JPS6024702Y2 - Gear shift operation device - Google Patents

Description

[Detailed description of the invention] The present invention is a speed change operation device applied to a bicycle.
The present invention relates to a speed change operation device that includes a control lever and performs a speed change operation by rotating the lever.

Conventionally, this type of device has been provided with an operating lever, a resistance that can maintain the stopped state in the rotational position, and a pointer that moves as the lever rotates, which is integrally supported. The gear position can be read using the pointer and an indicator provided on a cover that covers the support portion of the lever.

As described above, the pointer is integrally supported by the lever and moves only with the same stroke as the lever through all gear shifting positions, so the intervals between each display on the display can be made sufficiently wide. Moreover, the interval becomes narrower as the number of gear positions increases, and especially when the surroundings are dark, the display may be read incorrectly, making it impossible to reliably display the gear position. was there.

Therefore, the present invention was devised to solve the above problems, and its purpose is to provide a mechanical display mechanism using an indicator that moves in accordance with the operation of a control lever to indicate the gear position.
While the electric display allows for display regardless of day or night,
Even if one display fails, the gear position cannot be read due to the display on the other.However, when using a mechanical display, the shift position can be determined by absorbing the deviation caused by the reciprocating movement of the operating wire with respect to the outer cable. By setting the above, a reliable gear shifting operation can be performed, and the display can be amplified with respect to the stroke of the operating lever, so that the gear position can be read reliably.

That is, the present invention provides a speed change operation device in which an operating lever is rotatably supported on a fixed member, and has a guide groove for the lever, and a cover that covers the base of the lever is attached to the fixed member. A movable body that is directed to move freely in the length direction of the guide groove, and a following means having a gap that causes the movable body to follow the rotation of the lever and to follow the rotation of the lever with a predetermined delay when the rotational direction of the lever is changed. an indicator that is movably directed to the cover and indicates the gear position; an amplification transmission mechanism that amplifies the movement of the moving body and transmits the signal to the indicator; and an electric display that electrically displays the gear position. It is characterized by having a container.

Hereinafter, embodiments of the device of the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes a fixing member that is fixed to a bicycle frame F, such as a handlebar stem, and has an abbreviated shape.A band member 2 is hooked near one end of this fixing member 1 to support it. A tightening bolt 3 is installed between one end of the member 2 and the other end of the board 1, and the frame F is clamped by tightening the bolt 3, thereby fixing the board 1 to the frame F. .

Therefore, the operating lever 4 is placed between the shaft body 5 and the base plate 1.
This allows it to be supported freely in rotation.

As shown in FIGS. 1 and 2, this lever 4 is a vertically elongated plate, and has a knob 41 at its upper end and a through hole 42 through which the shaft 5 can be inserted at its lower end. On both sides between the knob 41 and the through hole 42, an arcuate abutting portion 4 having an outward bulge with the center position in the width direction as a fulcrum is provided.
3.43.

Furthermore, a plurality of locking holes 44 are provided at the lower end of the through hole 42 along the rotation locus of the lower end and corresponding to the amount of movement of the lower end corresponding to the gear position. .

Further, the fixing member 1 is provided with a locking body 6 that engages with one of the locking holes 44 provided in the lever 4, and the locking body 6 is secured by an elastic body 7 such as a leaf spring. By pressing the locking body 6 toward the locking hole 44, the gear position is determined by the engagement of the locking body 6 with the locking hole 44, and at the same time, the lever 4 is stopped at a position corresponding to the gear position.

Reference numeral 8 denotes a cover that covers the base of the lever 4, and has a box shape with an open bottom surface, and is provided with an upper wall 81 and a lower wall 82, and the lower wall 82 has a straight wall that guides the lever 4. An elongated guide groove 83 is provided, and a straight elongated hole 84 is provided in the upper wall 81 along the guide groove 83.

Then, the cover 8 is attached to the fixing member 1.

