JPS6250354B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bicycle shift operation notification device that is attached to a bicycle having a speed change mechanism, and in particular, it can be used to easily notify that the speed change of the speed change mechanism has been reliably performed by the operation of the notification section. Concerning what has been made possible to know.

In this type of bicycle, the transmission mechanism attached to the axle of the rear wheel is operated remotely by operating a control lever attached to the body pipe, etc., and the chain is changed between multiple gears to change the number of gears. However, in this case,
If the switching operation of the operating lever from one gear position to another gear position is not performed reliably, there is a risk that the chain will come off the gear and the transmission mechanism will malfunction.

In view of the above, the present invention provides a notification section for notifying the gear shift operation of the operating lever when the operating lever is not shifted to the normal gear position (i.e., when the operating lever is in the third or fourth gear position). When the driver stops at an intermediate position between one regular gear position and another regular gear position, such as an intermediate position between The system notifies the driver that the gear has not been operated and urges the driver to accurately shift to the normal gear position, thereby ensuring reliable gear shifting.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the bicycle gear shift operation notification device of the present invention will be explained based on embodiments shown in the drawings.

1 is a bicycle body, 2 is a transmission mechanism attached to the axle of the rear wheel 3 of this bicycle body 1, and this transmission mechanism 2 has five gears 4A, 4B, 4C, 4D,
4E, and a guide gear 6 for changing the chain 5 to any one of these transmission gears 4A, . . . , 4E.

Reference numeral 7 denotes a speed change operation member attached to the body pipe 1' of the bicycle body 1, and 8 represents a wire cable connecting the speed change operation member 7 and the speed change mechanism 2. The speed change operation of the control lever 9 of the speed change operation member 7 The signal is transmitted to the guide gear 6 of the transmission mechanism 2 via this wire cable 8, and the chain 5 is changed.

Reference numeral 10 denotes a bicycle shift operation notification device of the present invention attached to the operating member 7. In this shift operation notification device 10, 11 is a switch section, 12 is a notification section, and 13 is a delay activation section. Said switch part 1
1, 14 is a movable contact engaged below the pivot point 9' of the operating lever 9; 15 is a contact plate; 1;
6A, 16B, 16C, 16D, and 16E are first, second, third, and fourth contacts of the contact plate 15 that come into sliding contact with the movable contact 14 in response to the first to fifth gear shift operations of the operating lever 9. , a fifth fixed contact, and 17 are the first to fifth fixed contacts 16A of this contact plate 15.
1st, 2nd, 3rd, and 4th comb tooth contact piece 18A, 18B, 18C, 18 which can be inserted into each gap of 16E
A delay contact having D, the speed change operation of the operating lever 9 operates the speed change mechanism 2 via the wire cable 8, and the movable contact 14 passes through the corresponding fixed contact and the comb-teeth contact piece of the delay contact. It is now possible to switch between them. (For example, if the operating lever 9 is operated to shift accurately from the third stage to the fourth stage, the movable contact 14 will move from the third fixed contact 16C to the third comb-teeth contact piece 18C of the delay contact 17. (Later, it comes into contact with the fourth contact point 16D.) The notification section 12 is connected to the first to fourth contacts of the switch section 11.
The first, second, third, fourth, and fifth display light bulbs 19A, 1 connected to the fifth fixed contacts 16A to 16E, respectively.
It consists of an electric indicator 20 consisting of 9B, 19C, 19D, and 19E, and a horn 21.

The delay operation section 13 includes a charging/discharging capacitor 22 and a discharging resistor 2 connected to the delay contact 17.
3 and a control transistor 24, the capacitor 22 is charged by the contact of the movable contact 14 with the delay contact 17, and the movable contact 14
Due to the separation of the capacitor 2 from the delay contact 17
2 through a resistor 23, the control transistor 24 is turned on during this charging and discharging time, and the battery 25 power is supplied to the notification section 12, and the notification section 12 is activated for a certain period of time. It's starting to work.

