Throttle operating device

Abstract

Provided is a throttle operating device capable of increasing a rotation angle of an operation means while suppressing an increase in the size of the device, and capable of reducing a set load of a biasing means.　This throttle operating device comprises: an interlocking member 1; magnets m rotatable together with the interlocking member 1; a magnetic sensor 2 capable of detecting a magnetic change of the magnets m; a first biasing means 3 for biasing at the time of rotating operation of a throttle grip G in one direction α; and a second biasing means 4 for biasing at the time of rotating operation of the throttle grip G in the other direction β. The first biasing means 3 and the second biasing means 4 are composed of a torsion coil spring. Further, a biasing force of the first biasing means 3 is applied to the throttle grip G at the time of the rotating operation of the throttle grip G in the one direction α, and biasing forces of the first biasing means 3 and the second biasing means 4 are applied to the throttle grip G at the time of the rotating operation of the throttle grip G in the other direction β.

Description

Throttle operation device

[0001] The present invention relates to a throttle operating device in which a drive source of a vehicle is controlled based on the rotational operation of an operating means.

[0002] Recently, throttle operating devices have become common in motorcycles, which are configured to detect the rotation angle of the throttle grip with a sensor and send the detected value as an electrical signal to an electronic control device or the like mounted on the motorcycle. In such motorcycles, the electronic control device performs a predetermined calculation based on the detection signal, and the drive source of the vehicle (engine, motor, etc.) is controlled based on the calculation results.

[0003] An example of a conventional throttle operating device is that disclosed in Patent Document 1. This conventional throttle operating device has a magnet attached to an interlocking member that interlocks with the throttle grip, and a magnetic sensor detects magnetic changes in the magnet to detect the rotation angle of the interlocking member and the throttle grip, thereby controlling the drive source.

[0004] Furthermore, Patent Document 1 discloses a conventional throttle operating device equipped with a throttle grip that can be rotated forward and backward. This throttle operating device is equipped with a forward rotation return spring that urges the throttle grip and interlocking member toward their initial positions when the throttle grip is rotated forward, and a reverse rotation return spring that urges the throttle grip and interlocking member toward their initial positions when the throttle grip is rotated backward.

[0005] Japanese Patent Application Laid-Open No. 2020-122476

[0006] However, in the above-mentioned conventional technology, the reverse return spring is a coil spring, which makes it difficult to increase the angle of rotation of the throttle grip (operating means) in the reverse direction. Since a coil spring is typically shaped to extend in a substantially linear manner, increasing the angle of rotation of the throttle grip in the reverse direction necessitates increasing the longitudinal dimension of the coil spring. Thus, in conventional throttle operating devices, if the longitudinal dimension of the reverse return spring is increased, the case that houses the reverse return spring must also be enlarged, resulting in a problem of increased device size.

[0007] Furthermore, in conventional throttle operating devices, a forward rotation return spring generates a biasing force when the throttle grip is rotated forward, and a reverse rotation return spring generates a biasing force when the throttle grip is rotated reversely, and it was necessary to set separate and independent loads for each return spring (biasing means) according to the required biasing force. As a result, in conventional throttle operating devices, the dimensions of the biasing means for forward rotation and reverse rotation were large, which could be a factor in the device becoming larger.

[0008] The present invention has been made in consideration of the above circumstances, and aims to provide a throttle operating device that can increase the rotation angle of the operating means while suppressing the size of the device, and can reduce the set load of the biasing means.

[0009] The invention of claim 1 includes an interlocking member that can rotate together with a rotation operation in one direction and a rotation operation in the other direction of an operating means of a vehicle; a magnet attached to the interlocking member and rotatable together with the interlocking member; a rotation angle detection means that can detect a rotation angle of the operating means by detecting a magnetic change in the magnet that rotates together with the interlocking member; a first biasing means that biases the operating means and the interlocking member toward an initial position when the operating means is rotated in one direction; and a second biasing means that biases the operating means and the interlocking member toward an initial position when the operating means is rotated in the other direction. and second biasing means for biasing a member of the operating means toward an initial position, and capable of controlling a drive source of a vehicle in accordance with the rotation angle of the operating means detected by the rotation angle detection means, wherein the first biasing means and second biasing means are made of torsion coil springs, and when the operating means is rotated in one direction, the biasing force of the first biasing means is applied to the operating means, and when the operating means is rotated in the other direction, the biasing forces of the first biasing means and second biasing means are applied to the operating means.

