Patents by Inventor Yueh-Ling Chiu
Yueh-Ling Chiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9079316Abstract: A length-adjustable mechanical arm includes: a base; a first arm unit having one end formed with a first pivot portion pivoted to the base, and another end formed with a second pivot portion, a second arm unit pivoted to the first arm unit includes a pivot member, an inner sleeve, an outer sleeve and an accessory mounting seat. The length of the second arm unit of the mechanical arm is adjustable by adjusting the inner and outer sleeves, and the second arm unit is switchable between an extended position and a retracted position. Therefore, the mechanical arm can be used for two distance operation.Type: GrantFiled: January 4, 2014Date of Patent: July 14, 2015Assignee: HIWIN TECHNOLOGIES CORP.Inventors: Yueh-Ling Chiu, Wu-Teng Hsieh
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Publication number: 20150190934Abstract: A length-adjustable mechanical arm includes: a base; a first arm unit having one end formed with a first pivot portion pivoted to the base, and another end formed with a second pivot portion, a second arm unit pivoted to the first arm unit includes a pivot member, an inner sleeve, an outer sleeve and an accessory mounting seat. The length of the second arm unit of the mechanical arm is adjustable by adjusting the inner and outer sleeves, and the second arm unit is switchable between an extended position and a retracted position. Therefore, the mechanical arm can be used for two distance operation.Type: ApplicationFiled: January 4, 2014Publication date: July 9, 2015Applicant: HIWIN TECHNOLOGIES CORP.Inventors: Yueh-Ling CHIU, Wu-Teng Hsieh
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Patent number: 8960038Abstract: A motion transmission module with a cooling device is aimed at solving the disadvantage of the conventional motion transmission module that the cooling structure of the conventional motion transmission module would increase the length or outer diameter of the nut. The nut is formed with a flat surface for mounting the cooling device, so that the length of the nut won't be increased. Furthermore, the cooling device also serves as a positioning block to fix the return member, it doesn't increase the outer diameter of the nut.Type: GrantFiled: October 9, 2013Date of Patent: February 24, 2015Assignee: Hiwin Technologies Corp.Inventors: Yueh-Ling Chiu, Jonus Liu
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Publication number: 20140033847Abstract: A motion transmission module with a cooling device is aimed at solving the disadvantage of the conventional motion transmission module that the cooling structure of the conventional motion transmission module would increase the length or outer diameter of the nut. The nut is formed with a flat surface for mounting the cooling device, so that the length of the nut won't be increased. Furthermore, the cooling device also serves as a positioning block to fix the return member, it doesn't increase the outer diameter of the nut.Type: ApplicationFiled: October 9, 2013Publication date: February 6, 2014Applicant: Hiwin Technologies Corp.Inventors: Yueh-Ling CHIU, Jonus LIU
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Publication number: 20130081497Abstract: A motion transmission module with a cooling device is aimed at solving the disadvantage of the conventional motion transmission module that the cooling structure of the conventional motion transmission module would increase the length or outer diameter of the nut. The nut is formed with a flat surface for mounting the cooling device, so that the length of the nut won't be increased. Furthermore, the cooling device also serves as a positioning block to fix the return member, it doesn't increase the outer diameter of the nut.Type: ApplicationFiled: October 1, 2011Publication date: April 4, 2013Inventors: Yueh-Ling CHIU, Jouns Liu
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Patent number: 8336416Abstract: A ball screw device includes a ball nut having a bore for receiving a screw shaft, and having a number of longitudinal channels and compartments for forming a zigzag shaped fluid flowing passage in the ball nut, a number of deflecting members engaged with the compartments of the ball nut and each having a recess for communicating adjacent channels with each other, the outer peripheral surfaces of the deflecting members are tilted relative to the ball nut for allowing the deflecting members to be expanded when the deflecting members are expanded, a cooling agent flows through the zigzag shaped fluid flowing passage for cooling the ball nut and for preventing the ball nut from being overheated.Type: GrantFiled: December 30, 2009Date of Patent: December 25, 2012Assignee: Hiwin Technologies Corp.Inventors: Yueh-Ling Chiu, Xin-He Chen
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Patent number: 8096203Abstract: A chain type transmission assembly doesn't have the problem that the chain interferes with the transmission assembly, the thickness of the links of the chain of the transmission assembly is precisely calculated by an equation, so that the chain can be prevented from interfering with the outer surface of the screw, thus substantially improving the efficiency and service life of the transmission assembly.Type: GrantFiled: July 28, 2009Date of Patent: January 17, 2012Assignee: Hiwin Technologies Corp.Inventors: Yueh-Ling Chiu, Yan-Yu Chen
