Patent ID: 11872646
Assignee: MAKITA CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. A reciprocating tool comprising:
a housing;
a first tubular member supported by the housing to be pivotable around a first axis between a first position and a second position, the first axis defining a front-rear direction of the reciprocating tool, and the first tubular member including a manipulation part configured to be manipulated from outside the housing and a first protrusion protruding radially inward from an inner peripheral surface of the first tubular member;
an elongate slider having a second axis and supported within the housing to be reciprocated at least substantially in the front-rear direction along the second axis, the slider having a first end portion configured to removably receive a blade;
a second tubular member disposed radially inward of the first tubular member and coupled to the first end portion of the slider to be pivotable around the second axis between an engagement position and a disengagement position, the second tubular member having a second protrusion protruding radially outward from an outer peripheral surface of the second tubular member; and
a lock member disposed radially inward of the second tubular member and configured to move in a radial direction of the second tubular member between a lock position at which the lock member is engageable with the blade and an unlock position at which the lock member is non-engageable with the blade, in response to pivoting of the second tubular member between the engagement position and the disengagement position,
wherein:
the second tubular member has a cam part extending partially along a periphery of the second tubular member in a circumferential direction around the second axis and protruding radially outward of a remaining portion of the second tubular member, the cam part being configured to provide space in the radial direction for the lock member to move to the unlock position,
the cam part has an inner peripheral surface that contacts a head portion of the lock member and is configured to move the lock member from the unlock position to the lock position as the second tubular member is pivoted from the disengagement position to the engagement position,
the first protrusion is configured to engage with the second protrusion and cause the second tubular member to pivot from the engagement position to the disengagement position while the first tubular member pivoting from the first position to the second position in response to manipulation of the manipulation part,
the first protrusion is configured to allow the second tubular member to pivot without engaging with the second protrusion when the first tubular member is at the first position,
the second protrusion is provided on a portion of the second tubular member other than the cam part, and
the elongate slider is configured to impart an orbital motion to the blade by oscillating in an up-down direction orthogonal to the first axis while reciprocating at least substantially in the front-rear direction along the second axis.