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1. 发明授权

US06520059B1 Bevel locking system for a sliding compound miter saw 失效
标题翻译：用于滑动复合斜切锯的斜角锁定系统
公开(公告)号：US06520059B1
公开(公告)日：2003-02-18
申请号：US09481670
申请日：2000-01-12
申请人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
发明人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
IPC分类号： B27B529
CPC分类号： B23Q1/28 , B23D45/048 , B23D47/02 , B27B5/29 , Y10T83/7697 , Y10T83/7705 , Y10T83/7726 , Y10T83/7788 , Y10T83/8749 , Y10T83/8772 , Y10T83/8773 , Y10T83/9387
摘要： A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saws unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit. The first fixed stop member is disposed so that the rod abuts the first fixed stop member when the miter saw unit is at the vertical position. Similarly, the second fixed stop member is disposed so that the rod abuts the second fixed stop member when the miter saw unit is leftwardly pivoted at a first predetermined angle from the vertical position. Further, the third fixed stop member is disposed so that the rod abuts the third fixed stop member when the miter saw unit is rightwardly pivoted at a second predetermined angle from the vertical position.
摘要翻译：复合斜切锯包括其上放置有工件的工作台，支撑锯片的斜切锯单元和以与斜台相关的斜切锯单元枢转地支撑的壳体，使得斜切锯单元至少可横向枢转。此外，斜切锯包括斜面机构，用于选择性地确定斜切锯单元在多个枢转位置中的任一个处的横向位置，包括垂直位置，其中锯片相对于工作台基本垂直地定位，以及向左和向右枢转位置，其中叶片从垂直位置横向向左和向右横向倾斜。所述斜面机构包括可动杆和三个固定止动构件，所述杆可操作以在抵靠所述固定止动构件中的一个的第一杆位置与不邻接所述固定止动构件之一之间的第二杆位置之间移动，斜切锯单元的侧向枢转运动。第一固定止动构件设置成当斜切锯单元处于垂直位置时，杆抵靠第一固定止动构件。类似地，第二固定止动构件设置成当斜切单元从垂直位置以第一预定角度向左枢转时，杆抵靠第二固定止动构件。此外，第三固定止动构件设置成当斜切单元从垂直位置以第二预定角度向右枢转时，杆抵靠第三固定止动构件。

2. 发明授权

US07210385B2 Bevel locking system for a sliding compound miter saw 有权
标题翻译：用于滑动复合斜切锯的斜角锁定系统
公开(公告)号：US07210385B2
公开(公告)日：2007-05-01
申请号：US11274464
申请日：2005-11-15
申请人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
发明人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
IPC分类号： B26D1/14
CPC分类号： B23Q1/28 , B23D45/048 , B23D47/02 , B27B5/29 , Y10T83/7697 , Y10T83/7705 , Y10T83/7726 , Y10T83/7788 , Y10T83/8749 , Y10T83/8772 , Y10T83/8773 , Y10T83/9387
摘要： A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saw unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit. The first fixed stop member is disposed so that the rod abuts the first fixed stop member when the miter saw unit is at the vertical position. Similarly, the second fixed stop member is disposed so that the rod abuts the second fixed stop member when the miter saw unit is leftwardly pivoted at a first predetermined angle from the vertical position. Further, the third fixed stop member is disposed so that the rod abuts the third fixed stop member when the miter saw unit is rightwardly pivoted at a second predetermined angle from the vertical position.
摘要翻译：复合斜切锯包括其上放置有工件的工作台，支撑锯片的斜切锯单元和以与斜面相关的斜切锯单元枢转地支撑的壳体，使得斜切锯单元至少可横向枢转。此外，斜切锯包括斜面机构，用于选择性地确定斜切锯单元在多个枢转位置中的任一个处的横向位置，包括垂直位置，其中锯片相对于工作台基本垂直地定位，以及向左和向右枢转位置，其中叶片从垂直位置横向向左和向右横向倾斜。所述斜面机构包括可动杆和三个固定止动构件，所述杆可操作以在抵靠所述固定止动构件中的一个的第一杆位置与不邻接所述固定止动构件之一之间的第二杆位置之间移动，斜切锯单元的侧向枢转运动。第一固定止动构件设置成当斜切锯单元处于垂直位置时，杆抵靠第一固定止动构件。类似地，第二固定止动构件设置成当斜切单元从垂直位置以第一预定角度向左枢转时，杆抵靠第二固定止动构件。此外，第三固定止动构件设置成当斜切单元从垂直位置以第二预定角度向右枢转时，杆抵靠第三固定止动构件。

