JP6370109B2 - Throttle grip device - Google Patents

Description

  The present invention relates to a throttle grip device in which a vehicle engine is controlled based on a rotation operation of the throttle grip.

  In recent motorcycles, a configuration in which the rotation angle of the throttle grip is detected by a throttle opening sensor such as a potentiometer and the detected value is transmitted as an electric signal to an electronic control device mounted on the motorcycle is popular. Has been done. The electronic control unit performs a predetermined calculation based on the detection signal, and the ignition timing of the engine and the opening / closing of the intake valve or the throttle valve are controlled based on the calculation result.

  For example, Patent Document 1 discloses a throttle in which a magnet is fixed to a throttle grip, a magnetic sensor including a Hall element is disposed at a position facing the magnet, and the rotation angle of the throttle grip can be detected by the magnetic sensor. A grip device has been proposed. The magnet according to the conventional throttle grip device is formed in an arc shape along the rotation direction of the throttle grip, and a magnetic sensor is disposed opposite to the side surface thereof, and the magnetic flux generated by the rotation operation of the throttle grip. By detecting a change in density with a magnetic sensor, the rotation angle of the throttle grip can be detected electrically.

JP 2006-112880 A

  In the conventional throttle grip device, since the magnet is fixed to a predetermined portion on the base end side of the throttle grip, even if a load in a direction different from the rotation direction is applied to the throttle grip, Since the magnet moves in that direction, it is difficult to accurately detect the rotation angle of the throttle grip. Therefore, the present applicant has come to consider solving the above-mentioned problem by disposing an interlocking member interlocking with the rotation of the throttle grip separately from the throttle grip and fixing the magnet to the interlocking member. .

  However, in this case, it is difficult to position the interlocking member (especially in the radial direction), and it is difficult to accurately interlock the interlocking member with the rotation operation of the throttle grip. It is expected that there will be a malfunction that cannot be performed accurately.

  The present invention has been made in view of such circumstances, and the interlocking member can be more reliably and smoothly interlocked with the rotation operation of the throttle grip, and the rotation angle of the throttle grip can be detected with higher accuracy. An object of the present invention is to provide a throttle grip device that can be used.

According to the first aspect of the present invention, a case attached to a handlebar of a vehicle, a throttle grip that can be rotated from an initial position while being gripped by a driver, a throttle grip that is disposed in the case, and An interlocking member that can rotate in conjunction with the motor, biasing means that biases the interlocking member toward an initial position, a magnet fixed to the interlocking member, and an output voltage corresponding to a change in the magnetic field from the magnet And a rotation angle detection unit capable of detecting a rotation angle of the interlocking member, and controlling a vehicle engine in accordance with the rotation angle detected by the rotation angle detection unit. a contact member capable of guiding the rotation of the outer peripheral surface in contact with at least a radial direction the interlocking member while performing the positioning of the interlocking member, the outer circumferential surface of the interlocking member A friction resistance means that provides frictional resistance when the interlocking member rotates, and the contact member has an outer peripheral surface opposite to a position where the friction resistance means abuts. It is characterized by abutting .

According to a second aspect of the invention, in the throttle grip apparatus according to claim 1, wherein said frictional resistance means includes a friction member which contacts the outer circumferential surface of the interlocking member, the friction member toward the outer circumferential surface of the interlocking member And an urging member to be pressed.

  According to the first aspect of the present invention, since the abutting member capable of guiding the rotation of the interlocking member while at least radially positioning by contacting the outer peripheral surface of the interlocking member is provided, the throttle grip is rotated. In addition, the interlocking member can be interlocked more reliably and smoothly, and the rotation angle of the throttle grip can be detected with higher accuracy.

The friction member is disposed in contact with the outer peripheral surface of the interlocking member and imparts frictional resistance when the interlocking member rotates, and the contact member has a position where the friction resistance member contacts. Is in contact with the outer peripheral surface on the opposite side, so that at least the radial positioning of the interlocking member can be more stably achieved by the frictional resistance means and the contact member, and the frictional resistance means has a function of imparting friction to the interlocking member. And a positioning function.

According to the invention of claim 2 , the frictional resistance means includes the friction member that contacts the outer peripheral surface of the interlocking member, and the biasing member that presses the friction member toward the outer peripheral surface of the interlocking member. The urging force of the urging member can reliably contact the friction member with the interlocking member, and when the interlocking member rotates, the friction member follows the outer peripheral surface of the friction member to reliably maintain the contact state. be able to.

