US3567277A - Folding tablet arm for chair - Google Patents
Folding tablet arm for chair Download PDFInfo
- Publication number
- US3567277A US3567277A US860487A US3567277DA US3567277A US 3567277 A US3567277 A US 3567277A US 860487 A US860487 A US 860487A US 3567277D A US3567277D A US 3567277DA US 3567277 A US3567277 A US 3567277A
- Authority
- US
- United States
- Prior art keywords
- tablet arm
- hinge
- bracket
- chair
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
- A47C7/68—Arm-rest tables ; or back-rest tables
- A47C7/70—Arm-rest tables ; or back-rest tables of foldable type
Definitions
- a tablet arm is pivotally mounted on a channel hinge which in turn is connected by link members to a fixed bracket carried by a chair support bar, the link members controlling the movement of the hinge to a lower folded position and to an upper tablet arm support position while bracing and locking the hinge in the support position.
- a channel link not only has a web portion serving as an enclosure when the parts are in use position but also extending diagonally to brace the hinge support for the tablet arm in such position.
- FIG. 1 is a front perspective view of the chair with the tablet arm in the use position;
- FIG. 2 a similar view of the chair with the tablet arm raised as the first step in the folding operation of the tablet arm;
- BIG. 3 a similar perspective view of the chair with the tablet arm completely folded out of the way;
- FIG. 4 a side view in elevation of the tablet arm in position for use showing the side opposite that shown in FIG. 3;
- FIG. 5 an exploded view of the tablet arm support mechanism, the rivets and screws being omitted;
- FIG. 6, a broken front view in elevation of the mechanism in the folded position, as in FIG. 3;
- FIG. 7, a broken right side View of the mechanism, as in FIG. 4, but on a larger scale to show the fitting together of the parts;
- FIG. 8 a broken front view of the mechanism with the tablet arm in the position for use, as in FIG. 1.
- the support tube 11 is flattened at 14 and welded or otherwise attached to the web inside surface 15 of the bracket member 16.
- the bracket 16 is channel-shaped and has its web portion 15 curved inwardly at the top 17 to serve as a finger guard.
- the outer flanges 18 and 19 are flared out at the bottom extremity at 20 and 21 for the attachment of the brace link 22 at the lower holes 23 and 24.
- the center holes or openings 25 and 26 are for the attachment of intermediate links 27 and 28 at holes 29 and 30.
- the top extremities or projections are in the form of stops 31 and 32.
- the channel-shaped brace 22 serves as a link between the lower portion of the bracket 16 and the upper end 33 of the hinge 34 at holes 35 and 36 in the brace 22 and holes 37 and 38 of the hinge 34.
- the opposite holes 39 and 40 are employed with rivets to attach the hinge 34 to the links 27 and 38 at holes 41 and 42.
- the hinge 34 is also channel-shaped having forwardlyextending side walls and with the upper end 43 closed for added rigidity and safety.
- the center portion 44 has a pivot hole 45 for attaching the hinge 34 to the tablet arm plate 46 at hole 47 by means of a bolt and nut 48.
- Concentrically located with these holes is a circular or arcuate depression 49 in the hinge 34 and emboss 50 in the plate 46.
- the emboss 50 travels in the circular depression 49 a total of 180.
- Beside the circular depression 49 are the two openings 51 and 52 where the lower ends 53 and 54 coincide with stops 55 and 56 in plate 46 and against which the stops 31 and 32 of bracket 16 strike, as shown in FIG. 8.
- the stopping surfaces produce a rigid stopping lock for the movement of the tablet arm.
- the plate 46 is attached to the tablet arm 13 with flat head screws in holes 57.
- a finger-pinch hazard is avoided by the increased surfaces 58 of brace member 22 and the wide surfaces 60 of the links 27 and 28, as can best be seen in FIG. 8. These enlarged surfaces close the openings and provide a box or housing about the moving parts within the mechanism.
- the tablet arm may be moved from stored position to use position by only two movements, namely, a revolving of the tablet arm upward and a lowering of it into the position for use.
- the stops 31 and 32 extending through openings 51 and 52 and into engagement with the stops 55 and 56 in plate 46 bring about a rigid locking of the structure.
- the brace link 22 forms a triangle with the hinge and bracket and holds the tablet arm in a level position even when extreme weight is applied to the tablet arm.
- the emboss in the plate 46 at each end of its travel strikes the ends of the circular depression 49 to provide a definite limit to the travel of the tablet arm and prevents tilting or irregular movement developing during such action.
- a bracket fixed to said support, a hinge member, a tablet arm pivotally mounted on said hinge member, a brace link pivotally connected at one end to said bracket and at the other end to said hinge member, and intermediate links connecting said bracket to said hinge and cooperating with said brace link for folding said hinge member downwardly when said tablet arm is being moved to stored position and for folding said hinge member into horizontal support position when said arm is moved to use position.
- brace link extends angularly between a lower portion of said bracket and a forward portion of said hinge member to brace said hinge when the tablet arms is in use position.
- brace link is channeled and has a web closing the bottom of said hinge member in said use position.
- bracket has forwardly-extending side walls and a web therebetween and a top closure between said side walls.
- a bracket having forwardly-extending side walls a brace link having side walls telescoping with said bracket side Walls, a hinge member having side walls enclosing said bracket and link side walls, pivot means connecting said brace link and said hinge member, intermediate links connecting said bracket and said hinge member, and a tablet arm pivotally mounted upon said hinge member, said link connections causing said hinge member to fold downwardly when said tablet arm is moved in one direction and to a horizontal position when said tablet arm is moved in another direction.