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Publication number: 20110154924Abstract: A ball screw device includes a ball nut having a bore for receiving a screw shaft, and having a number of longitudinal channels and compartments for forming a zigzag shaped fluid flowing passage in the ball nut, a number of deflecting members engaged with the compartments of the ball nut and each having a recess for communicating adjacent channels with each other, the outer peripheral surfaces of the deflecting members are tilted relative to the ball nut for allowing the deflecting members to be expanded when the deflecting members are expanded, a cooling agent flows through the zigzag shaped fluid flowing passage for cooling the ball nut and for preventing the ball nut from being overheated.Type: ApplicationFiled: December 30, 2009Publication date: June 30, 2011Inventors: Yueh-Ling Chiu, Xin-He Chen
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Patent number: 7934438Abstract: A ball screw device includes a screw shaft rotatably engaged with a ball nut, and a number of bearing members received between the ball nut and the screw shaft, and a circulating device for circulating the bearing members, the circulating device includes an elongate member having two end blocks for engaging into the ball nut and having a passage for receiving the bearing members, and includes a housing member and a casing member each having a portion of the passage of the elongate member for allowing the passage of the elongate member to be opened and exposed and for allowing the housing member and the casing member to be formed with molding procedures.Type: GrantFiled: October 31, 2007Date of Patent: May 3, 2011Assignee: Hiwin Technologies Corp.Inventors: Yan Yu Chen, Yueh Ling Chiu
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Publication number: 20110023641Abstract: A chain type transmission assembly doesn't have the problem that the chain interferes with the transmission assembly, the thickness of the links of the chain of the transmission assembly is precisely calculated by an equation, so that the chain can be prevented from interfering with the outer surface of the screw, thus substantially improving the efficiency and service life of the transmission assembly.Type: ApplicationFiled: July 28, 2009Publication date: February 3, 2011Inventors: Yueh-Ling Chiu, Yan-Yu Chen
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Publication number: 20090107273Abstract: A ball screw device includes a screw shaft rotatably engaged with a ball nut, and a number of bearing members received between the ball nut and the screw shaft, and a circulating device for circulating the bearing members, the circulating device includes an elongate member having two end blocks for engaging into the ball nut and having a passage for receiving the bearing members, and includes a housing member and a casing member each having a portion of the passage of the elongate member for allowing the passage of the elongate member to be opened and exposed and for allowing the housing member and the casing member to be formed with molding procedures.Type: ApplicationFiled: October 31, 2007Publication date: April 30, 2009Inventors: Yan-Yu Chen, Yueh Ling Chiu
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Publication number: 20090090207Abstract: An external circulation type ball screw is provided with a helical passage in the outer surface of the nut. The helical passage and the inner helical groove of the nut are opposite in winding direction to each other. The nut is defined with two through holes which are connected to both ends of the inner helical groove and the helical passage, respectively, so that the helical passage and the inner helical groove are connected to each other to form a circulating path for the circulation of the balls. Since the helical passage winds about the outer periphery of the nut, the balls can roll more smoothly.Type: ApplicationFiled: October 7, 2007Publication date: April 9, 2009Inventors: Horng Ruey CHANG, Yueh-Ling CHIU, Wen-Tun LIN
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Publication number: 20090071278Abstract: A ball screw device includes a number of bearing members received between a ball nut and a screw shaft, and an image device engaged into the bore of the ball nut, and directed toward the screw shaft but spaced from the screw shaft for taking an image of the screw shaft and for viewing a changing of the inner thread of the screw shaft and for allowing the users to change or to replace the worn out ball nut and/or the worn out screw shaft and/or the worn out bearing members right away or at the best time. A processor device may be coupled to the image device for processing the images taken by the image device. A displayer may display the images, and a warning device may generate a warning signal when the screw shaft has been worn out.Type: ApplicationFiled: September 18, 2007Publication date: March 19, 2009Inventors: Yueh Ling Chiu, Wen Chia Wu
