JPH09272482A - Operation lever for vehicle with bar handle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the vertical backlash of a lever main body, which is caused by a clearance between leave holders, and to improve operation feeling by turnably pivoting a lever body and the turning base of a knocker to lever holders using a pivot. SOLUTION: A lever body 11 is provided with a turning base 11b which is formed as a bifurcate arm having an upper arm 11d and a lower arm 11e opposed each other, and the base 12b of a knocker 12 is interposed between the arms 11d and 11e. Further, the upper and the lower arms 11d, 11e are interposed between lever holders 4b and 4c, so that the bases 11b and 12b of the lever body 11 and knocker 12 are turnably pivoted to lever holders 4b, 4c using a pivot 17. The vertical backlash of the lever body 11 is supressed to such a small amount as caused by only a clearance between the lever holders 4b, 4c and the base 11b of a lever body 11, providing an improved operation feeling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake or a clutch of a bar handle vehicle such as a motorcycle, a motorcycle having a steering handle bar at a front portion of a vehicle body, a three- or four-wheel buggy vehicle, or the like by hydraulic pressure. The present invention relates to an operating lever of a hydraulic master cylinder that operates, and more particularly, to a two-piece type bar handle vehicle operating lever in which the operating lever is divided into a lever body and a knocker.

[0002]

2. Description of the Related Art As a hydraulic master cylinder for a bar-handle vehicle in which a brake or a clutch of a motorcycle or the like is hydraulically operated, for example, an operation lever as disclosed in Japanese Patent Publication No. 63-2836 is used. This operating lever is a two-piece type that is divided into a lever body that performs a grip operation and a knocker that pushes the piston of the hydraulic master cylinder when the lever body is pushed. The knocker and the lever body are plate-shaped. The two rotation bases are vertically stacked and inserted between a pair of upper and lower lever holders extended in the hydraulic master cylinder, and both rotation bases are pivotally supported by the lever holders by a pivot. There is.

[0003]

However, in the structure in which the lever main body and the pivoting base of the knocker are superposed and pivotally supported between the lever holders, the rotation between the upper and lower lever holders is increased. In order to allow the moving base to rotate well between the lever holders, the thickness of both rotating bases is set to a clearance that allows for the dimensional tolerances of the lever holder and the rotating base. The long lever body has a problem that vertical play is amplified and appears. Therefore, an object of the present invention is to provide a bar handle vehicle operation lever capable of improving the operation feeling by suppressing the vertical rattling of the lever body due to the clearance between the lever holders as much as possible.

[0004]

According to the present invention, in accordance with the above object, an operating lever attached to a pair of upper and lower lever holders extending in a hydraulic master cylinder is disposed in front of a grip at an end of a handlebar. And a knocker arranged so that the working arm faces the rear end of the piston inserted in the cylinder hole of the hydraulic master cylinder,
The knocker is rotated by gripping the lever body,
In a bar handle vehicle operating lever for pushing up the piston by the working arm to pressurize the hydraulic fluid inside the hydraulic master cylinder, the pivot base of the lever body is formed into a pair of upper and lower bifurcated arms, and The pivot base of the knocker is sandwiched between the bifurcated arms, the bifurcated arm is inserted between the lever holders, and the pivot base of the lever body and the knocker is pivotally supported on the lever holder using a pivot. It is characterized by having done.

According to this structure, the rotation base of the knocker inserted into the bifurcated arm of the rotation base of the lever main body has no direct relation with the lever holder, and the lever main body is directly connected between the lever holders. Since only a clear clearance is set, the factor that causes the lever body to rattle vertically is
There is only the clearance between the lever holder and the lever body.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention applied to a front brake of a bar handle vehicle will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention, in which a handle bar 1 for steering front wheels at a front portion of a vehicle having a bar handle vehicle has a front brake liquid at a position inside an accelerator grip 2 at a right end. A pressure master cylinder device 3 is attached. This hydraulic master cylinder device 3 is
Attach the handlebar 1 to the body mounting arm 4a of the cylinder body 4.
And a bracket 5, and a hydraulic master cylinder 6 bolted to the front side of the vehicle body of the handlebar 1, and a front brake operation lever 7 attached to the lever holders 4b and 4c of the cylinder body 4. It consists of The lever holders 4b and 4c are provided so as to project vertically from the cylinder body 4, and between the lever holders 4b and 4c, the upper arm 11d and the lower arm 11e of the rotation base 11b of the lever main body 11, which will be described later, are provided. In the outer dimension, the lever holder 4b,
4c and the upper and lower arms 11d and 11e are set to have a clearance in consideration of a clearance due to a dimensional tolerance.

