Asymmetrical resistant hinge set

• US 8,424,160 B2
• Filed: 08/11/2010
• Issued: 04/23/2013
• Est. Priority Date: 08/11/2010
• Status: Expired due to Fees

• Current Assignee: E-Lead Electronic Co., Ltd.
• Original Assignee: E Lead Electronic Company Limited
• Inventors: Chen, Stephen
• Primary Examiner(s): DELISLE, ROBERTA S
• Application Number:
  US12/854,290
• Publication Number:
  US 20120036679A1
• Time in Patent Office: 986 Days
• Field of Search: 16/75, 162/77, 162/78, 162/80, 162/84, 162/85, 162/95, 162/97, 163/03, 163/08, 163/12
• US Class Current: 16/278
• CPC Class Codes: E05D 11/084 the friction depending on direction of rotation or opening angle of the hinge
• CPC Class Codes: E05Y 2800/00 Details, accessories and auxiliary operations not otherwise provided for
• CPC Class Codes: E05Y 2999/00 Subject-matter not otherwise provided for in this subclass
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1681 Details related solely to hinges hinge details related to the transmission of signals or power are classified in G06F1/1683
• CPC Class Codes: G06F 2200/1634 Integrated protective display lid, e.g. for touch-sensitive display in handheld computer

Abstract

An asymmetrical resistant hinge set includes at least a resistant hinge and an elastic element coaxially positioned. The resistant hinge is hinged on a first pivotal means located on the bottom side of a body. The elastic element provides action forces on the resistant hinge and one-way resistance to generate an asymmetrical hinge effect with a greater resistance in one direction and a smaller resistance in another direction when a support lid is flipped in forward and reverse directions to reduce the resistance of the resistant hinge. As a result, when the support lid is flipped to a selected angle it still can bear the weight of the body of a portable electronic device at the anchored position without drifting.

Claims

1. An asymmetrical resistant hinge set comprising at least one resistant hinge and an elastic element positioned coaxially;

the resistant hinge being hinged on a first pivotal means located on a bottom side of a body, the elastic element providing an action force on the resistant hinge and a one-way resistant force so that a greater resistance is generated in one direction and a smaller resistance is generated in another direction when a support lid is flipped forwards and backwards to form an asymmetrical hinge effect to reduce resistance of the resistant hinge;

wherein the resistant hinge includes an anchor seat, an anchor slider, a moving slider, a spring, a pintle, a pintle sleeve and a nut, the pintle having a stem to hold the spring, moving slider, anchor slider and anchor seat in this order and being fastened by the nut; and

the pintle sleeve includes a coupling portion at one end to hold the elastic element and a latch slot adjacent to the coupling portion wedged in by a first leg of the elastic element and an insertion trough at another side to hold a fastening end of the pintle.

2. The asymmetrical resistant hinge set of claim 1, wherein the elastic element is a torsional spring.

3. The asymmetrical resistant hinge set of claim 1, wherein the elastic element is a torsional reed.

4. The asymmetrical resistant hinge set of claim 1, wherein the elastic element includes at least one elastic member.