TH56768B - Structure of the vehicle speed sensing system - Google Patents

Abstract

DC60 (13/03/60) In a vehicle wherein the power transmission means for transmitting power from the power source to the rear axle is provided in a crank arm oscillatingly supported on the vehicle body frame, the final drive of the reduction gear train forming part of the power transmission means is fixed to the axle, and a pickup portion forming a vehicle speed sensor together with a sensing portion provided on the final drive gear is mounted on the crank arm so as to face the sensing portion. The sensing portion (108) is provided on one surface of the end surface along the opposite axis of the final drive gear (103), and the pickup portion (109) is mounted on the crank arm (22A) so as to extend parallel to the axis of the shaft (21) accordingly, it is possible to reduce the size of the crank arm so as to prevent an increase in length in the fore and aft directions of the crank arm even when the pickup portion is mounted. Edit 13/03/60 In a vehicle wherein the power transmission means for transmitting power from the power source to the rear axle of the The rear wheels are arranged in a crank arm which is oscillatingly supported on the vehicle body frame. The final drive of the reduction gear train forming part of the transmission path is fixed to the shaft, and a pick-up portion forming the vehicle speed sensor together with the sensing portion is arranged on the final drive gear, and is mounted on the crank arm so as to face the sensing portion. The sensing portion (108) is arranged on one surface of the end surface along the opposite axis of the final drive gear (103), and the pick-up portion (109) is mounted on the crank arm (22A) so as to extend parallel to the axis of the shaft (21). This makes it possible to reduce the size of the crank arm so as not to increase in length in the fore and aft directions of the crank arm even when the pick-up portion is arranged. --------------------------------------------------------------

Claims (8)

Disclaimer (all) which will not appear on the advertisement page: EDIT 13/03/2017 1. A vehicle speed sensing structure in a vehicle where: the rear axle (21) of the rear wheel (WR) near one side of the rear is rotated rotated around an axis in the rear part of the crank arm ( 22A, 22B), which is centrally supported on the vehicle body frame (F); The transmission path (77) for transmission from the power source (23) to the shaft (21) is supported in the crank arm (22A, 22B); The final gear (103) of the reduction gear (78) that is formed part of the powertrain (77) is fixed to the shaft (21); And the pickup part (109) that forms the vehicle speed sensor (110) together with the sensed part (108), which has been provided on the final gear (103), is attached. Set up on the crank arm (22A, 22B), with the pick-up section (109) arranged so that it faces the Detected part (108), by crank arm (22A, 22B) included. The main body part of the crank arm (71) with the shaft (21) is supported rotatable around the axis on it, the gear jacket (72) is coupled with the main body part of the crankcase ( 71) from behind the rear wheels (WR) and cover the reduction gear train (78), and the cover (73A, 73B) that have been coupled to the main body portion of the crank arm (71) from the opposite side to The rear wheel (WR) and the trajectory cover (77), with the main body part of the crank arm (71) with the pickup (109) mounted on that section, which are designated Characteristic That the detected portion (108) was arranged on one surface of the distal surface according to The opposite axes of the last gear (103), and the pickup (109) have been installed on the fuselage. The pivot arm (71) from the outside of the vehicle's body, the outer end of the pickup (109) is covered by a cover (73A, 73B), so that it extends parallel to the axis. Of the shaft (21), the conductor wire (112) which has been connected to the pickup section (109) will be wired inside the crank arm (22A, 22B) between the main body section of the crank arm (71). And cover (73A, 73B) 2. The vehicle speed sensing structure in accordance with claim 1, where a large portion of the pickup segment (109) is positioned at a position overlapping the final gear (103) on the The figure is projected onto a plane perpendicular to the axis of the shaft (21). 3. The vehicle speed sensing structure in the vehicle according to claim 1, where the pickup section (109) is installed on the main body part of the crank arm (71) to allow it to be extended. out Some parts from the main body portion of the crank arm (71) and the pigup cover (116) for covering the pigup protrusion (109) from the main body portion of the crank arm (71) were obtained. Arrangement on the cover (73B) 4. The vehicle speed sensing structure in the vehicle according to claim 3, where the mounting shoulder (119) for the pickup (109) is formed on the main body part of the crank arm ( 71), at one position inward from the coupling surface (118) of the cover (73B) to the main body part of the crank arm (71). 5. The vehicle speed sensing structure in accordance with any one of claims 1 to 4, where the transmission path (77) consists of a reduction gear train (78) that is inserted. Intervened between the electric motor (23) as the power source and the shaft (21), and the centripetal clutch (79) is interpolated between the electric motor (23) and the reduction gear train (78). 6. The vehicle speed sensing structure in accordance with any of the claims 1 to 5, where the pickup section (109) is installed on the crank arm (22A, 22B) at the same location. at It is important to the coupling portion of the rear suspension (33) that is provided between the frame. Vehicle body (F) with crank arm (22A, 22B) with crank arm (22A, 22B) in direction according to Vehicle width 7. The vehicle speed sensing structure in accordance with one of Claims 1 to 6, where the power source is an electric motor (23) mounted on the main body of The crank arm (71) and covered by the cover (73A, 73B). 8. The vehicle speed sensing structure in the vehicle according to claim 5 or 7 where, the pickup section (109) is positioned closer to the rear of the vehicle than the electric motor (23), and The conductor wire (112) passes under the electric motor (23) and extends to the front of the motor inside the crank arm (22A, 22B) that ------------------- ----------------------------------