Damping hinge

• US 10,443,285 B2
• Filed: 11/16/2018
• Issued: 10/15/2019
• Est. Priority Date: 12/28/2017
• Status: Active Grant

• Current Assignee: Foxlink Image Technology Co. Ltd. (FIT Holding Co., Ltd.)
• Original Assignee: Foxlink Image Technology Co. Ltd. (FIT Holding Co., Ltd.)
• Inventors: Fang, Jing Hua, Lu, Pei Chun
• Primary Examiner(s): Mah, Chuck Y
• Application Number:
  US16/192,831
• Publication Number:
  US 20190203516A1
• Time in Patent Office: 333 Days
• CPC Class Codes: E05D 11/00 Additional features or accessories of hinges edge protecting devices E06B3/88
• CPC Class Codes: E05D 11/06 Devices for limiting the opening movement of hinges
• CPC Class Codes: E05D 3/02 with one pin
• CPC Class Codes: E05F 1/1261 for counterbalancing
• CPC Class Codes: E05F 3/20 in hinges
• CPC Class Codes: E05F 5/02 specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
• CPC Class Codes: E05Y 2201/212 Buffers
• CPC Class Codes: E05Y 2201/264 linear
• CPC Class Codes: E05Y 2201/412 for the final closing movement
• CPC Class Codes: E05Y 2201/638 Cams; Ramps
• CPC Class Codes: E05Y 2900/60 for other use
• CPC Class Codes: E05Y 2900/608 for machines
• CPC Class Codes: H04N 1/00554 Latches or hinges therefor
• CPC Class Codes: H04N 1/00976 Arrangements for regulating environment, e.g. removing static electricity

Abstract

A damping hinge includes a first joining part; a revolving part pivotably connected to the first joining part and being capable of revolving among a first position, a second position and a third position; a supporting module arranged within the first joining part for pressing the revolving part to keep the revolving part and the first joining part staying in a relative position; a second joining part fastened to the revolving part for connecting the upper cover; a first enforcement frame arranged on the first joining part; and a damping module including a damper holder pivotably connected to the second joining part, a damper consisting of a damper core fastened on the damper holder as a fixed end and an actuating portion as a free end being able to move up and down, a damper spring connected between the second joining part and the damper holder.

Claims

1. A damping hinge comprising:

a first joining part;

a revolving part pivotally connected on the first joining part to pivot in a first position, a second position and a third position relative to the first joining part;

a supporting module fastened within the first joining part for elastically pressing the revolving part to assure the revolving part and the first joining part to stay in the three positions;

a second joining part fastened to the revolving part and having an accommodating space disposed within;

a damping module arranged in the accommodating space and comprising a damper, a damper holder and a damper spring;

the damper having a damper core fastened on the damper holder and an actuating portion which is capable of moving up and down elastically;

a top of the damper holder pivotally connected on the second joining part; and

the damper spring connected between the second joining part and the top of the damper holder;

a first enforcement frame fastened on the first joining part;

wherein, during the time that the revolving part rotates from the first position to the second position, the first enforcement frame is separated from the actuating portion so as to assure the motion of the revolving part being undamped, and the damper core being held still by the damper holder and the damper spring;

wherein, during the time that the revolving part rotates from the second position to the third position, the first enforcement frame is engaged with the actuating portion so as to assure the motion of the revolving part being damped, and the damper holder bringing the damper core to swing in the accommodating space under an elastic force of the damper spring and a pressing force of the first enforcement frame.

2. The damping hinge as claimed in claim 1, wherein the first joining part has a first revolving hole arranged on an upper portion of the first joining part and the revolving part has a curve portion with a second revolving hole, and a revolving pin is arranged in the first revolving hole and the second revolving hole for holding the first joining part and the revolving part together to assure the first joining part and the revolving part revolving around the revolving pin.

3. The damping hinge as claimed in claim 1, wherein the revolving part comprises a part body with an upper notch disposed on an upper surface of the part body and the second joining part fastened on the revolving part, a bottom portion of the second joining part is disposed in the upper notch, and the second joining part comprises:

a first fixing hole being disposed on two walls of a front end of an upper portion of the accommodating space for holding a first fixing pin;

a second fixing hole being disposed on the two walls of a rear end of the upper portion of the accommodating space for holding a second fixing pin;

the damper holder having a holder body for holding the damper core, a connecting portion extended backward from an upper portion of the connecting portion, a hook disposed on a middle section of an upper portion of the connecting portion for hooking with the first fixing pin, a connecting hole arranged on a rear end of the connecting portion, and the damper spring hooked between the second fixing pin and the connecting hole.

4. The damping hinge as claimed in claim 3, wherein the part body comprises a bottom notch disposed on a bottom surface of the part body, a contacting portion extended forward from a middle section of a rear wall of the bottom notch, and a contacting groove disposed on a rear end of the actuating portion, the contacting portion being capable to swing in or out of the contacting groove, while the revolving part rotated to the first position, the contacting portion swinging into and engaging the contacting groove, while the revolving part rotated to the second position, the contacting portion swinging out of the contacting groove.

5. The damping hinge as claimed in claim 3, wherein the holder body comprises a first holding portion extended backward from two sides of a bottom portion of the holder body, a second holding portion extended backward from the bottom portion of the holder body, and a third holding portion extended backward from a bottom portion of the connecting portion, the damper core of the damper being held still by the first holding portion, the second holding portion and the third holding portion.

6. The damping hinge as claimed in claim 1, wherein the first joining part comprising a first holding notch disposed on an outer side of the upper portion of the first joining part, a second holding notch disposed on the upper portion of an front end of the first joining part, the first enforcement frame comprising a basement, a extending portion extended backward and upward from the basement, and an engaging portion extended backward from an upper portion of the basement;

the basement and the extending portion arranged in the first holding notch, the engaging portion fastened in the second holding notch.

7. The damping hinge as claimed in claim 1, wherein an accommodating space is disposed on a top surface of the first joining part, the supporting module comprises a supporting spring, a supporting body and a supporting pad, the supporting spring and the supporting body are disposed in the accommodating space of the first joining part, an elongated supporting groove being disposed on a top surface of the supporting body, a supporting spring holder being disposed on a bottom surface of the supporting body, the supporting pad being disposed in the supporting groove, the supporting spring being disposed in the supporting spring holder to press the supporting body elastically, and the supporting pad engaging with the curve portion.

8. The damping hinge as claimed in claim 7, wherein a bottom wall of the accommodating space of the first joining part has an extruding platform with an extruding pillars, the damping hinge further has a second enforcement frame with a basement plate and two side plates extended backward and upward from two sides of the basement plate, a hooking hole being arranged on the basement plate, two hooking portions being extended downward from both a front end and a rear end of the basement plate, the extruding pillow being inserted in the hooking hole, the hooking portions being hooked on a front surface and a rear surface of the extruding platform, and two upper portions of the side plates being fastened on the first joining part and the first enforcement frame.