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Steering damper device

A technology of shock absorber and shock absorber, which is applied in the direction of steering mechanism, transportation and packaging, bicycle accessories, etc., which can solve the problems of difficulty in maintaining angle-dependent characteristics of handle steering angle, inability to realize miniaturized layout, difficulty in attenuation force, etc.

Inactive Publication Date: 2007-09-26
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as described in the above-mentioned Patent Document 1, according to the turning direction of the handle, the cylindrical damper contracts when going to one side and expands when going to the other side, and when the handle is switched from the steering angle of 0° to the right and to the left However, it is difficult to obtain different damping forces when the handle is turned from a steering angle of 0° and when it is returned to a steering angle of 0°
Also, it is difficult to maintain the angle dependence property for the handle steering angle
Moreover, as described in the above-mentioned Patent Document 1, in its structure, since a long shock absorbing stroke is required, a miniaturized layout cannot be realized.

Method used

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Examples

Experimental program
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Embodiment 1

[0057] Among the figures, Fig. 1 to Fig. 8 show the first embodiment according to the steering damper device of the present invention, Fig. 1 is a side view showing the essential parts of a motorized two-wheeled vehicle equipped with the steering damper device, Fig. 2 is The front view of the front fork seen from the direction of arrow 2 in Fig. 1, Fig. 3 is a cross-sectional view of the cylinder shock absorber part along the line 3-3 in Fig. 2, Fig. 4 and Fig. 5 are for the cylinder Figure 6 is an enlarged view illustrating the function of the type shock absorber, Fig. 6 is a front view similar to Fig. 2 showing the state when the handle is switched to the left, and Fig. 7 is a cross-sectional view along line 7-7 in Fig. 6, Fig. 8 is a characteristic graph of the steering damper device.

[0058] As shown in FIGS. 1 and 2 , a front fork 2 supporting a front wheel 1 of a motorcycle has left and right fork pipes 3 , 3 and a fork bridge 4 connecting the upper ends thereof. The f...

Embodiment 2

[0073] 9 to 13 show a second embodiment of the steering damper device according to the present invention. FIG. 9 is a side view showing the main parts of a motorcycle equipped with the steering damper device. FIG. 10 is a view from FIG. 9 Figure 11 is a cross-sectional view of the barrel shock absorber along the line 11-11 in Figure 10, Figure 12 is a diagram showing the state when the handle is switched to the left 10 is the same plan view, and Fig. 13 is a sectional view along line 13-13 in Fig. 12 .

[0074] In addition, in the second embodiment, parts corresponding to those in the first embodiment are assigned the same reference numerals, and thus redundant explanations are omitted.

[0075] As shown in FIGS. 9 and 10 , in the case of the second embodiment, a brace protruding upward is provided at a position in front of the steering rod 5 on the upper central portion of the top bridge 4 a forming the upper part of the fork bridge 4 . Article 28. Further, an extension por...

Embodiment 3

[0082] 14 and FIG. 15 show a third embodiment of the steering damper device according to the present invention. FIG. 14 is a plan view showing the front fork of a motorcycle equipped with the steering damper device. FIG. The side view seen in the direction of arrow 15.

[0083] In addition, in this third embodiment, parts corresponding to those in the second embodiment are given the same reference numerals, and thus redundant explanations are omitted.

[0084] As shown in FIG. 14 and FIG. 15, in the case of the third embodiment, on the upper surface of the extension portion 6j extending rearward from the upper end portion of the head pipe 6h, a substantially triangular link 38 is freely rotatable via a horizontal shaft 39. to be supported. Further, a cylindrical damper 40 is arranged between the link 38 and the down tube 6d between the left and right main frames 6m, 6m constituting the vehicle body frame 6 together with the head pipe 6h. The cylindrical damper 40 is composed...

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Abstract

A cylindrical steering damper apparatus for a motorcycle has a relatively simple structure, in which a gradually increasing damping force is generated according to the turned angle when a handlebar is turned, and the damping force is not generated when the handlebar is returned. The cylindrical damper is disposed between a head pipe, for pivotally supporting a steering stem, and a fork bridge of a front fork, so as to be the shortest when the handlebarbar is at a neutral position. The cylindrical damper is connected to the head pipe and the fork bridge via spherical ball-and-socket joints. The cylindrical damper generates the damping force when being expanded. Since the cylindrical damper is expanded when the handlebar is turned in either a left or right direction, a damping force is generated.

Description

[0001] This application is a divisional application of the Chinese invention patent application whose application number is 200410056359.7, the application date is August 9, 2004, and the invention name is "steering damping device". technical field [0002] The present invention relates to a steering damper used in small vehicles such as motorcycles. Background technique [0003] In a motorcycle, steering is performed by operating a handle to rotate a front fork supporting a front wheel around a steering rod rotatably inserted through a headpipe at the front end of a vehicle body frame. In such a two-wheeled motor vehicle, a steering damper device may be provided between a steering-side member that rotates when a handle is operated and a body-side member that does not rotate even when the handle is operated. In this case, the steering damper is required to generate almost no damping torque during normal driving where the handle switching angle is small and the angular veloci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K21/08
CPCB62K21/08
Inventor 后乡和彦渡边昭海
Owner HONDA MOTOR CO LTD
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