JP2000043779A - Pedal position switching device for two-wheeler or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pedal position switching device for a two-wheeler or the like, which is capable of positioning both pedals in the oblique front lower side of a rotary-driving shaft when both feet are placed without using the pedals. SOLUTION: The base end of a connecting rod 13R for supporting one pedal 14 is fixed to a rotary-driving shaft 11, and the base end of a connecting rod 13L for supporting the other pedal is attached to the rotary-driving shaft so as to be adjusted for rotation. To fix the rotary-driving shaft such that the connecting rod 13R takes the angle position of 300 deg. in the oblique front side of the rotary-driving shaft, an operation lever mechanism 35 is operated to engage a lock pin 45 in the recess 16 of an engaging plate 12. In connection with this, a lever 44 is operated on a cylindrical clutch 15 fitted in the rotary- driving shaft so as to be slid only in an axial direction, and the clutch 15 is separated from the connecting rod 13L. Then, the clutch 15 is disengaged from the connecting rod 13L, and rotated and fixed in the same angle position as that of the connecting rod 13R by the operation of a return spring 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a motorbike,
In connection with pedals of motorcycles such as bicycles, particularly when pedaling manually and when driving on a motor or going down a slope, when pedaling is not required,
The present invention relates to a switchable pedal position switching device for a motorcycle or the like.

[0002]

2. Description of the Related Art A conventional motorcycle pedal mechanism is shown in FIG.
1 is known. This petal mechanism 1
Are connected to the rotary drive shaft 2 and 180 ° at both ends of the rotary drive shaft 2.
Connecting rods 3 projecting in opposite directions at an angle of ゜
And a pedal section 4 pivotally attached to the ends of these connecting rods 3. A sprocket 5 is fixed to the rotary drive shaft 2, and a chain 6 is wound around the sprocket 5. When the pedals 4 on both sides of the rotary drive shaft 2 are rowed with both feet, the sprocket 5 rotates, and the rear wheels of the motorcycle are driven via the chain 6 so that the motorcycle runs.

[0003]

By the way, when the user rides on a motorcycle and does not pedal the pedals 4 with both feet, the feet are placed on a straight line which is approximately 30 ° obliquely forward and downward with respect to a vertical line passing through the saddle or the rotary drive shaft. The most comfortable position is obtained by placing the pedal on the pedal in the position. However, in the conventional pedal mechanism 1 for a motorcycle, the two left and right pedals 4 are attached at an angle of 180 ° in opposite directions.
Even if one of the pedals 4 is placed on a straight line at an angle of about 30 ° diagonally forward and downward with respect to a vertical line passing through the saddle, the other pedal 4 is located above and behind the drive shaft 2 so that the pedal 4 has a comfortable posture. Can not.

[0004] In view of this, the present invention provides a motorized bicycle,
When running on a two-wheeled vehicle such as a bicycle by pedaling with both feet, the pair of pedals are at opposite angles to each other at an angle of 180 ° with respect to the drive shaft as usual.
When it is not necessary to travel with a pedal mechanism, there is provided a pedal position switching device such as a two-wheeled vehicle capable of placing both pedals in a straight line at an angle of approximately 30 ° below the vertical line passing through the saddle or the rotary drive shaft. It was made for the purpose of providing.

[0005]

In order to solve the above-mentioned problems of the prior art, in a pedal position switching device for a motorcycle or the like according to the present invention, a first connecting rod at one end of a rotary drive shaft is integrated with the rotary drive shaft. Is fixed to the rotary drive shaft so that it rotates
A second connecting rod at the other end of the rotary drive shaft is attached to the rotary drive shaft so as to be rotatable relative to the rotary drive shaft, and the first connecting rod is fixed at a predetermined angular position around the rotary drive shaft. Means for locking the rotary drive shaft is provided, and the second connecting rod is provided at a normal angular position around the rotary drive shaft with respect to the first connecting rod at an angle of 180 °;
An operating mechanism is provided which enables the rods to be selectively positioned at equal angular positions around the rotary drive shaft with respect to the continuous rod.

The means for locking the rotation drive shaft includes an engagement member that rotates integrally with the rotation drive shaft, an engagement portion provided on the engagement member, and a position where the engagement portion is positioned at a predetermined rotation angle. And a lock member provided to engage with the lock member at a certain time.

The engagement member may be an engagement plate, the engagement portion may be a recess provided in the engagement plate, and the lock member may be a lock pin.

[0008] Preferably, the means for locking the rotary drive shaft and the operating mechanism are linked to each other.

[0009] Further, in connection with the means for locking the rotary drive shaft locking the rotary drive shaft, the operating mechanism rotates the second connecting rod relative to the first connecting rod. A normal angular position about 180 ° about the axis;
It is preferable that the connecting rod can be selectively positioned at an equiangular position at the same angle around the rotary drive shaft.

[0010] Also, in connection with the means for locking the rotary drive shaft locking the rotary drive shaft, the second connecting rod is moved relative to the first connecting rod by 18 degrees around the rotary drive shaft.
It is preferable to provide a device for automatically biasing the first connecting rod from the normal angle position forming 0 ° to the equiangular position forming the same angle around the rotary drive shaft.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pedal position switching device (hereinafter, referred to as a switching device) for a motorcycle or the like according to the present invention will be described below with reference to FIGS.

