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Speed change controller for saddle-ride type vehicles

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Speed change controller for saddle-ride type vehicles


A speed change controller is provided on a saddle-ride type vehicle and is suited to manipulation by a foot. The speed change controller for saddle-ride type vehicles comprises a detection mechanism that detects operation by a driver for speed change, and a speed change mechanism that performs speed change on the basis of speed change operation detected by the detection mechanism. The detection mechanism provided by the invention comprises an operation part manipulated by a foot for speed change and including a moving part, which moves relative to the vehicle on the basis of manipulation by a foot, and a detection unit that detects that the moving part moves a predetermined amount or more.


Browse recent Yamaha Hatsudoki Kabushiki Kaisha patents - Iwata-shi, JP
USPTO Applicaton #: #20140144271 - Class: 7447312 (USPTO) -
Machine Element Or Mechanism > Control Lever And Linkage Systems >Multiple Controlled Elements >Transmission Control >Electrical Actuator

Inventors: Makoto Kosugi, Michiya Hayashi, Toshimasa Nakagawa, Masaichi Yamada

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The Patent Description & Claims data below is from USPTO Patent Application 20140144271, Speed change controller for saddle-ride type vehicles.

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CROSS REFERENCE TO RELATED APPLICATIONS

This application is a National Phase application of International Application No. PCT/JP2005/013562, filed Jul. 25, 2005, which claimed priority to Japanese Application No. 2004-216937, filed Jul. 26, 2004, each of which is hereby incorporated by reference herein in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to saddle type vehicles and, more particularly, to a speed change controller for saddle-type vehicle.

2. Description of the Related Art

Conventionally, it is usual in vehicles that a driver\'s speed change device is mechanically and directly transmitted to a transmission by the use of a link, a rod, or wire to perform speed change operation. In recent years, however, there is proposed to adopt a shift actuator making use of an electric motor or the like to perform speed change operation for the purpose of making speed change operation by a driver easier. For example, JP-A-2001-050389 is as an example of such a shift actuator.

However, the above-referenced publication includes only a description to the effect that instructions of speed change for electrically-driven speed change control may be input into a control unit by a foot-moving type speed change pedal, and does not describe any concrete means for execution of such instructions of speed change. Accordingly, there remains a need for a speed change controller suited to manipulation by a foot.

SUMMARY

OF THE INVENTION

An object of the present invention is to provide a speed change controller for a saddle-type vehicle that is configured to be convenient an able to perform speed change operation preferably through manipulation by a foot of a driver.

Accordingly, one aspect of the present invention comprises a speed change controller provided for a saddle-ride type vehicle. The controller comprises a detection mechanism configured to detect an operation by a driver for speed change. The controller also includes a speed change mechanism that performs speed change on the basis of speed change operation detected by the detection mechanism.

In one of the configurations disclosed herein, the detection mechanism comprises an operation part that includes a moving part, which moves relative to the vehicle on the basis of manipulation by a foot, and a detection unit that detects that the moving part moves a predetermined amount or more.

In another configuration disclosed herein, the detection mechanism comprises an operation part comprising a moving part that moves relative to the vehicle through manipulation by a foot, a shift pedal directly manipulated by a foot, and a link member that connects between the pedal and the moving part.

Further, the detection mechanism comprises a detection unit that detects that the moving part moves a predetermined amount or more.

In one configuration, one end of the link member is constructed to be connectable to the moving part and attachable to an arm member provided on a shift shaft of the speed change mechanism.

In a further configuration, the moving part comprises a lever member provided to be able to turn, and one end of the link member is constructed to be connectable to the lever member and attachable to an arm member provided on a shift shaft of the speed change mechanism.

In another configuration disclosed herein, the moving part is supported to swing in two different vertical directions, and the detection unit detects a direction, in which the moving part swings, and discriminates between shift-up and shift-down by the direction.

In one preferred arrangement, the detection unit comprises a rotation sensor that detects that the moving part moves a predetermined angle about a predetermined rotating shaft.

In another preferred arrangement, the detection unit comprises at least one sensor to respective different directions, the sensors detecting that the moving part swings a predetermined amount or more in the two different directions from a predetermined reference position.

In another arrangement of the speed change controller disclosed herein, the detection mechanism comprises a base that supports at least the moving part and the detection unit, and the base is provided detachably on the vehicle.

Also, in yet another arrangement of a speed change controller disclosed herein, the moving part is constructed to be movable by manipulation by a foot in two different directions with a predetermined neutral position therebetween. The operation part comprises a return mechanism that automatically returns the moving part, which moves in either of the directions by manipulation by a foot, to the neutral position.

In one preferred arrangement, the detection mechanism comprises a base that supports at least the moving part, the detection unit, and the return mechanism, and the base is provided detachably on the vehicle.

In another of one speed change controller disclosed herein, the moving part is configured to be movable by manipulation by a foot in two different directions with a predetermined neutral position therebetween, and the operation part comprises a stopper that restricts a moving range of the moving part, which moves in either of the directions by manipulation by a foot.

In one preferred arrangement, the detection mechanism comprises a base that supports at least the moving part, the detection unit, and the stopper, and the base is provided detachably on the vehicle.

