JP7336108B2 - throttle grip device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a throttle grip device for controlling an engine of a vehicle based on rotating operation of a throttle grip.

In recent motorcycles, a throttle grip device configured to detect the rotation angle of the throttle grip with a throttle opening sensor such as a potentiometer and send the detected value as an electric signal to an electronic control device or the like mounted on the motorcycle. has become popular. Based on the detection signal, the electronic control unit performs a predetermined calculation, and based on the result of the calculation, the ignition timing of the engine and the opening and closing of the intake valve or throttle valve are controlled.

As a conventional throttle grip device, for example, one disclosed in Patent Document 1 can be cited. In such a conventional throttle grip device, a magnet is attached to an interlocking member that interlocks with the throttle grip, and a magnetic sensor detects a change in magnetism of the magnet to detect the rotation angles of the interlocking member and the throttle grip, thereby controlling the engine. was supposed to take place.

Further, the conventional throttle grip device has a return spring consisting of a torsion coil spring that urges the throttle grip and the interlocking member in the rotational direction toward the initial position. is applied to the interlocking member. As a result, after rotating the throttle grip, the throttle grip is returned to its initial position by the urging force of the return spring when the driver loosens the gripping force.

JP 2015-81564 A

However, in the above-described prior art, positioning of the interlocking member, particularly radial positioning, may be difficult due to the structure of the case or the layout of the components. There is a possibility that the detection accuracy of the rotation angle of the throttle grip by the rotation angle detection means will be degraded. In addition, due to the layout of the components, it may be difficult to lock the other end of the return spring, one end of which is locked by the interlocking member, at an appropriate position. There was a fear that it would not be possible.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and provides a throttle grip device capable of stably rotating an interlocking member and locking a return spring at an appropriate position. to provide.

The invention according to claim 1 comprises: an interlocking member that can rotate together with a rotation operation of a throttle grip of a vehicle; rotation angle detection means that can detect the rotation angle of the throttle grip by detecting the rotation angle of the interlocking member; a return spring, one end of which is engaged with the interlocking member and which is a torsion coil spring that biases the throttle grip and the interlocking member in a rotational direction toward an initial position when the throttle grip is rotated; A throttle grip device capable of controlling an engine of a vehicle according to a rotation angle of the throttle grip detected by rotation angle detection means, wherein the interlocking member is positioned and rotatably held, and the return spring is provided. The holding member is formed to protrude in an annular shape and has a guiding portion for rotatably fitting and positioning the interlocking member; A locking portion that locks the other end of the spring abuts against the interlocking member urged in the rotational direction by the return spring, thereby holding the interlocking member by receiving the urging force in the rotational direction of the return spring. a holding portion, wherein the interlocking member and the return spring are integrally constructed by the holding member to form a unit, and a case is provided which is fixed to a handlebar pipe of a vehicle, and the case is integrally constructed by the holding member. The unit is mounted in the case, a magnet is mounted on the interlocking member, and the rotation angle detection means is mounted on the case at a position capable of detecting a magnetic change of the magnet. The rotation angle of the interlocking member is detected based on the above .

The invention according to claim 2 is characterized in that, in the throttle grip device according to claim 1 , the holding member comprises a plate-like member.

The invention according to claim 3 is characterized in that, in the throttle grip device according to claim 1 or claim 2 , the return spring biases the interlocking member in the axial direction in addition to the rotational direction.

The invention according to claim 4 is characterized in that, in the throttle grip device according to any one of claims 1 to 3 , the interlocking member is separate from the throttle grip.

The invention according to claim 5 is the throttle grip device according to any one of claims 1 to 3 , wherein the interlocking member is integrated with the throttle grip.

According to the first aspect of the invention, the interlocking member is positioned and rotatably held, and the holding member engages and holds the other end of the return spring. Therefore, the interlocking member can be stably rotated. In addition, the return spring can be locked at an appropriate position.