As shown in FIG. 3 and FIG.
Numeral 0 includes a rotary drive shaft (hereinafter referred to as a drive shaft) 11, connecting rods 13 on both sides thereof, and a pedal 14 at the end of each connecting rod. The engagement plate 12 is provided in a protruding manner, and a clutch 15 as an engagement means is provided to face the engagement plate 12. A drive sprocket 5 of a chain is attached to the drive shaft 11 in a conventional manner.

As shown in FIG. 5, the drive shaft 11 has the disk-shaped engaging plate 12 formed slightly closer to one side than the center. U is located at one location on the circumference of the engagement plate 12.
A concave portion 16 (FIG. 6) cut out in a letter shape is formed.
As shown in FIG. 3 and FIG. 4, the pair of connecting rods 13 usually protrude from both ends of the drive shaft 11 in the radial direction of the drive shaft in directions different from each other by 180 °. As shown in FIG. 3, the connecting rod 13 moves in the traveling direction (arrow A) of a motorcycle or the like.
Left connecting rod 13L as one connecting rod
And a right connecting rod 13R as the other connecting rod.

As shown in FIGS. 7 and 8, the left connecting rod 13L has a disk portion 19 at the base end and an elongated rod portion 20 following the disk portion 19. And the disk part 19
Are formed along the peripheral edge of the disk portion 19 with two engaging concave portions 22 which are recessed from the inner surface 21 of the disk portion 19. In the illustrated example, the two engaging recesses 22 are located at positions facing each other on the diameter of the disk portion 19 which is on the extension of the rod portion 20 in the longitudinal direction. The drive shaft 11 and a hole 24 to which a return spring 23 described later is mounted are formed at the center of the disk portion 19. Hole 2
4 comprises an outer large-diameter hole 24a and an inner small-diameter hole 24b. In the vicinity of the disk portion 19 on the inner surface of the rod portion 20, a convex portion 25 as an engaging portion is formed.
A mounting hole 26 for the pedal 14 is formed at the tip of the.

In FIGS. 14 and 15, reference numeral 23 denotes a torsion spring type return spring. The return spring has a coil shape, and both ends 23a, 2a of the coil.
The direction of 3b forms an angle of, for example, 90 °. As shown in FIG. 16, the return spring 23 is mounted in the large-diameter hole 24a of the disc portion 19 of the left connecting rod 13L as follows. That is, one end 23a of the return spring 23 is inserted into a spring groove 28 formed on the peripheral surface of the large diameter hole 24a, and the other end 23b is a small diameter shaft 11L (FIG. 5) at one end of the drive shaft 11 fitted into the small diameter hole 24b. ) Is inserted through a diametrical groove 27 formed in the end face. In the state shown in FIG. 16A, the return spring 23 is wound clockwise against the elasticity, and the rod portion 20 rotates counterclockwise as indicated by arrow B by the force of the return spring. It is urged to rotate to the position shown in FIG. After the return spring 23 is mounted in the large-diameter hole 24a as described above, the cover 31 shown in FIG. 19 is provided.

As shown in FIGS. 9 and 10, the right connecting rod 13R has a hole 30 for mounting the drive shaft 11 at the base end of the rod 29, and a mounting hole for the pedal 14 at the distal end. 31
Are formed. The hole 30 includes an outer large-diameter hole 30a and a small-diameter hole 30b having a non-circular cross section into which the non-circular end 11R (FIG. 5) of the drive shaft 11 is inserted. The non-circular end 11R of the drive shaft 11 is inserted into the small-diameter hole 30b having a non-circular cross section, and the nut 30c (FIG. 3) is inserted into the screw shaft 11Ra (FIG. 5) at the tip of the non-circular end 11R in the large-diameter hole 30a. The right connecting rod 13R is fixed to the right end of the drive shaft by screwing and tightening.

As shown in FIGS. 3 and 4, the clutch 15 comprises a main body 32, a spring 34, and an operation lever mechanism 35. The main body 32 includes a large flange portion 36 and a small flange portion 37, as shown in FIGS.
Is formed at each end thereof, the inner peripheral hole 33 of which is slidably fitted on the outer periphery of the drive shaft 11, and the main body 32 is movable along the axis of the drive shaft 11. . However, as will be described later, the main body 32 is
It cannot be rotated relative to 1. Then, as shown in FIG.
A pair of radially inner convex portions 39 are provided. These inner projections 39 are diametrically opposed to each other, and one of them is at a position 30 ° obliquely forward and downward from the vertical diametric reference line Z, and the other inner projection 39 is the one inner projection 39.
180 ° with respect to the position. In addition, these inner protrusions 39 are formed so that the inner surface 40 is fitted to the outer peripheral surface 41 (FIGS. 7 and 8) of the disk portion 19 of the left connecting rod 13L. Further, radial outer convex portions 43 are formed on the outer edge portion 42 of the outer surface 38 of the large flange portion 36 at a position on the right side of the reference line Z and a position on the left side of the reference line Z, respectively. The protrusion 25 formed on the rod portion 20 when the left connecting rod 13L is rotated (FIGS. 7 and 8).
It comes into contact with the side surface. A pair of outer convex portions 4
The relative positions of 3 and a pair of inner concave portions 39 are determined as follows. That is, the upper outer convex portion 43 is separated from the radial line passing through the upper inner convex portion 39 in FIG.
The circumferential end surface 43a of the lower outer convex portion 43 is located at a distance W in a counterclockwise direction from the radial line passing through the lower inner convex portion 39 in the counterclockwise direction. . Here, W is the rod 2 of the connecting rod 13 (13L).
0, that is, half the width of the convex portion 25.

