TH49435B - motorcycle - Google Patents

Abstract

DC60 (13/11/52) A cover plate structure was provided to facilitate easy maintenance of the cylinder block. While the body cover plates are indicated by dashed lines in the drawing, the lower cover plate 33 covers cylinder head 62 and cylinder block 61. Therefore, by removing the lower cover plate 33, it is possible to perform maintenance on cylinder head 62 and cylinder block 61. Injector 69 can be observed through the triangular opening 38. The intake system 67, specifically injector 69, is accessible through opening 38. In other words, maintenance of the intake system 67 can be performed without removing any cover plates. A cover plate structure was provided to facilitate easy maintenance of the cylinder block, while the body cover plates are indicated by dashed lines in the drawing. Lower cover plate 33 encloses cylinder head 62 and cylinder block 61. Therefore, only by removing lower cover plate 33 is it possible to perform maintenance on cylinder head 62 and cylinder block 61. Injector 69 can be observed through the triangular opening 38. Intake system 67, specifically injector 69, is accessible through opening 38. In other words, maintenance on intake system 67 can be performed without removing any covers.

Claims (6)

Revised 3/04/2015 1. Motorcycle (10) which is assembled with a steering shaft sleeve (51) positioned at the front of the vehicle, a main frame (52) extending downward from the said steering shaft sleeve (51), an engine (14) with a cylinder block (61) and a cylinder head (62) both positioned on the underside of the said main frame (52) and extending forward of the vehicle from the crankcase (15), a front cover plate (31) to cover the said steering shaft sleeve (51) on the front, a main frame cover plate (31) to cover the said steering shaft sleeve (51) on the rear and cover the top of the said main frame (52), and a lower cover plate (33) positioned on the underside of the said front cover plate (31) and the said main frame cover plate (32) and cover the sides of the said cylinder head (62), which is of the specific nature that The side of the cylinder block (61) is also covered by the aforementioned lower cover plate (33). The seat (21) is placed on top of the rear end of the main frame (52). The rear cover plate (34) for covering the rear of the vehicle is placed on the bottom of the seat (21) and on the rear of the main frame cover plate (32) and the lower cover plate (33). The rear cover plate (34) is placed on the rear of the crankcase (15) in the side view of the vehicle and covers the side surface of the vehicle under the seat (21), and the electrical equipment (87) for driving the engine (14) is placed in a position that overlaps with the rear cover plate (34) in the side view of the vehicle. A foot brake actuator (78) to be pressed at the time of braking is provided. A foot brake switch (79) to detect the operation of the said foot brake actuator (78) is provided, and a wiring harness (83) is routed from the said foot brake switch (79). The side cover of the accessory (35) is routed downward from the lower portion of the said rear cover (34) to overlap with the starter pedal (81) when not in use on the side of the vehicle. The wiring harness (83) is routed on the inside of the said side cover (35). 2. The motorcycle, according to claim 1, is characterized in that the starter motor (65) for starting the engine (14) is placed on the rear of the said cylinder block (61) and on the upper front portion of the said crankcase (15), and the rear portion of the said lower cover (33) is routed to the rear of the vehicle to a position on top of the said starter motor (65). 3. The motorcycle Under Claim 1, which is characterized that the intake system (67) of the said engine (14) is positioned between the said main frame (52) and the said cylinder head (62), and the opening (38) is demarcated by the edge (36) of the said lower cover plate (33) and the edge (37) of the said main frame cover plate (32) to allow access to the said intake system (67) from the side of the vehicle through the said opening (38). 4. Motorcycles under Claim 3, which is characterized that the said intake system (67) includes the injector (69) for supplying fuel to the said engine (14), and the said injector (69) is positioned to overlap the said opening (38) in the side view of the vehicle. 5. Motorcycles under Claim 1, which is characterized that the said rear cover plate (34) includes The front rear cover plate (43) is placed on the rear end of the main frame cover plate (32) and covers the top of the rear half of the main frame (52) and the front under the seat (21). The first rear side cover plate (44) is placed on the bottom of the front rear cover plate (43) and extends to the rear of the vehicle from the rear end of the lower cover plate (33). The front half of the first rear side cover plate (44) is placed on top of the crankcase (15) in the side view of the vehicle and covers the side of the main frame (52). The rear half of the first rear side cover plate (44) is placed on the rear of the crankcase (15) in the side view of the vehicle and covers the side surface of the vehicle under the seat (21). The second rear side cover plate (45) is placed on the rear end of the front rear cover plate (33). The first rear side cover (44) and the cover of the side surface of the vehicle under the seat (21) and the electrical equipment (87) are positioned in a position superimposed on the front half of the first rear side cover (44). 