EP3449772B1 - Bestuhlungssystem - Google Patents

Bestuhlungssystem Download PDF

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Publication number
EP3449772B1
EP3449772B1 EP18192774.0A EP18192774A EP3449772B1 EP 3449772 B1 EP3449772 B1 EP 3449772B1 EP 18192774 A EP18192774 A EP 18192774A EP 3449772 B1 EP3449772 B1 EP 3449772B1
Authority
EP
European Patent Office
Prior art keywords
seat shell
seating system
arm
seat
swivel
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.)
Active
Application number
EP18192774.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3449772A1 (de
Inventor
Roland Lang
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.)
Mobil Werke AG
Original Assignee
Mobil Werke AG
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 Mobil Werke AG filed Critical Mobil Werke AG
Priority to PL18192774T priority Critical patent/PL3449772T3/pl
Publication of EP3449772A1 publication Critical patent/EP3449772A1/de
Application granted granted Critical
Publication of EP3449772B1 publication Critical patent/EP3449772B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools; Workshop stools
    • A47C9/022—Office stools; Workshop stools movably mounted on a working-table or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools; Workshop stools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B83/00—Combinations comprising two or more pieces of furniture of different kinds
    • A47B83/02—Tables combined with seats
    • 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
    • A47C1/12—Theatre, auditorium or similar chairs

