JP2010071234A - Throttle opening detection apparatus for saddle-type vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constitute a resistance force adding means by reduced number of parts simply in a throttle opening detection apparatus for a saddle-type vehicle constituted to support a throttle pipe fixed on a bar handle on an end part of the bar handle turnably, and add resistance force to the turning operation of a throttle grip being unable to turn relatively with the throttle pipe by the resistance force adding means. <P>SOLUTION: The resistance force adding means 32 is composed of a collar part 13b provided on the throttle pipe 13 supported on the bar handle 11 to move in the axial direction, overhanging outward in the radial direction, and arranged in a case 12, a slide member 33 sandwiched between the collar part 13b and the case 12, and a resilient member 34 exerting resilient force for energizing the collar part 13b to press a washer 33 against the case 12. The resilient member 34 is provided between the bar handle 11 or the case 12 and the throttle pipe 13. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention includes a throttle pipe that is rotatably supported at an end of the bar handle by being partially inserted into a case fixed to the bar handle, and a relative rotation to the throttle pipe so as to cover the throttle pipe. A throttle grip mounted immovably; a throttle sensor disposed at a fixed position in the case so as to detect a rotation operation amount of the throttle grip according to rotation of the throttle pipe; and the throttle grip The present invention relates to a throttle opening detection device for a saddle-ride type vehicle comprising resistance force adding means for adding a resistance force to the turning operation.

  When an occupant of a motorcycle rotates the throttle grip, it is not based on the mechanical movement of the cable connected to the throttle grip, but based on an electric signal from a sensor that electrically detects the amount of rotation of the throttle grip. Patent Document 1 discloses that a throttle valve is operated directly. In this case, there is no bending, stretching or friction of the cable, so the rotation load of the throttle grip by the occupant is reduced, and the throttle grip can be rotated with extremely light operating force, but the rotation amount of the throttle grip is adjusted. A moderate load may be preferred.

Therefore, a rotational load of the throttle grip is generated by a frictional force generated by pressing a friction plate with a plurality of elastic members on a gear constituting a part of a gear mechanism provided between the throttle grip and the throttle sensor. Japanese Patent Application Laid-Open No. H10-228707 discloses a resistance force adding means that is housed in a case together with a throttle sensor.
Japanese Patent No. 2902490 Japanese Patent No. 4112876

  By the way, according to what was indicated by the above-mentioned patent documents 2, although it is easy to adjust the amount of rotation of a throttle grip, resistance addition means has a plurality of elastic members, and is constituted complicated. .

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a throttle opening detection device for a saddle-ride type vehicle in which the resistance adding means can be easily configured with a small number of parts. .

  In order to achieve the above object, the invention according to claim 1 is characterized in that a throttle pipe that is rotatably supported at an end portion of the bar handle by being partially inserted into a case fixed to the bar handle, A throttle grip that is mounted on the throttle pipe so as not to rotate relative to the throttle pipe so as to cover the throttle pipe, and a rotation position of the throttle grip is detected according to the rotation of the throttle pipe. A throttle opening detecting device for a saddle-ride type vehicle, comprising: a throttle sensor disposed on the throttle grip; and a resistance force adding means for adding a resistance force to a rotation operation of the throttle grip. It is provided on the throttle pipe that is supported so that it can move in the axial direction on the handle and projects outward in the radial direction. A collar part to be disposed; a sliding member sandwiched between the collar part and the case; and a resilient member that exerts a resilient force that urges the collar part to press the sliding member against the case; The elastic member is interposed between the bar handle or the case and the throttle pipe.

  According to a second aspect of the invention, in addition to the configuration of the first aspect of the invention, the rotational position of the rotor disposed in the case is adjusted so that the throttle sensor rotates together with the throttle pipe. It is a non-contact type magnetic sensor that is detected in a non-contact state with a rotor.

  Furthermore, in the invention according to claim 3, in addition to the configuration of the invention according to claim 1 or 2, the resilient member is disposed in the throttle pipe outside the case, and the end of the bar handle and It is provided between the throttle pipes.

  The washer 33 according to the embodiment corresponds to the sliding member of the present invention, and the coil spring 34 corresponds to the resilient member of the present invention.

  According to the first aspect of the present invention, the resistance applying means is disposed in the case fixed to the bar handle, and the sliding member sandwiched between the flange provided on the throttle pipe and the case is used as the bar handle or the case. And the flange portion is urged to be pressed against the case by a resilient member interposed between the throttle pipe and the resistance adding means can be configured with a simple structure with a reduced number of parts. it can.

  According to the second aspect of the present invention, since the throttle sensor is a non-contact type magnetic sensor, it is possible to prevent wear caused by detection by the throttle sensor and contribute to improvement of durability.

  According to the third aspect of the present invention, since the resilient member is disposed in the throttle pipe outside the case and provided between the end of the bar handle and the throttle pipe, the resilient member is disposed in the case. The case can be reduced in size.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 to 5 show an embodiment of the present invention. FIG. 1 is a view of the right end portion of the bar handle as viewed from the rear side, and FIG. 2 is a right end portion of the bar handle as viewed from the same direction as FIG. 3 is an enlarged view of the portion indicated by the arrow 3 in FIG. 2, FIG. 4 is a perspective view showing the vicinity of the engaging portion of the throttle pipe to the rotor, and FIG. 5 is an enlarged view of the portion indicated by the arrow 5 in FIG. .

