JP2019190404A - Throttle grip device - Google Patents

Abstract

To provide a throttle grip device capable of reducing a dimension in a thickness direction of a case housing an interlock member and a return spring.SOLUTION: In a throttle grip device including an interlock member 2 capable of rotating in interlock with a throttle grip G, a magnetic sensor 7 capable of detecting a rotation angle of the throttle grip G, a return spring 4 composed of a torsion coil spring, and a case 1, and capable of controlling an engine of a vehicle in response to a rotation angle of the throttle grip G detected by the magnetic sensor 7, the interlock member 2 is provided with a housing groove 2b for housing the return spring 4, the return spring 4 is kept in an offset state within a dimension α in a rotating axis direction of the interlock member 2 while being housed in the housing groove 2b, and the housing groove 2b is formed at an outer diameter side with respect to an engaged portion 2a in the interlock member 2.SELECTED DRAWING: Figure 7

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, the throttle grip device is 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 mounted on the motorcycle. Has become popular. 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.

  An example of a conventional throttle grip device is disclosed in Patent Document 1. Such a conventional throttle grip device connects the separate throttle grip and the interlocking member by engaging the engaging portion formed on the throttle grip with the engaged portion formed on the interlocking member, and interlocks. The engine control is performed by detecting the rotation angle of the throttle grip by detecting the rotation angle of the member.

JP, 2015-81564, A

  However, the prior art includes a return spring composed of a torsion coil spring that urges the throttle grip and the interlocking member toward the initial position when the throttle grip is rotated, and accommodates the return spring and the interlocking member. There has been a problem that the thickness dimension of the case is relatively large. That is, in the conventional throttle grip device, since the interlocking member and the torsion coil spring constituting the return spring are disposed at separate positions, the dimension of the torsion coil spring in the same direction in addition to the dimension of the interlocking member in the rotation axis direction is It becomes necessary, and the dimension in the thickness direction of the case becomes large.

  In addition, the biasing force generated by the torsion coil spring constituting the return spring has a circumstance that it is desired to set it finely according to the type of vehicle and the driver's preference. There is a growing need to improve as much as possible. Thus, the present applicant has earnestly studied a throttle grip that improves the degree of freedom in setting the urging force by a return spring (torsion coil spring) in addition to reducing the size of the case in the thickness direction.

  This invention is made in view of such a situation, and while reducing the dimension of the thickness direction of the case which accommodated the interlocking member and the return spring, it improves the freedom degree of the setting of the urging | biasing force by a return spring. An object of the present invention is to provide a throttle grip device that can perform the above-described operation.

  According to the first aspect of the present invention, there is provided a throttle grip which is attached to a front end of a handlebar of a vehicle and can be rotated by a driver, and an engaged state which can be engaged with an engaging portion formed on the throttle grip. An interlocking member that can rotate in conjunction with the throttle grip, a rotation angle detecting means that can detect the rotation angle of the throttle grip by detecting the rotation angle of the interlocking member, and the throttle grip A return spring composed of a torsion coil spring that urges the throttle grip and the interlocking member toward an initial position when rotating, and a case that holds the interlocking member rotatably and is attached to the return spring; According to the rotation angle of the throttle grip detected by the rotation angle detection means. The throttle grip device is capable of controlling the engine of the vehicle, wherein the interlocking member is formed with a housing groove for housing the return spring, and the return spring is housed in the housing groove while being interlocked with the interlocking member. The member is offset within the dimension in the rotation axis direction of the member, and the receiving groove is formed on the outer diameter side of the engaged portion in the interlocking member.

  According to a second aspect of the present invention, in the throttle grip device according to the first aspect of the present invention, the throttle grip device further includes a rotating member that rotates as the interlocking member rotates, and the rotation angle detecting means detects a rotation angle of the rotating member. Thus, the rotation angle of the throttle grip can be detected.

  According to a third aspect of the present invention, in the throttle grip device according to the first or second aspect, the interlocking member is formed to be continuous with the receiving groove, and includes a locking portion to which one end of the return spring is locked. In addition, the engaging portion is formed on the inner diameter side of the housing groove in the interlocking member.

