Patent Application
20110286160
1. Technical Field
The present disclosure relates to hinge assemblies and, particularly, to a spring-loaded hinge assembly for foldable devices such as portable telephones and portable computers that can activated by button.
2. Description of Related Art
Some hinge assemblies are spring-loaded and are used to assist in opening the foldable parts of mobile phones, which generally include a cover section and a body section. This kind of hinge assembly includes threaded engagement of its parts and is relatively complicate to manufacture. In addition, the threaded structure needs to be made of high strength material, which is costly.
Therefore, there is room for improvement within the art.
Many aspects of the embodiments can be better understood with references to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present hinge assembly. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Referring to the drawings in detail,
The hinge assembly 100, in the embodiment illustrated, includes a button 10, a receiving seat 20, a control member 30, a return elastic member 40, a clutch member 50, a follower 60, a shaft 70, a main elastic member 80, a sleeve 90, and two washers 98.
The button 10 is substantially cylindrical, and includes a pressed end 110 and an opposite open end 120. Two symmetric arms 122 are formed on the open end 120. A hook 124 extends from each arm 122. The button 10, when pressed, can press the control member 30 received in the receiving seat 20 so that the control member 30 is unlocked.
Referring to
The control member 30 can be received in the receiving seat 20. The control member 30 includes a hollow body 32 and two extending arms 34 integrally formed together. The control member 30 surrounds the inner sleeve 24. The body 32 abuts against the end wall 232, and is exposed from the latching grooves 226. A block 342 radially extends from a distal end of each extension arm 34. The blocks 342 are received in the limiting grooves 238.
The return elastic member 40 is substantially cylindrical, and may be received in the control member 30 for returning the control member 30 to an original orientation it has been moved from.
Referring to
Referring also to
The shaft 70 extends through, in order, the receiving seat 20, the control member 30, the return elastic member 40, the clutch member 50, the follower 60, the main elastic member 80, and the sleeve 90. The shaft 70 forms a first locking end 72 and a second locking end 74 at opposite ends thereof.
The sleeve 90 is a substantially hollow cylinder, and includes an open end 92 and a partially-closed end 94. The partially-closed end 94 of the sleeve 90 defines a central hole 942. Opposite portions of the sleeve 90 are protruded outward to from two inner lengthwise troughs 97. The external surfaces of the troughs 97 engage with a cover section of the mobile phone.
The washers 98 are respectively engaged with the first locking end 72 and the second end 74 of the shaft 70.
In assembly, referring to
The follower 60 and the clutch member 50 are inserted into the shaft 70 from the second locking end 74. The blocks 342 are received in the slots 56. The peaks 6422 of the follower 60 abut against the projections 58 of the clutch member 50. The main elastic member 80 is fitted over the shaft 70, and one end of the main elastic member 80 abuts against the follower 60. After the above elements are assembled, the sleeve 90 is placed around the shaft 70. The open end 92 of the sleeve 90 is adjacent to the receiving seat 20. The partially-closed end 94 of the sleeve 90 resists the main elastic element 80. The latching portions 622 of the follower 60 are engaged in the trough 97 of the sleeve 90 to limit the rotation therebetween. The second locking end 74 is exposed from the central hole 942, and the other washer 98 is latched on the second locking end 74. Finally, the arms 122 of the button 10 are received in the retaining grooves 236 and abut against the control member 30. The hooks 124 are slidably received in the latching grooves 226 to prevent the button from separating from the receiving seat 20. Accordingly, the hinge assembly 100 is assembled.
Referring to
To open the mobile phone, a user presses and releases the button 10. When pressed, the button 10 moves along an axial direction of the shaft 70, the arms 122 of the button 10 then push the control member 30 to move away from the button 10 in the axial direction of the shaft 70. The control member 30 moves along the axis until the extension arms 34 of the control member 30 move out of the limiting grooves 238 of the receiving seat 20, compressing the return elastic member 40 toward the clutch member 50. The peaks 6422 of the follower 60 rotate relative to the projections 58 until the peaks 6422 slide to the first cam surface 244. Accordingly, the follower 50 automatically rotates relative to the receiving seat 20. Rotation of the follower 60 causes the clutch member 50 to rotate until the projections 58 are received in the valleys 6424. The elastic potential energy of the return elastic spring 40 then pushes the control member 30 to move toward the button 10. Furthermore, the follower 60 rotates the sleeve 90 so that the cover section of the mobile phone is opened. When the mobile phone is closed, the cover section rotates the sleeve 90. The second cam surface 642 rotates relative to the first cam surface 244 until contacting the projections 58 of the clutch member 50 and parting from the first cam surface 244. Thus, the hinge assembly is completely closed.
As described above, the present embodiment provides a hinge assembly 100 for use with various portable devices, beyond the mobile phone illustrated, and/or with other devices needing a hinge assembly that facilitates the achievement of fully open and fully closed positions.
It is believed that the present embodiments and their advantages will be understood from the foregoing description, and it will be apparent that different changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its material advantages, the examples hereinbefore described merely being preferred or exemplary embodiments of the disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201010176404.8 | May 2010 | CN | national |