When the operating lever 9 is operated to change gears, when the operating lever 9 is moved out of one normal gear position, the battery 25 power is transferred from the movable contact 14 to the delay contact 17 to the capacitor 22 of the delay actuating section 13. , the capacitor 22 is charged, and power is supplied to the horn 21, which is the alarm section, to start the sounding of the horn 21, after which the operating lever 9 reaches another normal gear position. When the movable contact 14 switches from the delay contact 17 to the fixed contact corresponding to the number of gears, the battery 25 power is supplied from the movable contact 14 to the corresponding display bulb via the fixed contact corresponding to the number of gears. , at this time, the delay operation section 1 is delayed by the discharge time of the capacitor 22.
By turning off the control transistor 24 of No. 3, power supply to the indicator light bulb and the alarm horn 21 is stopped, and therefore, this alarm section continues to operate when the operating lever 9 is out of the normal gear position. This system continuously informs the driver that the operating lever 9 is not in the normal gear position, and furthermore, the operating lever 9
When the gear is shifted to the normal gear position, the number of gears is displayed by the light emitted from the indicator light bulb, and the alarm 2 is activated.
1 is produced only for a certain period of time after the shift operation of the operating lever 9 is performed.

FIG. 5 shows an embodiment in which a 7-segment light emitting diode 26 is used as an electrical indicator in the notification section of the present invention, and an electronic buzzer 27 is used as an alarm, and FIG. 2 shows another embodiment in which the display time of the 7-segment light emitting diode 26, which is an electrical indicator, is longer than the operating time of the electronic buzzer 27, which is a warning alarm. In these figures, 28 is a multivibrator, 29 is a sounding body, 30 is a diode matrix, and 31 is a sounding time regulating circuit, and this regulating circuit 31 has a capacitor 32 and a resistor 33, and the discharging time of the capacitor 32 is longer than the discharging time of the charging/discharging capacitor 22. It is designed to be short.

The bicycle gear shift operation notification device of the present invention is as described above, and in particular, includes an operation lever that is attached to a bicycle body and that operates the gear shift mechanism of the bicycle, a notification unit that reports a gear change operation of the gear shift lever, and a and a delay actuation part that regulates the operating time of the control lever, and the delay actuation part is supplied with power and starts operating when the operating lever is removed from one gear position, and when the operating lever reaches another gear position. Since it operates for a certain period of time and supplies power to the notification section only during that time, when the operating lever is reliably shifted to another gear position, the notification section is activated in conjunction with the shift operation. This can be confirmed by once operating and then stopping the operation. On the other hand, if the operating lever is not reliably shifted to another gear position, the notification unit continues to operate, which may cause the driver to The system notifies the user that the operating lever has not been shifted to another gear position than the normal gear position, and urges the driver to accurately shift the gear position to the normal gear position, thereby ensuring that the gear shift operation is performed reliably. It is possible to completely prevent the chain from coming off the transmission gear, which is extremely beneficial in terms of traffic safety. Furthermore, according to the present invention, each time the bicycle driver performs a reliable gear shifting operation, the notification is only given for a certain period of time after the end of the operation, and therefore, power sources such as batteries are consumed only during this time, and are not consumed all the time. Therefore, it is possible to reduce power consumption.

[Brief explanation of the drawing]

The drawings all show embodiments of the bicycle gear shift operation notification device of the present invention, and Figure 1 is an overall view of the device incorporated into a bicycle body, Figure 2 is a diagram of a gear shift lever, A is a front view, B is a side view, C is a diagram of the contact plate. 3 is a basic relationship diagram, FIG. 4 is a basic circuit diagram, FIG. 5 is a circuit diagram of an embodiment, and FIG. 6 is a circuit diagram of another embodiment. 9...Operation lever, 2...Transmission mechanism, 12...
Information department.

Claims (1)

[Claims] 1. An operating lever that is attached to a bicycle body and that operates a speed change mechanism of the bicycle, a notification section that notifies a speed change operation of the speed change lever, and a delay activation section that regulates the operating time of the notification section, The actuating part is supplied with power and starts operating when the operating lever is removed from one gear position, and also operates for a certain period of time after reaching another gear position, supplying power to the notification part only during that time. Bicycle gear shift operation notification device.