JP4262163B2 - Operation lever mounting structure for bar handle vehicles - Google Patents

Description

  The present invention relates to an operation lever mounting structure in a bar handle vehicle, and more particularly, an operation lever that operates a clutch and a brake mounted on a bar handle vehicle such as a motorcycle and a starter control switch mounted on a lever holder. This relates to the mounting structure.

In recent motorcycles, the starter that starts the engine is operated only when the clutch or brake operation lever is rotated by a grip operation so that the clutch is disengaged or the brake is braked. A starter control switch that is operated by turning the lever is provided. As a mounting structure of this starter control switch, an operation lever is pivotally supported at the tip of a lever holder attached to the handlebar, and a starter control switch is disposed between the pivotal support portion of the lever holder and the bar handle. There is one provided with a pushing arm that pushes the actuator of the starter control switch (for example, see Patent Document 1).
Japanese Utility Model Publication No.2-1468

  The above is designed so that the pusher arm pushes the actuator when the operating lever attached to the handlebar is fully stroked via the lever holder, so the operating lever is attached to the handlebar. Although there is no problem in the state where the lever is operated, if the lever is strongly rotated when checking the operation in the state before the handlebar is mounted with the lever and starter control switch assembled to the lever holder, the pusher arm will be There is a possibility that the starter control switch may be malfunctioned by pushing more than necessary. In addition, in Patent Document 1, since the starter control switch is incorporated into the lever holder, a starter control switch having a special shape is required, and the processing of the lever holder for incorporating the starter control switch becomes troublesome. It was.

  Accordingly, an object of the present invention is to provide an operating lever mounting structure in a bar handle vehicle that can prevent the starter control switch from being troubled by a turning operation of the operating lever before the handle bar is mounted.

In order to achieve the above object, the operation lever mounting structure in the bar handle vehicle of the present invention pivotally supports the operation lever on a lever holder protruding from the cylinder body of the hydraulic master cylinder device attached to the handle bar. The cylinder body is provided with a starter control switch, and when the cylinder body is mounted on the handlebar, the operating lever of the starter control switch is moved to the operation lever in a full stroke state where the operation lever is in contact with the handlebar. In a mounting structure of an operation lever in a bar handle vehicle that is pushed by a provided push arm, the starter control switch is screwed to the lower surface of the cylinder body with a screw, and the cylinder body is not attached to the handle bar. rotation amount of the operation lever relative to the lever holder in the said Siri The Dabodi at a position slightly beyond and the amount of rotation of the full stroke state when mounted on the handle bar, the pivot amount regulating portion for regulating the rotation of the operation lever relative to the lever holder abut each other, and the lever holder The operation levers are provided respectively .

Also, pushing direction before Symbol starter control switch operating element is suitable to be substantially parallel to the pushing direction of the piston of the hydraulic master cylinder apparatus.

  According to the mounting structure of the operation lever in the bar handle vehicle of the present invention, since the rotation amount of the operation lever with respect to the lever holder is regulated by the rotation amount regulating unit, the pushing arm can push the actuator more than necessary. This eliminates the problem of the starter control switch. As a result, the strength required for the starter control switch can be reduced, so that a simple starter control switch can be used. In addition, since the rotation amount restricting portion is provided at a position slightly exceeding the rotation amount of the operation lever in the full stroke state, the rotation amount restricting portion causes the operation lever to be rotated by the rotation amount restricting portion before the full stroke. There is no restriction, and as in the prior art, when the operating lever is fully stroked, the push arm pushes the actuator. Furthermore, in the full stroke state during normal use, a strong turning force from the operating lever is not applied to the rotation amount restricting portion, so that the rotation amount restricting portion does not require a high strength, and the manufacturing cost is only slightly increased.

  In the case where the operation lever is pivotally supported by a lever holder unit integrally formed with the hydraulic master cylinder device, the operation lever is not excessively rotated by the rotation amount restricting unit. However, no great force is applied, and deformation and damage can be prevented. Furthermore, the mounting strength of the starter control switch to the cylinder body can be reduced.

  In addition, by setting the pushing direction of the actuator and the pushing direction of the piston substantially in parallel, the positions of the starter control switch, the pushing arm, and the rotation amount regulating portion can be easily set.

  1 to 4 show a first embodiment in which the mounting structure of the operating lever of the present invention is applied to a clutch lever of a horizontal type hydraulic master cylinder device for a clutch. FIG. I sectional view, FIG. 2 is a main part rear view of the hydraulic master cylinder device for clutches, FIG. 3 is a front sectional view of main parts of the hydraulic master cylinder device for clutches, and FIG.