  According to a fourth aspect of the present invention, in the throttle grip device according to any one of the first to third aspects, the interlocking member has the engaged portion formed on one surface and the accommodating groove. It consists of the annular member formed in the other surface, It is characterized by the above-mentioned.

  According to the first aspect of the present invention, the interlocking member is formed with a housing groove for housing the return spring, and the return spring is housed in the housing groove and offset within the dimension of the interlocking member in the rotation axis direction. Since the housing groove is formed on the outer diameter side of the engaged portion of the interlocking member, the dimension of the case in which the interlocking member and the return spring are accommodated is reduced, and the housing is attached by the return spring. The degree of freedom in setting power can be improved.

  According to the second aspect of the present invention, the rotating member that rotates with the rotation of the interlocking member is provided, and the rotation angle detecting means detects the rotation angle of the throttle grip by detecting the rotation angle of the rotating member. Therefore, the interlocking member can have both a holding function for stably holding the return spring in the accommodation groove and a transmission function for transmitting the rotational force of the throttle grip to the rotating member.

  According to the invention of claim 3, the interlocking member is formed continuously with the accommodation groove, and has a latching portion to which one end of the return spring is latched. Since the urging force of the return spring accommodated in the accommodating groove can be applied to the interlocking member and the throttle grip efficiently and stably, the engaged portion is more than the accommodating groove in the interlocking member. One end of the return spring can be locked by utilizing the space on the side (inner diameter side).

  According to the fourth aspect of the present invention, the interlocking member is formed of an annular member having the engaged portion formed on one surface and the receiving groove formed on the other surface. The return spring can be housed in the housing groove and securely held while the transmission is reliably performed.

1 is a side view showing a throttle grip, a cover member, and a handle bar of a vehicle to which a throttle grip device according to an embodiment of the present invention is applied. Front view showing a cover member of the throttle grip device Rear view showing the cover member of the throttle grip device The perspective view which shows the front side of the case in the throttle grip apparatus Perspective view showing the back side of the case Front view showing the internal structure of the case VII-VII line sectional view in FIG. VIII-VIII sectional view taken on the line in FIG. Side view and rear view showing throttle grip in the throttle grip device Front view and side view showing a case in the throttle grip device 3 views showing interlocking members in the throttle grip device XII-XII sectional view in FIG. XIII-XIII line sectional view in FIG. Three views showing the friction plate in the throttle grip device Three views showing the return spring in the throttle grip device The perspective view which shows the state which attached the rotation member, the return spring, and the coil spring to the case of the throttle grip apparatus The perspective view which shows the state which attached the rotating member and the friction board to the case of the throttle grip apparatus The bottom view which shows the accommodation recessed part in the case of the throttle grip apparatus The schematic diagram which shows the positional relationship of the 1st space of the accommodation recessed part in the case of the throttle grip apparatus, the 2nd space, and the 3rd space.

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 the throttle grip G attached to the handlebar H of the two-wheeled vehicle, and sends the detection signal to an electronic control device such as an ECU mounted on the two-wheeled vehicle. As shown in FIGS. 1 to 9, the throttle grip G, the case 1, the interlocking member 2, the friction plate 3 (resistance force applying means), the return spring 4, and the rotating member 6 are used. The magnetic sensor 7 (rotation angle detecting means) and the printed circuit board 8 are included.

  The case 1 is disposed in a cover member C (see FIGS. 1 to 3) attached to the front end side (the base end side of the throttle grip G) of the handle bar H of the motorcycle (vehicle). While accommodating the various components which comprise an apparatus, the interlocking member 2, the rotation member 6, etc. are rotatably hold | maintained. As shown in FIG. 10, the case 1 includes a molded part in which a first recess A that rotatably accommodates the interlocking member 2 and a second recess B that rotatably accommodates the rotating member 6 are formed. Reference numeral 5 denotes a lid member for closing the opening side of the case 1.

