Support arm assembly

• US 8,794,579 B2
• Filed: 06/02/2006
• Issued: 08/05/2014
• Est. Priority Date: 06/03/2005
• Status: Active Grant

• Current Assignee: Steelcase Incorporated
• Original Assignee: Steelcase Incorporated
• Inventors: Sturman, Lane, Tatman, Dan R., Peterson, Erik R., Lok, Greg
• Primary Examiner(s): BAXTER, GWENDOLYN WRENN
• Application Number:
  US11/445,804
• Publication Number:
  US 20070040084A1
• Time in Patent Office: 2,986 Days
• Field of Search: 248/276.1, 248/282.1, 248/284.1, 248/286.1, 248/918, 248/921, 248/922, 248/160
• US Class Current: 248/284.1
• CPC Class Codes: F16M 11/041 Allowing quick release of the apparatus
• CPC Class Codes: F16M 11/105 the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
• CPC Class Codes: F16M 11/14 with ball-joint ball-jointed hinges F16C11/06 ; adjustable mountings employing universal joints for lighting devices F21V21/26 - F21V21/30
• CPC Class Codes: F16M 11/2014 around a vertical axis F16M11/2035 takes precedence
• CPC Class Codes: F16M 11/2064 for tilting and panning F16M11/2078 takes precedence
• CPC Class Codes: F16M 11/2092 comprising means allowing depth adjustment, i.e. forward-backward translation of the head relatively to the undercarriage
• CPC Class Codes: F16M 11/24 changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each otherF16M11/42 takes precedence
• CPC Class Codes: F16M 13/022 repositionable
• CPC Class Codes: F16M 2200/02 Locking means
• CPC Class Codes: F16M 2200/044 for balancing rotational movement of the undercarriage
• CPC Class Codes: F16M 2200/063 Parallelogram arms
• CPC Class Codes: F16M 2200/065 with a special structure, e.g. reinforced or adapted for space reduction

Abstract

An assembly for supporting a device for movement between several positions, the assembly comprising a first four-bar subassembly including proximate and distal ends and a second four-bar subassembly including proximate and distal ends and first and second link members that pivot about substantially parallel axis, the distal end of the first four-bar subassembly linked to the proximate end of the second four-bar subassembly for rotation about an additional axis that is substantially perpendicular to the parallel axis.

Claims

1. An assembly for supporting a device for movement between several positions, the assembly comprising:

a first four-bar subassembly including proximate and distal ends;

a pan-tilt subassembly including first and second end members at proximate and distal ends and first and second link members that pivot about substantially parallel axis at the first and second end members, respectively, the distal end of the first four-bar subassembly linked to the proximate end of the pan-tilt subassembly for rotation about an additional axis that is substantially perpendicular to the parallel axis, the distal end of the pan-tilt subassembly linked to the device;

a base and a third arm subassembly between the base and the device, the third arm subassembly linked between the base and the first four-bar sub-assembly;

wherein the third arm subassembly includes first and second curved sections and a substantially straight section between the first and second curved sections and wherein oppositely facing ends of the first and second curved sections extend along substantially parallel first and second trajectories.

2. The apparatus of claim 1 wherein an elongated member extends generally along an axis that forms first and second angles with each of the first and second trajectories, respectively, where each of the first and second angles is between 5 and 30 degrees.

3. The apparatus of claim 2 wherein the elongated member is tubular.

4. The apparatus of claim 1 wherein the first ends of the first and second link members are mounted closer together than the second ends of the first and second link members.

5. The apparatus of claim 1 wherein the first four-bar subassembly includes proximate and distal ends, each of the base and the distal end of the third arm subassembly form couplers of a first construction and each of the proximate end of the first four-bar subassembly and the proximate end of the third arm subassembly form a coupler of a second construction, each of the second construction couplers configured to couple with either of the first construction couplers.