3. 发明授权

US6035754A Bevel locking system for a sliding compound miter saw 有权
公开(公告)号：US6035754A
公开(公告)日：2000-03-14
申请号：US243827
申请日：1999-02-03
申请人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
发明人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
IPC分类号： B23D45/04 , B23D47/02 , B23Q1/28 , B27B5/29 , B23D45/14 , B27B5/20
CPC分类号： B23Q1/28 , B23D45/048 , B23D47/02 , B27B5/29 , Y10T83/7697 , Y10T83/7705 , Y10T83/7726 , Y10T83/7788 , Y10T83/8749 , Y10T83/8772 , Y10T83/8773 , Y10T83/9387
摘要： A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saw unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit. The first fixed stop member is disposed so that the rod abuts the first fixed stop member when the miter saw unit is at the vertical position. Similarly, the second fixed stop member is disposed so that the rod abuts the second fixed stop member when the miter saw unit is leftwardly pivoted at a first predetermined angle from the vertical position. Further, the third fixed stop member is disposed so that the rod abuts the third fixed stop member when the miter saw unit is rightwardly pivoted at a second predetermined angle from the vertical position.

4. 发明授权

US5907987A Bevel locking system for a sliding compound miter saw 失效
公开(公告)号：US5907987A
公开(公告)日：1999-06-01
申请号：US798896
申请日：1997-02-11
申请人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
发明人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
IPC分类号： B23D45/04 , B23D47/02 , B23Q1/28 , B27B5/29 , B23D45/14 , B27B5/20
CPC分类号： B23Q1/28 , B23D45/048 , B23D47/02 , B27B5/29 , Y10T83/7697 , Y10T83/7705 , Y10T83/7726 , Y10T83/7788 , Y10T83/8749 , Y10T83/8772 , Y10T83/8773 , Y10T83/9387
摘要： A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saw unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit. The first fixed stop member is disposed so that the rod abuts the first fixed stop member when the miter saw unit is at the vertical position. Similarly, the second fixed stop member is disposed so that the rod abuts the second fixed stop member when the miter saw unit is leftwardly pivoted at a first predetermined angle from the vertical position. Further, the third fixed stop member is disposed so that the rod abuts the third fixed stop member when the miter saw unit is rightwardly pivoted at a second predetermined angle from the vertical position.

5. 发明授权

US06990883B2 Bevel locking system for a sliding compound miter saw 失效
公开(公告)号：US06990883B2
公开(公告)日：2006-01-31
申请号：US10964339
申请日：2004-10-13
申请人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
发明人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
IPC分类号： B26D16/00
CPC分类号： B23Q1/28 , B23D45/048 , B23D47/02 , B27B5/29 , Y10T83/7697 , Y10T83/7705 , Y10T83/7726 , Y10T83/7788 , Y10T83/8749 , Y10T83/8772 , Y10T83/8773 , Y10T83/9387
摘要： A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saw unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit. The first fixed stop member is disposed so that the rod abuts the first fixed stop member when the miter saw unit is at the vertical position. Similarly, the second fixed stop member is disposed so that the rod abuts the second fixed stop member when the miter saw unit is leftwardly pivoted at a first predetermined angle from the vertical position. Further, the third fixed stop member is disposed so that the rod abuts the third fixed stop member when the miter saw unit is rightwardly pivoted at a second predetermined angle from the vertical position.