In addition , since the holding member has a guide portion that protrudes in an annular shape, and the interlocking member is rotatably fitted into the guide portion for positioning, the interlocking member can be positioned, particularly in the radial direction, with a simple structure. Positioning can be reliably performed.

Further , the holding member has a guide portion, a locking portion that locks the other end of the return spring, and a holding portion that contacts and holds the interlocking member biased in the rotational direction by the return spring. Therefore, the positioning of the interlocking member in the radial direction by the guide portion, the locking of the return spring by the locking portion, and the holding of the holding member with respect to the interlocking member by the holding portion can all be performed.

According to the invention of claim 2 , since the holding member is made of a plate-like member, it is possible to reduce the thickness of the throttle grip device.

According to the third aspect of the invention, the return spring urges the interlocking member in the axial direction as well as in the rotational direction, so that the interlocking member can be elastically pressed in the axial direction to absorb backlash. Thus, the interlocking member can be stably rotated, and the operability of the throttle grip can be maintained.

According to the invention of claim 4 , since the interlocking member is separate from the throttle grip, it is possible to suppress transmission of an excessive load applied to the throttle grip to the interlocking member. Replacement of the member or throttle grip can be facilitated.

According to the invention of claim 5 , since the interlocking member is integrated with the throttle grip, it is possible to reduce the number of parts compared to a case in which the interlocking member is separate from the throttle grip, and the throttle grip device. assembly workability can be improved.

1 is a front view and a side view showing the appearance of a throttle grip device according to an embodiment of the present invention; FIG. II-II line sectional view in FIG. III-III line sectional view in FIG. A perspective view showing a case of the same throttle grip device. A three-sided view showing an interlocking member of the same throttle grip device. The perspective view which shows the same interlocking member A three-sided view showing a state in which a return spring is attached to the same interlocking member. A perspective view showing a state in which a return spring is attached to the interlocking member. A perspective view showing a return spring of the same throttle grip device. A three-sided view showing a holding member of the same throttle grip device. A plan view and a side view showing an interlocking member and a return spring integrally configured by the same holding member. A perspective view showing an interlocking member and a return spring integrally configured by the same holding member. A perspective view showing an interlocking member and a return spring integrally configured by the same holding member. Sectional view showing a throttle grip device to which a holding member of another form and integrated with a throttle grip is applied A perspective view showing a holding member of the same form and integrated with a throttle grip.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
As shown in FIG. 1, the throttle grip device according to the present embodiment detects the rotation angle of a throttle grip G attached to a handle pipe of a motorcycle, and transmits the detection signal to an electronic control device such as an ECU mounted on the motorcycle. 1 to 10, it comprises an interlocking member 1, a magnetic sensor 2 (rotational angle detecting means), a return spring 3, a holding member 4, and a case C. ing.

The interlocking member 1 can be rotated together with the rotation operation of the throttle grip G of the vehicle, and as shown in FIGS. ), a housing recess 1b for housing the return spring 3, a locking portion 1c for locking one end 3a of the return spring 3, and a projection protruding at a predetermined position. A stopper portion 1d is formed.

Further, the interlocking member 1 according to the present embodiment has an arcuate magnet m attached to one end surface thereof. The magnet m is constructed so that the magnetic field changes continuously in the circumferential direction, and can rotate as the interlocking member 1 rotates. Such a magnet m may have a helical surface whose height continuously changes while being bent in an arc shape. It is necessary to arrange the magnetic sensor 2 (rotation angle detection means).

Further, the housing recess 1b is formed in an annular groove shape on one end face of the interlocking member 1, and a locking portion 1c is formed in a part thereof. When the return spring 3 is accommodated in the accommodation recess 1b, as shown in FIGS. 7 and 8, the coil portion 3c is fitted into the accommodation recess 1b, and the one end 3a is fitted and locked into the locking portion 1c. It's like As a result, the return spring 3 is included in the interlocking member 1, and the width dimension can be reduced.

