JP2010053836A - Throttle operation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a throttle operation device transmitting the rotational angle of a throttle lever to an engine with high accuracy. <P>SOLUTION: This throttle operation device includes the throttle lever 1 provided in the vicinity of a grip G attached to the end of the handlebar H of a vehicle and rotated while gripping the grip G, and a support member 2 fixed to the handlebar H and rotatably supporting the throttle lever 1. The throttle lever 1 extends from the support member 2, and the engine of the vehicle is controlled based on the rotational angle of the throttle lever 1. A storage space A is formed in the support member 2, and an angle sensor 10 detecting the rotational angle of the throttle lever 1 is stored in the storage space A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a throttle operation device in which a vehicle engine is controlled by a rotation operation of a throttle lever.

  In ATVs, buggies, and the like, a steering handlebar is usually provided, and a throttle operating device for controlling the engine is disposed on the handlebar. As disclosed in, for example, Patent Document 1, this throttle operating device is disposed in the vicinity of a grip grip attached to the front end of a handlebar, and can be rotated while gripping the grip grip. And a support member fixed to the handle bar and rotatably supporting the throttle lever.

The support member is fixed in the vicinity of the handlebar grip in the handlebar, and is configured to be operable by extending the tip side to the side while suspending the throttle lever to form a rotating shaft. However, an operation wire is connected between the throttle lever and the throttle body of the engine. When the throttle lever is rotated, the operation wire is pulled according to the rotation angle, and the throttle body is operated. The engine included in the vehicle can be controlled.
JP 2004-10016 A

  However, in the above conventional slot operation device, the operation of the throttle lever is transmitted to the engine side such as the throttle body via the operation wire, so that the operation amount (rotation operation angle) of the throttle lever can be accurately determined. There was a problem that it was difficult to communicate to the side. In recent years, instead of adjusting the fuel injection amount using a carburetor or the like, the one that directly controls the fuel injection amount is becoming mainstream, so the operation amount of the throttle lever is accurately transmitted to the engine side. It is extremely important.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a throttle operation device capable of accurately transmitting a rotation operation angle of a throttle lever to the engine side.

  The invention according to claim 1 is provided in the vicinity of a grip grip attached to the front end of a handlebar of a vehicle, and is fixed to the handlebar and a throttle lever that is rotatable while gripping the grip grip. A support member that rotatably supports the throttle lever, the throttle lever extending from the support member, and for controlling the engine of the vehicle based on a rotation operation angle of the throttle lever. In the throttle operation device, an accommodation space is formed in the support member, and a detection sensor for detecting a rotation operation angle of the throttle lever is accommodated in the accommodation space.

  According to a second aspect of the present invention, in the throttle operating device according to the first aspect, a first gear that rotates together with the throttle lever, and a second gear that is smaller in diameter than the first gear and meshes with the first gear and can be interlocked. A gear and a magnet formed on the second gear are provided, and the detection sensor includes an angle sensor that detects a magnetic change from the magnet and detects a rotation angle thereof.

  According to a third aspect of the present invention, in the throttle operating device according to the second aspect, the angle sensor is disposed on a substrate on which a predetermined electric circuit is formed, and the substrate is accommodated in the accommodating space. It is arrange | positioned in a storage box and the said storage box is filled with resin, It is characterized by the above-mentioned.

  According to a fourth aspect of the present invention, in the throttle operation device according to the third aspect, the first gear and the second gear are disposed below the storage box.

  According to the first aspect of the present invention, the accommodation space is formed in the support member, and the detection sensor for detecting the rotation operation angle of the throttle lever is accommodated in the accommodation space. It can be transmitted well to the engine side. In addition, the support member for supporting the throttle lever also serves as a housing case for housing the detection sensor, so that the number of parts and the manufacturing cost can be reduced.

  According to the second aspect of the present invention, the first gear that rotates together with the throttle lever, the second gear that is smaller in diameter than the first gear, and meshes with the first gear, and the second gear is formed on the second gear. And the detection sensor includes an angle sensor that detects a magnetic change from the magnet and detects a rotation angle thereof, so that the rotation operation angle of the throttle lever can be detected with higher accuracy. .

  According to the invention of claim 3, the angle sensor is disposed on a substrate on which a predetermined electric circuit is formed, and is disposed in a storage box in which the substrate is stored in a storage space. Is filled with resin, so that the angle sensor and its electric circuit can be waterproofed.

