US 11,865,689 B2
Impact rotary tool
Takashi Kusagawa, Osaka (JP); Takahiro Ueda, Osaka (JP); Akiko Honda, Osaka (JP); and Kimitaka Ozawa, Osaka (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Aug. 4, 2022, as Appl. No. 17/881,290.
Claims priority of application No. 2021-130533 (JP), filed on Aug. 10, 2021.
Prior Publication US 2023/0051397 A1, Feb. 16, 2023
Int. Cl. B25F 5/00 (2006.01); B25B 21/02 (2006.01)
CPC B25F 5/006 (2013.01) [B25B 21/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An impact rotary tool comprising: a hammer; and an anvil configured to transmit rotational impact force from the hammer to a tip tool,
the anvil including:
a first member configured to hold the tip tool thereon; and
a second member to which the first member is fitted and to which the rotational impact force is applied, wherein:
the first member and the second member are arranged to be fitted into each other in a fitting portion,
the fitting portion has a tolerating mechanism configured to tolerate misalignment of a first rotational axis with a second rotational axis, the first rotational axis being a rotational axis of the first member, the second rotational axis being a rotational axis of the second member,
the fitting portion includes:
a first fitting portion forming part of the first member and fitted into the second member, the first fitting portion having a first surface as one surface thereof; and
a second fitting portion forming part of the second member and fitted into the first member, the second fitting portion having a second surface as one surface thereof,
the first surface and the second surface face each other, and
the tolerating mechanism tolerates the misalignment of the first rotational axis with the second rotational axis in a state in which a portion of the first surface and a portion of the second surface are in contact with each other in a direction about the second rotational axis.