Extendible book shelf

• US 5,121,681 A
• Filed: 07/11/1991
• Issued: 06/16/1992
• Est. Priority Date: 07/11/1991
• Status: Expired due to Fees

• Current Assignee: Wen C. Chang
• Original Assignee: Wen C. Chang
• Inventors: Chang, Wen C.
• Primary Examiner(s): Chen, Jose V.
• Application Number:
  US07/728,259
• Time in Patent Office: 341 Days
• Field of Search: 108/65, 108/60, 108/61, 108/143, 108/137, 108/102, 108/25, 211/42, 211/43, 211/184
• US Class Current: 108/25
• CPC Class Codes: A47B 45/00 Cabinets, racks or shelf units, characterised by features enabling enlarging in height, length, or depth sectional furniture A47B87/00
• CPC Class Codes: A47B 57/588 by means of shelf bottoms with apertures co-operating with tongues or pins
• CPC Class Codes: A47B 65/00 Book-troughs; Accessories specially adapted for book-storing, e.g. book-ends
• CPC Class Codes: A47B 65/10 adjustable
• CPC Class Codes: A47B 96/02 Shelves movable shelves coupled to doors A47B96/16

Abstract

A book shelf including a base having a channel formed in a bottom for slidably receiving a slide, a number of holes formed along each of two side edges of each of the base and the slide, two stays each including a pair of legs coupled together at an arm, the legs of the stays being engageable in the holes of the base and the slide so that objects which are disposed on the book shelf can be supported between the stays.

Claims

1. A book shelf comprising a longitudinally extending base member having a channel formed in a bottom section thereof;

said base member having opposing transverse edge sections extending in said longitudinal direction, each of said edge sections having a plurality of longitudinally aligned first holes formed therethrough;

a slide member slidably received within said channel of said base member;

said slide member having opposing transverse edge sections extending in said longitudinal direction, each of said slide edge sections having a plurality of longitudinally aligned second holes formed therethrough, said second holes of said slide member being vertically alignable with said first holes of said base member;

at least two first stay members, each of said first stay members being substantially U-shaped including a pair of vertically directed legs coupled together by an arm member, said legs of said first stay members being insertable through said first holes and said second holes of said base member and said slide member for coupling said base and slide members each to the other whereby objects which are disposed on said book shelf can be supported between said first stay members; and

, a second stay member being substantially U-shaped in contour defining a second stay member arm secured on opposing ends thereof to a pair of leg members insertable within said first and second holes, said second stay member having a sleeve mounted on said arm member, said sleeve having an aperture formed therethrough for slideable insert of one limb of an L-shaped extension member, said other limb of said extension member insertable in said first and second holes of said base and slide members.

2. A book shelf according to claim 1, wherein each of said first stay members includes a cushioning sleeve disposed on each of said arm members so that said objects are prevented from directly contacting said first stay members.

3. A book shelf according to claim 1, wherein each of said first stay members includes a pole integrally formed between said legs for reinforcing said first stay members.

4. A book shelf according to claim 1, wherein a first recess and at least a second recess are formed in said slide member for accommodating pens and small objects respectively.