Patent US5490467A successfully refreshed from Google Patents.
← Back to Patent Explorer
US5490467A Expired / Lapsed US ⏱️ 0.0 years remaining

Folding table mechanism

Assignee: HOWE FUNITURE Corp
•
Filing: 1994-12-23
•
Granted: 1996-02-13
•
Expires: 2014-12-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A mechanism for folding the T-leg of a table is contained within a tubular housing carried by the end of the pedestal portion of the leg. Spring-loaded cams at each end of the housing slide in slotted frames mounted to the underside of the table. A locking shoulder at one end of each slot retains its cam in a locking position and a lever associated with each cam unlocks it and allows the leg to fold.

Inventors

  • 👤 Niels Diffrient

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 11:47
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; A47B3/091; A47B3/0911

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 252 words
In a table having a top with an under surface, at least one leg, and a mechanism for folding said leg between an upright position supporting said table top and a storage position substantially parallel with, and alongside, said under surface, the improvement wherein said folding mechanism comprises: first and second spaced, substantially parallel, mounting frames carried by the under surface of said table top on opposite sides of said leg, said first frame defining a first slot therein and said second frame defining a second slot therein, said slots having aligned locking shoulders; a tubular housing carried by said leg having first and second ends and extending substantially between said first and second frames; a cross rod carried by said leg within said housing and having a first end terminating at said first mounting frame and a second end terminating at said second mounting frame; first and second locking cams carried by the respective first and second ends of said cross rod and positioned in the respective first and second slots for rotation therein between a locking position engaging a respective locking shoulder and a release position wherein each of said cams is slidable in its respective slot; means mounted within said tubular housing for resiliently urging each of said cams into its locking position; release means for rotating said cross rod and lifting both of said cams out of their locking positions; and means for pivoting said leg into its storage position while sliding said cams within their respective slots.
Claim 2
Dependent Claim 252 words
In a table having a top with an under surface, at least one leg, and a mechanism for folding said leg between an upright position supporting said table top and a storage position substantially parallel with, and alongside, said under surface, the improvement wherein said folding mechanism comprises: first and second spaced, substantially parallel, mounting frames carried by the under surface of said table top on opposite sides of said leg, said first frame defining a first slot therein and said second frame defining a second slot therein, said slots having aligned locking shoulders; a tubular housing carried by said leg having first and second ends and extending substantially between said first and second frames; a cross rod carried by said leg within said housing and having a first end terminating at said first mounting frame and a second end terminating at said second mounting frame; first and second locking cams carried by the respective first and second ends of said cross rod and positioned in the respective first and second slots for rotation therein between a locking position engaging a respective locking shoulder and a release position wherein each of said cams is slidable in its respective slot; means mounted within said tubular housing for resiliently urging each of said cams into its locking position; release means for rotating said cross rod and lifting both of said cams out of their locking positions; and means for pivoting said leg into its storage position while sliding said cams within their respective slots.
Claim 3
Dependent Claim 12 words
The improvement of claim 1 wherein said resilient means comprises a spring.
Claim 4
Dependent Claim 12 words
The improvement of claim 2 wherein said spring is a torsion spring.
Claim 5
Dependent Claim 23 words
The improvement of claim 1 wherein at least one of said first and second locking cams is rotatable relative to said cross rod.
Claim 6
Dependent Claim 14 words
The improvement of claim 1 wherein said release means is a manually operable lever.
Claim 7
Dependent Claim 18 words
The improvement of claim 5 wherein a different lever encloses each of said first and second locking cams.
Claim 8
Dependent Claim 19 words
The improvement of claim 6 wherein each of said levers defines a recess loosely enclosing its respective locking cam.
Claim 9
Dependent Claim 30 words
The improvement of claim 1 wherein first and second axle plugs are housed, respectively, within the first and second ends of said tubular housing and support said cross rod therebetween.
Claim 10
Dependent Claim 44 words
The improvement of claim 8 wherein said resiliently urging means are first and second substantially cylindrical torsion springs, each having a first leg secured by a respective one of said axle plugs and a second leg engaging a respective one of said locking cams.
Claim 11
Dependent Claim 41 words
The improvement of claim 9 wherein said pivoting means comprises first and second braces, each having a first end pivotally retained in said leg and a second end pivotally retained in a respective one of said first and second mounting frames.
Claim 12
Dependent Claim 14 words
The improvement of claim 10 wherein said release means is a manually operable lever.
Claim 13
Dependent Claim 18 words
The improvement of claim 11 wherein a different lever encloses each of said first and second locking cams.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-02-12 1999-08-14 2000-02-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-02-12 2003-08-14 2004-02-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-02-12 2007-08-14 2008-02-13 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag