Unlock instant, AI-driven research and patent intelligence for your innovation.

Rack boot

A dust cover and rack technology, applied in steering mechanisms, mechanical equipment, transportation and packaging, etc., can solve problems such as large bending deformation and bending, and achieve the effect of avoiding bending and reducing compressive load.

Inactive Publication Date: 2007-01-31
TOYODA GOSEI CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As disclosed in Patent Document 1, even with a rack boot having a central bellows portion and two tapered bellows portions, bending is similarly caused when the mounting area becomes too small
In particular, in this case, in the central bellows portion with a large outer diameter, a large bending deformation is caused
Therefore, in the rack boot disclosed in Patent Document 1, bending is still caused, and the defect related to the bending of the rack boot, that is, the clamping of the bent portion of the rack boot, remains unsolved. Hold between the steering gear and the ball joint, and the rack boots affecting the various components arranged adjacent to the rack boots remain unresolved

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
  • Rack boot
  • Rack boot
  • Rack boot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0037] The rack boot of Embodiment 1 includes the configurations described under (1) to (4).

[0038] figure 1 shows an axial sectional view showing the rack boot of Embodiment 1, and figure 2 shown in figure 1 Enlarged view of main part. image 3 is an explanatory view of the main part of the rack boot according to Embodiment 1, and schematically shows a state in which the rack boot is compressed and deformed in its axial direction. Figure 4 An explanatory diagram is shown in , which schematically shows a state in which the rack boot of Embodiment 1 is compressed and deformed while being largely rotated.

[0039] Such as figure 1 with figure 2 As shown, the resin dust cover according to Embodiment 1 includes a bellows portion 1 , a second cylindrical portion 2 , and a first cylindrical portion 3 . The bellows part 1, the second cylindrical part 2, and the first cylindrical part 3 are integrally formed by blow molding. The second cylindrical portion 2 is formed in...

Embodiment approach 2

[0051] The rack boot of Embodiment 2 includes the configurations described under (2) to (4). Figure 5 An axial sectional view is shown in , which schematically shows the rack boot of the second embodiment.

[0052] Such as Figure 5 As shown, the rack boot of Embodiment 2 includes: a bellows portion 1 , a second cylindrical portion 2 , and a first cylindrical portion 3 . The first cylindrical portion 3 and the second cylindrical portion 2 are the same as those of the first embodiment. The bellows part 1 is composed of a first bellows part 10 and a second bellows part 12 . As in the case of Embodiment 1, the first bellows portion 10 has a small-diameter side bellows portion 13 and a large-diameter side bellows portion 14 . The small-diameter side bellows portion 13 has the same shape as that of the first embodiment.

[0053] The large-diameter side bellows portion 14 is formed in a tapered shape in which the outer diameter of the raised portion 4 is formed such that the ou...

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

No PUM Login to View More

Abstract

In a rack boot having a bellows portion, a cylindrical portion which is formed at one end of the bellows portion so as to be fixed to a tie-rod and a second cylindrical portion which is formed at the other end of the bellows portion so as to be fixed to a steering gearbox, the bellows portion is divided into a first bellows portion which extends from a third ridge of ridge portions resulting when the ridge portions are counted from an end portion of the bellows portion which lies to the second cylindrical portion to the other end portion thereof which lies to the first cylindrical portion and a second bellows portion which extends from the third ridge to the end portion thereof which lies to the second cylindrical portion, and at least the first bellows portion is formed into a tapered shape.

Description

technical field [0001] The invention relates to a steering mechanism dust cover used on a motor vehicle. Background technique [0002] The rack dust cover is a component that covers the ball joint between the steering gear and the tie rod of the motor vehicle, and, in Figure 8 to Figure 11 A conventional rack boot called a rack boot or a steering rack boot is exemplarily illustrated in , to describe the shape of the conventional rack boot hereinafter. Figure 8 is an axial sectional view exemplarily illustrating a conventional rack boot. Figure 9 is shown in Figure 8 An enlarged view of the main part of a conventional rack boot. Figure 10 is an enlarged view of the main part of the conventional rack boot, exemplarily illustrating the state of the conventional rack boot in its axial compression deformation state. Figure 11 is an explanatory diagram exemplarily illustrating a state when a conventional rack boot that is rotated to a large extent is compressed and deform...

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): F16J3/04F16J15/52
CPCF16J3/041B62D7/16B62D3/12
Inventor 稻垣秀彦
Owner TOYODA GOSEI CO LTD