WO2023084251 - AN ACTUATOR ASSEMBLY
National phase entry:
Publication Number
WO/2023/084251
Publication Date
19.05.2023
International Application No.
PCT/GB2022/052893
International Filing Date
15.11.2022
Title **
[English]
AN ACTUATOR ASSEMBLY
[French]
ENSEMBLE ACTIONNEUR
Applicants **
CAMBRIDGE MECHATRONICS LIMITED
Unit 18, Block 5, The Westbrook Centre
Milton Road
Cambridge Cambridgeshire CB4 1YG, GB
Inventors
BROWN, Andrew Benjamin Simpson
c/o Cambridge Mechatronics Limited
The Westbrook Centre, Building 6, Milton Road
Cambridge Cambridgeshire CB4 1YG, GB
HOWARTH, James
c/o Cambridge Mechatronics Limited
The Westbrook Centre, Building 6, Milton Road
Cambridge Cambridgeshire CB4 1YG, GB
EDDINGTON, Robin
c/o Cambridge Mechatronics Limited
The Westbrook Centre, Building 6, Milton Road
Cambridge Cambridgeshire CB4 1YG, GB
BUNTING, Stephen Matthew
c/o Cambridge Mechatronics Limited
The Westbrook Centre, Building 6, Milton Road
Cambridge Cambridgeshire CB4 1YG, GB
HART, Oliver
c/o Cambridge Mechatronics Limited
The Westbrook Centre, Building 6, Milton Road
Cambridge Cambridgeshire CB4 1YG, GB
Priority Data
2116400.9
15.11.2021
GB
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| * | |
International Searching Authority |
EPO
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Translation |
|
Recalculate
* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1637 | |
| EPO | Filing, Examination | 10128 | |
| Japan | Filing | 594 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 4910 |
Total: 17844 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
An actuator assembly (1) comprising: a support structure (10) comprising a first friction surface (10f); a movable part (20) comprising a second friction surface (20f) engaging the first friction surface; one or more SMA wires (40) arranged, on contraction, to move the movable part relative to the support structure to any position within a range of movement; a biasing arrangement (30) arranged to bias the first and second friction surfaces against each other with a normal force, thereby generating a static frictional force that constrains the movement of the movable part relative to the support structure at any position within the range of movement when the one or more SMA wires are not contracted, wherein the one or more SMA wires are arranged such that the normal force between the first and second friction surfaces remains substantially constant on contraction of the one or more SMA wires.[French]
Ensemble actionneur (1) comprenant : une structure de support (10) comprenant une première surface de frottement (10f) ; une partie mobile (20) comprenant une seconde surface de frottement (20f) venant en prise avec la première surface de frottement ; un ou plusieurs fils en alliage à mémoire de forme (SMA) (40) conçus, lors de la contraction, pour déplacer la partie mobile par rapport à la structure de support vers une position quelconque au sein d'une plage de mouvement ; un agencement de sollicitation (30) conçu pour solliciter les première et seconde surfaces de frottement l'une contre l'autre avec une force normale, ce qui permet de générer une force de frottement statique qui contraint le mouvement de la partie mobile par rapport à la structure de support à une position quelconque au sein de la plage de mouvement lorsque le ou les fils SMA ne sont pas contractés, le ou les fils SMA étant conçus de telle sorte que la force normale entre les première et seconde surfaces de frottement reste sensiblement constante lors de la contraction du ou des fils SMA.