Precision chandelier frame and method for constructing the same

• US 5,577,838 A
• Filed: 07/07/1993
• Issued: 11/26/1996
• Est. Priority Date: 07/07/1993
• Status: Expired due to Term

• Current Assignee: Swarovski Lighting, Ltd.
• Original Assignee: Schonbek Worldwide Lighting Incorporated (Swarovski International Trading Corp.)
• Inventors: Lucas, John M.
• Primary Examiner(s): Husar, Stephen F.
• Application Number:
  US08/088,670
• Time in Patent Office: 1,238 Days
• Field of Search: 362/404, 362/405, 362/406, 362/450, 362/806, 362/147, 362/352, 248/221.3, 248/342, 248/343, 248/344
• US Class Current: 362/405
• CPC Class Codes: F21S 8/065 multi-branched, e.g. a chandelier

Abstract

A chandelier frame provides, in one embodiment, a first frame member and a second frame member that are connected by a plurality of arms at joints. The joints are plastically and asymmetrically deformed to locate each of the frame members in axially remote planes. In another embodiment, this invention provides a first and second frame member having arms therebetween that are rotated from a first plane defined by the frame members into a second plane that is substantially transverse to the first plane. The arms are joined to a locking structure that enables the first and second frame members to be maintained in an elastically deformed shape defining, in one preferred embodiment, a bowl-like shape. In another embodiment, a frame member is held in an elastically deformed, stressed state by an arm interconnected with interengaging locking structures on the arm. The spacing between arm locking structures is different from the spacing of interengaging a frame member locking structures to enable formation of the plastically deformed shape.

Claims

1. A chandelier frame comprising:

a first frame member;

a second frame member remote from the first frame member; and

a plurality of arms connecting the first and second frame members, wherein the first frame member is connected to each arm at a respective first joint that is plastically and asymmetrically deformed and that is free of breaks, and wherein the second frame member is connected to each arm at a respective second joint that is free of breaks.

2. A chandelier frame as set fourth in claim 1 wherein the joints between the second frame member in the arms are plastically and asymmetrically deformed.

3. A chandelier frame as set forth in claim 1 wherein the first frame member lies substantially in a first plane and the second frame member lies substantially in a second plane.

4. A chandelier frame as set forth in claim 1 wherein the first frame member lies in a plane in an unstressed position and is locked to the second frame member in a non-planar, elastically stressed position.

5. A chandelier frame as set forth in claim 4 wherein the first frame member and the second frame member are locked in said stressed position by a tab and slot arrangement.

6. A chandelier frame as set forth in claim 2 wherein the first and second joints comprise twisted joints.

7. A chandelier frame as set forth in claim 1 wherein the frame members comprise rings.

8. A chandelier frame as set forth in claim 1 wherein the arms define planes and have been positioned in their respective planes by rotating the arms to create the plastically and asymmetrically defined joints.

9. A chandelier frame constructed by a process comprising:

cutting a first frame member, a second frame member and a plurality of arms, the arms having first and second joints that are aligned non-radially, from a substantially flat sheet lying in a first plane;

applying a separation force between the first frame member and the second frame member in a direction substantially perpendicular to the first plane; and

causing substantially simultaneously a rotation between the first frame member and the second frame member to place the arms into a predetermined alignment and to locate the second frame member in a second plane remote from the first plane.

10. A chandelier frame constructed by a process comprising:

cutting a first frame member, a second frame member and a plurality of arms from a sheet that lies substantially in a first plane, the arms connecting the first frame member to the second frame member; and

twisting the arms to rotate each of the arms into a respective plane aligned substantially transverse to the first plane.

11. A chandelier frame as set forth in claim 10, formed by the further step of elastically deforming the first frame member so that it is oriented substantially out of the first plane and attaching a third frame member to maintain the first frame member in the elastically deformed state.

12. A chandelier frame as set forth in claim 10 wherein the step of cutting includes forming the arms so that each of the arms is radially aligned subsequent to the step of twisting.

13. A chandelier frame comprising:

a first frame member; and

an arm member connected to the first frame member, the arm member carrying a locking structure, wherein the arm member is twisted into a plane substantially transverse to a plane defined by the first frame member in an unstressed state, thereby positioning the locking structure at a point remote from the plane defined by the first frame member.

14. A chandelier frame as set forth in claim 13 further comprising a second frame member locked to the locking structure.

