Parking-brake-operation indicator and method of adjusting parking brake
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorMikio Murase
Life of this patent
Estimating the term…
Abstract
A parking-brake-operation indicator includes a lever having a pressing portion for pressing a brake disc of a parking brake to press contact the brake disc, a cable operable to draw the lever, a brake-operation tool connected to the cable, a switch for detecting a position of the lever and an indicating means for indicating operation of the parking brake.
Claims8
A parking-brake-operation indicator comprising:
- a lever having a pressing portion for pressing a brake disc of a parking brake to press contact the brake disc;
- a cable connected and operable to draw the lever;
- a brake-operation tool connected to the cable;
- a spring for urging the lever in a brake-release direction which causes braking of the parking brake to be released;
- a switch for detecting a brake-release position and a brake position of the lever having a contactor contactable with the lever, the contactor actuates the switch between an on-position and an off-position based on a state of contacting with the lever, the switch being configured to restrict movement of the lever in the brake-release direction in a state of contacting with the lever;
- and
- an indicating means for indicating operation of the parking brake based on the on-position or off-position of the switch.
A method of adjusting a parking brake in a vehicle that includes a lever having a pressing portion for pressing a brake disc of a parking brake to press contact the brake disc, a spring for urging the lever in a brake-release direction which causes braking of the parking brake to be released, a cable connected and operable to draw the lever and a brake-operation tool connected to the cable, the method comprising the steps of:
- providing a switch for detecting a brake-release position and a brake position of the lever to the vehicle having a contactor contactable with the lever, the contact actuates the switch between an on-position and an off-position based on a state of contacting with the lever;
- providing an indicating means for indicating state of the switch to the vehicle;
- adjusting tension of the cable with the brake-operation tool located in its brake position;
- and
- confirming that the lever is located in its brake-release position with the brake-operation tool located in its brake-release position.
A parking-brake-operation indicator comprising:
- a lever having a pressing portion for pressing a brake disc of a parking brake to press contact the brake disc;
- a cable connected and operable to draw the lever;
- a brake-operation tool connected to the cable;
- a switch for detecting a position of the lever having a contactor contactable with the lever, the switch includes a tubular contactor support which has an external thread formed on its outer circumferential surface, two disc nuts being screwed on the external thread of the contactor support;
- wherein the switch is configured to adjust its position so that a brake-release position of the lever is adjusted;
- a spring for urging the lever in a brake-release direction which causes braking of the parking brake to be released, wherein the switch being configured to restrict movement of the lever in the brake-release direction in a state of contacting with the lever;
- and
- an indicating means for indicating operation of the parking brake.
A parking-brake-operation indicator comprising:
- a lever having a pressing portion for pressing a plurality of brake discs of a parking brake to press contact the brake disc;
- a cable connected and operable to draw the lever;
- a brake-operation tool connected to the cable;
- a switch for detecting a position of the lever having a contactor contactable with the lever;
- a length adjuster provided on the cable adjacently to a connection of the cable to the brake-operation tool for adjusting a length of the cable;
- and
- an indicating means for indicating that the lever is dragged by the cable in the brake direction if the brake-operation tool is in the brake-release position.
Dependencies are inferred from the claim text.