  2 and 3, the cover member C is configured by matching and assembling the upper half-cracked member C1 and the lower half-cracked member C2, and constitutes the throttle grip device therein. Various parts can be accommodated, and a cutout C2a (see FIG. 3) is formed in the lower half-cracked member C2. The notch C2a is fitted and assembled with a fixing portion ha and a protruding portion hb (see FIG. 5) integrally formed with the case 1.

  The throttle grip G extends from the cover member C and is attached to the front end of the handlebar H of the vehicle so that the driver can rotate it while holding it. On the base end side of the throttle grip G, an engaging portion Ga (see FIG. 9) formed of a concave portion is formed, and this engaging portion Ga is an engaged portion 2a (see FIGS. 6), the throttle grip G and the interlocking member 2 are connected to each other.

  The interlocking member 2 has an engaged portion 2 a that can be engaged with an engaging portion Ga formed on the throttle grip G, and can rotate in conjunction with a rotation operation of the throttle grip G. Specifically, as shown in FIG. 11, the interlocking member 2 according to the present embodiment is formed continuously with the engaged portion 2a, the accommodation groove 2b, the flange 2c, the gear 2d, and the accommodation groove 2b. It consists of the annular member which has the latching | locking part 2e and the penetration hole 2f which can penetrate the handlebar H. In this embodiment, the interlocking member 2 has a sliding surface n1 which will be described in detail later.

  The engaged portion 2a has a convex shape formed at a position corresponding to the engaging portion Ga of the throttle grip G, and interlocks in a state where the engaging portion Ga is fitted and engaged with the engaged portion 2a. The base end side of the throttle grip G is connected to the member 2. Thereby, the interlocking member 2 can also rotate with the rotation of the throttle grip G. The engaged portion 2a is formed on the surface of the interlocking member 2 (one surface that can face the outside as shown in FIG. 4 when assembled to the case 1) and the other of the interlocking member 2 As shown in FIG. 11, the surface is formed with an accommodation groove 2b, a locking portion 2e, and a sliding surface n1.

  The housing groove 2b has a groove shape formed on the other surface of the interlocking member 2 over the circumferential direction (rotating direction) of the interlocking member 2, and is configured to accommodate the return spring 4. The interlocking member 2 has a flange 2c formed in the circumferential direction and a gear 2d formed in a predetermined range. As shown in FIG. 6, the gear 2 d is assembled in a state of meshing with a gear formed on the outer periphery of the rotating member 6, and the rotating member 6 rotates as the interlocking member 2 rotates. .

  The rotating member 6 can rotate in conjunction with the rotation of the interlocking member 2 as described above, and is accommodated in the second recess B of the case 1 and centered on the axis L1 (see FIGS. 6 to 8). It is supposed to be freely rotatable. Thus, when the interlocking member 2 rotates, the rotating member 6 rotates at a rotation angle corresponding to the rotation angle. A magnet m is attached to the rotating member 6, and the direction of the magnetic field generated from the magnet m changes as the rotating member 6 rotates. 7 and 8, a symbol a indicates a torsion coil spring that urges the rotating member 6 toward the interlocking member 2 side.

  As shown in FIGS. 7 and 8, the magnetic sensor 7 (rotation angle detecting means) is composed of a sensor disposed at a position on the extension line of the axis L <b> 1 of the rotating member 6, and from a magnet m attached to the rotating member 6. The rotation angle of the throttle grip G can be detected by detecting the magnetic change (change in the direction of the magnetic field) that occurs. Specifically, the magnetic sensor 7 can obtain an output voltage in accordance with a magnetic field change (change in magnetic flux density) of the magnet m. For example, a Hall element (specifically, a magnetic sensor using the Hall effect). Is constituted by a linear Hall IC capable of obtaining an output voltage proportional to the magnetic field (magnetic flux density) of the magnet m. The magnetic sensor 7 according to the present embodiment is attached to a printed board 8 on which a predetermined electric circuit is formed by printing.

