Motion assistance apparatus
US-11013656-B2 · May 25, 2021 · US
Coupling structure and parallel link robot
US12576509B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12576509-B2 |
| Application number | US-202218853186-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 22, 2022 |
| Priority date | Jul 22, 2022 |
| Publication date | Mar 17, 2026 |
| Grant date | Mar 17, 2026 |
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.
The coupling structure includes: a pair of attachment members that are supported on two links) that each have a longitudinal axis and move parallel to each other with a gap therebetween so as to be able to rotate about rotation axes that are perpendicular to a plane that includes the longitudinal axes of both the links; and a coupling mechanism that fixes the distance between the pair of attachment members in an adjustable manner.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A coupling structure comprising: a pair of attachment members that are supported on two links that each have a longitudinal axis and move parallel to each other with a gap therebetween so as to be able to rotate about rotation axes that are perpendicular to a plane that includes the longitudinal axes of both of the links; and a coupling mechanism that fixes a distance between the pair of attachment members in an adjustable manner; wherein the coupling mechanism comprises two male screws fixed to respective attachment members and a nut member having two female screws that respectively engage with the two male screws, the two male screws are disposed on a same axis and are in a reverse thread relationship; wherein two fixing nuts are respectively fastened to the male screws, wherein, when the distance between the attachment members is adjusted by the respective male screws and the respective female screws, the two fixing nuts are fastened so as to be in firm contact with the nut member; and wherein each of the fixing nuts comprises an outer circumferential wall that surrounds, on an opposite side of the nut member, the male screw fastened to the fixing nut. 2 . The coupling structure according to claim 1 , wherein: each of the pair of attachment members comprises two flat plates extending substantially parallel to each other, and a corresponding link of the two link is supported by the two flat plates so as to sandwich the corresponding link. 3 . The coupling structure according to claim 2 , wherein each of the two flat plates is provided with a hook at a tip thereof. 4 . The coupling structure according to claim 2 , wherein each of the two flat plates is provided with a bearing. 5 . A parallel link robot comprising: a foundation; a movable portion that is disposed separated from the foundation by a gap; a plurality of arms that are connected to the foundation in a pivotable manner; two links that form a pair, the two links couple the arm and the movable portion, and the two links have longitudinal axes that are parallel to each other; and a coupling structure according to claim 1 that is provided between the pair of the two links.
Assignees
Inventors
Classifications
Means or methods for designing or fabricating manipulators · CPC title
Turnbuckles (for cables, ropes, or wire F16G11/12) · CPC title
- B25J9/0051Primary
with kinematics chains of the type rotary-universal-universal or rotary-spherical-spherical, e.g. Delta type manipulators · 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 US12576509B2 cover?
- The coupling structure includes: a pair of attachment members that are supported on two links) that each have a longitudinal axis and move parallel to each other with a gap therebetween so as to be able to rotate about rotation axes that are perpendicular to a plane that includes the longitudinal axes of both the links; and a coupling mechanism that fixes the distance between the pair of attach…
- Who is the assignee on this patent?
- Fanuc Corp
- What technology area does this patent fall under?
- Primary CPC classification B25J9/0051. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 2026 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).