Disassembly-type lamp shade structure (2)

• US 6,517,220 B2
• Filed: 01/03/2001
• Issued: 02/11/2003
• Est. Priority Date: 01/03/2001
• Status: Expired due to Fees

• Current Assignee: Tigon Lighting Co., Ltd.
• Original Assignee: Wen-Chang Wu
• Inventors: Wu, Wen-chang
• Primary Examiner(s): Tso, Laura K.
• Application Number:
  US09/752,738
• Publication Number:
  US 20020085382A1
• Time in Patent Office: 769 Days
• Field of Search: 362/352, 362/355, 362/356, 362/357, 362/358
• US Class Current: 362/352
• CPC Class Codes: F21V 1/06 foldable or collapsible
• CPC Class Codes: F21V 17/007 with provision for shipment or storage

Abstract

A disassembly-type lamp shade structure of simple assembly and reduced physical dimensions comprised of a top ring situated at the uppermost end of a lamp shade, a bottom ring of larger circumference than the top ring, and frame members propped between the top ring and the bottom ring. The top ring has notches respectively punch formed at the frame member support positions that provide for the placement of the frame members against them to position and limit the movement of the frame members or the rod-like body of the top ring is punch flattened on two sides to retain the supporting frame members such that after the punch flattening, the stop nubs thereby formed position and limit the movement of the frame members. The bottom ring has respectively disposed at the support positions of the frame members sleeve mounts into which they are respectively inserted. The sleeve mounts each have projecting upward a tubular keeper hole that provides for the fixed insertion of the frame members. After the frame member insert posts are slipped into the sleeve mounts, the sleeve mount keeper holes retain the member insert posts via an integrated press-fit lock annulus. The two sides of the bottom ring annular rod-like body to which each sleeve mount is conjoined are punch flattened such that after punch flattening, the stop nubs thereby formed position and limit the movement of the sleeve mounts. When packaged, the sleeve mounts are first rotated downward to enable the folding of the frame members fixed through insertion into the sleeve mounts. As such, the lamp shade of the present invention occupies the smallest physical assembly space to facilitate ease of assembly and, furthermore, the resulting minimized storage area effectively reduces shipping costs.

Claims

1. A disassembly-type lamp shade comprising:

a top ring, a bottom ring, and frame members propped between the top ring and the bottom ring, wherein;

the top ring has frame member support positions that provide for the placement of the frame members against the top ring to position and limit movement of the frame members;

the bottom ring has respectively disposed at support positions of the frame members sleeve mounts into which the frame members are inserted, the sleeve mounts each have projecting upwardly a tubular keeper hole that provides for fixed insertion of one of the frame members, the bottom ring to which each sleeve mount is conjoined is punch flattened on opposite sides of the sleeve mounts, such that after punch flattening, stop nubs thereby formed position and limit movement of the sleeve mounts; and

,

the frame members are fork-shaped at top ends thereof, and, engage the top ring, bottom ends of the frame members are bent and inserted into the tubular keeper holes of the sleeve mounts such that, after the frame members engage the sleeve mounts, the sleeve mount keeper holes retain the frame members via an integrated press-fit lock annulus.

3. The disassembly-type lamp shade as claimed in claim 1 wherein the support positions on the top ring are punch flattened at two sides forming stop nubs to limit movement of the frame members.

4. The disassembly-type lamp shade as claimed in claim 1 wherein the top ring and the bottom ring are wrapped in an enshrouding fabric material including an exterior fabric surface layer tightly fitted onto an outer periphery of the frame members, an interior fabric surface layer placed along inner sides of the frame members and an adhesive fastening tape applied over bottom ends of the interior fabric surface layer and the exterior fabric surface layer, whereby the frame members are enveloped.

2. A disassembly-type lamp shade comprising a top ring, a bottom ring and frame members propped between the top ring and the bottom ring, wherein:

the top ring has notches respectively punch formed at frame member support positions that provide for the placement of the frame members against the top ring position and limit the movement of the frame members; and

the frame members are fork-shaped at top and bottom ends, and engage the notches respectively punch formed in the top ring and the bottom ring thereby providing for the placement of the frame members against the top and bottom rings to position and limit movement of the frame members relative to the top and bottom rings.

5. The disassembly-type lamp shade as claimed in claim 2 wherein the top ring and the bottom ring are wrapped in an enshrouding fabric material including an exterior fabric surface layer tightly fitted onto an outer periphery of the frame members, an interior fabric surface layer placed along inner sides of the frame members and an adhesive fastening tape applied over bottom ends of the interior fabric surface layer and the exterior fabric surface layer, whereby the frame members are enveloped.