  When the interlocking member 2 rotates in the same direction as the throttle grip G rotates, the rotating member 6 also rotates in accordance with the gear ratio (the gear ratio of the interlocking member 2 and the rotating member 6). The magnet m attached to the rotating member 6 also rotates by the same angle. Thereby, since the magnetic field changes depending on the rotation angle, 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) is detected based on the output voltage. It is possible to do. The detected rotation angle of the throttle grip G is transmitted as an electric signal to an ECU (Engine Control Unit) mounted on the two-wheeled vehicle, and according to the transmitted rotation angle of the throttle grip G of the vehicle. The engine can be controlled.

  The return spring 4 is constituted by a biasing means that biases the throttle grip G and the interlocking member 2 toward the initial position when the throttle grip G is rotated. As shown in FIG. 15, the return spring 4 according to the present embodiment includes a torsion coil spring having one end 4a and the other end 4b, and a coil portion 4c, and the one end 4a is a locking portion 2e (see FIG. 11) and the other end 4b is engaged with and engaged with the engaging portion 1f (see FIG. 10) of the case 1.

  That is, one end 4a of the return spring 4 is attached to the interlocking member 2 and the other end 4b is attached to the case 1 and assembled. When the throttle grip G is rotated, the urging force of the return spring 4 is increased. Since the interlocking member 2 rotates against this, the urging force is transmitted to the throttle grip G, and a force for returning the throttle grip G and the interlocking member 2 to the initial position acts.

  Further, as shown in FIGS. 11 and 13, the locking portion 2 e that locks the one end 4 a of the return spring 4 is formed on the inner diameter side of the housing groove 2 b in the interlocking member 2 (the housing groove 2 b It is formed at a position inside the formation position). That is, the accommodation groove 2b according to the present embodiment is formed on the outer diameter side of the interlocking member 2 from the engaged portion 2a (a position outside the position where the engaged portion 2a is formed with respect to the center of the interlocking member 2). Therefore, the locking portion 2e can be formed using a space generated at a position inside the receiving groove 2b (a space on the surface opposite to the surface on which the engaged portion 2e is formed). .

  Here, as shown in FIGS. 7 and 12, the return spring 4 according to the present embodiment includes at least a part of the coil portion 4 c accommodated in the accommodation groove 2 b while rotating in the rotational axis direction of the interlocking member 2 (left and right in the figure). (Direction) is offset (overlapping dimension t within dimension α) and assembled. The dimension α in this case indicates the width dimension of the interlocking member 2 and is the dimension of the surface extending in the same direction as the thickness dimension β of the case 1. Note that the return spring 4 according to the present embodiment is assembled such that a part of the coil part 4c is offset by the dimension t within the dimension α in the rotation axis direction of the interlocking member 2, but the entire coil part 4c is assembled. The interlocking member 2 may be assembled with an offset within the dimension α in the rotation axis direction.

  Furthermore, as shown in FIGS. 11 and 13, the housing groove 2 b according to this embodiment is formed on the outer diameter side of the interlocking member 2 (formation of the engaged portion 2 a with respect to the center of the interlocking member 2). (Position outside the position). As a result, the torsion coil spring constituting the return spring 4 uses a coil having a large diameter of the coil portion 4c, and the biasing force (spring load) is adjusted by arbitrarily setting the number of turns of the coil portion 4c. can do.

  That is, as in this embodiment, when the diameter of the coil portion 4c of the return spring 4 is large, the spring constant becomes small and the urging force becomes small. Therefore, the lower limit side of the urging force (setting spring load) that can be set accordingly. In addition, the upper limit side of the urging force (set spring load) that can be set can be increased by reducing the number of turns of the coil portion 4c. Thus, the adjustment range of the urging force by the return spring 4 (the range of the spring load that can be set) can be widened, and the degree of freedom in setting the spring load can be improved.

