JP2017081384A - Attachment structure of accelerator position sensor of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment structure of an accelerator position sensor which can shorten a length of a throttle cable, and in which an influence imparted to a play of the throttle cable is small at the stationary steering of a handlebar.SOLUTION: An attachment structure of an accelerator positive sensor of a vehicle comprises: a vehicle body frame; a handlebar lever 108 which is attached to an upper side of a steering head pipe 101 of the vehicle body frame at a front end; a throttle grip 109 arranged at an end part of the handlebar lever 108; and an accelerator position sensor 10 for detecting an operation amount of the throttle grip 109. The throttle grip 109 is attached to the vicinity of the steering head pipe 101 being a right side rather than a vehicle body center line.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mounting structure for an accelerator position sensor of a vehicle.

  Some vehicles include an accelerator position sensor that detects the amount of operation of the throttle grip via a throttle cable, and engine control (for example, fuel injection control, ignition timing control, idle rotation speed control, etc.) is performed based on the detection result. Done. In such a vehicle, the accelerator position sensor is attached at a position away from the throttle grip in order to improve the beauty around the steering wheel.

In the two-wheeled vehicle disclosed in Patent Document 1, a throttle sensor unit as an accelerator position sensor is between two down tubes, and is attached to one of the down tubes by a fastening member such as a bolt.
In the motorcycle disclosed in Patent Document 2, the accelerator position sensor is attached to the left side surface of the main frame extending from the head pipe to the rear of the vehicle body with a bolt via a bracket.

International Publication No. 2004/014718 JP 2008-274925 A

However, in the motorcycle disclosed in Patent Document 1, since the accelerator position sensor is attached to the down tube, a throttle cable routed from the throttle grip to the accelerator position sensor becomes long. Therefore, handling when the throttle cable is routed to the down tube becomes complicated.
Further, since the motorcycle disclosed in Patent Document 2 is attached to the left side surface of the main frame, the throttle cable must be routed around the steering head pipe, resulting in a long throttle cable. . In addition, when routing around the steering head pipe, there is a problem that when the steering wheel is steered to the left or right, the throttle cable is pulled or loosened, which affects the play of the throttle cable. .

  The present invention has been made in view of the above points, and provides an accelerator position sensor mounting structure that can shorten the length of the throttle cable and that has little influence on the play of the throttle cable when the handle is fully closed. Objective.

  The present invention relates to a vehicle body frame, a handlebar attached to a steering head pipe at the front end of the vehicle body frame, a throttle grip provided at an end of the handlebar, and an accelerator position sensor for detecting an operation amount of the throttle grip. The accelerator position sensor is attached to a vehicle on the right side of the vehicle center line and in the vicinity of the steering head pipe.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to shorten the length of a throttle cable, the attachment structure of the accelerator position sensor which has little influence on the play of a throttle cable at the time of a steering wheel can be provided.

1 is a right side view of a motorcycle. It is a figure which shows the attachment structure of the accelerator position sensor of 1st Embodiment. It is a figure which shows the attachment structure of the accelerator position sensor of 1st Embodiment. It is the figure which expanded a part of FIG. It is a figure which shows the attachment structure of the accelerator position sensor of 2nd Embodiment. It is a figure which shows the attachment structure of the accelerator position sensor of 2nd Embodiment.

(First embodiment)
A preferred embodiment of a vehicle accelerator position sensor mounting structure according to the present invention will be described below with reference to the drawings. Here, the case where the accelerator position sensor is attached to a motorcycle will be described.
First, the overall configuration of the motorcycle 100 will be described with reference to FIG. FIG. 1 is a left side view of the motorcycle 100. In FIG. 1, the front of the vehicle is indicated by an arrow Fr, the rear of the vehicle is indicated by an arrow Rr, the right side of the vehicle is indicated by an arrow R, and the left side of the vehicle is indicated by an arrow L.