  First, in FIG. 1 and FIG. 2, a case 12 is fixed to a portion near the outer end (right end) of a pipe-shaped bar handle 11 provided in a motorcycle which is a saddle-ride type vehicle. A throttle pipe 13 which is partially inserted and surrounds the bar handle 11 is supported on the outer end (right end) of the bar handle 11 so as to be rotatable and movable in the axial direction, and covers the throttle pipe 13 14 is attached to the throttle pipe 13 so as not to be relatively rotatable. A brake lever 15 is rotatably attached to the bar handle 11 so that the bar handle 11 can be rotated with the right hand holding the throttle grip 14. At the outer end of the throttle pipe 13, a small-diameter support cylinder portion 13 a that is coaxially positioned outwardly from the outer end of the bar handle 11 is provided coaxially and integrally with the support pipe portion 13 a and the throttle pipe 13. A cap 16 is attached to the right end of the grip 14.

  A dynamic damper 17 is built in the bar handle 11 at a portion corresponding to the throttle grip 14, and the dynamic damper 17 has both end portions of a cylindrical weight 18 inserted into the bar handle 11. Rubber rings 19 and 19 that elastically contact the inner periphery of the bar handle 11 are mounted on the outer periphery.

  Referring also to FIG. 3, the case 12 is formed by combining an upper case half 21 and a lower case half 22 made of synthetic resin with each other so that the bar handle 11 is sandwiched from above and below. Mounted fixedly.

  The wall 12a of the case 12 facing the throttle grip 14 is provided with a first insertion hole 23 coaxial with the bar handle 11 and the throttle pipe 13, and the inner end side portion of the throttle pipe 13 is the first insertion hole. The hole 23 is plunged into the case 12.

  A throttle sensor 25 that detects the amount of rotation of the throttle grip 14 according to the rotation of the throttle pipe 14 is disposed at a fixed position in the case 12. It is housed and fixed in a sensor housing 26 fixedly disposed therein. The sensor housing 26 includes a ring portion 26a that is coaxially surrounded by the bar handle 11 in the case 12, and is connected to the ring portion 26a below the bar handle 11 on the side opposite to the end wall 12a of the case 12. The throttle sensor 25 is accommodated in the cylinder part 26b.

  Inside the case 12, the throttle pipe 13 is connected to a flange portion 13b projecting radially outward at a position close to the end wall 12a of the case 12, and a radial intermediate portion of the flange portion 13b. A pair of protrusions 13c and 13d that extend in the opposite direction to the end wall 12a and are spaced apart in the circumferential direction of the flange 13b are integrally provided.

  On the other hand, a rotor 27 that coaxially surrounds the bar handle 11 so as to rotate in conjunction with the rotation of the throttle pipe 13 is accommodated in the case 12, and the rotor 27 and the bar handle 11 are accommodated. A pair of annular seal members 28 and 29 are interposed between both ends of the ring portion 26a of the sensor housing 26 in the axial direction.

  A pair of protrusions 27a, 27a to be detected that are opposed to each other with an interval in the axial direction are provided at one location on the outer periphery of the rotor 27 so as to extend in the circumferential direction. On the other hand, the throttle sensor 25 is a non-contact type magnetic sensor, and the detection unit 25a included in the throttle sensor 25 detects the rotational position of the rotor 27 in a non-contact state with the rotor 27. It is inserted between the protrusions 27a and 27a for detection.

  In FIG. 4, a locking protrusion 27 b protruding inward in the radial direction is integrally provided at the end of the rotor 27 on the flange 13 b side, and the locking protrusion 27 b is formed on the throttle pipe 13. The protrusion 13c is brought into contact with the protrusion 13c between the protrusions 13c and 13d of the throttle pipe 13 so as to come into contact with the protrusion 13c from the upper side along the rotation direction 30 toward the closing side by the throttle grip 14 and the throttle pipe 13. Be placed.

  Further, as shown in FIGS. 2 and 3, a coil-like shape that energizes the rotor 27 in the rotating direction 30 toward the closing side by the throttle grip 14 and the throttle pipe 13 is provided between the rotor 27 and the bar handle 11. A torsion spring 31 is provided. Therefore, the rotor 27 is rotated by the spring force of the torsion spring 31 following the rotation of the throttle grip 14 and the throttle pipe 13, and the spring force of the torsion spring 31 is the throttle grip 14. And what is necessary is just to exhibit the weak spring force which only rotates the rotor 27 following the rotation of the throttle pipe 13.

  Here, assuming that the spring force by the torsion spring 31 cannot be obtained for some reason, the rotor 27 is biased toward the side in which the locking projection 27b comes into contact with the projection 13c of the throttle pipe 13. However, since the locking projection 27b is disposed between the projections 13c and 13d of the throttle pipe 13, the rotation of the rotor 27 according to the rotation of the throttle grip 14 and the throttle pipe 13 is prevented. You can definitely get it.