[0010] The invention of claim 2 is characterized in that, in the throttle operating device of claim 1, the operating means comprises a throttle grip that can be gripped and rotated by the driver, and by rotating the throttle grip in one direction, the vehicle's drive source can be controlled, and by rotating the throttle grip in the other direction, a specified device mounted on the vehicle can be activated or the operation of the device can be stopped.

[0011] According to a third aspect of the present invention, in the throttle operating device of the first aspect, the first and second biasing means are formed of torsion coil springs having the same set load or different set loads.

[0012] The invention of claim 4 is characterized in that, in the throttle operating device of claim 1, it is provided with a spring case to which the respective ends of the first and second biasing means can be positioned and attached, and the interlocking member is attached to the spring case, and when it rotates in one direction, it generates a biasing force in the first biasing means, and when it rotates in the other direction, it generates a biasing force in the first and second biasing means.

[0013] The invention of claim 5 is characterized in that, in the throttle operating device of claim 4, the interlocking member is formed with a pressing portion that, when rotating in one direction, presses an end of the first biasing means to generate a biasing force in the first biasing means, and, when rotating in the other direction, presses the ends of the first biasing means and the second biasing means to generate a biasing force in the first biasing means and the second biasing means.

[0014] The invention of claim 6 is characterized in that, in the throttle operating device of claim 5, the spring case has an end positioning portion that positions the ends of the first and second biasing means, a first positioning portion that positions the coil portion of the first biasing means, and a second positioning portion that positions the coil portion of the second biasing means.

[0015] According to a seventh aspect of the present invention, in the throttle operating device of the sixth aspect, the spring case has the first biasing means attached to one surface thereof and the second biasing means attached to the other surface thereof.

[0016] According to the invention of claim 1, the first and second biasing means are made of torsion coil springs, and when the operating means is rotated in one direction, the biasing force of the first biasing means is applied to the operating means, and when the operating means is rotated in the other direction, the biasing forces of the first and second biasing means are applied to the operating means.This makes it possible to increase the rotation angle of the operating means while preventing the device from becoming larger, and to reduce the set load of the biasing means.

[0017] According to the invention of claim 2, by rotating the throttle grip in one direction, it is possible to control the vehicle's drive source, and by rotating the throttle grip in the other direction, it is possible to operate or stop the operation of a specific device installed in the vehicle, so that the biasing force can be greater when the throttle grip is rotated in the reverse direction than when it is rotated in the forward direction.

[0018] According to the invention of claim 3, the first and second biasing means are made of torsion coil springs with the same set load or different set loads, so that by combining the set loads, it is possible to easily set the biasing force when the operating means is rotated in one direction and the biasing force when the operating means is rotated in the other direction.

[0019] According to the invention of claim 4, the interlocking member is attached to the spring case, and when it rotates in one direction, it generates a biasing force in the first biasing means, and when it rotates in the other direction, it generates a biasing force in the first biasing means and the second biasing means.Therefore, by attaching the first biasing means and the second biasing means to the spring case, it is possible to selectively generate a biasing force according to the rotation direction of the operating means.

[0020] According to the invention of claim 5, when the interlocking member rotates in one direction, it presses the end of the first biasing means to generate a biasing force in the first biasing means, and when it rotates in the other direction, it has a pressing portion that presses the ends of the first biasing means and the second biasing means to generate a biasing force in the first biasing means and the second biasing means, so that a biasing force can be smoothly generated according to the rotation direction of the operating means.

[0021] According to the invention of claim 6, the spring case has end positioning portions that position the ends of the first and second biasing means, a first positioning portion that positions the coil portion of the first biasing means, and a second positioning portion that positions the coil portion of the second biasing means, so that the first and second biasing means can be reliably attached to predetermined positions on the spring case.

