US3863982A - Tilt-swivel mechanism for a chair - Google Patents

Tilt-swivel mechanism for a chair Download PDF

Info

Publication number
US3863982A
US3863982A US329525A US32952573A US3863982A US 3863982 A US3863982 A US 3863982A US 329525 A US329525 A US 329525A US 32952573 A US32952573 A US 32952573A US 3863982 A US3863982 A US 3863982A
Authority
US
United States
Prior art keywords
support member
shaft
chair
tilt
upper support
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
US329525A
Inventor
Edwin C Sandham
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.)
EST CO Inc
Original Assignee
EST CO Inc
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 EST CO Inc filed Critical EST CO Inc
Priority to US329525A priority Critical patent/US3863982A/en
Application granted granted Critical
Publication of US3863982A publication Critical patent/US3863982A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • 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
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks

Definitions

  • the tilt-swivel mechanism includes a vertical shaft journaled for rotation within the base or column of the chair.
  • the upper U-S- Clend portion of the haft arries a mounting plate and a Int. Cl. haped upper plate is ecured to the bottom pan Of Search of the chair eat and is to the mounting plate 243/384 so that the upper plate, as well as the seat, can pivot about the hinge pin.
  • a resilient block of rubber or References Cited plastic material is located between the bottom surface UNITED STATES PATENTS of the upper plate and a cap secured to the upper end 165,718 7/1875 Doremus 248/375 of the Shaft AS the Seat tilts rearwardly, the bottom 2 1 4 9 3 12 1939 g 75 surface of the upper plate pivots upwardly to com- 2,228,7l9 l/l94l 248/375 press the resilient block against the cap and cushion 2,365,468 12/1944 248/375 X the tilting action.
  • a coil spring of substantial length would normally be required, and thus in order to decrease the overall length of the spring, it is common practice to employ a pair of side-by-side coil springs.
  • the use of the coil springs in the conventional tilt-swivel mechanism detracts from the appearance of the chair for the springs are readily visible, and occasionally clothing or stockings may catch on the exposed springs or spring supports.
  • the springs are often painted the color of the chair base, while in other cases the springs are enclosed in housings or shields.
  • the use of coil springs requires occasional lubrication to prevent squeaking and adjustment of the spring force.
  • rubber cushions or pads have been utilized in place of the coil springs, and the most common form of rubber cushion is a cylindrical cushion substituted for the conventional coil spring.
  • the use of rubber cushions of this type results in a rather unattractive appearance for the chair in that the elongated rubber cushion or its casing is visible to the observer.
  • the invention relates to an improved tilt-swivel mechanism for a chair.
  • the tilt-swivel mechanism includes a vertical shaft journaled for rotation within the base of the chair, and the upper end portion of the shaft carries a mounting plate. Hinged to the mounting plate for tilting movement is a dish shaped upper plate which is secured to the bottom pan of the chair seat. With the hinge construction, the upper plate and chair seat can tilt in a front-to-rear directionwith respect to the shaft and base of the chair.
  • a pair of resilient rubber-like blocks are located between the bottom surface of the upper plate and a cap secured to the upper end of the shaft. As the seat tilts, the bottom surface of the upper plate pivots upwardly to compress the block against the cap and cushion the tilting action.
  • the tilt-swivel mechanism of the invention is a compact unit in which the resilient cushioning blocks are not exposed and are located entirely within the upper, dish shaped mounting plate.
  • the tilt-swivel construction has 21 fewer number of parts than conventional tiltswivel mechanisms and thereby has a lower cost.
  • FIG. 1 is a side elevation of a chair incorporating the tilt-swivel construction of the invention
  • FIG. 2 is an enlarged side elevation of the tilt-swivel mechanism with parts broken away in section;
  • FIG. 3 is a view similar to FIG. 2 showing the chair seat in a tilted condition and the rubber blocks compressed
  • FIG. 4 is a section taken along line 4-4 of FIG. 2.
  • FIG. I illustrates a chair having a base I and a seat 2 which is connected to the base through a tilt-swivel mechanism, indicated generally by 3.
  • the tilt-swivel mechanism 3 includes a vertical shaft 4, which is mounted for rotation within a bushing 5 in the base 1. Secured to the upper portion of the shaft 4 is a mounting plate 6 which includes a generally flat bottom section 7 and upwardly sloping side edges 8. Ears 9 extend upwardly from the sloping side wall 8 and are provided with aligned openings.