  A resistance force is applied to the turning operation of the throttle grip 14 by a resistance force adding means 32. The resistance force adding means 32 is supported by the bar handle 11 so as to be movable in the axial direction. A flange 13b provided on the pipe 13 and projecting radially outward and disposed in the case 12, and a washer 33 as a sliding member sandwiched between the flange 13c and the end wall 12a of the case 12; And a coil spring 34 that is a resilient member that exerts a resilient force that urges the flange 13b so as to press the washer 33 against the end wall 12a of the case 12. It is interposed between the handle 11 and the throttle pipe 13.

  Referring also to FIG. 4, the coil spring 34 is disposed in the throttle pipe 13 outside the case 12 and is provided between the end of the bar handle 11 and the throttle pipe 13. The first spring receiving member 36 that is in contact with the outer end of the bar handle 11 via a washer 35 and the inner end of the support cylinder portion 13a that is disposed outward from the outer end of the bar handle 11 are connected. And a second spring receiving member 37 that contacts an annular step 13d formed at the outer end of the throttle pipe 13 so as to face inward in the axial direction. Thus, the throttle pipe 13 is urged toward the axially outer side, that is, the side sandwiching the washer 33 between the end wall 12a of the case 12 and the flange 13b by the spring force exerted by the coil spring 34. become.

  Moreover, the first and second spring receiving members 36 and 37 are integrally provided with cylindrical guide tube portions 36a and 37a that are inserted into both end portions of the coil spring 34 so as to guide both end portions of the coil spring 34. .

  Next, the operation of this embodiment will be described. A resistance force adding means 32 for applying a resistance force to the turning operation of the throttle grip 14 is provided on the throttle pipe 13 supported by the bar handle 11 so as to be movable in the axial direction. A flange 13b that is provided and projects radially outward and is disposed in the case 12, a washer 33 sandwiched between the flange 13b and the case 12, and a flange so as to press the washer 33 against the case 12 Since the coil spring 34 is interposed between the bar handle 11 and the throttle pipe 13, the resistance adding means 32 is reduced in the number of parts. It can be configured with a simple structure.

  Moreover, since the coil spring 34 is disposed outside the case 12 in the throttle pipe 13 and provided between the end of the bar handle 11 and the throttle pipe 13, the coil spring 34 is not disposed in the case 12. The case 12 can be reduced in size.

  Further, since the throttle sensor 25 disposed in the case 12 is a non-contact type magnetic sensor, it is possible to prevent wear caused by detection by the throttle sensor 25 and contribute to improvement of durability.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. Is possible.

It is the figure which looked at the right end part of the bar handle from the back side. It is a longitudinal cross-sectional view of the right end part of the bar handle seen from the same direction as FIG. FIG. 3 is an enlarged view of a portion indicated by an arrow 3 in FIG. 2. It is a perspective view which shows the engaging part vicinity to the rotor of a throttle pipe. FIG. 5 is an enlarged view of a part indicated by an arrow 5 in FIG. 2.

Explanation of symbols

11 ... Bar handle 12 ... Case 13 ... Throttle pipe 13b ... Hut 14 ... Throttle grip 25 ... Throttle sensor 27 ... Rotor 32 ... Resistance adding means 33- ..Washers 34 that are sliding members ... Coil springs that are elastic members

Claims (3)

  A throttle pipe (13) that is rotatably supported at an end of the bar handle (11) by being partially inserted into a case (12) fixed to the bar handle (11), and the throttle pipe (13 ) And a throttle grip (14) mounted on the throttle pipe (13) so as not to rotate relative to the throttle pipe (13), and the amount of rotation of the throttle grip (14) according to the rotation of the throttle pipe (13). A throttle sensor (25) disposed at a fixed position in the case (12) so as to detect, and a resistance force adding means (32) for adding a resistance force to the rotation operation of the throttle grip (14); In the throttle opening degree detecting device for saddle-ride type vehicle, the resistance adding means (32) is supported by the bar handle (11) so as to be movable in the axial direction. A flange (13b) provided on the throttle pipe (13) and projecting radially outward and disposed in the case (12) is sandwiched between the flange (13b) and the case (12). A sliding member (33) and a resilient member (34) that exerts a resilient force that biases the flange (13b) so as to press the sliding member (33) against the case (12). And the elastic member (34) is interposed between the bar handle (11) or the case (12) and the throttle pipe (13). Opening detection device.   The rotation position of the rotor (27) disposed in the case (12) so that the throttle sensor (25) rotates together with the throttle pipe (13) is not in contact with the rotor (27). 2. The throttle opening degree detecting device for a saddle-ride type vehicle according to claim 1, wherein the throttle opening degree detecting device is a non-contact type magnetic sensor which is detected by the above-described method.   The resilient member (34) is disposed in the throttle pipe (13) outside the case (12) and is provided between the end of the bar handle (11) and the throttle pipe (13). The throttle opening degree detection device for a saddle-ride type vehicle according to claim 1 or 2.

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