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公开(公告)号:US11999045B2
公开(公告)日:2024-06-04
申请号:US17601961
申请日:2020-04-13
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: A work tool includes a housing, a spindle, a motor a transmitting mechanism, and a heat dissipation part. The transmitting mechanism is configured to transmit rotation of a first shaft of the motor to the spindle to cause the spindle to rotary oscillate. The transmitting mechanism includes a metal second shaft coupled to the first shaft and having an eccentric part, a drive bearing including an inner ring fixed around the eccentric part, an outer ring, a plastic retainer arranged between the inner ring and the outer ring, and rolling elements rollably retained by the retainer, and an oscillating member having a first end portion fixed to the spindle and a second end portion abutting on an outer periphery of the outer ring. The heat dissipation part is made of metal, arranged in contact with the second shaft and configured to rotate integrally with the second shaft.
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公开(公告)号:US10576605B2
公开(公告)日:2020-03-03
申请号:US16298033
申请日:2019-03-11
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: It is an object of the invention to increase the degree of freedom in designing a power tool. A representative power tool has a spindle that transmits a driving force of a motor to a tool accessory, a tool accessory holding member that is configured to be movable in a direction of a spindle rotation axis direction between a holding position for holding the tool accessory and a releasing position for releasing the tool accessory, a lock mechanism that locks the tool accessory holding member in the holding position, and a body housing. The lock mechanism is disposed between a second end of the spindle and a wall of the body housing in the spindle rotation axis direction.
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公开(公告)号:US11478917B2
公开(公告)日:2022-10-25
申请号:US16847722
申请日:2020-04-14
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: It is an object of the invention to provide a more rational vibration reducing technique for a work tool. A representative work tool 100 has an outer housing 102, an inner housing 104, a brushless motor 115, a spindle 124 having a rotation axis extending in parallel to a rotation output shaft of the brushless motor 115 and configured to be rotated on the rotation axis within a prescribed angular range to drive a tool accessory 145, a front elastic member 110a disposed between a front inner housing region 104a and a front outer housing region 102a, and a rear elastic member 110c disposed between at least one of an intermediate inner housing region 104b and a rear inner housing region 104c and at least one of an intermediate outer housing region 102b and a rear outer housing region 102c.
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公开(公告)号:US10661426B2
公开(公告)日:2020-05-26
申请号:US15435366
申请日:2017-02-17
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: It is an object of the invention to provide a more rational vibration reducing technique for a work tool. A representative work tool 100 has an outer housing 102, an inner housing 104, a brushless motor 115, a spindle 124 having a rotation axis extending in parallel to a rotation output shaft of the brushless motor 115 and configured to be rotated on the rotation axis within a prescribed angular range to drive a tool accessory 145, a front elastic member 110a disposed between a front inner housing region 104a and a front outer housing region 102a, and a rear elastic member 110c disposed between at least one of an intermediate inner housing region 104b and a rear inner housing region 104c and at least one of an intermediate outer housing region 102b and a rear outer housing region 102c.
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公开(公告)号:US10569406B2
公开(公告)日:2020-02-25
申请号:US15435400
申请日:2017-02-17
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: It is an object of the invention to provide an ergonomically excellent work tool while maintaining high manufacturing efficiency. A representative work tool is provided which performs a prescribed operation on a workpiece by driving a tool accessory. The work tool has an inner housing that houses a motor and a spindle, an outer housing and an elastic member. A first inner housing element and a second inner housing element are assembled while being opposed to each other in a transverse direction, and a first outer housing element and a second outer housing element are assembled while being opposed to each other in a vertical direction.
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公开(公告)号:US10307904B2
公开(公告)日:2019-06-04
申请号:US15012015
申请日:2016-02-01
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: It is an object of the invention to provide a technique for increasing the degree of freedom in designing a grip part in order to improve operability of a power tool. A representative electric vibration tool 100 is provided which mainly includes a body housing 101, an inner housing 110, a driving motor 115 and a spindle 124. A blade 145 as a tool accessory is held between the spindle 124 and a clamp shaft 127 and driven by the driving motor 115. The driving motor 115 and the spindle 124 are housed within the inner housing 110. The inner housing 110 is housed within a front region of the body housing 101. A grip part 107 is arranged behind the front region of the body housing 101.
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公开(公告)号:US10286519B2
公开(公告)日:2019-05-14
申请号:US15237093
申请日:2016-08-15
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: It is an object of the invention to increase the degree of freedom in designing a power tool. A representative power tool 100 has a spindle 124 that transmits a driving force of a motor 115 to a tool accessory 145, a tool accessory holding member 127 that is configured to be movable in a direction of a spindle rotation axis direction 124a between a holding position for holding the tool accessory 145 and a releasing position for releasing the tool accessory 145, a lock mechanism 130 that locks the tool accessory holding member 127 in the holding position, and a body housing 101. The lock mechanism 130 is disposed between a second end 1241 of the spindle 124 and a wall of the body housing 101 in the spindle rotation axis direction 124a.
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公开(公告)号:US11590593B2
公开(公告)日:2023-02-28
申请号:US16953796
申请日:2020-11-20
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: A power tool includes a spindle, a motor, an inner housing and an outer housing elastically connected to the inner housing. The inner housing is formed by a first inner housing portion formed of metal connected to a second inner housing portion formed of synthetic polymer. The first inner housing portion includes a housing part disposed in a front part of the outer housing, and a first extending part extending rearward from the housing part and disposed in a grip part of the outer housing. The second inner housing portion includes a second extending part that has a tubular shape and at least partially surrounds the first extending part, and a rear end part connected to the second extending part and disposed in a rear part of the outer housing. The first extending part extends rearward of a center of the second extending part in the front-rear direction.
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公开(公告)号:US11491604B2
公开(公告)日:2022-11-08
申请号:US17135428
申请日:2020-12-28
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
摘要: A work tool includes a spindle and a clamp shaft. The spindle is supported to be rotatable around a driving axis defining an up-down direction of the work tool. The clamp shaft includes a shaft part and a fixing part. The shaft part extends coaxially with the spindle. The fixing part is coupled to the shaft part on a lower side of the spindle. The clamp shaft is supported to be movable in the up-down direction relative to the spindle. The clamp shaft is configured to be biased upward and to fix the tool accessory to a lower end portion of the spindle by the fixing par. The fixing part is configured to be removable from the shaft part and to be integrally coupled to the shaft part only by moving upward relative to the shaft part.
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公开(公告)号:US11364545B2
公开(公告)日:2022-06-21
申请号:US17122500
申请日:2020-12-15
申请人: MAKITA CORPORATION
发明人: Yonosuke Aoki
IPC分类号: B23B31/10 , B27B5/30 , B27B19/00 , B24B45/00 , B23B31/18 , B23B31/103 , B24B23/04 , B23D61/00
摘要: A power tool includes a housing (10), a spindle (4) supported in the housing to be pivotable or rotatable about a driving axis, a clamping shaft (60) that is selectively movable in the up-down direction relative to the spindle, a biasing member (70), a release member (71) and an actuating member (50). The release member is selectively movable in the up-down direction relative to the spindle and is configured to selectively interrupt transmission of upward biasing force from the biasing member to the clamping shaft. The release member is also configured to be locked to the spindle in a locked position while transmission of the biasing force is being interrupted. The actuating member is movable upward in the up-down direction relative to the spindle in response to being pressed upward by a clamping part (64) or by a tool accessory (91) to thereby unlock the release member from the spindle.
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