US20160088946A1 - Armrest, in particular for an office chair - Google Patents

Armrest, in particular for an office chair Download PDF

Info

Publication number
US20160088946A1
US20160088946A1 US14/889,909 US201414889909A US2016088946A1 US 20160088946 A1 US20160088946 A1 US 20160088946A1 US 201414889909 A US201414889909 A US 201414889909A US 2016088946 A1 US2016088946 A1 US 2016088946A1
Authority
US
United States
Prior art keywords
armrest
arm support
arm
lever
column
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.)
Abandoned
Application number
US14/889,909
Other languages
English (en)
Inventor
Hermann Bock
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.)
Bock 1 GmbH and Co KG
Original Assignee
Bock 1 GmbH and Co KG
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 Bock 1 GmbH and Co KG filed Critical Bock 1 GmbH and Co KG
Assigned to BOCK 1 GMBH & CO. KG reassignment BOCK 1 GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOCK, HERMANN
Publication of US20160088946A1 publication Critical patent/US20160088946A1/en
Abandoned 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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • A47C1/0303—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable rectilinearly in vertical direction
    • A47C1/0305—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable rectilinearly in vertical direction by peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C7/54—Supports for the arms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests

Definitions

  • the invention relates to an armrest, in particular for an office chair or the like, having an armrest support and having an armrest column which is height adjustable on the armrest support.
  • armrests are known in multiple realizations from the prior art.
  • a disadvantage in the case of many of said known armrests is that comparatively elaborate and time-consuming structural solutions are used for the height adjustment. This does not just result in comparatively high material and production costs. As a plurality of individual parts often have to be connected together in an elaborate and time-consuming manner, this also leads to relatively high assembly costs.
  • One object of the present invention is to provide an armrest which is designed in a particularly simple manner in order, as a result, to reduce both the material and production costs and the assembly costs without having to do without the usual functionality.
  • the armrest according to the invention is characterized in that the armrest column comprises an actuating element, which is connected to it in an integral manner, for altering the height position of the armrest column.
  • an armrest which is designed in a particularly simple manner is created where both the material and production costs and the assembly costs are reduced compared to conventional solutions without having to do without the usual functionality, such as height adjustment.
  • the actuating element is preferably a pushbutton, that is to say an element which is operable by means of pressure and which actuates the height adjusting means, preferably by the actuating element releasing or blocking a locking mechanism in a direct or indirect manner.
  • the actuating element is operatively connected in a direct or indirect manner to an operating element which is essential to the functioning of the height adjusting means, in particular the triggering of the height adjustment, such as, for example, to a locking bar of a multi-position locking mechanism.
  • the armrest according to the invention in its embodiments is distinguished, as is described in more detail below, above all by three things, firstly—as many operating elements as possible are realized in a combined, preferably integral manner, as a result of which the overall number of required components is very low, secondly—said components are able to be produced in a simple and cost-efficient manner as a result of said integral design, for example as a result of a plastics material injection moulding method or the like, and thirdly—all the components are realized in a very assembly-friendly manner, in particular in such a manner that the armrest is preferably able to be completely installed without using any screws. All this contributes to a clear reduction in material, production and assembly costs compared to conventional armrests.
  • actuating element is incorporated into one of the side surfaces of the armrest column, it is not only producing both parts simultaneously in a very simple manner that is made possible.
  • a particularly elegant, flat armrest column is also produced without any actuating elements which protrude, project out of the armrest column or stand away from the armrest column.
  • connection between the actuating element and the armrest column serves at the same time in other words as a pivot point of the lever such that no additional components are necessary for this purpose.
  • connection to the armrest column is effected by means of two oppositely situated points on the lever longitudinal edges, has proved to be particularly suitable, preferably by means of material webs allowed to remain from the manufacturing of the armrest column such that the armrest column and the actuating element are once again connected together in an integral manner.
  • a realization where the actuating element is connected by means of material webs is also consequently advantageous because the placing of the material webs and, as a result, the defining of the length of the lever arms of the actuating element is freely selectable independently of other structural constraints.
  • the armrest comprises an arm support mounted on the armrest column so as to be length adjustable
  • a multifunctional connecting element which is preferably connected in an integral manner to the one end of the armrest column, carries the arm support, guides it when the length thereof is adjusted and fixes it in its respective adjustment position.