The case C is fixed to the tip end side (base end side of the throttle grip G) of the handlebar pipe H (see FIG. 3) of the motorcycle (vehicle), and as shown in FIGS. The case Cb is assembled with bolts B (see FIG. 3). As shown in FIG. 4, each of the lower case Ca and the upper case Cb is formed with an accommodation recess N, and an accommodation space is formed inside when the lower case Ca and the upper case Cb are assembled. It has become.

As shown in FIGS. 2 and 3, the lower case Ca has a sliding surface N on which one end surface of the interlocking member 1 can contact and slide, and is located at a position where the magnetic change of the magnet m can be detected. It is configured so that the magnetic sensor 2 can be attached. In addition, as shown in FIG. 4, a screw hole n is formed in the wall surface of the lower case Ca so that the holding member 4 can be screwed to a predetermined position in the lower case Ca.

2 and 3, the magnetic sensor 2 (rotational angle detection means) consists of a sensor arranged at a predetermined position of the lower case Ca, and detects a change in the magnetism generated by the magnet m to detect the interlocking member. 1 rotation angle is detected, and the rotation angle of the throttle grip G can be detected. Specifically, the magnetic sensor 2 can obtain an output voltage corresponding to a change in the magnetic field of the magnet m (change in magnetic flux density). is composed of a linear Hall IC) or the like capable of obtaining an output voltage proportional to the magnetic field (magnetic flux density) of the magnet m. Thus, when the throttle grip G is rotated and the interlocking member 1 rotates, the magnet m rotates, resulting in a change in magnetism.

As a result, since the magnetism changes depending on the rotation angle of the interlocking member 1, an output voltage corresponding to the rotation angle can be obtained. ) can be detected. The rotation angle of the throttle grip G thus detected is transmitted as an electric signal to an ECU (engine control unit) mounted on the motorcycle, and the vehicle is controlled according to the transmitted rotation angle of the throttle grip G. The engine can be controlled. Note that reference symbol h in the drawing indicates a wiring extending from the magnetic sensor 2, and the detection signal is transmitted to the vehicle via the wiring h.

The return spring 3 is a coil spring that biases the throttle grip G and the interlocking member 1 toward the initial position in the rotational direction α when the throttle grip G is rotated. One end 3a engaged with the stop portion 1c, the other end 3b engaged with the engaging portion 4a of the holding member 4, and the coil portion 3c positioned between the one end 3a and the other end 3b. ing.

Thus, the return spring 3 is assembled with one end 3a attached to the interlocking member 1 and the other end 3b attached to the holding member 4. When the throttle grip G is rotated, the return spring 3 is Since the interlocking member 2 rotates against the urging force, the urging force is transmitted to the throttle grip G, and a force acts to return the throttle grip G and the interlocking member 1 to their initial positions.

The holding member 4 positions and rotatably holds the interlocking member 1 and locks and holds the other end 3b of the return spring 3. As shown in FIG. , a guide portion 4b for positioning and holding the interlocking member 1, and a holding portion 4c formed at a predetermined position. A screw hole n is formed at a predetermined position of the holding member 4 so that the holding member 4 can be screwed to a predetermined position in the lower case Ca.

The locking portion 4a is formed by bending a portion of the holding member 4, and is configured to securely lock the other end 3b of the return spring 3. As shown in FIG. The guide portion 4b is formed by projecting a part of the holding member 4 in an annular shape by burring or the like, and as shown in FIG. ), the interlocking member 1 can be rotatably fitted and positioned (in particular, radially positioned).