The spring 34 has a conical coil shape as shown in FIG.
It is inserted between the clutch 15 and the small flange portion 37 of the main body 32. The operation lever mechanism 35 is shown in FIGS.
As shown in FIGS. 7 and 18, a lever 44, a lock pin 45 projecting from the lever 44, and a wire 46 are provided.

The lever 44 has a proximal end formed at a forked portion 44a. The forked portion 44a is located on the outer periphery of the cylindrical clutch body 32 as shown most clearly in FIG. A roller 47 is provided at the tip of each forked portion 44a.
Are rotatably mounted on a shaft. These rollers 47 can be brought into contact with the side surface of the small flange portion 37 of the clutch 15. When the roller 47 comes into contact with the side surface of the small flange portion 37, the roller 47 rotates in accordance with the rotation of the clutch 15. Has become. As shown in FIG. 18, a stepped hole 50 is formed at the base of the forked portion 44a, and the stepped hole 50 is formed with the large hole 48 and the small hole 4 as shown in FIG.
The lock pin 45 having a flange 51 at one end is inserted into the hole 50. The large hole 48 has a seat 52 formed therein.
A spring 53 is inserted between the cover 53 and the flange 51 of the lock pin 45, and the lock pin 45 is constantly urged toward the outside of the lever 44.

As shown in FIG. 3, the lever 44 is rotatably supported in a horizontal plane on a frame F of the motorcycle by a pin 56 inserted into a hole 55 at an intermediate portion of the lever 44. The frame F is integrally provided with a sleeve 60 for rotatably supporting the drive shaft 11. The lock pin 45 is normally engaged with the concave portion 16 of the engagement plate 12 with the lever 44 pivoted by a pin 56. One end of the wire 46 is inserted into the hole 57 at the end of the lever 44, and the other end of the wire 46 is connected to an operation handle (not shown).

As shown in FIG. 20, a pin 63 is inserted diametrically on the clutch 15 side of the drive shaft 11 which integrally supports the engagement plate 12, while a hole 33 inside the clutch 15 is provided. Are formed with axial grooves 64, and the pins 63 engage with these grooves 64. Therefore, the clutch 15 rotates in synchronization with the rotation of the drive shaft 11. FIG. 11 shows the engagement plate 1 around the drive shaft 11.
The relationship between the angular positions of the two concave portions 16, the inner convex portion 39, and the outer convex portion 43 is shown. The diameter line passing through the recess 16 and the reference line Z form 90 °.

Next, the operation of the switching device 10 described above will be described.

First, when pedaling the motorcycle 14, the operation lever mechanism 35 is operated by operating an operation handle (not shown).
Loosen the glue wire 46. Then, in FIG. 3, since the lever 44 is free, the clutch 15 moves along the drive shaft 11 toward the left connecting rod 13L by the force of the spring 34. Therefore, the small flange portion 37 of the clutch 15 acts on the forked portion 44a of the lever 44 via the roller 32,
The lever 44 rotates clockwise around the fixed pivot pin 56 so that the lock pin 45 of the lever 44
Deviate from 6. On the other hand, both inner convex portions 39 of the clutch 15
Is fitted into both engagement recesses 22 of the left connecting rod 13L. On the other hand, the end surface 43a of the upper right outer convex portion 43 in FIG.
Abuts on the side surface of the convex portion 25 of the left connecting rod 13L. The inner convex portions 39 are fitted into the engaging concave portions 22, respectively, and FIG.
When the convex portion 25 of the left connecting rod 13L abuts on the upper right outer convex portion 43 of the right connecting rod 13L, the left connecting rod 13L faces the opposite direction at an angle of 180 ° around the drive shaft 11 with respect to the right connecting rod 13R. Designed for Therefore, the left and right pedals 1
4 and 14 take the position where a normal motorcycle is rowed. Therefore, in this state, it is possible to row the motorcycle and proceed.

