US1988037A - Supporting and positioning device for chairs and the like - Google Patents

Supporting and positioning device for chairs and the like Download PDF

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Publication number
US1988037A
US1988037A US464439A US46443930A US1988037A US 1988037 A US1988037 A US 1988037A US 464439 A US464439 A US 464439A US 46443930 A US46443930 A US 46443930A US 1988037 A US1988037 A US 1988037A
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US
United States
Prior art keywords
chair
recess
locking
stem
chairs
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
Application number
US464439A
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English (en)
Inventor
Furrer Carl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Landis and Gyr AG filed Critical Landis and Gyr AG
Application granted granted Critical
Publication of US1988037A publication Critical patent/US1988037A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/14—Tables with tops of variable height with pins coacting with holes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/26—Chairs or stools with vertically-adjustable seats with vertical, or inclined toothed rack; with peg-and-notch mechanism
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/34—Chairs or stools with vertically-adjustable seats with pins coacting with holes or bolt-and-nut adjustment

Definitions

  • the invention relates to novel and useful improvements inr height or position varying means applicable to chairs and other objects whereinrapid, easy andv simple height variations and other positionings are desirable.
  • Fig. 1 is an elevation, with parts in section, of a chair embodying one form of the invention
  • Fig. 2 is an enlarged, horizontal section on line 2--2 of Fig. 1, showing the height adjusting means w in locked position; j
  • Fig. 3 is a like view to Fig. 2, showing the adjusting device in unlocked position;
  • Fig. 4 is an enlarged, fragmentary, detached vertical sectional detail of parts ⁇ shown near the center of Fig. l;
  • Fig. 5 is an elevation, partly in section, of a hair embodying a different form o'f the invenion;
  • Fig. 6 is an enlarged, horizontal section on line 6 6 of Fig. 5, showing the height adjusting means in locked position;
  • Fig. 7 is an enlarged, detached, vertical sectional view of parts shown near the center of Fig. 5, and showing the locking device in unlocked position.
  • the invention provides novel position varying means, especially height varying means, applicable to chairs and other articles needing, and adaptable to, similar positional variations.
  • the invention provides such means having especial applicability to chairs and the like.
  • the invention provides position varying means of the kind described which are substantially au- '9 tomatic in operation in effecting the position changing operation, in that little need be done more than to move the object to the desired position, a slight additional movement of the object suflicing to unlock the holding means and to re- "n lock it to hold the article in the new position.
  • position varying means having the described characteristics are provided which are of very simple and sturdy construction, having few parts and operating in a very simple and reliable manner, and requiring no direct or manual manipulation of the holding or locking means.
  • the invention is shown applied to a chair, and in certain of its features it has vspecial application as a chair positioning means.
  • the locking device is shown in two forms; one form wherein it is gravity-operated, and the other form wherein it is spring-impelled.
  • a chair having a seat and a frame 2 between which the variable positioning means are located and interact.
  • a vertical tubular shaft 3 Supported in fixedfposition upon, and projecting upwardly from, the frame 2 is a vertical tubular shaft 3, within which slides a downwardly-depending stem 4, fixed to the chair seat, and upon which the seat is supported.
  • Stem 4 is likewise preferably hollow.
  • each of said recesses having the upper surface 9 thereof horizontal, or substantially horizontal, and having the lower surface 10 thereof inclined' outwardly and downwardly.
  • the recessesv correspond in number to the number and location of desired positions of the chair.
  • Cooperating therewith on the tubular column 3 is a recess 15, which is inwardly -and downwardly inclined.
  • retaining and guiding means are provided for a freely-moving locking member which is impelled by gravity into the locking position, and which is moved from locking position by simply lifting the chair.
  • the locking member referred to is preferably a freely-rolling member, and is shown as a cylinder 16.