6. The apparatus of claim 1 wherein the device is a flat panel display.

7. An assembly for supporting a device for movement between several positions, the assembly comprising:

a first four-bar subassembly including proximate and distal ends;

a pan-tilt subassembly including first and second end members at proximate and distal ends and first and second link members that pivot about substantially parallel axis at the first and second end members, respectively, the distal end of the first four-bar subassembly linked to the proximate end of the pan-tilt subassembly for rotation about an additional axis that is substantially perpendicular to the parallel axis;

wherein the first four-bar subassembly includes proximate and distal ends, each of the base and the distal end of the second arm subassembly form couplers of a first construction and each of the proximate end of the first four-bar subassembly and the proximate end of the second arm subassembly form a coupler of a second construction, each of the second construction couplers configured to couple with either of the first construction couplers; and

wherein each of the couplers of the first construction forms one of a cavity and a post and each of the couplers of the second construction forms the other of a cavity and a post and wherein the posts are dimensioned to be receivable within the cavities to facilitate rotation about common cup-post axis.

8. A variably configurable kit assembly for adjustably supporting a device, the assembly comprising:

a base forming a first coupler of a first construction;

an arm assembly linking the base to the device, the arm assembly comprising;

a first arm subassembly including proximate and distal ends and forming a first coupler of a second construction at the proximate end and a second coupler of the first construction at the distal end; and

a second arm subassembly including proximate and distal ends and forming a second coupler of the second construction at the proximate end and supporting the device at the distal end, wherein the second arm subassembly includes at least one four-bar subassembly;

wherein, each of the second construction couplers is configured to be couplable to either of the first construction couplers.

9. The assembly of claim 8 wherein each of the first construction couplers forms one of a cup and a post and each of the second construction couplers forms the other of a cup and a post and wherein the posts are dimensioned to be receivable within the cups to facilitate rotation about an axis common to the coupled post and cup.

10. The assembly of claim 9 wherein each of the first construction of couplers forms a cup that narrows from an upper end to a lower end and each of the second construction couplers forms a post that narrows from an upper end to a lower end.

11. The assembly of claim 10 further including a frusto-conical bushing between each pair of adjacent first and second couplers.

12. The assembly of claim 8 wherein the arm assembly can be configured with the proximate ends of the first arm subassembly and the second arm subassembly coupled to the base and the distal end of the first arm subassembly, respectively and wherein the arm assembly can be configured with the proximate end of the second arm subassembly coupled to the base.

13. The assembly of claim 8 further including a device mount subassembly including proximal and distal ends, the mount subassembly forming a first coupler of a third construction at the distal end, the second arm subassembly forming a first coupler of a fourth construction configured to be couplable to a coupler of the third construction.

14. The assembly of claim 13 further including a third arm subassembly including proximate and distal ends and forming a third coupler of the second construction at the proximate end and a second coupler of the fourth construction.

15. The assembly of claim 14 wherein each of the second and the third arm subassemblies has a length dimension and wherein the length dimension of the second arm subassembly is greater than the length dimension of the third arm subassembly.

16. A variably configurable kit assembly for adjustably supporting a device, the assembly comprising:

a base forming a first coupler of a first construction;

an arm assembly linking the base to the device, the arm assembly comprising;

a first arm subassembly including proximate and distal ends and forming a first coupler of a second construction at the proximate end and a second coupler of the first construction at the distal end; and

a second arm subassembly including proximate and distal ends and forming a second coupler of the second construction at the proximate end and supporting the device at the distal end;

wherein, each of the second construction couplers is configured to be couplable to either of the first construction couplers;

wherein the base includes a first base for mounting a work surface and wherein the assembly further includes at least a second base for mounting to a vertical surface wherein the second base forms an additional coupler of the first base configured to optionally receive any of the couplers of the first base.

17. The assembly of claim 16 wherein the second base coupler includes a clip for mounting the second base to a slat wall.

18. The assembly of claim 17 wherein the first arm subassembly includes a four-bar mechanism and the second arm subassembly includes a fixed member.

19. An arm assembly for adjustably supporting a flat panel display, the assembly comprising:

a first arm member including proximate and distal ends and including a surface that forms one of an open ended frusto-conical cavity and a frusto-conical post at the distal end;

a second arm member including proximate and distal ends and including a surface that forms the other of the open ended frusto-conical cavity and the frusto-conical post at the proximal end, the display supported by the distal end of the second arm member; and

wherein the frusto-conical post is at least partially received within the open ended frusto-conical cavity with the post forming surface facing the cavity facing surface and for rotation about an axis;

a bushing having internal and external surfaces where the internal surface defines a frusto-conical shape that is substantially similar to the shape of the surface forming the post and the external surface defines a frusto-conical shape that is substantially similar to the shape of the surface forming the cavity, the bushing positioned between the surfaces that form the post and cavity, and

wherein at least one of the internal surface, the external surface and one of the surfaces that forms the cavity and that forms the post includes at least one malleable and deformable rib.