On the other hand, in the case of putting on a foot without using the pedal 14 of the two-wheeled vehicle (for example, putting on the foot of a two-wheeled motor vehicle or stepping down a hill on a bicycle, etc.), a wire is operated by operating an operation handle (not shown). 46 is pulled to the left in FIG. This causes the lever 44 to rotate counterclockwise around the fixed pivot pin 56 in FIG. At this time, as shown in FIG. 11, if the drive shaft 11 is rotated so that the concave portion 16 of the engaging plate 12 assumes the horizontal position, the lock pin 45 of the lever 44 fits into the concave portion 16 and The angular position of the plywood 12 is locked at the position shown in FIG. If the right connecting rod 13R is designed to be held at a position 30 ° obliquely forward and downward of the drive shaft 11 as shown in FIG. 2 at this angular position, the right connecting rod 13R is fixed at that position. On the other hand, when the lever 44 is rotated counterclockwise around the fixed pivot pin 56, the clutch 15 is pushed by the roller of the lever 44, and is connected to the right along the drive shaft 11 against the force of the spring 34. Move to the side of the rod 13R. For this reason, the clutch 15
Of the left connecting rod 13L.
Therefore, the left connecting rod 13L is rotated by 180 ° counterclockwise in FIG. 11 by the urging force of the return spring 23, and the left connecting rod 13L has a convex portion of the left connecting rod 13L on the end surface 43a of the other (lower) outer convex portion 43. 25 sides abut.
At this contact position, the left connecting rod 13L is designed to take the same angular position as the right connecting rod 13R, so that both the right connecting rod 13R and the left connecting rod 13L as shown in FIGS. 1 and 2. Maintain a position 30 ° diagonally forward and downward. Therefore, it is possible to run with both feet on the pedals 14 in a comfortable posture.

To return to the normal state shown in FIG. 3, a procedure reverse to that described above may be taken. In the above description, the angle between the right connecting rod 13R and the left connecting rod 13L when traveling with both feet on the pedals 14, 14 is set to 30 ° obliquely forward and downward, but the angular position may be set arbitrarily. it can. Further, although the description has been given as applied to a motorcycle, the principle of the present invention can be applied to any vehicle propelled by pedaling, such as a tricycle. Also, the left connecting rod 13L and the right connecting rod 13
Even if the relation of R is reversed, the principle of the present invention can be similarly realized.

[0026]

As described above, according to the present invention,
By simply operating the operation mechanism, it is possible to switch easily and easily when the pedal of a motorcycle or the like is necessary for normal pedaling, or for foot mounting with both feet aligned,
The range of use of the pedal is expanded. According to the configuration of the present invention, the object can be achieved at a low cost with a simple structure.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view showing an embodiment of a pedal position switching device for a motorcycle or the like according to the present invention, in which pedals are aligned.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a horizontal sectional view showing an operation when the pedal of FIG. 1 is shifted by 180 °.

FIG. 4 is a horizontal sectional view showing a case where the pedal of FIG. 3 is fixed at a position different by 180 °.

FIG. 5 is a side view of a drive shaft.

FIG. 6 is a view as viewed in a direction indicated by reference numeral 6 in FIG. 5;

FIG. 7 is a longitudinal sectional view of the left connecting rod.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a longitudinal sectional view of the right connecting rod.

FIG. 10 is a side view of FIG. 9;

FIG. 11 is an axial end view of a clutch and the like.

FIG. 12 is a sectional view taken along line 12-12 of FIG. 11;

FIG. 13 is a sectional view taken along line 13-13 of FIG. 11;

FIG. 14 is a plan view of a return spring.

FIG. 15 is an end view of a return spring.

FIG. 16 shows how the return spring is attached to the left connecting rod,
The side view which shows the effect | action.

FIG. 17 is a partial cross-sectional side view of a control lever.

18 is a plan view of FIG.

FIG. 19 is a perspective view showing a relationship between a clutch and a forked portion of a lever.

FIG. 20 is a perspective view showing a relationship between a clutch and a drive shaft.

FIG. 21 is a side view of a conventional two-wheeled vehicle pedal mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Switching device 11 Rotation drive shaft 12 Engagement plate 13L Left (second) connecting rod 13R Right (first) connecting rod 14 Pedal 15 Clutch 16 Concave part 22 Engagement concave part 23 Return spring 25 Convex part 32 Clutch body 33 Holding member 34 spring 35 operating lever mechanism 39 inner convex part 43 outer convex part 44 lever 44a bifurcated part of lever 45 lock pin 46 wire 47 roller

[Procedure amendment]

[Submission Date] June 28, 1999 (1999.6.2
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Pedal position switching device for motorcycles etc.

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a motorbike,
In connection with pedals of motorcycles such as bicycles, particularly when pedaling manually and when driving on a motor or going down a slope, when pedaling is not required,
The present invention relates to a switchable pedal position switching device for a motorcycle or the like.

[0002]

2. Description of the Related Art A conventional motorcycle pedal mechanism is shown in FIG.
1 is known. This petal mechanism 1
Are connected to the rotary drive shaft 2 and 180 ° at both ends of the rotary drive shaft 2.
Connecting rods 3 projecting in opposite directions at an angle of ゜
And a pedal section 4 pivotally attached to the ends of these connecting rods 3. A sprocket 5 is fixed to the rotary drive shaft 2, and a chain 6 is wound around the sprocket 5. When the pedals 4 on both sides of the rotary drive shaft 2 are rowed with both feet, the sprocket 5 rotates, and the rear wheels of the motorcycle are driven via the chain 6 so that the motorcycle runs.

[0003]

By the way, when the user rides on a motorcycle and does not pedal the pedals 4 with both feet, the feet are placed on a straight line which is approximately 30 ° obliquely forward and downward with respect to a vertical line passing through the saddle or the rotary drive shaft. The most comfortable position is obtained by placing the pedal on the pedal in the position. However, in the conventional pedal mechanism 1 for a motorcycle, the two left and right pedals 4 are attached at an angle of 180 ° in opposite directions.
Even if one of the pedals 4 is placed on a straight line at an angle of about 30 ° diagonally forward and downward with respect to a vertical line passing through the saddle, the other pedal 4 is located above and behind the drive shaft 2 so that the pedal 4 has a comfortable posture. Can not.