6. 发明授权

US06823765B2 Bevel locking system for a sliding compound miter saw 失效
标题翻译：用于滑动复合斜切锯的斜角锁定系统
公开(公告)号：US06823765B2
公开(公告)日：2004-11-30
申请号：US10302687
申请日：2002-11-22
申请人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
发明人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
IPC分类号： B27D529
CPC分类号： B23Q1/28 , B23D45/048 , B23D47/02 , B27B5/29 , Y10T83/7697 , Y10T83/7705 , Y10T83/7726 , Y10T83/7788 , Y10T83/8749 , Y10T83/8772 , Y10T83/8773 , Y10T83/9387
摘要： A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saw unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit. The first fixed stop member is disposed so that the rod abuts the first fixed stop member when the miter saw unit is at the vertical position. Similarly, the second fixed stop member is disposed so that the rod abuts the second fixed stop member when the miter saw unit is leftwardly pivoted at a first predetermined angle from the vertical position. Further, the third fixed stop member is disposed so that the rod abuts the third fixed stop member when the miter saw unit is rightwardly pivoted at a second predetermined angle from the vertical position.
摘要翻译：复合斜切锯包括其上放置有工件的工作台，支撑锯片的斜切锯单元和以与斜面相关的斜切锯单元枢转地支撑的壳体，使得斜切锯单元至少可横向枢转。此外，斜切锯包括斜面机构，用于选择性地确定斜切锯单元在多个枢转位置中的任一个处的横向位置，包括垂直位置，其中锯片相对于工作台基本垂直地定位，以及向左和向右枢转位置，其中叶片从垂直位置横向向左和向右横向倾斜。所述斜面机构包括可动杆和三个固定止动构件，所述杆可操作以在抵靠所述固定止动构件中的一个的第一杆位置与不邻接所述固定止动构件之一之间的第二杆位置之间移动，斜切锯单元的侧向枢转运动。第一固定止动构件设置成当斜切锯单元处于垂直位置时，杆抵靠第一固定止动构件。类似地，第二固定止动构件设置成当斜切单元从垂直位置以第一预定角度向左枢转时，杆抵靠第二固定止动构件。此外，第三固定止动构件设置成当斜切单元从垂直位置以第二预定角度向右枢转时，杆抵靠第三固定止动构件。

7. 发明授权

US6032563A Bevel locking system for a sliding compound miter saw 失效
公开(公告)号：US6032563A
公开(公告)日：2000-03-07
申请号：US109515
申请日：1998-07-02
申请人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
发明人： William R. Stumpf , Mark E. Brunson , Scott M. Livingston , Michael L. O'Banion , Robert G. Moores, Jr. , John W. Miller , Daryl Meredith , Thomas Kaye , William G. Harman, Jr. , Adan Ayala
IPC分类号： B23D45/04 , B23D47/02 , B23Q1/28 , B27B5/29 , B23D45/14 , B27B5/20
CPC分类号： B23Q1/28 , B23D45/048 , B23D47/02 , B27B5/29 , Y10T83/7697 , Y10T83/7705 , Y10T83/7726 , Y10T83/7788 , Y10T83/8749 , Y10T83/8772 , Y10T83/8773 , Y10T83/9387
摘要： A compound miter saw includes a table on which a workpiece is placed, a miter saw unit supporting a saw blade, and a housing pivotally supporting the miter saw unit related to the table in such a manner that the miter saw unit is at least laterally pivotable. Further, the miter saw includes a bevel mechanism for selectively determining the lateral position of the miter saw unit at any of a plurality of pivoted positions, including a vertical position where the saw blade is positioned substantially vertically relative to the table, and leftward and rightward pivoted positions where the blade is inclined laterally leftwardly and laterally rightwardly from the vertical position. The bevel mechanism includes a movable rod and three fixed stop members, the rod being operable to move between a first rod position abutting one of the fixed stop members and a second rod position not abutting the one of the fixed stop members so as to permit the lateral pivotal movement of the miter saw unit. The first fixed stop member is disposed so that the rod abuts the first fixed stop member when the miter saw unit is at the vertical position. Similarly, the second fixed stop member is disposed so that the rod abuts the second fixed stop member when the miter saw unit is leftwardly pivoted at a first predetermined angle from the vertical position. Further, the third fixed stop member is disposed so that the rod abuts the third fixed stop member when the miter saw unit is rightwardly pivoted at a second predetermined angle from the vertical position.

8. 发明授权

US07939193B2 Battery cooling system 有权
标题翻译：电池冷却系统
公开(公告)号：US07939193B2
公开(公告)日：2011-05-10
申请号：US11877199
申请日：2007-10-23
申请人： Robert G. Moores, Jr. , Rouse R. Bailey, Jr. , Robert Bradus , John R. Cochran , Lee W. Ramstrom , Douglas L. Kreiser
发明人： Robert G. Moores, Jr. , Rouse R. Bailey, Jr. , Robert Bradus , John R. Cochran , Lee W. Ramstrom , Douglas L. Kreiser
IPC分类号： H01M10/50
CPC分类号： H02J7/0044 , B25F5/008 , H01M2/1022 , H01M2/1055 , H01M2/1061 , H01M2/1066 , H01M2/12 , H01M2/20 , H01M10/46 , H01M10/482 , H01M10/486 , H01M10/613 , H01M10/615 , H01M10/617 , H01M10/623 , H01M10/6235 , H01M10/63 , H01M10/643 , H01M10/652 , H01M10/653 , H01M10/6551 , H01M10/6554 , H01M10/6555 , H01M10/6556 , H01M10/6557 , H01M10/6563 , H01M10/6566 , H01M10/6572 , H01M10/66 , H01M10/667 , H02J7/0042 , Y10T29/49108
摘要： A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.
摘要翻译：无绳电动工具具有壳体，该壳体包括与可拆卸电池组联接的机构。电池组包括一个或多个电池单元以及电池组壳体中的排气系统，其使流体能够移动通过壳体。与电池组相关联的机构以从电池组散发热量。

