Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Vehicle rack-and-pinion mechanism

A technology of rack and pinion and gear teeth, which is applied in the field of rack and pinion mechanisms for vehicles, can solve problems such as deformation of the steering rack shaft, and achieve the effect of improving strength and suppressing weight increase

Inactive Publication Date: 2019-02-05
HONDA MOTOR CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When hardening the entire steering rack shaft, deformation may occur and the steering rack shaft may bend into a bow shape

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle rack-and-pinion mechanism
  • Vehicle rack-and-pinion mechanism
  • Vehicle rack-and-pinion mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] One embodiment of the present invention will be described in detail with reference to appropriate drawings. The same reference numerals are assigned to the same constituent elements, and overlapping descriptions are omitted.

[0029] Such as figure 1 As shown, the rack-and-pinion mechanism 1 for a vehicle according to this embodiment includes a pinion gear 11 provided with pinion teeth 12 and rotatably supported around an axis, and a pinion gear 11 provided with rack teeth 22 capable of meshing with the pinion teeth 12 . Bar axis 21. In addition, the rack-and-pinion mechanism 1 for a vehicle according to this embodiment constitutes a steering device S for a vehicle.

[0030] That is, the pinion gear 11 constitutes a steering shaft S1, and rotates about its axis in conjunction with a steering operation. Then, when the pinion gear 11 rotates, the engaged rack teeth 22 slide to change the steering angle of the tire T. As shown in FIG.

[0031] In such a steering device...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Vickers hardnessaaaaaaaaaa
Login to View More

Abstract

A vehicle rack-and-pinion mechanism (1) which can be applied to a steering device (S) is provided with a pinion (11) that comprises gear teeth (12) and is supported so as to be rotatable about its axis and a rack shaft (21) that comprises rack teeth (22) capable of meshing with the gear teeth (12). A coating (31) comprising a plurality of laminated films having different degrees of hardness is formed on the surface of the rack teeth (22) of the vehicle rack-and-pinion mechanism (1).

Description

technical field [0001] The present invention relates to a vehicle rack and pinion mechanism used in a steering device of an automobile or the like. Background technique [0002] Conventionally, heat treatment such as quenching is performed on racks constituting steering gears of automobiles to improve rigidity, toughness, and strength. [0003] For example, Patent Document 1 proposes induction hardening of rack teeth formed on a steering rack shaft. When the entire steering rack shaft is quenched, deformation may occur and the steering rack shaft may bend into a bow shape. However, by induction hardening only the rack teeth, it is possible to suppress bending of the steering shaft and increase the strength of the rack teeth. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Application Laid-Open No. 6-264147 Contents of the invention [0007] However, in the case of the technique of increasing the strength of the rack ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/12C23C14/06F16H55/26
CPCB62D3/126C23C14/0641C23C14/0611C23C28/34C23C28/322C23C28/42C23C28/36C23C28/343F16H55/26F16H57/041C23C14/06C23C14/0605F16H19/04F16H55/06
Inventor 佐藤真人
Owner HONDA MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com