[0004] In view of this, the present invention provides a motorized bicycle,
When running on a two-wheeled vehicle such as a bicycle by pedaling with both feet, the pair of pedals are at opposite angles to each other at an angle of 180 ° with respect to the drive shaft as usual.
When it is not necessary to use the pedal mechanism to drive the motorcycle, the two pedals can be placed at a predetermined angle, for example, about 30 °, on a straight line obliquely forward and downward with respect to a vertical line passing through the saddle or the rotary drive shaft. It is an object of the present invention to provide a pedal position switching device.

[0005]

In order to solve the above-mentioned problems of the prior art, in the pedal position switching device for a motorcycle or the like according to the present invention, a rotary drive shaft rotatably supported by a vehicle body and a rotary drive shaft of the rotary drive shaft are provided. In a pedal position switching device such as a motorcycle having a connecting rod radially protruding from both ends and a pedal supported at the tip of the connecting rod, a first connecting rod at one end of a rotary drive shaft is provided together with the rotary drive shaft. The second end of the other end of the rotary drive shaft is fixed to the rotary drive shaft so as to rotate integrally.
Is connected to the rotary drive shaft so as to be rotatable relative to the rotary drive shaft, and the rotary drive shaft is fixed to the vehicle body so that the first connecting rod is fixed at a predetermined angular position around the rotary drive shaft. And locking means for locking
The second connecting rod is formed at a normal angular position with respect to the first connecting rod at 180 ° around the rotary drive axis, at the same angular position with respect to the first connecting rod at the rotary drive axis, and so on. An operation mechanism for selectively positioning the second connecting rod at the angular position when the lock means for locking the rotary drive shaft is at the position for locking the rotary drive shaft; An interlocking mechanism is provided for interlocking the locking means and the operating mechanism so as to be able to be selectively positioned at the angular position and the equiangular position.

In the present invention, the second connecting rod is
An operating mechanism that enables selective positioning between the normal angular position and the equiangular position is movable along the rotary drive axis around the rotary drive axis so as not to rotate relative to the rotary drive axis. A supported clutch body, wherein the clutch body approaches the second connecting rod of the clutch body;
The second connecting rod can be engaged and disengaged with the second connecting rod in accordance with the separation, and when the clutch body is at the position where it is disengaged from the second connecting rod, the second connecting rod is positioned at the normal angular position and the equiangular position. It can be configured to be movable between and.

In a state where the second connecting rod can be selectively located at the normal angular position and the equiangular position, the second connecting rod is moved from the normal angular position to the second angular position. A device for biasing to an equiangular position can be provided.

[0008] Further, the means for locking the rotary drive shaft may include an engaging member that rotates integrally with the rotary drive shaft, an engaging portion provided on the engaging member, and the engaging portion having a predetermined rotation angle. A lock member supported by the vehicle body so as to engage with it when in the position.

The engaging member may be constituted as an engaging plate, the engaging portion may be a concave portion provided in the engaging plate, and the lock member may be constituted by a lock pin.

[0010] Further, the means for locking the rotary drive shaft may include an engaging member that rotates integrally with the rotary drive shaft, an engaging portion provided on the engaging member, and the engaging portion having a predetermined rotation angle. A lock member supported by the vehicle body so as to be able to engage with the engagement portion when in the position, and the clutch body is provided adjacent to the engagement member in the direction of the rotational drive shaft, and the lock member includes a clutch. When the main body is displaced in a direction away from the second connecting rod, the main body is engaged with the engaging portion of the engaging member, and when the clutch main body is displaced in a direction approaching the second connecting rod, the engaging member is disengaged. It can be connected to the clutch body so as to be separated from the joint.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pedal position switching device (hereinafter, referred to as a switching device) for a motorcycle or the like according to the present invention will be described below with reference to FIGS.

As shown in FIGS. 3 and 4, the switching device 1
Numeral 0 includes a rotary drive shaft (hereinafter referred to as a drive shaft) 11, connecting rods 13 on both sides thereof, and a pedal 14 at the end of each connecting rod. The engagement plate 12 is provided in a protruding manner, and a clutch 15 as an engagement means is provided to face the engagement plate 12. A drive sprocket 5 of a chain is attached to the drive shaft 11 in a conventional manner.

As shown in FIG. 5, the drive shaft 11 has the disk-shaped engaging plate 12 formed slightly closer to one side than the center. U is located at one location on the circumference of the engagement plate 12.
A concave portion 16 (FIG. 6) cut out in a letter shape is formed.
As shown in FIG. 3 and FIG. 4, the pair of connecting rods 13 usually protrude from both ends of the drive shaft 11 in the radial direction of the drive shaft in directions different from each other by 180 °. As shown in FIG. 3, the connecting rod 13 moves in the traveling direction (arrow A) of a motorcycle or the like.
Left connecting rod 13L as one connecting rod
And a right connecting rod 13R as the other connecting rod.

