236results about How to "Reduced dimensional accuracy requirements" patented technology

A container closure formed from a synthetic resin as a single unit has a circular top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. An outer cylindrical sealing protrusion, inner cylindrical sealing protrusion and annular sealing ridge arranged therebetween, all having a predetermined shape and a predetermined size, are formed on the inner surface of the top panel wall. The thickness of the center portion of the top panel wall is reduced to a predetermined range and a plurality of ribs having a predetermined thickness are formed on the inner surface of the center portion of the top panel wall.

A cutting insert having a front cutting edge and a connecting surface including male- and / or female-like engagement portions, in order to rigidly secure the cutting insert, a geometrically predetermined reference locus serving as a force-application spot for the clamping of the cutting insert. Simultaneously active engagement portions are of only two types—a first, elongate engagement portion, which is located between the front cutting edge and the reference locus, and a second, elongate engagement means, which is oriented at an angle to the first engagement portion and situated at a greater distance from the front cutting edge than the reference locus. In such a way, it is guaranteed that a tightening force always is applied to the cutting insert in a substantially triangular area, which is defined by the free ends of the engagement portions. Furthermore, a tool for chip removing machining, as well as an attachment, e.g., a shim plate, for such tools is provided.

A container closure formed from a synthetic resin as a single unit has a circular top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. An outer cylindrical sealing protrusion, an inner cylindrical sealing protrusion, and annular sealing ridge, all having a predetermined shape and a predetermined size, are formed on the inner surface of the top panel wall. In one embodiment, the thickness of the center portion of the top panel wall is reduced to a predetermined range and a plurality of ribs having a predetermined thickness are formed on the inner surface of the center portion of the top panel wall.

A container closure formed from a synthetic resin as a single unit has a circular top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall. An outer cylindrical sealing protrusion, an inner cylindrical sealing protrusion, and annular sealing ridge, all having a predetermined shape and a predetermined size, are formed on the inner surface of the top panel wall. In one embodiment, the thickness of the center portion of the top panel wall is reduced to a predetermined range and a plurality of ribs having a predetermined thickness are formed on the inner surface of the center portion of the top panel wall.

A cutting insert having a front cutting edge and a connecting surface including male- and / or female-like engagement portions, in order to rigidly secure the cutting insert, a geometrically predetermined reference locus serving as a force-application spot for the clamping of the cutting insert. Simultaneously active engagement portions are of only two types—a first, elongate engagement portion, which is located between the front cutting edge and the reference locus, and a second, elongate engagement means, which is oriented at an angle to the first engagement portion and situated at a greater distance from the front cutting edge than the reference locus. In such a way, it is guaranteed that a tightening force always is applied to the cutting insert in a substantially triangular area, which is defined by the free ends of the engagement portions. Furthermore, a tool for chip removing machining, as well as an attachment, e.g., a shim plate, for such tools is provided.

The method of manufacturing a liquid ejection head comprises the steps of: forming a plurality of piezoelectric elements on a diaphragm; stacking an intermediate plate which includes recess sections for covering the piezoelectric elements and drive wires connected to the piezoelectric elements, on a surface of the diaphragm on which the piezoelectric elements are formed, in such a manner that peripheral spaces are formed around the piezoelectric elements by means of the recess sections and electrical connections are created between the drive wires and the piezoelectric elements; connecting an integrated circuit to end sections of the drive wires which are opposite to connection sections between the drive wires and the piezoelectric elements; forming an actuator function unit by electrically and mechanically bonding the diaphragm, the piezoelectric elements, the drive wires, the intermediate plate and the integrated circuit after the formation of the piezoelectric elements on the diaphragm, the stack of the intermediate plate on the diaphragm, and the connection of the integrated circuit and the drive wires, in such a manner that the piezoelectric elements are electrically driven via the integrated circuit; measuring displacement of the diaphragm by operating the integrated circuit in the actuator function unit; and bonding a flow path forming member to the actuator function unit after the measurement of the displacement of the diaphragm, the flow path forming member being provided for forming a plurality of pressure chambers connected to a plurality of nozzles and forming a common liquid chamber for storing liquid supplied to the pressure chambers.

It is an object of the present invention to provide a wiring board having high-density wiring with a controlled shape without masking by a resist film and a production method thereof. In the present invention, the production method of a wiring board having copper wiring on an insulating substrate includes the steps of forming a metal seed layer on the insulating substrate, the metal seed layer having a roughened shape in a portion on which the copper wiring or a bump is to be formed, and forming an electroplated film of copper or an alloy of copper through electroplating on the portion of the metal seed layer having the roughened shape. A substance for suppressing the plating reaction is added to a plating bath to provide an angle of 90 degrees or smaller between a surface of the insulating substrate and a side of the electroplated film.