  • the connecting element comprises a substantially U-shaped cross section which serves for receiving and guiding the arm support has proved to be exceedingly advantageous. If guide rails which, in the mounted state, engage in corresponding guide grooves which are provided on the arm support, preferably on the outside surface, in particular on the outside longitudinal sides of the arm support, are mounted on the U-portions of the connecting element, preferably on the free ends of said U-portion, this then does not serve for just holding and guiding the arm support. At the same time, as a result a captive connection can be produced in a structurally simple manner between the arm support and the connecting element.
  • the guide grooves are realized open at one end, a particularly simple assembly of the arm support on the connecting element is possible, as the arm support with its guide grooves has only then to be pushed onto the guide rails of the connecting element.
  • the guide groves are then preferably realized in a closed manner at the opposite end such that it is only possible to push the arm support on from one end and consequently it can be carried out in a more error-proof manner. It is particularly advantageous when a pull-out safety device is provided at the same time, preventing the arm support, once mounted, from being separated unintentionally from the connecting element.
  • an alignment locking mechanism which prevents the connecting element from being removed out of the guide grooves when the arm support is moved in the longitudinal direction, is realized for this purpose in one of the open end regions of at least one of the guide grooves.
  • the alignment locking mechanism comprises a blocking means which is preferably realized in an integral manner with the arm support, is advantageously self-cushioning and projects in such a manner into the one guide groove that it is pressed out of the guide groove when the arm support is first mounted and then returns automatically into its initial position blocking the guide groove in the opposite direction. No separate components are consequently necessary here either for providing the pull-out safety device.
  • the connecting element comprises a latching lug, which is connected to the U-base preferably in an integral manner and, in the mounted state, realizes a latching locking mechanism, preferably a shear latching locking mechanism with frictional engagement, which engages in latching recesses which are provided on the bottom surface of the arm support.
  • the preferably self-cushioning latching lug serves, in this case, as a latching blocking means and the latching recesses serve as latching grooves which define a number of latching positions arranged in the longitudinal direction of the arm support.
  • the non-positive locking mechanism produced as a result at both ends simply creates increased resistance against the movement in the latching positions, which can be overcome by a correspondingly increased force.
  • the arm support is consequently situated in the relevant positions—the neutral position or the latching position—by way of a movement effected with moderate force.
  • the latching lug in this case, is preferably formed in such a manner that the U-base of the connecting element comprises at said point a bulge or another suitable deformation which points in the corresponding direction such that an additional component serving as a latching lug is not required.
  • the arm support includes an arm support carrier and an arm support cushion which is arranged on the arm support carrier.
  • the arm support cushion covers at least one transverse surface of the arm support carrier at least in part. It is particularly advantageous when the arm support cushion covers the arm support carrier on at least one transverse surface of the arm support up to the bottom edge of said arm support carrier. If the arm support cushion covers the front transverse surface of the arm support when viewed in the longitudinal direction, a padded and as a result particularly grippy contact region for the fingers of the occupant of the chair is produced. This allows the arm support to be longitudinally adjusted in a very comfortable manner.
  • said contact region is positioned at an angle that is advantageous for force transmission onto the arm support such that, proceeding from the initial position which is defined by the frontmost position of the armrest and moving rearwards, a particularly small amount of force is required for a length adjustment.
  • the grip and manageability of the arm support is increased when the arm support cushion also covers the arm support carrier on the opposite transverse surface of the arm support and/or on the longitudinal sides of the arm support so far as is allowed by the guide grooves for the connecting element.
  • FIG. 1 shows an outside side view of an armrest from the left
  • FIG. 2 shows a side view of the armrest from the right, sectioned in the sheet plane (AA) (vertical section through the armrest column and arm support),
  • FIG. 3 shows a view of the armrest sectioned along the line BB (vertical section through the armrest column and the arm support),
  • FIG. 4 shows a schematic diagram of the method of operation of the locking bar device for height adjustment
  • FIG. 5 shows a view of the armrest sectioned along the line CC (vertical section through the arm support)
  • FIG. 6 shows a view of the armrest sectioned along the line DD (horizontal section through the arm support).
  • the armrest 1 for an office chair is constructed from comparatively few components.
  • the armrest 1 comprises, among other things, an armrest support 2 , an armrest column 3 which is arranged on the armrest support 2 so as to be height adjustable and is realized in the manner of a sleeve and an arm support 4 which is mounted on the armrest column 3 so as to be length adjustable.
  • a horizontal leg 6 which is integrally moulded on the vertical leg 5 of the armrest support 2 serves for fastening the armrest 1 to the base of the office chair.
  • a connecting element 7 is mounted in an integral manner on the top end of the armrest column 3 .