The side view and front view which show the throttle grip apparatus which concerns on embodiment of this invention The front view which shows the state which removed the 1st case in the throttle grip apparatus Sectional view taken along line III-III in FIG. Sectional view along line IV-IV in FIG. Sectional view taken along line VV in FIG. The exploded perspective view for showing the internal structure of the throttle grip device 3 views showing interlocking members in the throttle grip device Two views showing a return spring (biasing means) in the throttle grip device Three-side view showing magnets in the throttle grip device Two views showing a contact member in the throttle grip device Four views showing friction resistance means in the throttle grip device Front view showing a small case in the throttle grip device XIII-XIII line sectional view in FIG. XIV-XIV line sectional view in FIG. Schematic diagram showing the positional relationship between the magnet and the magnetic sensor (rotation angle detection means) when the throttle is fully closed in the throttle grip device. AA line sectional view in FIG. Schematic diagram showing the positional relationship between the magnet and the magnetic sensor (rotation angle detection means) when the throttle is fully opened in the throttle grip device. BB sectional view in FIG. The block diagram which shows the electrical connection of the magnetic sensor and detection means in the throttle grip apparatus The graph which shows the relationship between the rotation angle of the throttle grip in the same throttle grip apparatus, and the separation dimension of a magnetic sensor and a detection means Graph showing the relationship between the rotation angle of the throttle grip and the output voltage of the magnetic sensor in the throttle grip device

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 for detecting the rotation angle of the throttle grip attached to the handlebar of the two-wheeled vehicle and sending the detection signal to an electronic control device such as an ECU mounted on the two-wheeled vehicle. As shown in FIG. 6, the rotation includes a case 1, a throttle grip G, an interlocking member 2, a return spring 3 (biasing means), a magnet 4, a magnetic sensor 6 and a detecting means 11 (see FIG. 19). The angle detection means, the contact member 7 and the friction resistance means 8 are mainly configured.

  As shown in FIG. 1, the case 1 is attached to the front end side (base end side of the throttle grip G) of a handlebar H of a two-wheeled vehicle (vehicle). It is comprised from the 2nd case 1b. The case 1 is assembled with mounting screws while the handle bar H is sandwiched between the first case 1a and the second case 1b, and an interlocking member 2 is rotatably disposed therein. . The case 1 according to the present embodiment is formed with operation knobs and switches for operating various electrical components mounted on the motorcycle.

  The throttle grip G is capable of rotating in a predetermined direction around the axis from the initial position with respect to the handlebar H while being gripped by the driver. The throttle grip G includes a grip grip portion G1 that can be gripped by the driver, The grip pipe portion G2 is fixed and integrated with the grip grip portion G1. The grip pipe part G2 is formed, for example, by molding a hard resin material into a predetermined shape, and a base end part G3 having a larger diameter than other parts is integrally formed at the base end part (left end part in FIG. 3). Is formed.

  As shown in FIG. 6, the base end G <b> 3 is formed with a protruding portion G <b> 3 a (see FIGS. 4 to 7) so that when the throttle grip G is rotated, the protruding portion G <b> 3 a is a predetermined portion of the interlocking member 2 ( It is configured to be able to rotate against the urging force of the return spring 3 by abutting against the wall surface of the fitting portion 2a. That is, the interlocking member 2 is formed with a concave fitting portion 2a. When the throttle grip G is rotated by assembling the fitting portion 2a while fitting the convex portion G3a, the convex portion G3a is formed. The interlocking member 2 can be rotated in the same direction by pressing the wall surface of the fitting portion 2a.

  The interlocking member 2 is rotatably disposed in the case 1 and can rotate against the urging force of the return spring 3 in conjunction with the throttle grip G. As shown in FIG. It consists of the cylindrical member which comprised the fitting part 2a which can fit the convex part G3a of G, and the fixing | fixed part 2b which can fix the magnet 4. FIG. The interlocking member 2 according to the present embodiment is configured such that a return spring 3 (biasing means) is attached to the inner peripheral portion thereof.

  The return spring 3 is attached to the inside of the interlocking member 2 (inside the inner peripheral surface 2d), and biases the interlocking member 2 and the throttle grip G toward the initial position. As shown in FIG. Is attached to the interlocking member 2 (specifically, the mounting hole 2c (see FIGS. 4 and 5) formed in the interlocking member 2) and the other end 3b is attached to the case 1 (specifically, the mounting portion formed in the case 1b). ) Torsion springs (so-called torsion springs).

  That is, the return spring 3 is arranged inside the inner peripheral surface 2d of the interlocking member 2 and is configured to urge the interlocking member 2 toward the initial position. Thus, the throttle grip G can be constantly urged toward the initial position. Accordingly, the return spring 3 is protected by the interlocking member 2 and a separate installation space for the return spring 3 in the case 1 can be eliminated.