  • An upper plate 10 is secured to the seat 2 and is mounted for tilting movement with respect to the plate 6. As shown in FIG. 2, the upper plate 10 is provided with a peripheral flange 11 which is secured to the bottom pan of seat 2 by screws or other fasteners.
  • the mounting plate 10 has a generally dish shaped configuration including a downwardly sloping sidewall or body 12 which terminates in a bottom surface 13. Bottom surface 13 is provided with an elongated opening or slot which receives the shaft 4.
  • a hinge pin 14 is secured to the body portion 12 of plate 10, and the ends of the hinge pin project through openings in the body portion 12 and are journaled within the openings in ears 9.
  • the bumper 15 includes an upper enlarged head 16 and a stem 17, which is secured with an opening in the sloping wall 8 of the mounting plate 6. As the upper plate 10 tilts forwardly, the body portion 12 engages the head 16 of the bumper to limit the forward tilt.
  • a pair of resilient blocks 18 are located between the bottom surface 13 of plate 10 and an annular cap 19 secured to the upper end of shaft 4.
  • the bottom surface 13 of plate 10 is provided with a pair of recesses 20 which serve to position the blocks 18 on either side of the shaft 4.
  • the cap 19 is provided with a downwardly extending rear flange 21 which engages and aligns the rear edges of the blocks 18.
  • the resilient blocks 18 are positioned on the bottom surface 13 of the upper plate.
  • the cap 19 is then inserted around the upper end of the shaft and forced downwardly, thereby compressing the blocks. With the blocks in a compressed condition, the upper end of the shaft 4 is upset or swaged outwardly by a staking action to thereby firmly secure the cap to the upper end of the shaft 4.
  • the shaft and seat can rotate freely around the axis of the shaft 4.
  • the tilt-swivel mechanism of the invention is a compact unit, and as the resilient cushioning blocks 18 are located within the upper plate 10, they are not exposed so that the tilt-swivel mechanism has a more pleasing outer appearance than conventional types using coil springs or other rubber cushioning members.
  • the tilt-swivel mechanism has a fewer number of parts than conventional tilt-swivel mechanisms, thereby reducing the overall cost of the unit.
  • tilt mechanism can also be utilized in a non-swivel type of seating such as used in theaters, airports, multiple chair units for reception rooms, and the like.
  • a tilt-swivel mechanism for a chair to enable the seat of the chair to swivel as well as tilt to the rear comprising a supporting structure, a vertical shaft journaled for rotation about its axis with respect to said supporting structure, a mounting plate secured to said shaft and spaced below the upper end of the shaft, an upper dish-shaped annular support member located above said mounting plate, a chair seat secured to said upper support member, said upper support member having a peripheral portion secured to said chair seat and having a central body portion extending downwardly from said peripheral portion and terminating in a generally flat bottom surface spaced beneath said chair seat, said bottom surface having a single operative opening to receive said shaft, hinge means for hinging the upper support member to said mounting plate to enable the upper support member and said chair seat to tilt to the rear, abutment means secured to the upper end of the shaft and located above the bottom surface of said upper support member, and resilient means disposed and held between said abutment means and the bottom surface of said upper support member whereby said resilient means is concealed by
  • said abutment means includes a surface extending radially outward from the shaft and engaged with the upper end of said resilient means, and said abutment means also includes a downwardly extending member engaged with the rear end of said resilient means.
  • a tilt-swivel mechanism for a chair to enable the seat of the chair to swivel as well as tilt to the rear comprising a supporting structure, a vertical shaft journalled for rotation about its axis with respect to said supporting structure, a mounting plate secured to said shaft and spaced below the upper end of the shaft, an upper annular support plate located above said mounting plate, a chair seat secured to said upper support member, said upper support member having a peripheral portion secured to said chair seat and having a central body portion extending downwardly from said peripheral portion and terminating in a bottom surface spaced beneath said chair seat, said bottom surface having an opening to receive said shaft, hinge means for hinging the upper support member to said mounting plate to enable the upper.
  • said resilient means including a pair of resilient members of rubber-like material located laterally with respect to the fore and aft direction of tilt of said seat on opposite sides of said shaft.
  • each resilient member is generally cube-like in shape.

