ELECTRIC TOOL

• Main Authors: SEKO SHINJI, SHIMIZU HIDEKI, KUSAKAWA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 23.10.2023
• Subjects: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR; HAND TOOLS; MANIPULATORS; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING

To provide an electric tool with the high durability of a seal member.SOLUTION: An electric tool 1 is equipped with an output shaft 2, a drive shaft 3, a transmission mechanism 4, a plurality of bearings 5, and a seal member 6. The output shaft 2 has a holding part 21 that holds a tip end tool B1. The drive shaft 3 is rotated by a driving part. The transmission mechanism 4 is provided between the drive shaft 3 and the output shaft 2, and transmits rotations of the drive shaft 3 to the output shaft 2. The plurality of bearings 5 are disposed so as to align in an axial direction D1 of the output shaft 2, and rotatably supports the output shaft 2. The seal member 6 has a through-hole 61 penetrated by the output shaft 2. The seal member 6 is provided so that an inner peripheral surface 610 of the through-hole 61 contacts with an outer peripheral surface 20 of the output shaft 2 in at least one of spaces sandwiched by the adjacent two bearings 5 of the plurality of bearings 5.SELECTED DRAWING: Figure 1 【課題】シール部材の耐久性が高い電動工具を提供すること。【解決手段】電動工具１は、出力軸２と、駆動軸３と、伝達機構４と、複数の軸受け５と、シール部材６と、を備える。出力軸２は、先端工具Ｂ１を保持する保持部２１を有する。駆動軸３は、駆動部により回転する。伝達機構４は、駆動軸３と出力軸２との間に設けられ、駆動軸３の回転を出力軸２に伝達する。複数の軸受け５は、出力軸２の軸方向Ｄ１に並んで配置され、出力軸２を回転可能に支持する。シール部材６は、出力軸２が挿通する貫通孔６１を有する。シール部材６は、複数の軸受け５のうち隣接する２つの軸受け５に挟まれた空間の少なくとも１つにおいて、貫通孔６１の内周面６１０が出力軸２の外周面２０と接するように設けられる。【選択図】図１