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73results about How to "Reduce tightening force" patented technology

Housing Fastening Method

An object of the present invention is to provide, by contriving a housing structure, a housing fastening method and turbocharger capable of keeping down a reduction in fastening force applied by a G-coupling even when housings are exposed to high temperature.The present invention provides a turbocharger comprising a turbine 1 including a bladed rotor 1a rotated by a fluid supplied thereto, a compressor 2 including an impeller 2a for drawing in air, connected with the bladed rotor 1a by a rotating shaft 3a, a turbine housing 1b constituting an outer shape of the turbine 1, and a bearing housing 3 rotatably supporting the rotating shaft 3a, a projecting portion 3b of the bearing housing 3 being inserted in a recessed portion 1c of the turbine housing 1b such that an end face 3c of the projecting portion 3b butts against a step portion 1d of the recessed portion 1c serving as a stopper face, a flange portion 1e around the recessed portion 1c and a flange portion 3d around the projecting portion 3b being fastened together by an annular fastener positioned outside, wherein the shapes of the recessed portion 1c and the projecting portion 3b are determined by regulating the axial position of the stopper face of the step portion 1d.
Owner:IHI CORP

Foreskin loop cutter

ActiveCN1919152ANo painNo unnecessary troubleSurgeryForeskinEngineering
Owner:WUHU SHANGRING TECH CO LTD

Link-and-pin fixing structure for a crawler chain

A fitting space having an annular opening, in which an elastic ring whose diameter of a section is D is to be fitted, is formed between a pin-press-fit hole of a link and an exposed end portion of a pin. A link inner wall face and a pin outer peripheral face in the fitting space are formed with tapered faces whose diameters decrease as they go toward an inmost of the fitting space at angles alpha and beta (alpha> beta) with respect to the axial line of the pin, respectively. The elastic ring contacts with the respective tapered faces in the fitting space at the angles alpha and beta with respect to a perpendicular passing a center of its section. Dimensions d1 and d2 between contact points at the respective tapered faces and a horizontal line passing the center of the section of the elastic ring, the diameter D of the section of the elastic ring, and the angles alpha and beta have a relation of alpha> beta, D> d1+ d2 (where d1=D / 2. cos alpha, d2= D / 2.cos beta). Therefore, the links and the pin can be connected to each other securely and firmly with a sufficient holding force to the pin in the axial direction. Thus, assembly of the links and the pin can be carried out easily at a low cost.
Owner:KOMATSU LTD

Method of manufacturing a spherical bearing

Provided is a method of manufacturing a spherical bearing having an inside member with a metal ball portion and an outside member having a ball support portion enclosing and supporting the ball portion of the inside member and connected to the inside member swingably or rotatably relative to each other, including the steps of performing injection molding in which the ball portion of the inside member is inserted as a core in a mold to mold a resin liner covering the ball portion, molding the outside member covering the resin liner by a casting in which the ball portion and the resin liner are inserted as a core in the mold, and after the completion of the casting, and heating the resin liner covering the ball portion through the ball portion of the inside member.
Owner:THK CO LTD

Suture sleeve and a method for manufacturing a suture sleeve

A suture sleeve for securing a medical implantable lead in position in relation to a human or animal body, has a tubular body of a resilient material defining a through bore in the longitudinal direction of the suture sleeve and being formed with one or more longitudinal spaced, circumferential suture grooves on the outside and two or more grip enhancing projections around the inner circumference of the through bore in at least an area radially inward of a suture groove. The suture sleeve is formed with two or more stiffening protuberances in the bottom along the circumference of the suture groove such that the bottom of the suture groove deviates from circular as seen in cross section. The, stiffening protuberances are positioned radially outside of the respective grip enhancing projections on the inside. A method for manufacturing such a suture sleeve is also described.
Owner:ST JUDE MEDICAL

Metal gasket

The present invention provides a metal gasket to be fitted between a cylinder head and a cylinder block to seal a gap between the surfaces thereof, which comprises: a thin metal plate with an opening formed at a position corresponding to a bore portion of the cylinder block, the opening having a diameter larger than that of the bore portion; and a pair of elastic metal substrates each having: an opening which substantially agrees with the bore portion of the cylinder block; an annular convex portion formed concentrically with the opening at a position apart from an edge portion of the opening by a specified distance; and an annular holding portion for holding a peripheral portion of the opening of the thin metal plate, horizontally extending out from an outer edge portion of the convex portion, wherein the pair of the elastic metal substrates are disposed so that top portions of the respective convex portions face each other and that the holding portions overlap with the thin metal plate, and engaged to the thin metal plate at a plurality of positions.
Owner:NICHIAS CORP