Abstract

A tilt-swivel mechanism for a chair. The tilt-swivel mechanism includes a vertical shaft journaled for rotation within the base or column of the chair. The upper end portion of the shaft carries a mounting plate and a dish shaped upper plate is secured to the bottom pan of the chair seat and is hinged to the mounting plate so that the upper plate, as well as the seat, can pivot about the hinge pin. A resilient block of rubber or plastic material is located between the bottom surface of the upper plate and a cap secured to the upper end of the shaft. As the seat tilts rearwardly, the bottom surface of the upper plate pivots upwardly to compress the resilient block against the cap and cushion the tilting action.

Description

United States Patent 1191 Sandham Feb. 4, 1975 [54] TILT-SWIVEL MECHANISM FOR A CHAIR 3,672,721 6/1972 Williams 248/375 x [75] Inventor: Edwin C. Sandham, Thiensville,
Wis Przmary ExammerFranc1s K. Zugel Attorney, Agent, or Firm-Andrus, Sceales, Starke & [73] Assignee: EST Company Incorporated, S ll Grafton, Wis.
[22] Filed: Feb. 5, 1973 ABSTRACT [21] App1 N0 :329,525 A tilt-swivel mechanism for a chair. The tilt-swivel mechanism includes a vertical shaft journaled for rotation within the base or column of the chair. The upper U-S- Clend portion of the haft arries a mounting plate and a Int. Cl. haped upper plate is ecured to the bottom pan Of Search of the chair eat and is to the mounting plate 243/384 so that the upper plate, as well as the seat, can pivot about the hinge pin. A resilient block of rubber or References Cited plastic material is located between the bottom surface UNITED STATES PATENTS of the upper plate and a cap secured to the upper end 165,718 7/1875 Doremus 248/375 of the Shaft AS the Seat tilts rearwardly, the bottom 2 1 4 9 3 12 1939 g 75 surface of the upper plate pivots upwardly to com- 2,228,7l9 l/l94l 248/375 press the resilient block against the cap and cushion 2,365,468 12/1944 248/375 X the tilting action. 3,206,153 9/1965 297/302 X 3,656,805 4/1972 Engstrom 297/302 6 Clam, 4 Drawing Figures 1 TILT-SWIVEL MECHANISM FOR A CHAIR BACKGROUND OF THE INVENTION Many chairs incorporate a tilt-swivel mechanism which not only enables the chair to swivel or rotate with respect to the base but also to tilt or pivot rearwardly. To cushion the tilting action and provide a return to the upright position, a spring assembly is normally utilized with the chair. In one common form of tilt-swivel mechanism coil springs are utilized for this function. To provide the necessary cushioning action, a coil spring of substantial length would normally be required, and thus in order to decrease the overall length of the spring, it is common practice to employ a pair of side-by-side coil springs. The use of the coil springs in the conventional tilt-swivel mechanism detracts from the appearance of the chair for the springs are readily visible, and occasionally clothing or stockings may catch on the exposed springs or spring supports. To camouflage the springs, the springs are often painted the color of the chair base, while in other cases the springs are enclosed in housings or shields. As afurther disadvantage, the use of coil springs requires occasional lubrication to prevent squeaking and adjustment of the spring force.
In some instances rubber cushions or pads have been utilized in place of the coil springs, and the most common form of rubber cushion is a cylindrical cushion substituted for the conventional coil spring. However, the use of rubber cushions of this type results in a rather unattractive appearance for the chair in that the elongated rubber cushion or its casing is visible to the observer.
SUMMARY OF THE INVENTION The invention relates to an improved tilt-swivel mechanism for a chair. The tilt-swivel mechanism includes a vertical shaft journaled for rotation within the base of the chair, and the upper end portion of the shaft carries a mounting plate. Hinged to the mounting plate for tilting movement is a dish shaped upper plate which is secured to the bottom pan of the chair seat. With the hinge construction, the upper plate and chair seat can tilt in a front-to-rear directionwith respect to the shaft and base of the chair.
To cushion the tilting action, a pair of resilient rubber-like blocks are located between the bottom surface of the upper plate and a cap secured to the upper end of the shaft. As the seat tilts, the bottom surface of the upper plate pivots upwardly to compress the block against the cap and cushion the tilting action.
