753results about How to "Easy to twist" patented technology

A first weight portion of a vibration actuator includes an inner-side enlarged portion that protrudes from an end portion of a solid head in a direction of a vibration axis and that is inserted into an opening portion extending within a first compression coil spring along the direction of the vibration axis. An outer peripheral surface of the inner-side enlarged portion becomes continuously smaller in diameter from a base end towards a free end, with the vibration axis being the center of the diameter. That is, the inner-side enlarged portion has the shape of a truncated cone. The inner-side enlarged portion is inserted into the opening portion of the first compression coil spring and the opening portion is utilized to change the length of the inner-side enlarged portion in the direction of the vibration axis, thereby changing the mass of the first weight portion.

The invention provides a wire rod for a galvanized steel wire of a 1770MPa bridge stay cable comprising the following chemical elements (by wt percentage): C, 0.85 to 0.9; Si, 0.12 to 0.32; Mn, 0.6 to 0.9; P, less than or equal to 0.025; S, less than or equal to 0.025; Cr, 0.1 to 0.25; V, less than or equal to 0.06; Cu, less than or equal to 0.1; the rest, inevitable impurity elements. The invention also provides a manufacturing method of the wire rod. The wire rod provided by the invention has the tensile strength Rm of 1300 to 1400 MPa, the elongation after fracture A which is more than or equal to 8 percent, and the contraction of area Z which is more than or equal to 30 percent (after aging, the contraction of area is more than or equal to 35 percent). The galvanized steel wire made of the wire rod can completely meet the technical requirements of the galvanized steel wire of the 1770MPa bridge stay cable, such as fatigue tests of high dynamic load (more than or equal to two million cycle-index), high toughness and high torsion (more than or equal to eleven times), etc.

A twist-collapsible storage box, which includes a soft rectangular box body, a bottom board mounted inside the box body and closely attached to the horizontal bottom wall of the box body, four horizontal rod members respectively fastened to the four vertical sidewalls of the box body in horizontal at the top, and four vertical rod members respectively fastened to the four angles between each two adjacent vertical sidewalls of the box body in vertical and kept spaced from the ends of the horizontal rod members at a gap.

The invention discloses a vascular intervention operation robot guide wire and catheter control device. The device includes a push mechanism, a rotation and twisting mechanism and a control system. The push mechanism comprises a fine adjustment mechanism and a coarse adjustment mechanism; the coarse adjustment mechanism includes two spaced guide tube brackets, a synchronous pulley drive mechanismdisposed between the two guide tube brackets, and first clamping devices driven by the synchronous pulley drive mechanism; the fine adjustment mechanism includes a fixation bracket, a mobile bracket disposed between one guide tube bracket and the fixation bracket, a screw-nut assembly which is fixed on the fixation bracket and can drive the mobile bracket to move back and forth relative to the fixation bracket, and a second clamping device disposed on the mobile bracket; and the rotation and twisting mechanism includes a gear drive mechanism which is disposed on the mobile bracket and is fixedly connected to the second clamping device to drive the second clamping device to rotate. The vascular intervention operation robot guide wire and catheter control device enables the push efficiency and precision of a guide wire and catheter to be improved, enables the connection between a whole system and external devices to be more concise, and has the advantages of easy operation, convenient cleaning and disinfection.

According to the present invention, the main purpose is to provide a skateboard comprising a frame and a pedal. The frame has two opposing ends including a first end and a second end. The frame further has a connecting portion formed between and connected to the first end and the second end. The first end includes at least one guiding portion formed on one side thereof. The pedal is installed to the first end of the frame and including a coupling portion. The pedal has at least one retaining portion formed on one lateral side of the coupling portion and corresponding to the guiding portion. The retaining portion is slidably disposed to the guiding portion. The frame and the first pedal are separately manufactured.

A easy mop allows user to easily squeeze water out of it, meanwhile, saves user's power and keeps hands dry. The easy mop includes: a long handle with an extended arm of force either a bow portion or a handle, a mass of absorbent material, a sleeve with a twisting handle or a metal bar instead of the sleeve and twisting handle. While twisting the mop, one hand hole the twisting handle, another hand hold the bow or handle then turn around, the water being easily squeezed out of the mop.

Disclosed is a gas turbine fuel injector and swirler assembly, including: a delivery tube structure arranged on a central axis of the fuel injector and swirler assembly, a first fuel supply channel arranged in the delivery tube structure, a shroud surrounding the delivery tube structure, swirl vanes arranged between the delivery tube structure and the shroud, a radial passage in each swirl vane, communicating with the first fuel supply channel, a set of apertures open between the radial passage and the exterior surface of said each swirl vane, wherein a second fuel supply channel is arranged in the delivery tube structure extending to a downstream end of the delivery tube structure and a mixer with lobes for fuel injection is arranged at the downstream end. Further disclosed is an assembly method for assembling a fuel injector and swirler assembly.

A drive mechanism for an industrial robot arm, having a simple drive system, in which an extracting part of an umbilical member for a work tool is suitably positioned and a device for the work tool is positioned on the forearm so as not to project out, while the basic configuration of the robot arm may be similar to the prior art. A motor for a first wrist element is positioned in the area between a forearm and an upper arm such that the rotation axis of the motor is perpendicular to a second axis. Further, the motor is positioned at the point shifted toward the wrist element or a front end of the forearm, in relation to a first axis, along the longitudinal direction of the forearm. Therefore, a wide area for a wire feeder may be obtained above a bottom portion of the forearm.

The size of a light emitting device is reduced. The light emitting device for flash photography includes: a luminescent xenon tube; IGBT for the discharge switch of the xenon tube; a capacitor for discharging the xenon tube; and MOSFET for the charge switch of the capacitor. A semiconductor device used in this light emitting device is obtained by sealing the following in a package: a semiconductor chip in which the IGBT is formed; a semiconductor chip in which the MOSFET is formed; a semiconductor chip in which a drive circuit of the IGBT and a control circuit of the MOSFET are formed; and multiple leads coupled thereto.

The tiltable-body apparatus including a frame member, a tiltable body, and a pair of torsion springs having a twisting longitudinal axis. The torsion springs are disposed along the twisting longitudinal-axis opposingly with the tiltable body being interposed, support the tiltable body flexibly and rotatably about the twisting longitudinal axis relative to the frame member, and include a plurality of planar portions, compliant directions of which intersect each other when viewed along a direction of the twisting longitudinal axis. A center of gravity of the tiltable body is positioned on the twisting longitudinal axis of the torsion springs.

The invention discloses a computer case with integrated functions of dust prevention and shock prevention. The computer case comprises a case body, the right surface of the inner wall of the case bodyis fixedly connected with the upper surface of a bearing rod through a fixing rod, the lower surface of the bearing rod is fixedly connected with a machine body of a motor, and fan blades are fixedlyconnected to the surface of a motor output shaft. According to the computer case with integrated functions of dust prevention and shock prevention, the case body, the motor, the fan blades, a fixingplate, a second protection net, a first rotation device, a threaded column, a second threaded cylinder, a first spring and a second spring are arranged, by using the elastic effect of the firs springand the second spring, the impact force which is generated when the case body moves downwards can be buffered, vibration of elements in the case body can be effectively avoided, and people can use thecomputer case more conveniently; meanwhile, the service life of the elements in the case body is guaranteed, dust can be effectively prevented from entering the case body by using the second protection net, accordingly, the heat dissipation effect of the elements is guaranteed, and a host can be better used.

A flexible abrasion resistant omnidirectionally reflective rope has a central braided high strength core comprising gel fiber or p-aramid fibers that is surrounded by cylindrically braided sleeve of reflective strips composed of narrow width reflective strips that comprise a woven or knitted narrow width strip and a flexible nylon retroreflective sheet sewn thereon and covered with abrasion resistant coating. The flexible retroreflective sheet is formed by thermally bonding corner cube, microsphere retroreflectors, or wide angle exposed retroreflective lenses to a flexible polymeric sheet. Due to its braided construction, the reflective rope reflects light omnidirectionally over a large angle of acceptance, thereby providing an improved measure of safety in the marine craft environment. The reflected light beam provides accurate illumination of the marine craft gunnels, sail edges, mooring lines, railings and the like when the omnidirectionally reflective rope is used during dusk, fog or nighttime hours.

Lighting system mountable on a surface and including one or more miniature light sources and a multi-part housing including recesses for accepting the light sources and an electrical supply line. The light sources can include light emitting diodes. Separate parts of the housing are mated in a manner to fix the position of the electrical supply line between them, and may be formed with a recess that receives an asymmetrically shaped electrical supply line in only one possible orientation. Similarly, the recesses receiving the light sources may be shaped such that electrical connections with proper polarity are assured. Either or both parts of the housing may be fastened to the surface with adhesives and/or optional holes for receiving pins, nails, screws, bolts or the like. The lighting system is particularly suitable for emergency, railing, landscape and vehicle illumination applications, and may be powered by batteries and renewable energy sources.

Readily bendable and twistable rolling conveyor guides are provided. The guides include axle-positioning members that slidably engage channels of a structural support member. A plurality of axles carrying rotatable elements and spacers are disposed between the axle-positioning members. Certain embodiments include notches in the axle-positioning members. Certain other embodiments include unique cross-sections at the exterior of the channels. Advantageously, the assembled guides may be bent without causing distortion of the channels or interference between the axle-positioning members and the channels. In certain other embodiments, the support structures of the guides are constructed of flexible materials. The guides are thus readily twistable about longitudinal axes thereof.

To prevent damage to a printed circuit board due to concentration of contact pressure during press-fitting of press-fit contacts into through-holes of the board with narrow pitches, a press-fit contact includes a bulge portion formed wide substantially at a center in a long direction thereof, a press-fit portion extending from one end of the bulge portion and projecting in an arc in a width direction of the press-fit contact, a contact portion extending from other end of the bulge portion, and an introduction portion extending from a distal end of the press-fit portion, wherein a center portion of the press-fit portion in the long direction thereof, when adjacent press-fit contacts are provided in alignment with a line, having a direction of expansion that is not parallel to the line but is angled so as to be rotated about an axis of the center portion at a predetermined angle.

A method of producing a high quality of yarn by an iron-heating apparatus, including the steps of: guiding a yarn to pass between upper and lower rollers, wherein the yarn is exited at a front nip in a twisting triangle area; guiding the yarn to enter to a groove of a heating main body of the iron-heating apparatus; heating the yarn along the groove to reduce a rigidity of the yarn so as to allow the yarn to be easily twisted to form an improved yarn with high quality; and enwrapping the improved yarn on a spun yarn tube. In addition, a counter frictional force is applied at the yarn through walls of the groove such that fiber on a surface of the yarn is further twisted to the yarn for minimizing hairiness.