Abstract
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86048769A | 1969-09-24 | 1969-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3567277A true US3567277A (en) | 1971-03-02 |
Family
ID=25333334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US860487A Expired - Lifetime US3567277A (en) | 1969-09-24 | 1969-09-24 | Folding tablet arm for chair |
Country Status (1)
Country | Link |
---|---|
US (1) | US3567277A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3712668A (en) * | 1971-01-21 | 1973-01-23 | Vecta Group | Stackable chair with foldable tablet arm |
US5954393A (en) * | 1998-05-28 | 1999-09-21 | Haworth, Inc. | Chair with removable worksurface |
US6837539B1 (en) | 2003-12-22 | 2005-01-04 | Chromcraft Corp. | Movable tablet assembly and seat |
US20060273633A1 (en) * | 2005-06-07 | 2006-12-07 | Lang Mary F | Systems and methods for a wheelchair tray |
US20060273632A1 (en) * | 2005-06-07 | 2006-12-07 | Lang Mary F | Systems and methods for a wheelchair tray |
US20070108400A1 (en) * | 2005-11-14 | 2007-05-17 | Johnson Dwight N | Modular electrically-operated faucet |
US20080203778A1 (en) * | 2007-02-27 | 2008-08-28 | Vs Vereinigte Spezialmobelfabriken Gmbh & Co. Kg | Seating Implement with Tablet |
US20100090504A1 (en) * | 2008-10-14 | 2010-04-15 | Irwin Seating Company | Seat with movable tablet |
US8967711B2 (en) | 2010-12-14 | 2015-03-03 | VS Vereinigte Spezial Mobelfabriken GmbH & Co. KG | Swivel joint for seating implement |
USD767927S1 (en) | 2015-05-22 | 2016-10-04 | Kimball International, Inc. | Chair base |
USD771961S1 (en) | 2015-05-22 | 2016-11-22 | Kimball International, Inc. | Student chair |
USD772626S1 (en) | 2015-05-22 | 2016-11-29 | Kimball International, Inc. | Seat shell |
US9693625B2 (en) | 2015-06-05 | 2017-07-04 | Kimball International, Inc. | Student chair |
US20230414003A1 (en) * | 2022-06-28 | 2023-12-28 | L2 Furniture, LLC | Chair apparatus |
-
1969
- 1969-09-24 US US860487A patent/US3567277A/en not_active Expired - Lifetime
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3712668A (en) * | 1971-01-21 | 1973-01-23 | Vecta Group | Stackable chair with foldable tablet arm |
US5954393A (en) * | 1998-05-28 | 1999-09-21 | Haworth, Inc. | Chair with removable worksurface |
US6837539B1 (en) | 2003-12-22 | 2005-01-04 | Chromcraft Corp. | Movable tablet assembly and seat |
US20060273633A1 (en) * | 2005-06-07 | 2006-12-07 | Lang Mary F | Systems and methods for a wheelchair tray |
US20060273632A1 (en) * | 2005-06-07 | 2006-12-07 | Lang Mary F | Systems and methods for a wheelchair tray |
US7210735B2 (en) | 2005-06-07 | 2007-05-01 | Mary Frances Lang | Systems and methods for a wheelchair tray |
US7216929B2 (en) | 2005-06-07 | 2007-05-15 | Mary Frances Lang | Systems and methods for a wheelchair tray |
US20070108400A1 (en) * | 2005-11-14 | 2007-05-17 | Johnson Dwight N | Modular electrically-operated faucet |
US20080203778A1 (en) * | 2007-02-27 | 2008-08-28 | Vs Vereinigte Spezialmobelfabriken Gmbh & Co. Kg | Seating Implement with Tablet |
US7731277B2 (en) | 2007-02-27 | 2010-06-08 | Vs Vereinigte Spezialmoebelfabriken Gmbh & Co. Kg | Seating implement with tablet |
US20100090504A1 (en) * | 2008-10-14 | 2010-04-15 | Irwin Seating Company | Seat with movable tablet |
US8256835B2 (en) | 2008-10-14 | 2012-09-04 | Irwin Seating Company | Seat with movable tablet |
US8967711B2 (en) | 2010-12-14 | 2015-03-03 | VS Vereinigte Spezial Mobelfabriken GmbH & Co. KG | Swivel joint for seating implement |
USD767927S1 (en) | 2015-05-22 | 2016-10-04 | Kimball International, Inc. | Chair base |
USD771961S1 (en) | 2015-05-22 | 2016-11-22 | Kimball International, Inc. | Student chair |
USD772626S1 (en) | 2015-05-22 | 2016-11-29 | Kimball International, Inc. | Seat shell |
USD817680S1 (en) | 2015-05-22 | 2018-05-15 | Kimball International, Inc. | Seat shell |
US9693625B2 (en) | 2015-06-05 | 2017-07-04 | Kimball International, Inc. | Student chair |
US20230414003A1 (en) * | 2022-06-28 | 2023-12-28 | L2 Furniture, LLC | Chair apparatus |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CHRYSLER CAPITAL CORPORATION Free format text: SECURITY INTEREST;ASSIGNOR:AMERICAN SEATING COMPANY;REEL/FRAME:004772/0275 Effective date: 19870722 |
|
AS | Assignment |
Owner name: AMERICAN SEATING COMPANY,MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMERICAN SEATING COMPANY;REEL/FRAME:004847/0729 Effective date: 19880201 Owner name: AMERICAN SEATING COMPANY, 901 BROADWAY N.W., GRAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE;ASSIGNOR:AMERICAN SEATING COMPANY;REEL/FRAME:004847/0729 Effective date: 19880201 |