Definitions

  • the invention relates to a seating system according to the preamble of claim 1.
  • Seating systems of this type are used in particular in auditoriums, auditoriums, meeting rooms, counters, etc. and are usually designed as stationary row seating.
  • Such a seating system is for example in the Swiss patent CH651738A5 shown and has a stand with a table top and with a support arm connected to the stand, which carries a seat at its free end, the support arm and seat being pivotable from an end position into a use position in the horizontal plane.
  • the US6899385B2 discloses a comparable seating system for lecture halls and classrooms and the like, which additionally shows a mechanism for the resilient mounting and adjustment of the seat.
  • the US2024045A shows another seating system which can be considered useful for understanding the invention.
  • the seating system according to the preamble of claim 1 therefore has a lifting element which moves the seat shell between a locked position and a seated position, the seat shell being locked in a locked position in the unloaded state to prevent the seat pan from pivoting relative to the support arm.
  • the seat shell can be unlocked in the loaded state in order to allow the seat shell to pivot.
  • load is understood to mean, in particular, the sitting down of a person on the seat shell, with the result that the person loads the seat shell and thus the lifting element with its weight.
  • the lifting element is designed as a gas pressure spring.
  • gas pressure springs are that, in addition to their spring force, they are equipped with an integrated damping mechanism, which, together with the constant release of force, leads to smooth, jerk-free swiveling movements without abrupt movement stops.
  • the seat shell can be provided with a reset device which automatically swivels the seat shell back from a sitting position into the blocking position.
  • the reset device can be formed by the lifting element, which is designed in particular as a gas pressure spring, and by a first guide element, a control surface being arranged on the first guide element, which converts the lifting movement of the lifting element into a rotary movement in conjunction with a second guide element.
  • the lifting element designed as a gas pressure spring is arranged at the free end of the support arm in a receiving pot, the cylinder housing of the gas pressure spring being firmly connected to the receiving pot and the seat shell being connected to the piston rod of the gas pressure spring.
  • the piston rod is mounted in the cylinder housing in such a way that it can be rotated about its own longitudinal axis.
  • gas pressure springs is preferred because it increases the convenience of use compared to conventional springs and avoids noise.
  • the first guide element can have stop lugs. If the first guide element is arranged at the upper end of the receptacle, this can preferably be designed as a stop ring on which the stop lugs are molded.
  • This counter element can be designed as a profile rod, which is attached eccentrically to the axis of rotation on the seat shell.
  • the control surface of the first guide element can be formed on the underside of a spring tongue projecting outwards on the outer circumference of the stop ring, as seen in the radial direction, the spring tongue or at least the control surface being inclined with respect to the plane of the stop ring.
  • the control surface cooperates with a second guide element, which can be attached to the free end of the profile bar.
  • the second guide element can preferably be designed as a ball bearing.
  • the ball bearing is arranged so that the axis of rotation of the ball bearing is aligned radially to the axis of rotation of the seat shell. This enables the ball bearing to roll on the control surface when the seat shell is rotated.
  • the stop ring can have, for example, a section which is delimited by two stop lugs and cooperates with the second guide element, the second guide element and the stops only being operatively engaged when the gas pressure spring is in the unloaded state and the piston is at its maximum out of the cylinder housing is extended.
  • the free end of the spring tongue projecting outwards can advantageously be shaped like a hook, in order to form one of the stop lugs.
  • the support arm is formed in two parts and consists of one connected to the upright Holding arm and a swivel arm connected to the seat shell, the holding arm and swivel arm being connected to one another via a swivel joint.
  • This swivel joint can be formed from a cylinder liner attached to the front of the swivel arm and a receiving jaw attached to the free end of the holding arm, which are connected to one another by a bearing pin.
  • Another gas pressure spring is advantageously installed in or on the holding arm, the piston rod of which is connected to the receiving cylinder of the swivel arm. As a result, the further gas pressure spring can push the swivel arm and thus the seat shell into the end position.
  • the previously described mode of operation of a gas pressure spring increases comfort in that the pivoting movements are carried out evenly and without abrupt stops.
  • an upright carries two seat units, which are preferably each formed from a holding arm, a swivel arm and a seat shell.
  • an upright of the seating system according to the invention can be designed as a hollow profile and in the interior of the hollow profile electrical supply lines can be led to the underside of the table top.
  • the backrest of the rotatable seat shell preferably does not strike the table top or an adjacent seat unit when the support arm is pivoted from the locked position into the sitting position and vice versa.
  • the resetting of the seat shell into the locking position when the user stands up is quicker than the resetting of the support arm into the locking position. This prevents damage to the backrest and the edge of the table.
  • FIGS. 1 and 2 show a perspective view of a swivel arm 14 used in a seating system according to the invention with a lifting element 21 and a seat support 12 with a different stroke.
  • the lifting element 21 is installed in a receiving pot 22 and according to the embodiment Figure 1 designed as a gas pressure spring.
  • the cylinder housing of the gas pressure spring is not visible.
  • a stop ring 24 surrounding it is mounted on the upper side of the receptacle 22 .
  • This has two stop lugs 27, 27 ', a cap-like plastic stop 28 being attached to the stop lug 27.
  • the stop ring 24 has a spring tongue 26 which is integrally formed on the outer circumference of the stop ring 24 and the free end of which is slightly spaced from the outer circumference.
  • the base of the spring tongue 26 connects directly to the stop lug 27 '.
  • the spring tongue 26 is also opposite the Plane of the stop ring 24 inclined, in other words the spring tongue 26 is bent downward to a small extent.
  • the underside of the spring tongue 26 forms a control surface 35, which cooperates with a counter-element 23 explained below.
  • This counter element 23 is designed as a channel-like profile part 36, which is mounted eccentrically on the seat support 12. Here, the channel is oriented inwards to the axis of rotation A of the seat support 12 and parallel to this.
  • a profile rod 37 is formed with a bore 38 through which a flat-head screw 33 is inserted, which serves as an axis for a ball bearing 31.
  • the ball bearing 31 and the flat head screw 33 and a washer 34 are secured against falling out by means of a head nut 32.