  In the motorcycle 100, a vehicle body skeleton is formed by a vehicle body frame made of steel or aluminum alloy. The vehicle body frame includes a steering head pipe 101 disposed at the front end, an upper frame 102 extending rearward from the steering head pipe 101, and a lower frame 103 extending rearward and obliquely downward from the steering head pipe 101. Prepare. The steering head pipe 101 rotatably supports a pair of left and right front forks 105 via upper and lower fork brackets 104a and 104b. The upper frame 102 is curved downward at a position reaching the center in the longitudinal direction of the vehicle body. On the rear side and the upper side of the upper frame 102, a pair of left and right seat rails 106 extends slightly obliquely upward toward the rear side. The lower frame 103 extends from the lower side to the rear side of the vehicle, and supports the power unit including the engine 107 together with the upper frame 102 at a substantially central portion of the vehicle.

A handle bar 108 is coupled to the upper side of the front fork 105, specifically to the upper end of the fork bracket 104a. A throttle grip 109 is provided at one end (right end) of the left and right ends of the handle bar 108. On the other hand, a front wheel 110 is rotatably supported at the lower end of the front fork 105. The upper part of the front wheel 110 is covered with a front fender 111.
On the rear side of the engine 107, a swing arm 112 swingable in the vertical direction via a pivot shaft is supported by the upper frame 102. A rear wheel 113 is rotatably supported at the rear end of the swing arm 112. An upper portion of the rear wheel 113 is covered with a rear fender 114.

A shock absorber 115 is suspended between an intermediate portion in the front-rear direction of the swing arm 112 and the upper frame 102 side. A seating seat 116 supported by the seat rail 106 is disposed above the rear fender 114. A fuel tank 117 is supported by the upper frame 102 on the front side of the seating seat 116. A headlamp unit 118 is attached to the front side of the steering head pipe 101.
As for the vehicle exterior, the shroud 119 and the side cover 120 disposed in the vicinity of the engine 107 are attached to the upper frame 102 and the lower frame 103, and the rear cover 121 is attached to the seat rail 106 and the like.

  Next, the accelerator position sensor will be described. The accelerator position sensor detects the operation amount of the throttle grip 109 via the throttle cable, and transmits information on the detected operation amount to an ECU (Electronic Control Unit) (not shown). The ECU controls the engine 107 (for example, fuel injection control, ignition timing control, idle rotation speed control, etc.) based on the transmitted operation amount information. The accelerator position sensor of the present embodiment is attached at a position where the length of the throttle cable is shortened and the play of the throttle cable is hardly changed even when the occupant steers the handlebar 108 in the left-right direction.

Hereinafter, the mounting structure of the accelerator position sensor will be described with reference to FIGS. FIG. 2 is a view of the motorcycle 100 as viewed from the front side, and shows a configuration around the steering head pipe 101 with the headlamp unit 118 removed. FIG. 3 is a side view of FIG. 2 viewed from the right side. FIG. 4 is an enlarged partial cross-sectional view of a part of FIG.
As shown in FIG. 2, the accelerator position sensor 10 is attached to the steering head pipe 101 on the right side of the vehicle body center line (straight line L).

  At this time, the two throttle cables 20 extending from the throttle grip 109 pass through the front side of the fork bracket 104a, hang down along the steering head pipe 101, and are connected to the accelerator position sensor 10. When the occupant steers the handle bar 108 in the left-right direction, the throttle grip 109 rotates together with the handle bar 108, while the position of the accelerator position sensor 10 does not change. Accordingly, the two throttle cables 20 are routed with so-called play (deflection) on the assumption that they are pulled when the handle bar 108 is steered in the left-right direction.

Here, as shown in FIG. 4, two boss portions 30 as attachment portions are joined to the outer peripheral surface on the right side of the steering head pipe 101 by welding or the like at a predetermined distance in the vertical direction. . Each boss portion 30 is formed with a screw hole 31 whose axial direction is the vehicle width direction.
The accelerator position sensor 10 has a plate-like support member 11 that supports the sensor. Two attachment holes 12 are formed in the support member 11 at positions separated by a predetermined distance. The interval between the two mounting holes 12 matches the interval between the two boss portions 30. In addition, spacers 13 are fitted in the mounting holes 12 respectively. The spacer 13 is formed of a flexible material such as rubber, and has an H shape when viewed in cross section. Specifically, the spacer 13 includes an insertion hole 14 that is coaxial with the mounting hole 12, and a flange portion 15 that extends in the radial direction from one and the other opening of the insertion hole 14.