20. The assembly of claim 19 wherein the internal surface of the bushing is generally a mirror image of the external surface of the bushing.

21. The assembly of claim 19 wherein the bushing further includes at least one malleable and deformable rib that extends from at least one of the internal and external surfaces.

22. The assembly of claim 21 wherein the bushing includes a plurality of malleable and deformable ribs that extend from at least one of the internal and external surfaces.

23. The assembly of claim 22 wherein the ribs extend from the external surface.

24. The assembly of claim 19 wherein the bushing is formed of plastic.

25. The assembly of claim 19 wherein the first arm member forms the cavity at the distal end.

26. The assembly of claim 19 wherein the cavity and the post are a first cavity and a first post, the first arm member also including a surface that forms one of a second open ended frusto-conical cavity and a second frusto-conical post at the proximate end, the assembly further including a base member that forms the other of a second open ended frusto-conical cavity and a second frusto-conical post at the proximate end and a second bushing having internal and external surfaces where the internal surface defines a frusto-conical shape that is substantially similar to the shape of the surface forming the second post and the external surface defines a frusto-conical shape that is substantially similar to the shape of the surface forming the second cavity wherein, the second post is at least partially receivable within the second cavity with the second bushing between the surfaces that form the second post and second cavity and for rotation about an axis.

27. An arm assembly for adjustably supporting a flat panel display, the assembly comprising:

a first arm member including proximate and distal ends and including a surface that forms one of an open ended frusto-conical cavity and a frusto-conical post at the distal end;

a second arm member including proximate and distal ends and including a surface that forms the other of the open ended frusto-conical cavity and the frusto-conical post at the proximal end, the display supported by the distal end of the second arm member; and

wherein the frusto-conical post is at least partially received within the open ended frusto-conical cavity with the post forming surface facing the cavity facing surface and for rotation about an axis;

a bushing having internal and external surfaces where the internal surface defines a frusto-conical shape that is substantially similar to the shape of the surface forming the post and the external surface defines a frusto-conical shape that is substantially similar to the shape of the surface forming the cavity, the bushing positioned between the surfaces that form the post and cavity; and

wherein an aperture is formed in a base of the cavity and a threaded opening is formed in an end of the post and further including a bolt that extends through the aperture and that is received in the threaded opening to maintain the bushing under a compressive force between the surfaces that form the cavity and the post.

28. The assembly of claim 27 wherein the external surface of the bushing further includes at least one malleable and deformable extending member that deforms when compressed between the surfaces that form the post and the cavity.

29. A tilt apparatus for adjustably mounting a flat panel display to a support member, the apparatus comprising:

a rigid mount member coupled to the flat panel display;

first and second link members, each link member including first and second ends, the first ends of the link members coupled to the support member for pivotal motion about substantially parallel first and second axis where the first and second axis are separated by a first dimension, the second ends of the link members coupled to the rigid mount member for pivotal motion about substantially parallel third and fourth axis where the third and fourth axis are separated by a second dimension that is different than the first dimension;

wherein the first, second, third and fourth axis are substantially horizontal, the support member forms a collar and wherein the first and second link members are coupled to the collar by a coupling including at least one post member that extends into the collar where the post is rotatable about a substantially vertical axis formed by the collar.

30. The apparatus of claim 29 wherein the second dimension is less than the first dimension.

31. The apparatus of claim 29 wherein the mount member is coupled to a rear surface of the display.

32. The apparatus of claim 29 wherein each of the first and second link members includes a generally V-shaped member.

33. The apparatus of claim 32 wherein the first and second ends of each of the link members are at the distal ends of the V-shaped members and each V-shaped member is a rigid member.

34. The apparatus of claim 29 wherein the rigid mount member is coupled to a rear surface of the display device and the first and second link members are configured to facilitate display rotation about a substantially horizontal axis that resides on a side of the rear surface opposite the link members.