  • the ball bearing 31 is installed on the side of the stop ring 24 facing the side of the stop ring 24 together with a washer 34, and the flat-head screw 33 extends in the radial direction with respect to the axis of rotation A. Details of the essentially from the ball bearing 31 and the profile rod 37 formed second guide element 55 are the Figure 8 refer to.
  • the seat support 12 is mounted on the end of a piston rod 29 of the lifting element 21 designed as a gas pressure spring.
  • the longitudinal axis of the gas pressure spring simultaneously forms the axis of rotation A about which the seat support 12 can be rotated.
  • the seat support is in the unloaded state, which means that the compression spring is loaded with no or only a very small weight.
  • the piston rod 29 is thus extended to the maximum.
  • This position of the piston rod 29 has the result that the ball bearing 31 is located between the stop lugs 27 and 27 '.
  • these stop lugs block any rotational movement of the seat carrier and thus the in Figure 1 Seat shell 11, not shown.
  • the seat support 12 is thus in a locked position.
  • the seat shell 11 remains in the locked position.
  • the counter element 23 installed on the seat support 12 is also moved downward, with the result that the ball bearing 31 is no longer located between the two stop lugs 27 and 27 '(see here Fig. 2 ).
  • the seat shell 11 is now rotatable.
  • the stop lug 27 forms a further limitation of the play in the rotational movement.
  • the seat pan 11 can only be moved in the direction of arrow B from this released blocking position.
  • the lifting element 31 lifts the seat shell and thus the counter element 23 again.
  • This lifting movement is carried out until the running surface of the ball bearing 31 meets the control surface 35. Because this control surface 35 is inclined with respect to the plane of the stop ring 24 and because the lifting element continues to push the entire arrangement of seat surface and counter element 23 upwards, the ball bearing rolls along the control surface and the lifting movement is converted into a rotary movement. This process lasts until the profile rod 37 in turn strikes the stop nose 27 '. Finally, a vertical lifting movement is then carried out again, which brings the ball bearing 31 into the locked position between the stop lugs 27 and 27 '.
  • the stop lug 27 is covered with a cap-like plastic stop 28, which reduces the noise when the profile rod 37 strikes the stop 27 and has a damping effect.
  • FIG 4 shows a perspective view of a seating system according to the invention in a two-seat embodiment with swivel arms 14, 14 'in the end position and with seat elements in their respective locking positions.
  • a seat element in the form of a seat shell 11 is shown, the seat support not being shown in the figure and a seat support 12.
  • the seat support and seat element can be connected to one another in a known manner.
  • the seat support and seat element are screwed.
  • the swivel arms 14, 14 ' are articulated on holding arms 15, 15'.
  • a support profile is attached, which carries a table top, not shown.
  • the upright 16 is designed as a hollow profile and has semicircular recesses. In the interior of the hollow profile, electrical lines for power supply or for information transmission can be routed, which can be led through the recesses 49, 49 'to the underside of the table top or to sockets built into or attached to the table top.
  • FIG 5 is a perspective view of a seating system according to the invention Figure 4 shown with seat elements according to Figure 4 in a sitting position and with swivel arms 14, 14 'in free positions. It is easy to imagine how the seat shell 11 is aligned with the table edge, not shown. The holding arms 14, 14 'are in relation to their position in Figure 4 pivoted to the rear, the seat elements are shown in the loaded position in the sitting position.
  • FIG 6 is a perspective view of a seating system according to the invention Figure 4 shown with seat elements according to Figure 4 in the locked position and with swivel arms 14, 14 'in free positions. It can be seen here how the seat shell 11 is pivoted by approximately 90 ° relative to the table top 54 indicated by dashed lines. It is conceivable that a seat shell 11 made accessible in this way can be comfortably reached and a person can sit down without any effort.
  • FIG 7 a lifting element 21 designed as a gas pressure spring is shown in perspective. Note that this is an exploded view. Basically, the stop ring 24 with the plastic stop 28 and the stop lugs 27 and 27 'is placed centrally on the cylinder housing of the gas pressure spring.
  • the ring When installed, the ring lies - as in, for example Figure 1 recognizable - slightly below the upper edge of the receptacle 22.
  • the receptacle 22 has an L-shaped guide slots 58 and 59, into which pins 56 and 57 which are directed radially inwards and are formed on the stop ring 24 can be inserted.
  • the stop ring 24 can thus be rotated to a limited extent.
  • the stop ring is firmly fixed with screws.
  • the rotatable arrangement of the stop ring 24 makes it possible to determine the extent to which the seat shell 11 can be rotated, because the positions of the stops 26, 27 and 27 'are of course also determined by the positioning and fixing of the stop ring 24.
  • FIG 11 shows a perspective view of a seating system according to the invention Figures 4 to 6 with elements partially shown in exploded view.
  • the support arms are each realized from the holding arms 14 and 14 'or 15 and 15'.
  • a joint which consists of a bearing pin 53, a holding cylinder 51 and holding jaws 52.
  • Brass sleeves are inserted on the top and bottom of the receiving cylinder to enable maintenance-free plain bearings.
  • cover 17 To cover the mechanics installed in the holding arms 15 and 15 ', these are covered with a cover 17.
  • Figure 12 shows a perspective view of a seating system according to the invention Figure 11 with seat shells 11, 11 ', swivel arms 14, 14', holding arms 15, 15 ', it should be noted that the holding arm 15' is covered by the cover 17.
  • the seat shells 11, 11 ' are in their locked position and the swivel arms 14, 14' are in the end position.
  • FIG 13 is a section through a seating system according to the invention Figure 12 shown.
  • the holding arm 15 is a hollow profile, in the interior of which a mechanism is installed.
  • the mechanism has the task of pivoting the swivel arm 14 by means of the further gas pressure spring 41 installed in the receptacle 22.
  • the gas pressure spring 41 ensures that the seat shell 11 ′ mounted on the swivel arm 14 is moved into the end position in the unused state.
  • the backrest of the seat pan 11 is arranged in the end position with a minimal distance from the table top 54. Lying on the edge of the table top 54 should be avoided in order to avoid impact noises when pivoting back.
  • the gas pressure spring 41 like the gas pressure spring used in the lifting element 21, is constructed in a known manner and has a cylinder housing 43 from which a displaceably mounted piston rod 44 emerges. At the end of the piston rod 44, a fork head 45 is attached, which is articulated on a receiving tab 46 of the swivel arm 14. In the unloaded state, the piston rod 44 is extended to the maximum and thus presses the swivel arm 14 into the end position.
  • the gas pressure spring 41 is fixed in the hollow profile by means of a flange 42 which is connected to the cylinder housing 43. In order to apply the forces required for pivoting, the exemplary embodiment according to Figure 13 two identical gas pressure springs installed.