  The clutch hydraulic master cylinder device 1 includes a hydraulic master cylinder 3 attached to a handlebar 2 that steers a front wheel (not shown) at the front of the vehicle body, and a clutch lever 4 attached to the hydraulic master cylinder 3. And a push rod 5 interposed between them. The hydraulic master cylinder 3 is a horizontal type master cylinder having a cylinder body 6 with a bottomed cylinder hole 7 opened to the side of the vehicle body. A piston 8 is liquid-tight in the cylinder hole 7. A hydraulic chamber 10 having a union hole 9 is defined between the piston 8 and the bottom wall of the cylinder hole 7. The piston 8 is constantly urged toward the opening of the cylinder hole 7 by the elastic force of the return spring 11, and the backward limit when the piston 8 is not operated is restricted by the push rod 5. In addition, a reservoir 12 is provided in the upper part of the cylinder body 6, and a starter control switch 13 and a holder side rotation amount restricting part 14 for restricting the rotation amount of the clutch lever 4 (in the present invention) are provided in the lower part of the cylinder body 6. A rotation amount restricting portion).

  The starter control switch 13 is a state in which the starter for starting the engine is operable when the clutch lever 4 is gripped and operated to disengage the clutch. The actuator 13b is projected and retracted at one end surface of the switch body 13a. When the operating element 13b protrudes from the switch body 13a, the starter becomes inoperable. When the operating element 13b is pushed into the switch body 13a, the starter becomes operable. In addition, an energizing connector 13 c and a screw fastening portion 13 d for fixing to the cylinder body 6 with a screw 15 are provided on the other end surface of the switch body 13 a. The starter control switch 13 is attached to the lower surface of the cylinder body 6 by screwing a screw 15 inserted through the through hole of the screw fixing portion 13 d into a female screw drilled in the lower surface of the cylinder body 6.

  A pair of upper and lower lever holders 16 each having a pivot insertion hole project from the front end of the cylinder body 6 with a predetermined gap, and the clutch lever 4 is provided with a collar 17 and a pivot 18 on the lever holder 16. It is pivotally mounted so that it can be rotated. The clutch lever 4 is a two-piece type that is divided into a lever body 20 disposed in front of the grip 19 and a knocker 21 that pushes the push rod 5, and the clutch lever 4 is interposed between the lever body 20 and the knocker 21. A grip allowance adjusting mechanism 22 is provided.

  The lever body 20 includes a pivot base 20a that is pivotally supported between the lever holders 16 by the pivot 18, a grip operation unit 20b disposed substantially along the front of the grip 19, and a grip margin adjustment. A recess 20c for disposing the mechanism 22 and a push arm 20d protruding from the lower surface of the rotation base 20a are provided. The push arm 20d is formed on its side surface with a push surface 20e that pushes the actuator 13b of the starter control switch 13, and a base side surface that contacts the holder side rotation amount restricting portion 14 on the lever side. A rotation amount restricting portion 20f (a rotation amount restricting portion of the present invention) is formed. The pivot base 20a is formed with a plate-like upper arm and lower arm that are spaced apart in a bifurcated manner, and a knocker 21 is housed between the arms.

  The knocker 21 includes a rotation base portion 21a pivotally supported by the pivot 18, a working arm 21b extending from the rotation base portion 21a toward the distal end of the lever body, and a hydraulic master cylinder 3 side of the knocker 21. A hydraulic master cylinder side stopper piece 21c for regulating the amount of rotation and a lever body side stopper piece 21d for regulating the amount of rotation on the lever body 20 side are provided.

  Collar insertion holes for inserting the collars 17 are formed coaxially in the upper and lower arms of the lever body 20 and the rotation base 21a of the knocker 21, respectively. Further, the working arm 21 b is provided with an adjustment cam contact surface 21 e that faces the recess 20 c of the lever body 20 and a circular boss hole 21 f that faces the opening of the cylinder hole 7. A cylindrical piece member 23 is rotatably mounted in the boss hole 21f, and a mounting hole 23a for mounting the push rod 5 is recessed in the piece member 23.

