Self-locked hinge device

• US 7,299,525 B2
• Filed: 04/28/2004
• Issued: 11/27/2007
• Est. Priority Date: 08/27/2003
• Status: Expired due to Fees

• Current Assignee: Avison Incorporated
• Original Assignee: Avision, Inc.
• Inventors: Chang, Yu-Lun
• Primary Examiner(s): Mitchell; Katherine
• Assistant Examiner(s): Menezes; Marcus
• Application Number:
  US10/833,008
• Publication Number:
  US 20050044664A1
• Time in Patent Office: 1,308 Days
• Field of Search: 163/66, 163/67, 163/71, 163/27, 163/57, 163/53, 163/77, 163/52, 16348-350, 355/75, 399/379
• US Class Current: 16/327
• CPC Class Codes: E05D 3/12 with two parallel pins and one arm
• CPC Class Codes: H04N 1/00543 Allowing easy access, e.g. for maintenance or in case of paper jam H04N1/00538 takes precedence
• CPC Class Codes: H04N 1/00554 Latches or hinges therefor
• CPC Class Codes: H04N 2201/0094 Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception

Abstract

A self-locked hinge device includes a hinge body, a first mounting plate, a second mounting plate and a locking mechanism, The first mounting plate is hinged to a first end of the hinge body, and the second mounting plate is hinged to a second end of the hinge body. The locking mechanism is driven by the second mounting plate when the second mounting plate is moved and incapacitates the first mounting plate from moving relatively to the hinge body when the second mounting plate is rotated to a predetermined position relative to the hinge body. A multi-function peripheral using the self-locked hinge device is also provided.

Claims

1. A self-locked hinge device, comprising:

a hinge body having a first end and a second end;

a first mounting plate hinged to the first end;

a second mounting plate hinged to the second end; and

a locking mechanism, driven by the second mounting plate when the second mounting plate is moved, for incapacitating the first mounting plate from moving relatively to the hinge body when the second mounting plate is rotated to a predetermined position relative to the hinge body, wherein;

a first hinge shaft between the first mounting plate and the hinge body and a second hinge shaft between the second mounting plate and the hinge body are located on the same plane;

the locking mechanism comprises;

a follower link, which moves with a relative rotation between the second mounting plate and the hinge body, for selectively fixing the first hinge shaft; and

a cam, which is mounted to the second mounting plate, for contacting and moving the follower link;

the cam is a form-closed cam; and

the follower link is formed with a first opening and a second opening in communication with the first opening, and the first hinge shaft is capable of rotating in the first opening but incapable of rotating in the second opening.

2. A self-locked binge device comprising:

a hinge body having a first end and a second end;

a first mounting plate hinged to the first end;

a second mounting plate hinged to the second end; and

a locking mechanism, driven by the second mounting plate when the second mounting plate is moved, for incapacitating the first mounting plate from moving relatively to the hinge body when the second mounting plate is rotated to a predetermined position relative to the hinge body, wherein;

a first hinge shaft between the first mounting plate and the hinge body and a second hinge shaft between the second mounting plate and the hinge body are located on the same plane;

the locking mechanism comprises;

a follower link, which moves with a relative rotation between the second mounting plate and the hinge body for selectively fixing the first hinge shaft; and

a cam, which is mounted to the second mounting plate, for contacting and moving the follower link;

the locking mechanism further comprises a spring connecting the follower link to the cam, which is a force-closed cam; and

the follower link is formed with a first opening and a second opening in communication with the first opening, and the first hinge shaft is capable of rotating in the first opening but incapable of rotating in the second opening.

3. A self-locked hinge device, comprising:

a hinge body having a first end and a second end;

a first mounting plate hinged to the first end;

a second mounting plate hinged to the second end; and

a locking mechanism, driven by the second mounting plate when the second mounting plate is moved, for incapacitating the first mounting plate from moving relatively to the hinge body when the second mounting plate is rotated to a predetermined position relative to the hinge body, wherein;

a first hinge shaft between the first mounting plate and the hinge body and a second hinge shaft between the second mounting plate and the hinge body are located on different planes;

the locking mechanism comprises;

a follower link, which moves with a relative rotation between the second mounting plate and the hinge body, for selectively fixing the first hinge shaft; and

a cam, which is mounted to the second mounting plate, for contacting and moving the follower link;

the cam is a form-closed cam; and

the follower link is formed with a first opening and a second opening in communication with the first opening, and the first hinge shaft is capable of rotating in the first opening but incapable of rotating in the second opening.

4. A self-locked hinge device, comprising:

a hinge body having a first end and a second end;

a first mounting plate hinged to the first end;

a second mounting plate hinged to the second end; and

a locking mechanism, driven by the second mounting plate when the second mounting plate is moved, for incapacitating the first mounting plate from moving relatively to the hinge body when the second mounting plate is rotated to a predetermined position relative to the hinge body, wherein;

a first hinge shaft between the first mounting plate and the hinge body and a second hinge shaft between the second mounting plate and the hinge body are located on different planes;

the locking mechanism comprises;

a follower link, which moves with a relative rotation between the second mounting plate and the hinge body, for selectively fixing the first hinge shaft; and

a cam, which is mounted to the second mounting plate, for contacting and moving the follower link;

the locking mechanism further comprises a spring connecting the follower link to the cam, which is a force-closed cam; and

the follower link is fanned with a first opening and a second opening in communication with the first opening, and the first hinge shaft is capable of rotating in the first opening but incapable of rotating in the second opening.