  The friction plate 3 (resistance force applying means) is an annular member that is assembled in contact with the interlocking member 2 and can slide against the interlocking member 2 and apply a resistance force when the throttle grip G is rotated. As shown in FIG. 14, a plurality of convex shapes 3 a (three in the embodiment in the circumferential direction) are integrally formed on one surface, and the other surface is a sliding surface n <b> 1 of the interlocking member 2. It is configured to be assembled in contact. On the other hand, as shown in FIG. 10, the opening edge 1b of the insertion hole 1a in the case 1 is formed with a concave fitting shape 1c that can be fitted and fitted with the convex shape 3a of the friction plate 3. The friction plate 3 is attached to the case 1 by fitting 3a into the fitting shape 1f.

  Note that the friction plate 3 according to the present embodiment has a convex shape 3a formed on one surface, but instead of or together with this, a concave shape is formed and the opening edge of the insertion hole 1a in the case 1 is formed. 1b is formed with a convex fitting shape that can be fitted in conformity with the concave shape of the friction plate 3, and the friction plate 3 is attached to the case 1 by fitting the concave shape into the fitting shape. You may do it. Thus, the friction plate 3 is rotated by fitting the convex shape 3a (or concave shape) formed on one surface into the fitting shape formed in the opening edge 1b of the insertion hole 1a in the case 1. It can be fixed to the direction.

  In addition, the opening edge 1b of the insertion hole 1a in the case 1 has a plurality of receiving holes 1d (in this embodiment) for receiving a coil spring c (biasing means) that biases the friction plate 3 toward the interlocking member 2 side. Are formed at equal intervals in the circumferential direction. As shown in FIG. 16, after the coil springs c are accommodated in the respective accommodation holes 1d, the convex plate 3a is fitted into the fitting shape 1c as shown in FIG. 1 can be attached to the opening edge 1b of the insertion hole 1a. Further, as shown in FIG. 14, a boss portion 3 b is formed at a position corresponding to the accommodation hole 1 d in the friction plate 3, and the friction plate 3 is attached to the opening edge portion 1 b of the insertion hole 1 a in the case 1. Then, the boss 3b can be inserted into the receiving hole 1d and the coil spring c can be securely held.

  Thus, when the interlocking member 2 is housed and assembled in the first recess A with the friction plate 3 attached to the opening edge 1b of the insertion hole 1a in the case 1, as shown in FIG. The contact surface n2 of the biased friction plate 3 contacts the sliding surface n1 of the interlocking member 2. Therefore, when the interlocking member 2 is rotated by the rotation operation of the throttle grip G, the contact surface n2 slides with respect to the sliding surface n1 to generate a frictional force, so that a desired rotational load can be generated. is there.

  Here, as shown in FIG. 11, the interlocking member 2 according to the present embodiment has a housing groove 2b for housing the return spring 4, and a friction plate 3 (on the inner diameter side (inside) of the housing groove 2b. A sliding surface n1 is formed on which the resistance applying means) can slide. That is, in the interlocking member 2, the sliding surface n1 is formed in the circumferential direction on the inner diameter side (side closer to the rotating shaft), and the accommodation groove 2b is formed in the circumferential direction on the outer side (outer diameter side). The sliding surface n1 and the receiving groove 2b are formed concentrically around the insertion hole 2f. Further, the interlocking member 2 according to the present embodiment is configured such that the engaged portion 2a is formed on one surface, and the accommodation groove 2b and the sliding surface n1 are formed on the other surface.

  Furthermore, the case 1 according to the present embodiment has an accommodating recess 1e that can accommodate the magnetic sensor 7 (rotation angle detecting means) and the printed circuit board 8, as shown in FIGS. The housing recess 1e includes a first space S1 in which the magnetic sensor 7 is located, a second space S2 extending from the first space S1 in the width direction Y of the case 1, and a rotating member 6 from the second space S2. A third space S3 formed in the outer diameter direction (right direction in FIGS. 18 and 19) and over the position where the rotation member 6 is attached (second recess B in the present embodiment) and the adjacent position. And the printed circuit board 8 is accommodated from the first space S1 to the second space S2, and a wiring connection portion N for electrically connecting the printed circuit board 8 and the vehicle side is located in the third space S3. It is supposed to be.