  The magnet 4 is made of a permanent magnet fixed to the fixed portion 2b of the interlocking member 2, and is formed in an arc shape in plan view as shown in FIG. That is, the fixing portion 2b formed on the interlocking member 2 is formed of a concave portion formed in an arc shape on the outer peripheral edge side of the end surface of the interlocking member 2 (see FIG. 7), and the magnet 4 has a shape corresponding to the concave portion. The magnet 4 is fixed to the fixing portion 2b with an adhesive or the like.

  The magnetic sensor 6 and the detection means 11 constitute the rotation angle detection means of the present invention. By obtaining an output voltage corresponding to a change in the magnetic field from the magnet 4, the rotation of the interlocking member 2 (ie, the throttle grip G). An angle can be detected. The magnetic sensor 6 can obtain an output voltage corresponding to a magnetic field change (change in magnetic flux density) of the magnet 4. For example, a Hall element (specifically, a magnet 4 using a Hall effect) is used. A linear Hall IC capable of obtaining an output voltage proportional to a magnetic field (magnetic flux density) is used.

  The magnetic sensor 6 according to the present embodiment is formed on the printed circuit board 5 on which a predetermined electric circuit is printed. As shown in FIG. 19, the rotation angle of the interlocking member 2 is determined from the output voltage of the magnetic sensor 6. It is electrically connected to detection means 11 for detection. Thus, when the interlocking member 2 rotates against the biasing force of the return spring 3 as the throttle grip G is rotated, the magnet 4 also rotates by the same angle in the same direction, and the magnetic field changes depending on the rotation angle. Thus, an output voltage corresponding to the rotation angle can be obtained, and the rotation angle of the interlocking member 2 (that is, 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 the ECU 12 (engine control unit) mounted on the two-wheeled vehicle, and the vehicle according to the transmitted rotation angle of the throttle grip G. The engine can be controlled. That is, when the throttle grip G in the initial position is rotated against the urging force of the return spring 3, the throttle opening of the vehicle is controlled to gradually increase and the hand gripping the grip grip portion G1 is loosened. The throttle grip G naturally returns toward the initial position by the urging force of the return spring 3, and the throttle opening is gradually reduced.

  Furthermore, as shown in FIG. 9, the magnet 4 according to the present embodiment has a surface 4a (a surface facing the magnetic sensor 6) inclined and formed in a helical shape (rotating in an arc shape and perpendicular to the rotation surface). In addition, the back surface 4b is a flat surface. The back surface 4b is brought into contact with the fixing portion 2b of the connecting member 2 to fix the magnet 4 to the fixing portion 2b, so that the separation dimension t between the magnetic sensor 6 and the rotation angle of the throttle grip G is increased. Is configured to change. Thereby, as shown in FIG. 21, the relationship between the output voltage of the magnetic sensor 6 and the rotation angle of the throttle grip G is set to be a proportional relationship.

  For example, as shown in FIGS. 15 and 16, the separation dimension t1 between the magnet 4 and the magnetic sensor 6 when the throttle grip G is in the initial state (when the throttle is fully closed) is as shown in FIGS. Further, it is set to be smaller than the separation dimension t2 between the magnet 4 and the magnetic sensor 6 at the maximum rotation angle of the throttle grip G (when the throttle is fully opened). Thus, the surface 4a of the magnet 4 according to the present embodiment is such that the separation dimension t between the magnet sensor 6 and the magnetic sensor 6 changes according to the rotation angle of the throttle grip G as shown in FIG. As shown in FIG. 21, the relationship between the output voltage of the magnetic sensor 6 and the rotation angle of the throttle grip G is set to have a proportional shape.

  Furthermore, the magnetic sensor 6 and the printed circuit board 5 are accommodated in the small case C, as shown in FIGS. 12 to 14, and the small case C is adjacent to the interlocking member 2 in the case 1 (see FIG. 3). The magnetic sensor 6 is configured to face the magnet 4 by being fixed to the magnet 4. With this small case C, for example, when the interlocking member 2 tries to move in the axial direction (left direction in FIG. 3), the movement can be prevented by interfering with the end face of the interlocking member 2. It is preferable to seal the resin by pouring resin or the like into the small case C in a state where the magnetic sensor 6 and the printed circuit board 5 are accommodated.