9. 发明授权

US06949309B2 Battery cooling system 失效
标题翻译：电池冷却系统
公开(公告)号：US06949309B2
公开(公告)日：2005-09-27
申请号：US10223964
申请日：2002-08-20
申请人： Robert G. Moores, Jr. , Rouse R. Bailey, Jr. , Robert Bradus , John R. Cochran , Lee W. Ramstrom , Fred S. Watts , Paul S. White , Daniele C. Brotto , Janet M. Embrey
发明人： Robert G. Moores, Jr. , Rouse R. Bailey, Jr. , Robert Bradus , John R. Cochran , Lee W. Ramstrom , Fred S. Watts , Paul S. White , Daniele C. Brotto , Janet M. Embrey
IPC分类号： B25F5/00 , H01M2/10 , H01M2/12 , H01M2/20 , H01M10/46 , H01M10/50 , H02J7/00
CPC分类号： H02J7/0044 , B25F5/008 , H01M2/1022 , H01M2/1055 , H01M2/1061 , H01M2/1066 , H01M2/12 , H01M2/20 , H01M10/46 , H01M10/482 , H01M10/486 , H01M10/613 , H01M10/615 , H01M10/617 , H01M10/623 , H01M10/6235 , H01M10/63 , H01M10/643 , H01M10/652 , H01M10/653 , H01M10/6551 , H01M10/6554 , H01M10/6555 , H01M10/6556 , H01M10/6557 , H01M10/6563 , H01M10/6566 , H01M10/6572 , H01M10/66 , H01M10/667 , H02J7/0042 , Y10T29/49108
摘要： A cordless power tool has a housing which includes a mechanism to couple with a removable battery pack. The battery pack includes one or more battery cells as well as a vent system in the battery pack housing which enables fluid to move through the housing. A mechanism is associated with the battery pack to dissipate heat from the battery pack.
摘要翻译：无绳电动工具具有壳体，该壳体包括与可拆卸电池组联接的机构。电池组包括一个或多个电池单元以及电池组壳体中的排气系统，其使流体能够移动通过壳体。与电池组相关联的机构以从电池组散发热量。

10. 发明授权

US6023848A Saw blade clamping arrangement for a power tool 失效
标题翻译：用于电动工具的锯片夹紧装置
公开(公告)号：US6023848A
公开(公告)日：2000-02-15
申请号：US057788
申请日：1998-04-09
申请人： Stephen C. Dassoulas , Jason R. Melvin , Robert G. Moores, Jr.
发明人： Stephen C. Dassoulas , Jason R. Melvin , Robert G. Moores, Jr.
IPC分类号： B23D51/10 , B23D61/12 , B27B19/00
CPC分类号： B23D51/10 , Y10S279/905 , Y10T279/17752
摘要： A saw blade clamping arrangement particularly for power reciprocating saws and similar tools having a reciprocating shaft connected to a cutting member includes a locking member and a locating pin which cooperates to prevent inadvertent removal of the saw blade. The saw blade clamping arrangement further includes a support member carried by the drive shaft for movement therewith. The support member at least partially defines a longitudinal slot for receiving the saw blade. The locating pin extends into the longitudinal slot and is adapted for partial insertion into the aperture from a first side of the saw blade. The locking member, which in the preferred embodiment is a spherical bearing, is operative for selectively engaging the saw blade with the drive shaft. The locking member is movable to a locking position in which the locking member is partially inserted into the aperture from a second side of the saw blade.
摘要翻译：特别是用于动力往复锯和具有连接到切割构件的往复轴的类似工具的锯片夹紧装置包括锁定构件和定位销，所述定位销协作以防止锯片的意外移除。锯片夹持装置还包括由驱动轴承载以与其一起运动的支撑构件。支撑构件至少部分地限定用于接收锯片的纵向槽。定位销延伸到纵向槽中，并且适于从锯片的第一侧部分地插入到孔中。在优选实施例中的锁定构件是球面轴承，用于选择性地将锯片与驱动轴接合。锁定构件可移动到锁定位置，在锁定位置，锁定构件从锯片的第二侧部分地插入到孔中。

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