Resin Composite Fuel Hose

A resin composite fuel hose of a multilayer construction includes a resin layer as a barrier layer having a fuel permeation resistance, an inner rubber layer as an inner surface layer laminated on an inner side of the resin layer and an outer rubber layer laminated on an outer side of the resin layer. The outer rubber layer has a rubber hardness degree equal to or greater than that of the inner rubber layer, and the inner rubber layer has a permanent elongation equal to or less than 90%.
Owner:SUMITOMO RIKO CO LTD

Seal member and front fork provided with seal member

A seal member includes an annular fitting part and an annular dust lip. The fitting part fits on an inner circumference of a tubular member. The dust lip extends from the fitting part toward a side opposite from the tubular member such that a diameter of an inner circumference of the dust lip gradually decreases, and a distal end portion of the dust lip slides on an outer circumferential surface of a shaft member. A metal insert includes a reinforcing ring and a reinforcing extension piece. The reinforcing ring stands along the inner circumference of the tubular member. The reinforcing extension piece extends from the reinforcing ring toward a side opposite from the tubular member, and inclines such that a distal end of the reinforcing extension piece approaches the shaft member. The reinforcing ring is arranged in the fitting part, whereas the reinforcing extension piece is arranged in the dust lip.
Owner:KYB CORP

Fastening device

Internally threaded device 10 includes a main body 11 having an internal thread portion 13 and a ring-like seat portion 12 disposed between the main body 11 and a member to be fastened 30. The main body 11 has a convex portion 15 and the ring-like seat portion 12 has a concave portion 16, the convex portion 15 and the concave portion 16 have a spherical zone with a center on an axis line. The radius of the spherical shape is set to allow the convex portion 15 and the concave portion 16 to slide earlier than the internal thread portion 13 when a load is applied between the main part 11 and the member 30 in a direction crossing the axial line L. Externally threaded device 40 and washer device 50 in similar structures prevent loosening of the engaged portion easily.
Owner:OKA KAZUTOMI

Vane ring assembly and compressor and gas turbine including the same

A vane ring assembly, and a compressor and gas turbine including the vane ring assembly, can prevent vibration of vanes and inhibit wear of the vane due to vibration by firmly and tightly fixing the vanes in contact with a ring. The vane ring assembly includes a retaining ring having inner and outer sides extending in a circumferential direction; a plurality of vanes respectively disposed around the inner side of the retaining ring and configured to be fastened to the retaining ring; and a plurality of fixing parts configured to be fastened to a surface of each vane, by passing through the retaining ring to fix the vanes to the inner side of the retaining ring.
Owner:DOOSAN HEAVY IND & CONSTR CO LTD

Control device for vehicle

Provided is a control device for a vehicle including a continuously variable transmission. The control device includes a lock-up clutch, an oil pump, an electric motor, and a device control unit. The lock-up clutch is disposed in a torque converter coupled to the engine and switchable between an engaged state and a released state. The oil pump is driven by the engine and supplies a hydraulic oil to the continuously variable transmission. The electric motor is coupled to the engine and controlled to be in a powering state in which the engine is rotationally driven. The device control unit controls the lock-up clutch to put into the released state and controls the electric motor to put into the powering state if a discharge pressure of the oil pump falls below a threshold value at the time of a vehicle deceleration in which a fuel supply to the engine is cut off.
Owner:SUBARU CORP

Mounting feature for a cable tie

A mounting feature for a cable tie is provided in which the mounting feature has at least one divided retention component. The center-most edges of the at least one divided retention component contact a mating article on the edge of the mating article, such as the threaded portion, decreasing the amount of fastening force required to affix the mounting feature of the cable tie to a mating article while not compromising the optimal amount of required extraction force. A method for affixing the mounting feature to a mating article is also provided.
Owner:AVERY DENNISON CORP

Coreless engine mount and method of manufacturing the same

A coreless engine mount, and a method for manufacturing a coreless engine mount, may include a mount bracket that has at least one bolting hole for bolting and houses a mounting bush, and combines with the mounting bush, and a coreless support bracket that has an extension integrally extending from the mounting bush and is formed of an aluminum material, the extension being integrally formed with the mounting bush by curing, and the extension having at least one bolting hole for bolting.
Owner:HYUNDAI MOTOR CO LTD

