Support assembly and keyboard apparatus
US-2018012573-A1 · Jan 11, 2018 · US
Support assembly and keyboard apparatus
US10311836B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10311836-B2 |
| Application number | US-201715712228-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 22, 2017 |
| Priority date | Mar 25, 2015 |
| Publication date | Jun 4, 2019 |
| Grant date | Jun 4, 2019 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A support assembly includes a support rotatable along a first surface with respect to a support rail, a repetition lever rotatable on the support, and a jack rotatable on the support and disposed to at least partially overlaps the repetition lever. The repetition lever includes a first contact portion which makes contact with a regulating portion which regulates rotation, the jack includes a second contact portion which makes contact with the regulating portion which regulates rotation, and the repetition lever and the jack are provided so that the first contact portion and the second contact portion overlap each other.
First claim
Opening claim text (preview).
What is claimed is: 1. A support assembly comprising: a support rotatable along a first surface with respect to a frame; a repetition lever rotatable on the support; and a jack rotatable on the support, the repetition lever including a first contact portion which regulates a rotating operation of the repetition lever, the jack including a second contact portion which regulates a rotating operation of the jack, and the first contact portion and the second contact portion making contact with a common regulating portion to regulate the rotating operations of the repetition lever and the jack. 2. The support assembly according to claim 1 , wherein the repetition lever has an extension portion, and the first contact portion is included in one end of the extension portion of the repetition lever. 3. The support assembly according to claim 1 , wherein the jack has a jack extension portion, and the second contact portion is included in the jack extension portion. 4. The support assembly according to claim 3 , wherein the second contact portion in the jack extension portion is disposed on an extension line connecting a rotation center of the repetition lever and a portion where the jack crosses the repetition lever. 5. The support assembly according to claim 1 , wherein the repetition lever has an extension portion, the first contact portion is included in one end of the extension portion of the repetition lever, the jack has a jack extension portion, and the second contact portion is included in the jack extension portion. 6. The support assembly according to claim 1 , wherein the first contact portion and the second contact portion make contact with the same surface of the common regulating portion which regulates rotation of the repetition lever and the jack. 7. The support assembly according to claim 1 , wherein the first contact portion and the second contact portion are disposed on a radius connecting a rotation center of the support and the common regulating portion which regulates rotation of the repetition lever and the jack. 8. The support assembly according to claim 1 , wherein the repetition lever and the jack are provided so that one of the repetition lever and the jack interposes another thereof in at least a portion where the first contact portion and the second contact portion overlap each other. 9. The support assembly according to claim 1 , wherein the extension portion of the repetition lever and the jack are disposed in sliding contact with each other in at least one location. 10. The support assembly according to claim 3 , wherein the extension portion of the repetition lever and the jack extension portion are disposed in sliding contact with each other in at least one location. 11. A keyboard apparatus comprising: a plurality of support assemblies, each of the plurality of support assemblies having a support rotatable along a first surface with respect to a frame, a repetition lever rotatable on the support, and a jack rotatable on the support, the repetition lever including a first contact portion which regulates a rotating operation of the repetition lever, the jack including a second contact portion which regulates a rotating operation of the lack, and the first contact portion and the second contact portion making contact with a common regulating portion to regulate the rotating operations of the repetition lever and the jack; and keys disposed to respectively correspond to the plurality of support assemblies to rotate the support assemblies. 12. The keyboard apparatus according to claim 11 , wherein the repetition lever has an extension portion, and the first contact portion is included in one end of the extension portion of the repetition lever. 13. The keyboard apparatus according to claim 11 , wherein the jack has a jack extension portion, and the second contact portion is included in the jack extension portion. 14. The keyboard apparatus according to claim 13 , wherein the second contact portion in the jack extension portion is disposed on an extension line connecting a rotation center of the repetition lever and a portion where the jack crosses the repetition lever. 15. The keyboard apparatus according to claim 11 , wherein the repetition lever has an extension portion, the first contact portion is included in one end of the extension portion of the repetition lever, the jack has a jack extension portion, and the second contact portion is included in the jack extension portion. 16. The keyboard apparatus according to claim 11 , wherein the first contact portion and the second contact portion make contact with the same surface of the common regulating portion which regulates rotation of the repetition lever and the jack. 17. The keyboard apparatus according to claim 11 , wherein the first contact portion and the second contact portion are disposed on a radius connecting a rotation center of the support and the common regulating portion which regulates rotation of the repetition lever and the jack. 18. The keyboard apparatus according to claim 11 , wherein the repetition lever and the jack are provided so that one of the repetition lever and the jack interposes another thereof in at least a portion where the first contact portion and the second contact portion overlap each other. 19. The keyboard apparatus according to claim 11 , wherein the extension portion of the repetition lever and the jack are disposed in sliding contact with each other in at least one location. 20. The keyboard apparatus according to claim 13 , wherein the extension portion of the repetition lever and the jack extension portion are disposed in sliding contact with each other in at least one location.
Assignees
Inventors
Classifications
Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments · CPC title
the action being mounted in a plane below the keyboard · CPC title
of grand pianos · CPC title
Keys with an arrangement for simulating the feeling of a piano key, e.g. using counterweights, springs, cams · CPC title
using a light beam to detect key, pedal or note actuation · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10311836B2 cover?
- A support assembly includes a support rotatable along a first surface with respect to a support rail, a repetition lever rotatable on the support, and a jack rotatable on the support and disposed to at least partially overlaps the repetition lever. The repetition lever includes a first contact portion which makes contact with a regulating portion which regulates rotation, the jack includes a se…
- Who is the assignee on this patent?
- Yamaha Corp
- What technology area does this patent fall under?
- Primary CPC classification G10C3/168. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 04 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).