A bottomed cylinder hole 8 is formed in the cylinder body 4 along the handlebar 1.
The piston 9 is inserted in the opening side of the
Is always elastically urged toward the opening by a return spring (not shown) that is compressed in the hydraulic chamber at the bottom of the cylinder hole, and its retract limit is attached to the opening end of the cylinder hole 8. Supported by.

The operating lever 7 is divided into a lever body 11 arranged in front of the accelerator grip 2 and a knocker 12 arranged so that the working arm 12a is brought into contact with the rear end of the piston 9 of the cylinder hole 8. This is a two-piece type, and the working arm 12a of the knocker 12 and the working arm facing portion 1 of the lever body 11
A grip allowance adjusting mechanism 13 is provided between the grip 1c and the 1c.

The lever body 11 has a grip portion 11a, which is gripped by a rider, and is formed by a slightly vertically long rod-shaped body which is gently curved substantially along the front side of the accelerator grip 2. The grip portion 11a is opposed to the working arm following the grip portion 11a. 11c and rotating base 11
b is formed of a plate-shaped body that is thicker than the grip portion 11a and the knocker 12. The rotating base 11b is the upper arm 11 described above.
d and the lower arm 11e are formed in a bifurcated arm in which they are vertically opposed to each other, and the insertion holes 11f and 11 are formed in both arms 11d and 11e.
f is coaxially drilled.

In the working arm facing portion 11c, a vertical pin hole 11g is provided in the upper and lower surfaces and a side surface on the working arm 12a side, and an adjusting pin 14 is mounted in the pin hole 11g. On the upper surface of the working arm facing portion 11c, a triangular index 11h used for adjusting the grip allowance is provided.
It is engraved toward the countersink hole 11j. Pin hole 11
g is a clutch accommodating portion 11i formed in the working arm facing portion 11c at a predetermined depth in the vertical direction, and the clutch accommodating portion 11i.
The above-mentioned counterbore hole 11j formed by hollowing the upper surface of the working arm facing portion 11c above i and the clutch housing portion 11 as well.
The guide receiving portion 11k is provided below the working arm facing portion 11c so as to open to the lower surface of the working arm facing portion 11c. From the top of the working arm facing portion 11c, the counterbore hole 11j, the clutch accommodating portion 11i, and the guide receiving portion. The inner part on the reaction arm side is formed in a semicircular shape having a large diameter, a medium diameter, and a small diameter in the order of the portion 11k, and each is open to the side of the working arm 12a.

The knocker 12 has the working arm 12a.
A rotary base portion 12b held by the rotary base portion 11a of the lever body 11, and the cylinder body 4 from the rotary base portion 12b.
And a stopper piece 12c extending toward the front side of the vehicle body. Working arm 1 disposed between cylinder hole 8 of hydraulic master cylinder 6 and working arm facing portion 11c of lever body 11.
A projecting piece 12e having a flat cam contact surface 12d at its tip is provided on the side surface of 2a on the working arm facing portion 11c side. Further, the rotation base portion 12b is formed in a plate shape having a thickness that can be inserted between the upper arm 11d and the lower arm 11e of the rotation base portion 11b of the lever body 11, and the insertion hole 1 is formed in the center portion.
2f is formed through.

The grip allowance adjusting mechanism 13 comprises a pin hole 11g and an index 11h of the lever body 11, a cam contact surface 12d of the knocker 12, and an adjustment pin 14 assembled in the pin hole 11g of the lever body 11. To be done. The adjustment pin 14 includes a cam clutch portion 14a, a rotation guide portion 14b continuous to the upper side of the cam clutch portion 14a and an operation dial 14c, and a rotation guide portion 14d continuous to the lower side of the cam clutch portion 14a and a detachment. It is composed of a stopper 14e, and is integrally formed by forging, shaving, or casting one shaft member.

