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公开(公告)号：US06892619B1
公开(公告)日：2005-05-17
申请号：US10728025
申请日：2003-12-04
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B23D45/042 , Y10T83/7734 , Y10T83/7788
Abstract: A circular saw includes a base member abutting a supporting surface and an operating arm pivotally mounted to the base member. A gearbox is formed on a free end of the operating arm. The gearbox includes a first cavity and a second cavity respectively laterally defined in two opposite side of the gearbox. A hole is laterally defined in a bottom of the first cavity and communicates with the second cavity. A handle extends from the gearbox for user to easily operate the circular saw. A motor is laterally securely mounted to the bottom of the first cavity and partially received in the first cavity in the gearbox. A blade device is laterally mounted to the second side of the gearbox and connected to the motor so that the blade device is driven when the motor is operated.
Abstract translation: 圆锯包括邻接支撑表面的基部构件和可枢转地安装到基座构件的操作臂。 齿轮箱形成在操作臂的自由端上。 齿轮箱包括分别横向限定在齿轮箱的两个相对侧的第一腔和第二腔。 横向地限定在第一腔的底部中的孔并与第二腔连通。 一个手柄从变速箱伸出，用于使用，以方便操作圆锯。 电动机侧向牢固地安装到第一腔的底部并且部分地容纳在齿轮箱中的第一腔中。 叶片装置横向地安装在齿轮箱的第二侧并连接到马达，使得当马达被操作时驱动叶片装置。
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公开(公告)号：US20050066788A1
公开(公告)日：2005-03-31
申请号：US10672868
申请日：2003-09-26
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
IPC: B23D45/04
CPC classification number: B23D45/048 , Y10T83/7697 , Y10T83/7705 , Y10T83/7763 , Y10T83/7772 , Y10T83/7788
Abstract: A movement adjust device for a circular saw includes a holder secured on a base member of the circular saw and having two through holes defined in tow opposite ends the holder. Two first guide bars each slidably extends through a corresponding through hole in the holder. Each first guide bar has a first end securely received in a first stopper and a second end securely received in a connector in which two through holes is defined between the second end of each of the two first guide bars. Two second guide bars each slidably extend through a corresponding through hole in the connector. Each second guide bar has a first end securely received in a second stopper and a second end securely received in a third stopper that is secured on a hinge of the circular saw.
Abstract translation: 用于圆锯的运动调节装置包括固定在圆锯的基部构件上的保持架，并具有限定在夹持器的相对两端的两个通孔。 两个第一引导杆各自可滑动地延伸穿过保持器中相应的通孔。 每个第一导杆具有牢固地容纳在第一止动件中的第一端和牢固地容纳在连接器中的第二端，其中在两个第一导杆中的每一个的第二端之间限定有两个通孔。 两个第二引导杆各自可滑动地延伸穿过连接器中相应的通孔。 每个第二导杆具有牢固地容纳在第二止动件中的第一端和牢固地容纳在固定在圆锯的铰链上的第三止动件中的第二端。
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公开(公告)号：US20050066786A1
公开(公告)日：2005-03-31
申请号：US10672869
申请日：2003-09-26
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B23D47/04 , Y10T83/7487
Abstract: A clamping device for a circular saw includes a body that is adapted to be secured on a worktable of the circular saw. A threaded rod longitudinally extends through the body. A braking block is pivotally mounted to the body for selectively engaged to the threaded rod and torsion spring is mounted between the body and the braking block to provide a restitution force to the braking block. A pin laterally extends through the body and the braking block to hold the braking block in place.
Abstract translation: 用于圆锯的夹紧装置包括适于固定在圆锯工作台上的主体。 螺纹杆纵向延伸穿过主体。 制动块枢转地安装到主体以选择性地接合到螺杆，并且扭簧安装在主体和制动块之间，以向制动块提供恢复力。 一个销横向延伸穿过主体和制动块，以将制动块保持在适当的位置。
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公开(公告)号：US20050056130A1
公开(公告)日：2005-03-17
申请号：US10660378
申请日：2003-09-11
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B27B25/10 , B23D47/025 , Y10T83/6609 , Y10T83/773 , Y10T83/8773
Abstract: A feeding device for a table saw includes a sliding board slidably mounted on one side of a worktable of the table saw and having a moving direction corresponding to a saw blade. The sliding board includes two grooves defined in two opposite sides thereof and respectively parallel to the moving direction of the sliding board. A moving seat is selective slidably mounted on one side of the sliding board. A pushing rod is laterally slidably mounted to the moving seat and has a first side forming a pushing face for abutting against a datum of a workpiece. A first locking device and a second locking device respectively extend through the pushing rod and the moving seat to selectively hold the pushing rod and the moving seat in place for confirming a cutting angle of the workpiece.