  • the connecting element 7 carries the arm support 4 , guides the arm support 4 during its length adjustment and fixes it in its respective adjustment position.
  • the connecting element 7 includes a substantially U-shaped cross section which serves for receiving and guiding the arm rest 4 .
  • Guide rails 9 which, in the mounted state, engage in corresponding guide grooves 12 which are provided on the outside longitudinal sides 11 of the arm support 4 , are mounted on the free ends of the U-portion 8 of the connecting element 7 .
  • the guide grooves 12 are realized open at one end, namely, when viewed in the longitudinal direction 13 of the arm support which is identical to the longitudinal direction of the chair, toward the rear. To mount the arm support 4 , it simply has to be pushed with its guide grooves 12 onto the guide rails 9 of the connecting element 7 .
  • the guide grooves 12 are realized in a closed manner at the opposite end, that is to say toward the front.
  • An alignment blocking means which prevents the connecting element 7 from being removed out of the guide grooves 12 when the arm support 4 is moved in the longitudinal direction 13 , is realized in the two open end regions 14 of the guide grooves 12 .
  • Said pull-out safety device is realized by blocking means 15 which project into the guide groove 12 and which, when the arm support 4 is first mounted, are pressed out of the guide groove 12 and then automatically return into their initial position blocking the guide groove 12 in the opposite direction.
  • the connecting element 7 comprises a self-cushioning latching lug 17 which is connected in an integral manner to the U-base 16 , is defined by a bulge of the U-base 16 and, in the mounted state, realizes a shear latching locking mechanism which engages in latching recesses 19 which are provided on the bottom surface 18 of the arm support 4 .
  • the latching recesses 19 define a number of latching positions which are arranged in the longitudinal direction 13 of the arm support 4 .
  • the arm support 4 includes an arm support carrier 21 and an arm support cushion 22 which is arranged on the arm support carrier 21 .
  • the arm support cushion 22 covers the front transverse surface 23 of the arm support 4 , when viewed in the longitudinal direction 13 , up to the bottom edge 24 of the arm rest carrier 21 .
  • the armrest column 3 comprises an actuating element 26 which is connected thereto in an integral manner for altering the height position of the armrest column 3 .
  • the actuating element 26 is incorporated into the column front side 27 , in other words into the front side surface of the armrest column 3 .
  • the actuating element 26 in this case, is realized as a two-armed lever which is connected to adjacent side surface parts 29 of the armrest column 3 , thereby realizing the lever pivot point 28 which is shown in a symbolic manner in the Figures.
  • the connecting of the actuating element 26 to the armrest column 3 is effected in an integral manner by means of two material webs 31 at oppositely situated points on the lever longitudinal edges 32 .
  • the material strength and material characteristics of the material webs 31 are realized such that they make it possible in a reliable manner for the lever 26 to be deflected at a sufficient pivot angle for a sufficient number of repeat actions over the service life of the armrest 1 .
  • the top lever arm 33 which points in the direction of the arm support 4 , comprises on its outside surface a surface structuring 34 in the form of some ribs. Said structuring 34 serves, on the one hand, for feeling for the actuating surface 35 of the lever arm 34 in a blind manner. On the other hand, it results in improved operability of the actuating element 26 .
  • the actuating element 26 is placed in such a manner in the armrest column 3 that the position of the top lever arm 33 easily enables one-handed operation of the height adjustment even when a hand is placed on the arm support 4 .
  • the top lever arm 33 pivots inward against the pressure of a spring element 37 which is shown purely in a symbolic manner, i.e. into the interior of the armrest column 3 , the pivoting movement 39 being defined by a stop member 38 which is also only shown in a symbolic manner.
  • recesses 42 which serve for realizing a multi-point locking mechanism, are provided arranged one above another in the displacement direction 41 on the armrest support 2 , the recesses 42 being open in the direction of the column front side 27 .
  • a locking bar 44 which is mounted on the free end of the bottom lever arm 43 , engages in one of said recesses 42 . If the top lever arm 33 then pivots inward, the bottom lever arm 43 pivots outward at the same time, i.e. out of the side surface of the armrest column 3 . As a result, the locking bar 34 is also pivoted out of the respective recess 42 , the locking mechanism is released and the armrest column 3 is able to be height adjusted. If the actuating element 26 is no longer actuated, no more pressure is therefore exerted onto the actuating surface 35 , the locking bar 44 engages afresh in a corresponding recess 42 and the height of the armrest column 3 is fixed.
  • the lengths of the lever arms 33 , 43 of the actuating element 26 differ, the lever lengths being adapted to the requirements for secure and reliable actuation of the height adjustment.
  • the top lever arm 33 is shorter than the bottom lever arm m 43 .
  • the invention is not restricted to an arm support that is exclusively length-adjustable but is also transferable in principle to such armrests where the arm support thereof is additionally transversely adjustable.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
US14/889,909 2013-05-08 2014-05-08 Armrest, in particular for an office chair Abandoned US20160088946A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013104809.9 2013-05-08
DE102013104809.9A DE102013104809B4 (de) 2013-05-08 2013-05-08 Armlehne, insbesondere für einen Bürostuhl
PCT/EP2014/001237 WO2014180570A1 (de) 2013-05-08 2014-05-08 Armlehne, insbesondere für einen bürostuhl