As shown in FIGS. 7 and 8, the left connecting rod 13L has a disk portion 19 at the base end and an elongated rod portion 20 following the disk portion 19. And the disk part 19
Are formed along the peripheral edge of the disk portion 19 with two engaging concave portions 22 which are recessed from the inner surface 21 of the disk portion 19. In the illustrated example, the two engaging recesses 22 are located at positions facing each other on the diameter of the disk portion 19 which is on the extension of the rod portion 20 in the longitudinal direction. The drive shaft 11 and a hole 24 to which a return spring 23 described later is mounted are formed at the center of the disk portion 19. Hole 2
4 comprises an outer large-diameter hole 24a and an inner small-diameter hole 24b. In the vicinity of the disk portion 19 on the inner surface of the rod portion 20, a convex portion 25 as an engaging portion is formed.
A mounting hole 26 for the pedal 14 is formed at the tip of the.

In FIGS. 14 and 15, reference numeral 23 denotes a torsion spring type return spring. The return spring has a coil shape, and both ends 23a, 2a of the coil.
The direction of 3b forms an angle of, for example, 90 °. As shown in FIG. 16, the return spring 23 is mounted in the large-diameter hole 24a of the disc portion 19 of the left connecting rod 13L as follows. That is, one end 23a of the return spring 23 is inserted into a spring groove 28 formed on the peripheral surface of the large diameter hole 24a, and the other end 23b is a small diameter shaft 11L (FIG. 5) at one end of the drive shaft 11 fitted into the small diameter hole 24b. ) Is inserted through a diametrical groove 27 formed in the end face. In the state shown in FIG. 16A, the return spring 23 is wound clockwise against the elasticity, and the rod portion 20 rotates counterclockwise as indicated by arrow B by the force of the return spring. It is urged to rotate to the position shown in FIG. After the return spring 23 is mounted in the large-diameter hole 24a as described above, the cover 31 shown in FIG. 19 is provided.

As shown in FIGS. 9 and 10, the right connecting rod 13R has a hole 30 for mounting the drive shaft 11 at the base end of the rod 29, and a mounting hole for the pedal 14 at the distal end. 31
Are formed. The hole 30 includes an outer large-diameter hole 30a and a small-diameter hole 30b having a non-circular cross section into which the non-circular end 11R (FIG. 5) of the drive shaft 11 is inserted. The non-circular end 11R of the drive shaft 11 is inserted into the small-diameter hole 30b having a non-circular cross section, and the nut 30c (FIG. 3) is inserted into the screw shaft 11Ra (FIG. 5) at the tip of the non-circular end 11R in the large-diameter hole 30a. The right connecting rod 13R is fixed to the right end of the drive shaft by screwing and tightening.

As shown in FIGS. 3 and 4, the clutch 15 comprises a main body 32, a spring 34, and an operation lever mechanism 35. The main body 32 includes a large flange portion 36 and a small flange portion 37, as shown in FIGS.
Is formed at each end thereof, the inner peripheral hole 33 of which is slidably fitted on the outer periphery of the drive shaft 11, and the main body 32 is movable along the axis of the drive shaft 11. . However, as will be described later, the main body 32 is
It cannot be rotated relative to 1. Then, as shown in FIG.
A pair of radially inner convex portions 39 are provided. These inner projections 39 are diametrically opposed to each other, and one of them is at a position 30 ° obliquely forward and downward from the vertical diametric reference line Z, and the other inner projection 39 is the one inner projection 39.
180 ° with respect to the position. In addition, these inner protrusions 39 are formed so that the inner surface 40 is fitted to the outer peripheral surface 41 (FIGS. 7 and 8) of the disk portion 19 of the left connecting rod 13L. Further, radial outer convex portions 43 are formed on the outer edge portion 42 of the outer surface 38 of the large flange portion 36 at a position on the right side of the reference line Z and a position on the left side of the reference line Z, respectively. The protrusion 25 formed on the rod portion 20 when the left connecting rod 13L is rotated (FIGS. 7 and 8).
It comes into contact with the side surface. A pair of outer convex portions 4
The relative positions of 3 and a pair of inner concave portions 39 are determined as follows. That is, the upper outer convex portion 43 is separated from the radial line passing through the upper inner convex portion 39 in FIG.
Is located at a distance W in the counterclockwise direction from the radial line passing through the lower inner convex portion 39, and the circumferential end surface 43a of the lower outer convex portion 43 is located. . Here, W is the rod 2 of the connecting rod 13 (13L).
0, that is, half the width of the convex portion 25.

The spring 34 has a conical coil shape as shown in FIG.
It is inserted between the clutch 15 and the small flange portion 37 of the main body 32. The operation lever mechanism 35 is shown in FIGS.
As shown in FIGS. 7 and 18, a lever 44, a lock pin 45 projecting from the lever 44, and a wire 46 are provided.

