CA2774880C - Telescopic arm for a pc table - Google Patents

Telescopic arm for a pc table Download PDF

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Publication number
CA2774880C
CA2774880C CA2774880A CA2774880A CA2774880C CA 2774880 C CA2774880 C CA 2774880C CA 2774880 A CA2774880 A CA 2774880A CA 2774880 A CA2774880 A CA 2774880A CA 2774880 C CA2774880 C CA 2774880C
Authority
CA
Canada
Prior art keywords
sleeve
telescopic
outer sleeve
telescopic sleeve
locking
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 - Fee Related
Application number
CA2774880A
Other languages
French (fr)
Other versions
CA2774880A1 (en
Inventor
Webjoern Jarnes
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.)
Ekornes ASA
Original Assignee
Ekornes ASA
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 Ekornes ASA filed Critical Ekornes ASA
Publication of CA2774880A1 publication Critical patent/CA2774880A1/en
Application granted granted Critical
Publication of CA2774880C publication Critical patent/CA2774880C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00Details of tables or desks
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B21/00Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/03Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
    • A47B21/0314Platforms for supporting office equipment
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B17/00Writing-tables
    • A47B17/03Writing-tables with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
    • A47B17/033Writing-tables with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves with parts added to the original furniture to enlarge its surface
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B23/00Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else
    • A47B23/02Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else releasably mounted on the bedstead or another item of furniture
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B83/00Combinations comprising two or more pieces of furniture of different kinds
    • A47B83/001Office desks or work-stations combined with other pieces of furniture, e.g. work space management systems
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/62Accessories for chairs
    • A47C7/68Arm-rest tables ; or back-rest tables
    • A47C7/70Arm-rest tables ; or back-rest tables of foldable type
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/62Accessories for chairs
    • A47C7/68Arm-rest tables ; or back-rest tables
    • A47C7/705Arm-rest tables ; or back-rest tables of detachable type
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B21/00Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/03Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
    • A47B2021/0307Platforms for supporting office equipment and wrists
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00General construction of tables or desks
    • A47B2200/0066Workstations
    • A47B2200/0075Computer kiosks or stands
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00General construction of tables or desks
    • A47B2200/0066Workstations
    • A47B2200/0076Vertical technical column supporting office equipment

Landscapes

  • Mutual Connection Of Rods And Tubes (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Clamps And Clips (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Machine Tool Units (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

Rotating telescopic column that includes an outer sleeve (7) with a number of interior cams, a telescopic sleeve (11) located inside the outer sleeve (7) and that has a corresponding number of outer slots (15), as the cams in the outer sleeve (7) is designed to intervene in the slots (15) in the telescopic sleeve (11) and thereby prevents the telescopic sleeve from turning relative to the outer sleeve, a locking clamping mechanism attached to the outer sleeve (7), and grip the telescopic sleeve (11), and is designed to lock the telescopic sleeve to the outer sleeve when the telescopic sleeve is in a selected position relative to the outer sleeve, an axle (10) located inside the telescopic sleeve (11) and is rotatable in relation to this.

Description

Telescopic arm for a PC table Technical field The present invention regards a rotatable telescopic column. The column has a general application, but is particularly suitable for use in furniture, and more specifically in the PC
table.

Background The applicant markets a PC table which includes a table top that can carry a computer, more specifically a laptop computer, often called a laptop. The PC table includes an arm that carries the table top itself. The arm is attached to a column that has adjustable height and is rotatable, and which in turn is attached to a piece of furniture. The arm must be swung in and out of the workspace of the user, so that it easily can be placed in the correct working position and can be swung away when not in use. The height adjust-able column includes a clamp coupling that locks the column in the desired height and with an appropriate friction so that the arm can be rotated. The prior art column has a weakness in that the friction does not remain constant during use. Wear occurs in the clamp coupling, and it is easily loosened when the joint pivots back and forth.

It is therefore a need for an improved telescopic bar that is more stable in use, where the friction can be easily adjusted, respectively, that can be locked, and where the settings are retained over time.

