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- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
- TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
- Transactions of the Japan Society of Mechanical Engineers Series C
- Transactions of the Japan Society of Mechanical Engineers Series B
- Transactions of the Japan Society of Mechanical Engineers Series A
Volume 9 (1943 - 1944･･･
- Issue 37-4 Pages 113-
- Issue 37-3 Pages 53-
- Issue 37-2 Pages 103-
- Issue 37-1 Pages 161-
- Issue 36-4 Pages 89-
- Issue 36-2 Pages 69-
- Issue 36-1 Pages 121-
- Issue 35-4 Pages 27-
- Issue 35-3 Pages 23-
- Issue 35-2 Pages 43-
- Issue 35-1 Pages 33-
- Issue 34-4 Pages 1-
- Issue 34-3 Pages 1-
- Issue 34-2 Pages 1-
- Issue 34-1 Pages 1-
Volume 8 (1942)
- Issue 33-4 Pages 215-
- Issue 33-3 Pages 33-
- Issue 33-2 Pages 63-
- Issue 33-1 Pages 185-
- Issue 32-4 Pages 185-
- Issue 32-3 Pages 21-
- Issue 32-2 Pages 53-
- Issue 32-1 Pages 117-
- Issue 31-4 Pages 101-
- Issue 31-3 Pages 1-
- Issue 31-2 Pages 25-
- Issue 31-1 Pages 43-
- Issue 30-4 Pages 1-
- Issue 30-2 Pages 1-
- Issue 30-1 Pages 1-
Volume 19, Issue 78
Displaying 1-9 of 9 articles from this issue
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Tomeyoshi FUJIMOTO1953 Volume 19 Issue 78 Pages 1-5
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe author considered Analysis of the Double-Slider Link Mechanism-a combination of cranks and slotted links with double-sliding blocks. In such mechanism, the expression of angular velocity and angular acceleration of the slotted links corresponding to 0°→180°of driving crank must be induced. The author examined these velocities and other elements about various limit of p1, p2 which are the ratio p1 of the radius of the driving crank to the distance between the fixed point of the first slotted link and the center of the driving crank, and.the ratio p2 of the length of the first link to the distance between the fixed points of the first and the second links. Thus, the maximum acceleration of links can be reduced considerably by suitable choice of value p1 and p2.View full abstractDownload PDF (741K) -
Takashi NAKADA, Yo IKEBE1953 Volume 19 Issue 78 Pages 6-8
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSBy the virtue of the high static sensitivity, many applications of the principle of pneumatic micrometer prevail not only in the instrumentation engineering but metrology. Among them, the vacuum type pneumatic micrometer, developed recently, is considered to suit for measuring means of servomechanisms by the reasons of no requirement of constant pressure tank and the wide range of linear response with higher sensitiveness than the ordinary compressed air type one. The dynamical response of the pneumatic micrometer is considered to be quite important for its application to servomechanism. By the experimental investigation and the analytical study, we concluded that, under a certain amount of static gain, the time constant of the transient response of the indication is inversely proportional to the effective area of the nozzle and proportional to the volume of the dead space between the nozzles and the pressure indicator.View full abstractDownload PDF (464K) -
Fujio HIRANO, Kaneyasu NISHIKAWA1953 Volume 19 Issue 78 Pages 8-13
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSExcess oil supply to ball bearing causes an increase in friction. At high speed, however, temperature rise of bearing becomes considerable amount. Therefore ; forced lubrication with a large quantity of oil is used for the purpose of cooling of bearing rather than lubrication in spite of the disadvantage with regard to friction. We investigated the cooling effect of oil jet and determined appropriate method of oil supply.View full abstractDownload PDF (807K) -
Naomichi HIRAYAMA1953 Volume 19 Issue 78 Pages 13-16
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSAssuming the fluid incompressible and viscus, the flow pattern in the bearing clearance of a practical pneumatic journal bearing is theoretically analysed, and pressure distributions are calculated. Then, the plausibility is comfirmed by experiments.View full abstractDownload PDF (558K) -
Tokio SASAKI, Shigeru ONO1953 Volume 19 Issue 78 Pages 16-18
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSDownload PDF (468K) -
Taku UENO1953 Volume 19 Issue 78 Pages 18-24
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThis report treats the grinding practice of involute helicoidal worms and of relieved surfaces of involute worm hobs. Involute worm is ground with a plane grinding wheel, and we have theoretically correct one without calculating the setting angles of the wheel, by changing the setting for trial till the ground worm would have given pressure angle. Next, after discussing several relief grinding methods of hob, w explained on the practical but accurate grinding method.View full abstractDownload PDF (928K) -
Akira WAKURI, Jinkichi SAKAI, Seizo KONDO1953 Volume 19 Issue 78 Pages 24-28
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSIndex worm wheels of high accuracy are very difficult and laborious to be made, but they are the most essential part of precision gear cutting machines. So we have studied how to make them and have comeeto the following conclusion : In order to obtain precision worm wheels easily, we must cut them on a rigid super precision hobbing machine. Therefore, an attempt of remodelling a precision hobbing machine into a super precision one was made in our laboratory. Strenuous efforts were made for making the very index worm wheel for the machine. Every tooth surface of the wheel was checked and corrected minutely by lapping. Thus the maximum accumulated pitch error was reduced to 11 seconds.View full abstractDownload PDF (733K) -
Akira WAKURI, Jinkichi SAKAI, Seizo KONDO1953 Volume 19 Issue 78 Pages 29-31
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSThe index worm should also be made as accurately as possible. Testing the tooth bearing batween the worm and wheel, we have corrected the pressure angle of worm minutely until ideal profile bearing has been obtained. The lead of the worm was also finished to the highest degree of accuracy on a special worm grinding machine. And we have succeeded to obtain the index worm, which has a long and continuous tooth bearing extending 3.5 pitches on worm thread, and also keeps the cyclic error motion not exceeding 7 seconds during every rotation. On this super precision hobber remodelled in our laboratory and equipped with the above mentioned index worm and worm wheel, we can easily cut index worm wheels with the maximum accumulated pitch error less than 20 seconds.View full abstractDownload PDF (538K) -
Masami MASUKO1953 Volume 19 Issue 78 Pages 32-39
Published: February 15, 1953
Released on J-STAGE: March 28, 2008
JOURNAL FREE ACCESSCutting forces were annalyzed by a new theory which maintains that they involved not only deformtion-forces of chips, but indentation-forces of a cutting edge into works. By this theory, the following "Metal-Cutting Paradoxes" were clearly solved theoretically. (i) A specific-cuttng force increases as the depth of cut decreases. (ii) A coeff. of friction increases with a cutting angle or the decrease of depth of cut. (iii) A shearing stress of chip deformation increases with the decrease of depth of cut and its value is extremely high compare with a statical value. (iv) A cutting force unexpectedly increases when a cutting angle is exceptionally small. Two compornents at orthogonal cuttings of duralumin, using the E.M.S. type cutting force dynamometer were measured and the new theory was verified experimentally. It was made clear that the intendation-forces were produced by an elastic deformation of cutting edge.View full abstractDownload PDF (1103K)
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