Frame structure of motor bicycle

A motor two-wheeled vehicle and frame technology, which is applied in the direction of motor vehicles, bicycle frames, motorcycles, etc., can solve the problem of difficulty in ensuring the length of welding lines, and achieve the effect of ensuring welding strength, easy welding and accurate welding.

Inactive Publication Date: 2003-09-03
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to increase the welding strength, it is difficult to secure a sufficient welding line length even if the welding line is lengthened

Method used

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  • Frame structure of motor bicycle
  • Frame structure of motor bicycle
  • Frame structure of motor bicycle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0021] Next, an embodiment of the present invention configured as a specially manufactured motorcycle will be described with reference to the drawings. FIG. 1 is a side view showing a connection portion of a main frame, a seat rail, and a pivot frame. Fig. 2 is an overall left side view of the two-wheeled motor vehicle. Fig. 3 is an overall right side view of the two-wheeled motor vehicle. Fig. 4 is an overall side view of the vehicle frame. FIG. 5 is a top view of FIG. 1 .

[0022] As shown in Fig. 2 and Fig. 3, in this two-wheeled motor vehicle, the upper part of the front fork 2 supporting the front wheel 1 is rotatably supported on the head pipe 5 through the bottom connection fitting 3 and the top connection fitting 4, and the handle bar 6 is installed on the top connection fitting 4, and the position of its handle 7 is configured at the rear.

[0023] The head pipe 5 is mounted on the front end of the main frame 10. The main frame 10 extends forward and backward alon...

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PUM

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Abstract

The purpose of the invention is to provide a main frame of a motorcycle to which seat rails and pivot frames are easily welded. Pivot frames 13 and seat rails 15 are connected to the sides of a rear end portion of a main frame 10 in the form of a round pipe. Upper ends 60 of the pivot frames 13 and front ends 70 of the seat rails 15 are held against the sides of the rear end portion of the main frame 10 such that their attachment axes L1, L2 are substantially aligned with an axis LO of the main frame 10 and the upper ends 60 and the front ends 70 are staggered longitudinally in an overlapping relationship as viewed in a side elevation. The upper ends and the front ends are then welded to the main frame 10 along continuous welding lines 63, 73, 80.

Description

technical field [0001] The present invention relates to a frame of a two-wheeled motor vehicle. Background technique [0002] The frame of the conventional two-wheeled vehicle disclosed in Japanese Patent Publication No. 4-71747 is equipped with a round pipe main frame extending rearward from a head pipe that supports the front wheel in a freely steerable manner, and the upper end is welded to the main frame. A pivot frame extending downward from the side of the rear end, and a seat rail whose front end is welded to the side of the rear end of the main frame and extends rearward. [0003] The axis of the upper end of the pivot frame extends up and down, and intersects with the axis of the main frame and the axis of the front end of the seat rail respectively. [0004] The pivot frame and the seat rail are also circular tubes respectively, which are arranged on the pivot portion in the middle of the pivot frame, and pivotally support the front end of the rear arm, and the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62K11/04B62K19/20
CPCB62K11/04B62K11/02
Inventor 英诚二铃木均
Owner HONDA MOTOR CO LTD
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