  As shown in FIG. 4, the bolt 16 is inserted through the insertion hole 14 of the spacer 13 along the vehicle width direction and is screwed into the screw hole 31 of the boss portion 30, whereby the accelerator position sensor 10 is fitted to the steering head pipe 101. Can be attached. At this time, the support member 11 and the boss portion 30 of the accelerator position sensor 10 are not directly in contact with each other, and the spacer 13 is interposed. That is, since the accelerator position sensor 10 is supported in a floating manner with respect to the steering head pipe 101, vibration of the motorcycle 100 can be prevented from being transmitted to the accelerator position sensor 10.

Thus, in the accelerator position sensor mounting structure of the present embodiment, the accelerator position sensor 10 is mounted on the steering head pipe 101 on the right side of the vehicle body center line. Here, since the throttle grip 109 is provided on the right side of the handlebar 108, the length of the throttle cable 20 extending from the throttle grip 109 can be increased by placing the accelerator position sensor 10 on the right side of the vehicle body center line. Can be shortened. Therefore, the arrangement of the throttle cable 20 is facilitated, and a layout in which the play of the throttle cable 20 hardly changes when the handle is fully closed is possible.
In addition, since the accelerator position sensor 10 is disposed near the center of the steering mechanism, the layout does not affect the operability and is less affected by the heat source such as the engine 107. .

  In the accelerator position sensor mounting structure of the present embodiment, the accelerator position sensor 10 is mounted between the steering head pipe 101 and the right front fork 105. Specifically, the accelerator position sensor 10 partially or entirely overlaps with the front fork 105 when viewed from the side as shown in FIG. 1, and the steering head pipe 101 when viewed from the front as shown in FIG. And between the right front fork 105. Therefore, the accelerator position sensor 10 can be protected from mud and splashes during traveling by the right front fork 105.

  Further, in the accelerator position sensor mounting structure of the present embodiment, if the headlamp unit 118 is removed, the accelerator position sensor 10 can be easily accessed from the front side. Further, the accelerator position sensor 10 can be easily acceleratord from the rear side through the space between the steering head pipe 101 and the right front fork 105 without removing the headlamp unit 118. Therefore, the maintainability of the accelerator position sensor 10 is excellent.

  In addition, the accelerator position sensor mounting structure of the present embodiment can be configured by forming the boss portion 30 in the steering head pipe 101 and adding only the spacer 13 and bolt 16 parts. Therefore, the cost of the accelerator position sensor mounting structure can be reduced.

  In the first embodiment, the axial direction of the screw hole 31 of the boss portion 30 is the vehicle width direction, the bolt 16 is inserted through the insertion hole 14 of the spacer 13 along the vehicle width direction, and the screw hole 31 of the boss portion 30 is inserted. However, the present invention is not limited to this case. For example, the axial direction of the screw hole 31 of the boss part 30 may be the front-rear direction, the bolt 16 may be inserted through the insertion hole 14 of the spacer 13 along the front-rear direction, and may be screwed into the screw hole 31 of the boss part 30. In this case, the accelerator position sensor 10 can be easily attached to the steering head pipe 101 by accessing from the front side or the rear side.

(Second Embodiment)
In the second embodiment, a case where the accelerator position sensor 10 is attached in the vicinity of the steering head pipe 101 will be described. FIG. 5 is a plan view showing a mounting structure of the accelerator position sensor 10. FIG. 6 is a right side view showing a mounting structure of the accelerator position sensor 10. In addition, the same code | symbol is attached | subjected to the structure similar to 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 6, a pair of left and right reinforcing members 122 are disposed on the body frame at positions surrounded by the upper frame 102, the lower frame 103, and the steering head pipe 101. The reinforcing member 122 has a substantially plate shape and is coupled to the upper frame 102, the lower frame 103, and the steering head pipe 101 by welding or the like.