The cam clutch portion 14 of the adjusting pin 14
a is a hexagonal shape slightly smaller than a circle having the same radius as the middle-diameter semicircle of the clutch housing portion 11i of the pin hole 11b, and the six cam surfaces equally divided on the outer circumference are the central axes of the adjusting pins 14. Are formed in deformed hexagonal cross sections arranged at different distances from each other, and the upper rotation guide portion 14b has the same diameter as a circle having the same radius as the middle diameter semicircle of the inner portion of the clutch housing portion 11i of the pin hole 11b. Has been formed. Adjust pin 1
The operation dial 14c of No. 4 has the counterbore 1 of the pin hole 11g.
It is formed to have a diameter slightly smaller than a circle having the same radius as the large-diameter semi-circle in the inner part of 1j, and a number indicating the turning position of the adjust pin 14 is provided on the upper surface of the operation dial 14c.
It is provided corresponding to the six cam surfaces of 4a. The lower rotation guide portion 14d of the adjustment pin 14 has the pin hole 1
It is formed to have the same diameter as the small-diameter semicircle in the inner part of the guide receiving portion 11k of 1g, and the retaining portion 14e at the lower end is larger than the small-diameter semicircle in the inner part of the guide receiving portion 11k. It is formed to a diameter.

The adjusting pin 14 is used for the lever body 1.
1 is inserted into the pin hole 11g from the opening on the side of the working arm 12a while the retaining portion 14e at the lower end is projected to the lower surface of the working arm facing portion 11c, and the cam clutch portion 14a and the upper rotation guide portion 14b are inserted. The operation dial 14c is located at the back of the clutch housing 11i, the operation dial 14c is located at the back of the counterbore 11j, and the lower rotation guide 14d is provided at the guide receiving portion 11.
It is housed in the inner part of k. Adjust pin 14
Holds the upper and lower operation guides 14b and 14d between the upper and lower operation dials 14c and the retaining portion 14e while sandwiching the upper surface of the counterbore 11j and the lower surface of the working arm facing portion 11c. And lower guide receiving part 1
Stored in the semi-circular part at the back of 1k, the working arm facing part 11c
It is rotatably supported by the pin hole 11g.

Before the lever body 11 and the knocker 12 are mounted on the lever holders 4b and 4c, the rotation base portion 12b of the knocker 12 is provided between the upper arm 11d and the lower arm 11e of the rotation base portion 11b of the lever body 11. Insert and rotate both bases 11
The through holes 11f, 11f and 12f of the b and 12b are aligned and the collar 15 is inserted, and either or both of the upper and lower ends of the collar 15 are inserted into the through hole 11 of the lever body 11.
By lightly pushing and spreading to the f and 11f sides, the operation lever 7 is integrally assembled in advance. Adjust pin 1
4 is attached to the pin hole 11g when the lever body 11 and the knocker 12 are assembled, and the lever body 11 and the knocker 1 are attached.
The compression coil spring 16 is contracted between the opposing pieces 11m and 12g of the two rotating bases 11b and 12b.

In this way, the lever body 11 and the knocker 12 which have been integrated in advance are biased in opposite directions with the collar 15 as the fulcrum by the elastic force of the coil spring 16, so that the protrusion 12e of the knocker 12 is pushed. , Is pushed toward the cam clutch portion 14a of the adjust pin 14 from the opening of the pin hole 11g on the side of the working arm 12a. Pin hole 11g
One of the cam surfaces of the cam clutch portion 14a of the adjust pin 14 inside is oriented in advance toward the opening on the working arm side of the pin hole 11g, and the cam contact surface 12 at the tip of the projecting piece 12e.
d contacts this cam surface. As a result, the adjustment pin 14 is restricted from rotating in the pin hole 11g, and at the same time, the pin hole 11g is prevented from coming off from the working arm side opening.

The operation lever 7 includes a rotation base 11b of the lever body 11 and lever holders 4b, 4 of the cylinder body 4.
c, and the pivot 17 is inserted into the pin hole 4d of the upper lever holder 4b and the collar 15 so that the pivot 1
The male screw 17a of No. 7 to the female screw hole 4e of the lower lever holder 4c.
Then, a nut 18 is screwed onto a male screw 17a projecting from the lower surface of the lower lever holder 4c, and is rotatably supported around the pivot 17.