Summary The present invention is intended to produce such a column. This is achieved with a tele-scopic column according to the present invention. The scope of the invention is shown in the following patent claims. Specifically, it is arranged a rotatable telescopic column that includes an outer sleeve, a telescopic sleeve which is located inside the outer sleeve, a locking clip mechanism attached to the outer sleeve and that grabs around the telescopic sleeve and is designed to lock the telescopic sleeve to the outer sleeve when the tele-scopic sleeve is in a selected position relative to the outer sleeve and a shaft located in-side the telescopic sleeve and is rotatable in relation to this. It is thereby achieved that the functions for length adjustment and turning of the column are separated and do not affect each other. The column is therefore more stable in use. The clamping mechanism will not loosen during use, while the turning feature becomes very strong because of the continuous shaft.
2 Brief description of the drawings An embodiment of the present invention will now be described in detail by reference to the enclosed figures, where:

Figure 1 is a drawing of a PC table, Figure 2 is a perspective sketch of a telescopic column according to the invention, Figure 3 shows a cross sectional view through the telescopic column.

Detailed description Figure 1 shows a PC table including a table top 1. The table top is attached to a swivel joint 2, which in turn is attached to an upper arm 3. The upper arm is attached to a swivel arm or a telescopic column 4, which in turn is attached to a lower arm 5 and a clamp attachment 6. The telescopic column 4 may be varied in length, and can rotate around the vertical axis with appropriate friction.

The telescopic column 4 includes an outer sleeve 7 which is attached to the lower arm 5, and a swivel and clamping mechanism which is located inside the outer sleeve 7. The inner mechanism is illustrated in Figure 2, as an exploded view. The mechanism includes a shaft 10 which is attached to the upper arm 3, for example with threads. The shaft 10 runs in a telescopic sleeve 11. The shaft is rotatable relative to the sleeve and the friction between the shaft and the sleeve is determined by the spring washers 12, which located between the screw head 13 on the shaft 10 and the end of the sleeve.

The telescopic sleeve 11 is in the form of a dual walled profile with an outer and an inner tube connected in the same hub and a number of longitudinal bridges.
Furthermore the telescopic sleeve 11 is equipped with a number of longitudinal slots 15 that are designed to intervene in the corresponding cams inside the outer sleeve 7. The sleeves cannot thereby turn relative to each other. This means that all the turning movement occurs between the shaft 10 and the telescopic sleeve 11, while the longitudinal telescopic movement occurs between the outer sleeve 7 and the telescopic sleeve 11.

The telescoping column also includes a locking sleeve 16 which is arranged to be fas-tened in the outer sleeve 7. The locking sleeve can, for this purpose, include a knob de-signed to intervene in a recess, slot or opening in the outer sleeve 7. The locking sleeve 16 has a number of cams 17 on the inside designed to intervene in the tracks 15 on the telescopic sleeve, and also include a threaded section 18 on the outside, and locking knobs 19. Furthermore, there is a locking ring 20 that is oriented to be turned on the
3 locking sleeve 16 and the clamp locking knobs 19 against the telescopic sleeve 11 when the telescopic column is locked in a particular length. The other details shown in the fig-ure may include end caps 21, 22 which act as bearings for the rotary movement, as well as the bushings 23, 24, 25.

Figure 3 shows the mechanism in the mounted condition, ready to be put into the outer casing and locked to it.

In a simpler version of the PC table, it is conceivable that the telescopic column is ar-ranged directly between the clamp attachment 6 and attached to the table top 1.

The telescopic column according to the invention has been described applied to a PC ta-ble. However, it may find other applications, such as in a rotating mechanism for the seat on a chair, or other general applications outside the furniture industry.

Claims (6)