The accelerator position sensor 10 is attached to the outer surface of the right reinforcing member 122 of the pair of reinforcing members 122. That is, the accelerator position sensor 10 is mounted on the right side of the vehicle body center line (straight line L) and in the vicinity of the steering head pipe 101. Specifically, the accelerator position sensor 10 is located in a region R1 between the foremost end of the steering head pipe 101 and the foremost end of the engine 107 (cylinder head cover) when viewed from a plane as shown in FIG. doing. Further, when viewed from the side as shown in FIG. 6, the accelerator position sensor 10 is located in a region R <b> 2 between the uppermost end and the lowermost end of the steering head pipe 101. The position where the accelerator position sensor 10 is attached is covered by the front side of the fuel tank 117.
In addition, when attaching the accelerator position sensor 10 to the reinforcement member 122, it attaches to the reinforcement member 122 by fixing to the boss | hub part 30 with the volt | bolt 16 via the spacer 13, like 1st Embodiment.

  Thus, in the accelerator position sensor mounting structure of the present embodiment, the accelerator position sensor 10 is mounted on the right side of the vehicle body center line and in the vicinity of the steering head pipe 101. Therefore, the arrangement of the throttle cable 20 is facilitated, and a layout that does not easily change the play of the throttle cable 20 when the steering wheel is stationary is possible.

  Further, in the mounting structure of the present embodiment, it is mounted behind the steering head pipe 101 and between the upper frame 102 and the lower frame 103. Since this position is covered by the front side of the fuel tank 117, the accelerator position sensor 10 can be protected from mud, splashes and the like during traveling by the fuel tank 117. Further, in the accelerator position sensor mounting structure of this embodiment, the accelerator position sensor 10 can be easily accessed by removing the fuel tank 117.

  In the second embodiment, the case where the accelerator position sensor 10 is attached to a position covered by the front side of the fuel tank 117 has been described. However, the present invention is not limited to this case, and the accelerator position sensor 10 may be attached to a position covered by a cover such as the shroud 119. .

  In the first embodiment and the second embodiment described above, the case where the handle bar 108 is coupled to the upper end of the fork bracket 104a has been described. However, the present invention is not limited to this case, and the pair of left and right handle bars 108 are respectively paired with left and right handle bars 108a. It may be coupled to the front fork 105. Even in this case, the accelerator position sensor 10 is located on the right side of the vehicle body center line and in the vicinity of the steering head pipe 101, so that the arrangement of the throttle cable 20 is facilitated, and the throttle when the steering wheel is fully closed. A layout in which the play of the cable 20 hardly changes is possible.

As mentioned above, although this invention was demonstrated with various embodiment, it is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.
In the above embodiment, the mounting structure of the accelerator position sensor 10 in a motorcycle has been described. However, the application destination of the present invention is not limited to a motorcycle, and may be a vehicle such as a tricycle or a four-wheel vehicle.

  10: Accelerator position sensor 100: Motorcycle 101: Steering head pipe 102: Upper frame 103: Lower frame 104a, 104b: Fork bracket 105: Front fork 107: Engine 117: Fuel tank

Claims (3)

Body frame,
A handlebar attached to the upper side of the steering head pipe at the front end of the body frame;
A throttle grip provided at an end of the handlebar;
An accelerator position sensor for detecting an operation amount of the throttle grip, and an accelerator position sensor mounting structure for a vehicle comprising:
A structure for mounting an accelerator position sensor for a vehicle, wherein the accelerator position sensor is mounted on a right side of a vehicle body center line and in the vicinity of the steering head pipe. It has a front fork that supports the wheels,
The structure for mounting an accelerator position sensor for a vehicle according to claim 1, wherein the accelerator position sensor is mounted between the steering head pipe and the front fork.   The accelerator position sensor is located behind the steering head pipe and extends between an upper frame extending rearward from the steering head pipe and a lower frame extending obliquely rearwardly downward from the steering head pipe. The vehicle accelerator position sensor mounting structure according to claim 1, wherein the vehicle accelerator position sensor is mounted on the vehicle.

Images