WO2014109646A1 - Arbre pour garniture - Google Patents

Arbre pour garniture Download PDF

Info

Publication number
WO2014109646A1
WO2014109646A1 PCT/NO2014/050002 NO2014050002W WO2014109646A1 WO 2014109646 A1 WO2014109646 A1 WO 2014109646A1 NO 2014050002 W NO2014050002 W NO 2014050002W WO 2014109646 A1 WO2014109646 A1 WO 2014109646A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
upholstery
string
tensioning system
furniture member
Prior art date
Application number
PCT/NO2014/050002
Other languages
English (en)
Inventor
Aleksander Borgenhov
Sigmund ØVERENG
Original Assignee
Scandinavian Business Seating AS
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 Scandinavian Business Seating AS filed Critical Scandinavian Business Seating AS
Priority to CN201480004384.2A priority Critical patent/CN105007781B/zh
Priority to EP14706133.7A priority patent/EP2943095B1/fr
Publication of WO2014109646A1 publication Critical patent/WO2014109646A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/10—Loose or removable furniture covers
    • A47C31/11—Loose or removable furniture covers for chairs

Definitions

  • the present invention relates to devices and methods of fastening upholstery to furniture. More specifically, the present invention relates to devices comprising a circumferential draw string and a means for locking the drawstring in place once tightened.
  • Furniture may have a frame and one or more portions covered with a sheet material, such as fabric or leather.
  • the sheet material can he provided for decorative purposes or as a seating surface. Sometimes, padding is provided behind the sheet material, for improving seating comfort, and for keeping the sheet material, stretched.
  • the padding is often elastic foam, such as latex or polyethylene.
  • the sheet material is stretched around the padding, and fixed to the furniture using staples or nails forced into a frame member of the piece of furniture.
  • the sheet material may become worn, or lose its form, such that it is necessary to replace it or stretch it.
  • a drawback with the use of nails or staples is that it is time consuming to attach and to detach the sheet, material.
  • furniture members such as seat and arm rest for office chairs, are provided with sheet material provided with a circumferential guiding channel through which a string is led, wherein the sheet material can be cinched around the seat or arm rest by tensioning the string.
  • the string is kept from losing its tension, by means of a cianip device clamping the string to the arm rest or seat.
  • the clamp device may he a self threading screw with a large head or washer pressing the string against a portion of the furniture member.
  • the string self intersects and is fixed by means of a knot. Should the sheet material need re-iensioning or replacement, it may he made by releasing the clamping means, adjusting the tension of the string, and subsequently locking the clamping means.
  • a drawback of using such clamping means is that special tensioning tools are typically needed, for keeping the string properly tensioned during locking of the clamping means. Such special tools are not commonly available. Also, a drawback of clamping means comprising a self-threading screw, is that the screw hole is worn upon tensioning and loosening the screw. Also, it is difficult and requires skill to properly position and tension the sheet material, whilst tensioning the string. Summary
  • upholstery tensioning system comprising a furniture member, a spindle suitable for receiving and winding up string, and locking means configured to optionally prevent the spindle from rotating relative to the furniture member.
  • the furniture member is provided with support means configured to rotatably support the spindle on the furniture member.
  • a string is routed along the circumference of the piece of sheet material, for example through eyelets, or in a channel, provided along the circumference of the piece of sheet material.
  • the piece of sheet material is then wrapped around the piece of furniture,
  • the string is attached to the spindle and the spindle is rotated by means of hand power and/or standard tools such as pliers or wrench, to tension and wind-up the string.
  • the standard tool such as a socket wrench, may be attached to an electric driving means, such as an electric screwdri ver, to speed up rotation. Since both ends of the string are wound up around the spindle during tensioning, the string is normally not visible during standard use of the furniture.
  • the string may be attached to the spindle by winding it around the spindle such that friction keeps it from sliding relative to the spindle. Once the string is properly tensioned, the spindle is prevented from rotating by engagement of the locking means. If the piece of flexible sheet material needs adjustment or replacement, the locking means is temporarily released and the spindle rotated to control the tension of the string.
  • the upholstery tensioning system thus enables tensioning of the string without use of special tools. Further, the system is not prone to wearing. Also, operation of the system is easy and requires no special skill.
  • the locking means may comprise a ratchet device.
  • the ratchet device makes the locking means self-locking, yet easily releasable.
  • the ratchet device may comprise pawls provided on the circumference of the spindle, and matching teeth provided on the furniture member.
  • the pawls extending from the spindle are biased against the teeth of the furniture member, to slide over the teeth during rotation of the spindle in one direction, and to grip the teeth at rotation in the opposite direction to thereby prevent further rotation in said opposite direction.