[0022] According to the invention of claim 7, the spring case has the first biasing means attached to one side and the second biasing means attached to the other side, so that the first biasing means and the second biasing means can be attached separately to the front and back sides of the spring case, and interference between the first biasing means and the second biasing means can be reliably avoided.

[0023] 2 is a perspective view showing the appearance of a throttle operating device according to an embodiment of the present invention; a front view and a left side view showing the throttle operating device; a cross-sectional view taken along line III-III in FIG. 2; a cross-sectional view taken along line IV-IV in FIG. 2; a cross-sectional view taken along line V-V in FIG. 2; an exploded perspective view showing the throttle operating device; a three-sided view showing a unit made up of an interlocking member of the throttle operating device, a spring case, etc.; a perspective view showing the unit; a perspective view showing the interlocking member and first biasing means removed from the unit; an exploded perspective view showing the internal configuration of the unit; an exploded perspective view showing the internal configuration of the unit; a three-sided view showing the spring case of the unit; a three-sided view showing the interlocking member of the unit; front and rear views showing the first biasing means attached to one surface of the unit and the second biasing means attached to the other surface of the unit; a schematic view showing the positional relationship of each part when the interlocking member of the throttle operating device is in an initial position; a schematic view showing the positional relationship of each part when the interlocking member of the throttle operating device is rotated in the forward direction (one direction);

[0024] An embodiment of the present invention will now be described in detail with reference to the drawings. As shown in Figure 1, the throttle operating device according to this embodiment detects the rotation angle of a throttle grip G (operating means) attached to the handlebar H of a motorcycle and transmits the detection signal to an electronic control device such as an ECU mounted on the motorcycle. Specifically, as shown in Figures 1 to 11, the throttle operating device according to this embodiment includes an interlocking member 1, a magnet m, a magnetic sensor 2 (rotation angle detecting means), a first biasing means 3, a second biasing means 4, a resistance force applying means 6, and a case C.

[0025] The throttle grip G can be rotated around an axis while being gripped by the driver, and as shown in Figures 3 and 6, a fitting portion Ga is formed at the base end. The fitting portion Ga is fitted into the fitted portion 1a of the interlocking member 1, thereby locking the throttle grip G and the interlocking member 1 in the rotational direction. This allows the interlocking member 1 to rotate together with the rotation of the throttle grip G.

[0026] The interlocking member 1 can rotate in one direction α (forward direction) and in the other direction β (reverse direction) relative to the vehicle throttle grip G, and is made of a substantially cylindrical resin molded product as shown in Figures 9 to 11. Specifically, as shown in Figure 13, the interlocking member 1 is formed with a fitted portion 1a into which the base end portion of the throttle grip G can be fitted, a plurality of first accommodating recesses 1b (three in this embodiment) each for accommodating a magnet m, a plurality of second accommodating recesses 1c (two in this embodiment) for accommodating the resistance force applying means 6, and a protruding pressing portion 1d.

[0027] The interlocking member 1 is mounted with a magnet m fitted into each of the first accommodating recesses 1b, and a resistance force applying means 6 and a coil spring 7 fitted into each of the second accommodating recesses 1c. The magnets m are each formed in a block shape (a cubic or rectangular parallelepiped shape with a rectangular cross section), and by being mounted in the first accommodating recesses 1b, they are arranged in an arc shape with a predetermined distance between them. The first accommodating recesses 1b, which are arranged in an arc shape, are covered with a cover member R (see Figures 10 and 11), which prevents the magnets m fitted into the first accommodating recesses 1b from falling out.

[0028] The resistance applying means 6 generates friction when the interlocking member 1 rotates, thereby applying resistance when the throttle grip G is rotated, and as shown in Figures 10 and 11, is made of a cylindrical friction material, and is assembled by being pressed onto the surface of the cover 8 by the biasing force of the coil spring 7. The cover 8 is fixed to the spring case 5 with the mounting screw n while covering the resistance applying means 6, so that when the interlocking member 1 rotates, the resistance applying means 6 slides, generating friction.