15. A chandelier frame as set forth in claim 14 wherein the second frame member holds the first frame member in a non-planar, elastically stressed position.

16. A chandelier frame as set forth in claim 13 wherein the first frame member is connected to the arm member at a joint that is plastically and asymmetrically deformed.

17. A chandelier frame as set forth in claim 13 wherein the first frame member also carries a locking structure, and wherein the arm member is twisted so that the locking structure of the first frame member and locking structure of the arm member are interengaged.

18. A chandelier frame as set forth in claim 17 wherein the locking structures comprise tabs and slots.

19. A chandelier frame as set forth in claim 14 further comprising narrowed joints at which the arm member is twisted.

20. A chandelier frame comprising:

a first ring that is in an unstressed state substantially flat and defines a plane; and

a locking frame member including a locking structure for interengaging the first ring, wherein the locking structure is locked to the first ring in a predetermined relationship to hold the ring in a non-flat, stressed, elastically deformed state.

21. A chandelier frame as set forth in claim 20 wherein the locking frame member is free of breaks.

22. A chandelier frame as set forth in claim 20 wherein the locking structure of the locking frame member interengages a locking structure of arms connected to said first ring to hold the first ring in the elastically deformed state.

23. A chandelier frame as set forth in claim 20 further comprising arms extending from the locking structure of the locking frame member and interengaging the first ring to hold the first ring in the elastically deformed state.

24. A chandelier frame as set forth in claim 23 wherein the arms are interengaged with the locking structure of the locking frame member and with the first ring by mating grooves.

25. A chandelier frame asset forth in claim 20 wherein the locking frame member comprises an arm and further comprising a base, the base being spaced axially remote from the ring.

26. A chandelier frame as set forth in claim 25 wherein each of the base and the arm includes interengaging formations for securing the base and the arm together, the interengaging formations being located on the arms so that, when the arm and the base are secured together, the ring is held in the non-flat, stressed, elastically deformed state.

27. A chandelier frame as set forth in claim 26 further comprising a plurality of arms, each of the arms including interengaging formations for securing the base and the arms together, the interengaging formations being located on the arms so that, when the arms and the base are secured together, the ring is held in the non-flat, stressed, elastically deformed state.

28. A chandelier frame as set forth in claim 27 wherein each of the base and the ring define a center axis, the base and the ring being axially remote thereon, the arms being disposed at circumferentially separated locations about the axis.

29. A chandelier frame as set forth in claim 20 wherein the locking frame member comprises an arm constructed and arranged to interengage with a pair of remote locations on the ring.

30. A chandelier frame as set forth in claim 29 wherein the arm is flat and is oriented in a plane that is substantially perpendicular to a plane defined by the first ring when the first ring is in an unstressed state, the arm including a widthwise edge having a curved contour, the first ring being elastically deformed to engage the curved contour when the arm is interengaged with the first ring at each of the two locations.

31. A chandelier frame as set forth in claim 29 wherein the locking structure comprises a plurality of arms that each interengage the ring at a pair of remote locations, the arms being substantially radially aligned about a center axis and being spaced about a circumference of the first ring taken relative to the center axis.

32. A chandelier frame as set forth in claim 20 further comprising a second ring that is substantially flat and that lies within the plane of the first ring in an unstressed state and further comprising a plurality of arms interconnected between the first ring and the second ring, the arms lying in the plane in an unstressed state, and the arms each being plastically deformed to define other planes substantially transverse to the plane of the first and the second ring, the locking frame member interengaging the arms at predetermined locations thereon to hold the first ring in the non-flat, stressed, elastically deformed state.

33. A chandelier frame as set forth in claim 32 wherein the plurality of arms located between the first ring and the second ring are positioned at circumferentially spaced points about the first ring and about the second ring, the arms being substantially radially aligned relative to an axis of the rings when the arms are in the plastically deformed state.

34. A chandelier frame as set forth in claim 33 wherein the locking frame member comprises a locking ring having a plurality of locking structures for engaging at least some of the plurality of arms at the predetermined locations thereon.

35. A chandelier frame as set forth in claim 34 wherein the locking structures of the locking ring are located at radially offset locations from corresponding interengaging locking structures at the predetermined locations on the arms when the first ring is in an unstressed state, whereby the arms are moved radially to align the locking structures of the arms with the locking structures of the locking ring.

36. A chandelier frame as set forth in claim 32 wherein the arms comprise a plurality of interconnected legs.

37. A chandelier frame as set forth in claim 32 wherein the arms include narrow runners proximate each of the first ring and the second ring, the runners constructed and arranged to enable a plastically deformed twist to be formed thereover.