The invention relates to the technical field of glass accessories mounting, and particularly relates to a frock device used for mounting glazing tapes and a method of the frock device. The device comprises a sucker device, a mandril device, a lateral positioning device, a longitudinal positioning device, a glazing tape fixing block, a glazing tape pressing block and a pressing block lifting device, wherein the glazing tape fixing block is provided with a locating groove corresponding to the glazing tape in shape; a vacuum hole which is communicated with a gas-type fitting at the side surface of the glazing tape fixing block is formed in the locating groove; and the device is characterized in that the glazing tape fixing block is internally provided with a heating device. The surfaces to be bonded of the glass and the glazing tape are coated with the same first coat, according to the frock device, the glazing tape and the glass are firmly bonded through the first coats under certain temperature and pressure control. The frock device has the advantages of being simple in structure, low in cost, simple in bonding process and good in bond performance, and having low requirements on glass dimensional precision and high yield.

Methods of forming a tapered evanescent coupling region for use with a relatively thin silicon optical waveguide formed with, for example, an SOI structure. A tapered evanescent coupling region is formed in a silicon substrate that is used as a coupling substrate, the coupling substrate thereafter joined to the SOI structure. A gray-scale photolithography process is used to define a tapered region in photoresist, the tapered pattern thereafter transferred into the silicon substrate. A material exhibiting a lower refractive index than the silicon optical waveguide layer (e.g., silicon dioxide) is then used to fill the tapered opening in the substrate. Advantageously, conventional silicon processing steps may be used to form coupling facets in the silicon substrate (i.e., angled surfaces, V-grooves) in an appropriate relation to the tapered evanescent coupling region. The coupling facets may be formed contiguous with the tapered evanescent coupling region, or formed through the opposing side of the silicon substrate.

The embodiment of the invention discloses a dielectric resonator and a cover plate unit thereof. The dielectric resonator comprises a cavity body, a cover plate unit and a dielectric resonant post, wherein the cover plate unit covers the cavity body to form a resonant cavity; the dielectric resonant post is arranged in the resonant cavity, and the lower end of the dielectric resonant post is contacted with the cavity body; the cover plate unit comprises an upper cover plate, a lower cover plate which is arranged below the upper cover plate, and an elastic component which is arranged between the upper cover plate and the lower cover plate; and the lower cover plate is stressed through deformation of the elastic component, so that the lower cover plate is tightly contacted with the upper end of the dielectric resonant post. Besides, the embodiment of the invention also discloses a dielectric filer and communication equipment using the same. By using the dielectric resonator, performance indexes of the communication equipment and the dielectric filer thereof can be optimized to a large extent.

An electric motor (1) including a stator (2), a rotor (3) having a field permanent magnet (6), a terminal block (21) fixed on the stator, and a magnetism detecting circuit for detecting magnetism of the field permanent magnet thereby to detect a rotational position of the rotor. The magnetism detecting circuit includes a circuit board (22) arranged on the terminal block, and a rotation sensor (30) mounted on the circuit board such that it is mounted in a sensor case (33). The sensor case (33) is so constituted as to position the rotation sensor (30) on he terminal block when the circuit board (22) is arranged on the terminal block.

The invention relates to a micromachining process, and particularly relates to a biological micro-electric mechanic system. The invention provides a split type micro-electric mechanic system and a preparation method thereof. The split type micro-electric mechanic system comprises separate polymer microfluidic chips on the structure and a functional base, wherein, the functional base has the advantages of stable structure, reliable performance and repeat application by adopting the process technology of the high-precision silicon-based micro-electric mechanic system; and the microfluidic chips have the advantages of extremely low cost and disposable application by adopting the micro process technology of the high-flux polymer. Therefore, the micromachining process can be applied under different situations, and is particularly suitable for the design of the low-cost, rapid, multifunctional integrated and portable clinical biological micro-electric mechanic system.

An adjustable steering apparatus includes: a movable bracket to which a steering jacket including a steering wheel is fixed and to which a movable telescopic member having a tooth portion is fixedly mounted; a stationary bracket which is disposed externally of the movable bracket and fixed to a vehicle body, and to which a stationary tilt member having a tooth portion is fixedly mounted; a movable tilt member having a tooth portion meshingly engageable with the tooth portion of the stationary tilt member; and a stationary telescopic member having a tooth portion meshingly engageable with the tooth portion of the movable telescopic member. An elastic body for release from meshing engagement is disposed on an outer side of the stationary bracket, the elastic body being capable of urging the movable tilt member away from the stationary tilt member. The movable tilt member is engageable with the stationary telescopic member in order that the movable tilt member being disengaged from the stationary tilt member can bring the stationary telescopic member out of engagement with the movable telescopic member.