[0029] The case C is fixed to the tip end side (the base end side of the throttle grip G) of the handlebar H (see Figures 1 to 3) of the motorcycle (vehicle), and as shown in Figure 6, the lower case Ca and the upper case Cb are assembled by tightening them with mounting bolts B. The lower case Ca and the upper case Cb each have an accommodation recess formed inside, and when the lower case Ca and the upper case Cb are fitted together and assembled, an accommodation space is formed inside.

[0030] 1 to 6, the lower case Ca is formed with a housing portion Caa that houses a substrate K on which a magnetic sensor 2 is attached. The magnetic sensor 2 (rotation angle detection means) is made up of a sensor disposed in the housing portion Caa of the lower case Ca, and is capable of detecting the rotation angle of the interlocking member 1 and the throttle grip G by detecting changes in magnetism generated by the magnet m. Note that the symbol h in the figures indicates a wire extending from the magnetic sensor 2, and a detection signal is transmitted to the vehicle side via the wire h.

[0031] Specifically, the magnetic sensor 2 can obtain an output voltage corresponding to the change in the magnetic field (change in magnetic flux density) of the magnet m accompanying the rotation of the interlocking member 1, and is configured, for example, with a Hall element, which is a magnetic sensor utilizing the Hall effect (specifically, a linear Hall IC that can obtain an output voltage proportional to the magnetic field (magnetic flux density) of the magnet m). When the throttle grip G is rotated to rotate the interlocking member 1, the magnetism acting on the magnetic sensor 2 changes as the multiple magnets m rotate.

[0032] 15 to 17, three magnets m according to this embodiment are arranged around the circumferential direction of the interlocking member 1 (a magnet m1 in the center, and magnets m2 and m3 at both ends), and the poles (north or south) on the outsides (the sides facing the magnetic sensor 2) of the magnets (m2 and m3) at both ends are set to be different from the pole (north or south) on the outside of the magnet m1 at the center. For example, the magnet m1 at the center can be arranged so that its outside is a north pole and its inside is a south pole, and the two adjacent magnets m2 and m3 at both ends each have a south pole on the outside and a north pole on the inside.

[0033] As a result, in the throttle operating device according to this embodiment, magnetism changes depending on the rotation angle of the interlocking member 1, so an output voltage corresponding to the rotation angle can be obtained and the rotation angle of the interlocking member 1 (i.e., the rotation angle of the throttle grip G) can be detected based on the output voltage. The rotation angle of the throttle grip G detected in this way is transmitted as an electric signal to an ECU (engine control unit) mounted on the motorcycle, and the drive source of the vehicle (engine, motor, etc.) can be controlled according to the transmitted rotation angle of the throttle grip G.

[0034] Furthermore, the magnetic sensor 2 according to this embodiment is capable of detecting rotation of the throttle grip G in one direction α (forward direction) as well as rotation in the other direction β (reverse direction). As a result, the throttle operating device according to this embodiment can control the drive source in accordance with the rotation angle of the throttle grip G by the driver rotating the throttle grip G in one direction α from the initial position while gripping the throttle grip G, enabling driving at any speed, and can activate or deactivate electrical equipment (for example, a cruise control cancel function) mounted on the vehicle by rotating the throttle grip G in the other direction β from the initial position.

[0035] The spring case 5 can be attached by positioning the respective ends of the first biasing means 3 and the second biasing means 4, and as shown in Figures 6 to 8, the interlocking member 1 is attached to form an integrated unit Y. Such unit Y is configured integrally by attaching the interlocking member 1 to the spring case 5 to which the first biasing means 3 and the second biasing means 4 are attached, and also has a retaining member 9 attached.

[0036] 12, the spring case 5 has formed on one surface thereof end positioning portions 5aa, 5ab that position the ends (one end 3a and the other end 3b) of the first biasing means 3, and a first positioning portion 5b that positions the coil portion 3c of the first biasing means 3. Specifically, as shown in FIG. 14(a), the end positioning portion 5aa consists of a wall surface that abuts against the one end 3a of the first biasing means 3, and the end positioning portion 5ab consists of a wall surface that abuts against the other end 3b of the first biasing means 3, so that both end portions of the first biasing means 3 can be positioned. The first positioning portion 5b matches with the coil portion 3c of the first biasing means 3, so that the coil portion 3c can be positioned.

