US 12,305,683 B2
Connecting structure between power tool and attachment
Fumitoshi Numata, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Filed by MAKITA CORPORATION, Anjo (JP)
Filed on Jul. 8, 2021, as Appl. No. 17/370,671.
Claims priority of application No. 2020-128898 (JP), filed on Jul. 30, 2020.
Prior Publication US 2022/0032439 A1, Feb. 3, 2022
Int. Cl. F16B 21/07 (2006.01); B25F 5/00 (2006.01); F16B 21/04 (2006.01)
CPC F16B 21/073 (2013.01) [F16B 21/04 (2013.01); B25F 5/00 (2013.01); Y10T 403/7007 (2015.01)] 18 Claims
OG exemplary drawing
 
1. A connecting structure between a power tool and an attachment, the connecting structure comprising:
a lock mechanism configured to be actuated when the attachment is moved in a first direction relative to the power tool in response to an attaching operation being performed on the attachment by a user and to lock the attachment in an attachment position to be immovable in a second direction opposite to the first direction when the attachment is placed in the attachment position relative to the power tool, wherein
the attachment has a first engagement part,
the lock mechanism includes a fixed member fixed to the power tool,
the fixed member includes a second engagement part configured to prevent movement of the attachment in the second direction by engaging with the first engagement part,
the attaching operation is performed by only moving the attachment linearly in the first direction toward the power tool,
the first engagement part elastically deforms when the attachment is moved in the first direction, and engages with the second engagement part when the first engagement part is restored from an elastic deformation, and
the lock mechanism is configured to perform an unlocking operation that releases lock of the attachment in response to a turning of the attachment around a first axis by the user without the elastic deformation of the first engagement part.