A movable body 9 that follows the lever 4 is supported on the lower wall 82 of the cover 8 in a freely movable manner, and a pointer 10 is supported in a freely rotatable manner on the upper wall 81 of the cover 8. 10 is interlocked with the movable body 9, and a display body 11 is provided on the upper wall 81 of the cover 8 to display the gear position along the rotation locus of the pointer 10.

The movable body 9 is connected to the guide groove 8 as shown in Fig. 1.3.4.
3 and a connecting portion 13 that connects the pointer 10 are integrally formed in a T-shape. It has a rectangular tube shape that can be moved in the length direction with resistance, and can be moved freely in the length direction of the lever 4, and can only move within a certain range in the rotation direction of the lever 4. The abutment part 43.4 of said lever 4 as possible
It is inserted into 3.

That is, the guide body 12 of the movable body 9 has a frame shape, into which the lever 4 is inserted, and the abutting portion 4
A desired gap is provided between 3 and the moving body 9 to absorb the deviation of the operating wire with respect to the outer cable when changing speed from high speed to low speed and vice versa. The body 9 is configured to follow the lever 4.

Furthermore, an engaging portion 91 is provided on one side of the opposing surfaces between one side surface of the guide portion 12 and the inner side surface on the long side of the guide groove 83, and an engaging portion 91 is provided on the other side. A holding portion 85 is provided to support the guide portion 12 on the upper wall 81 of the cover 8 by fitting the holding portion 91 to the holding portion 85.
The moving body 9 is attached to the lever 4 as the lever 4 rotates.
However, the lever 4 is forced to move linearly along the guide groove 83 with the predetermined delay described above.

The connecting portion 13 of the movable body 9 is provided with an elongated connecting hole 14, and its base is provided at the upper part of the center in the longitudinal direction of one side of the guide portion 12, and the connecting portion 13 is provided on the lower wall of the cover 8. 13.

Further, the pointer 10 is formed into a plate shape of a certain length as shown in FIGS. 3 and 4, and has a support shaft 15 at one end and a connector 16 projecting downward from the lower surface of the pointer 10 near the other end. It is.

The pointer 10 is rotatably supported by a support shaft 15 near the elongated hole 84 in the upper wall 81 of the cover 8, and is attached to the upper wall 81 in an arcuate shape along the rotation locus of the connector 16. A guide hole 17 is formed, and the connector 16 is inserted through the guide hole 17 and connected to the connecting hole 14 of the movable body 9. and the pointer 10 relative to the stroke of the lever 4.
The rotational reciprocating motion is amplified, and the above structure constitutes the amplification transmission mechanism of the present invention.

Further, the display body 11 displays the gear positions 1 to 6 on the upper wall 81 radially outward of the rotation locus drawn by the tip of the pointer 10.

Reference numeral 18 designates a transparent cover provided on the upper wall 81 to cover the rotation locus of the pointer 10 and the display 11.

In addition, 19 is an electric indicator such as an LED indicator that digitally displays the gear position, and 20 is an LED indicator 1.
9 is a lamp for irradiating light, and 21 is a switch for operating the LED display 19 and lamp 20.

In the above configuration, when the operation lever 4 is rotated to perform a gear change operation, the contact portion 43 of the cover 4
As a result, the movable body 9 is operated so that its guide portion 12 linearly follows the lever along the guide groove 83 with a predetermined delay, and this operation causes the pointer 10 to move so that the connector 16 is attached to the side wall of the connecting hole 14. Connecting hole 1 while sliding along the length direction
The pointer 10 is pressed and driven by the four side walls to rotate around the support shaft 15, and the tip of the pointer 10 instructs the display 11 to display the gear position.