  That is, the first space S1 and the second space S2 are substantially over the width direction Y of the case 1 (the direction orthogonal to the rotation axis L1 of the rotating member 6 as shown in FIGS. 8, 10, 16, and 17). Since the printed circuit board 8 is accommodated by being formed in a straight line shape, the connection part N formed on the printed circuit board 8 is located in the third space S3 formed at a position adjacent to the second concave part B. The connecting portion N can be disposed in a dead space at a position adjacent to the dead space, and the dead space can be effectively used. The connecting portion N may be composed of a coupler, a connector, or the like for connecting the tip of the wiring h, or a portion where the wiring h is directly connected to the electric circuit of the printed circuit board 8 by soldering or the like. It may be.

  In addition, as shown in FIGS. 18 and 19, the case 1 according to the present embodiment has an L-shaped opening that allows the first space S1, the second space S2, and the third space S3 to face the outside. . Note that the third space S3 according to the present embodiment has a boss portion b in which a screw hole for a mounting screw is formed. However, the third space S3 has no boss portion b or a boss portion in another space. It is good also as what b was formed.

  Furthermore, the case 1 according to the present embodiment is integrally formed with a fixing portion ha for fixing the wiring h in a state of extending toward the third space S3. That is, in a state where the vicinity of the tip end of the wiring h is in contact with the fixing portion ha, the tip of the wiring h is directed to the connection portion N located in the third space S3 by fixing with a binding band or the like, for example. It is comprised so that it may become.

  Furthermore, as shown in FIG. 19, the case 1 according to the present embodiment includes a recess (second recess B in the present embodiment) that holds the rotating member 6 rotatably, a first space S1, and a second space S2. And the housing recess 1e having the third space S3 are defined (partitioned so as to be independent from each other). However, the accommodating space 1e is filled with a predetermined resin material or the like in a state where the printed circuit board 8 is accommodated.

  According to the above embodiment, the interlocking member 2 is formed with the accommodating groove 2b for accommodating the return spring 4, and the return spring 4 is accommodated in the accommodating groove 2b while the dimension α in the rotational axis direction of the interlocking member 2 is set. Since the housing groove 2b is formed on the outer diameter side of the engaged portion 2a in the interlocking member 2, the thickness direction of the case 1 in which the interlocking member 2 and the return spring 4 are accommodated is set. , And the degree of freedom in setting the urging force by the return spring can be improved. Therefore, since the dimension γ (see FIG. 1) in the thickness direction of the cover member C covering the case 1 can be reduced, a separate switch case or the like can be easily disposed at the distal end portion of the handle bar H. In addition, the urging force of the return spring can be easily set according to the vehicle type and the driver's preference.

  In addition, a rotation member 6 that rotates with the rotation of the interlocking member 2 is provided, and a magnetic sensor 7 (rotation angle detection means) detects the rotation angle of the rotation member 6 to thereby determine the rotation angle of the throttle grip G. Therefore, the interlocking member 2 can have both a holding function for stably holding the return spring 4 in the accommodation groove 2 b and a transmission function for transmitting the rotational force of the throttle grip G to the rotating member 6.

  Furthermore, the interlocking member 2 according to the present embodiment is formed continuously with the accommodation groove 2b, and has a locking portion 2e to which the one end 4a of the return spring 4 is locked. Since the urging force of the return spring 4 accommodated in the accommodation groove 2b can be applied to the interlocking member 2 and the throttle grip G efficiently and stably. The end 4a of the return spring 4 can be locked by utilizing the space on the engaged portion 2a side (inner diameter side) of the member 2 relative to the housing groove 2b. Furthermore, the interlocking member 2 according to the present embodiment is formed of an annular member in which the engaged portion 2a is formed on one surface and the receiving groove 2b is formed on the other surface, so that the rotation of the throttle grip G The return spring 4 can be housed in the housing groove 2b and stably held while the operation force is reliably transmitted.

  In addition, the case 1 according to this embodiment has an insertion hole 1a through which the handle bar H can be inserted, and a friction plate 3 (resistance force applying means) along the opening edge 1b of the insertion hole 1a. Since it is attached, the opening edge portion 1b of the insertion hole 1a in the case 1 can be used effectively, and the size of the case 1 housing the friction plate 3 (resistance force applying means) can be reduced.