  According to the invention of claim 4, since the first gear and the second gear are disposed below the storage box, the angle sensor and its electric circuit are waterproofed, and at the same time, the first gear and the second gear below the Waterproofing can also be achieved.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The throttle grip device according to the present embodiment is used for controlling an engine of a vehicle that is fixed to a handlebar of a vehicle such as an ATV or a buggy. As shown in FIGS. It is mainly composed of a so-called throttle lever 1, a support member 2, and an angle sensor 10 as a detection sensor. In addition, the code | symbol H has shown the handlebar for steering which a vehicle comprises, and the code | symbol G has shown the grip grip attached to the front-end | tip of the said handlebar H, and a driver | operator can hold | grip.

  The throttle lever 1 is disposed in the vicinity of the grip grip G, and can be rotated while gripping the grip grip G. The throttle lever 1 has an operation portion 1a at an extended end and a shaft portion as a rotation shaft. 1b is integrally formed. That is, the shaft portion 1b extends vertically to form a rotation shaft, and the operation portion 1a extends from the side to extend the thumb holding the grip grip G and presses the operation portion 1a. By doing so, the turning operation is made possible.

  The support member 2 is fixed to the handle bar H and supports the throttle lever 1 so as to be rotatable. The support member 2 has a storage space A formed therein by a storage case 2a and a lid member 2b. Specifically, a holder 3 that can hold the handle bar H is formed on the support member 2, and the support member 2 is fixed to the handle bar H by tightening the holder 3 with a bolt B. It is like that.

  A through hole Aa is formed downward from the housing space A, and the shaft portion 1b of the throttle lever 1 is inserted into the through hole Aa. In this state, the shaft portion 1b is made rotatable in the through hole Aa by the bush 4, and the proximal end side is urged by the return spring Sa made of a torsion spring, so that the throttle lever 1 is always attached to the initial position side. It is configured to be able to force. Reference numeral 6 in the drawing denotes a sealing member such as an oil seal. Thus, the sealing member 6 seals the through hole Aa, and the packing 12 is interposed between the housing case 2a and the lid member 2b, so that the housing space A of the support member 2 is substantially closed. It is a space.

  Further, a first gear 7 integrally formed with the throttle lever 1 by a nut N is attached to the base end side of the shaft portion 1b, and the first gear 7 can rotate together with the throttle lever 1. ing. The first gear 7 has teeth formed on the outer peripheral surface thereof, and a pair of second gears 8 are disposed so as to mesh with the teeth. The second gear 8 is composed of two gears having a smaller diameter than that of the first gear (1/2 in this embodiment), and the throttle lever 1 is rotated to rotate the shaft portion 1b and the first gear 7. Then, in conjunction with it, each can rotate around the axis L (see FIG. 6).

  The second gear 8 is formed with a magnet 5, and the magnet 5 can be rotated together with the second gear 8. The magnet 5 may be magnetized on a part of the second gear 8 or may be a permanent magnet or the like. Further, as shown in FIGS. 5 and 6, each second gear 8 is provided with a gear spring Sb that urges each gear in a predetermined direction to absorb backlash in meshing with the first gear 7. To get.

  The angle sensor 10 detects a magnetic change from the magnet 5 and detects a rotation angle thereof. A predetermined circuit is disposed on the substrate 11 formed by printing or the like, and each of the second sensors described above. It is arranged at a position corresponding to the gear 8 and the magnet 5 (a position on the extension line of the axis L), and is configured to detect the rotation angle of the second gear 8. That is, when the first gear 7 and the second gear 8 are rotated along with the turning operation of the throttle lever 1 and the magnet 5 is rotated at the same time, the output signal of the angle sensor 10 is increased or decreased by the change of the magnetic field generated from the magnet 5. Therefore, the rotation operation angle of the throttle lever 1 can be detected based on the output signal.

  The detection signal is sent to the ECU of the two-wheeled vehicle via a cord h extended from the board 11, and engine control (output control based on the rotation angle of the throttle lever 1) based on the detection signal is performed. Done. Note that, for example, it is preferable that each angle sensor 10 outputs two output signals. In this case, if each output voltage is configured to change in the opposite direction, when one angle sensor 10 or wiring is broken, the output voltage from the angle sensor 10 is reduced and the sum of the output signals is different. Therefore, it can be recognized that there is a problem in the one angle sensor 10 or the wiring. Even in this case, various controls are performed based on the output from the other angle sensor 10, and safety can be ensured. According to this throttle grip device, the rotation angle of the throttle lever 1 can be detected by the angle sensor 10 in a non-contact manner. Can be improved.