38. A work piece for a chandelier frame comprising:

a first ring;

a second ring concentric with and lying within the first ring, said second ring and first ring being flat and lying substantially within a plane; and

a plurality of arms connecting the rings at non-pivoting joints, the joints between each arm and the first ring being non-radially aligned with respect to the joints between each arm and the second ring.

39. A chandelier frame as set forth in claim 38 wherein the joints between the arms and the first ring are offset from radial alignment with respect to the joints between the arms and the second ring to the same degree.

40. A chandelier frame as set forth in claim 38 wherein the first ring, second ring and arms are cut as an integral piece from a single flat sheet of material, the workpiece being free of breaks.

41. A chandelier frame as set forth in claim 38 wherein the arms are curved.

42. A chandelier frame as set forth in claim 38 wherein the joints are constructed and arranged so as to permit plastic and asymmetric deformation of the joints to displace the rings axially with respect to one another.

43. A chandelier frame as set forth in claim 38 wherein the joints define a narrow region relative to the arms and the rings.

44. A chandelier frame as set forth in claim 38 wherein the joints between the arms and the first ring form an acute angle on one side and an obtuse angle on an opposite side.

45. A workpiece for a chandelier frame comprising:

a first ring;

a second ring concentric and lying within the first ring, the first ring and the second ring being substantially flat and coplanar; and

a plurality of arms connecting the first ring and the second ring at joints, the joints being constructed and arranged to permit plastic and asymmetric deformation of the joints without substantial deformation of the first ring, the second ring and the arms.

46. A chandelier frame as set forth in claim 45 wherein the joints are narrowed with respect to the arms and first ring and second ring.

47. A chandelier frame as set forth in claim 45 wherein each of the arms carries a locking structure.

48. A chandelier frame as set forth in claim 47 wherein the locking structure comprises a deformable tab.

49. A chandelier frame as set forth in claim 45 wherein the arms are curved.

50. A chandelier frame as set forth in claim 45 wherein the arms include a plurality of legs.

51. A chandelier frame as set forth in claim 50 wherein the arms each comprise a loop.

52. A chandelier frame as set forth in claim 45 wherein each joint comprises a narrow runner constructed and arranged to permit a twist to be formed thereover.

57. A chandelier frame as set forth in claim 52 wherein the arms are connected to the frame loops at joints, the joints constructed and arranged to permit the arms to be twisted into a plane substantially transverse to a plane defined by the frame loops.

58. A chandelier frame as set forth in claim 57 wherein the joints are narrowed with respect to the arms and frame loops.

53. A workpiece for a chandelier frame comprising:

a plurality of frame loops interconnected to form a ring; and

a plurality of arms, each arm being within one of the frame loops and interconnecting opposite ends of its respective frame loop.

54. A chandelier frame as set forth in claim 53 wherein the arms are loops.

55. A chandelier frame as set forth in claim 54 wherein the arms carry a locking structure.

56. A chandelier frame as set forth in claim 55 wherein the locking structure comprises a deformable tab.

59. A method for constructing a chandelier frame comprising:

providing a first frame member lying substantially in a plane;

providing a second frame member lying substantially in the plane;

providing a plurality of arms connecting the first frame member and the second frame member, wherein the first frame member is connected to each arm at each of a plurality of first joints and the second frame member is connected to each arm at each of a plurality of second joints, the arms lying substantially in the plane; and

plastically and asymmetrically deforming each of the first and each of the second joints so that the first frame member and the second frame member are located in each of a plurality of axially remote planes.

60. A method as set forth in claim 59 wherein the step of plastically and asymmetrically deforming includes applying a separation force, to separate the first frame member and the second frame member, in a direction substantially perpendicular to the plane, and causing a rotation between the first frame member and the second frame member.

61. A method as set forth in claim 59 wherein the step of plastically and asymmetrically deforming includes twisting the arms to rotate the arms.

62. A method as set forth in claim 61 further comprising attaching a third frame member to each of the rotated arms to provide additional stiffness to the arms.

63. A method for constructing a chandelier frame comprising:

providing a first frame member lying substantially in a plane;

providing a second frame member lying substantially in the plane, the second frame member being remote from the first frame member;

providing a plurality of arms, the arms interconnecting the first frame member and the second frame member; and

applying a force to separate the first frame member and the second frame member in a direction substantially perpendicular to the plane and to cause a rotation between the first frame member and the second frame member, thereby locating the first frame member and the second frame member in planes that are axially remote from each other.