Structure for attaching pressure detector

An attachment structure for a pressure detector that is such that the pressure detector is attached in an airtight manner within an insertion hole of an attachment tool main body attached to a mechanical device or pipelines, with a pipe, a gasket presser, a gasket, a split ring, and a bonnet. The configuration is such that the gasket presser and the split ring are inserted into the insertion hole of the attachment tool main body, the bonnet is inserted into the insertion hole, the bonnet is fastened to the attachment tool main body side, the gasket presser and the gasket are pressed by the split ring, and sealing portions are formed between the bottom surface of the insertion hole and one end surface of the gasket and between the tip end surface of the gasket restraint and the other end surface of the gasket.
Owner:COPAL ELECTRON CO LTD +1

Electronic device

A base plate for a circuit board assembly, to which an electronic component is soldered, has a through-hole. A screw hole is formed in a housing, to which the base plate is fixed by screw members. Multiple screw-fixing portions are formed in an electronic device, so that each of the screw members is inserted through each of the through-holes of the base plate and fixed to the housing in each of the screw-fixing portions. Two projections are formed at a first casing of the housing in each of the screw-fixing portions, so that the base plate is in contact with the first casing at two contacting points formed by the projections. The projections are symmetrically formed with respect to a center of the screw hole.
Owner:DENSO CORP

Medical gasket

The present invention aims to provide a gasket which reduces the clamping force required to fit a plunger rod into the gasket, while maintaining a tight fit therebetween. The present invention relates to a medical gasket including a female screw portion to fit a plunger, on the side opposite to a drug contact surface, the female screw portion having roots or crests which gradually increase in diameter from the drug contact surface side toward the opposite plunger side.
Owner:SUMITOMO RUBBER IND LTD

Change tool and change technology for ultra-high-voltage strain insulator string

InactiveCN104682266AMeet the needs of construction maintenanceReduce tightening forceApparatus for overhead lines/cablesUltra high voltagePulley
The invention discloses a change tool for an ultra-high-voltage strain insulator string. The change tool comprises a hanging board connecting fitting, a yoke plate clamping fitting, a pulley assembly and a tightener, wherein the hanging board connecting fitting is used for connecting two strain regulating hanging board mounted on a tower body, the yoke plate clamping fitting is clamped on a strain yoke plate mounted on a circuit, the pulley assembly is connected between the hanging board connecting fitting and the yoke plate clamping fitting, and the tightener provides tightening force for the pulley assembly. The invention further discloses a change technology for the ultra-high-voltage strain insulator string. The technology comprises the following steps: connecting the two strain regulating hanging board mounted on the tower body by the hanging board connecting fitting to provide a first pivot; clamping the yoke plate clamping fitting on the strain yoke plate mounted on the circuit to provide a second pivot; mounting the pulley assembly between the first pivot and the second pivot through the tightener and a rope so as to reduce tightening force. The change tool and the change technology are suitable for changing the insulator string.
Owner:湖北省超能超高压电力科技开发有限公司

Joint structure and boot for joint

InactiveCN101253345AInhibition of peeling phenomenonCause damageYielding couplingConstant-velocity jointBellows
A flexible section (56) is provided between a small-diameter tube section (32) and a bellows section (42) of a boot (28) for a joint, and the flexible section (56) has a greater flexibility than the small-diameter tube section (32). When a spline shaft (24) is displaced so as to incline relative to a constant velocity joint (3), deformation stress acting in the boot (28) is relaxed by allowing the flexible section (56) to deflect (bend). This inhibits the inner wall surface of the small-diameter tube section (32) from separating from the sidewall surface of the spline shaft (24).
Owner:HONDA MOTOR CO LTD

Stator and rotary motor comprising same

The invention provides a stator and a rotary motor comprising the same. The fastening force of the stator will not decrease due to the fatigue of a varnish. The provided stator (1) comprises a stator coil (2) and a stator iron core, which is formed by laminating electromagnetic steel plates. The stator iron core comprises a slot (8) for passing through the stator coil, a varnish arranged between the stator coil and the slot, and a fastening hole (4), which is arranged on the periphery of the stator iron core and is used to fasten the stator and a shell. A riveting part (5) is arranged between the fastening hole of the electromagnetic steel plates of the stator iron core and the slot; and the riveting part fixedly connects the electromagnetic steel plates and prevents the leakage of the varnish to the surrounding of the fastening hole. Specifically, the pivoting part fastens the laminated steel plates and makes the varnish to disperse along the ends of the steel plates in the periphery of the fastening part; or the pivoting part has a linear, hill shaped or arc shaped draw-bore pin between the fastening hole and the slot, and the draw-bore pin extends to the edges of the steel plates.
Owner:HONDA MOTOR CO LTD
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