Rotated hood latch

Patent metadata

Field	Value
Publication number	US-11459792-B2
Application number	US-201916393513-A
Country	US
Kind code	B2
Filing date	Apr 24, 2019
Priority date	Apr 24, 2019
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

Apparatuses and systems described herein provide hood latch designs for removable hoods of chassis of computing devices. A hood latch for the removable hood of a chassis includes an actuator that has an oblong aperture. A direction of a long dimension of the oblong aperture is offset from an actuator-open direction by an acute angle. A pin rigidly attached to a base portion of the chassis rests in the oblong aperture. When the actuator moves from an actuator-closed position to an actuator-open position, the actuator pushes against the pin and the pin slides from a pin-closed position within the aperture to a pin-open position within the aperture. Since the pin is rigidly attached to the chassis and the hood latch is affixed to the hood, hood slides from a hood-closed position to a hood-open position as the actuator moves from the actuator-closed position to the actuator-open position.

First claim

What is claimed is:

1. A hood latch comprising:
a hinge;
a handle configured to rotate about the hinge between a handle-closed position and a handle-open position, wherein the handle comprises a first geometric feature at an end of the handle that is proximal relative to the hinge; and
an actuator comprising:
a first end with a second geometric feature, wherein the first end is proximal relative to the hinge, wherein the first geometric feature of the handle is configured to engage with the second geometric feature to push the actuator in an actuator-open direction when the handle is rotated from the closed position to the open position, and
a second end with an aperture, wherein the second end is distal relative to the hinge, wherein:
a cross-sectional shape of the aperture is oblong;
a long dimension of the cross-sectional shape is longer than a short dimension of the cross-sectional shape; and
a direction of the long dimension is offset from the actuator-open direction by an angle that is acute.

2. The hood latch of claim 1 , wherein the cross-sectional shape of the aperture is an obround.

3. The hood latch of claim 1 , wherein the angle is between thirty degrees and sixty degrees.

4. The hood latch of claim 3 , wherein the angle is between forty degrees and fifty degrees.

5. The hood latch of claim 1 , further comprising:
a resilient mechanism that exerts a force on the actuator that biases the actuator toward an actuator-open position.

6. The hood latch of claim 1 , wherein the first geometric feature and the second geometric feature are gears.

7. A chassis for a computing device, the chassis comprising:
a base portion comprising an opening;
a removable hood that covers the opening when the hood is in a hood-closed position relative to the base portion, wherein the hood is configured to slide along a cross-sectional plane of the opening in a hood-open direction when the hood is moved from the hood-closed position to a hood-open position;
a pin rigidly attached to the base portion and extending toward the opening;
a hood latch affixed to the hood, the hood latch comprising:
an actuator configured to slide in an actuator-open direction when the actuator is moved from an actuator-closed position relative to the hood to an actuator-open position, the actuator comprising an end with an aperture, wherein:
a cross-sectional shape of the aperture is oblong such that a long dimension of the cross-sectional shape is longer than a short dimension of the cross-sectional shape,
a direction of the long dimension is offset from the actuator-open direction by a first offset angle that is acute,
a cross-sectional radius of the pin equals half of the short dimension,
the pin rests at a pin-closed position within the aperture when the hood is in the hood-closed position and the actuator is in the actuator-closed position,
the pin moves from the pin-closed position to a pin-open position within the aperture when the actuator moves from the actuator-closed position to the actuator-open position and the hood moves from the hood-closed position to the hood-open position, and
the actuator-open direction is offset from the hood-open direction by a second offset angle.

8. The chassis of claim 7 , wherein the second offset angle is ninety degrees.

9. The chassis of claim 8 , wherein the first offset angle is forty-five degrees.

10. The chassis of claim 9 , wherein a movement distance of the hood between the hood-open position and the hood-closed position equals a square root of a product squared, wherein the product equals a sine of the first offset angle multiplied by the long dimension of the cross-sectional shape of the aperture.

11. The chassis of claim 7 , wherein the cross-sectional shape of the aperture is an obround.

12. The chassis of claim 11 , wherein the hood latch further comprises:
a resilient mechanism that exerts a force on the actuator that biases the actuator toward the actuator-open position.

13. The chassis of claim 11 , wherein:
the hood comprises a hood-locking form disposed along a ridge of the hood; and
the base portion comprises a L-shaped cutout disposed along a ridge of the base portion that underlays the ridge of the hood when the hood is in the hood-closed position;
the L-shaped cutout extends into an edge of the ridge of the base portion that is proximal to the cross-sectional plane of the opening;
a recess defined by the by the L-shaped cutout prevents the hood from being moved in a direction orthogonal to the cross-sectional plane of the opening when the hood is in the hood-closed position by interlocking with the hood-locking form; and
a width of the recess equals a square root of a product squared, wherein the product equals a sine of the first offset angle multiplied by the long dimension of the cross-sectional shape of the aperture.

14. The chassis of claim 7 , wherein the hood latch further comprises:
a hinge;
a handle positioned on an exterior side of the hood, wherein the handle is configured to rotate about the hinge between a handle-closed position and a handle-closed open position relative to the hood, wherein a geometric feature at an end of the handle that is proximal relative to the hinge is configured to push the actuator from the actuator-closed position to the actuator-open position when the handle is rotated from the handle-closed position to the handle-closed position.

Assignees

• Hewlett Packard Entpr Dev Lp

Inventors

• Westphall Paul E
• Sauer Keith

Classifications

• E05B65/08

  for sliding wings · CPC title

• G06F1/20

  Cooling means · CPC title

• G06F1/182

  with special features, e.g. for use in industrial environments; grounding or shielding against radio frequency interference [RFI] or electromagnetical interference [EMI] · CPC title

• G06F1/187

  Mounting of fixed or removable disk drives · CPC title

• H05K7/1487 Primary

  Blade assemblies, e.g. blade cases or inner arrangements within a blade · CPC title