Brake device for human-powered vehicle

A brake device for a human-powered vehicle, the brake device comprising:

• an input body to which a driving force is input;
• a brake configured to contact a rotational body of the human-powered vehicle;
• and
• a power converter configured to convert a rotational force of the input body to a force that moves the brake toward the rotational body,
• the power converter including a transmission configured to change a ratio of a movement amount of the brake to an output rotational speed of the input body,
• the transmission being configured to change the ratio between a first ratio and a second ratio that differs from the first ratio,
• the transmission being configured to transmit the rotational force of the input body to the brake through one of a first transmission path configured to set the ratio to the first ratio and a second transmission path configured to set the ratio to the second ratio,
• the input body including an input rotational shaft, a first input rotational body provided on the input rotational shaft, and a second input rotational body provided on the input rotational shaft and having an outer diameter that differs from that of the first input rotational body,
• the first input rotational body being configured to transmit a rotational force to the first transmission path, and
• the second input rotational body being configured to transmit a rotational force to the second transmission path.

A brake device for a human-powered vehicle, the brake device comprising:

• an input body to which a driving force is input;
• a brake configured to contact a rotational body of the human-powered vehicle;
• a power converter configured to convert a force of the input body to a force that moves the brake toward the rotational body;
• and
• a housing,
• the power converter including a transmission configured to change a ratio of a movement amount of the brake to an output amount of the input body, and
• the transmission being configured to set the ratio to a first ratio in a case where the brake is moved toward the rotational body until the brake contacts the rotational body, and the transmission being configured to set the ratio to a second ratio that differs from the first ratio as the brake comes into contact with the rotational body,
• the transmission being configured to change the ratio between a first ratio and a second ratio that differs from the first ratio,
• the power converter including a first shaft, a first converter, and a second converter, the first shaft having has a first center axis and being rotatable relative to the housing, the first converter being provided on the first shaft and configured to convert rotational motion to linear motion, and the second converter being provided on the first shaft and configured to convert rotational motion to linear motion.

A brake device for a human-powered vehicle, the brake device comprising:

• an input body to which a driving force is input;
• a brake configured to contact a rotational body of the human-powered vehicle;
• and
• a power converter configured to convert a force of the input body to a force that moves the brake toward the rotational body,
• the power converter including a transmission configured to change a ratio of a movement amount of the brake to an output amount of the input body,
• the transmission being configured to set the ratio to a first ratio in a case where the brake is moved toward the rotational body until the brake contacts the rotational body, and the transmission being configured to set the ratio to a second ratio that differs from the first ratio as the brake comes into contact with the rotational body,
• the transmission being configured to transmit a rotational force of the input body to the brake through one of a first transmission path configured to set the ratio to the first ratio and a second transmission path configured to set the ratio to the second ratio,
• the input body including an input rotational shaft, a first input rotational body provided on the input rotational shaft, and a second input rotational body provided on the input rotational shaft and having an outer diameter that differs from that of the first input rotational body,
• the first input rotational body being configured to transmit a rotational force to the first transmission path,
• the second input rotational body being configured to transmit a rotational force to the second transmission path.