EP1616504A2 - Teleskopische Armlehne - Google Patents

Teleskopische Armlehne Download PDF

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Publication number
EP1616504A2
EP1616504A2 EP05012816A EP05012816A EP1616504A2 EP 1616504 A2 EP1616504 A2 EP 1616504A2 EP 05012816 A EP05012816 A EP 05012816A EP 05012816 A EP05012816 A EP 05012816A EP 1616504 A2 EP1616504 A2 EP 1616504A2
Authority
EP
European Patent Office
Prior art keywords
support portion
armrest
seating
extended position
spring
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.)
Withdrawn
Application number
EP05012816A
Other languages
English (en)
French (fr)
Other versions
EP1616504A3 (de
Inventor
Armando Donati
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.)
Donati SpA
Original Assignee
Donati SpA
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 Donati SpA filed Critical Donati SpA
Publication of EP1616504A2 publication Critical patent/EP1616504A2/de
Publication of EP1616504A3 publication Critical patent/EP1616504A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • 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

Definitions

  • the present invention relates to a telescopic armrest, particularly a manual operating telescopic armrest for seating.
  • the extensible armrests are usually provided with a movable portion, having the function of holding the seating user's arm, telescopically coupled with an engaging portion integral to the seating, for example fastened to the frame thereof.
  • the coupling can be manually operated by the user, either directly or through levers, buttons or devices equivalent thereto and generally allows the support portion to be moved between a least extended position, at which it is at the minimum height relative to the seating seat, and a most extended position, at which it is at the maximum height relative to the seat.
  • the extensible armrests have to be manually raised by the user until the desired position has been obtained.
  • the seating user usually grips the support portion of the armrest and, after its respective coupling with the engaging portion has been released, pulls it upwards. After the support portion has been set at the desired height, the coupling can be locked.
  • the height adjustment of the conventional extensible armrests provides that the user makes movements which are often uneasy or in any case unpractical. Moreover, due to the uneasy use, the armrests are often subject to jamming when the support portion is moved with reference to the engaging portion.
  • the object of the present invention is to provide an armrest for seating, which is height adjustable and solves the drawbacks of the conventional armrests of the same type, thus being further easy to be manufactured and cost-effective.
  • an armrest to be associated to a seating, of the type comprising a support portion for the arm of a user of said seating, wherein said support portion is telescopically coupled with an engaging portion of the armrest with said seating, the telescopic coupling between said support and engaging portions being capable of being manually operated and providing a plurality of intermediate stop points between a least extended position and a most extended position of the armrest, characterized in that it comprises means for thrusting said support portion towards said most extended position.
  • the thrust means comprise at least one resilient element interposed between the support portion and the engaging portion.
  • the resilient element is a spring. The spring is compressed when said support portion is in the least extended position and, when the user operates the telescopic coupling, it stretches and thrusts the support portion in the expected direction for the extension thereof.
  • the resilient element for example the spring
  • the resilient element produces a thrust sufficient to raise the support portion of the armrest with no need for the user's external action.
  • the support portion is induced to extend by the spring.
  • the same support portion has achieved the desired position, for example the height of the seating seat that the user desires, the same support portion can be locked.
  • the elastic constant of the spring is such as to allow the seating user to bring the support portion back to the least extended position, i.e. the minimum height relative to the seat, by compressing the spring, without too much effort.
  • the coupling between the support element and the engaging element comprises a toothed element, or provided with a plurality of holes, integral with the engaging portion, the teeth/holes of which each corresponds to an intermediate stop point, and a pawl movably fastened to the support portion and capable to be engaged with the above-mentioned teeth/holes.
  • the pawl can be operated, either directly or indirectly through gears, levers or similar devices, by means of a button provided at the support portion of the armrest.
  • Fig. 1 shows a cross section of an armrest according to the invention.
  • Fig. 1 shows an armrest 1 according to the present invention, capable to be associated to a seating (not shown), comprising a support portion 2 for a user's arm and an engaging portion 3 with said seating.
  • Armrest 1 is of an extensible type, i.e. height adjustable.
  • support portion 2 is telescopically coupled with engaging portion 3 which is, in turn, fastened to the seating for example by means of screws, bolts, etc..
  • portion 2 is can be moved with reference to portion 3 along Z-axis.
  • Armrest 1 is provided with manual operating means which allow support portion 2 to be locked/released relative to engaging portion 3.
  • These means comprise a button 4 acting on a lever 5 being fastened to portion 2 of armrest 1 by means of hinge 6.
  • a pawl 7 suitable to engage corresponding holes, cavities, teeth, etc.. (generically indicated with numeral of reference 9), of an element 8 integral to engaging portion 3.
  • Pawl 7 is usually held in an engaging position with element 10 due to the thrust generated by a spring 8.
  • the pressure exerted by the armrest user on button 4 causes lever 5 to oscillate in a direction which is opposite to the direction of the thrust of spring 8 and therefore it causes pawl 7 to disengage from its corresponding hole, tooth, etc., 9, of element 10. Thereby, the support portion 2 can be disengaged from engaging portion 3.
  • the release of button 4 causes spring 8 to thrust pawl 7 towards element 10 so as to engage a hole 9.
  • tooth, hollow 9 of element 10 corresponds a different extension of portion 2 of armrest 1.
  • the least extended position of support portion 2 has been indicated with letter A, whereas the most extended portion has been indicated with letter B.
  • the armrest 1 is provided with a resilient element having the function of thrusting support portion 2 towards position B when pawl 7 does not engage the element 10.
  • the resilient element 11 is a spring interposed between portions 2 and 3 of armrest 1, preferably between lower end 12 of support portion 2 and a suitable surface 13 of engaging portion 3.
  • armrest 1 The operation of armrest 1 is facilitated compared to what has been provided for conventional armrests.
  • spring 11 provides for the raising of portion 2 along Z-axis, the user is not obliged to make uneasy movements in order to adjust the height of the same portion 2. It is sufficient to push button 4 in order to disengage portion 2 and obtain the extension movement thereof.
  • the user locks the position thereof by releasing button 4.
  • the elastic constant of spring 11 is selected such that the movement which the user has to make in order to compress it requires a least effort and such that its stretching is gradual, i.e. with a moderate speed.
  • Armrest 1 according to the invention is particularly easy to be adjusted and cost-effective to be manufactured. Furthermore due to the fact that the moving of portion 2 is controlled by spring 11, its sliding inside engaging portion 3 is subject to least interferences in a transversal direction to Z-axis and this drastically reduces the jamming possibilities.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Passenger Equipment (AREA)
  • Fishing Rods (AREA)
EP05012816A 2004-07-16 2005-06-15 Teleskopische Armlehne Withdrawn EP1616504A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000343U ITMI20040343U1 (it) 2004-07-16 2004-07-16 Bracciolo telescopico

