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    • 2. 发明授权
    • Pipe cutting apparatus
    • 管切割设备
    • US5881616A
    • 1999-03-16
    • US736423
    • 1996-10-24
    • Takashi Nanzai
    • Takashi Nanzai
    • B23D21/00B23D21/04B23B3/04
    • B23D21/04Y10T82/16262Y10T82/16475
    • A cam mounting gear having a number of teeth smaller by one than the number of teeth of a main gear which is driven to rotate is disposed in parallel to the main gear, and a cam having a tapered face formed thereon such that the thickness thereof gradually increases along an inner periphery thereof is disposed on an inner wall of the cam mounting gear. A main holder having a cutter blade and a bearing which contacts with the cam is supported for rotation on a flat face portion of the main gear. As rotation of the main gear is transmitted to the cam mounting gear via a pinion, the bearing of the main holder is driven to roll on the tapered face of the cam, and thereupon, the cutter blade is displaced in a direction toward the center of the apparatus to cut a cutting object pipe located at a central location of the apparatus.
    • 具有比被驱动旋转的主齿轮的齿数小一倍的齿轮的凸轮安装齿轮与主齿轮平行设置,并且在其上形成有锥形面的凸轮使得其逐渐的厚度 沿其内周的增加设置在凸轮安装齿轮的内壁上。 具有切割刀片和与凸轮接触的轴承的主支架被支撑以在主齿轮的平坦表面部分上旋转。 当主齿轮的旋转通过小齿轮传递到凸轮安装齿轮时,主支架的轴承被驱动以在凸轮的锥形表面上滚动,并且随后,切割刀沿朝向中心的方向移位 切割位于设备的中心位置的切割物料管的设备。
    • 4. 发明授权
    • Flatcar for carrying the burden
    • 平车承担负担
    • US4906014A
    • 1990-03-06
    • US304861
    • 1989-01-30
    • Takashi Nanzai
    • Takashi Nanzai
    • B62B1/08B62B5/02
    • B62B5/02B62B1/08
    • A handtruck for use in carrying a load, comprises springs installed on a frame, a connection shaft received rotatably in bearings mounted on the opposite end portion of the springs and substantially parallel with the lateral extend of the frame, a support member for supporting a first pair of wheels which is fixed to the connection shaft, and another support member for supporting a second pair of wheels which is also firmly fixed to the same. A rotation shaft is rotatably mounted on the support member for supporting the second pair of wheels in order to cause the second wheels to rotate around the shaft axis approximately normal to the axis of the connection shaft.
    • 一种用于承载负载的手推车,包括安装在框架上的弹簧,连接轴可旋转地容纳在安装在弹簧的相对端部上并与框架的横向延伸平行的轴承中;支撑构件,用于支撑第一 固定在连接轴上的一对轮,以及用于支撑也牢固地固定在其上的第二对车轮的另一个支撑部件。 旋转轴可旋转地安装在支撑构件上用于支撑第二对车轮,以便使第二轮围绕轴的轴线大致垂直于连接轴的轴线旋转。
    • 5. 发明授权
    • Transporter with function of maintaining and moving center of gravity
    • 具有维持和移动重心功能的运输车
    • US5577875A
    • 1996-11-26
    • US106760
    • 1993-08-16
    • Takashi Nanzai
    • Takashi Nanzai
    • B62B3/06B66F5/04
    • B62B3/0612
    • A transporter for carrying on a surface an object having a center of gravity, the transporter including a first arm having a longitudinal center line which is arranged to lift the object; a second arm operatively connected to the first arm at one end thereof; a wheel rotatably mounted to the second arm, the wheel having an axis of rotation, the first arm being disposed relative to the wheel so that the longitudinal center line of the first arm intersects the axis of the wheel; a sensor for sensing a variation of an inclination angle of the second arm relative to the surface; and a drive mechanism, connect to the sensor, for driving the first arm, the sensor controlling the drive mechanism such that the drive mechanism moves the first arm in response to the sensed variation of the inclination angle of the second arm relative to the surface so as to maintain the center of gravity of the object above the axis of the wheel regardless of the inclination of the second arm relative to the surface.
    • 一种运送器,用于在表面上承载具有重心的物体,所述运送器包括第一臂,所述第一臂具有布置成提升所述物体的纵向中心线; 在其一端可操作地连接到第一臂的第二臂; 轮可旋转地安装到第二臂上,轮具有旋转轴线,第一臂相对于车轮设置,使得第一臂的纵向中心线与车轮的轴线相交; 传感器,用于感测第二臂相对于表面的倾斜角的变化; 以及驱动机构,连接到所述传感器,用于驱动所述第一臂,所述传感器控制所述驱动机构,使得所述驱动机构响应于所述感测到的所述第二臂相对于所述表面的倾斜角的变化而移动所述第一臂,因此 以便将物体的重心保持在车轴的轴线上,而与第二臂相对于表面的倾斜度无关。
    • 6. 发明授权
    • Method for screen printing of paste
    • 糊状丝网印刷方法
    • US5309837A
    • 1994-05-10
    • US097286
    • 1993-07-26
    • Takashi Nanzai
    • Takashi Nanzai
    • B41F15/40B41F35/00H05K3/12H05K3/26H05K3/34
    • H05K3/1233B41F15/40B41F35/003H05K2203/0126H05K2203/0783H05K2203/082H05K3/26H05K3/3484
    • A method for printing solder paste onto a surface of a printed circuit board through the medium of a screen having openings. The method includes feeding the paste into a chamber of a dispenser, dispensing the paste contained in the chamber onto a first side of the screen and onto the surface of the board from the dispenser through a slit-like aperture, removing paste residue from the first side of the screen by a blade extending from a first cleaning apparatus, removing paste residue from a second side of the screen by another blade extending from a second cleaning apparatus, and sucking and transporting the paste residue adhered to inner peripheral surfaces of openings in the screen as well as the paste residue being removed from the second side of the screen by a vacuum device connected to the second cleaning apparatus. The slit-like aperture of the dispenser is formed by a fixed front wall and a moveable rear wall selectively moving toward and away from the fixed front wall.
