Tire pressure gauge for bicycle

Patent metadata

Field	Value
Publication number	US-10245907-B2
Application number	US-201715618192-A
Country	US
Kind code	B2
Filing date	Jun 9, 2017
Priority date	Jun 9, 2017
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A tire pressure gauge for a bicycle is provided. The tire pressure gauge is fastened to an air valve and includes a connector assembly and a gauge assembly. The connector assembly includes a main body and an air-tight member. The main body includes a front member and a connecting member. The main body includes an opening portion, a first thread hole, and an accommodating channel, in which the opening portion and the first thread hole extend inwards, and the accommodating channel is disposed between the opening portion and the first thread hole. The gas-tight member is disposed in the accommodating channel by passing through the opening portion. When disposed in the accommodating channel, the air-tight member can be squeezed by the inner surface of the accommodating channel, and a gap exists between the air-tight member and the accommodating channel in the axial direction.

First claim

What is claimed is:

1. A tire pressure gauge for a bicycle, wherein the tire pressure gauge is fastened to an air valve and measures tire pressure at any time during the travel of the bicycle, the tire pressure gauge comprising:
a connector assembly made of an abrasion-resistant material, the connector assembly including:
a main body including:
a front member having a connection end and an extension end, the front member including an opening portion, a first thread hole, and an accommodating channel, wherein the opening portion is located at the connection end for being connected with the air valve, the opening portion extending inwards, the first thread hole is located at the extension end, and the accommodating channel is located between the opening portion and the first thread hole, in which the opening portion, accommodating channel, and the first thread hole are coaxial and communicate with each other, and in which the axial depth of the opening portion is smaller than that of the accommodating channel, and the axial depth of the accommodating channel is smaller than that of the first thread hole; and
a connecting member which is connected to an end of the front member and integrally formed therewith, the connecting member including a second thread hole communicating with the first thread hole, being coaxial therewith, and having an inner diameter the same as the inner diameter of the first thread hole; and
a gas-tight member disposed in the accommodating channel by passing through the opening portion, the gas-tight member being made of an abrasion-resistant rubber and having an outer diameter smaller than that of the accommodating channel, a thickness smaller than the axial depth of the accommodating channel, and an inner diameter smaller than that of the second thread hole; and

a gauge assembly disposed at an end of the connecting member opposite the other end where the connecting member is connected to the front member, the gauge assembly including a wireless transmission unit and a processing unit, wherein the processing unit measures the pressure of the air entering the gauge assembly and generates an tire pressure information correspondingly, and wherein the wireless transmission unit is electrically connected to the processing unit and an external communication device so as to transmit the tire pressure information to the external communication device,

wherein a part of the air valve is engaged with the first thread hole and the second thread hole, and the gas-tight member is closely engaged with the part of the air valve that is in the accommodating channel.

2. The tire pressure gauge according to claim 1 , wherein the main body of the connector assembly is integrally made of titanium alloy.

3. The tire pressure gauge according to claim 2 , wherein the gas-tight member has a Shore hardness of no less than 65.

4. The tire pressure gauge according to claim 1 , wherein a thread structure is formed on the circumference of an end portion of the connecting member opposite the front member.

5. The tire pressure gauge according to claim 1 , wherein the inner diameter of the opening portion ranges from 6.2 mm to 6.3 mm.

6. The tire pressure gauge according to claim 1 , wherein the difference between the inner diameter of the accommodating channel and the outer diameter of the gas-tight member is 0.5 mm.

7. The tire pressure gauge according to claim 1 , wherein the difference between the axial depth of the accommodating channel and the thickness of the gas-tight member is 0.2 mm.

8. The tire pressure gauge according to claim 1 , wherein the axial depth of the accommodating channel is 4 to 5 times larger than that of the opening portion.

9. The tire pressure gauge according to claim 1 , wherein the inner diameter of the accommodating channel is 1.2 to 1.3 times larger than that of the opening portion.

10. The tire pressure gauge according to claim 1 , wherein the inner diameter of the opening portion is 1.3 times larger than that of the first thread hole.

Assignees

• Auden Techno Corp

Inventors

• Lin Tsan-Chen

Classifications

• B60C23/0479

  Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations · CPC title

• B60C23/0496 Primary

  Valve stem attachments positioned outside of the tyre chamber · CPC title

• B60C29/066

  Valve caps · CPC title

• B60C23/006

  having two wheels only · CPC title