The tilt-swivel mechanism of the invention is a compact unit in which the resilient cushioning blocks are not exposed and are located entirely within the upper, dish shaped mounting plate.
As the use of the resilient blocks eliminates the conventional coil springs, the need for lubrication is eliminated and there is no necessity for readjusting the cushioning force due to wear or fatigue as is required with coil springs. v
As a further advantage, the tilt-swivel construction has 21 fewer number of parts than conventional tiltswivel mechanisms and thereby has a lower cost.
DESCRIPTION OF THE DRAWINGS In the drawings:
FIG. 1 is a side elevation of a chair incorporating the tilt-swivel construction of the invention;
FIG. 2 is an enlarged side elevation of the tilt-swivel mechanism with parts broken away in section;
FIG. 3 is a view similar to FIG. 2 showing the chair seat in a tilted condition and the rubber blocks compressed, and
FIG. 4 is a section taken along line 4-4 of FIG. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. I illustrates a chair having a base I and a seat 2 which is connected to the base through a tilt-swivel mechanism, indicated generally by 3.
As illustrated in FIGS. 2 and 3, the tilt-swivel mechanism 3 includes a vertical shaft 4, which is mounted for rotation within a bushing 5 in the base 1. Secured to the upper portion of the shaft 4 is a mounting plate 6 which includes a generally flat bottom section 7 and upwardly sloping side edges 8. Ears 9 extend upwardly from the sloping side wall 8 and are provided with aligned openings.
An upper plate 10 is secured to the seat 2 and is mounted for tilting movement with respect to the plate 6. As shown in FIG. 2, the upper plate 10 is provided with a peripheral flange 11 which is secured to the bottom pan of seat 2 by screws or other fasteners. The mounting plate 10 has a generally dish shaped configuration including a downwardly sloping sidewall or body 12 which terminates in a bottom surface 13. Bottom surface 13 is provided with an elongated opening or slot which receives the shaft 4.
To hinge the plate 10 to the mounting plate 6, a hinge pin 14 is secured to the body portion 12 of plate 10, and the ends of the hinge pin project through openings in the body portion 12 and are journaled within the openings in ears 9.
To limit the forward tilting movement of the upper plate 10 and seat with respect to the mounting plate 6, a resilient bumper 15 is utilized. The bumper 15 includes an upper enlarged head 16 and a stem 17, which is secured with an opening in the sloping wall 8 of the mounting plate 6. As the upper plate 10 tilts forwardly, the body portion 12 engages the head 16 of the bumper to limit the forward tilt.
To cushion the rearward tilting action, a pair of resilient blocks 18 are located between the bottom surface 13 of plate 10 and an annular cap 19 secured to the upper end of shaft 4. The bottom surface 13 of plate 10 is provided with a pair of recesses 20 which serve to position the blocks 18 on either side of the shaft 4. In addition, the cap 19 is provided with a downwardly extending rear flange 21 which engages and aligns the rear edges of the blocks 18.
To fabricate the tilt-swivel mechanism of the invention, after attachment of the upper plate 10 to the mounting plate 6 through the hinge pin 14, the resilient blocks 18 are positioned on the bottom surface 13 of the upper plate. The cap 19 is then inserted around the upper end of the shaft and forced downwardly, thereby compressing the blocks. With the blocks in a compressed condition, the upper end of the shaft 4 is upset or swaged outwardly by a staking action to thereby firmly secure the cap to the upper end of the shaft 4.
As the shaft 4 is journaled within the socket 5 in the base, the shaft and seat can rotate freely around the axis of the shaft 4.
When the seat 2 is tilted rearwardly about the axis of the hinge pin 14, the lower surface 13 of the upper plate will pivot upwardly, thereby further compressing the blocks 18 against the fixed cap 19 to cushion the tilting action. When the tilting force is removed, the resiliency of the blocks 18 will urge the upper plate 10 and seat 2 to the original upright position.
While the drawings illustrate two generally cubical blocks 18 being utilized, it is contemplated that the blocks can take any desired configuration, such as cylindrical, sperical, oval or the like. Similarly, while the drawings show two blocks being utilized, it is contemplated that a single annular block can be employed which surrounds the shaft 4, or a series of separate blocks can be spaced around the shaft 4.