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  • Chairs Characterized By Structure (AREA)
EP18192774.0A 2017-09-05 2018-09-05 Bestuhlungssystem Active EP3449772B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18192774T PL3449772T3 (pl) 2017-09-05 2018-09-05 System siedziska

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01101/17A CH714117A1 (de) 2017-09-05 2017-09-05 Bestuhlungssystem.

Publications (2)

Publication Number Publication Date
EP3449772A1 EP3449772A1 (de) 2019-03-06
EP3449772B1 true EP3449772B1 (de) 2020-04-15

Family

ID=60244815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18192774.0A Active EP3449772B1 (de) 2017-09-05 2018-09-05 Bestuhlungssystem

Country Status (3)

Country Link
EP (1) EP3449772B1 (pl)
CH (1) CH714117A1 (pl)
PL (1) PL3449772T3 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019113235A1 (de) * 2019-05-20 2020-11-26 Henglin Home Furnishings Co., Ltd. Fußkreuz für eine Sitzvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2024045A (en) * 1929-04-11 1935-12-10 Paul H Johnson Swinging and swiveling chair
CA2438629C (en) * 2003-08-29 2011-02-15 Vaclav Pernicka Auditorium seating

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3449772A1 (de) 2019-03-06
PL3449772T3 (pl) 2020-11-02
CH714117A1 (de) 2019-03-15

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