ELECTRIC TOOL

WIPO Patent Application WO/2020/135184

A1

An electric tool, comprising: a striking shaft (11) comprising a striking end (1111) capable of reciprocating in a first axis (200) and capable of striking a nail (100) during movement, a striking surface (1123) contacting the nail (100) being formed on the striking end (1111); an impact mechanism (10) for impacting the striking shaft (11) to reciprocate; a motor (21) for driving the impact mechanism (10); and a housing (50) for supporting the striking shaft (11), the impact mechanism (10) and the motor (21); the impact mechanism (10) comprises an impact block (12) on which an impact surface (1122) for contacting the striking shaft (11) so as to output an impact force to the striking shaft (11) is formed, and a support shaft (70) for supporting the impact block (12); a force receiving surface for contacting the impact surface (1122) to receive an impact force outputted by the impact block (12) is formed on the striking shaft (11); and when the impact surface (1122) contacts the force receiving surface to perform impacting, the ratio of the area of the surface of the force receiving surface that contacts the impact surface (1122) to the area of the striking surface (1123) is equal to or greater than 0.5 and equal to or less than 20.

JP2005529763	Nail gun
JP2002526274	[Title of Invention] Multi-stroke fixing device

ZHU RONGGEN (CN)
FU XIANGQING (CN)

PCT/CN2019/126337

July 02, 2020

December 18, 2019

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NANJING CHERVON IND CO LTD (CN)

B25C1/06; B25D11/06

CN201848826U	2011-06-01
CN201848826U	2011-06-01
CN104334317A	2015-02-04
CN104227659A	2014-12-24
CN201841525U	2011-05-25
CN102729216A	2012-10-17
US9539714B1	2017-01-10

BEYOND ATTORNEYS AT LAW (CN)

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