[0037] 12, the spring case 5 has, on the other surface thereof, end positioning portions 5ac, 5ad for positioning the ends (one end 4a and the other end 4b) of the second biasing means 4, and a second positioning portion 5c for positioning the coil portion 4c of the second biasing means 4. Specifically, as shown in FIG. 14(b), the end positioning portion 5ac consists of a wall surface that abuts against the other end 4b of the second biasing means 4, and the end positioning portion 5ad consists of a notch into which the one end 4a of the second biasing means 4 is fitted, thereby enabling positioning of both ends of the second biasing means 4. The second positioning portion 5c matches with the coil portion 4c of the second biasing means 4, enabling positioning of the coil portion 4c.

[0038] Then, when the first biasing means 3 and the second biasing means 4 are attached to the spring case 5 while positioning them, and then the interlocking member 1 is attached to the accommodating recess 5d to form the unit Y, the pressing portion 1d of the interlocking member 1 is configured to pass through the arc-shaped opening 5e formed in the spring case 5. By moving along the opening 5e, the pressing portion 1d is able to press one end 3a and the other end 3b of the first biasing means 3 and also to press the other end 4b of the second biasing means 4. In other words, the pressing portion 1d does not extend to the position of one end 4a of the second biasing means 4, and does not press the one end 4a in the process of moving along the opening 5e.

[0039] The first biasing means 3 is made of a torsion coil spring that biases the throttle grip G and the interlocking member 1 toward their initial positions when the throttle grip G is rotated in one direction α and the other direction β, and is configured to have one end 3a, the other end 3b, and a coil portion 3c as shown in Figures 10 and 11. The first biasing means 3 is attached to one surface of the spring case 5 as shown in Figure 14(a), and one end 3a or the other end 3b is pressed by the pressing portion 1d of the interlocking member 1.

[0040] For example, when the throttle grip G (see Figure 15) in the initial position is rotated in one direction α to rotate the interlocking member 1, as shown in Figure 16, the pressing portion 1d of the interlocking member 1 presses one end 3a of the first biasing means 3 to rotate it, and the other end 3b abuts against the end positioning portion 5ab formed on the spring case 5 to restrict the rotation, so that a biasing force corresponding to the rotation angle of the one end 3a is generated.

[0041] Furthermore, when the throttle grip G, which is in the initial position, is rotated in the other direction β to rotate the interlocking member 1, as shown in Figure 17, the pressing portion 1d of the interlocking member 1 presses the other end 3b of the first biasing means 3 to rotate it, and one end 3a abuts against the end positioning portion 5aa formed on the spring case 5 to restrict the rotation, thereby generating a biasing force corresponding to the rotation angle of the other end 3b.

[0042] The second biasing means 4 is made of a torsion coil spring that biases the throttle grip G and the interlocking member 1 toward their initial positions when the throttle grip G is rotated in the other direction β, and is configured to have one end 4a, the other end 4b, and a coil portion 4c as shown in Figures 10 and 11. The second biasing means 4 is attached to the other surface of the spring case 5 as shown in Figure 14(b), and the other end 4b is pressed by the pressing portion 1d of the interlocking member 1.

[0043] For example, when the throttle grip G (see Figure 15) in the initial position is rotated in one direction α to rotate the interlocking member 1, as shown in Figure 16, one end 4a of the second biasing means 4 does not interfere with the pressing portion 1d of the interlocking member 1, so it remains fitted into the end positioning portion 5ad formed on the spring case 5, and the other end 4b remains in contact with the end positioning portion 5ac formed on the spring case 5, so no biasing force is generated.

[0044] Furthermore, when the throttle grip G, which is in the initial position, is rotated in the other direction β to rotate the interlocking member 1, as shown in Figure 17, the pressing portion 1d of the interlocking member 1 presses the other end 4b of the second biasing means 4 to rotate it, and the state in which one end 4a is fitted into the end positioning portion 5ad formed on the spring case 5 is maintained, so that a biasing force corresponding to the rotation angle of the other end 4b is generated.