By the way, when the display of the gear position by operating the lever 4 is instructed by the pointer 10, the movable body 9 that follows the movement of the lever 4 moves in a straight line, whereas the pointer 1 moves in a straight line.
The tip part exerts rotational motion within a rotation radius around the support shaft 15 and within a certain rotation angle range, and the amount of operation is amplified by the rotation radius and rotation angle. As a result, the interval between each display on the display body 11 can be widened in accordance with the amplification factor, and the display can be read reliably without error.

Each display interval of the display body 11 is determined by the lever 4.
By changing the shape of the contact portion 43.43, the third
The spacing can be changed arbitrarily to irregular intervals as shown in the figure, or even intervals (not shown).

The pointer 10 has a support shaft 15 provided at one end of the pointer 10 and pivotally supported near the elongated hole 84 of the upper wall 81, and a connector 16 provided near the other end of the pointer 10. However, as shown in FIG. In addition, the connector 16 may be provided near one end of the pointer 10 and the other end may be opposed to the display 11. In this case, the connector 16
The guide hole 17 is provided at an intermediate position between the elongated hole 84 in the upper wall 81 and the pivot position of the support shaft 15.

As described above, the present invention provides a speed change operating device in which an operating lever is rotatably supported on a fixed member fixed to a bicycle frame, and has a guide groove for the lever and a cover that covers the base of the lever. A gap is provided between the movable body that is directed to move freely in the length direction of the guide groove and the movable body to follow the rotation of the lever and to follow the rotation direction of the lever with a predetermined delay when the direction of rotation of the lever is changed. an indicator that is movably supported by the cover and indicates the gear position, an amplification transmission mechanism that amplifies the movement of the moving body and transmits the signal to the indicator, and electrically displays the gear position. In other words, the present invention includes a movable body that can move freely in the guide groove, a follower that causes the movable body to follow the rotation of the operating lever with a constant delay, and a speed changer. This mechanical display is a combination of a structure that mechanically displays the gear position using an indicator that indicates the gear position and an amplification transmission mechanism, and an electric indicator that electrically displays the gear position. Since the gear position can be displayed using the mechanism and the electric display, the gear position can be read reliably.

In other words, the gear position can be reliably and accurately read by the electric indicator during the night, and mainly by the indicator during the day, and even if the electrical indicator breaks down, the gear position can be read by the indicator. This is possible.

Furthermore, since the movable body is made to follow the rotation of the operating lever with a predetermined delay, when the lever is operated to change gears from low to high speed and vice versa, the operating wire from the lever to the transmission is It can absorb misalignment with respect to the outer cable, so by aligning the indicator with a display such as a scale, the transmission can be operated accurately to the gear shift position corresponding to the gear position, and gear shifts can be performed reliably at all times. It becomes.

Furthermore, since an amplification transmission mechanism for transmitting power to the indicator is provided, the interval between each gear stage in the indicator can be made sufficiently wide according to the desired amplification factor, and the reading can be easily seen. It is also possible to eliminate reading errors.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a sectional front view, FIG. 2 is a partially cutaway left side view, FIG. 3 is a plan view, and FIG. 4 is a perspective view of the main parts. FIG. 5 is an explanatory diagram of main parts showing another embodiment. 1...Fixing member, 4...Operation lever,
8. Song/Cover, 83... Guide groove, 9...
・・Moving object, 1o・song・pointer, 11・・・・display object.

Claims (1)

[Scope of utility model registration request] An operating lever is rotatably supported on a fixed member fixed to a bicycle frame, and has a guide groove for the lever,
A speed change operation device comprising a cover that covers the base of the lever attached to the fixed member, the moving body being supported so as to be movable in the length direction of the guide groove, and the moving body following the rotation of the lever. and a following means having a gap for causing the lever to follow the rotation direction with a predetermined delay when the rotation direction of the lever is changed;
an indicator that is movably supported by the cover and indicates the gear position; an amplification transmission mechanism that amplifies the movement of the movable body and transmits the same to the indicator; and an electric indicator that electrically displays the gear position. A speed change operation device characterized by comprising: