Rear brake device of vehicle

• US 10,507,884 B2
• Filed: 09/25/2017
• Issued: 12/17/2019
• Est. Priority Date: 09/29/2016
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Inase, Kosuke, Iwata, Masayuki, Gogo, Kazuhiko
• Primary Examiner(s): Rocca, Joseph M
• Assistant Examiner(s): Brittman, Felicia L.
• Application Number:
  US15/714,270
• Publication Number:
  US 20180086415A1
• Time in Patent Office: 813 Days
• Field of Search: 180219
• CPC Class Codes: B62K 11/04 characterised by the engine being between front and rear wheels
• CPC Class Codes: B62K 19/38 for attaching brake members
• CPC Class Codes: B62K 25/283 for cycles without a pedal crank, e.g. motorcycles
• CPC Class Codes: B62L 1/005 constructional features of brake elements, e.g. fastening of brake blocks in their holders
• CPC Class Codes: F16D 2055/0008 Brake supports
• CPC Class Codes: F16D 2055/0091 Plural actuators arranged side by side on the same side of the rotor
• CPC Class Codes: F16D 2121/04 acting on a piston-type actuator, e.g. for liquid pressure
• CPC Class Codes: F16D 2121/14 Mechanical
• CPC Class Codes: F16D 65/0075 assembled from a plurality of parts
• CPC Class Codes: F16D 65/18 adapted for drawing members together , e.g. for disc brakes

Abstract

A service brake caliper and the parking brake caliper (hereinafter called P caliper) are supported by a swing arm rotatably supporting the rear wheel. The service brake caliper and the P caliper are configured to brake the brake disc. In the rear brake device of the vehicle, the service brake caliper and the P caliper are fixed to a stay member, the stay member being supported by the swing arm. At least some of the service brake caliper and the P caliper are arranged in positions forward of a vehicle body and upward of the vehicle body from an axle of the rear wheel. A first boss and a third boss are arranged on a straight line passing through a center point of the axle.

Claims

1. A rear brake device of a vehicle comprising:

a brake disc that is configured to rotate integrally with a rear wheel of the vehicle, and

a service brake caliper and a parking brake caliper, the service brake caliper and the parking brake caliper being supported by a swing arm rotatably supporting the rear wheel, the service brake caliper and the parking brake caliper being configured to brake the brake disc,

wherein the service brake caliper and the parking brake caliper are fixed to a stay member, the stay member being supported by the swing arm,

at least some of the service brake caliper and the parking brake caliper are arranged in positions forward in a vehicle body and upward in the vehicle body relative to an axle of the rear wheel,

wherein the service brake caliper is provided with a first boss, the first boss being provided to fix the service brake caliper to the stay member,

the parking brake caliper is provided with a third boss, the third boss being provided to fix the parking brake caliper to the stay member,

the third boss is arranged below the first boss,

the service brake caliper and the parking brake caliper are disposed to overlap with each other in the longitudinal direction of the vehicle body and in the vertical direction of the vehicle body, and

the service brake caliper and the parking brake caliper are positioned above the upper surface of the swing arm in a side view of the vehicle body.

2. The rear brake device of a vehicle according to claim 1,

wherein at least some of the first boss and the third boss are positioned on the same straight line, the straight line being passed through a center point of the axle.

3. The rear brake device of a vehicle according to claim 2,

wherein the service brake caliper is provided with a second boss and a piston, the second boss being provided to fix the service brake caliper to the stay member, the piston being provided to push-press a brake pad to the brake disc,

the second boss is provided in a position opposed to the third boss of the parking brake caliper across the piston, and

the service brake caliper is configured to be swung to a side of the parking brake caliper with a portion of the first boss as the center of oscillation by removing a fixing member, the fixing member being provided to fix the second boss to the stay member.

4. The rear brake device of a vehicle according to claim 3,

wherein the stay member is provided with an engagement portion, the engagement portion being engaged with a positioning protrusion of the swing arm in a position forward in the vehicle body relative to the axle, and

the service brake caliper, the parking brake caliper and the engagement portion are arranged within a range of substantially 90 degrees on the basis of the center point of the axle in the order of the engagement portion, the parking brake caliper and the service brake caliper from a front side of the vehicle body.

5. The rear brake device of a vehicle according to claim 4,

wherein the swing arm is swingably supported with respect to a vehicle body frame of the vehicle,

a side of the vehicle body frame is mounted with a muffler, the muffler discharging combustion gas from an engine, and

the service brake caliper and the parking brake caliper are covered with the muffler in a side view of the vehicle body when the swing arm is swung.

6. The rear brake device of a vehicle according to claim 3,

wherein the swing arm is swingably supported with respect to a vehicle body frame of the vehicle,

a side of the vehicle body frame is mounted with a muffler, the muffler discharging combustion gas from an engine, and

the service brake caliper and the parking brake caliper are covered with the muffler in a side view of the vehicle body when the swing arm is swung.

7. The rear brake device of a vehicle according to claim 2,

wherein the stay member is provided with an engagement portion, the engagement portion being engaged with a positioning protrusion of the swing arm in a position forward in the vehicle body relative to the axle, and

the service brake caliper, the parking brake caliper and the engagement portion are arranged within a range of substantially 90 degrees on the basis of the center point of the axle in the order of the engagement portion, the parking brake caliper and the service brake caliper from a front side of the vehicle body.

8. The rear brake device of a vehicle according to claim 7,

wherein the swing arm is swingably supported with respect to a vehicle body frame of the vehicle,

a side of the vehicle body frame is mounted with a muffler, the muffler discharging combustion gas from an engine, and

the service brake caliper and the parking brake caliper are covered with the muffler in a side view of the vehicle body when the swing arm is swung.

9. The rear brake device of a vehicle according to claim 2,

wherein the swing arm is swingably supported with respect to a vehicle body frame of the vehicle,

a side of the vehicle body frame is mounted with a muffler, the muffler discharging combustion gas from an engine, and

the service brake caliper and the parking brake caliper are covered with the muffler in a side view of the vehicle body when the swing arm is swung.

10. The rear brake device of a vehicle according to claim 1,

wherein the stay member is provided with an engagement portion, the engagement portion being engaged with a positioning protrusion of the swing arm in a position forward in the vehicle body relative to the axle, and

the service brake caliper, the parking brake caliper and the engagement portion are arranged within a range of substantially 90 degrees on the basis of the center point of the axle in the order of the engagement portion, the parking brake caliper and the service brake caliper from a front side of the vehicle body.

11. The rear brake device of a vehicle according to claim 10,

wherein the swing arm is swingably supported with respect to a vehicle body frame of the vehicle,

a side of the vehicle body frame is mounted with a muffler, the muffler discharging combustion gas from an engine, and

the service brake caliper and the parking brake caliper are covered with the muffler in a side view of the vehicle body when the swing arm is swung.

12. The rear brake device of a vehicle according to claim 1,

wherein the swing arm is swingably supported with respect to a vehicle body frame of the vehicle,

a side of the vehicle body frame is mounted with a muffler, the muffler discharging combustion gas from an engine, and

the service brake caliper and the parking brake caliper are covered with the muffler in a side view of the vehicle body when the swing arm is swung.