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Publication number: 20080190231Abstract: A ball screw device includes a ball nut having a number of helical groove portions and one or more channels, a screw shaft having a number of helical groove portions for threading with the ball nut, and a number of rolling members engaged in the helical groove portions of the ball nut and the screw shaft for facilitating a movement of the ball nut relative to the screw shaft. Two or more guide members are engaged in the helical groove portions of the screw shaft, and each has a slot to form an endless ball rolling passage together with the helical groove portions and the channel of the ball nut and to slidably receive the rolling members. The guide members each includes a projection for engaging with and for anchoring to the ball nut.Type: ApplicationFiled: December 1, 2005Publication date: August 14, 2008Inventors: Yueh Ling Chiu, Hung Sung Pan
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Publication number: 20080041175Abstract: A screw shaft device includes a screw shaft having an outer helical groove and having an intermediate portion, the screw shaft includes a longitudinal bore, a ball nut is threaded with helical groove of the screw shaft, and a number of ball bearings or rolling members are disposed between the ball nut and the screw shaft for facilitating a movement of the ball nut relative to the screw shaft, an inserted member is disposed in the intermediate portion of the longitudinal bore of the screw shaft, and the other inserted members are disposed in the end portions of the screw shaft, and the inserted member are made of different materials.Type: ApplicationFiled: July 27, 2006Publication date: February 21, 2008Inventors: Jui Long Hsu, Yueh Ling Chiu
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Publication number: 20070013535Abstract: A liquid low level warning device is used on the nut of a screw bolt or the slide block of a linear guideway, and comprises: a circuit terminal, rail and buoyage. The terminal is disposed on a lubricating device in such a manner that an end of the terminal is electrically connected to external equipment (by wire or wireless means) and another end is connected to the rail and positioned in the receiving space of the lubricating device. A stop block is provided on the upper end of the rail and the buoyage is moveably mounted on the rail. With such arrangements, the liquid low level warning device will produce alarm signals when the lubricating oil is lowered to a predetermined level.Type: ApplicationFiled: July 15, 2005Publication date: January 18, 2007Inventors: Yueh-Ling Chiu, Wen-Chia Wu
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Patent number: 6851722Abstract: A coupled circulation tube for a ball screw unit. The tube is formed on a planar surface at one side of the ball screw bearing, each tube joined to two circulation holes. Each circulation tube is formed by coupling two symmetrical rigid metallic half tubes at recessed grooves and flanges interposedly arrayed one after another longitudinally along the wall of each half tube to form a resultant U shaped arcuate elbow tube for ball circulation such that it is firmly constructed with a desired toughness free from loosening, cracking or deforming by constant collision and abrasion of the rolling balls.Type: GrantFiled: December 28, 2001Date of Patent: February 8, 2005Assignee: Hiwin Technologies Corp.Inventors: Yueh-Ling Chiu, Paul Yang
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Patent number: 6561054Abstract: A spacer interposed between two adjacent balls formed into an elaborately designed cylinder like configuration which is able to minimize noise, vibration and frictional loss due to mutual collision and impact of the balls. The spacer is provided with a let through hole therein for further enhancing lubricating and cooling effect.Type: GrantFiled: February 15, 2001Date of Patent: May 13, 2003Assignee: Hiwin Technologies Corp.Inventors: Yueh-Ling Chiu, Paul Yang
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Publication number: 20030062719Abstract: The coupled circulation tube for ball screw unit disclosed is formed on the planar surface at one side of the ball screw bearing each tube jointing to two circulation holes. Each circulation tube is coupled of two symmetrical rigid metallic half tubes by a plurality of recessed grooves and flanges interposedly arrayed one after another longitudinally along the wall of each half tube thereby coupling into a resultant U shaped arcuate elbow tube for ball circulation such that it is firmly constructed with a desired toughness free from loosening, cracking or deforming by constant collision and abrasion of the rolling balls.Type: ApplicationFiled: December 28, 2001Publication date: April 3, 2003Inventors: Yueh-Ling Chiu, Paul Yang
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Patent number: 6443620Abstract: A spacer is interposed between two adjacent balls and is formed into an elaborately designed cylinder-like configuration which is able to minimize noise and frictional loss due to mutual collision and impact of the balls. A lubrication let through hole is provided therein to further improve lubrication and cooling effects.Type: GrantFiled: September 15, 2000Date of Patent: September 3, 2002Assignee: Hiwin Technologies Corp.Inventors: Yueh-Ling Chiu, Paul Yang