Patent Publication Number: US-6341880-B1

Title: Shade on a lamp

Description:
BACKGROUND OF THE INVENTION 
     1. Field of The Invention 
     The present invention relates to a shade on a lamp and particularly to an improvement of a shade attached on a lamp. 
     2. Description of Related Art 
     It is known that an illuminating device is provided wherever we are and it is possible to supply light source all the time such that our activities can be prolonged from day to night as desired without any difficulty to enrich our life style. 
     In fact, a broad definition of the illuminating device is an emitter including a shade in addition to a bare light bulb and it is essential for an illuminating device especially such as a suspending lamp or a table lamp attaching a shade. The shade for a lamp not only provides an effect of cutting off light emission but also offer a function of visional enhancement. When a consumer selects a table lamp during shopping, a favorite shade is a determinate factor for him/her to buy the lamp and this is an experience we have met before frequently. 
     However, the shade may cause a substantial increase of transportation cost while a lamp is delivered. Especially, the shade is fixedly attached on a lamp and a larger package is required such that a gross volume increases naturally for shipment to result in a higher delivery expense. Accordingly, it is conceivable that the shade having large size causes much inconvenience and extra cost from the manufacture to the consumer. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a shade on a lamp, which is easier to fit with a light bulb. 
     Another object of the present invention is to provide a shade on a lamp, which is light in weight for delivery. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The present invention can be more fully understood by referring to the following description and accompanying drawing, in which: 
     FIG. 1 is a disassembled extended view of a shade on a lamp in accordance with the present invention; and 
     FIG. 2 is a semi-sectional view of the shade for lamp shown in FIG. 1 after assembly. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to FIG. 1, basically, a shade on a lamp of the present invention comprises a shade part  1 , a frame part  2 . 
     The shade part  1  is made of a sheet material and a shade hole  11  is provided at the central location thereof to be passed through by the light. A plurality of radial flips  12  extends outward surrounding the shade hole  11  such that an equal angular distance between any two adjacent flips  12  is constituted. It is noted that the total number of the flips  12  is a variable depending on the actual need but a minimum number of three flips is a least requirement. The embodiment illustrated in FIG. 1 has six flips and it is an example only. The outer end of each flip  12  is provided with an engaging hole  13  for engaging with the frame  2 . 
     In order to form a shade, each flip  12  at the inner end thereof near the shade hole  11  has an arc foldable line  14 . The folding line  14  intersects the inner part at both corner ends thereof and a radial partition folding line  15  is formed between each corner end and the hole  11 . Each flip  12  at both lateral edge thereof has a straight face folding line  16  respectively and a straight end folding line  17  is located at the outer end of each flip  12  and disposed between both face folding lines  16  for angle adjustment. 
     The frame  2  has a size corresponding to a size enclosed by all the end folding lines  17  so that the frame  2  has the same shape of the shade part  1 . As illustrated in FIG. 1, the frame  2  is hexagon shape. The frame  2  has a central ring  21  to engage with the bulb head of a light bulb and has an outer skeleton with skeleton sections  22 . Each skeleton section  22  at the middle portion thereof has an inward engaging tab  23  and a fitting hole  24  passes through the tab  23  respectively. T he central ring  21  can be arranged at the same height with the skeleton sections  22  or a different height from the skeleton sections  22 . The outer skeleton connects with the central ring  21  by way of radial ribs. 
     Referring to FIG. 2, the shade part  1  is folded along the folding lines to form a hexagon shade such that the top thereof is smaller than the bottom thereof. The bottom of the shade further has an inward extending lower edge. Meanwhile, the shade part  1  and the frame  2  are fitted with each other and then the fitting holes  24  and the engaging holes  13  are aligned with each other respectively and passed through and fixed by conventional fasteners. Once each flip is distorted and unable to engage tightly, the area between the face folding line  16  and the respective lateral edge is coated with glue respectively to adhere adjacent flips. Thus, the central ring  21  can fit with the light head accordingly. 
     The shade part  1  can be made of plastics, paper or other sheet material and the frame can be made of metal or plastics. In practice, the shade of the present invention can be done by the existing technique absolutely. 
     It is appreciated that the shade on a lamp in accordance with the present invention is easily self-assembled and the shade part and the frame have a little thickness respectively. The delivery cost of the shade is much lower than that of the prior art shade. Therefore, it is obvious that the advantages of the present invention are not possible to be reached by the prior art. 
     While the invention has been described with reference to a preferred embodiment thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.