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JP3629300B2 |
PURPOSE: To provide a rolling/sliding part made of inexpensive ceramics. CONSTITUTION: This rolling/sliding part such as a roller 3 of a rocker arm 1 or a roller of a ball bearing is obtained by using a sintered compact made by sintering...
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JP3618690B2 |
To prevent induction-hardening of a journal part, and concentrated heating of a cam. Cams WA1 and WA2 of a cam shaft having an intake side cam WA1 and an exhaust side cam WA2 of different phase from each other are hardened. A cam shaft h...
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JP3618977B2 |
To improve the maximum load ability of a tappet (roller) by eliminating the concentration of damage to a material, represented by equivalent stress or the maximum shearing stress. The change of a cam shaft 15 in a direction in a contact ...
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JP2005030569A |
To provide an inexpensive cam follower having a longer life by preventing wear or life deterioration due to the mixture of non-soluble components including sulfuric acid ions, nitric acid ions and soot.The cam follower 1 uses a roller sh...
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JP2005016471A |
To provide an injection pump with sufficient durability performance, for providing diesel engine output equal to that of a conventional case where light oil is used as fuel, in a DME fuel supply system of a diesel engine.A cam profile of...
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JP2005009597A |
To provide a cam mechanism capable of easily realizing the fine amplitude operation and easily controlling a response curve.This cam mechanism indicates the non-linear behavior caused by the generation of the difference in deflection by ...
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JP2005009451A |
To provide a valve opening and closing device which secures a tappet clearance, and moreover stabilizes a position of a rocker arm to a cam.The valve opening and closing device is provided with the rocker arm 10 having a spherical shaft ...
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JP2005003060A |
To stably caulk and fix a supporting shaft 5c having a smaller diameter, at both ends to a pair of supporting wall portions 4c, 4c at lower costs.Center holes 24, 24 are opened to both end faces of the supporting shaft 5c. Steel balls 28...
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JP2004353824A |
To prevent the enlargement as a whole by increasing the differential limiting force in high-speed rotation of a torque-response type limit slip differential.This differential device is provided with frictional engagement faces 21, 23, 45...
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JP3601420B2 |
To provide a forming method for an overhanging part by means of a hydroform process capable of forming a shoulder having a small-curvature diameter at the overhanging part, increasing an overhanging height without unnecessarily raising a...
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JP3599700B2 |
To provide a double hinged door opening/closing mechanism having an improved convenience in use and reduced cost. Cam mechanisms are provided on the sides of a body 1 and a door 2 and a hinge pin 28 is locked to one end of a hinge groove...
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JP2004340168A |
To provide a rolling bearing and a swinging cam mechanism capable of offering a follower roller hard to wear unevenly even if it is used in a swinging cam or a swinging arm.The rolling bearing is equipped with an outer ring 34a installed...
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JP2004340237A |
To provide a mechanism component made of resin excellent in the noise prevention, dynamic properties, dimensional accuracy, and electrostatic charge preventing performance, in particular excellent in the friction coefficient, high temper...
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JP2004324453A |
To provide an assembly camshaft without being seized for a cam piece and a cam follower even when "pressure from below" phenomenon arises.The camshaft comprising of a shaft and the cam piece imposed in the shaft forms a cavity at a bound...
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JP2004308828A |
To reduce the torque of a cam follower without increasing the number of parts items.This cam follower is provided with a barrel 2 having a pair of side walls 3 and 4 opposite to each other with a space, a support shaft 5 stretched betwee...
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JP3585208B2 |
To provide a hollow integrated type cam shaft, which is excellent in productivity, strength, and durability and can be lightened in weight, by providing a cam part, swelled from the outer circumference part of a single tube body or provi...
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JP2004301317A |
To simplify a manufacturing process by substantially reducing friction between sliding members that slide with each other through lubricant.It has a face 1 that a minute recess 2 is distributed and the face slides with a mating material ...
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JP2004293632A |
To provide an inexpensive rolling bearing that can be used stably for a long time even in applications where lubrication conditions are strict, or bending stress operates.An inner ring 5 and an outer ring 6 of the rolling bearing 1 built...
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JP2004293621A |
To decrease torque of a cam follower by reducing friction between the end surface of a roller in an axial direction and the inner surface of a side wall without increasing the number of parts.The cam follower has a body 2 with a pair of ...
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JP2004293638A |
To decrease torque of a roller 4 in a cam follower 1.The roller 4 is rotatably attached to the outer diameter of a spindle 3 laid relative to through-holes 12A, 12B of a pair of side walls 6, 7 of a body 2. The outer diameter of at least...
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JP3580100B2 |
To reduce vibration and noise and ensure durability by preventing respective center shafts of a hollow shaft and a gear from not matching with each other. In a condition in which a gear 3 is fitted around an end part of a hollow shaft 2 ...
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JP2004285929A |
To provide a valve gear of an internal combustion engine having a cam and a cam follower that have improved scuffing resistance and wear resistance and slide by sliding contact each other.In the valve gear 1 of an internal combustion eng...
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JP2004285955A |
To provide a cam shaft capable of restraining cost increases while maintaining high strength.This camshaft is assembled by integrally casting a cam-shaped cam frame having a top protruding from a base circle and a short spindle protrudin...
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JP3576101B2 |
To easily switch a rotation direction of a portable power tool such as an air drill and securely stop the tool when abnormality occurs during work. A tool handle includes a first interlocking mechanism 40 for interlocking an operation gr...
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JP2004278528A |
To provide a cam follower with a roller of an engine having a longer operating life.The cam follower with the roller is equipped with a roller 4 brought into rolling contact with a cam shaft 6 of the engine, a roller shaft 2 which is pos...
