Electronic parking brake apparatus
US-2021404526-A1 · Dec 30, 2021 · US
Irreversible mechanism
US9470280B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9470280-B2 |
| Application number | US-201214424366-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 27, 2012 |
| Priority date | Aug 27, 2012 |
| Publication date | Oct 18, 2016 |
| Grant date | Oct 18, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An irreversible mechanism is provided with an input shaft that receives input of rotational drive force, an output shaft that receives transmission of torque from the input shaft, a ball ramp part that generates radial force when load torque is applied to the output shaft, a brake lining that receives the radial force from the ball ramp part, a brake drum that the brake lining is pressed against when the brake lining receives the radial force from the ball ramp part, and a housing that accommodates the input shaft, the output shaft, the ball ramp part, the brake lining and the brake drum inside.
First claim
Opening claim text (preview).
The invention claimed is: 1. An irreversible mechanism comprising: an input shaft that receives input of rotational drive force; an output shaft that receives transmission of torque from the input shaft; a ball ramp part including a first plate on the output shaft, a second plate facing the first plate, and a ball that is placed between a first ball ramp of the first plate and a second ball ramp of the second plate, the ball ramp part generating radial force when load torque is applied to the output shaft and the first plate rotates relative to the second plate; a brake lining that receives the radial force from the ball ramp part through the second plate; a brake drum that the brake lining is pressed against when the brake lining receives the radial force from the ball ramp part; and a housing that accommodates the input shaft, the output shaft, the ball ramp part, the brake lining, the brake drum and an energizing means inside. 2. The irreversible mechanism according to claim 1 , wherein the brake lining is provided outside the second plate, the brake lining having a positioning recess being capable of engaging with a positioning projection provided on an outer surface of the second plate.
Assignees
Inventors
Classifications
actuated entirely mechanically · CPC title
adapted for pressing members apart {, e.g. for drum brakes} · CPC title
Wedges · CPC title
Mechanical · CPC title
- F16D51/12Primary
mechanically actuated · CPC title
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Frequently asked questions
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- What does patent US9470280B2 cover?
- An irreversible mechanism is provided with an input shaft that receives input of rotational drive force, an output shaft that receives transmission of torque from the input shaft, a ball ramp part that generates radial force when load torque is applied to the output shaft, a brake lining that receives the radial force from the ball ramp part, a brake drum that the brake lining is pressed agains…
- Who is the assignee on this patent?
- Otozai Keitaro, Shimadzu Corp
- What technology area does this patent fall under?
- Primary CPC classification F16D51/12. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 18 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).