The lever 44 has a proximal end formed at a forked portion 44a. The forked portion 44a is located on the outer periphery of the cylindrical clutch body 32 as shown most clearly in FIG. A roller 47 is provided at the tip of each forked portion 44a.
Are rotatably mounted on a shaft. These rollers 47 can be brought into contact with the side surface of the small flange portion 37 of the clutch 15. When the roller 47 comes into contact with the side surface of the small flange portion 37, the roller 47 rotates in accordance with the rotation of the clutch 15. Has become. As shown in FIG. 18, a stepped hole 50 is formed at the base of the forked portion 44a, and the stepped hole 50 is formed with the large hole 48 and the small hole 4 as shown in FIG.
The lock pin 45 having a flange 51 at one end is inserted into the hole 50. The large hole 48 has a seat 52 formed therein.
A spring 53 is inserted between the cover 53 and the flange 51 of the lock pin 45, and the lock pin 45 is constantly urged toward the outside of the lever 44.

As shown in FIG. 3, the lever 44 is rotatably supported in a horizontal plane on a frame F of the motorcycle by a pin 56 inserted into a hole 55 at an intermediate portion of the lever 44. The frame F is integrally provided with a sleeve 60 for rotatably supporting the drive shaft 11. The lock pin 45 is normally engaged with the concave portion 16 of the engagement plate 12 with the lever 44 pivoted by a pin 56. One end of the wire 46 is inserted into the hole 57 at the end of the lever 44, and the other end of the wire 46 is connected to an operation handle (not shown).

As shown in FIG. 20, a pin 63 is inserted diametrically on the clutch 15 side of the drive shaft 11 which integrally supports the engagement plate 12, while a hole 33 inside the clutch 15 is provided. Are formed with axial grooves 64, and the pins 63 engage with these grooves 64. Therefore, the clutch 15 rotates in synchronization with the rotation of the drive shaft 11. FIG. 11 shows the engagement plate 1 around the drive shaft 11.
The relationship between the angular positions of the two concave portions 16, the inner convex portion 39, and the outer convex portion 43 is shown. The diameter line passing through the recess 16 and the reference line Z form 90 °.

Next, the operation of the pedal position switching device 10 described above will be described.

First, when pedaling the motorcycle 14, the operation lever mechanism 35 is operated by operating an operation handle (not shown).
Loosen the glue wire 46. Then, in FIG. 3, since the lever 44 is free, the clutch 15 moves along the drive shaft 11 toward the left connecting rod 13L by the force of the spring 34. Therefore, the small flange portion 37 of the clutch 15 acts on the forked portion 44a of the lever 44 via the roller 32,
The lever 44 rotates clockwise around the fixed pivot pin 56 so that the lock pin 45 of the lever 44
Deviate from 6. On the other hand, both inner convex portions 39 of the clutch 15
Is fitted into both engagement recesses 22 of the left connecting rod 13L. On the other hand, the end surface 43a of the upper right outer convex portion 43 in FIG.
Abuts on the side surface of the convex portion 25 of the left connecting rod 13L. The inner convex portions 39 are fitted into the engaging concave portions 22, respectively, and FIG.
When the projection 25 of the left connecting rod 13L comes into contact with the upper right outer projection 43 of the right connecting rod 13L, the left connecting rod 13L faces the right connecting rod 13R at an angle of 180 ° around the drive shaft 11 in the opposite direction. Designed for Therefore, the left and right pedals 1
4 and 14 take the position where a normal motorcycle is rowed. Therefore, in this state, it is possible to row the motorcycle and proceed.

On the other hand, in the case of putting on a foot without using the pedal 14 of the two-wheeled vehicle (for example, putting on the foot of a two-wheeled motor vehicle or stepping down a hill on a bicycle, etc.), a wire is operated by operating an operation handle (not shown). 46 is pulled to the left in FIG. This causes the lever 44 to rotate counterclockwise around the fixed pivot pin 56 in FIG. At this time, as shown in FIG. 11, if the drive shaft 11 is rotated so that the concave portion 16 of the engaging plate 12 assumes the horizontal position, the lock pin 45 of the lever 44 fits into the concave portion 16 and The angular position of the plywood 12 is locked at the position shown in FIG. If the right connecting rod 13R is designed to be held at a position 30 ° obliquely forward and downward of the drive shaft 11 as shown in FIG. 2 at this angular position, the right connecting rod 13R is fixed at that position. On the other hand, when the lever 44 is rotated counterclockwise around the fixed pivot pin 56, the clutch 15 is pushed by the roller of the lever 44, and is connected to the right along the drive shaft 11 against the force of the spring 34. Move to the side of the rod 13R. For this reason, the clutch 15
Of the left connecting rod 13L.
Therefore, the left connecting rod 13L is rotated by 180 ° counterclockwise in FIG. 11 by the urging force of the return spring 23, and the left connecting rod 13L has a projection on the end surface 43a of the other (lower) outer projection 43. 25 sides abut.
At this contact position, the left connecting rod 13L is designed to assume the same angular position as the right connecting rod 13R, so that both the right connecting rod 13R and the left connecting rod 13L as shown in FIGS. 1 and 2. Maintain a position 30 ° diagonally forward and downward. Therefore, it is possible to run with both feet on the pedals 14 in a comfortable posture.

To return to the normal state shown in FIG. 3, a procedure reverse to that described above may be taken. In the above description, the angle between the right connecting rod 13R and the left connecting rod 13L when traveling with both feet on the pedals 14, 14 is set to 30 ° obliquely forward and downward, but the angular position may be set arbitrarily. it can. Further, although the description has been given as applied to a motorcycle, the principle of the present invention can be applied to any vehicle propelled by pedaling, such as a tricycle. Also, the left connecting rod 13L and the right connecting rod 13
Even if the relation of R is reversed, the principle of the present invention can be similarly realized.