  • Guiding and retaining means for the freely moving member 16 comprise a plate 1'7, xed to, and
  • the member 16 may thus move into and out of the recess 15 and along the plate 17, between locking and unlocking positions.
  • the outer portion of the plate 17 is turned up at either side, as shown at 20 and 21, to constitute part of the retaining means for the locking member 16. Between the turned up portions 20 and 21 is an opening 22, through which the locking member may be introduced or vithdrawn.
  • the mechanism will serve to hold the chair in a predetermined position, i. e., against free rotation.
  • the rolling 1er 1o' will be moved upwardly and outwardly by engagement with the downwardly and outwardly slanting bottom surface 10 of the particular recess (l in which it is engaged, and it will roll upwardly along the plate 17 until it is clear of the ein 1. That is, it will move from the position of Tnlgs. 1 and 2 to that of 3, when it is clear of It will continue to do this, or to be in this position, so long as the chair is lifted.
  • the rolling member 16 When the chair is released, it tends to sett-le by the action ci gravity, and the rolling member 16 is per *ted to roil downwardly along the plate 17 and inwardly in the recess 15, and will enter one of the recesses 8 in tl e stem 4. I'he upper surface 9 of the recess 8 will rest thereon, the rolling member being interlocked in recesses 8 and 15, the chair is supported or l cked into desired position, as shown in Figs. 1 and 2.
  • FIGs. e to 3 an embodiment is ercmpiarily shown wherein the locking device is both held in position and impelled to locking position by resilient means, such as a spring.
  • resilient means such as a spring.
  • the rolling member 16 is acted upon by resilient means, shown herein as a coil tension spring 27.
  • grooves 28 and 29 are formed in either end of the rolling member 16, and the spring 27 has terminal hooks 29 and 30 hooking over the grooved portions of the member 16, the tension spring passing about the exterior oi the hollow column 3.
  • the spring both holds the locking member 16 in position and impels it to locking position.
  • the operation is otherwise as already described. That is, when a recess 8 on the stem is in register' with the recess 15, the spring draws the member 16 inwardly, and it moves downwardly in the rc 17 an( into registered recess 8, and the tcp surf .ce 9 of the ecess rests upon the member 16 and the chair is thereby supported.
  • the downwardly and outwardly inclined surface 1f) ci' the recess moves the member 1:3 l'jaclzwardly against the tension of its spring until it passes outside the periphery or the stem 4, the chair being thereby rendered freely movable.
  • the member 15 When a recess 8 on the stem is brought into register with the recess 15, the member 15 is drawn inwardly by its spring, in the maner previously described, and is again in locking and supporting position.
  • the chair or the like By imparting a quarter-rotation to the stem i when the member 16 is outside the periphery thereof, the chair or the like may be lowered to any desired position, and by subsequent rotation in the opposite direction, the locking movement may be again effected as alreads7 describe
  • the invention in its broader aspects is not limited to the ez-:act constructions herein exemplarily shown and described as embodiments thereof. but changes may be made in said structures. within the scope of the accompanying claims, without departing from the principles of the invention or sacricing its chier advantages.
  • a chair including in combine tion a seat. for the seat, a frame pari in y vertically movable, an open slot formed i frame part, spaced apart on sai a detent member slidable in slot, said slot being osuincint depth to completely receive said I. tent member and a coiled spring encircling frame part and secured to the opposite ends of said detent for inging said rtzt inwardly through said slot and into one said notches to hold the seat and stem at the desired height.

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)
US464439A 1929-04-04 1930-06-28 Supporting and positioning device for chairs and the like Expired - Lifetime US1988037A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH137428T 1929-04-04
CH140293T 1929-07-12

Publications (1)

Publication Number Publication Date
US1988037A true US1988037A (en) 1935-01-15

Family

ID=43028836

Family Applications (1)

Application Number Title Priority Date Filing Date
US464439A Expired - Lifetime US1988037A (en) 1929-04-04 1930-06-28 Supporting and positioning device for chairs and the like

Country Status (5)

