Vehicle body frame for a saddle type vehicle

Vehicle body frame for a saddle type vehicle

To eliminate an insertion structure formed at a connecting portion between a head pipe and a down frame, which are forged products, to achieve reduction of the cost and improve the welding quality. A main frame attachment portion 44 to which a main frame 20 is welded is provided on a head pipe 11 fo...

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1. Verfasser: TODA, MUNEHIRO
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CYCLE AXLE SUSPENSIONS
CYCLE FRAMES
CYCLE SIDE-CARS, FORECARS, OR THE LIKE
CYCLE STEERING DEVICES
CYCLES
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
PERFORMING OPERATIONS
RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES
TRANSPORTING
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creator TODA, MUNEHIRO
description To eliminate an insertion structure formed at a connecting portion between a head pipe and a down frame, which are forged products, to achieve reduction of the cost and improve the welding quality. A main frame attachment portion 44 to which a main frame 20 is welded is provided on a head pipe 11 formed by forging, and the main frame attachment portion 44 and a lower extension 45 extending downwardly from a pipe portion 40 are provided integrally with each other. A down frame attachment portion 50 is provided at a position of a lower portion of the lower extension 45 spaced from the main frame attachment portion 44 and the pipe portion 40, and the down frame 21 is welded at an upper end portion thereof to the down frame attachment portion 50. The down frame attachment portion 50 is configured from a connecting portion 54 extending in parallel to the pipe portion and an extension 55 extending rearwardly from a lower end portion of the connecting portion 54. The down frame 21 is welded only by contacting the same without inserting the same. By eliminating the insertion shape, reduction of the cost is implemented, and by disposing the down frame 21 in a spaced relationship from the main frame attachment portion 44 and the pipe portion 40 to which a high load is applied, the welding quality is improved.
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A main frame attachment portion 44 to which a main frame 20 is welded is provided on a head pipe 11 formed by forging, and the main frame attachment portion 44 and a lower extension 45 extending downwardly from a pipe portion 40 are provided integrally with each other. A down frame attachment portion 50 is provided at a position of a lower portion of the lower extension 45 spaced from the main frame attachment portion 44 and the pipe portion 40, and the down frame 21 is welded at an upper end portion thereof to the down frame attachment portion 50. The down frame attachment portion 50 is configured from a connecting portion 54 extending in parallel to the pipe portion and an extension 55 extending rearwardly from a lower end portion of the connecting portion 54. The down frame 21 is welded only by contacting the same without inserting the same. 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A main frame attachment portion 44 to which a main frame 20 is welded is provided on a head pipe 11 formed by forging, and the main frame attachment portion 44 and a lower extension 45 extending downwardly from a pipe portion 40 are provided integrally with each other. A down frame attachment portion 50 is provided at a position of a lower portion of the lower extension 45 spaced from the main frame attachment portion 44 and the pipe portion 40, and the down frame 21 is welded at an upper end portion thereof to the down frame attachment portion 50. The down frame attachment portion 50 is configured from a connecting portion 54 extending in parallel to the pipe portion and an extension 55 extending rearwardly from a lower end portion of the connecting portion 54. The down frame 21 is welded only by contacting the same without inserting the same. 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A main frame attachment portion 44 to which a main frame 20 is welded is provided on a head pipe 11 formed by forging, and the main frame attachment portion 44 and a lower extension 45 extending downwardly from a pipe portion 40 are provided integrally with each other. A down frame attachment portion 50 is provided at a position of a lower portion of the lower extension 45 spaced from the main frame attachment portion 44 and the pipe portion 40, and the down frame 21 is welded at an upper end portion thereof to the down frame attachment portion 50. The down frame attachment portion 50 is configured from a connecting portion 54 extending in parallel to the pipe portion and an extension 55 extending rearwardly from a lower end portion of the connecting portion 54. The down frame 21 is welded only by contacting the same without inserting the same. By eliminating the insertion shape, reduction of the cost is implemented, and by disposing the down frame 21 in a spaced relationship from the main frame attachment portion 44 and the pipe portion 40 to which a high load is applied, the welding quality is improved.</abstract><oa>free_for_read</oa></addata></record>
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language eng ; fre ; ger
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subjects CYCLE AXLE SUSPENSIONS
CYCLE FRAMES
CYCLE SIDE-CARS, FORECARS, OR THE LIKE
CYCLE STEERING DEVICES
CYCLES
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
PERFORMING OPERATIONS
RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES
TRANSPORTING
title Vehicle body frame for a saddle type vehicle
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