Multistage friction hinge

• US 10,606,322 B2
• Filed: 01/05/2018
• Issued: 03/31/2020
• Est. Priority Date: 06/30/2015
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Inventors: Siddiqui, Kabir
• Primary Examiner(s): Delisle, Roberta S
• Application Number:
  US15/863,570
• Publication Number:
  US 20180129253A1
• Time in Patent Office: 816 Days
• Field of Search: 16342, 16337, 16338, 16339, 16340, 16341, 248351, 248682, 36167927, 36167928, 3616793, 36167959
• CPC Class Codes: E05D 1/04 with guide members shaped as circular arcs
• CPC Class Codes: E05D 11/082 with substantially radial friction, e.g. cylindrical friction surfaces
• CPC Class Codes: E05D 11/084 the friction depending on direction of rotation or opening angle of the hinge
• CPC Class Codes: E05D 2011/085 the friction depending on the opening angle
• CPC Class Codes: E05Y 2900/606 for electronic devices
• CPC Class Codes: F16M 11/10 around a horizontal axis F16M11/12 takes precedence
• CPC Class Codes: F16M 13/005 integral with the apparatus or articles to be supported
• CPC Class Codes: F16M 2200/022 by friction
• CPC Class Codes: F16M 2200/024 by positive interaction, e.g. male-female connections
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• CPC Class Codes: G06F 1/166 related to integrated arrangements for adjusting the position of the main body with respect to the supporting surface, e.g. legs for adjusting the tilt angle
• CPC Class Codes: G06F 1/1679 for locking or maintaining the movable parts of the enclosure in a fixed position, e.g. latching mechanism at the edge of the display in a laptop or for the screen protective cover of a PDA G06F1/1681 takes precedence
• 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

Abstract

A multistage friction hinge is described. In at least some embodiments, the described hinge enables a support component to be adjustably attached to an apparatus. According to various embodiments, a hinge includes different activity stages where movement of the hinge is based on different activity mechanisms. For instance, the hinge includes different sets of components that form different friction engines that provide resistance to rotational and/or pivoting movement of the hinge.

Claims

1. A hinge comprising:

a first friction assembly configured to provide resistance to movement of the hinge across a first angle range; and

a second friction assembly configured to provide resistance to movement of the hinge across a second angle range;

a hinge frame including at least one ring guide;

an upper hinge ring slidably engaged with the at least one ring guide;

a lower hinge ring interlocked with the upper hinge ring and including a lower ring spring disposed on an inner surface of the lower hinge ring; and

a cam positioned at least in part between the upper hinge ring and the lower hinge ring such that when the hinge is positioned within the first angle range, the cam engages with the lower ring spring to form at least a part of the first friction assembly.

2. A hinge as described in claim 1, wherein the second friction assembly provides greater resistance to movement of the hinge than does the first friction assembly.

3. A hinge as described in claim 1, wherein the first friction assembly is based on frictional interaction between a first set of components of the hinge, and wherein the second friction assembly is based on frictional interaction between a second set of components of the hinge, the second set of components being different than the first set of components.

4. A hinge as described in claim 1, wherein the hinge comprises:

a friction bar pivotably attached to the hinge frame and positioned such that a first portion of the friction bar is in contact with the lower hinge ring; and

a bar spring disposed within the hinge frame to apply biasing force to a second portion of the friction bar to cause the first portion of the friction bar to bear against the lower hinge ring;

wherein when the cam is positioned within the second angle range, frictional force applied by the first portion of the friction bar against the lower hinge ring resists movement of the cam relative to the hinge frame and forms at least a part of the second friction assembly.

5. A hinge as described in claim 4, wherein the resistance to movement of the hinge across the first angle range is based at least on the bar spring.

6. A hinge as described in claim 4, wherein the resistance to movement of the hinge across the second angle range is based at least on a length of the friction bar.

7. A hinge as described in claim 1, wherein the hinge comprises:

a friction bar pivotably attached to the hinge frame and positioned such that a first portion of the friction bar is in contact with the lower hinge ring; and

a bar spring disposed within the hinge frame to apply biasing force to a second portion of the friction bar to cause the first portion of the friction bar to bear against the lower hinge ring;

wherein the cam includes a spring biased locking tab such that when the cam transitions from the first angle range to the second angle range, the locking tab engages with the upper hinge ring and movement of the cam within the second angle range causes corresponding movement of the upper hinge ring and the lower hinge ring, and frictional force applied by the first portion of the friction bar against the lower hinge ring resists movement of the cam relative to the hinge frame and forms at least a part of the second friction assembly.

8. A hinge as described in claim 1, wherein the cam includes a spring groove such that the lower ring spring does not engage the cam in the first angle range.

9. A hinge as described in claim 1, wherein the resistance to movement of the hinge across the second angle range is based at least on the lower ring spring.

10. A hinge as described in claim 1, wherein resistance to movement of the hinge across a third angle range is less than the resistance to movement of the hinge in the first angle range and in the second angle range.

11. A hinge comprising:

a hinge frame;

an upper hinge ring slidably engaged with the hinge frame;

a lower hinge ring interlocked with the upper hinge ring; and

a cam positioned at least in part between the upper hinge ring and the lower hinge ring, the cam including a spring biased locking tab such that when the cam transitions from a first angle range of the hinge to a second angle range of the hinge, the locking tab engages with the upper hinge ring and movement of the cam within the second angle range causes corresponding movement of the upper hinge ring and the lower hinge ring from the first angle range to the second angle range.

12. A hinge as recited in claim 11, wherein resistance to movement of the hinge is greater in the second angle range than in the first angle range.

13. A hinge as recited in claim 11, wherein resistance to movement of the hinge increases as the hinge moves from the first angle range to the second angle range.

14. A hinge as recited in claim 11, wherein resistance to movement of the hinge in the first angle range is based on spring force from a first spring of the hinge, and wherein resistance to movement of the hinge in the second angle range is based on spring force from a second spring of the hinge.

15. A hinge as recited in claim 11, wherein the hinge frame includes a ring guide, and wherein the upper hinge ring is slidably engaged with the ring guide.

16. A hinge as described in claim 15, wherein the upper hinge ring includes a ring channel for engaging with the ring guide.

17. A hinge as recited in claim 11, further comprising:

a friction bar pivotably attached to the hinge frame and positioned such that a first portion of the friction bar is in contact with the lower hinge ring; and

a bar spring disposed within the hinge frame to apply biasing force to a second portion of the friction bar to cause the first portion of the friction bar to bear against the lower hinge ring.

18. A hinge as recited in claim 11, further comprising:

a friction bar pivotably attached to the hinge frame and positioned such that a first portion of the friction bar is in contact with the lower hinge ring; and

a bar spring disposed within the hinge frame to apply biasing force to a second portion of the friction bar to cause the first portion of the friction bar to bear against the lower hinge ring,

wherein when the cam is positioned within the second angle range, frictional force applied by the first portion of the friction bar against the lower hinge ring resists movement of the cam relative to the hinge frame.

19. A hinge as described in claim 11, wherein the upper hinge ring includes upper ring teeth, the lower hinge ring includes lower ring teeth, and the upper ring teeth engage with the lower ring teeth.

20. A hinge as described in claim 11, wherein the upper hinge ring includes a tab catch for engaging with the locking tab.