The tilt-swivel mechanism of the invention is a compact unit, and as the resilient cushioning blocks 18 are located within the upper plate 10, they are not exposed so that the tilt-swivel mechanism has a more pleasing outer appearance than conventional types using coil springs or other rubber cushioning members.
The tilt-swivel mechanism has a fewer number of parts than conventional tilt-swivel mechanisms, thereby reducing the overall cost of the unit.
While the above description has been directed to a tilt-swivel chair, it is contemplated that the tilt mechanism can also be utilized in a non-swivel type of seating such as used in theaters, airports, multiple chair units for reception rooms, and the like.
Various modes of carrying out the invention are contemplated as being within the scope of the following claims, particularly pointing out and distinctly claiming the subject matter which is regarded as the invention.
I claim 1. A tilt-swivel mechanism for a chair to enable the seat of the chair to swivel as well as tilt to the rear, comprising a supporting structure, a vertical shaft journaled for rotation about its axis with respect to said supporting structure, a mounting plate secured to said shaft and spaced below the upper end of the shaft, an upper dish-shaped annular support member located above said mounting plate, a chair seat secured to said upper support member, said upper support member having a peripheral portion secured to said chair seat and having a central body portion extending downwardly from said peripheral portion and terminating in a generally flat bottom surface spaced beneath said chair seat, said bottom surface having a single operative opening to receive said shaft, hinge means for hinging the upper support member to said mounting plate to enable the upper support member and said chair seat to tilt to the rear, abutment means secured to the upper end of the shaft and located above the bottom surface of said upper support member, and resilient means disposed and held between said abutment means and the bottom surface of said upper support member whereby said resilient means is concealed by said dish-shaped support member, rearward tilting of said chair seat acting to pivot said bottom surface upwardly and compress said resilient means against said abutment means to cushion the tilting action.
2. The structure of claim 1, wherein the bottom surface of said upper support member is provided with an upwardly facing recess to receive said resilient means.
3. The structure of claim 1, and including a resilient bumper interposed between the mounting plate and said bottom surface and located on the opposite side of said shaft from hinge means, said bumper disposed to prevent contact between said upper support member and said mounting plate when the chair seat is in a nontilted position.
4. The structure of claim 1, wherein said abutment means includes a surface extending radially outward from the shaft and engaged with the upper end of said resilient means, and said abutment means also includes a downwardly extending member engaged with the rear end of said resilient means.
5. A tilt-swivel mechanism for a chair to enable the seat of the chair to swivel as well as tilt to the rear, comprising a supporting structure, a vertical shaft journalled for rotation about its axis with respect to said supporting structure, a mounting plate secured to said shaft and spaced below the upper end of the shaft, an upper annular support plate located above said mounting plate, a chair seat secured to said upper support member, said upper support member having a peripheral portion secured to said chair seat and having a central body portion extending downwardly from said peripheral portion and terminating in a bottom surface spaced beneath said chair seat, said bottom surface having an opening to receive said shaft, hinge means for hinging the upper support member to said mounting plate to enable the upper. support member and said chair seat to tilt to the rear, abutment means secured to the upper end of the shaft and located above the bottom surface of said upper support member, and resilient means disposed between said abutment means and the bottom surface of said upper support member, rearward tilting of said chair seat acting to pivot said bottom surface upwardly and compress said resilient means against said abutment means to cushion the tilting action, said resilient means including a pair of resilient members of rubber-like material located laterally with respect to the fore and aft direction of tilt of said seat on opposite sides of said shaft.
6. The structure of claim 5, wherein each resilient member is generally cube-like in shape.