35. The apparatus of claim 34 wherein the tilt assembly includes rigid mount member coupled to the rear surface of the display and at least a first member including first and second ends, the first end of the link member coupled to the distal end of the support arm for pivotal motion about a first axis, the second end of the link member coupled to the mount member for pivotal motion about a second axis.

36. A four-bar assembly for use in a support arm for adjustably supporting a device, the assembly comprising:

first and second end members;

a first link member, the first link member including a substantially flat elongated rigid member having first and second lateral edges and first and second ends that are coupled to the first and second end members, respectively;

a second link member, the second link member including a substantially flat elongated rigid member having first and second lateral edges and first and second ends that are coupled to the first and second end members, respectively, so as to be substantially parallel to the first link member with the first lateral edge of the second link member facing in the same direction as the first lateral edge of the first link member;

wherein, a space between the first and second link members is open between the first lateral edges of the first and second link members and between the second lateral edges of the first and second link members; and

first and second cover members that are removably coupled to at least one of the end members so as to block the space between the first edges and to block the space between the second edges, respectively.

37. The assembly of claim 36 wherein each of the covers is removably coupled to each of the end members.

38. The assembly of claim 36 wherein each of the first and second end members includes a generally C-shaped member including first and second distal ends, the first ends of the first and second link members linked to the first ends of the end members and the second ends of the first and second link members linked to the second ends of the end members.

39. The assembly of claim 38 further including at least a first cover member removably coupled to at least one of the first and second end members, the cover member including a rectilinear portion and integral semi-circular portions at opposite ends of the rectilinear portion.

40. The apparatus of claim 39 wherein each of the end members includes an extension member that extends between and generally in the same direction as the distal ends of the end member and wherein the cover member is coupled to the extension members at coupling points.

41. The apparatus of claim 40 wherein a coupling point with the first end member extension member is generally midway between the distal ends of the first end member and the coupling point with the second end member extension member is generally midway between the distal ends of the second end member.

42. The assembly of claim 36 wherein the first link member is an upper link member, the assembly further including a spring mechanism including first and second ends wherein the first end is coupled to the first end member and the second end is coupled to the upper link member.

43. The assembly of claim 42 wherein the spring mechanism is a gas spring.

44. The assembly of claim 42 wherein an adjusting mechanism is provided at one of the first and second ends of the spring mechanism for adjusting the force applied by the spring mechanism to the upper link member.

45. The assembly of claim 36 further including at least one retaining member mounted to an external surface of at least one of the first and second link members for retaining wires adjacent the external surface.

46. A tilt apparatus for adjustably mounting a flat panel display to a support member, the apparatus comprising:

a rigid mount member coupled to the flat panel display; and

first and second link members, each link member including first and second ends, the first ends of the link members coupled to the support member for pivotal motion about substantially parallel first and second axis where the first and second axis are separated by a first dimension, the second ends of the link members coupled to the rigid mount member for pivotal motion about substantially parallel third and fourth axis where the third and fourth axis are separated by a second dimension that is different than the first dimension;

wherein the first and second axis are misaligned and wherein the third and fourth axis are misaligned.

47. A tilt apparatus for adjustably mounting a flat panel display to a support member, the apparatus comprising:

a rigid mount member coupled to the flat panel display; and

first and second link members, each link member including first and second ends, the first ends of the link members coupled to the support member for pivotal motion about substantially parallel first and second axis where the first and second axis are separated by a first dimension, the second ends of the link members coupled to the rigid mount member for pivotal motion about substantially parallel third and fourth axis where the third and fourth axis are separated by a second dimension that is different than the first dimension;

wherein the second dimension is permanent and is set by the rigid mount member.

48. The apparatus of claim 47 wherein the first and second axis are substantially horizontal.

49. The apparatus of claim 47 wherein each of the first and second link members includes a substantially V-shaped and rigid member and wherein the first end of each of the link members is located at a first distal end of the V-shaped member and the second end of each of the link members is located at a second distal end of the V-shaped member.

50. The apparatus of claim 47 wherein the rigid mount member is a single integral member and wherein the first and second link members are directly connected to the rigid mount member.

51. The apparatus of claim 50 wherein each of the link members is a rigid member.