[0026]

As described above, according to the present invention,
By simply operating the operation mechanism, it is possible to switch easily and easily when the pedal of a motorcycle or the like is necessary for normal pedaling, or for foot mounting with both feet aligned,
The range of use of the pedal is expanded. Further, in the present invention, in conjunction with locking the rotation drive shaft rotatably supported by the vehicle body to a predetermined angular position by a lock means, the second connecting rod supported at the end of the rotation drive shaft is provided. 1st connecting rod and 1
Since it can be selectively positioned at either the normal angular position forming an angle of 80 ° or the equiangular position forming the same angle as the first connecting rod, the locking operation of the locking means allows the locking operation on both sides. The connecting rod can be easily and reliably moved to a position where the pedal is placed on the foot with both feet aligned. Further, by unlocking the locking means, it is possible to fix the second connecting rod at a normal angular position at an angle of 180 ° with the first connecting rod, contrary to the above.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view showing an embodiment of a pedal position switching device for a motorcycle or the like according to the present invention, in which pedals are aligned.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a horizontal sectional view showing an operation when the pedal of FIG. 1 is shifted by 180 °.

FIG. 4 is a horizontal sectional view showing a case where the pedal of FIG. 3 is fixed at a position different by 180 °.

FIG. 5 is a side view of a drive shaft.

FIG. 6 is a view as viewed in a direction indicated by reference numeral 6 in FIG. 5;

FIG. 7 is a longitudinal sectional view of the left connecting rod.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a longitudinal sectional view of the right connecting rod.

FIG. 10 is a side view of FIG. 9;

FIG. 11 is an axial end view of a clutch and the like.

FIG. 12 is a sectional view taken along line 12-12 of FIG. 11;

FIG. 13 is a sectional view taken along line 13-13 of FIG. 11;

FIG. 14 is a plan view of a return spring.

FIG. 15 is an end view of a return spring.

FIG. 16 shows how the return spring is attached to the left connecting rod,
The side view which shows the effect | action.

FIG. 17 is a partial cross-sectional side view of a control lever.

18 is a plan view of FIG.

FIG. 19 is a perspective view showing a relationship between a clutch and a forked portion of a lever.

FIG. 20 is a perspective view showing a relationship between a clutch and a drive shaft.

FIG. 21 is a side view of a conventional two-wheeled vehicle pedal mechanism.

DESCRIPTION OF SYMBOLS 10 Pedal switching device 11 Rotary drive shaft 12 Engagement plate 13L Left (second) connecting rod 13R Right (first) connecting rod 14 Pedal 15 Clutch 16 Depression 22 Engagement recess 23 Return spring 25 Projection Reference Signs List 32 clutch body 33 holding member 34 spring 35 operating lever mechanism 39 inner convex part 43 outer convex part 44 lever 44a lever forked part 45 lock pin 46 wire 47 roller

Claims (6)

[Claims] 1. A pedal position switching device for a motorcycle or the like having a rotary drive shaft, connecting rods projecting radially from both ends of the rotary drive shaft, and a pedal supported at the tips of the connecting rods. A first connecting rod at one end of the rotary drive shaft is fixed to the rotary drive shaft so as to rotate integrally with the rotary drive shaft, and a second connecting rod at the other end of the rotary drive shaft is positioned relative to the rotary drive shaft. Means for rotatably mounted on the rotary drive shaft, means for locking the rotary drive shaft such that the first connecting rod is fixed at a predetermined angular position around the rotary drive shaft, and The rod is selected between a normal angular position at 180 ° around the rotary drive axis with respect to the first continuous rod and an equiangular position at the same angle around the rotary drive axis with respect to the first continuous rod. Operation mechanism that enables A pedal position switching device, characterized in that the pedal position is switched. 2. The method according to claim 1, wherein said means for locking said rotary drive shaft comprises: an engaging member which rotates integrally with said rotary drive shaft; an engaging portion provided on said engaging member; The pedal position switching device according to claim 1, further comprising a lock member provided to engage with the pedal position when the pedal is in the position. 3. The pedal position switching device according to claim 2, wherein said engaging member is an engaging plate, said engaging portion is a recess provided in said engaging plate, and said lock member is a lock pin. 4. A pedal position switching device according to claim 1, wherein said means for locking said rotary drive shaft and said operating mechanism are in an interlocking relationship. 5. An operation system according to claim 5, wherein said means for locking said rotary drive shaft locks said rotary drive shaft, said operating mechanism rotating said second connecting rod relative to said first connecting rod. 5. The method according to claim 4, wherein the normal angular position at 180 [deg.] Around the axis and the equiangular position at the same angle around the rotary drive axis with respect to the first connecting rod can be selectively positioned. Pedal position switching device. 6. The method according to claim 6, wherein said means for locking said rotary drive shaft locks said second drive rod with respect to said first continuous rod by 180 ° relative to said first drive rod. 6. The pedal position switching device according to claim 5, further comprising a device for automatically biasing the first connecting rod from the normal angular position to the equiangular position at the same angle around the rotary drive shaft.