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JP2004261890A |
To eliminate jig replacement with a change of kind, and to remarkably shorten the switching time, in regard to a variable pitch work supply unit for supplying a fixing member to a fixing part opened in a work.In a hand formed of an arm 1...
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JP2004263584A |
To provide a cam follower with long operating life having a roller shaft securing sufficient abrasion resistance and durability by nitriding treatment.In the cam follower, a roller 9 having a track in an inner circumferential face thereo...
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JP2004261955A |
To unify surface roughness of a working surface when lapping a work having an arc-shaped working surface of non-circular section such as a cam lobe part.A lapping device 1 comprises a lapping film 11, a shoe 21, a shoe pressing unit 30 w...
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JP2004257498A |
To provide a cam follower capable of suppressing vibrations and enhancing acoustic aspect at a low cost.The cam follower comprises a thick-walled cylindrical outer ring 1 having an outer track 1a on the inner circumference, a stud 2 havi...
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JP2004257286A |
To prevent a specific pressure from being raised locally in a contact part between the peripheral face of a tappet roller 6a and an peripheral face of a not shown cam by parts corresponding to a pair of continuous parts 18, 18 of a cylin...
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JP3565746B2 |
To provide a fluid pump suitable for a fuel high pressure injection pump of a diesel engine by preventing abnormal wear or seizure in a sliding part between the cam and the plunger. In this fluid pump with a plunger operated by a cam mec...
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JP3566650B2 |
An assisting apparatus (14) for using power from a rotating member to assist an operation of a bicycle transmission comprising: a mounting member (300); a cam member (304) for rotation around a cam axis, wherein the cam member (304) has ...
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JP2004243453A |
To provide a cam shaft restraining an increase in man-hour and cost due to an increase in process, keeping the surface roughness of a cam face of a cam piece uniform, and restraining a lag in the opening and closing timing of an intake a...
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JP2004526914A |
The invention relates to a method for assembling a camshaft by using a shaft ( 10 ) and a plurality of cams ( 21-26 ) comprising respectively an opening for the shaft. According to the invention, the cams are disposed in a tight manner i...
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JP2004232612A |
To provide a camshaft capable of restricting deterioration of seating force of a valve due to vibration of a base circular part of a cam.This camshaft 25 is provided with a shaft part 27 to connect journal parts 26 adjoining each other, ...
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JP3554273B2 |
A method and apparatus for producing a shaft from a piece of tubing having at least one bulging portion. The method enables shafts with bulging portions to be cheaply and practicably produced. The piece of tubing bears radially against a...
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JP3555844B2 |
To provide a sliding member having a low friction coefficient and excellent in wear resistance by making it into the one whose solid lubricity effectively functions even in lubricating oil. As to a hard carbon film sliding member 1 the s...
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JP2004225551A |
To solve the problem wherein there is no rocker arm for absorbing misalignment by taking into consideration a crowning quantity of a roller, a head, the effective length of the roller and radial clearance though there is a technology for...
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JP3551005B2 |
To improve durability and reliability of a camshaft by forming cams from different materials in accordance with their respective forms of contact. Three cams having different valve lifts and active angles per cylinder are mounted to a ca...
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JP2004211748A |
To provide a cam to be fixed to a shaft portion to which a clutch is attached, preventing the unusual sounds of the clutch even when dispersion occurs in a rotation stop position.A first circumferential portion 101 having a radius Ra and...
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JP3546938B2 |
To prevent the occurrence of damage such as a chip in a shaft directional end part of a cam surface by arranging a projecting pressure contact object piece part deflectively deformable when a mating member such as a tappet contacts from ...
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JP3546924B2 |
To provide a cam shaft which can eliminate the necessity of the step of forming a groove for fitting a snap ring, the necessity of a separate spring guide pin for a gear part 4, and the necessity of the step of press-fitting the guide pi...
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JP2004204896A |
To solve a problem that there is no technology with which friction at a bearing part is reduced by specifying a crowning amount of a roller but that there is a technology with which the rotation at misalignment of a roller tappet is prev...
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JP3542160B2 |
PURPOSE: To provide sufficient wear resistance and scuffing resistance for the cam shaft for high bearing pressure engine by using the cast iron added by the specified elements to form the chilled carbide on the sliding surface of a cam ...
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JP3541730B2 |
To prevent uneven abrasion of a valve lifter end face by enlarging the offset amount from the axis of the valve lifter to the center of width along a rotating axis in a region of a rotary cam with the maximum lift amount more than a regi...
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JP2004183666A |
To increase response to actuation by reducing leakage of hydraulic oil by preventing deformation of a cylindrical housing.The cylindrical housing 8, having a sprocket part 3 at the outer periphery and a partition wall 12 projected at the...
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JP2004183589A |
To provide long-service-life structure, by suppressing abrasion of an outer circumferential face of an intermediate part of a roller support shaft 9 even in lubricating environment using lubricating oil into which insoluble components su...
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JP2004183744A |
To inhibit the increase of rotating resistance of an outer ring.This roller follower includes a pair of side walls 4, 4 opposite to each other, a spindle 6 fixed in a state of being bridged over a pair of side walls, an inner ring 8 fitt...
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JP2004183672A |
To provide a rolling sliding component capable of reducing sliding resistance even though surface roughness of a contact face with a counter-member is large and controlling generation of defects on the surface such as peeling damage for ...
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JP2004183802A |
To provide a needle roller bearing capable of restricting heat treatment deformation while securing prescribed hardness.Steel material for forming at least one of an inner ring 2, an outer ring 4, and a needle roller 3 is quenched and ha...
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