Title:
POWER TOOL
Document Type and Number:
WIPO Patent Application WO/2023/103646
Kind Code:
A1
Abstract:
A power tool, comprising a transmission mechanism (14, 22) and provided with transmission gears that enable an output shaft (132, 27) to output at different rotating speeds. The number of the transmission gears is greater than or equal to 3. The transmission mechanism (14, 22) comprises multiple stages of planetary gear sets. Each stage of planetary gear set comprises one layer of planetary gear in the axial direction. The total number of the planetary gear sets is less than or equal to that of the transmission gears. A first stage of planetary gear set (144), in the multiple stages of planetary gear sets, closest to a motor shaft (121, 231) comprises a first transmission state and a first speed change state. Any stage of one of the remaining planetary gear sets is connected to a clutch mechanism (15).
Inventors:
LI CHUNRUI (CN)
TONG SHUBIN (CN)
ZHENG HANQING (CN)
TONG SHUBIN (CN)
ZHENG HANQING (CN)
Application Number:
PCT/CN2022/128557
Publication Date:
June 15, 2023
Filing Date:
October 31, 2022
Export Citation:
Assignee:
NANJING CHERVON IND CO LTD (CN)
International Classes:
B25D11/00
Foreign References:
| CN1370661A | 2002-09-25 | |||
| CN205703930U | 2016-11-23 | |||
| CN109834657A | 2019-06-04 | |||
| CN202192605U | 2012-04-18 | |||
| JP2013000847A | 2013-01-07 | |||
| US20190301571A1 | 2019-10-03 | |||
| JPH01137226A | 1989-05-30 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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