[0045] In this way, the biasing means of this embodiment has a first biasing means 3 and a second biasing means 4 consisting of a torsion coil spring, and is configured so that when the throttle grip G (operating means) is rotated in one direction α, the biasing force of only the first biasing means 3 is applied to the throttle grip G, and when the throttle grip G is rotated in the other direction β, the biasing forces of both the first biasing means 3 and the second biasing means 4 are applied to the throttle grip G.

[0046] Furthermore, the first biasing means 3 and the second biasing means 4 according to this embodiment are made up of torsion coil springs with the same set load or different set loads. That is, the set load of a torsion coil spring is determined by the diameter of the wire, the number of turns of the coil, etc., so by arbitrarily selecting the set load of the torsion coil springs constituting the first biasing means 3 and the second biasing means 4, it is possible to arbitrarily generate the biasing force required for rotation in one direction α and the biasing force required for rotation in the other direction β.

[0047] According to the throttle operating device of this embodiment, when the throttle grip G (operating means) is rotated in one direction α, the biasing force of the first biasing means 3 is applied to the throttle grip G, and when the throttle grip G is rotated in the other direction β, the biasing forces of the first biasing means 3 and the second biasing means 4 are applied to the throttle grip.This makes it possible to increase the rotation angle of the throttle grip G while preventing the device from becoming larger, and to reduce the set load of the biasing means (at least one of the first biasing means 3 and the second biasing means 4).

[0048] In other words, when the throttle grip G is rotated in the other direction β, the second biasing means 4 generates a biasing force, and the first biasing means 3 also generates a biasing force, so that the biasing force of the first biasing means 3 can be used to increase the biasing force when the throttle grip G is rotated in the other direction β.

[0049] Furthermore, according to the throttle operating device of this embodiment, by rotating the throttle grip G in one direction α (forward direction), it is possible to control the vehicle's drive source, and by rotating the throttle grip G in the other direction β (reverse direction), it is possible to operate or stop the operation of a specific device mounted on the vehicle, so that the biasing force can be made greater when the throttle grip G is rotated in the reverse direction than when it is rotated in the forward direction.

[0050] Furthermore, since the first biasing means 3 and the second biasing means 4 in this embodiment are made up of torsion coil springs with the same set load or different set loads, by combining the set loads, it is possible to easily set the biasing force when the throttle grip G (operating means) is rotated in one direction and the biasing force when it is rotated in the other direction.

[0051] Furthermore, the interlocking member 1 of this embodiment is attached to the spring case 5, and when it rotates in one direction α, it generates a biasing force in the first biasing means 3, and when it rotates in the other direction β, it generates a biasing force in the first biasing means 3 and the second biasing means 4.Therefore, by attaching the first biasing means 3 and the second biasing means 4 to the spring case 5, it is possible to selectively generate a biasing force according to the rotational direction of the throttle grip G (operating means).

[0052] In addition, when the interlocking member 1 of this embodiment rotates in one direction α, it presses the end (one end 3a) of the first biasing means 3 to generate a biasing force on the first biasing means 3, and when it rotates in the other direction β, it is formed with a pressing portion 1d that presses the ends (the other end 3b of the first biasing means 3 and the other end 4b of the second biasing means 4) of the first biasing means 3 and the second biasing means 4 to generate a biasing force on the first biasing means 3 and the second biasing means 4, so that a biasing force according to the rotation direction of the throttle grip G can be smoothly generated.

[0053] Furthermore, the spring case 5 according to this embodiment has end positioning portions (5aa to 5ad) that position the ends (one end 3a, 4a and the other end 3b, 4b) of the first biasing means 3 and the second biasing means 4, a first positioning portion 5b that positions the coil portion 3c of the first biasing means 3, and a second positioning portion 5c that positions the coil portion 4c of the second biasing means 4, so that the first biasing means 3 and the second biasing means 4 can be reliably attached to predetermined positions on the spring case 5.

