IMPACT ROTARY TOOL

• Main Authors: UEDA TAKAHIRO, KUSAKAWA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 10.02.2022
• Subjects: HAND TOOLS; MANIPULATORS; PERFORMING OPERATIONS; PORTABLE POWER-DRIVEN TOOLS; TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING; TRANSPORTING

To reduce tool dimensions in an axial direction of a drive shaft.SOLUTION: An impact rotary tool 1 includes: a drive shaft 4, a speed reduction mechanism 5, an output shaft 13, a hammer 11, a spring part 12 and a bearing part 6. The speed reduction mechanism 5 transmits rotational force of a shaft of a motor 31 to the drive shaft 4. The output shaft 13 outputs the rotation exerted from the drive shaft 4 and transmits the rotation to a tip tool B1. The hammer 11 strikes the output shaft 13 while being supported by the drive shaft 4 so as to be rotatable. The spring part 12 urges the hammer 11 toward a side of the output shaft 13. The bearing part 6 bears the drive shaft 4 so as to be rotatable. The bearing part 6 is disposed on the side of the output shaft 13 as compared to the speed reduction mechanism 5 in an axial direction A1 of the drive shaft 4.SELECTED DRAWING: Figure 1 【課題】駆動軸の軸方向における工具寸法の縮小を図ること。【解決手段】インパクト回転工具１は、駆動軸４と、減速機構５と、出力軸１３と、ハンマ１１と、ばね部１２と、軸受け部６と、を備える。減速機構５は、モータ３１の軸の回転力を駆動軸４に伝達する。出力軸１３は、駆動軸４の回転が出力されて、先端工具Ｂ１に伝達する。ハンマ１１は、駆動軸４により回転可能に支持されて、出力軸１３を打撃する。ばね部１２は、ハンマ１１を出力軸１３の側に向けて付勢する。軸受け部６は、駆動軸４を回転可能に支持する。軸受け部６は、駆動軸４の軸方向Ａ１において、減速機構５よりも出力軸１３の側に配置される。【選択図】図１