  The abutting member 7 is a plate-like member fixed to the case 1 (second case 1b) so as to cover the interlocking member 2, and abuts on the outer peripheral surface of the interlocking member 2 to perform at least radial positioning. However, the rotation of the interlocking member 2 can be guided. Specifically, as shown in FIG. 10, the contact member 7 is composed of a plate-like member that is bent in an arc from one end 7 a to the other end 7 b, and the bent portion follows the outer peripheral surface of the interlocking member 2. The shape is different. Then, by inserting the one end 7a into the mounting hole 1bb of the second case 1b and fixing the other end 7b to a predetermined portion of the second case 1b with a screw or the like, the bent portion between the one end 7a and the other end 7b is interlocked. Abutting on the outer circumferential surface of the member 2, the interlocking member 2 is positioned in the radial direction and guided for rotation. In addition, the code | symbol 7ba in the figure has shown the screw hole which penetrates a screw | thread etc. FIG.

  The frictional resistance means 8 is disposed in contact with the outer peripheral surface of the interlocking member 2 and provides frictional resistance when the interlocking member 2 rotates. As shown in FIGS. 2, and a biasing member 10 that presses the friction member 9 toward the outer peripheral surface of the interlocking member 2. The friction member 9 is made of a desired friction material. As shown in FIG. 11, the friction member 9 includes an arcuate protruding end surface 9 a that follows the outer peripheral surface of the interlocking member 2 and a receiving portion 9 b for receiving the biasing member 10. It consists of a piece-shaped member. Further, as shown in FIG. 5, the urging member 10 is composed of a spring accommodated in the accommodating portion 1ba of the second case 1b, and may be another urging member instead of the spring.

  Here, the contact member 7 according to the present embodiment is configured to contact the outer peripheral surface of the interlocking member 2 on the side opposite to the position where the frictional resistance means 8 contacts. Accordingly, the friction member 9 biased by the biasing force of the biasing member 10 presses the interlocking member 2, and the contact member 7 receives the pressed interlocking member 2, so that the radial positioning and rotation are performed. Guidance will be given. Therefore, the frictional resistance means 8 gives a frictional resistance to the interlocking member 2 that accompanies the rotation of the throttle grip G, thereby obtaining an operational feeling during the rotational operation of the throttle grip G and interlocking by the contact member 7. The positioning of the member 2 in the radial direction and the guidance for rotation can be surely performed.

  According to the above embodiment, the contact member 7 that can guide the rotation of the interlocking member 2 while at least radially positioning by contacting the outer peripheral surface of the interlocking member 2 is provided. An operational feeling during operation can be obtained, and the interlocking member 2 can be interlocked more reliably and smoothly, and the rotation angle of the throttle grip can be detected with higher accuracy. In particular, since the contact member 7 according to the present embodiment is attached so as to cover the interlocking member 2, it is configured to cover and protect the interlocking member 2 (including the internal return spring 3).

  However, in this embodiment, the abutting member 7 and the frictional resistance means 8 perform the radial positioning of the interlocking member 2, but in addition to the radial positioning and rotation guidance only by the abutting member 7, It is good also as what gives friction resistance. Further, for example, a concave groove or a ridge extending in the circumferential direction is formed on the outer peripheral surface of the interlocking member 2, and the concave groove or the convex strip is formed on the contact surface of the contact member 7 or the friction member 9 with respect to the outer peripheral surface of the interlocking member 2. In addition to the radial direction of the interlocking member 2, it may be configured to be positioned in the axial direction by providing a convex portion or a concave portion that can be fitted.

  The friction member 8 is disposed in contact with the outer peripheral surface of the interlocking member 2 and applies frictional resistance when the interlocking member 2 rotates. The contact member 7 includes the friction resistance member 8. Since it abuts on the outer peripheral surface opposite to the abutting position, the frictional resistance means 8 and the abutting member 7 can achieve the positioning of the interlocking member 2 at least in the radial direction more stably, and the frictional resistance means 8 can have both the function of imparting friction to the interlocking member 2 and the function of positioning.

  Furthermore, the frictional resistance means 8 according to the present embodiment includes a friction member 9 that contacts the outer peripheral surface of the interlocking member 2 and a biasing member 10 that presses the friction member 9 toward the outer peripheral surface of the interlocking member 2. Therefore, the biasing force of the biasing member 10 can surely cause the friction member 9 to contact the interlocking member 2, and when the interlocking member 2 rotates, the friction member 9 follows the outer peripheral surface thereof. Thus, the contact state can be reliably maintained.