The holding portion 4c is held in contact with the stopper portion 1d of the interlocking member 1 biased in the rotational direction by the return spring 3. As shown in FIG. That is, as shown in FIGS. 7 and 8, in a state in which the return spring 3 is accommodated in the accommodation recess 1b, the other end 3b of the return spring 3 is engaged with the engaging portion 4a of the holding member 4, and then the return spring 3 is released. The holding member 4 and the interlocking member 1 are relatively rotated by a certain angle in the direction in which the coil portion 3c is twisted to generate a predetermined biasing force, and the holding portion 4c of the holding member 4 is brought into contact with the stopper portion 1d of the interlocking member 1. In this contact state, the holding portion 4c of the holding member 4 receives the biasing force of the return spring 3 in the rotational direction α, so that the holding member 4 holds the interlocking member 1 biased in the rotational direction α by the return spring 3. can do.

As a result, the holding member 4 locks the other end 3b of the return spring 3 accommodated in the accommodation recess 1b and holds the interlocking member 1 with a predetermined biasing force in the rotational direction α. 13, the interlocking member 1 and the return spring 3 are integrated. Thus, the interlocking member 1 and the return spring 3 integrally formed by the holding member 4 form a unit Y, which is mounted inside the case 1 as shown in FIG.

Furthermore, the return spring 3 according to the present embodiment biases the interlocking member 1 in the axial direction β in addition to the rotational direction α. Specifically, the return spring 3 according to the present embodiment, as shown in FIG. 11 to 13), when housed in the case C as shown in FIG. As a result, the interlocking member 1 is biased in the axial direction β. As a result, the interlocking member 1 is assembled with one end surface pressed against the sliding surface N of the case C by the biasing force of the return spring 3 in the axial direction β.

When the throttle grip G is rotated, the interlocking member 1 rotates against the biasing force of the return spring 3 in the rotational direction α, and one end surface of the interlocking member 1 presses against the sliding surface N of the case C. It slides in the state where it is held. On the other hand, when the throttle grip G is rotated from the initial position toward the opposite side, the stopper portion 1d of the interlocking member 1 is in contact with the holding portion 4c of the holding member 4, so that the throttle grip G is rotated from the initial position. Rotational operation toward the opposite side can be prevented.

According to this embodiment, the interlocking member 1 is positioned and rotatably held, and the holding member 4 holds the other end 3b of the return spring 3 while locking it. In addition, the return spring 3 can be locked at an appropriate position. In addition, the holding member 4 according to the present embodiment has a guide portion 4b protruding in an annular shape, and the interlocking member 1 is rotatably fitted and positioned in the guide portion 4b. Positioning of the interlocking member 1, particularly radial positioning, can be reliably performed.

Further, the holding member 4 according to the present embodiment includes a guide portion, a locking portion 4a that locks the other end 3b of the return spring 3, and the interlocking member 1 biased in the rotational direction α by the return spring 3. Since it has the holding portion 4c that is held in contact with the interlocking member 1, the guide portion 4b positions the interlocking member 1 in the radial direction, the locking portion 4a locks the return spring 3, and the holding portion 4c holds the interlocking member 1 against the interlocking member 1. 4 can be performed together. In particular, since the holding member 4 according to the present embodiment is made of a plate-like member, it is possible to reduce the thickness of the throttle grip device.

Furthermore, the return spring 3 according to the present embodiment urges the interlocking member 1 in the axial direction β in addition to the rotational direction α. The backlash can be absorbed, the interlocking member 1 can be stably rotated, and the operability of the throttle grip G can be maintained. In addition, since the interlocking member 1 according to the present embodiment is separate from the throttle grip G, it is possible to prevent an excessive load applied to the throttle grip G from being transmitted to the interlocking member. Replacement of the interlocking member 1 or the throttle grip G can be facilitated.

In addition, according to the present embodiment, the interlocking member 1 has the accommodation recess 1b that accommodates the return spring 3, and interlocks with the other end 3b of the return spring 3 that is accommodated in the accommodation recess 1b. Since the holding member 4 is attached to the member 1 and integrally comprises the interlocking member 1 and the return spring 3, the interlocking member 1 and the return spring 3 can be integrated to improve the assembling workability. The width required for assembling the member 1 and the return spring 3 can be reduced.