64. A method of constructing a chandelier frame comprising:

providing a frame member lying substantially in a plane in an unstressed state;

applying stress at three or more points concentric to the perimeter of the frame member, the stress causing elastic deformation in the frame member to from a predetermined bowl-shape; and

securing the frame member in an elastically stressed state to maintain the predetermined bowl-shape.

65. A method as set forth in claim 64 wherein the frame member comprises a pair of rings connected by integrally attached arms, the frame member being free of breaks.

66. A method as set forth in claim 64 wherein the step of applying stress comprises plastically deforming predetermined sections of the frame member so that portions interconnected therewith are oriented transversely to the plane;

and

wherein the step of securing comprises attaching a locking structure to the portions to maintain the frame member in the predetermined bowl-shape.

67. A method for constructing a chandelier frame comprising:

providing a first frame member having a first pair of locking structures that are spaced at predetermined spacing when the frame member lies in a plane in an unstressed state;

providing a second frame member having a second pair of locking structures that interengage the first pair of locking structures, the second pair of locking structures having a second predetermined spacing that is different than the first predetermined spacing; and

elastically deforming the first frame member and attaching the first pair of locking structures to the second pair of locking structures to maintain the first frame member in an elastically deformed state.

68. A method as set forth in claim 67 wherein the first frame member has a first width and the second frame member has a second width, the first and second widths defining planes that are transverse to one another.

69. A method as set forth in claim 67 wherein the first frame member is elastically deformed into a bowl-shape.

70. A method for constructing a chandelier frame comprising:

providing a first frame member having a first locking structure;

providing a second frame member having a second locking structure;

providing a third frame member having a third locking structure and a fourth locking structure constructed and arranged to interengage with the first locking structure and the second locking structure, respectively; and

attaching the first locking structure to the third locking structure and the second locking structure to the fourth locking structure, the step of attaching including elastically deforming the first frame member so that the second locking structure is aligned with the fourth locking structure, whereby the first frame member retains an elastically deformed state when the first locking structure is engaged with the third locking structure and the second locking structure is engaged with the fourth locking structure.

71. A method as set forth in claim 70 wherein the step of providing the first frame member includes providing a first ring having a plurality of first locking structures thereon.

72. A method as set forth in claim 71 wherein the step of providing the second frame member includes providing a second ring having a plurality of second locking structures thereon.

73. A method as set forth in claim 72 wherein the step of providing the third frame member includes providing an arm and wherein the step of attaching includes interconnecting the arm to each of the first ring and the second ring to space each of the first ring and the second ring at each of axially remote points.

74. A chandelier frame comprising:

a first ring;

a second ring interconnected at predetermined first points to the first ring;

a plurality of arms interconnecting the first ring and the second ring at predetermined second joints, the joints being plastically deformed and each defining a twisted shape thereover, wherein the arms including locking structures that are positioned remote from the first ring; and

a locking frame member, interengaging each of the locking structures, the locking frame member being constructed and arranged so that when the locking frame member is interengaged with the locking structures, the first ring and the second ring are in a stressed, elastically deformed state defining a bowl-shape.

75. A chandelier frame as set forth in claim 74 wherein the first ring defines an undulating outline about an outer perimeter thereof.

76. A chandelier frame as set forth in claim 74 wherein at least one of the first ring and the second ring includes a plurality of arm support structures, the arm support structures receiving chandelier arms for support of the first ring and the second ring relative to the chandelier arms.

77. A method for forming a two-tier chandelier frame comprising:

providing a substantially flat frame member having a base, a first arm extending from the base, a first support structure extending from the first arm and a second support structure interconnected by a runner to the arm, the second support structure including a second arm extending therefrom, the second arm having a free end;

plastically and asymmetrically deforming the runner so that the second support structure is aligned in a plane axially remote from a plane defined by the first support structure;

plastically deforming the second arm so that the free end is located adjacent the base; and

attaching the second arm to the base.

78. A method as set forth in claim 77 wherein the second arm has a width that is greater than a thickness and the step of plastically deforming the second arm includes aligning the second arm so that the width is aligned in a plane substantially perpendicular to the plane defined by the first support structure.

79. A method as set forth in claim 78 wherein the step of attaching includes interengaging a tab on the second arm with a slot on the base.