[0054] Furthermore, in the spring case 5 of this embodiment, the first biasing means 3 is attached to one side and the second biasing means 4 is attached to the other side, so that the first biasing means 3 and the second biasing means 4 can be attached separately to the front and back sides of the spring case 5, and it is possible to reliably prevent the first biasing means 3 and the second biasing means 4 from interfering with each other.

[0055] Although the present embodiment has been described above, the present invention is not limited to this, and for example, other types of operating means (such as an operating lever) may be used instead of the throttle grip G. Also, in this embodiment, the first and second biasing means 3 and 4 are attached to one and the other surfaces of the spring case 5, respectively, but the first and second biasing means 3 and 4 may be attached to a single accommodation space, for example. Note that the vehicle to which the present invention is applied is not limited to a two-wheeled vehicle as in this embodiment, and the present invention may also be applied to other vehicles having handlebars H (such as an ATV or a snowmobile).

[0056] The present invention can be applied to throttle operating devices with different external shapes or with additional functions, as long as they are in line with the spirit of the present invention.

[0057] REFERENCE SIGNS LIST 1 interlocking member 1a fitted portion 1b first accommodating recess 1c second accommodating recess 1d pressing portion 2 magnetic sensor (rotation angle detection means) 3 first biasing means (torsion coil spring) 3a one end 3b other end 3c coil portion 4 second biasing means (torsion coil spring) 4a one end 4b other end 4c coil portion 5 spring case 5aa to 5ad end positioning portion 5b first positioning portion 5c second positioning portion 5d accommodating recess 5e opening 6 resistance force applying means 7 coil spring 8 cover 9 retaining member C case Ca lower case Caa accommodation portion Cb upper case m magnet h wiring n mounting screw B mounting bolt K circuit board Y unit G throttle grip (operating means) Ga fitting portion

Claims

1. A throttle operating device comprising: an interlocking member that can rotate in conjunction with rotational operation in one direction and rotational operation in the other direction of a vehicle operating means; a magnet attached to said interlocking member and rotatable together with said interlocking member; a rotation angle detection means that can detect the rotation angle of said operating means by detecting magnetic changes in said magnet that rotates together with said interlocking member; a first biasing means that biases said operating means and interlocking member toward their initial positions when said operating means is rotated in one direction; and a second biasing means that biases said operating means and interlocking member toward their initial positions when said operating means is rotated in the other direction, and is capable of controlling a drive source of a vehicle in accordance with the rotation angle of said operating means detected by said rotation angle detection means, a throttle operating device characterized in that the first and second biasing means are composed of torsion coil springs, and when the operating means is rotated in one direction, the biasing force of the first biasing means is applied to the operating means, and when the operating means is rotated in the other direction, the biasing forces of the first and second biasing means are applied to the operating means.

2. The throttle operating device according to claim 1, characterized in that the operating means comprises a throttle grip that can be gripped and rotated by the driver, and that by rotating the throttle grip in one direction, the vehicle's drive source can be controlled, and by rotating the throttle grip in the other direction, a specified device mounted on the vehicle can be activated or the operation of that device can be stopped.

3. A throttle operating device according to claim 1, wherein said first and second biasing means are formed of torsion coil springs having the same set load or different set loads.

4. A throttle operating device as described in claim 1, characterized in that it is provided with a spring case to which the respective ends of the first and second biasing means can be positioned and attached, and the interlocking member is attached to the spring case, and when it rotates in one direction, it generates a biasing force in the first biasing means, and when it rotates in the other direction, it generates a biasing force in the first and second biasing means.

5. A throttle operating device as described in claim 4, characterized in that the interlocking member is formed with a pressing portion that presses against an end of the first biasing means to generate a biasing force in the first biasing means when rotating in one direction, and that presses against the ends of the first biasing means and second biasing means to generate a biasing force in the first biasing means and second biasing means when rotating in the other direction.

6. A throttle operating device according to claim 5, characterized in that the spring case has end positioning portions that position the ends of the first and second urging means, a first positioning portion that positions the coil portion of the first urging means, and a second positioning portion that positions the coil portion of the second urging means.

7. A throttle operating device according to claim 6, wherein said spring case has said first biasing means attached to one surface and said second biasing means attached to the other surface.

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