WO2025254576 - BATTERY-POWERED CHAINSAW COMPRISING A BRAKE ASSEMBLY WITH A BRAKE STATE INDICATOR
National phase entry is expected:
Publication Number
WO/2025/254576
Publication Date
11.12.2025
International Application No.
PCT/SE2025/050334
International Filing Date
09.04.2025
Title **
[English]
BATTERY-POWERED CHAINSAW COMPRISING A BRAKE ASSEMBLY WITH A BRAKE STATE INDICATOR
[French]
SCIE À CHAÎNE ALIMENTÉE PAR BATTERIE COMPRENANT UN ENSEMBLE FREIN DOTÉ D'UN INDICATEUR D'ÉTAT DE FREIN
Applicants **
HUSQVARNA AB
Inventors
PETTERSSON, Marcus
BERGQUIST, Oskar
Priority Data
2450590-1
03.06.2024
SE
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 | * |
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| Number of Office Actions | * |
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International Searching Authority |
SPRO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
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* 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, Examination, Granting | 1965 | |
| EPO | Filing, Examination, Granting | 9209 | |
| Japan | Filing, Examination, Granting | 2108 | |
| South Korea | Filing, Examination, Granting | 1984 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
20,006
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Abstract[English]
A battery-powered chainsaw comprises a hand guard (32) mechanically coupled to a brake assembly via a brake operation mechanism. The hand guard (32) is movable between a brake engagement position, in which the hand guard (32) brings the brake assembly (53) to an engaged state, a brake release position, in which the hand guard (32) brings the brake assembly (53) to a disengaged state, and a neutral position, between the brake engagement and brake release positions, in which the hand guard (32) does not change the state of the brake assembly (53). A brake state detector arrangement (64) detects when the hand guard (32) brings the brake assembly (53) to the engaged state and when the hand guard (32) brings the brake assembly (53) to the disengaged state. A brake state indicator (66) maintains the latest brake state when the hand guard (32) is in the neutral position, and indicates the maintained latest brake state to the control circuitry (30).[French]
Une scie à chaîne alimentée par batterie comprend un protège-main (32) accouplé mécaniquement à un ensemble frein par l'intermédiaire d'un mécanisme d'actionnement de frein. Le protège-main (32) est mobile entre une position de mise en prise de frein, dans laquelle le protège-main (32) amène l'ensemble frein (53) à un état en prise, une position de libération de frein, dans laquelle le protège-main (32) amène l'ensemble frein (53) à un état désengagé, et une position neutre, entre les positions de mise en prise de frein et de libération de frein, dans laquelle le protège-main (32) ne change pas l'état de l'ensemble frein (53). Un agencement de détecteur d'état de frein (64) détecte lorsque le protège-main (32) amène l'ensemble frein (53) à l'état en prise et lorsque le protège-main (32) amène l'ensemble frein (53) à l'état désengagé. Un indicateur d'état de frein (66) maintient le dernier état de frein lorsque le protège-main (32) est dans la position neutre, et indique le dernier état de frein maintenu à l'ensemble de circuits de commande (30).