6. The motorcycle, according to claim 5, is characterized by a secondary air intake passage (85) for bringing outside air in for re-ignition of unburned components in the exhaust gases being connected to the middle section of the engine exhaust gas passage (14). The said secondary air intake passage (85) is fitted with a secondary air filter (88) to clean the incoming outside air and a secondary air control valve (86) which is positioned on the terminal side of the said secondary air filter (88) and which is made open and closed. The negative intake pressure in the engine (14) and the secondary air filter (88) are positioned in a position overlapping the front half of the first rear side cover (44) in the side view of the vehicle. 1. A motorcycle consisting of a steering shaft sleeve (51) mounted on the front of the vehicle, a frame (52) extending downward from the said steering shaft sleeve (51), an engine (14) with a cylinder block (61) and cylinder head (62) both mounted on the underside of the said frame (52) and extending forward of the vehicle from the crankcase (51), a front cover plate (31) to cover the said steering shaft sleeve (51) on the front, a frame cover plate (32) to cover the said steering shaft sleeve (51) on the rear and cover the top of the said frame (52), and a lower cover plate (33) mounted on the underside of the said front cover plate (31) and the said frame cover plate (32) and cover the sides of the said cylinder head (62), which is of the characteristic that: The side of the cylinder block (61) is also covered by the lower cover plate (33). The seat (21) is placed on top of the rear end of the main frame (52). The rear cover plate (34) for covering the rear of the vehicle is placed on the bottom of the seat (21) and on the rear of the main frame cover plate (32) and the lower cover plate (33). The rear cover plate (34) is placed on the rear of the crankcase (15) in the side view of the vehicle and covers the side surface of the vehicle under the seat (21), and the electrical equipment (87) for driving the engine (14) is placed in a manner that overlaps with the rear cover plate (34) in the side view of the vehicle. A foot brake actuator (78) to be pressed at the time of braking is provided. A foot brake switch (79) to detect the operation of such foot brake actuator (78) is provided, and the wiring harness (83) is routed from such foot brake switch (79). An accessory side cover (35) is routed downward from the underside of such rear cover (34) to overlap with the engine pedal (81) when not in use on the side of the vehicle, and the wiring harness (83) is routed on the inside of such accessory side cover (35). 2. The motorcycle, according to claim 1, is characterized in that the ignition motor (65) for starting the engine (14) is placed on the rear of the cylinder block (61) and on the front upper part of the crankcase (15) and the rear part of the lower cover plate (33) is made to extend towards the rear of the vehicle to a position on top of the ignition motor (65). 3. The motorcycle, in accordance with claim 1, is characterized in that the intake system (67) of the said engine (14) is positioned between the said main frame (52) and the said cylinder head (62), and the opening (38) is demarcated by the edge (36) of the said lower cover plate (33) and the edge (37) of the said main frame cover plate (32) so that access to the said intake system (67) is possible from the side of the vehicle through the said opening (38). 4. The motorcycle, in accordance with claim 3, is characterized by the intake system (67) including the injector (69) for supplying fuel to the engine (14) and the injector (69) being positioned to overlap the opening (38) in the side profile of the vehicle. 5. The motorcycle, according to claim 1, is characterized as follows: the rear cover (34) includes the front rear cover (43) which is placed on the rear of the main frame cover (32) and covers the top of the rear half of the main frame (52) and the front under the seat (21); the first rear side cover (44) which is placed on the underside of the front rear cover (43) and extends toward the rear of the vehicle from the rear end of the lower cover (33), with the front half of the first rear side cover (44) placed on the top of the crankcase (15) in the side view of the vehicle and covers the side of the main frame (52), and the rear half of the cover The first rear side panel (44) is positioned on the rear of the crankcase (15) in the side profile of the vehicle and covers the side surface of the vehicle under the seat (21), and the second rear side panel (45) is positioned on the rear of the first rear side panel (44) and covers the side surface of the vehicle under the seat (21), and the electrical equipment (87) is positioned in a position superimposed on the front half of the first rear side panel (44). 6. The motorcycle, in accordance with claim 5, is characterized by a secondary air intake passage (85) for bringing outside air in for re-ignition of unburned components in the exhaust gases, which is connected inward to the middle of the said engine exhaust gas passage (14). This said secondary air intake passage (85) is fitted with a secondary air filter (88) to clean the outside incoming air, and a secondary air control valve (86) which is positioned on the terminal side of said secondary air filter (88) and which is opened and closed by the negative intake pressure in said engine (14), and this said secondary air filter (88) is positioned in a position superimposed on the said front half of the said first rear side cover (44) in the side profile of the vehicle.