  The grip allowance adjusting mechanism 22 includes an adjustment pin having a cam shaft portion 24a inserted into the concave portion 20c of the lever main body 20 and an operation dial 24b disposed on the upper surface of the lever main body 20, and the cam shaft portion 24a. Are provided with a plurality of cam surfaces set at unequal distances from the central axis. The grip allowance adjusting mechanism 22 rotates the operation dial 24b to selectively abut one cam surface of the plurality of cam surfaces against the adjusting cam abutting surface 21e of the knocker 21, thereby making the lever body The grip allowance set between the 20 grip operation portions 20b and the grip 19 can be adjusted for enlargement / reduction.

  Further, a spring 25 is contracted between the lever main body side stopper piece 21d and the distal end portion of the rotating base 20a of the lever main body 20, and a cam surface that contacts the adjusting cam contact surface 21e is arbitrarily selected. Even so, the selected cam surface is always in pressure contact with the adjusting cam abutting surface 21e due to the elastic force of the spring 25, so that rattling of the lever body 20 is suppressed.

  Before the lever main body 20 and the knocker 21 are mounted on the lever holder 16, the rotary base 21a of the knocker 21 is inserted between the upper arm and the lower arm of the rotary base 20a of the lever main body 20, and both the rotary bases 20a are inserted. , 21a are aligned and the collar 17 is inserted, so that the clutch lever 4 is temporarily assembled. In this state, the rotation base 20a is inserted between the lever holders 16, the collar 17 and the pivot insertion hole of the lever holder 16 are aligned, and the pivot 18 is inserted from the upper lever holder 16 side, and the nut 26 at the lower part of the lever holder is inserted. As a result, the lever main body 20 and the knocker 21 are pivotally supported around the pivot 18.

  The aforementioned push rod 5 is interposed between the clutch lever 4 mounted on the lever holder 16 and the piston 8 of the hydraulic master cylinder 3. The push rod 5 has a spherical portion 5a at the tip of the shaft portion. The spherical portion 5a is rotatably engaged with a hemispherical engagement hole 8a formed at the rear end of the piston 8, and the shaft The part is inserted into the mounting hole 23a of the piece member 23 attached to the knocker 21 and attached.

  On the clutch lever 4 mounted on the hydraulic master cylinder 3, the elastic force of the return spring 11 inside the hydraulic chamber 10 is constantly applied through the piston 8 and the push rod 5, and the position of the clutch lever 4 when not operated is The gripping operation part 20b of the lever body 20 and the grip are set by the contact between the hydraulic master cylinder side stopper piece 21c of the knocker 21 and one side wall of the cylinder body 6 and the cam surface selected by the gripping allowance adjusting mechanism 22. A predetermined grip allowance is formed between

  When the clutch lever 4 attached to the lever holder 16 of the hydraulic master cylinder 3 (not attached to the handlebar 2) is rotated to the piston pushing side with respect to the lever holder 16, the push rod 5 is moved. The piston 8 is pushed toward the bottom wall of the cylinder hole 7, and then the pushing surface 20e at the tip of the pushing arm 20d pushes the actuator 13b protruding from the switch body 13a of the starter control switch 13 to move the actuator 13b. Is pushed into the switch body 13a, and then the lever-side rotation amount restricting portion 20f of the base of the push arm 20d is brought into contact with the holder-side rotation amount restricting portion 14 so that further rotation of the clutch lever 4 is restricted. Accordingly, the actuator 13b is not excessively pushed into the switch body 13a, and the malfunction is not caused by damaging the actuator 13b or the switch body 13a.

  The hydraulic master cylinder 3 assembled with the clutch lever 4 and the starter control switch 13 as described above has a bracket half 27 integrated with the cylinder body 6 and a separate half bracket 28 at the end of the handlebar 2. By gripping the vicinity of the grip 19 and fastening them with bolts 29, the handle bar 2 is attached to the front side of the vehicle body. Further, a hose connected to the clutch is attached to the union hole 9, and a starter operation wiring is connected to the connector 13 c of the starter control switch 13.

  When the clutch lever 4 is gripped with the clutch hydraulic master cylinder device 1 mounted on the handlebar 2, the lever body 20 and the knocker 21 are integrated with the pivot 18 as a fulcrum in the operating direction (grip 19 direction). ), The action arm 21b of the knocker 21 pushes the push rod 5 through the piece member 23, and the push rod 5 pushes the piston 8 toward the bottom of the cylinder hole 7. As a result, the hydraulic fluid in the hydraulic chamber 10 is boosted and supplied to the clutch, and the clutch is disengaged. When the lever body 20 and the grip 19 come into full stroke, the pushing surface 20e of the pushing arm 20d protruding from the bottom surface of the turning base 20a of the lever body 20 pushes the actuator 13b of the starter control switch 13. By moving and pushing into the switch body 13a, the starter control switch 13 makes the starter operable.