Country Link
US (1) US1988037A (fr)
CH (2) CH137428A (fr)
DE (2) DE522695C (fr)
FR (1) FR696102A (fr)
GB (1) GB350721A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624392A (en) * 1949-12-29 1953-01-06 Bargen William James School desk
US2658557A (en) * 1949-12-16 1953-11-10 American Seating Co Seat support
US2711209A (en) * 1951-07-03 1955-06-21 Riabovol Ivan Load supporting means of adjustable height
US4757868A (en) * 1986-05-09 1988-07-19 Cresswell Thomas A Disassemblable vehicle for attachment to a powered, steerable front wheel and components for rigidly holding the vehicle in assembled condition
US5632480A (en) * 1994-11-14 1997-05-27 Huffy Corporation Basketball goal support having removable ballast and continuously adjustable pole
US5881537A (en) * 1994-02-03 1999-03-16 Huffy Corporation Method of packing a basketball goal support system
US5924658A (en) * 1998-01-07 1999-07-20 Stryker Corporation IV pole
US5980400A (en) * 1994-02-03 1999-11-09 Huffy Corporation Compression molded basketball components with inmold graphics
US5983602A (en) * 1994-02-03 1999-11-16 Huffy Corporation Method of packing a portable basketball system
US6041681A (en) * 1996-06-13 2000-03-28 Griffin, Sr.; Edwin Lug wrench stabilizer
US6053825A (en) * 1994-02-03 2000-04-25 Huffy Corporation Portable basketball system having dual ballast tanks movable between compact and expanded positions
US6283878B1 (en) 1999-03-11 2001-09-04 Huffy Corporation Adjustable height basketball apparatus
US20070072706A1 (en) * 2005-09-29 2007-03-29 Russell Corporation Ratchet elevator system
US20070072707A1 (en) * 2005-09-27 2007-03-29 Russell Corporation Spinning nut basketball elevator system

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658557A (en) * 1949-12-16 1953-11-10 American Seating Co Seat support
US2624392A (en) * 1949-12-29 1953-01-06 Bargen William James School desk
US2711209A (en) * 1951-07-03 1955-06-21 Riabovol Ivan Load supporting means of adjustable height
US4757868A (en) * 1986-05-09 1988-07-19 Cresswell Thomas A Disassemblable vehicle for attachment to a powered, steerable front wheel and components for rigidly holding the vehicle in assembled condition
US6053825A (en) * 1994-02-03 2000-04-25 Huffy Corporation Portable basketball system having dual ballast tanks movable between compact and expanded positions
US5881537A (en) * 1994-02-03 1999-03-16 Huffy Corporation Method of packing a basketball goal support system
US5916047A (en) * 1994-02-03 1999-06-29 Huffy Corporation Portable basketball goal support system with separate ballast tank
US5980400A (en) * 1994-02-03 1999-11-09 Huffy Corporation Compression molded basketball components with inmold graphics
US5983602A (en) * 1994-02-03 1999-11-16 Huffy Corporation Method of packing a portable basketball system
US6001034A (en) * 1994-02-03 1999-12-14 Huffy Corporation Basketball backboard support pole
US5632480A (en) * 1994-11-14 1997-05-27 Huffy Corporation Basketball goal support having removable ballast and continuously adjustable pole
US6041681A (en) * 1996-06-13 2000-03-28 Griffin, Sr.; Edwin Lug wrench stabilizer
US5924658A (en) * 1998-01-07 1999-07-20 Stryker Corporation IV pole
US6283878B1 (en) 1999-03-11 2001-09-04 Huffy Corporation Adjustable height basketball apparatus
US20070072707A1 (en) * 2005-09-27 2007-03-29 Russell Corporation Spinning nut basketball elevator system
US7331883B2 (en) 2005-09-27 2008-02-19 Russell Corporation Spinning nut basketball elevator system
US20070072706A1 (en) * 2005-09-29 2007-03-29 Russell Corporation Ratchet elevator system
US7335119B2 (en) 2005-09-29 2008-02-26 Russell Corporation Ratchet elevator system

Also Published As

Publication number Publication date
DE522695C (de) 1931-04-14
CH140293A (de) 1930-05-31
FR696102A (fr) 1930-12-26
GB350721A (en) 1931-06-18
DE535996C (de) 1931-10-17
CH137428A (de) 1930-01-15

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