Further, the holding member 4 according to the present embodiment is held in contact with the locking portion 4a that locks the other end 3b of the return spring 3 and the interlocking member 1 that is biased in the rotational direction α by the return spring 3. Since the holding portion 4c is provided, the urging force of the return spring 3 can be reliably applied to the interlocking member 1, and the integrated structure of the interlocking member 1 and the return spring 3 can be reliably held. Furthermore, since the holding member 4 according to the present embodiment is attached to the interlocking member 1 in a state of closing the accommodation recess 1b, it is possible to prevent foreign objects from entering the accommodation recess 1b. 1 can be reliably applied.

Although the present embodiment has been described above, the present invention is not limited to this. For example, as shown in FIGS. It may be integrated with the material Gb). Such an interlocking member 1 is held by a holding member 4 and integrated with the return spring 3 as in the above-described embodiment. In this case, the number of parts can be reduced and the assembling workability of the throttle grip device can be improved as compared with the case where the interlocking member 1 is separate from the throttle grip G.

Furthermore, instead of the magnetic sensor 2 for detecting the rotation angle of the throttle grip G, other general-purpose sensors (not limited to those that detect the magnetism of a magnet, and not limited to non-contact sensors, contact sensors, etc.) also included). Further, instead of the magnet m, the interlocking member 1 may be magnetized in the circumferential direction. The applicable vehicle is not limited to a two-wheeled vehicle as in the present embodiment, but may be applied to other vehicles having a handlebar H (for example, an ATV, a snowmobile, etc.).

If the throttle grip device is provided with a holding member that positions and rotatably holds the interlocking member and that holds the other end of the return spring while locking it, the external shape is different or other functions are added. It can also be applied to things.

1 Interlocking member 1a Fitted portion 1b Receiving recess 1c Locking portion 1d Stopper portion 1e Annular wall portion 2 Magnetic sensor (rotation angle detection means)
3 Return spring 3a One end 3b Other end 3c Coil portion 4 Holding member 4a Locking portion 4b Guide portion 4c Holding portion C Case Ca Lower case Cb Upper case m Magnet h Wiring N Sliding surface

Claims (5)

an interlocking member that can rotate together with the rotation operation of the throttle grip of the vehicle;
rotation angle detection means capable of detecting the rotation angle of the throttle grip by detecting the rotation angle of the interlocking member;
a return spring comprising a torsion coil spring, one end of which is engaged with the interlocking member, and which urges the throttle grip and the interlocking member in a rotational direction toward an initial position when the throttle grip is rotated;
A throttle grip device capable of controlling a vehicle engine according to the rotation angle of the throttle grip detected by the rotation angle detection means,
A holding member that positions and rotatably holds the interlocking member and that holds and locks the other end of the return spring,
The holding member is
a guide portion protruding in an annular shape and adapted to rotatably fit and position the interlocking member;
a locking portion that locks the other end of the return spring;
a holding portion that receives the biasing force of the return spring in the rotational direction by coming into contact with the interlocking member urged in the rotational direction by the return spring and holds the interlocking member;
and the interlocking member and the return spring are integrally constructed by the holding member to form a unit. A magnet is attached to the interlocking member, and the rotation angle detection means is attached to the case at a position capable of detecting a magnetic change of the magnet. A throttle grip device characterized by detecting a rotation angle of an interlocking member . 2. A throttle grip device according to claim 1 , wherein said holding member comprises a plate-like member. 3. The throttle grip device according to claim 1, wherein the return spring biases the interlocking member in the axial direction in addition to the rotational direction. The throttle grip device according to any one of claims 1 to 3 , wherein the interlocking member is separate from the throttle grip. The throttle grip device according to any one of claims 1 to 3 , wherein the interlocking member is integrated with the throttle grip.

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