Publications (2)

Publication Number Publication Date
EP1616504A2 true EP1616504A2 (de) 2006-01-18
EP1616504A3 EP1616504A3 (de) 2006-03-29

Family

ID=35466331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05012816A Withdrawn EP1616504A3 (de) 2004-07-16 2005-06-15 Teleskopische Armlehne

Country Status (2)

Country Link
EP (1) EP1616504A3 (de)
IT (1) ITMI20040343U1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2436285A (en) * 2006-03-25 2007-09-26 Ching-Chang Wang Telescopic support for armrest
US7350865B2 (en) * 2005-11-04 2008-04-01 Steven Pearse Chair having movable thigh levers
WO2008041868A3 (en) * 2006-10-04 2008-07-31 Formway Furniture Ltd A chair
USD613084S1 (en) 2008-12-12 2010-04-06 Formway Furniture Limited Chair
USD615784S1 (en) 2008-04-09 2010-05-18 Formway Furniture Limited Chair back
USD616213S1 (en) 2008-04-09 2010-05-25 Formway Furniture Limited Chair
CN103213521A (zh) * 2013-05-01 2013-07-24 张春平 客运汽车座可装卸伸缩扶手

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848823A (en) * 1998-02-26 1998-12-15 Su; Wen-Fa Chair armrest adjuster

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848823A (en) * 1998-02-26 1998-12-15 Su; Wen-Fa Chair armrest adjuster

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7350865B2 (en) * 2005-11-04 2008-04-01 Steven Pearse Chair having movable thigh levers
GB2436285A (en) * 2006-03-25 2007-09-26 Ching-Chang Wang Telescopic support for armrest
US8668265B2 (en) 2006-10-04 2014-03-11 Formway Furniture Limited Chair
WO2008041868A3 (en) * 2006-10-04 2008-07-31 Formway Furniture Ltd A chair
US8029060B2 (en) 2006-10-04 2011-10-04 Formway Furniture Limited Chair
US8087727B2 (en) 2006-10-04 2012-01-03 Formway Furniture Limited Chair
US8096615B2 (en) 2006-10-04 2012-01-17 Formay Furniture Limited Chair
US8888183B2 (en) 2006-10-04 2014-11-18 Formway Furniture Limited Chair
US8613481B2 (en) 2006-10-04 2013-12-24 Formway Furniture Limited Chair
USD615784S1 (en) 2008-04-09 2010-05-18 Formway Furniture Limited Chair back
USD616213S1 (en) 2008-04-09 2010-05-25 Formway Furniture Limited Chair
USD613084S1 (en) 2008-12-12 2010-04-06 Formway Furniture Limited Chair
CN103213521A (zh) * 2013-05-01 2013-07-24 张春平 客运汽车座可装卸伸缩扶手

Also Published As

Publication number Publication date
ITMI20040343U1 (it) 2004-10-16
EP1616504A3 (de) 2006-03-29

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