  At this time, the contact position of both the rotation amount restricting portions 14 and 20f is provided at a position slightly exceeding the rotation amount in the full stroke state of the clutch lever 4, so that the lever side rotation amount restricting portion 20f is on the holder side. There is no contact with the rotation amount restricting portion 14. As a result, the gripping force of the clutch lever 4 is not transmitted to both the rotation amount restricting portions 14 and 20f, and the lever holder 16 and the pivot 18 are further moved with the contact portions of the both rotation amount restricting portions 14 and 20f as the rotation fulcrum. Since the turning force from the clutch lever 4 is not transmitted to the bracket half 27, the half bracket 28, etc., there is no possibility that they will be deformed or damaged.

  Further, both the rotation amount restricting portions 14 and 20f are usually used in the state where the hydraulic master cylinder 3 is held by hand during maintenance before the clutch hydraulic master cylinder device 1 is attached to the handlebar 2 or the like. It only needs to have strength to receive the turning force when the lever 4 is rotated, and it is sufficient that it can cope with a smaller force than the turning force by the gripping operation when the handlebar is mounted. Therefore, it is not necessary to form a thick wall, and the manufacturing cost is only slightly increased. Further, since a large force does not act on the starter control switch 13 from the clutch lever 4, a commercially available general-purpose micro switch can be used as the starter control switch 13 by screwing it to the cylinder body 6. Thus, the cost required for the starter control switch 13 can be reduced, and the processing for attaching the starter control switch 13 can be reduced, thereby reducing the manufacturing cost. Further, by making the pushing direction of the actuator 13b and the pushing direction of the piston 8 substantially parallel to each other, the positions of the starter control switch 13 and the rotation amount restricting portions 14, 20f can be easily set, and the hydraulic master cylinder 3 The clutch lever 4 and the starter control switch 13 can be shared.

  In the clutch lever provided with the grip allowance adjusting mechanism 22, even when the grip allowance between the grip operating portion 20b of the lever main body 20 and the grip 19 is set to the minimum, the clutch is surely disconnected in the full stroke state. The piston push-in amount in the full stroke state increases as the grip margin increases, but the clutch disengagement state does not change, and the grip margin can be arbitrarily adjusted. There is no problem.

  FIGS. 5 to 7 show a second embodiment in which the operating lever mounting structure of the present invention is applied to a clutch lever of a vertically mounted clutch hydraulic master cylinder device. FIG. 5 shows a clutch hydraulic master. FIG. 6 is a sectional view taken along the line VI-VI in FIG. 7, and FIG. 7 is a front view of the hydraulic master cylinder device for clutch. In the following description, the same components as those in the hydraulic master cylinder device shown in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The hydraulic master cylinder 30 shown in the present embodiment is formed by opening a bottomed cylinder hole 7 in a cylinder body 31 disposed in a direction orthogonal to the handlebar 2 to the front side of the vehicle body. A vertical-type master cylinder in which a piston 8 is inserted, and a bracket half integral with a cylinder body 31 and a separate half-bracket 32 hold the vicinity of the grip 19 at the end of the handlebar. These are fastened with bolts 33 and attached to the front side of the vehicle body of the handlebar 2.

  The cylinder body 31 has a pair of upper and lower lever holders 34 protruding from the front side of the vehicle body with a predetermined gap, and restricts the amount of rotation of the starter control switch 13 and the clutch lever 4 at the lower part of the front side of the vehicle body. A holder side rotation amount restricting portion 35 is provided.

  As in the first embodiment, the clutch lever 4 is a two-piece type divided into a lever body 20 and a knocker 21 that pushes the push rod 5, and a clutch allowance is provided between the lever body 20 and the knocker 21. An adjustment mechanism 22 is provided.

  The lever body 20 has a pushing arm 20g protruding from the lower surface of the rotating base 20a on the front side of the vehicle body. The pushing arm 20g pushes the actuator 13b of the starter control switch 13 on the side surface of the tip. A moving pushing surface 20h is formed. Further, a lever side rotation amount restricting portion 20i that is in contact with the holder side rotation amount restricting portion 35 is formed on the base side surface of the push arm 20g.

