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1. WO2020064528 - ACTUATOR FOR A BRAKE ELEMENT

Publication Number WO/2020/064528
Publication Date 02.04.2020
International Application No. PCT/EP2019/075287
International Filing Date 20.09.2019
IPC
B27B 5/38 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
5Sawing machines working with circular saw blades; Components or equipment therefor
29Details; Component parts; Accessories
38Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
B23Q 11/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
11Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B25F 5/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
5Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B27G 19/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
19Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
02for circular saws
04for manually-operated power-driven circular saws
F16P 3/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
PSAFETY DEVICES IN GENERAL
3Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
12with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
CPC
B23Q 11/0092
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
11Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work
0078Safety devices protecting the operator, e.g. against accident or noise
0092actuating braking or stopping means
B25F 5/00
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
5Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B27B 5/38
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
5Sawing machines working with circular ; or cylindrical; saw blades
29Details; Component parts; Accessories
38Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
B27G 19/04
BPERFORMING OPERATIONS; TRANSPORTING
27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS
19Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
02for circular saws
04for manually-operated power-driven circular saws
F16P 3/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
PSAFETY DEVICES IN GENERAL; ; SAFETY DEVICES FOR PRESSES
3Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
12with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • DENNIS, Daniel
  • ESENWEIN, Florian
Priority Data
10 2018 216 552.127.09.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) AKTORIK FÜR EIN BREMSELEMENT
(EN) ACTUATOR FOR A BRAKE ELEMENT
(FR) SYSTÈME D'ACTIONNEMENT POUR UN ÉLÉMENT DE FREINAGE
Abstract
(DE)
Die Erfindung betrifft eine Sicherheitsbremsvorrichtung (30) zum Bremsen eines Sägeblatts (22) einer Handkreissäge (10), mit einem ersten Bremselement (32), wobei das erste Bremselement (32) drehfest auf einer Bearbeitungswelle (20) einer Handkreissäge (10) angeordnet ist und mit einem zweiten Bremselement (34), wobei das zweite Bremselement (34) drehfest an einem Gehäuse (12) der Handkreissäge (10) angeordnet ist. Es wird vorgeschlagen, dass ein Aktorelement (60) die Sicherheitsbremsvorrichtung (30) auslöst, sobald eine Annäherung menschlicher Haut oder eine Berührung des Sägeblatts (22) mit menschlicher Haut erkannt wird.
(EN)
The invention relates to a safety brake device (30) for braking a saw blade (22) of a hand-held circular saw (10), comprising a first brake element (32), said first brake element (32) being rotationally fixed to a machining shaft (20) of a hand-held circular saw (10), and a second brake element (34), said second brake element (34) being rotationally fixed to a housing (12) of the hand-held circular saw (10). An actuator element (60) triggers the safety brake device (30) as soon as the proximity of human skin or a contact between the saw blade (22) and the human hand is detected.
(FR)
L'invention concerne un dispositif de freinage de sécurité (30) pour freiner une lame (22) d'une scie circulaire portative (10), comprenant un premier élément de freinage (32), le premier élément de freinage (32) étant monté solidaire en rotation sur un arbre d'usinage (20) de la scie circulaire portative (10), et un deuxième élément de freinage (34), le deuxième élément de freinage (34) étant bloqué en rotation sur un boîtier (12) de la scie circulaire portative (10). Selon l'invention, un élément actionneur (60) déclenche le dispositif de freinage de sécurité (30) dès la détection du fait que la peau humaine s’approche de la lame de scie (22) ou que cette dernière entre en contact avec la peau humaine.
Also published as
Latest bibliographic data on file with the International Bureau