Claims (6)

1. A tilt-swivel mechanism for a chair to enable the seat of the chair to swivel as well as tilt to the rear, comprising a supporting structure, a vertical shaft journaled for rotation about its axis with respect to said supporting structure, a mounting plate secured to said shaft and spaced below the upper end of the shaft, an upper dish-shaped annular support member located above said mounting plate, a chair seat secured to said upper support member, said upper support member having a peripheral portion secured to said chair seat and having a central body portion extending downwardly from said peripheral portion and terminating in a generally flat bottom surface spaced beneath said chair seat, said bottom surface having a single operative opening to receive said shaft, hinge means for hinging the upper support member to said mounting plate to enable the upper support member and said chair seat to tilt to the rear, abutment means secured to the upper end of the shaft and located above the bottom surface of said upper support member, and resilient means disposed and held between said abutment means and the bottom surface of said upper support member whereby said resilient means is concealed by said dish-shaped support member, rearward tilting of said chair seat acting to pivot said bottom surface upwardly and compress said resilient means against said abutment means to cushion the tilting action.
2. The structure of claim 1, wherein the bottom surface of said upper support member is provided with an upwardly facing recess to receive said resilient means.
3. The structure of claim 1, and including a resilient bumper interposed between the mounting plate and said bottom surface and located on the opposite side of said shaft from hinge means, said bumper disposed to prevent contact between said upper support member and said mounting plate when the chair seat is in a non-tilted position.
4. The structure of claim 1, wherein said abutment means includes a surface extending radially outward from the shaft and engaged with the upper end of said resilient means, and said abutment means also includes a downwardly extending member engaged with the rear end of said resilient means.
5. A tilt-swivel mechanism for a chair to enable the seat of the chair to swivel as well as tilt to the rear, comprising a supporting structure, a vertical shaft journalled for rotation about its axis with respect to said supporting structure, a mounting plate secured to said shaft and spaced belOw the upper end of the shaft, an upper annular support plate located above said mounting plate, a chair seat secured to said upper support member, said upper support member having a peripheral portion secured to said chair seat and having a central body portion extending downwardly from said peripheral portion and terminating in a bottom surface spaced beneath said chair seat, said bottom surface having an opening to receive said shaft, hinge means for hinging the upper support member to said mounting plate to enable the upper support member and said chair seat to tilt to the rear, abutment means secured to the upper end of the shaft and located above the bottom surface of said upper support member, and resilient means disposed between said abutment means and the bottom surface of said upper support member, rearward tilting of said chair seat acting to pivot said bottom surface upwardly and compress said resilient means against said abutment means to cushion the tilting action, said resilient means including a pair of resilient members of rubber-like material located laterally with respect to the fore and aft direction of tilt of said seat on opposite sides of said shaft.
6. The structure of claim 5, wherein each resilient member is generally cube-like in shape.
US329525A 1973-02-05 1973-02-05 Tilt-swivel mechanism for a chair Expired - Lifetime US3863982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US329525A US3863982A (en) 1973-02-05 1973-02-05 Tilt-swivel mechanism for a chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US329525A US3863982A (en) 1973-02-05 1973-02-05 Tilt-swivel mechanism for a chair

Publications (1)

Publication Number Publication Date
US3863982A true US3863982A (en) 1975-02-04

Family

ID=23285815

Family Applications (1)

Application Number Title Priority Date Filing Date
US329525A Expired - Lifetime US3863982A (en) 1973-02-05 1973-02-05 Tilt-swivel mechanism for a chair

Country Status (1)

