Abstract: A coil assembly for a linear motor includes a coil unit which has multiple adjacently arranged coils, a base, and a resin encapsulated layer. The coils have two corresponding vertical action sides, a first non-action side, and a second non-action side. The coils further form multiple interlaced first bending sections on the first non-action side. Plural conducting wires disposed on the second non-action side could connect to an external cable on an end section of the coil unit. The base has a receiving slot thereon. The cross-section of the receiving slot corresponds in shape to that of the first bending sections for insertion of the coils. The resin encapsulated layer covering the coils and sealing the receiving slot of the base increases the contacting area between the coils and the inner wall of the receiving slot of the base to enhance the heat dissipation rate.

Abstract: A ball retainer chain includes a flat belt with axially arranged holes defined thereon. A separating portion is disposed between every two holes; upper/lower spacers combine with the separating portion. The surface between the separating portion and the adjacent hole is formed by a smooth surface. Partial spacer is formed by a spherical surface that smoothly connected to the hole surface. The spherical surfaces interlacedly arranged at a right side a left side include an opening with a vertical direction and a lateral directions corresponding to the flat belt, so that a mold pair reliant on a slantwise opening and closing manner would complete an injection molding. A smooth cylindrical form at two ends of the flat belt connects to an indentation at an inner or a mold surface of the flat belt. Thereby, while applying the belt to a linear guide apparatus, the cylindrical form could adjustably bend inward or outward for achieving a fluent traveling.

Abstract: The present invention discloses a unit coil, a coil assembly and a coreless type linear motor. The unit coil includes bent subcoils arranged adjacent to one another and disposed on a non-acting side axially. The coil assembly includes tri-phase unit coil modules arranged in an operating direction, and the tri-phase unit coil module is composed of three identical unit coils alternately stacked and sealed by a resin layer, and the unit coil is formed by bending and stacking sub-coils. The bent sub-coils are stacked to a sufficient thickness or arranged to a sufficient width to achieve the desired driving force, and then a magnetic rail is provided to form a coreless type linear motor. In the aforementioned structure, the unit coil composed by an alternately overlapping layout method effectively reduces the required space of the coil assembly, and the sub-coils can be manufactured easily and will not be damaged easily.

Abstract: A ball chain comprises a sequence of balls and an longitudinally elongated spacing chain having a sequence of holes thereon for receiving the balls. The spacing chain further includes a sequence of spacers interposed between the balls whereby the balls will be separated to each other, at least two longitudinally extended flexible strip and a plurality of transverse flexible connecting beam whose two ends respectively are connected to the longitudinal flexible strip, whereby the spacers attach to said connecting beam through an elastic member. The spacers can accordingly deflect and twist freely and the transverse flexible connecting beam can keep as long as possible and provide the best flexibility for being bent in various directions. Therefore, the ball chain can run in a three-dimensionally direction-chain recirculation channel smoothly and with low resistance.

Abstract: A linear guide device comprises a rail, at least a slide member and multiple rows of rolling elements. The slide member comprises a rigid body; a bottom frame; a pair of end caps and a pair of reinforce plates. The rail and rigid body provide multiple rows of raceways opposed for the rolling elements. The bottom frame contains a plurality of lubricant reservoirs with lubrication pads inside and directly outstretch from the openings of said lubricant reservoirs to contact with the rolling elements in the raceway zone to supply lubricant on the rolling elements continuously. There are passages or tubes, having lubricating string inside, connecting the extending lubricant reservoirs. Two reinforce plates, each having two extending plates folded and stretched to the bottom of the two leg portions of the rigid body, and are attached on two end caps.

Abstract: A linear guide device comprises a rail, at least a slide member and multiple rows of rolling elements. The slide member comprises a rigid body; a bottom frame; a pair of end caps and a pair of reinforce plates. The rail and rigid body provide multiple rows of raceways opposed for the rolling elements. The bottom frame contains a plurality of lubricant reservoirs with lubrication pads inside and directly outstretch from the openings of said lubricant reservoirs to contact with the rolling elements in the raceway zone to supply lubricant on the rolling elements continuously. There are passages or tubes, having lubricating string inside, connecting the extending lubricant reservoirs. Two reinforce plates, each having two extending plates folded and stretched to the bottom of the two leg portions of the rigid body, and are attached on two end caps.

Abstract: A ball chain comprises a sequence of balls and an longitudinally elongated spacing chain having a sequence of holes thereon for receiving the balls. The spacing chain further includes a sequence of spacers interposed between the balls whereby the balls will be separated to each other, at least two longitudinally extended flexible strip and a plurality of transverse flexible connecting beam whose two ends respectively are connected to the longitudinal flexible strip, whereby the spacers attach to said connecting beam through an elastic member. The spacers can accordingly deflect and twist freely and the transverse flexible connecting beam can keep as long as possible and provide the best flexibility for being bent in various directions. Therefore, the ball chain can run in a three-dimensionally direction-change recirculation channel smoothly and with low resistance.

Abstract: The object of this invention is to provide a safety pneumatic tire for the bicyclist. The new safety pneumatic tire comprises an improved outer cover (or tire) and an improved inner tube. The improved inner tube is incorporated inside the improved tire and both are mounted on a tubeless rim (rather than a traditional rim). A) The improved tire consists of an elastomeric material coating that is applied to the beads of the tire to obtain an elastic property. The elastomeric-covered beads and the tubeless rim naturely join closely to form a completely sealed chamber between the tire and the tubeless rim. B) The improved inner tube consists of an elastic rubber part that is added to the outer base of the air valve body or is added to the entire outer body of the air valve to form an air tight seal with the rim valve opening.

Abstract: A method for forming dresser of chemical mechanical polishing pad, firstly to make a stainless steel bottom seat. Then preparing metal welding powder and organic glue, mixing the aforesaid metal welding powder, organic glue and adequate ratio of water to welding thick liquid and uniformly distributing or pasting it on the aforesaid dresser bottom seat to form the sintering layer. The aforesaid metal welding material includes the active metal with diamond can form metal carbonate. Then using the computer visual inspection system to proceed the diamond powder distribution, uniformly distributing them for 60 to 2500 grains per square centimeter. Proceeding the sintering process to make the friction layer of chemical mechanical polishing pad dresser.

Abstract: A linear motion guide device includes a rail, a slider and a plurality of rolling elements. Two identical injection molded side frames having two end-plates with convex half-roundness on both ends of a longitudinal arranged profiled member with the same length as steel body, are bilaterally attached to the outside of the elongation of the steel body and the steel body is longitudinally situates inside and attached to the endplate. At least one return passage of the rolling elements is provided outside of the elongation of the steel body. A pair of end caps with concave half-roundness and end seals is externally attached to the endplates. The steel body, the side frames, and the end caps having means for attachment are therefore properly positioned to each other. A compact sealing design is also provided.