside the wing}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- E05B: LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05C: BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS (latching means for sideboard or tailgate structures for vehicles B62D, {B62D33/02}; fastening devices for constructional or engineering elements E04, F16B; locks, fastening devices structurally or operatively combined or having significant cooperation with locks E05B; means for operating or controlling wing fasteners in conjunction with mechanisms for moving the wing E05F)

## Abstract

A key lock module for securing a chassis for use with an information handling system to a rack. The key lock module includes a bracket and a rotatable lock housed in the bracket. The rotatable lock includes a locking arm configured to rotate between a locked position and an unlocked position. The key lock module also includes a bracket hook having a first end and a second end. The first end is coupled to the bracket such that the bracket hook may be depressed when the rotatable lock is in the unlocked position. The second end is positioned to interface with the locking arm when the rotatable lock is in the locked position such that the bracket hook may not be depressed. The bracket hook also is configured to engage with a rack to prevent a chassis associated with the key lock module from being removed from the rack when the bracket hook is not depressed.

## Claims

### Claim 1

A key lock module configured to secure a chassis for use with an information handling system in a rack, the key lock module including:
a bracket;
a rotatable lock housed in the bracket and comprising a locking arm configured to rotate between a locked position and an unlocked position; and
a bracket hook having a first end and a second end, wherein:
the first end is coupled to the bracket such that the bracket hook may be depressed when the rotatable lock is in the unlocked position;
the second end is positioned to interface with the locking arm when the rotatable lock is in the locked position such that the bracket hook may not be depressed; and
the bracket hook is configured to engage with a rack to prevent a chassis associated with the key lock module from being removed from the rack when the bracket hook is not depressed.

### Claim 2 (depends on 1)

The key lock module of claim 1, wherein when the rotatable lock is in the unlocked position, the second end of the bracket hook does not interface with the locking arm when the bracket hook is depressed.

### Claim 3 (depends on 1)

The key lock module of claim 1, further including a key lock latch and a hook extending from the key lock latch, wherein the key lock latch is configured to interface with the locking arm when the rotatable lock is in the locked position.

### Claim 4 (depends on 3)

The key lock module of claim 3, wherein the key lock latch is configured to move to a release position when the rotatable lock is in the unlocked position.

### Claim 5 (depends on 1)

The key lock module of claim 1, wherein the bracket includes a front portion and a side portion, the side portion configured to attach to the chassis.

### Claim 6

A rack system for use with an information handling system comprising:
a vertical post configured to interface with a key lock module, the key lock module including:
a bracket;
a rotatable lock housed in the bracket and comprising a locking arm configured to rotate between a locked position and an unlocked position; and
a bracket hook having a first end and a second end, wherein:
the first end is coupled to the bracket such that the bracket hook may be depressed when the rotatable lock is in the unlocked position;
the second end is positioned to interface with the locking arm when the rotatable lock is in the locked position such that the bracket hook may not be depressed; and
the bracket hook is configured to engage with a rack to prevent a chassis associated with the key lock module from being removed from the rack when the bracket hook is not depressed.

### Claim 7 (depends on 6)

The rack system of claim 6, wherein when the rotatable lock is in the unlocked position, the second end of the bracket hook does not interface with the locking arm when the bracket hook is depressed.

### Claim 8 (depends on 6)

The rack system of claim 6, wherein the bracket hook is configured to be depressed to interface with the vertical post during installation of the chassis and removal of the chassis.

### Claim 9 (depends on 6)

The rack system of claim 6, wherein the key lock module may not disengage from the vertical post when the rotatable lock is in the locked position.

### Claim 10 (depends on 6)

The rack system of claim 6, further including a key lock latch and a hook extending from the key lock latch, wherein the hook is configured to engage with a bezel associated with the chassis.

### Claim 11 (depends on 10)

The rack system of claim 10, wherein the key lock latch is configured to interface with the locking arm when the rotatable lock is in the locked position.

### Claim 12 (depends on 10)

The rack system of claim 10, wherein the key lock latch is configured to move to a release position when the rotatable lock is in the unlocked position.

### Claim 13 (depends on 6)

The rack system of claim 6, further including a second key lock module.

### Claim 14

An information handling system comprising:
a chassis configured to house the information handling system; and
a rack with a vertical post configured to interface with a key lock module, the key lock module including,
a bracket;
a rotatable lock housed in the bracket and comprising a locking arm configured to rotate between a locked position and an unlocked position; and
a bracket hook having a first end and a second end, wherein:
the first end is coupled to the bracket such that the bracket hook may be depressed when the rotatable lock is in the unlocked position;
the second end is positioned to interface with the locking arm when the rotatable lock is in the locked position such that the bracket hook may not be depressed; and
the bracket hook is configured to engage with a rack to prevent the chassis associated with the key lock module from being removed from the rack when the bracket hook is not depressed.

### Claim 15 (depends on 14)

The information handling system of claim 14, wherein when the rotatable lock is in the unlocked position, the second end of the bracket hook does not interface with the locking arm when the bracket hook is depressed.

### Claim 16 (depends on 14)

The information handling system of claim 14, wherein the bracket hook is configured to be depressed to interface with the vertical post during installation and removal of the chassis.

### Claim 17 (depends on 14)

The information handling system of claim 14, wherein the key lock module may not disengage from the vertical post when the rotatable lock is in the locked position.

### Claim 18 (depends on 14)

The information handling system of claim 14, further including a key lock latch and a hook extending from the key lock latch, wherein the key lock latch is configured to interface with the locking arm when the rotatable lock is in the locked position.

### Claim 19 (depends on 18)

The information handling system of claim 18, wherein the hook is configured to engage with a bezel associated with the chassis.

### Claim 20 (depends on 14)

The information handling system of claim 14, further including a second key lock module.