EP 4377038 A1 20240605 - ROTATING OR OSCILLATING TOOL PROVIDED WITH METAMATERIALS FOR REDUCING SOUND EMISSION AND VIBRATIONS
Title (en)
ROTATING OR OSCILLATING TOOL PROVIDED WITH METAMATERIALS FOR REDUCING SOUND EMISSION AND VIBRATIONS
Title (de)
ROTIERENDES ODER OSZILLIERENDES WERKZEUG VERSEHEN MIT METAMATERIALIEN ZUR REDUKTION VON SCHALLABSTRAHLUNG UND VIBRATIONEN
Title (fr)
OUTIL ROTATIF OU OSCILLANT COMPRENANT DES MÉTAMATÉRIAUX POUR RÉDUIRE LES ÉMISSIONS SONORES ET LES VIBRATIONS
Publication
Application
Priority
- DE 102021208300 A 20210730
- EP 2022071293 W 20220728
Abstract (en)
[origin: WO2023006931A1] Tool comprising a first tool part (1, 14, 15, 16), which is designed to rotate, to oscillate or to perform some other periodic movement, and a second tool part (18, 20, 21, 23), which is designed for securing or guiding the first tool part and does not move with the first tool part, wherein the tool is provided with an arrangement of local resonators (2), which each comprise at least one oscillating mass (3) and one spring element (4), which connects the oscillatory mass (3) to the tool, and are tuned to having at least one resonance in a relevant, frequency range around a first relevant frequency, wherein the arrangement of the local resonators (2) creates at least one stopband for elastic wave propagation in the tool around at least the first relevant frequency.
IPC 8 full level
B23D 61/02 (2006.01); B23D 61/12 (2006.01)
CPC (source: EP)
B23D 61/025 (2013.01); B23D 61/123 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021208300 A1 20230202; EP 4377038 A1 20240605; JP 2024528093 A 20240726; WO 2023006931 A1 20230202
DOCDB simple family (application)
DE 102021208300 A 20210730; EP 2022071293 W 20220728; EP 22761072 A 20220728; JP 2024505398 A 20220728