Country Link
US (1) US3863982A (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101167A (en) * 1976-02-06 1978-07-18 Kalmar Lans Landsting Tilting unit for furniture substructures
US4214726A (en) * 1978-11-06 1980-07-29 Steelcase, Inc. Chair control
US4871208A (en) * 1988-09-06 1989-10-03 Dewey Hodgdon Chair tilt control mechanism
US5074618A (en) * 1990-01-31 1991-12-24 Ballard Thomas B Bicycle seat
US5588923A (en) * 1992-08-05 1996-12-31 Callaway Golf Company Golf club head with attached selected swing weight composite
US5626530A (en) * 1992-08-05 1997-05-06 Callaway Golf Company Golf club head with sole bevel indicia
US5951109A (en) * 1997-04-30 1999-09-14 Haworth, Inc. Chairback with side torsional movement
US6059363A (en) * 1997-04-30 2000-05-09 Haworth, Inc. Chairback with side torsional movement
US6176548B1 (en) 1998-10-23 2001-01-23 Haworth, Inc. Tilt mechanism for chair having adjustable spring characteristics
US6209958B1 (en) 1998-10-23 2001-04-03 Haworth, Inc. Universal tilt mechanism for a chair
EP1197168A2 (en) 2000-10-12 2002-04-17 Vitra Patente AG Mounting for a seat
US20070241599A1 (en) * 2006-04-17 2007-10-18 Dewey Hodgdon Chair flexpad support arrangement
US20080191525A1 (en) * 2007-02-14 2008-08-14 Jensen Hans R Seat with adjustable dynamic joint
US7775944B1 (en) 2007-06-07 2010-08-17 Shultz Larry D Kinematic rotating-tilting mechanism
DE102010033021A1 (en) 2010-07-31 2012-02-02 moll Funktionsmöbel GmbH Seat furniture e.g. office chair has resilient damper element that is connected to damper end of supporting arm, to push away damper bearing from pillar
US20130113253A1 (en) * 2009-12-23 2013-05-09 Topstar Gmbh Tilting Device for a Chair
US8540519B1 (en) * 2010-10-21 2013-09-24 James Lauter Seated balancing device
WO2015126671A1 (en) 2014-02-24 2015-08-27 Knoll, Inc. Chair back swivel mechanism
US9192236B2 (en) 2012-07-27 2015-11-24 Kgm Gaming Llc Guard and combination for rotatable or swivel seat and method of installing same
US20160235205A1 (en) * 2013-07-07 2016-08-18 Bock 1 Gmbh & Co. Kg Mechanism for an office chair
US9788659B1 (en) * 2016-04-22 2017-10-17 Tecview Group Co., Ltd. Seat for hip shaking
US10376070B1 (en) * 2018-04-09 2019-08-13 Tecview Group Co., Ltd. Rotatable seat for preventing falling backwards
US11006754B2 (en) * 2018-04-12 2021-05-18 American Leather Operations, Llc Motion chair

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US165718A (en) * 1875-07-20 Improvement in chair-bases
US2184988A (en) * 1935-11-27 1939-12-26 Collier Keyworth Company Chair iron
US2228719A (en) * 1937-04-10 1941-01-14 Harry W Bolens Chair iron
US2365468A (en) * 1940-05-04 1944-12-19 Bassick Co Tilting chair mounting
US3206153A (en) * 1963-02-25 1965-09-14 Bjorgensen Designs Ltd Tilt swivel mechanism for chairs
US3656805A (en) * 1969-09-15 1972-04-18 Interroyal Corp Chair control and support
US3672721A (en) * 1968-11-18 1972-06-27 Stewart Warner Corp Rubber spring assembly for chair control

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US165718A (en) * 1875-07-20 Improvement in chair-bases
US2184988A (en) * 1935-11-27 1939-12-26 Collier Keyworth Company Chair iron
US2228719A (en) * 1937-04-10 1941-01-14 Harry W Bolens Chair iron
US2365468A (en) * 1940-05-04 1944-12-19 Bassick Co Tilting chair mounting
US3206153A (en) * 1963-02-25 1965-09-14 Bjorgensen Designs Ltd Tilt swivel mechanism for chairs
US3672721A (en) * 1968-11-18 1972-06-27 Stewart Warner Corp Rubber spring assembly for chair control
US3656805A (en) * 1969-09-15 1972-04-18 Interroyal Corp Chair control and support

