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Triaxial gearing and gearing

Tani Hirofumi, +3 more
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TLDR
In this paper, a triaxial gearing provided with a uniaxial gear and with a Triaxial gear respectively meshed with a biaxonial gear is determined on the basis of a mesh pressure angle and a helix angle of a base circle in addition to a parallelism error and a stagger error.
Abstract: 
PROBLEM TO BE SOLVED: To suppress the fluctuation of a mesh transmission error, the fluctuation of relative relation of' a gear pair, so as to reduce vibration and noise. SOLUTION: In a triaxial gearing provided with a uniaxial gear and a triaxial gear respectively meshed with a biaxial gear, the gear tooth modifying quantity is determined on the basis of a mesh pressure angle and a helix angle of a base circle in addition to a parallelism error and a stagger error between shafts meshing with teeth. The tooth surface modifying quantity is maximum at the middle 73 from one end 71 of a modifying range to the other end 72 in a face width direction and is minimum at one end 71 and the other end 72, and the modifying quantities at one end and the other end are different within a fixed range.

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Rack-and-Pinion Steering Apparatus

Takayasu Yamazaki, +1 more
TL;DR: In this article, a rack-and-pinion steering system with a high degree of design freedom is presented, where the sum of the tilt angle of a pinion tooth with respect to a reference line perpendicular to the axial line of a rack shaft is calculated.
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Improved method for optimally designing noise of main parameter of bevel gear of transmission

Zong Changfu, +6 more
TL;DR: In this paper, an improved method for optimally designing noise of a bevel gear, belonging to the field of optimal design of transmission gears, is presented. But this method does not consider the impact of the gear engagement transmission error.
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Rack and pinion-type steering device

Takayasu c, +1 more
TL;DR: A rack and pinion-type steering device where pinion teeth whose specifications except the pressure angle are appropriately set under a large pressure angle is constructed to enable smooth and excellent steering feeling to be achieved for a long period as mentioned in this paper.
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Gear device and power transmitting device

Takashi Shimizu
TL;DR: In this paper, a gear device that can reduce vibration and noise is provided, which includes a first gear (11) provided at a first shaft, a second gear (21) providing at a second shaft to mesh with the first gear, and a third gear (31) provided by a third shaft to meshes with the second gear.
Patent

Triaxial gear device

Morikawa Kunihiko
TL;DR: In this paper, different tooth flank modifications are executed in the respective gear pairs in response to levels of the meshing phase differences of the gear pairs, in a direction to delay or advance timing of rotational fluctuation generated by the respective gears pairs of the respective meshing pairs.