Abstract translation: 用于台锯的进给装置包括滑动板，其可滑动地安装在台锯的工作台的一侧上并且具有对应于锯片的移动方向。 滑动板包括两个限定在其相对侧并分别平行于滑板的移动方向的凹槽。 移动座位选择性地可滑动地安装在滑板的一侧上。 推杆横向可滑动地安装到移动座椅上，并且具有形成用于抵靠工件的基准面的推动面的第一侧。 第一锁定装置和第二锁定装置分别延伸穿过推杆和移动座，以选择性地将推杆和移动座保持在适当位置，以确认工件的切割角度。
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公开(公告)号：US20050056128A1
公开(公告)日：2005-03-17
申请号：US10660406
申请日：2003-09-11
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B23D45/044 , B23D47/126 , B27B5/208 , Y10T83/207 , Y10T83/7693 , Y10T83/7697 , Y10T83/7701 , Y10T83/7763
Abstract: A circular saw includes a universal arm mounted to a rear end of a base member of the circular saw. A housing with a saw blade is pivotally connected to the universal arm. A drive device is longitudinally mounted to the housing for driving the saw blade and includes a casing secured on the housing. A motor is securely received in the casing and radially corresponding to the saw blade along a moving direction of the saw blade. A worm is longitudinally secured on a free end of the shaft extending from the motor. A worm gear is laterally rotatably mounted to the casing and engaged to the worm. An endless belt is mounted and surrounding a first belt wheel extending from the saw blade and the second belt wheel extending from the worm gear for driving the saw blade when the motor is operated.
Abstract translation: 圆锯包括安装在圆锯的基部构件的后端的通用臂。 具有锯片的壳体枢转地连接到通用臂。 驱动装置纵向地安装到壳体上以驱动锯片，并且包括固定在壳体上的壳体。 电动机被牢固地容纳在壳体中并且沿着锯片的移动方向径向对应于锯片。 蜗杆纵向固定在从马达延伸的轴的自由端上。 蜗轮横向可旋转地安装到壳体并与蜗杆接合。 环形带安装并且围绕从锯片延伸的第一带轮和从蜗轮延伸的第二带轮，用于当电动机操作时驱动锯片。
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Patent Agency Ranking
公开(公告)号：US6073531A
公开(公告)日：2000-06-13
申请号：US213511
申请日：1998-12-17
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
CPC classification number: B23D55/10 , B26D1/48 , Y10T83/7239 , Y10T83/7251
Abstract: A saw blade adjusting device of a band sawing machine includes an urging seat, an urging knob, an adjusting knob, a sliding seat, and a wheel frame. The urging seat has projections and depressions at a top end thereof, and the urging knob has urging portions projecting from a bottom side of an inner top end thereof, whereby the rotary adjusting motion of the urging knob is translated into an axial reciprocating urging motion. The relative abutment and separation of the urging knob and the urging seat is utilized to achieve tightening and positioning of a saw blade so that the tension of the saw blade and the distance between upper and lower wheel frames during violent cutting operation can be maintained stably to enhance the quality and efficiency of the cutting operation.
Abstract translation: 带锯机的锯片调节装置包括推动座，推压钮，调节钮，滑动座和轮架。 推动座在其顶端具有突起和凹陷，并且推动钮具有从其内顶端的底侧突出的推动部分，由此推动旋钮的旋转调节运动被转换成轴向往复推动运动。 利用推动旋钮和推动座的相对邻接和分离来实现锯片的紧固和定位，从而可以稳定地保持锯片的张力和猛烈切割操作期间上下框架之间的距离 提高切割作业的质量和效率。
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公开(公告)号：US5901269A
公开(公告)日：1999-05-04
申请号：US847216
申请日：1997-05-01
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
IPC: H02K7/065
CPC classification number: H02P7/295 , H02P7/245 , G05B2219/42016 , Y10T83/141
Abstract: A speed regulating circuit for a motor of a power coping saw includes a DC voltage circuit, a manual speed regulating circuit, a feedback controlling circuit and a motor driving circuit. The DC voltage circuit includes a diode, a resistor, a capacitor, and a Zener diode. The manual controlling circuit includes a Zener diode and a resistance. The feedback controlling circuit includes an amplifier, a transistor, a pulse transformer. The motor driving circuit includes an SCR and a diode. The manual controlling circuit may first be set with a reference voltage signal corresponding to the intended rotational speed of the motor. The reference voltage signal is sent to the feedback controlling circuit to get a rotational speed controlling signal of a motor with respect to the variation of loads. A DC current is then supplied to the motor driving circuit for constantly rotating the DC motor despite the variation of the load.
Abstract translation: 用于电动抓钳的电动机的调速电路包括直流电压电路，手动调速电路，反馈控制电路和电动机驱动电路。 直流电压电路包括二极管，电阻器，电容器和齐纳二极管。 手动控制电路包括齐纳二极管和电阻。 反馈控制电路包括放大器，晶体管，脉冲变压器。 电动机驱动电路包括SCR和二极管。 手动控制电路可以首先设置有与电动机的预期旋转速度相对应的参考电压信号。 参考电压信号被发送到反馈控制电路，以获得电动机相对于负载变化的转速控制信号。 然后，直流电流被提供给电动机驱动电路，以恒定地旋转直流电动机，尽管负载的变化。
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公开(公告)号：US20230085057A1
公开(公告)日：2023-03-16
申请号：US17475722
申请日：2021-09-15
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A miter saw includes a base including a pivotal turntable; a guide track affixed to one side of the base and including a lengthwise groove and a projection at an end of the lengthwise groove; a stationary fence affixed to the other side of the base; a removable fence on one side of the base, the removable fence aligned with and spaced apart from the stationary fence, the removable fence including a downward projecting, elongated sliding member slidably mounted in the lengthwise groove, a protrusion at an end of the sliding member, the protrusion being adjacent to the projection, a screw hole in the protrusion, and an adjustment screw rotatably disposed in the screw hole and urging against the projection; and a cutting assembly including a rotatable circular saw blade pivotably mounted on the base and disposed between the removable fence and the stationary fence.
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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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