  Further, the resistance applying means according to the present embodiment is assembled so that the convex shape 3a (or concave shape) is integrally formed on one surface and the other surface is in contact with the sliding surface n1 of the interlocking member 2. A fitting shape 1c that is made of the friction plate 3 and that can be fitted in conformity with the convex shape 3a (or concave shape) of the resistance applying means is formed at the opening edge 1b of the insertion hole 1a in the case 1. Since the friction plate 3 is attached to the case 1 by fitting the convex shape 3a (or concave shape) to the fitting shape 1c, the friction plate 3 is securely fixed in the rotational direction. Miniaturization can be achieved.

  Further, the opening edge 1b of the insertion hole 1a in the case 1 has a receiving hole 1d for receiving a coil spring c (biasing means) that biases the friction plate 3 (resistance force applying means) to the interlocking member 2 side. Since it is formed, the case 1 can be downsized while the resistance force by the friction plate 3 is reliably generated by the urging force of the coil spring c. Instead of the coil spring c, other general-purpose urging means may be accommodated in the accommodation hole 1d.

  Furthermore, the case 1 according to the present embodiment is provided with a return spring 4 for urging the throttle grip G and the interlocking member 2 toward the initial position when the throttle grip G is rotated. The housing groove 2b for housing the return spring 4 is formed, and the sliding surface n1 capable of sliding the friction plate 3 (resistance force applying means) is formed on the inner diameter side of the housing groove 2b. It is possible to make effective use of the space inside.

  Further, the interlocking member 2 according to the present embodiment is formed of an annular member in which the engaged portion 2a is formed on one surface and the housing groove 2b and the sliding surface n1 are formed on the other surface. The return spring 4 can be housed in the housing groove 2b and can be stably held while reliably transmitting the rotational operation force of the grip G, and the sliding surface n1 of the friction plate 3 (resistance force applying means). Can be smoothly slid.

  In addition, according to the present embodiment, the housing recess 1e formed in the case 1 extends in the first space S1 in which the magnetic sensor 7 is located and in the width direction Y of the case 1 from the first space S1. The second space S2 and the outer diameter direction of the rotating member 6 from the second space S2 (right direction in FIGS. 18 and 19), and the mounting portion of the rotating member 6 (second recess B in the present embodiment). And a third space S3 formed between adjacent positions, the printed circuit board 8 is accommodated from the first space S1 to the second space S2, and the printed circuit board 8 is electrically connected to the vehicle side. Since the connecting portion N of the wiring h to be connected is located in the third space S3, the dead space at the outer diameter side position of the rotating member 6 can be used effectively, and the thickness of the case 1 housing the printed circuit board 8 The direction dimension α can be reduced.

  In addition, the case 1 according to the present embodiment has an L-shaped opening that faces the first space S1, the second space S2, and the third space S3 to the outside, so that the magnetic sensor 7 (rotation angle detection means) and The printed circuit board 8 to which the connection portion N for the wiring h is attached can be easily inserted and accommodated in the accommodation space 1e, and the assembling workability can be improved. Furthermore, since the case 1 according to the present embodiment is formed with a fixing portion ha for fixing the wiring h in a state of extending toward the third space S3, the connection portion N between the wiring h and the printed circuit board 8 is formed. The connection state between the printed circuit board 8 and the vehicle side can be made stable.

  Furthermore, in the case 1 according to the present embodiment, the second recess B that rotatably holds the rotating member 6 and the housing recess 1e having the first space S1, the second space S2, and the third space S3 are defined. Thus, the rotating member 6 can be stably rotated, and the housing recess 1e can be filled with resin or the like to be waterproof and dustproof.