Claims
1. Rotating telescopic column, comprising:
an outer sleeve (7), a telescopic sleeve (11) located inside the outer sleeve (7), a lockable clamp mechanism that is attached to the outer sleeve (7) and grips the telescopic sleeve (11) and is designed to lock the telescopic sleeve to the outer sleeve when the telescopic sleeve is in a selected position relative to the outer sleeve, a shaft (10) located inside the telescopic sleeve (11) and which is rotatable in relation to this, characterized in that the outer sleeve has a number of internal cams, said telescopic sleeve has a corresponding number of outer slots (15), as the cams in the outer sleeve (7) are designed to intervene in the slots (15) in the telescopic sleeve (11) and thereby prevent the telescopic sleeve from turning relative to the outer sleeve.
2. Rotating telescopic column according to claim 1, where the lockable clamping mechanism includes a locking sleeve (16) with a number of locking knobs (19), as the locking sleeve (16) is attached to the outer sleeve (7), and a locking ring (20) arranged to clamp the locking tabs (19) against the telescopic sleeve (11).
3. Rotating telescopic column according to claim 1, as it further includes a number of spring washers (12) arranged between a screw head (13) on shaft (10) and one end of the telescopic sleeve (11), and which serves to determine the friction between the shaft and telescopic sleeve.
4. Rotating telescopic column according to claim 1, as it further includes first (21) and second (22) end caps mounted on the ends of the telescopic sleeve (11) and acts as bearings for the axle (10).
5. Rotating telescopic column according to claim 1, where the telescopic sleeve consists of an outer and an inner tube connected by a number of longitudinal bridges.
6. PC table comprising a table top (1) and a fastening mechanism such as a clamp attachment (6), having a rotatable telescopic column according to one of claims 1 - 5 is arranged between the table top and the fastening mechanism.
CA2774880A 2009-10-19 2010-10-19 Telescopic arm for a pc table Expired - Fee Related CA2774880C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20093169 2009-10-19
NO20093169A NO331261B1 (en) 2009-10-19 2009-10-19 Telescopic arm on PC table for StressLess
PCT/NO2010/000366 WO2011049458A1 (en) 2009-10-19 2010-10-19 Telescopic arm for a pc table

Publications (2)

Publication Number Publication Date
CA2774880A1 CA2774880A1 (en) 2011-04-28
CA2774880C true CA2774880C (en) 2016-10-11

Family

ID=43708827

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2774880A Expired - Fee Related CA2774880C (en) 2009-10-19 2010-10-19 Telescopic arm for a pc table

Country Status (19)

Country Link
US (1) US20120228453A1 (en)
EP (1) EP2490569B1 (en)
JP (1) JP5730886B2 (en)
KR (1) KR101782181B1 (en)
CN (1) CN102595967B (en)
AU (1) AU2010308635B2 (en)
BR (1) BR112012009313A2 (en)
CA (1) CA2774880C (en)
CY (1) CY1115041T1 (en)
DK (1) DK2490569T3 (en)
ES (1) ES2459947T3 (en)
HK (1) HK1174514A1 (en)
MY (1) MY159685A (en)
NO (1) NO331261B1 (en)
NZ (1) NZ598902A (en)
PL (1) PL2490569T3 (en)
PT (1) PT2490569E (en)
RU (1) RU2530868C2 (en)
WO (1) WO2011049458A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8870280B2 (en) 2011-11-29 2014-10-28 Human Touch, Llc Table accessory for a chair
US9167906B2 (en) 2011-11-29 2015-10-27 Human Touch, Llc Computer component mounting device for a chair
CN103040265B (en) * 2013-01-08 2015-02-25 宁波立信旅游用品有限公司 Chair for director
CN108720399B (en) * 2018-07-04 2024-03-08 敏华家具制造(惠州)有限公司 Sofa armrest support

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Also Published As

Publication number Publication date
NO20093169A1 (en) 2011-04-20
ES2459947T3 (en) 2014-05-13
WO2011049458A1 (en) 2011-04-28
EP2490569A1 (en) 2012-08-29
PT2490569E (en) 2014-06-25
CN102595967A (en) 2012-07-18
NO331261B1 (en) 2011-11-14
KR101782181B1 (en) 2017-09-26
PL2490569T3 (en) 2014-08-29
CA2774880A1 (en) 2011-04-28
AU2010308635B2 (en) 2014-07-24
BR112012009313A2 (en) 2016-06-07
DK2490569T3 (en) 2014-06-30
EP2490569B1 (en) 2014-03-19
NZ598902A (en) 2013-06-28
CN102595967B (en) 2014-05-07
US20120228453A1 (en) 2012-09-13
KR20120099048A (en) 2012-09-06
AU2010308635A1 (en) 2012-04-12
RU2012120311A (en) 2013-11-27
RU2530868C2 (en) 2014-10-20
JP2013508071A (en) 2013-03-07
HK1174514A1 (en) 2013-06-14
MY159685A (en) 2017-01-13
JP5730886B2 (en) 2015-06-10
CY1115041T1 (en) 2016-12-14

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Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20150325

MKLA Lapsed

Effective date: 20171019