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101167A (en) * 1976-02-06 1978-07-18 Kalmar Lans Landsting Tilting unit for furniture substructures
US4214726A (en) * 1978-11-06 1980-07-29 Steelcase, Inc. Chair control
US4871208A (en) * 1988-09-06 1989-10-03 Dewey Hodgdon Chair tilt control mechanism
US5074618A (en) * 1990-01-31 1991-12-24 Ballard Thomas B Bicycle seat
US5588923A (en) * 1992-08-05 1996-12-31 Callaway Golf Company Golf club head with attached selected swing weight composite
US5626530A (en) * 1992-08-05 1997-05-06 Callaway Golf Company Golf club head with sole bevel indicia
US5951109A (en) * 1997-04-30 1999-09-14 Haworth, Inc. Chairback with side torsional movement
US6059363A (en) * 1997-04-30 2000-05-09 Haworth, Inc. Chairback with side torsional movement
US6176548B1 (en) 1998-10-23 2001-01-23 Haworth, Inc. Tilt mechanism for chair having adjustable spring characteristics
US6209958B1 (en) 1998-10-23 2001-04-03 Haworth, Inc. Universal tilt mechanism for a chair
EP1197168A2 (en) 2000-10-12 2002-04-17 Vitra Patente AG Mounting for a seat
EP1197168A3 (en) * 2000-10-12 2003-07-30 Vitra Patente AG Mounting for a seat
US20070241599A1 (en) * 2006-04-17 2007-10-18 Dewey Hodgdon Chair flexpad support arrangement
US20080191525A1 (en) * 2007-02-14 2008-08-14 Jensen Hans R Seat with adjustable dynamic joint
US7806479B2 (en) 2007-02-14 2010-10-05 Wisys Technology Foundation Seat with adjustable dynamic joint
US7775944B1 (en) 2007-06-07 2010-08-17 Shultz Larry D Kinematic rotating-tilting mechanism
US8888184B2 (en) * 2009-12-23 2014-11-18 Topstar Gmbh Tilting device for a chair
US20130113253A1 (en) * 2009-12-23 2013-05-09 Topstar Gmbh Tilting Device for a Chair
DE102010033021A1 (en) 2010-07-31 2012-02-02 moll Funktionsmöbel GmbH Seat furniture e.g. office chair has resilient damper element that is connected to damper end of supporting arm, to push away damper bearing from pillar
DE102010033021B4 (en) * 2010-07-31 2016-05-19 moll Funktionsmöbel GmbH seating
US8540519B1 (en) * 2010-10-21 2013-09-24 James Lauter Seated balancing device
US9737148B2 (en) 2012-07-27 2017-08-22 Kgm Gaming Llc Guard and combination for rotatable or swivel seat and method of installing same
US9192236B2 (en) 2012-07-27 2015-11-24 Kgm Gaming Llc Guard and combination for rotatable or swivel seat and method of installing same
US20160235205A1 (en) * 2013-07-07 2016-08-18 Bock 1 Gmbh & Co. Kg Mechanism for an office chair
US9839296B2 (en) * 2013-07-07 2017-12-12 Bock 1 Gmbh & Co. Kg Mechanism for an office chair
US9380879B2 (en) 2014-02-24 2016-07-05 Knoll, Inc. Chair back swivel mechanism
WO2015126671A1 (en) 2014-02-24 2015-08-27 Knoll, Inc. Chair back swivel mechanism
US9788659B1 (en) * 2016-04-22 2017-10-17 Tecview Group Co., Ltd. Seat for hip shaking
US20170303691A1 (en) * 2016-04-22 2017-10-26 Tecview Group Co., Ltd. Seat for hip shaking
US10376070B1 (en) * 2018-04-09 2019-08-13 Tecview Group Co., Ltd. Rotatable seat for preventing falling backwards
US11006754B2 (en) * 2018-04-12 2021-05-18 American Leather Operations, Llc Motion chair
US11583085B2 (en) 2018-04-12 2023-02-21 American Leather Operations, Llc Motion chair
US11910932B2 (en) 2018-04-12 2024-02-27 American Leather Operations, Llc Motion chair

Similar Documents

Publication Publication Date Title
US3863982A (en) Tilt-swivel mechanism for a chair
US2818911A (en) Tiltable office chair
US5601335A (en) Auditorium seating system
US4183494A (en) Swiveled leaf-spring undercarriage for rocking chair
CA1227117A (en) Rocking chair
US2489981A (en) Seat suspension for all implements
US6523895B1 (en) Ergonomic chair
US4131260A (en) Chair seat mount which permits the seat to tilt forward
US4852943A (en) Pedestal chairs
GB1453136A (en) Chair or couch
JPH0146127B2 (en)
GB2206487B (en) Tilt control assembly for chair
US3417956A (en) Chair control
US5452937A (en) Plate for connecting the seat, back and legs, especially for chairs
GB2324031A (en) Swivelling and tilting chair
US6161897A (en) Chair construction
US2847062A (en) Chair back construction
US6296309B1 (en) Chair construction
AU1666088A (en) Seat furniture
US2524624A (en) Resilient chair back mounting
CA1156136A (en) Mounting device for a chair seat
US5112108A (en) Seating furniture
US3544159A (en) Tiltable chair construction
US2687166A (en) Tilting chair
US2441251A (en) Chair iron for tilting seats