In the operating lever 7 mounted on the lever holders 4b and 4c, the working arm 12a of the knocker 12 is brought into contact with the rear end of the piston 9, so that the knocker 12 is moved to the lever main body 1.
2 is urged counterclockwise in FIG. 2 and FIG. 3 about the pivot 17 as a fulcrum, and its retreat limit is restricted by the contact between the stopper piece 12c and the front wall of the cylinder body 4 and the lever body. A predetermined grip allowance is set between the grip portion 11 a of 11 and the accelerator grip 2.

The cam clutch portion 14 of the adjusting pin 14
a and the cam contact surface 12d of the knocker 12 are always in contact with each other, and when the rider grips and operates the lever main body 11 during braking, the lever main body 11 and the knocker 12 are integrated, and the pivot 17 serves as a fulcrum. Rotating clockwise in FIGS. 1, 2 and 3, the working arm 12a of the knocker 12 pushes the piston 9 toward the bottom of the cylinder hole 8 to pressurize the hydraulic fluid in the hydraulic chamber, Liquid is supplied to the front brake to brake the front wheels.

When adjusting the grip allowance between the lever body 11 and the accelerator grip 2, the lever body 11 is
2 against the biasing force of the coil spring 16 from the non-actuated position shown by the solid line in FIG. 2 to the imaginary line position, and the cam clutch portion 14a of the adjust pin 14 and the cam contact surface 12d of the knocker 12 come into contact with each other. Is temporarily released. Next, while maintaining this state, the operation dial 14c is operated to rotate the adjustment pin 14 to align a desired number on the operation dial 14c with the index 11h, whereby the cam clutch unit 1
The other cam surface of 4a is directed toward the working arm side opening of the pin hole 11g. Then, the rotation of the lever body 11 in the anti-grip direction is released, the lever body 11 is rotated in the grip direction by the urging force of the coil spring 16, and the other cam surface of the adjust pin 14 is brought into contact with the cam of the knocker 12. By making contact with the surface 12d, different grip allowances are set between the lever body 11 and the accelerator grip 2.

In this embodiment, the rotating base 1 of the lever body 11 is used.
1b is formed as a bifurcated arm in which an upper arm 11d and a lower arm 11e are opposed to each other, and the rotation base 12b of the knocker 12 is sandwiched between the upper and lower arms 11d and 11e of the rotation base 11b, and the upper and lower arms are further 11d and 11e are inserted between the lever holders 4b and 4c to rotate the lever body 11 and the knocking base 12 of the knocker 12.
The lever holders 4b and 4b are pivotally supported on the lever holders 4b and 4c by using the pivots 17.
Between c, the upper and lower arms 11d and 11e of the rotating base 11b.
Outer dimensions of both arms 11d and 11e and lever holder 4
Only the clearance that allows for the dimensional tolerances of b and 4c is set, and the rotation base 12b of the knocker 12 and the lever body 1 are set.
The lever holders 4b and 4c and the rotation base portion 12b of the knocker 12 are not directly related to each other, regardless of the gap between the rotation base portion 11b and 11d and 11e.
Therefore, the clearance for holding the knocker 12 is excluded from the factor of rattling the lever body 11 in the vertical direction, so that the rattling of the lever body 11 in the vertical direction is caused by the lever holders 4b and 4c and the lever body 12. It is possible to obtain a good operation feeling for the operation lever 7 by suppressing the amount to a slight amount due to only the clearance between the rotating bases 12b.

Further, in this embodiment, the grip allowance adjusting mechanism 13 is disposed between the lever main body 11 and the knocker 12, and the basic structure of the grip allowance adjusting mechanism 13 is the lever. Pin hole 11g of main body 11 and knocker 12
Since only a small number of parts including the cam contact surface 12d and the adjusting pin 14 are used, the number of parts is small, and the manufacture and assembly are easy, and the cost can be reduced. In particular, the adjustment pin 14 need only be installed by inserting it into the pin hole 11g in a one-touch manner. In the vertical direction, the upper and lower operation dials 14c and the retaining portion 14e are provided on the upper surface of the counterbore hole 11j and the lower surface of the working arm facing portion 11c. To prevent the pin hole 11g from opening on the working arm side.
The cam contact surface 12d at the tip of the protruding piece 12e abuts against any one of the cam surfaces a to prevent the cam pin from coming off, so that the adjust pin 14 does not require a dedicated come-off prevention member.