    • 通过具有开口的筛网的介质将焊膏印刷到印刷电路板的表面上的方法。 该方法包括将糊剂进料到分配器的腔室中,通过狭缝状的孔从分配器将包含在腔室中的浆料分配到筛网的第一侧和板上的表面上,从第一 通过从第一清洁装置延伸的叶片的一侧,通过从第二清洁装置延伸的另一个叶片从所述筛网的第二侧除去糊料残留物,并且吸附和输送粘附到所述筛网的开口的内周面上的糊料残留物 屏幕以及通过连接到第二清洁装置的真空装置从屏幕的第二侧除去的糊状残余物。 分配器的狭缝状孔由固定的前壁和可移动的后壁选择性地朝向和远离固定的前壁移动而形成。
    • 7. 发明授权
    • Printed wiring board tester
    • 印刷线路板测试仪
    • US4801876A
    • 1989-01-31
    • US37004
    • 1987-04-10
    • Takashi Nanzai
    • Takashi Nanzai
    • G01R1/067G01R1/073H01R13/04G01R1/04
    • G01R1/06722
    • A printed wiring board tester which comprises first and second fixture members disposed in spaced-apart, substantially parallel relationship with respect to each other, a plurality of probe pins disposed between the first and second fixture members, and slidably extending therethrough, the probe pins comprising a first pin element having a large diameter section connected with a small diameter section by a stepped portion, the larger diameter section having a free end which is provided for engagement with the terminal area of a printed wiring board to be tested, a cylindrical second pin element divided into large and small diameter sections, the larger diameter section slidably fitting over the small diameter section of the first pin element with the end thereof defining a stopper jaw which engages the stopped portion, and a cord connecting element extending into and connected to the small diameter section of the second pin element, and a third pin element comprising a coiled spring member which is loosely fitted around the periphery of the second pin portion and disposed between said first and second fixture members, one end of the spring member engaging the stopper jaw of the second pin element and the other end thereof engaging the fixture member, said coiled spring member imparting a bias to the first pin element to ensure that it is in positive contact with the terminal area of the printed wiring board.
    • 10. 发明授权
    • Apparatus and system for screen printing of solder paste onto printed
circuit boards
    • 焊膏丝网印刷到印刷电路板上的装置和系统
    • US5287806A
    • 1994-02-22
    • US902963
    • 1992-06-23
    • Takashi Nanzai
    • Takashi Nanzai
    • B41F15/08B23K3/06B23K3/08B41F15/40H05K3/12H05K3/26H05K3/34B41L13/18
    • H05K3/1233B23K3/06B23K3/0692B23K3/08H05K2203/0126H05K2203/0783H05K2203/082H05K3/26H05K3/3484
    • A screen printing apparatus for printing solder paste onto a surface of a printed circuit board through the medium of a screen having openings. The apparatus includes a solder paste automatic supply dispenser of a nonflexible box-like structure which is arranged to be displased along a pair of guide rails back and forth and to be raised and lowered relative to the guide rails. The dispenser has a chamber for containing solder paste to be printed on the surface of the circuit board and an adjusting device attached to the dispenser for adjusting the temperature of the solder paste contained in the chamber so as to be capable of maintaining the temperature at a predetermined degree. The chamber is provided, at a bottom potion thereof, with a slit-like aperture extending normal to the direction of travel of the dispenser and arranged to be normally closed and to be kept open to automatically supply a predetemined amount of the solder paste contained in the chamber onto an upper surface of the screen during printing. The aperture is provided, at its rear edge portion, with a squeegee blade extending along the entire length of the aperture and being adapted to be kept in contact with the upper surface of the screen at its lower end during printing.
    • 一种丝网印刷装置,用于通过具有开口的筛网的介质将焊膏印刷到印刷电路板的表面上。 该装置包括:非柔性盒状结构的焊膏自动供给分配器,其布置成沿着一对导轨前后移动并相对于导轨升高和降低。 分配器具有用于容纳要印刷在电路板表面上的焊膏的室,以及附着在分配器上的调节装置,用于调节容纳在室中的焊膏的温度,从而能够将温度维持在 预定程度。 在其底部部分处设有狭缝状孔,其垂直于分配器的行进方向延伸,并且布置成通常关闭并保持打开以自动提供预定量的包含在其中的焊膏 在打印期间将该腔室放置在屏幕的上表面上。 该孔在其后边缘部分处设置有沿着孔的整个长度延伸的刮刀,并且适于在打印期间在其下端保持与屏幕的上表面接触。