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公开(公告)号：US20220176510A1
公开(公告)日：2022-06-09
申请号：US17116334
申请日：2020-12-09
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A base assembly includes a first horizontal brace, a second horizontal brace, a first horizontal interconnection interconnecting front ends of the first and second horizontal braces, a second horizontal interconnection interconnecting rear ends of the first and second horizontal braces, and first, second, third and fourth vertical posts each releasably secured to the underside of the worktable and the rear ends of the first and second horizontal braces; a control switch secured to the front ends of the first and second horizontal braces, and the first interconnection; and a detachable worktable including first and second sliding rods, an opening, first and second bifurcations, a housing; a chute; first and second bossed holes, two opposite third bossed holes, two opposite fourth bossed holes, first and second C-shaped clamps, a transverse second threaded hole, and screws.
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公开(公告)号：US11305452B1
公开(公告)日：2022-04-19
申请号：US17329363
申请日：2021-05-25
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A power miter saw includes a turntable being rotatable on a base; a bevel post secured to a support assembly and pivotably connected to the base, the bevel post including a stepped-diameter channel, a structural member, and a complementary member; a curved graduated board disposed on the turntable and including spaced apertures; a shaft including an enlargement proximate a head, and a threaded end, the shaft inserted through the channel with the head disposed in the aperture; a biasing member put on the shaft and anchored in the channel; and an activation handle including a rod configured to pivotably move between a first position of the structural member and a second position of the structural member, a pivot hole with the threaded end passing through, and a projection engaged with the complementary member in a locked position; and an adjustable nut secured to the threaded end.
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公开(公告)号：US10828736B2
公开(公告)日：2020-11-10
申请号：US16435505
申请日：2019-06-09
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A fence assembly of a table saw includes rear and front sliding members on two rails of a table respectively, the rear sliding member having three top projections, the front sliding member having three forward projections, a transverse member interconnecting the sliding members, and a spring biased workpiece guide bar on the transverse member. The workpiece guide bar includes a front locking element for locking the front sliding member, a rear locking element for locking the rear sliding member, the rear locking element having a recess for receipt of the top projection, and a spring biased lever pivotably secured to a front end of the workpiece guide bar. A latch of the lever can be engaged with a protuberance of the front locking element to lock the front locking element or disengaged from the protuberance to unlock same. The lever includes a wedge for locking the front sliding member.
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公开(公告)号：US10759457B1
公开(公告)日：2020-09-01
申请号：US16506170
申请日：2019-07-09
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
IPC: B62B1/12
Abstract: A folding cart includes a frame including front and rear plates having two inner extensions with a fastening hole, and four corner plates having a first pivot hole, a first hole, and an oval second hole; two rear wheels; four legs having a second pivot hole, a first hole member, and a second hole member; and four folding devices each including a trigger including two bent wings having a first through hole, and a top projection having a second through hole; a first pivot driven through the first pivot hole, the second pivot hole, and the fastening hole; a second pivot driven through the second hole member and the first through holes; a spring loaded pin driven through the first hole member and the second through hole; and a clip ring partially disposed in the groove and urging against the projection.
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公开(公告)号：US10434588B1
公开(公告)日：2019-10-08
申请号：US15934016
申请日：2018-03-23
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A power miter saw includes an activation assembly including a lever, a spring loaded drive rod passing through an underside of the table, a curved link pivotably secured to the drive rod, a pivotal member pivotably secured to the curved link and secured to the lever, a driven rod, a clamping member in an edge of a positioning seat, and an axle through the positioning seat and having an end pivotably disposed in a support seat; a graduated member including apertures; and a locking device including a hollow member having two side slots, a spring loaded cam member, and a transverse bar passing through the positioning seat, the slots, and the cam member; a spring loaded pin secured to a forward end of the hollow member; and two lever members secured to two ends of the transverse bar respectively. A pivotal movement of the lever unfastens a positioning seat.
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Patent Agency Ranking
公开(公告)号：US09849605B2
公开(公告)日：2017-12-26
申请号：US15168021
申请日：2016-05-28
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B27B27/06 , B23D45/044 , B23D47/025 , B27B5/29
Abstract: A power miter saw includes a base assembly including a frame, cavities on a bottom of the frame, two supports at two sides of the frame respectively, and two parallel sliding rods passing through one support; a table assembly including a rotatable table mounted on the frame, a miter arm secured to the rotatable table, and a fence at an edge of the rotatable table and secured to the supports; and a saw blade and motor assembly. The fence includes a central curved top, two platforms at two ends of the central curved top respectively, two shoulders each at a joining portion of the curved top and the adjacent platform, and two aligned grooved members each extending outward from a position proximate the platform. The platforms are at an elevation greater than that of the miter arm.