Next, the second to fifth embodiments of the present invention will be described with reference to FIG.
This will be described with reference to FIG. The same components as those in the above-described first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. 5 to 7 show a second embodiment of the present invention, in which the operating lever 7 of this embodiment has a grip allowance adjusting mechanism 20.
The pin hole 11n, the adjustment pin 21, and the index 12h are different from those of the above-described first embodiment, and the other configurations are substantially the same as those of the first embodiment.

The pin hole 11n formed in the working arm facing portion 11c of the lever body 11 is formed in the intermediate portion of the working arm facing portion 11c with a predetermined depth in the vertical direction.
o, a guide receiving portion 11p that is continuous to the upper side of the clutch housing portion 11o, and a counterbore hole 11q that is shallowly hollowed from the upper surface of the working arm facing portion 11c to the guide receiving portion 11p. Is a bottomed hole that is closed by a bottom wall 11r.
In the order of q, the guide receiving portion 11p, and the clutch accommodating portion 11o, the rear portion on the reaction arm side is formed in a semicircular shape having a large diameter, a small diameter, and a medium diameter, and each of them opens to the working arm 12a side.

The adjusting pin 21 assembled in the pin hole 11n includes an operation dial 21a housed in the counterbore hole 11q, an upper rotation guide part 21b housed in the guide receiving part 11p, and a clutch housing part 11o. Cam clutch portion 21c and lower rotation guide portion 21d housed in
It consists of

Operation dial 21a of the adjusting pin 21
Is formed to have a diameter slightly smaller than a circle having the same radius as the large-diameter semicircle inside the counterbore 11q of the pin hole 11n, and a number aligned with the index 12h of the knocker 12 on the upper surface of the operation dial 21a. Are provided corresponding to the six cam surfaces of the cam clutch portion 21c. The upper rotation guide portion 21b is formed to have the same diameter as a circle having the same radius as the small-diameter semicircle inside the guide receiving portion 11p of the pin hole 11n, and the lower rotation guide portion 21d is formed to have the same diameter as the pin hole 11n. Clutch housing 1
It is formed to have the same diameter as the circle having the same radius as the medium-diameter semicircle in the inner part of 1o. The cam clutch portion 21c is slightly smaller than a circle having the same radius as the middle-diameter semicircle of the clutch housing portion 11o of the pin hole 11n, and the six cam surfaces on the outer circumference are unequal from the central axis of the adjust pin 21. It is formed into a deformed hexagonal cross section arranged at a distance.

The vertical length of the clutch accommodating portion 11o of the pin hole 11n is the cam clutch portion 21c + of the adjusting pin 21.
It is slightly longer than the lower rotation guide portion 21d, and the clutch housing portion 11o + the guide receiving portion 11p is set to have substantially the same vertical length as the cam clutch portion 21c + the upper rotation guide portion 21b + the lower rotation guide portion 21d. The adjusting pin 21 is inserted from the opening on the side of the working arm 12a while the lower turning guide portion 21d is placed on the bottom wall 11r of the pin hole 11n, and the cam clutch portion 21c and the lower turning guide are inserted. The part 21d is housed in the inner part of the clutch housing part 11o, the operation dial 21a is housed in the inner part of the counterbore 11q, and the upper rotation guide part 21b is housed in the inner part of the guide receiving part 11p.

In this way, the adjusting pin 21 inserted into the pin hole 11n has a small-diameter guide receiving portion 11p sandwiched between the operation dial 21a and the cam clutch portion 21c and the lower side of the clutch receiving portion 11o. Bottom wall 11 that covers
When the lever body 11 of the operating lever 7 and the knocker 12 are pivotally supported by the pivot 17 so as to be prevented from coming off in the vertical direction by r, the protrusion 12e of the knocker 12 is
It is pushed toward the cam clutch portion 21c of the adjusting pin 21 from the opening of the pin hole 11n on the side of the working arm 12a, so that any one cam surface of the cam clutch portion 21c becomes
The protrusion pin 12e contacts the cam contact surface 12d to restrict the rotation of the adjust pin 21, and at the same time, prevents the adjust pin 21 from coming off from the pin hole 11n.

On the upper surface of the projection 12e of the knocker 12, there is provided an index 12h having an arrow embossed toward the cam contact surface 12d, and the index 12h is provided with an operation dial 21a.
By aligning any one of the numbers of the above, any one cam surface of the cam clutch portion 21c corresponding to the number of the operation dial 21a becomes the cam contact surface 12d of the projecting piece 12e.
And a desired grip allowance is set between the grip portion 11a of the lever body 11 and the accelerator grip 2 (see FIG. 2 of the first embodiment).

