Seat frame for motorcycle

A technology for two-wheeled motor vehicles and seat frames, applied in the direction of motor vehicles, bicycle racks, bicycle saddles, etc.

Active Publication Date: 2019-10-11
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding this point, even if it is connected with the rear portion of the vehicle body frame to support the seat frame such as the front and rear seats and the saddle box, it is

Method used

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  • Seat frame for motorcycle
  • Seat frame for motorcycle
  • Seat frame for motorcycle

Examples

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Embodiment Construction

[0038] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. figure 1 It is a left side view of the motorcycle 1 to which the seat frame SF of one embodiment of this invention is applied. The two-wheeled vehicle 1 is a dual-purpose saddle-riding type vehicle that travels by transmitting the driving force of the engine E serving as a power source to the rear wheels WR using a transmission chain 21 . At vehicle body front end portions of a pair of left and right main frames F2 constituting the vehicle body frame F, a head pipe F1 pivotally supporting an unillustrated steering shaft is provided. A pair of left and right front forks 13 that rotatably pivotally support the front wheel WF are supported by a top beam 6 and a bottom beam 11 fixed to the steering shaft above and below the head pipe F1. A pair of left and right rearview mirrors 5 and a knuckle cover (nack guard) 22 are attached to the steering handle 4 f...

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PUM

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Abstract

The invention provides a seat frame for a motorcycle that includes a plurality of aluminum parts manufactured with different manufacturing methods. A seat frame (SF) includes front members (S1) disposed on a front side of a vehicle body, middle members (S2) connected to rear portions of the front members (S1), and a rear member (S3) connected to rear portions of the middle members (S2), wherein the front members (S1), the middle members (S2), and the rear member (S3) are formed of aluminum members manufactured in different manufacturing methods. The rear member (S3) is formed by integral molding based on a gravity casting method. The rear member (S3) includes a pair of left and right rail portions (71), a front crossbeam portion (72) extending in a vehicle widthwise direction on the frontside of the vehicle body and connecting the left and right rail portions (71), a rear crossbeam portion (73) extending in the vehicle widthwise direction on a rear side of the vehicle body and connecting the left and right rail portions (71), and a plurality of attachment bosses (80-87) for attaching other parts. The left and right rail portions (71) each have an attachment portion (90, 91) to beconnected to a rear end portion of corresponding one of the middle members (S2) provided on an end portion thereof on the front side of the vehicle body.

Description

technical field [0001] The present invention relates to a seat frame of a two-wheeled motor vehicle, in particular to a seat frame of a two-wheeled motor vehicle constituted by combining a plurality of metal fittings. Background technique [0002] Conventionally, there is known a method of structuring a vehicle body frame of a motorcycle by welding a plurality of metal parts manufactured by different manufacturing methods. [0003] In Patent Document 1, there has been disclosed a body frame of a two-wheeled vehicle, which consists of a head pipe formed of a gravity die-cast material of aluminum, a main pipe formed of an extruded material of aluminum, and a pivot plate formed of a die-cast material of aluminum. formed by welding each other. [0004] In the vehicle body frame disclosed in Patent Document 1, which method is used to manufacture which parts are determined in accordance with required performances such as strength, weight, appearance, precision, and manufacturing ...

Claims

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Application Information

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IPC IPC(8): B62K11/02B62K19/20B62K19/12B62J1/08
CPCB62K11/02B62K19/20B62K19/12B62J1/08B62K11/04B62K19/10
Inventor 铃木将太林敬济东岛良树
Owner HONDA MOTOR CO LTD
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