Folding drafting table

• US 4,196,675 A
• Filed: 05/26/1978
• Issued: 04/08/1980
• Est. Priority Date: 05/26/1978
• Status: Expired due to Term

• Current Assignee: John L. Cook
• Original Assignee: John L. Cook
• Inventors: Cook, John L.
• Primary Examiner(s): Britts, Ramon S.
• Assistant Examiner(s): Aschenbrenner, Peter A.
• Application Number:
  US05/910,074
• Time in Patent Office: 683 Days
• Field of Search: 108/115, 108/124, 108/1-10, 108/116, 108/117, 108/127
• US Class Current: 108/6
• CPC Class Codes: A47B 2003/0806 and the table top rotating around a horizontal axis
• CPC Class Codes: A47B 27/02 Adjustable drawing tables without balancing means
• CPC Class Codes: A47B 3/0803 the legs rotating around a vertical axis A47B3/083, A47B3/087 and A47B3/091 take precedence
• CPC Class Codes: A47B 3/0818 with manually actuated locking means A47B3/083, A47B3/087 and A47B3/091 take precedence

Abstract

A folding drafting table having means for adjusting the height and means independent of height adjusting means to secure the table top at a desired angle. In a folding position the table top is substantially parallel to a main frame having a pair of spaced leg portions folded inwardly, the table being relatively compact in the folding position.

Claims

1. A folding drafting table comprising a U-shaped main frame having a pair of spaced, generally vertical leg portions, each of said leg portions comprising a pair of telescoping tubular portions, a pair of side members each having a lower arm portion adapted to rest horizontally on a floor substantially normal to the plane of said main frame and a substantially vertical upper arm portion, each of said side members being generally triangular and of a dimension less than one-half the distance between said pair of spaced, generally vertical leg portions, means for pivotally connecting said upper arm portion of each said side member to a respective one of said leg portions whereby said side members may be folded inwardly flat against said main frame in a connon plane, a table-top support members extending substantially horizontally above the top of said leg portions means for pivotally connecting said table-top support member to each of said leg portions comprising a lever arm having a circular opening adjacent one end thereof in which an end of said tubular section is pivotally journaled, and means adjacent the other end of said lever arm securing one of said leg portions thereto, means for adjustingthe length of each of said leg portions comprising a helical compression spring within the outer one of said pair of telescoping tubular portions, first abutment means adjacent the lower generally vertical portion of said outer one of said tubular portions against which the lower end of said spring bears, second abutment means adjacent the lower end of the inner one of said pair of tubular portions against which the upper end of said spring bears, and means for releasably clamping said inner and outer tubular portions in a desired telescoped relation, said spring tending to bias said inner tubular portion outwardly relative to said tubular portion, said adjusting means biasing said table-top support member upwardly, means for securing said table-top support member in the desired position of pivotal adjustment independent of said means for adjusting the length of each said leg portion to secure said table-top at any desired angle between horizontal and about 70°

below horizontal without adjustment of the lengths of said leg portions, means for securing said lever arm to said means for securing said table-top support member in a desired position of pivotal adjustment for movement therewith, and a table-top secured in overlying relation to said table-top support member for swinging movement between horizontal and folded positions, said table-top support member comprising an elongated tubular section substantially equal in length to one of the length and width dimensions of said overlying table-top, and a pair of brackets secured to the underside of said table-top adjacent respective side edges thereof, each bracket having a circular opening therein in which each end of said tubular section is pivotally journaled, and means for preventing axial movement of said tubular section, said table-top in folded position being substantially parallel to said main frame with said side members interposed therebetween.

2. The table claimed in claim 1 including a brace extending between said lower arm portions when substantially normal to said plane of said main frame, and means for releasably engaging each end of said brace with one of said lower arm portions.

3. The table claimed in claim 2, including clip means attached to the underside of said table-top for releasably stowing said brace when said table-top is swung into said folded position, said clip means being so located as to stow said brace with clearance between said inwardly folded side members and said table-top support member.