The grip allowance adjusting mechanism 3 shown in the third embodiment of FIG.
0 is a rotation guide portion 31b between the operation dial 31a of the adjustment pin 31 and the cam clutch portion 31c, and a rotation guide portion 31d connected to the lower side of the cam clutch portion 31c.
Are formed to have substantially the same diameter, which is smaller than that of the cam clutch portion 31c.

In the pin hole 11s formed in the working arm facing portion 11c of the lever body 11, a counterbore hole 11q for the operation dial and a guide receiving portion 11p for the upper rotation guide portion are provided.
Are formed in the same shape as the second embodiment, respectively, and are provided with a clutch housing portion 11t and a guide receiving portion 11u for exclusively storing the cam clutch portion 31c and the lower rotation guide portion 31d, respectively. The bottom wall 11r covers the lower side of the guide receiving portion 11u. The clutch housing portion 11t is
The inner part on the reaction arm side is formed in a semicircular shape having a diameter larger than that of the cam clutch part 31c, and the lower guide receiving part 11u.
Similarly, the inner part on the side of the reaction arm is made into a semi-circular shape having the same shape as the rotation guide part 31d, and each is formed on the action arm 12a.
It opens to the side.

The adjusting pin 31 is inserted into the pin hole 11s through the opening on the side of the working arm 12a, and the operating dial 31
a, the cam clutch portion 31c, and the rotation guide portions 31b, 3
1d is housed in each of the dedicated counterbore holes 11q, the clutch housing portion 11t, and the guide receiving portions 11p and 11u.
The adjusting pin 31 mounted in the pin hole 11s has a small-diameter guide receiving portion 11p and a bottom wall 11r which are vertically sandwiched between the operation dial 31a and the cam clutch portion 31c.
And the opening of the pin hole 11s on the side of the working arm 12a is prevented by the protruding piece 12e of the knocker 12, and the rotation when adjusting the grip allowance is performed by the rotation guide portions 31b, 3b.
It is guided by guide receiving portions 11p and 11u that support 1d.

FIGS. 9 and 10 are fourth and fifth examples of the present invention showing modifications of the second example described with reference to FIGS. 5 to 7. The grip allowance adjusting mechanism of each example is 40, The reference numeral 50 has the same configuration as that of the second embodiment except that the adjusting pins 41 and 51 are formed of two pieces in the upper and lower portions.

Among them, the adjusting pin 41 of the fourth embodiment shown in FIG. 9 has an upper piece 41a, an operating dial 21
a and upper rotation guide portion 21b and press-fitting protrusion 21e
Are provided, and the lower piece 41b is provided with a cam clutch portion 21c, a lower rotation guide portion 21d, and a press-fitting concave portion 21f. Both pieces 41a, 41b are provided.
Is integrally formed as an adjust pin 41 by press-fitting the protrusion 21e into the recess 21f.

Further, in the adjust pin 51 of the fifth embodiment shown in FIG. 10, the upper piece 51a itself has the operation dial 21.
a, and a recess 2 for press-fitting in the center of the lower surface of the upper piece 51a.
1 g is provided. The lower piece 51b is provided with a press-fitting protrusion 21h, a rotation guide portion 21b, a cam clutch portion 21c, and a rotation guide portion 21d from the upper side. The both pieces 51a and 51b are recessed in the protrusion 21h. 21
It is pressed into g and integrated as the adjustment pin 51.

The grip allowance adjusting mechanism 20 of the second to fifth embodiments,
Reference numerals 30, 40 and 50 are grip allowance adjusting mechanisms 13 of the first embodiment.
The pin holes 11n and 11s do not penetrate to the lower side of the working arm facing portion 11c, and the pin holes 11n and 11s
Since the bottom wall 11r that covers the lower surface of 1s is integrally continuous as the lower meat portion of the working arm facing portion 11c, compared to the structure of the first embodiment in which the lower side of the pin hole is cut out, Since the adjusting pins 21, 31, 41, 51 do not project to the lower surface of the lever main body 11, a high rigidity can be provided, and the appearance is beautiful and the productability can be improved.