  Furthermore, according to the present embodiment, in addition to the configuration in which the accommodation space 1e includes the first space S1, the second space S2, and the third space, the case 1 includes the throttle grip G and the throttle grip G when the throttle grip G is rotated. A return spring for urging the interlocking member 2 toward the initial position is attached. The interlocking member 2 is formed with a receiving groove 2b for receiving the return spring 4, and the return spring 4 is received in the receiving groove 2b. However, since the assembly is offset within the dimension α in the rotation axis direction of the interlocking member 2, the dimension β in the thickness direction of the case 1 can be further reduced.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, instead of the magnetic sensor 7 that detects the rotation angle of the throttle grip G, another general-purpose sensor (the magnet magnetism is detected). It is not limited to those to be detected, and may be not only non-contact type sensors but also contact type sensors. In this embodiment, the rotation angle of the rotation member 6 is detected to detect the rotation angle of the throttle grip G. However, the rotation member 6 is not provided, and a magnet is formed on the interlocking member 2. The rotation angle of the throttle grip G may be detected by detecting the magnetic change of the magnet with a magnetic sensor (rotation angle detection means).

  Furthermore, although the friction plate 3 (resistance force imparting means) according to the present embodiment is attached to the opening edge 1b of the insertion hole 1a in the case 1, it may be attached to another part. Further, the housing recess 1e of the case 1 may be formed with only the first space S1. 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.).

  The interlocking member is formed with an accommodation groove for accommodating the return spring, the return spring is in a state offset within the dimension in the rotation axis direction of the interlocking member while being accommodated in the accommodation groove, and the accommodation groove is As long as the throttle grip device is formed on the outer diameter side of the engaged portion of the interlocking member, the throttle grip device can be applied to a device having a different external shape or a device to which another function is added.

DESCRIPTION OF SYMBOLS 1 Case 1a Insertion hole 1b Opening edge part 1c Fit shape 1d Accommodation hole 1e Accommodation recessed part 1f Locking part 2 Interlocking member 2a Engagement part 2b Housing groove 2c Flange 2d Gear 2e Locking part 2f Insertion hole 3 Friction plate (resistance) Force giving means)
3a Convex shape 3b Boss 4 Return spring (torsion coil spring)
4a One end 4b The other end 4c Coil portion 5 Lid member 6 Rotating member 7 Magnetic sensor (rotation angle detecting means)
8 Printed circuit board n1 Sliding surface n2 Abutting surface G Throttle grip Ga Engaging portion h Wiring ha Fixed portion N Connecting portion A First concave portion B Second concave portion S1 First space S2 Second space S3 Third space

Claims (4)

A throttle grip that is attached to the tip of a vehicle handlebar and that can be rotated by a driver;
An interlocking member that has an engaged portion that can engage with an engaging portion formed on the throttle grip, and that can rotate in conjunction with the throttle grip;
Rotation angle detecting means capable of detecting the rotation angle of the throttle grip by detecting the rotation angle of the interlocking member;
A return spring composed of a torsion coil spring that urges the throttle grip and the interlocking member toward an initial position when the throttle grip is rotated;
A case in which the interlocking member is rotatably held and the return spring is attached;
A throttle grip device capable of controlling a vehicle engine in accordance with a rotation angle of the throttle grip detected by the rotation angle detection means,
The interlocking member is formed with an accommodation groove for accommodating the return spring, the return spring is in a state offset within the dimension of the interlocking member in the rotation axis direction while being accommodated in the accommodation groove, and The throttle grip device according to claim 1, wherein the housing groove is formed on an outer diameter side of the engaged portion of the interlocking member.   A rotation member that rotates as the interlocking member rotates is provided, and the rotation angle detection unit can detect the rotation angle of the throttle grip by detecting the rotation angle of the rotation member. The throttle grip device according to claim 1.   The interlocking member is formed to be continuous with the housing groove, and has a latching portion to which one end of the return spring is latched, and the latching portion is formed on the inner diameter side of the housing groove in the interlocking member. The throttle grip device according to claim 1 or 2, wherein the throttle grip device is provided.   The interlocking member includes an annular member in which the engaged portion is formed on one surface and the receiving groove is formed on the other surface. The throttle grip device as described in 1.

Images