  • the pawls may be integrally formed with the spindle. Integrating the pawls with the spindle reduces the number of parts needed, and provides a more robust design.
  • the pawls may be distributed around the spindle such as to provide for balanced movement of the spindle around its rotational center.
  • the pawl is thereby easy to install by simply pushing it in place whilst rotating it. Further, there is no need for a central axial connection between spindle and support means for controlling rotation of the spindle.
  • the pawls may be evenly distributed around the rotational center of the spindle.
  • the spindle may be provided with string locking means. By locking a portion of the string with the locking means, it is possible to wind up string without the string slipping relative to the spindle and without relying solely on friction between string and spindle.
  • the locking means may comprise a recess provided in a top flange of the spindle, said flange extending radially outwards from a core of the spindle. Since the recess extends radially outwards, the string cannot be pulled out of the recess by tensioning of the string around the core of the spindle.
  • the spindle may be provided with gripping means for engagement with a standard tool, such as screw driver, wrench or hex key.
  • the gripping means may form a hex-head.
  • An aspect of the invention relates to a piece of furniture comprising an upholstery tensioning system according to the above described aspect. Production and service of such furniture is made much easier because of the provision of the inventive system.
  • a further aspect of the invention relates to a method of tensioning upholstery on a furniture member, comprising the steps of: cinchably attaching a string to the upholstery material to be tensioned, attaching the string to a spindle rotatably supported on the furniture member and suitable for receiving and winding up string, rotating the spindle to wind up string and thereby cinch and tension the upholstery, and locking the spindle to prevent it from rotating,
  • tensioning of upholstery is very efficient and may be performed by one person, since that person can focus on rotating the spindle and fixing only the spindle, and not a plurality of staples and screws.
  • Fig. 1 shows a perspective view of an upholstery tensioning system according to an embodiment, of the invention.
  • Fig. 2 shows a top view of the system also shown in Fig. 1.
  • Fig. 3 show's a side view of a spindle being part of the system also shown in Figs. 1-2.
  • Fig, 4 shows atop view of the spindle also shown in Fig. 3.
  • an upholstery tensioning system comprises a spindle 1 suitable for receiving and. winding up string 2.
  • the spindle 1 is attached to a furniture member 3 by a support means 4 comprising a central axis 5 and a circular recess at its circumference provided with teeth 10.
  • a top portion of the central axis 5 is provided with a plurality of snap locking tongues, configured to enable the spindle 1 to be brought onto the central axis 5, into the recess, and snap locked in place. The snap-lock thus allows the spindle 1 to be fitted upside-down without falling off the furniture member 3.
  • the spindle 1 is provided with three pawls 6, 7, 8 evenly distributed around the rotational axis 9 of the spindle 1.
  • the pawls 6, 7, 8 are biased against the teeth 10 of the support means 4 at rotation of the spindle 1, so as to ratchedly engage with the teeth 10 and thereby allo w rotation of the spindle 1 in one direction, whilst preventing rotation of the spindle 1 in the opposite direction.
  • the pawls 6, 7, 8 are integrally formed with the spindle 1 by injection molding of the spindle.
  • the spindle 1 is made of a fiberglass-reinforced plastic.
  • each pawl 6, 7, 8 comprises a rigid base portion 11 and a tongue 12 extending from the base portion 11.
  • the pawls 6, 7, 8 are designed to fit into the recess of the support means 4 with the pawls 6, 7, 8 aligned with the teeth 10 as shown in Fig, 2.
  • this design of the spindle 1 allows the spindle 1 to be fitted without bending or moving the pawls 6, 7, 8, and hence provides for easy installation.
  • a front portion 13 of each respective base 11 portion is radially inwardly inclined, such that a lead-in portion is created on each pawl 6, 7, 8.
  • the lead-in portions lead the teeth 10 onto the pawls 6, 7, 8 at rotation of the spindle 1. This provides for smooth movement of the spindle 1 at rotation, and enables the tongues 12 to gradually bend and move.
  • string 2 is routed in a channel of the upholstery to be tensioned, to form a loop
  • a routing pin 14 is provided on the furniture member 4 to enable controlled redirection of the string 2 from the loop to the spindle 1.
  • the spindle 1 comprises a core 15, a top flange 16, and a bottom flange 17.
  • the top flange 16 is hex-shaped to enable convenient rotation of the spindle by means of a commonly available tool, such as pliers or wrench.
  • the top flange 16 is provided with two opposite recesses 18, 19 extending radially outwards from the core 15.
  • the recesses 18, 19 are adapted to receive and lockingly engage with string 2 to be wound onto the core 15.
  • the core 15 is provided with a central cylindrical recess 20 for receiving the central axis 5 of the support means 4.
  • a top portion of the cylindrical recess 20 is provided with a further circumferential recess or shelf 21 configured to receive protrusions of the snap locking tongues of the central axis 5,

