Title:
TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/162155
Kind Code:
A1
Abstract:
Provided is a transmission device in which a large-diameter gear meshes with a pinion midway along a specific semiperimeter region in which a toothed surface moves toward the upper end of the large-diameter gear from the lower end thereof in conjunction with forward movement. The pinion (Gcp) and the large-diameter gear (Gf) are configured from helical gears, and are disposed such that oil on the toothed surface is pushed out from a meshing section (40) to one side of the pinion in the axial direction during the forward movement of the gears. A flow-regulating wall (Bc1) facing the oil that has been pushed out from the meshing section to the one side in the axial direction is disposed adjacent to the end surfaces on the one side in the axial direction of the teeth of the pinion (Gcp), and is formed in a shape capable of covering as far as the tooth tip portions of the end surfaces. Accordingly, the oil that has been pushed out from the meshing section to the one side of the pinion in the axial direction during the forward movement of the large-diameter gear is restricted from flowing towards the one side in the axial direction by the flow-regulating wall facing the oil, and thus more easily flows out to the toothed section-side of the large-diameter gear due to congestion at the front side of the flow-regulating wall; therefore, the oil is easily carried around and lifted up by the large-diameter gear, increasing the amount of oil pushed up to a gear upper section by the large-diameter gear.
Inventors:
ASAI RYOSUKE (JP)
BUTTA NAOFUMI (JP)
BUTTA NAOFUMI (JP)
Application Number:
PCT/JP2022/007944
Publication Date:
August 31, 2023
Filing Date:
February 25, 2022
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H57/04
Foreign References:
| JP2013174338A | 2013-09-05 | |||
| JP2007032797A | 2007-02-08 | |||
| JP2020085015A | 2020-06-04 | |||
| JP2015147512A | 2015-08-20 |
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL IP FIRM (JP)
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