  Further, the substrate 11 on which the angle sensor 10 is disposed is disposed in the housing box 9 housed in the housing space A, and the housing box 9 is filled with a predetermined resin. Yes. Thereby, the board | substrate 11 and the angle sensor 10 in the storage box 9 will be molded with resin. Thus, a gear group including the first gear 7 and the second gear 8 is disposed below the storage box 9, for example, the sealing function between the storage case 2 a and the lid member 2 b is impaired. Thus, even if there is water from the top, it is possible to prevent the gear county from being exposed to water. The storage box 9 has recesses formed at positions corresponding to the base end of the shaft portion 1 b of the throttle lever 1 and one end of the shaft L of the second gear 8.

  According to the above embodiment, the accommodation space A is formed in the support member 2, and the angle sensor 10 (detection sensor) for detecting the rotation operation angle of the throttle lever 1 is accommodated in the accommodation space A. 1 rotation operation angle can be accurately transmitted to the engine side. Further, the support member 2 for supporting the throttle lever 1 also serves as a housing case for housing the angle sensor 10 (detection sensor), so that the number of parts and the manufacturing cost can be reduced.

  Further, a first gear 7 that rotates together with the throttle lever 1, a second gear 8 that has a smaller diameter than the first gear 7 and can be interlocked with the first gear 7, and the second gear 8 are formed. Since the angle sensor 10 detects a magnetic change from the magnet and detects the rotation angle thereof, the rotation operation angle of the throttle lever 1 can be detected with higher accuracy. be able to.

  Furthermore, the angle sensor 10 is disposed on the substrate 11 on which a predetermined electric circuit is formed, and is disposed in the housing box 9 in which the substrate 11 is housed in the housing space A. Is filled with resin, so that the angle sensor 10 and its electric circuit can be waterproofed. In addition, since the first gear 7 and the second gear 8 are disposed below the storage box 9, the first gear 7 and the second gear 8 (gear) below the angle sensor 10 and the electrical circuit thereof are waterproofed simultaneously. Group) can be waterproofed.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, if the throttle opening degree is controlled by electrically detecting the rotation angle of the throttle lever, the angle sensor Instead of 10, other detection sensors (including non-contact type sensors as in the present embodiment and contact type sensors such as potentiometers) may be used. Further, the rotation angle of the throttle lever 1 may be directly detected by a detection sensor, and a gear group including the first gear 7 and the second gear 8 may be unnecessary. In this embodiment, it is assumed that it is attached to the handlebar of ATV or buggy, but it may be attached to another vehicle having a handlebar (for example, a snowmobile).

  As long as the throttle operating device has an accommodating space formed in the support member and a detection sensor for detecting the rotation operation angle of the throttle lever is accommodated in the accommodating space, one having a different external shape or another function is added. It can also be applied to other things.

The front view which shows the external appearance of the throttle operation apparatus which concerns on embodiment of this invention Side view showing the appearance of the throttle operating device Sectional view taken along line III-III in FIG. IV-IV line sectional view in FIG. Sectional view taken along line VV in FIG. Sectional view taken along line VI-VI in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Throttle lever 1a Operation part 1b Shaft part 2 Support member 3 Holder 4 Bush 5 Magnet 6 Seal member 7 1st gear 8 2nd gear 9 Storage box 10 Angle sensor (detection sensor)
11 Substrate 12 Packing A Housing space H Handlebar B Bolt N Nut G Grip grip Sa Return spring Sb Gear spring

Claims (4)

A throttle lever that is disposed in the vicinity of the grip grip attached to the front end of the handlebar of the vehicle, and that can be rotated while gripping the grip grip;
A support member fixed to the handlebar and rotatably supporting the throttle lever;
In the throttle operation device for extending the throttle lever from the support member and controlling the engine of the vehicle based on the rotation operation angle of the throttle lever,
A throttle operating device, wherein an accommodation space is formed in the support member, and a detection sensor for detecting a rotation operation angle of the throttle lever is accommodated in the accommodation space. A first gear that rotates with the throttle lever;
A second gear that has a smaller diameter than the first gear and is capable of engaging with and engaging with the first gear;
A magnet formed on the second gear;
2. The throttle operating device according to claim 1, wherein the detection sensor includes an angle sensor that detects a rotation angle by detecting a magnetic change from the magnet.   The angle sensor is disposed on a substrate on which a predetermined electric circuit is formed, the substrate is disposed in a housing box accommodated in the housing space, and the housing box is filled with resin. The throttle operating device according to claim 2.   The throttle operating device according to claim 3, wherein the first gear and the second gear are disposed below the storage box.

Images