Publications (1)

Publication Number Publication Date
US20160088946A1 true US20160088946A1 (en) 2016-03-31

Family

ID=50841734

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/889,909 Abandoned US20160088946A1 (en) 2013-05-08 2014-05-08 Armrest, in particular for an office chair

Country Status (4)

Country Link
US (1) US20160088946A1 (de)
EP (2) EP3108766B1 (de)
DE (1) DE102013104809B4 (de)
WO (1) WO2014180570A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD775846S1 (en) * 2015-09-04 2017-01-10 Zhongshan Shi Songlin Furniture Co., Ltd. Armrest
US10165864B1 (en) * 2017-06-16 2019-01-01 Tung-Hua Su Chair armrest device
US10660445B2 (en) * 2018-10-24 2020-05-26 Tien Ching Fang Height adjustable chair armrest
US10940773B2 (en) 2015-01-26 2021-03-09 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Vehicle seat

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020100136A1 (de) * 2020-01-07 2021-07-08 Yi-Ru Chen Armlehnenmontage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663182B1 (en) * 2000-07-24 2003-12-16 Plasticline Srl Adjustable armrest for chairs
US20090278393A1 (en) * 2008-05-07 2009-11-12 Wen Sang Plastics Co. Ltd. Adjusting Mechanism For Arm Rest