The adjusting pin used in the grip allowance adjusting mechanism may be either an integral type or a split type consisting of two or more pieces, as shown in the first to fifth embodiments. It can be manufactured by either forging, shaving or casting.

[0038]

According to the bar-handle vehicle operation lever of the present invention, the rotation base of the lever body that constitutes the operation lever together with the knocker is formed into a pair of upper and lower bifurcated arms, and the knocker pivots between the bifurcated arms. Since the forked arm is inserted between the lever holders by sandwiching the base portion and the pivotal base portion of the lever body and the knocker is pivotally supported on the lever holder by a pivot, the lever body and the knocker can be rotated. Even if there is a large clearance between the moving bases, the only factor that causes the lever body to rattle in the vertical direction is the clearance between the lever holder and the pivot base of the lever body. The sticking is suppressed very slightly, and a good operation feeling can be obtained for the operation lever.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an operating lever showing a first embodiment of the present invention.

FIG. 2 is a plan view showing a first embodiment of the present invention in which an operating lever is attached to a handlebar.

FIG. 3 is an enlarged plan view of an essential part of FIG. 1 showing a first embodiment of the present invention.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3 showing a first embodiment of the present invention.

FIG. 5 is an exploded perspective view of an operation lever showing a second embodiment of the present invention.

FIG. 6 is a plan view in which an operating lever showing a second embodiment of the present invention is attached to a handlebar.

FIG. 7 is a sectional view taken along the line VII-VII of FIG. 6, showing a second embodiment of the present invention;

FIG. 8 is a sectional view of an essential part of an operating lever showing a third embodiment of the present invention.

FIG. 9 is a sectional view of an essential part of an operation lever showing a fourth embodiment of the present invention.

FIG. 10 is a sectional view of an essential part of an operating lever showing a fifth embodiment of the present invention.

[Explanation of symbols]

1 ... Handlebar 2 ... Accelerator grip 3 ... Hydraulic master cylinder device 4 ... Cylinder body 4a ... Body mounting arm 4b, 4c ... Lever holder 4d ... Pin hole 4e ... Female screw hole 5 ... Bracket 6 ... Hydraulic master cylinder 7 ... Operation lever 9 ... Piston 11 ... Lever body 11a ... Grip part 11b ... Rotation base part 11c ... Working arm facing part 11d ... Upper arm 11e ... Lower arm 11f ... Insertion hole 11g, 11n, 11s ... Pin hole 11h ... Index 11i ... Clutch accommodation Part 11j ... Counterbore hole 11k ... Guide receiving part 11o ... Clutch accommodating part 11p ... Guide receiving part 11q ... Counterbore hole 11r ... Bottom wall 12 ... Knocker 12a ... Working arm 12b ... Rotating base part 12c ... Stopper piece 12d ... Cam contact surface 12e ... Projection piece 12f ... Insertion hole 13, 20, 30, 40, 50 ... Gripping allowance adjusting mechanism 14, 2 , 31, 41, 51 ... Adjust pin 14a, 21c, 31c ... Cam clutch part 14b, 14d, 21b, 21d, 31b, 31d ... Rotation guide part 14c, 21a, 31a ... Operation dial 14e ... Fall prevention part 15 ... Color 17 ... Pivot 18 ... Nuts 21e, 21h ... Press-fitting protrusions 21f, 21g ... Press-fitting recesses 41a, 51a ... Upper piece 41b, 51b ... Lower piece

Claims (1)

[Claims] 1. A lever main body, which is provided in front of a grip at an end portion of a handlebar, and an operating arm, wherein an operating lever attached to a pair of upper and lower lever holders extended in a hydraulic master cylinder is provided with the working master. It is divided into a knocker that is arranged facing the rear end of the piston inserted in the cylinder hole of the cylinder, and the knocker is rotated by the grip operation of the lever body, and the piston is pushed by the working arm. In a bar-handle vehicle operating lever that moves to increase the hydraulic fluid in a hydraulic master cylinder, the pivot base of the lever body is formed into a pair of upper and lower bifurcated arms, and the knocker is rotated between the bifurcated arms. The barch is characterized in that the movable base portion is sandwiched, the bifurcated arm is inserted between the lever holders, and the rotation base portion of the lever main body and the knocker is pivotally supported on the lever holder by using a pivot. Control lever for vehicle.