# US 8,783,669 B2 · Push-push type stylus eject mechanism

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- Number: US 8,783,669 B2
- Document ID: US8783669B2
- Status: Granted
- Kind: B2
- Application number: 12/874,229
- Filed: 2010-09-02
- Published: 2011-06-23
- Granted: 2014-07-22
- Earliest claimed: 2009-12-23
- Assignees: Compal Electronics, Inc.
- Applicants: Yu-Yuan Lin
- Inventors: Yu-Yuan Lin
- Web page: https://patentgrep.com/patent/US8783669B2

## CPC

- G06F 3/03545: {Pens or stylus}
- G06F 2200/1632: Pen holder integrated in the computer
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A push-push type stylus eject mechanism includes a rail disposed on a substrate, a hook disposed on the substrate, a slide device sliding relative to the substrate, an elastic device connecting the slide device and the hook, and a guide arm having an end pivoted on the slide device and another end having a pin. The slide device could couple to a stylus. The slide device has a pressing element. The rail has a first positioning point and a second positioning point. The pin is moved between the first positioning point and the second positioning point when the stylus is pushed, and the guide arm is pressed by the pressing element to prevent the pin releasing from the rail.

## Claims

### Claim 1

A push-push type stylus eject mechanism comprising:
a rail disposed on a substrate, the rail comprising a first positioning point and a second positioning point;
a hook disposed on the substrate;
a slide device sliding relative to the substrate, the slide device comprising:
a coupling portion for coupling to a stylus; and
a pressing element;
an elastic device connecting the slide device and the hook; and
a guide arm having an end pivoted on the slide device and another end having a pin, wherein the pin is moved between the first positioning point and the second positioning point when the stylus is pushed, and the guide arm is pressed by the pressing element to prevent the pin releasing from the rail.

### Claim 2 (depends on 1)

The push-push type stylus eject mechanism of claim 1, wherein the rail is a heart-shaped rail.

### Claim 3 (depends on 1)

The push-push type stylus eject mechanism of claim 1, further comprising a protrusion disposed on the substrate, and the slide device comprising a slot, wherein the protrusion is located in the slot and the slot slides relative to the protrusion when the slide device slides relative to the substrate.

### Claim 4 (depends on 3)

The push-push type stylus eject mechanism of claim 3, wherein the slot is a T-shaped slot.

### Claim 5 (depends on 1)

The push-push type stylus eject mechanism of claim 1, wherein the coupling portion comprises a plurality of clamping arms to couple to the stylus.

### Claim 6 (depends on 5)

The push-push type stylus eject mechanism of claim 5, wherein each clamping arm has a salient, and the stylus has an annular groove, and the salients are coupled to the annular groove.

### Claim 7 (depends on 1)

The push-push type stylus eject mechanism of claim 1, wherein the shape of the pressing element is V-shaped or U-shaped.

### Claim 8 (depends on 1)

The push-push type stylus eject mechanism of claim 1, further comprising a containing chamber disposed on the substrate to contain the stylus.

### Claim 9 (depends on 1)

The push-push type stylus eject mechanism of claim 1, wherein the substrate comprising a housing of an electronic apparatus.

### Claim 10 (depends on 1)

The push-push type stylus eject mechanism of claim 1, wherein the elastic device is a spring.