Landscapes

  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Clamps And Clips (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Hinges (AREA)
  • Glass Compositions (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Connection Of Plates (AREA)

Abstract

La présente invention concerne un système de tensionnement de garniture, comprenant un élément d'ameublement, un arbre adapté pour accueillir et enrouler une ficelle, et des moyens de verrouillage conçus pour éventuellement empêcher l'arbre de pivoter par rapport à l'élément d'ameublement. Ledit élément d'ameublement est pourvu de moyens de support conçus pour soutenir en rotation l'arbre dans une position prédéfinie sur l'élément d'ameublement.
PCT/NO2014/050002 2013-01-10 2014-01-08 Arbre pour garniture WO2014109646A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480004384.2A CN105007781B (zh) 2013-01-10 2014-01-08 装饰材料主轴
EP14706133.7A EP2943095B1 (fr) 2013-01-10 2014-01-08 Arbre pour garniture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20130056 2013-01-10
NO20130056A NO339352B1 (no) 2013-01-10 2013-01-10 Møbeltrekkspindel

Publications (1)

Publication Number Publication Date
WO2014109646A1 true WO2014109646A1 (fr) 2014-07-17

Family

ID=50156873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2014/050002 WO2014109646A1 (fr) 2013-01-10 2014-01-08 Arbre pour garniture

Country Status (4)

Country Link
EP (1) EP2943095B1 (fr)
CN (1) CN105007781B (fr)
NO (1) NO339352B1 (fr)
WO (1) WO2014109646A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018202390A1 (de) * 2018-02-16 2019-08-22 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeugsitz, hiermit ausgestattetes Kraftfahrzeug sowie Verfahren zum Einstellen einer Bezugsspannung des Kraftfahrzeugsitzes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985222A (en) * 1933-12-01 1934-12-18 James W Menhall Protective covering for automobile seats
US2842189A (en) * 1956-11-13 1958-07-08 Herbert E Gratt Protective cover for furniture and the like
US3003816A (en) * 1957-09-27 1961-10-10 Sturgis Posture Chair Co Tightener apparatus for removable cover of chair back or chair seat and the like
GB950122A (en) * 1961-11-10 1964-02-19 Minty Ltd Improvements in or relating to covers for seats, settees or the like

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH51426A (fr) * 1910-03-26 1911-09-01 Alfred Puthod Planche à repasser
US5529373A (en) * 1994-06-27 1996-06-25 Hon Industries Inc. Apparatus and method for covering a chair form with fabric
GB2433200B (en) * 2005-12-15 2008-05-28 R G E Engineering Company Upholstering a padded support for a chair
US20070200407A1 (en) * 2006-02-27 2007-08-30 Eberlein David C Seating unit with adjustable components
CN201042323Y (zh) * 2007-05-18 2008-04-02 林天寿 沙发套
CN201147076Y (zh) * 2007-12-27 2008-11-12 马跃凌 可拆卸床椅面勾

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985222A (en) * 1933-12-01 1934-12-18 James W Menhall Protective covering for automobile seats
US2842189A (en) * 1956-11-13 1958-07-08 Herbert E Gratt Protective cover for furniture and the like
US3003816A (en) * 1957-09-27 1961-10-10 Sturgis Posture Chair Co Tightener apparatus for removable cover of chair back or chair seat and the like
GB950122A (en) * 1961-11-10 1964-02-19 Minty Ltd Improvements in or relating to covers for seats, settees or the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018202390A1 (de) * 2018-02-16 2019-08-22 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeugsitz, hiermit ausgestattetes Kraftfahrzeug sowie Verfahren zum Einstellen einer Bezugsspannung des Kraftfahrzeugsitzes
US11208017B2 (en) 2018-02-16 2021-12-28 Bayerische Motoren Werke Aktiengesellschaft Motor vehicle seat, motor vehicle equipped therewith and method for adjusting a cover tension of the motor vehicle seat

Also Published As

Publication number Publication date
CN105007781A (zh) 2015-10-28
EP2943095A1 (fr) 2015-11-18
CN105007781B (zh) 2017-07-14
NO339352B1 (no) 2016-12-05
EP2943095B1 (fr) 2018-03-21
NO20130056A1 (no) 2014-07-11

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