In one arrangement of a speed change controller disclosed herein, the detection mechanism comprises an operating force changing mechanism that changes torque required for operative movement of the moving part, and the operating force changing mechanism changes torque required for movement of the moving part when or after the detection unit detects that the moving part moves a predetermined amount or more.

In a preferred arrangement, the detection mechanism comprises an operating force changing mechanism that changes torque required for operative movement of the moving part, the operating force changing mechanism being provided on the base, and the operating force changing mechanism changes torque required for movement of the moving part when or after the detection unit detects that the moving part moves a predetermined amount or more.

Also, in a preferred arrangement, the operating force changing mechanism comprises a resistance portion, at least a part of which is deformable by elasticity, and an abutment formed in a position, in which it can contact with the resistance portion through at least manipulation by a foot immediately before the moving part can be detected by the detection unit, and when the moving part moves through manipulation by a foot immediately before it can be detected by the detection unit, at least a part of the resistance portion is pushed by the abutment whereby an increase in the torque is realized, and the abutment is formed so that push against the resistance portion by the abutment is released or the push force is decreased when the moving part moves a predetermined amount, which can be detected by the detection unit.

Also, in another preferred arrangement, the resistance portion comprises a surface portion in contact with the abutment and a spring portion connected to the surface portion, and the abutment comprises a convex portion that pushes the surface portion when the moving part moves through manipulation by a foot immediately before it can be detected by the detection unit.

Further, in a another arrangement, either of the resistance portion and the abutment is attached to the moving part, and the resistance portion or the abutment moves together with the moving part.

In another aspect of a speed change controller disclosed herein, the detection mechanism comprises an operation part including a loaded part, on which a load is applied by manipulation by a foot, and a detection unit that detects the load applied on the operation part.

In one arrangement, the detection mechanism comprises a base that supports the loaded part and the detection unit, and the base is provided detachably on the vehicle.

Also, in another arrangement of a speed change controller disclosed herein, the detection mechanism is supported on a vehicle body frame, which constitutes the saddle-ride type vehicle.

In another aspect of a speed change controller disclosed herein, the operation part comprises a variable mechanism that can change that portion, which is directly manipulated by a foot, in a position relative to the vehicle.

In one preferred arrangement, provided on the variable mechanism are a plurality of screw mount holes or screw mount slots to enable making that portion (for example, a shift pedal), which is directly manipulated by a foot, different in a position, in which it is mounted to the vehicle or the operation part.

Certain aspects and features of the arrangements described above can be provided on a saddle-type vehicle. In one arrangement, the saddle-type vehicle is a motorcycle.

On aspect of the present invention is a speed change controller for saddle-type vehicles that comprises an operation part including the moving part and a detection unit that detects that the moving part moves a predetermined amount or more, or comprises an operation part including the loaded part and a detection unit provided on the loaded part to be able to detect movement of a predetermined amount or more. In this arrangement it is possible to exactly detect a driver\'s intention for speed change although operation is performed by a foot, which is dull as compared with a hand and difficult to perform a delicate operation, and to surely perform speed change operation on the basis of results of the detection.

Another aspect of the present invention comprises a speed change controller for saddle-ride type vehicles that comprises a base to enable making the detection mechanism a unit. Also, it is possible to make assembling of the detection mechanism to a vehicle. Also, the provision of the base makes it possible to heighten the stiffness of a portion manipulated by a foot.

In one arrangement, the detection mechanism is constructed to be supported on a vehicle body frame whereby it is possible to improve the mechanism in rigidity.

In another arrangement, the speed change controller for saddle-ride type vehicles disclosed herein comprises the operating force changing mechanism whereby it is possible to improve feeling of manipulation by a driver\'s foot. Also, the return mechanism and/or the stopper is provided whereby manipulation by a driver\'s foot can be made easy.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view showing a motorcycle according to a first embodiment.

FIG. 2 is an exploded, perspective view showing a speed change mechanism according to the first embodiment.

FIG. 3 is a view showing a developed shape of a shift cam groove according to the first embodiment.

FIG. 4 is a side view showing a state, in which a shift pedal or the like according to the first embodiment is arranged.

FIG. 5 is a cross sectional view extending substantially in a horizontal direction and showing a state, in which a shift pedal or the like according to the first embodiment is arranged.

FIG. 6 is a side view showing a state, in which a shift pedal or the like according to a second embodiment is arranged.

FIG. 7 is a rear view of FIG. 6 according to the second embodiment.

FIG. 8 is a cross sectional view taken along the line VIII-VIII in FIG. 6.

FIG. 9 is a cross sectional view taken along the line IX-IX in FIG. 8.

FIG. 10 is a cross sectional view taken along the line X-X in FIG. 6.

FIG. 11 is a view showing a tip end of a shift pedal according to a third embodiment.

FIG. 12 is a cross sectional view taken along the line XII-XII in FIG. 11.

FIG. 13 is a side view showing an engine side according to a fourth embodiment.



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stats Patent Info
Application #
US 20140144271 A1
Publish Date
05/29/2014
Document #
14170823
File Date
02/03/2014
USPTO Class
7447312
Other USPTO Classes
International Class
16H59/04
Drawings
14




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