  When the hydraulic master cylinder 30 described above is not attached to the handlebar 2 and the clutch lever 4 is rotated, the push rod 5 pushes the piston 8 toward the bottom wall of the cylinder hole 7 and then pushes. The surface 20h pushes the actuator 13b of the starter control switch 13 and pushes it into the switch body 13a. Thereafter, the lever side rotation amount restricting portion 20i of the base of the push arm 20g contacts the holder side rotation amount restricting portion 35. . Accordingly, the actuator 13b is not excessively pushed into the switch body 13a, and the malfunction is not caused by damaging the actuator 13b or the switch body 13a.

  Further, when the clutch lever 4 is gripped with the clutch hydraulic master cylinder device mounted on the handlebar 2, the working arm 21b of the knocker 21 pushes the push rod 5 through the piece member 23, and pushes The rod 5 pushes the piston 8 toward the bottom of the cylinder hole 7. As a result, the hydraulic fluid in the hydraulic chamber 10 is boosted and supplied to the clutch, and the clutch is disengaged. When the full stroke state where the lever body 20 and the grip 19 come into contact with each other, the pushing surface 20h pushes the actuator 13b of the starter control switch 13 into the switch body 13a, so that the starter control switch 13 is turned on. In this case, the lever side rotation amount restricting portion 20 i does not contact the holder side rotation amount restricting portion 35.

The present invention is not limited to the above-described embodiments, and the lever-side rotation amount restricting portion that contacts the holder-side rotation amount restricting portion and restricts the rotation of the clutch lever is formed separately from the push arm. You can also. In addition, it can also be applied to the clutch lever that does not have a substitute adjustment mechanism that Ri grip. It is also possible to apply a similar structure to the brake lever.

It is II sectional drawing of FIG. It is a principal part rear view of the hydraulic master cylinder device for clutches which shows the 1st example of the present invention. It is a principal part sectional front view of the hydraulic master cylinder device for clutch similarly. It is also a front view. It is a principal part rear view of the hydraulic master cylinder apparatus for clutches which shows the 2nd form example of this invention. It is VI-VI sectional drawing of FIG. 7 similarly. It is a front view of a hydraulic master cylinder device for clutches.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Hydraulic master cylinder apparatus for clutches, 2 ... Handlebar, 3,30 ... Hydraulic master cylinder, 4 ... Clutch lever, 5 ... Push rod, 6, 31 ... Cylinder body, 7 ... Cylinder hole, 8 ... Piston, DESCRIPTION OF SYMBOLS 13 ... Starter control switch, 13a ... Switch body, 13b ... Actuator, 13c ... Connector, 13d ... Screw fastening part, 14, 35 ... Holder side rotation amount regulation part, 15 ... Screw, 16, 34 ... Lever holder, 17 ... Collar, 18 ... Pivot, 19 ... Grip, 20 ... Lever body, 20a ... Rotating base, 20b ... Grip operation part, 20c ... Recess, 20d, 20g ... Push arm, 20e, 20h ... Push surface, 20f, 20i ... Lever-side rotation amount restricting portion, 21 ... Knocker, 21a ... Rotating base, 21b ... Working arm, 21c ... Hydraulic master cylinder side stopper piece, 21d ... Lever Side stopper piece, 21e ... Ajasutokamu abutment surface, 21f ... boss hole, 22 ... grip allowance adjusting mechanism, 23 ... frame member

Claims (2)

When the operating lever is pivotally supported by a lever holder protruding from the cylinder body of the hydraulic master cylinder device attached to the handle bar, and the cylinder body is provided with a starter control switch, and the cylinder body is mounted on the handle bar Further, in the mounting structure of the operation lever in the bar handle vehicle in which the operating member of the starter control switch is pushed by the push arm provided on the operation lever in a full stroke state where the operation lever is in contact with the handle bar, the starter control switch is screwed by screws to the lower surface of the cylinder body, the rotation amount of the operation lever relative to the lever holder in the non-attached state to the handlebar of the cylinder body and mounting the cylinder body to the handle bar just a rotation amount of the full stroke state when In Beyond position, the pivot amount regulating portion for regulating the rotation of the operation lever relative to the lever holder abut each other, the operating lever in a bar-handle vehicle, characterized in that provided respectively between the lever holder and the operating lever Mounting structure. Pushing direction of the working element of the starter control switch is mounted in the hydraulic master operating lever in a bar handle vehicle according to claim 1, characterized in that substantially parallel to the piston of the pressing direction of the cylinder device Construction.

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