The invention discloses a solid insulating bus connector which comprises a T-shaped insulating sleeve, an insulating rubber sheath, a conducting rod and a plug, wherein an electrified conductor is embedded in the T-shaped insulating sleeve. By arranging a through hole on one end of the electrified conductor in the T-shaped insulating sleeve, arranging a spring contact finger in the through hole of the electrified conductor and using the flexibility of the insulating rubber sheath, cabinet bodies can be firstly spliced, and then, buses can be connected. The dimensional accuracy and installation requirements for gas switch cabinets are reduced, installation deviation occurring in cabinet splicing can be effectively and adaptively compensated and adjusted, cabinet splicing is simple, buses are connected conveniently and reliably, and the insulating performance is good.

A bending apparatus for manufacturing a bent member from a steel pipe with high dimensional accuracy and high productivity can be installed in a small space with good maintainability. The apparatus has a feed mechanism for feeding a steel pipe in its lengthwise direction, a first support mechanism for supporting the steel pipe while feeding it, a heating mechanism for heating a part or all of the steel pipe being fed, a cooling mechanism for cooling the portion of the heated steel pipe being fed, a second support mechanism for imparting a bending moment to the heated portion of the steel pipe to bend the steel pipe into a desired shape by moving two-dimensionally or three-dimensionally while supporting the fed steel pipe in at least one location, and a deformation preventing mechanism for preventing deformation of the steel pipe. The feed mechanism is a vertically articulated robot having seven axes.

A workpiece transfer device for machine tools that easily achieves positional adjustment of the rack while suppressing increases in cost and therefore preventing occurrences of vibrations and noise is disclosed. The workpiece transfer device includes a frame member having a rectangular cross-section. The device extends from a workpiece machining position to a workpiece loading / unloading position. A support member is hung on the frame member so as to be movable via a linear guide and which has a workpiece holding mechanism mounted thereon. A drive mechanism for rotationally driving a pinion gear engaged with a rack is provided on the frame member so as to be parallel to the linear guide so that the support member is moved between the two positions. The linear guide is disposed on one wall of the frame member and the rack is disposed on another wall surface so as to have its position adjustable.

An adjustable steering apparatus includes: a movable bracket to which a steering jacket having a steering wheel is fixed and to which a movable telescopic member having a tooth portion is fixedly mounted; a stationary bracket which is disposed externally of the movable bracket and fixed to a vehicle body, and to which a stationary tilt member having a tooth portion is fixedly mounted; a movable tilt member having a tooth portion meshingly engageable with the tooth portion of the stationary tilt member; and a stationary telescopic member having a tooth portion meshingly engageable with the tooth portion of the movable telescopic member. Both the movable tilt member and the stationary tilt member have openings. The tooth portion of the stationary telescopic member is designed to be meshed with the tooth portion of the movable telescopic member as penetrating through the movable tilt member and stationary tilt member.

Masonry units (10) are integrally assembled by tightening forces of bolts (60) and nuts (70), in a condition that interlayer metal plates (50) are interposed between the masonry units. A basic form (11) of the masonry unit is contained in a mold for forming the masonry unit. A space (98) for fluidic covering material, which is chargeable with the covering material, is defined between upper and lower faces of the form (11), and the fluidic covering material is charged in the space. The upper and lower faces of the masonry unit are covered with the solidified covering material (12). According to the present invention, high dimensional accuracy of the masonry unit can be ensured, and efficiency of the production process of the masonry units is promoted to improve productivity of the masonry units.

A dry etching equipment includes a topography simulator and a control section. The topography simulator controls an amount of deposition species incident upon a sidewall to be processed in accordance with a wafer opening ratio and a solid angle of a local pattern, the deposition amount being represented by a product of a reaction product flux and the solid angle. The control section compares a database obtained by the topography simulator with an actual measured value detected from an etching condition during dry etching to calculate a correction value for etching process, and indicates the correction value to an etching chamber in the dry etching equipment. The dry etching equipment corrects in real time a parameter for the etching process conducted in the etching chamber.

An embodiment provided in the invention discloses a dielectric resonator and a cover plate unit, wherein the dielectric resonator comprises a cavity, a cover plate unit and a dielectric resonance column, and the cavity is capped with the cover plate unit to form a resonance cavity; the dielectric resonance column is set in the resonance cavity, a first end of the dielectric resonance column contacts with the cavity; the cover plate unit further comprises an upper cover plate, a lower cover plate set under the upper cover plate and a spacer set between the upper cover plate and the lower cover plate, and the lower cover plate is made to contact with a second end of the dielectric resonance column through mutual squeezing action between the spacer and the lower cover plate. In addition, the embodiment provided in the invention further discloses a dielectric filter and communication equipment using the dielectric filter, and with the dielectric filter, the communication equipment and performance index of the dielectric filter can be optimized to a great extent.