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519794U1 (de) * 1995-12-13 1997-04-10 Ropp Horst Von Der Dipl Ing Armstütze
DE29611267U1 (de) * 1996-07-01 1996-08-29 Dauphin Friedrich W Gmbh Armlehne für Bürostühle
DE19717077B4 (de) * 1997-04-23 2004-11-18 Bock-1 Gmbh & Co. Höhenverstellbare Armlehne, insbesondere für einen Bürostuhl
JP4082532B2 (ja) * 1998-06-05 2008-04-30 株式会社岡村製作所 椅子の肘掛けの高さ調節装置
DE10125996A1 (de) * 2001-05-18 2002-11-21 Bock 1 Gmbh & Co Armlehne, insbesondere für einen Bürostuhl
FR2843533B1 (fr) * 2002-08-14 2004-09-24 Rehau Sa Accotoir ou accoudoir reglable pour fauteuils et plus generalement pour sieges
US7011371B1 (en) * 2004-11-29 2006-03-14 Po-Chuan Tsai Armrest assembly having a height adjustable function
JP2008062015A (ja) * 2006-08-10 2008-03-21 Itoki Corp 椅子
DE102006051731A1 (de) * 2006-10-30 2008-05-08 Bock 1 Gmbh & Co. Kg Höhenverstellbare Armlehne, inbesondere für einen Bürostuhl
DE102008042974B3 (de) * 2008-10-20 2010-04-01 Sedus Stoll Ag Modulare Armlehnenauflage und Stuhl
ATE537801T1 (de) * 2009-03-23 2012-01-15 Taiwan An I Co Ltd Mechanismus zum anpassen von rollstuhlarmlehnen
DE202009010587U1 (de) * 2009-08-05 2010-12-09 Bock 1 Gmbh & Co. Kg Armlehne, insbesondere für einen Bürostuhl
DE202011001282U1 (de) * 2011-01-10 2012-04-18 Bock 1 Gmbh & Co. Kg Armlehne, insbesondere für einen Bürostuhl
TWM419484U (en) * 2011-03-21 2012-01-01 Isotech Products Inc Multi-functional chair armrest adjustment device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6663182B1 (en) * 2000-07-24 2003-12-16 Plasticline Srl Adjustable armrest for chairs
US20090278393A1 (en) * 2008-05-07 2009-11-12 Wen Sang Plastics Co. Ltd. Adjusting Mechanism For Arm Rest

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10940773B2 (en) 2015-01-26 2021-03-09 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Vehicle seat
USD775846S1 (en) * 2015-09-04 2017-01-10 Zhongshan Shi Songlin Furniture Co., Ltd. Armrest
US10165864B1 (en) * 2017-06-16 2019-01-01 Tung-Hua Su Chair armrest device
US10660445B2 (en) * 2018-10-24 2020-05-26 Tien Ching Fang Height adjustable chair armrest

Also Published As

Publication number Publication date
EP2994016A1 (de) 2016-03-16
DE102013104809B4 (de) 2016-08-18
EP3108766A1 (de) 2016-12-28
WO2014180570A1 (de) 2014-11-13
DE102013104809A1 (de) 2014-11-13
EP3108766B1 (de) 2018-04-18

Similar Documents

Publication Publication Date Title
US20160088946A1 (en) Armrest, in particular for an office chair
US9403458B2 (en) Headrest moving device
US8573703B2 (en) Headrest for motor-vehicle seat
EP3127744B1 (de) Schiebevorrichtung für fahrzeugsitz
US8585143B2 (en) Adjustable child safety seat assembly
US7753448B2 (en) Seat position-adjusting device for a highchair
US8459746B2 (en) Adjustable armrest structure for a chair
US10308153B2 (en) Headrest moving device
US8353559B2 (en) Inclination adjustment mechanism for a base of safety seat
CN107054177B (zh) 扶手装置
US20120119051A1 (en) Manually longitudinally adjustable motor vehicle seat
CN110395152B (zh) 儿童座椅
EP3702208B1 (de) Sicherheitssitz für fahrzeug
GB2505993A (en) Shoulder belt height adjustment mechanism for child seat
JP6590673B2 (ja) チャイルドシート
JP6140546B2 (ja) 乗物用シートのスライドレール装置
KR101650477B1 (ko) 헤드레스트 이동장치 어셈블리
KR101971148B1 (ko) 헤드레스트 조절장치
US6517158B1 (en) Height-adjustable armrest assembly
WO2016163286A1 (ja) 車両用シート装置
JP6643708B2 (ja) シートスライド装置
US8651577B2 (en) Adjustment device
US6851752B2 (en) Height adjustment mechanism for an infant support structure
CN112158110B (zh) 儿童座椅
JP5946741B2 (ja) 組付け構造

Legal Events

Date Code Title Description
AS Assignment

Owner name: BOCK 1 GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BOCK, HERMANN;REEL/FRAME:037048/0472

Effective date: 20151110

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION