Meshed gear for vehicle

• US 9,212,724 B2
• Filed: 03/29/2011
• Issued: 12/15/2015
• Est. Priority Date: 03/29/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Takekawa, Hiroshi
• Primary Examiner(s): Kelleher, William
• Assistant Examiner(s): Agendia, Jude
• Application Number:
  US14/007,390
• Publication Number:
  US 20140013885A1
• Time in Patent Office: 1,722 Days
• Field of Search: 744/12.R, 744/11, 744/09, 744/14, 743/39, 744/62, 745/744, 745/731.2, 475/149, 475/257, 475/347, 464/68.3, 464/68.8, 464/180
• US Class Current: 1/1
• CPC Class Codes: F16H 1/04 involving only two intermeshing members
• CPC Class Codes: F16H 55/14 Construction providing resilience or vibration-damping F16H55/06 takes precedence
• CPC Class Codes: F16H 57/0006 Vibration-damping or noise reducing means specially adapted for gearings devices for varying tension of belts, ropes or chains with damping means F16H7/0829; toothed members with construction providing vibration damping F16H55/14; reducing vibrations or noise of the gearbox casing F16H57/028; suppression of vibrations or noise of gear selectors F16H59/0208; control of hydrostatic fluid gearing preventing or reducing vibrations or noise F16H61/4183
• CPC Class Codes: Y10T 74/19642 Directly cooperating gears

Abstract

It is provided a meshed gear for a vehicle disposed in a power transmission path between an engine and drive wheels and made up of a pair of gears meshed with each other, at least one gear making up the meshed gear having a ring shape, and the one gear having an outer circumferential portion disposed with an additional vibration system.

Claims

1. A meshed gear for a vehicle disposed in a power transmission path between an engine and drive wheels and comprising:

a pair of gears meshed with each other,

at least one gear making up the meshed gear having a ring shape from one end to another end axially,

the one gear having an outer circumferential portion with a dynamic damper disposed at least partially between the pair of meshed gears, disposed with a dynamic damper,

the dynamic damper including a ring-shaped mass member disposed on an outer circumferential side of the one gear and an elastic member connecting the mass member and the outer circumferential portion of the one gear, and

the mass member being connected only to the elastic member in a power transmittable manner.

2. The meshed gear for a vehicle of claim 1, wherein

the elastic member is made up of metal springs.