Hydraulic brake control apparatus

Patent metadata

Field	Value
Publication number	US-9403512-B2
Application number	US-53570309-A
Country	US
Kind code	B2
Filing date	Aug 5, 2009
Priority date	Aug 5, 2009
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A hydraulic brake control apparatus including a body portion, a hydraulic brake control mechanism, and a lever portion. The body portion has a first section configured to fit within an interior of a bar opening and a second section configured to be mounted outside of the interior of the bar opening. The hydraulic brake control mechanism includes a hydraulic brake pressure cylinder having a piston chamber therein, where at least a portion of the hydraulic brake control mechanism is housed within the first section of the body portion. The lever portion connected to the body portion and configured to actuate the hydraulic brake control mechanism. The body portion includes a port fluidly connected to the piston chamber by a conduit. The port is provided on the second section in order to allow bleeding of air from within the piston chamber when the body portion is mounted to the bar opening.

First claim

What is claimed is:

1. A hydraulic brake control apparatus comprising:
a body portion having a first section configured to fit within an interior of a bar opening of a handlebar and a second section configured to be mounted outside of the interior of the bar opening;
a hydraulic brake control mechanism including a hydraulic brake pressure cylinder having a piston chamber therein, at least a portion of said hydraulic brake control mechanism being housed within said first section of said body portion; and
a lever portion connected to said body portion and configured to actuate said hydraulic brake control mechanism,
wherein said body portion includes a port fluidly connected to said piston chamber by a conduit, said port being provided on said second section of said body portion and said conduit extending into the first section of the body portion within the interior of the bar opening in order to allow bleeding of air from within said piston chamber when said body portion is mounted to the bar opening, said port having an end opening arranged radially and axially outside of the handlebar having the bar opening.

2. The hydraulic brake control apparatus according to claim 1 , wherein said piston chamber is provided within said first section.

3. The hydraulic brake control apparatus according to claim 1 , wherein said conduit is provided at an inclined angle such that said conduit is inclined as compared to an axis of the bar opening when the body portion is mounted to the bar opening.

4. The hydraulic brake control apparatus according to claim 1 , wherein said port is provided on an outer surface of said second section.

5. The hydraulic brake control apparatus according to claim 1 , wherein said hydraulic brake control mechanism further includes a piston slidably provided within said piston chamber along an axis thereof.

6. The hydraulic brake control apparatus according to claim 5 , wherein said axis of said piston chamber is provided at an inclined angle such that said axis is inclined as compared to an axis of the bar opening when the body portion is mounted to the bar opening.

7. The hydraulic brake control apparatus according to claim 6 , wherein said piston chamber has an elevated area at one end thereof, and wherein said conduit is fluidly connected to said piston chamber at said elevated area.

8. The hydraulic brake control apparatus according to claim 1 , wherein the body includes an additional port fluidly connected to said piston chamber by the conduit.

9. The hydraulic brake control apparatus according to claim 8 , wherein said additional port is provided on said second section of said body portion, said additional port having an end opening arranged axially outside of the handlebar having the bar opening.

10. The hydraulic brake control apparatus according to claim 9 , wherein said end opening of said additional port not being arranged radially outside of the handlebar having the bar opening.

11. The hydraulic brake control apparatus according to claim 10 , wherein said end opening of said additional port facing said lever portion.

12. A hydraulic brake control apparatus comprising:
a body portion having a first section configured to fit within an interior of a bar opening and a second section configured to be mounted outside of the interior of the bar opening;
a hydraulic brake control mechanism including a hydraulic brake pressure cylinder having a piston chamber therein, at least a portion of said hydraulic brake control mechanism being housed within said first section of said body portion;
a lever portion connected to said body portion and configured to actuate said hydraulic brake control mechanism;
a mounting portion configured to slide on an inclined surface on an outer circumferential surface of said first section; and
at least one mounting screw configured to connect said mounting portion to said body portion,
wherein said at least one mounting screw is configured to slide said mounting portion along said inclined surface so as to push said mounting portion and a side of said first section against an inner surface of the bar opening in order to mount said body portion to the bar opening,
wherein said at least one mounting screw extends through an aperture in said second section, wherein said at least one mounting screw is threadably engaged to a threaded hole on said mounting portion, and
wherein said aperture in said second section is configured to receive said at least one mounting screw such that said at least one mounting screw moves in a direction perpendicular to a longitudinal axis of said at least one mounting screw when said mounting portion slides along said inclined surface.

Assignees

• Matsushita Tatsuya
• Nago Daisuke
• Shimano Kk

Inventors

• Matsushita Tatsuya
• Nago Daisuke

Classifications

• B60T7/102 Primary

  by means of a tilting lever · CPC title

• B60T11/165

  Single master cylinders for pressurised systems · CPC title

• B60T11/18

  Connection thereof to initiating means · CPC title