  In addition, according to this embodiment, since the return spring 3 (biasing means) is attached to the inside of the interlocking member 2, the rotation angle of the throttle grip G can be detected with high accuracy, and the return spring is Compared with the one attached to a position separate from the interlocking member 2, the dimensions of the case 1 (particularly the width dimension in the left-right direction in FIGS. 2 and 3) can be reduced, and an increase in the size of the throttle grip device can be suppressed.

  Further, the return spring 3 (biasing means) according to the present embodiment is composed of a torsion spring having one end 3a attached to the interlocking member 2 and the other end 3b attached to the case 1, so that the interlocking member is more reliably and smoothly made. 2 can be biased toward the initial position. Furthermore, the interlocking member 2 according to the present embodiment includes a fitting portion 2a capable of fitting a convex portion G3a formed on the base end side of the throttle grip G, and a fixing portion 2b capable of fixing the magnet 4. Since it is made of a cylindrical member and the return spring 3 as an urging means is attached to the inner peripheral portion thereof, the interlocking according to the rotation operation of the throttle grip G and the holding of the magnet 4 can be performed reliably. The enlargement of the apparatus can be suppressed.

  Furthermore, the fixing portion 2b according to the present embodiment is formed of a concave portion formed in an arc shape on the outer peripheral side of the end surface (the surface facing the magnetic sensor 6) in the interlocking member 2, and the magnet 4 has a shape corresponding to the concave portion. As a result, the dimensions of the inner peripheral portion of the interlocking member 2 can be increased without substantially changing the outer dimensions, and a relatively large return spring 3 (biasing means) can be attached. Further, in the present embodiment, the friction member 8 is provided in contact with the outer peripheral surface of the interlocking member 2 and imparts frictional resistance when the interlocking member 2 rotates. Friction resistance can be applied by the friction resistance means 8 while avoiding interference with the return spring 3 (biasing means) attached to the peripheral portion.

  In addition, according to the throttle grip device according to the present embodiment, by having the magnet 4 fixed to the interlocking member 2 and the magnetic sensor 6 that can obtain an output voltage corresponding to the magnetic field change of the magnet 4, Since the rotation operation angle of the throttle grip G can be detected, a wire or the like that operates according to the rotation angle of the throttle grip G can be eliminated, and the rotation angle at the time of rotation of the throttle grip G can be detected more accurately. be able to.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, the return spring 3 as the biasing means may be replaced with another general-purpose biasing means different from the torsion spring. Alternatively, it may be provided at a separate position outside the interlocking member 2. Further, the contact member 7 and the frictional resistance means 8 may have other forms, or the frictional resistance means 8 may not be provided in the case 1. The applied vehicle is not limited to a two-wheeled vehicle as in this embodiment, and may be applied to other vehicles having a handlebar H (for example, ATV, snowmobile, etc.).

A contact member that can contact the outer peripheral surface of the interlocking member to guide the rotation of the interlocking member while positioning at least in the radial direction, and is disposed in contact with the outer peripheral surface of the interlocking member. A friction resistance means for providing friction resistance when the member rotates, and the abutment member is an external appearance as long as it is a throttle grip device that abuts on the outer peripheral surface opposite to the position where the friction resistance means abuts. The present invention can also be applied to ones with different shapes or other functions added.

1 Case 2 Interlocking member 3 Return spring (biasing means)
4 Magnet 5 Printed circuit board 6 Magnetic sensor (rotation angle detection means)
7 Contact member 8 Friction resistance means 9 Friction member 10 Biasing member 11 Detection means (rotation angle detection means)
12 ECU
H Handlebar G Throttle grip C Small case

Claims (2)

A case attached to the handlebar of the vehicle;
A throttle grip that can be rotated from an initial position while being held by a driver;
An interlocking member disposed in the case and capable of rotating in conjunction with the throttle grip;
Biasing means for biasing the interlocking member toward the initial position;
A magnet fixed to the interlocking member;
A rotation angle detecting means capable of detecting a rotation angle of the interlocking member by obtaining an output voltage corresponding to a change in the magnetic field from the magnet;
A throttle grip device for controlling the engine of the vehicle according to the rotation angle detected by the rotation angle detection means,
An abutting member capable of guiding the rotation of the interlocking member while making contact with the outer peripheral surface of the interlocking member and positioning at least in the radial direction ;
Friction resistance means disposed in contact with the outer peripheral surface of the interlocking member and imparting frictional resistance during rotation of the interlocking member;
And the abutting member abuts on the outer peripheral surface opposite to the position where the frictional resistance means abuts . It said frictional resistance means includes a friction member which contacts the outer circumferential surface of the interlocking member, according to claim 1, wherein said friction member characterized by having a biasing member for pressing against the outer circumferential surface of the interlocking member Throttle grip device.

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