# US 2017/0282986 A1 · Electrically controllable seat post

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- Number: US 2017/0282986 A1
- Document ID: US20170282986A1
- Status: Published application
- Kind: A1
- Application number: 15/472,305
- Filed: 2017-03-29
- Published: 2017-10-05
- Earliest claimed: 2016-04-01
- Assignees: Giant Manufacturing Co., Ltd.
- Applicants: Giant Manufacturing Co., Ltd.
- Inventors: Shu-Yu JHOU; Che-Wei HSU; I-Teh CHEN
- Web page: https://patentgrep.com/patent/US20170282986A1

## CPC

- B62J 1/08: Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars (attaching seat pillars to cycle frames B62K19/36)
- F15B 15/202: {Externally-operated valves mounted in or on the actuator}
- B62J 2001/085: {Seat pillars having mechanisms to vary seat height, independently of the cycle frame}
- B62J: CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- F15B: SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR

## Abstract

An electrically controllable seat post is provided. The electrically controllable seat post includes a retractable rod and a switch actuator. The retractable rod includes a switch. The switch actuator is corresponding to the switch and includes a pushing member, an electromagnetic coil and a controller. The pushing member is assembled in the switch actuator, wherein the pushing member is controlled to move to open or close the switch. The electromagnetic coil generates a magnetic force by injecting a current therethrough, wherein the pushing member is moved by the magnetic force. The controller controls the switch actuator.

## Claims

### Claim 1

An electrically controllable seat post, comprising:
a retractable rod comprising a switch; and
a switch actuator corresponding to the switch and comprising:
a pushing member assembled in the switch actuator, wherein the pushing member is controlled to move to open or close the switch; and
an electromagnetic coil generating a magnetic force by injecting a current therethrough, wherein the pushing member is moved by the magnetic force; and
a controller controlling the switch actuator.

### Claim 2 (depends on 1)

The seat post of claim 1, wherein the retractable rod comprises a cylinder, the cylinder is a pneumatic cylinder, a hydraulic cylinder or a liquid-gas modularized cylinder, and the switch is located on the cylinder.

### Claim 3 (depends on 1)

The seat post of claim 1, wherein the retractable rod is a pneumatic rod, a hydraulic rod or a liquid-gas modularized rod.

### Claim 4 (depends on 1)

The seat post of claim 1, wherein the switch is a valve and the pushing member is moved to open or close the valve.

### Claim 5 (depends on 1)

The seat post of claim 1, wherein the switch is a button and the pushing member is moved to push the button.

### Claim 6 (depends on 1)

The seat post of claim 1, wherein the pushing member is rotated to open or close the switch.

### Claim 7 (depends on 6)

The seat post of claim 6, wherein the switch actuator comprises an inner surface, the inner surface comprises a spiral groove, the pushing member comprises a protruding member corresponding to the spiral groove, and when the pushing member is elongated or contracted, the protruding member slides in the spiral groove to rotate the pushing member synchronously.

### Claim 8 (depends on 1)

The seat post of claim 1, wherein the retractable rod has a rod axis, and a moving direction of the pushing member is parallel to the rod axis.

### Claim 9 (depends on 1)

The seat post of claim 1, wherein the retractable rod has a rod axis, and a moving direction of the pushing member is perpendicular to the rod axis.

### Claim 10 (depends on 1)

The seat post of claim 1, wherein a linkage mechanism is located between the pushing member and the switch.

### Claim 11 (depends on 1)

The seat post of claim 1, wherein the switch actuator is immediately adjacent to the retractable rod.

### Claim 12 (depends on 1)

The seat post of claim 1, wherein the electromagnetic coil is located in the retractable rod.

### Claim 13 (depends on 1)

The seat post of claim 1, wherein a hydraulic linkage mechanism is located between the pushing member and the switch.

### Claim 14 (depends on 1)

The seat post of claim 1, wherein the electromagnetic coil is located at an end of the retractable rod.

### Claim 15 (depends on 1)

The seat post of claim 1, further comprising a recovering member, wherein the recovering member is located between the electromagnetic coil and the pushing member for providing a recovering force.

### Claim 16 (depends on 6)

The seat post of claim 6, wherein the pushing member comprises at least one protruded limiting lever, an angle limitation mechanism is assembled outside of the limiting lever, the angle limitation mechanism opens at least one curved opening, the limiting lever is position-limitedly swung in the curved opening, and a rotation angle of the pushing member is constrained by the corporation between the limiting lever and the curved opening.