TH35336B - Motorcycles - Google Patents

Abstract

DC60 (04/09/55) In order to provide a motorcycle with a nearly uniform arrangement, both upward and downward, of the storage box and engine crankcase without increasing the seat height, the motorcycle is intentionally constructed to guarantee mounting space for mounting hardware between the engine and the front wheel. The rear end of the main frame assembly 11 terminates near the front end of the rear wall 3b of the storage box 3. The rear frame assembly 12 forms the front and rear sections of the rear frame. The front section is connected to the rear end of the main frame assembly 11 and extends significantly horizontally. The rear section of the rear frame, which is bent upwards from the rear end of the front section of the rear frame along the front surface of the rear wheel Wr, is formed on the rear frame assembly 12. The rear wall 3b of the storage box 3, which can accommodate a helmet H, significantly horizontally, with its lower opening surface... The downward-facing direction is aligned along the upper surface of the front section of the rear frame, and the engine crankcase 28 of the engine E is positioned in the vicinity of the lower surface of the rear wall 3b. In order to provide a motorcycle that achieves a similar upward and downward alignment of the storage box and engine crankcase without increasing the seat height, the motorcycle is intentionally constructed to guarantee mounting space for mounting tools between the engine and the front wheel. The rear end of the main frame component 11 terminates in the vicinity of the front end of the rear wall 3b of the storage box 3. The rear frame component 12 forms the front and rear sections of the rear frame. The front section is connected to the rear end of the main frame component 11 and extends approximately horizontally. The rear section of the rear frame, which is bent upwards from the rear end of the front section of the rear frame along the front surface of the rear wheel Wr, is formed. Mounted on the rear frame assembly 12, the rear wall 3b of the storage box 3, which can accommodate the H helmet in an approximately horizontal position with the lower opening surface oriented downwards, is arranged along the upper anti-reverse surface of the front section of the rear frame, and the crankcase 28 of the E engine is arranged in the vicinity of the lower surface of the rear wall 3b.

Claims (1)

1. A motorcycle in which the vehicle frame (F) includes the main frame assembly (11) which extends rearward downward from the head tube (10), a pair of left and right rear frame assemblies (12) connected to the rear end of the said main frame assembly (11), and a pair of left and right center mounting plates (13) which are attached to the corresponding rear frame assembly (12) respectively and extend downward, and the engine (E) which is positioned toward the front of the said center mounting plate (13), and the rear forks (2) for supporting the rear wheel (Wr) are attached to the said center mounting plate (13), while the storage box (3) for supporting the seat (5) is attached to the said rear frame assembly (12,12) in which the rear end of the said main frame assembly (11) terminates in the vicinity of the front end of the rear wall (3b) of the said storage box (3); The pair of front sections of the left and right rear frame, which are connected to the rear end of the main frame assembly (11) and extend significantly horizontally, and the pair of rear sections of the left and right rear frame, which bend upwards from the rear end of the front section of the rear frame along the front surface of the rear wheel (Wr), are formed onto the rear frame assembly (12), the bottom wall (3b) of the storage box (3) is positioned along the top surface of the front section of the rear frame; and the assembly box (70), which is located behind the main frame assembly (11) and in front of the front end of the rear wheel (Wr) and which contains the battery (71) in that section, is formed as a single unit with the bottom wall (3b) so that it extends downwards. From the bottom surface of the bottom wall (3b), the assembly box (70) is placed between the cross bracing piece (65), which is attached to the rear end of the main frame assembly (11) and which connects the front end of the rear frame assembly (12), and the rear cross bracing piece (65'), which connects the upward bending beginning of the rear frame assembly (12) and is placed between the center mounting plate (13), passing through the front section of the rear frame, and the pair of left and right front mounting plates (66) are fixed onto the cross bracing piece (65), the pair of left and right rear mounting plates (67) are fixed onto the corresponding upper section of the rear frame assembly (12), and the storage box (3) is positioned to be mounted onto those mounting plates (66,67).