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公开(公告)号：US20170341258A1
公开(公告)日：2017-11-30
申请号：US15168021
申请日：2016-05-28
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B27B27/06 , B23D45/044 , B23D47/025 , B27B5/29
Abstract: A power miter saw includes a base assembly including a frame, cavities on a bottom of the frame, two supports at two sides of the frame respectively, and two parallel sliding rods passing through one support; a table assembly including a rotatable table mounted on the frame, a miter arm secured to the rotatable table, and a fence at an edge of the rotatable table and secured to the supports; and a saw blade and motor assembly. The fence includes a central curved top, two platforms at two ends of the central curved top respectively, two shoulders each at a joining portion of the curved top and the adjacent platform, and two aligned grooved members each extending outward from a position proximate the platform. The platforms are at an elevation greater than that of the miter arm.
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公开(公告)号：US09731364B2
公开(公告)日：2017-08-15
申请号：US14674351
申请日：2015-03-31
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B23D47/025
Abstract: A table saw is provided with a table assembly including an upper cutting surface having a front edge and a rear edge; a slide assembly including, at each of the front edge and the rear edge, an inner slide member, an intermediate slide member slidably journalled in the inner slide member, and an outer slide member slidably journalled in the intermediate slide member wherein the intermediate slide member includes a pin moveably disposed in an elongated slot of the outer slide member; and a lock assembly under the upper cutting surface and including a lever, a cam at a distal end of the lever, and a spring biased two part rod wherein the cam is pivotably disposed between two parts of the rod. In response to a clockwise turning of the lever and the cam the biasing member expands to unlock the slide assembly.
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公开(公告)号：US09186734B2
公开(公告)日：2015-11-17
申请号：US14055001
申请日：2013-10-16
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
IPC: B23D45/06
CPC classification number: B23D45/068 , B23D45/06 , Y10T83/7693
Abstract: A height adjustment mechanism of a table saw is provided with a support including a concave seat, two first sleeves spaced from both ends of the seat respectively, a guiding hole, and two parallel brackets spaced from the guiding hole; a drive rod rotatably extended through the brackets; a first bevel gear mounted to an open end of the drive rod; first and second guide uprights fastened in the first sleeves respectively; a threaded guide rod inserted through the guiding hole; a second bevel gear at a bottom end of the guide rod to mesh with the first bevel gear; a motor including a threaded guide hole secured to the guide rod, two second sleeves with the first and second guide uprights sliding through respectively; and two support elements each including a concave base member, a sliding rail on the base member, and a fastening member.
Abstract translation: 台锯的高度调节机构设置有包括凹座的支撑件，分别与座的两端间隔开的两个第一套筒，导向孔和与导向孔间隔开的两个平行托架; 可旋转地延伸穿过支架的驱动杆; 安装到驱动杆的开口端的第一锥齿轮; 第一和第二导轨立柱分别固定在第一个袖子中; 穿过引导孔插入的螺纹导杆; 在所述导杆的底端处的第二锥齿轮与所述第一锥齿轮啮合; 包括固定在导杆上的螺纹导向孔的马达，分别具有第一和第二引导立柱的两个第二套筒， 以及两个支撑元件，每个支撑元件包括凹形基座构件，在基座构件上的滑轨和紧固构件。
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公开(公告)号：US20150108418A1
公开(公告)日：2015-04-23
申请号：US14057208
申请日：2013-10-18
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B60B33/066 , B25H1/04 , B27B5/10 , B27B5/16 , B62B5/0083
Abstract: A leg lifting mechanism for a table saw including a circular saw blade extending upward from an upper cutting surface, and a base mounted under a stand, the base having first and second leg assemblies, a first wheel assembly pivotably secured to the first leg assembly, and at least two second wheel assemblies secured to the second leg assembly is provided with a foot pedal including two side flanks pivotably secured to the first leg assembly, each of the side flanks having a straight edge and a cam edge. Clockwise rotation of the foot pedal about the first wheel assembly inward moves the cam edges on top of the first wheel assembly until portions of the straight edges grappingly engage the top of the first wheel assembly and portions of the first and second leg assemblies are lifted above the supporting surface.
Abstract translation: 一种用于台锯的腿部提升机构，包括从上切割表面向上延伸的圆锯片和安装在支架下方的底座，所述基座具有第一和第二腿部组件，可枢转地固定到第一腿部组件的第一轮组件， 并且固定到第二腿组件的至少两个第二轮组件设置有脚踏板，脚踏踏板包括可枢转地固定到第一腿组件的两个侧翼，每个侧翼具有直边缘和凸轮边缘。 脚踏板围绕第一车轮组件向内的顺时针旋转使第一车轮组件顶部的凸轮边缘移动，直到直边的部分与第一车轮组件的顶部成共面接合，并且将第一和第二腿组件的部分提升到 支撑面。
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