A three-dimensional shaped article production method according to the invention is a method for producing a three-dimensional shaped article by stacking layers formed in a predetermined pattern, wherein a series of steps including a composition supply step of supplying a composition containing a plurality of particles to a predetermined part, and a bonding step of bonding the particles by irradiation with a laser light is performed repeatedly, and the composition supply step includes a step of forming a first region using a first composition containing first particles as the composition, and a step of forming a second region using a second composition containing second particles which are different from the first particles as the composition, and the bonding of the particles in the first region and the bonding of the particles in the second region are performed by irradiation with laser lights with a different spectrum.

A brushless motor may comprise a stator. The stator may comprise a core body comprising a plurality of partial cores and a coil wire. Each partial core may comprise a yoke positioned on an outer edge of the stator, teeth extending towards a rotor from the yoke, and a connector extending to an adjacent partial core from the yoke, to be connected to the yoke of the adjacent partial core. The stator may be formed to be in a tubular state by being transformed from an opened state. Each of the yokes of the partial cores may comprise a facing surface facing the yoke of the adjacent partial core. At least one set of the facing surfaces among a plurality of sets of the facing surfaces facing each other may be disposed with a gap in between in the circumferential direction of the stator.

In a phase shift mask blank comprising a transparent substrate and a phase shift film deposited thereon and having a phase shift of 150-200° with respect to sub-200 nm light, the phase shift film is composed of a silicon base material consisting of silicon, nitrogen and optionally oxygen, has a thickness of up to 70 nm, and provides a warpage change of up to 0.2 μm in a central region of a surface of the substrate before and after the deposition of the phase shift film on the substrate.

The invention discloses a tube expanding device which comprises an expanding head draw bar seat, an expanding connection seat, an expanding head component, a fixing plate and a hydraulic cylinder connecting plate. The tube expanding device is characterized in that the expanding head component comprises a plurality of expanding head draw bars. The upper ends of the expanding head draw bars are arranged on the expanding head draw bar seat. An expanding bar lining sleeve, an elastic expanding sleeve and a guide nut are sequentially sleeved on each expanding draw bar. Each expanding bar lining sleeve is fixed in a through hole in the bottom of the expanding connection seat. The upper portion of the expanding connection seat is connected with a cylinder body of a hydraulic cylinder through the fixing plate. The expanding head draw bar seat is connected with a hydraulic cylinder draw bar through the hydraulic cylinder connecting plate. The tube expanding device for expanding connection of multiple tubes and tube plates is simple in structure, convenient to operate, low in product part size accuracy requirement, high in production efficiency, capable of conducting one end expanding connection and two end expanding connection and applicable to direct adhering tube expanding technology and pre-expanding technology before welding.

A bending apparatus for manufacturing a bent member from a steel pipe with high dimensional accuracy and high productivity can be installed in a small space with good maintainability. The apparatus has a feed mechanism for feeding a steel pipe in its lengthwise direction, a first support mechanism for supporting the steel pipe while feeding it, a heating mechanism for heating a part or all of the steel pipe being fed, a cooling mechanism for cooling the portion of the heated steel pipe being fed, a second support mechanism for imparting a bending moment to the heated portion of the steel pipe to bend the steel pipe into a desired shape by moving two-dimensionally or three-dimensionally while supporting the fed steel pipe in at least one location, and a deformation preventing mechanism for preventing deformation of the steel pipe. The feed mechanism is a vertically articulated robot having seven axes.

The invention relates to the field of aircraft casing structures and particularly relates to a plug structure for a double-layer casing. The plug structure comprises a plug cover (3) and a plug assembly (11). An inner plug (5) fits to an inner casing (10) through a small gap, an outer plug (9) fits to an outer casing (1) and the plugs and the casings are subjected to tight gas sealing. The inner plug (5) and the outer plug (9) in an assembled state are supported by a spring elastic force and respectively fit to the inner casing (10) and the outer casing (1). The plug structure for the double-layer casing improves the operability of a field worker and has an effective error-proof design in the operation process. The plug structure of the double-layer casing utilizes the inner and outer plugs to realize plugging so that the dimensional precision of the inner and outer casings is reduced. The structural form of the spring supporting the plugs adapts to the complex load conditions of the engine and improves the engine sealing effects and reliability.

A preformed product of a crankshaft is formed in a shape smaller than a shape of a cavity of a separatable die set 1103 composed of an upper die and a lower die and is disposed in the cavity of the die set 1103 as a material M. The cavity of the die set 1103 matches a required shape of the crankshaft. When the material M is disposed in the cavity of the die set 1103, a clearance is formed between the material M and the cavity, and when a side-forming punch 1000P is inserted into the material M, a hollow hole is formed in the material M and the cavity is filled with the material M. As a result, not only can weight saving be achieved by forming the hole in the crankpin of the crankshaft, but also degradation of dimensional accuracy by forming the hole can be avoided.