EP4140361A1 - Ferrure pivotante d'un siège permettant de régler une partie pied et siège pourvu de partie pied réglable - Google Patents

Ferrure pivotante d'un siège permettant de régler une partie pied et siège pourvu de partie pied réglable Download PDF

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Publication number
EP4140361A1
EP4140361A1 EP22191014.4A EP22191014A EP4140361A1 EP 4140361 A1 EP4140361 A1 EP 4140361A1 EP 22191014 A EP22191014 A EP 22191014A EP 4140361 A1 EP4140361 A1 EP 4140361A1
Authority
EP
European Patent Office
Prior art keywords
fitting
foot part
lever
section
adjusting
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.)
Pending
Application number
EP22191014.4A
Other languages
German (de)
English (en)
Inventor
Andreas Thorwesten
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.)
Ferdinand Lusch GmbH and Co KG
Original Assignee
Ferdinand Lusch 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 Ferdinand Lusch GmbH and Co KG filed Critical Ferdinand Lusch GmbH and Co KG
Publication of EP4140361A1 publication Critical patent/EP4140361A1/fr
Pending 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
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/0242—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by electric motors
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/0342—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest
    • A47C1/0345—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movable backrest-seat unit or back-rest characterised by foot-rests actuated by lazy-tongs
    • 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
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5062—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type rectilinearly
    • 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
    • A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5062—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type rectilinearly
    • A47C7/5064—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type rectilinearly in vertical direction

Definitions

  • the invention relates to a swivel fitting of a piece of seating furniture for adjusting a foot part from a retracted position of non-use into an extended position for use, with a mounting section for mounting on a chassis of the piece of seating furniture, with a foot part section for mounting the foot part, with a foot part fitting for adjusting the foot part, the foot part section has a foot part connection pivoting area at the front in the use position and rear in the non-use position and a foot part connection tilting area at the rear in the use position and front in the non-use position, wherein the foot part connection pivoting area and the foot part connection tilting area are held via an adjusting lever and a control lever of the foot part fitting and are mutually adjustable and wherein the adjusting lever and the control lever during the entire adjustment from the non-use position to the use position and back in a common, at least ens over 20 cm in the longitudinal direction of the pivoting fitting extending longitudinal section in a direction perpendicular to the actuating lever and / or the control lever
  • Pivoting fittings for adjusting foot parts of seating furniture are already known in various configurations.
  • the foot part of corresponding seating furniture can be positioned in a non-use position below the seat of the seating furniture item. From this position, the foot part can then be adjusted forwards and upwards into a position of use in which the user of the foot part can rest his feet or legs on the footboard.
  • the swivel fittings for adjusting the foot part are mounted on a chassis of the seat furniture item via a mounting section.
  • the chassis is a supporting structure of the seating furniture item, relative to which the foot part can be adjusted.
  • the chassis includes side panels that can stand up on the floor.
  • the mounting section which is designed in the form of a plate if necessary, to a side panel of the chassis.
  • the mounting section which is designed in the form of a plate if necessary, to a side panel of the chassis.
  • two swivel fittings are fixed on the opposite sides of the chassis or the opposite side panels. Tilting of the foot part can thus be avoided and a more robust foot part can be provided.
  • the foot part is fixed to a foot part section, the foot part being formed by at least one board covered with a cover, in particular padded.
  • the foot part section is then adjustable via a foot part fitting. So that the foot part can be positioned at a greater distance from the ground when not in use and thus allow the seating furniture greater ground clearance, the foot parts are partially made in two parts and the two parts of the foot part are pivoted against each other when the foot part is adjusted. Both parts of the base can then be mounted on other flanges of the base section. The two parts of the foot part are usually pivoted to different extents.
  • a part of the foot part that is more to be pivoted can be mounted on a foot part connection pivot area and a part of the foot part that is only to be tilted can be mounted on a foot part connection tilt area.
  • the base connection pivoting portion and the portion of the base mounted thereon In the non-use position, the base connection pivoting portion and the portion of the base mounted thereon is located in a rearward position, while the base connection tilting portion with the portion of the base mounted thereon is located in a forward position.
  • the part of the foot part provided on the foot part connection pivoting area is usually not visible from the outside in the position of use, while the part of the foot part mounted on the foot part connection tilting area usually forms a front cover of the seating furniture under the seat, which basically prevents the user from looking under the seat and seeing the swivel fitting there.
  • the foot part connection tilting area is arranged with its part of the foot part in a rearward position in which, for example, the thighs of the user can be placed on the corresponding part of the foot part.
  • the foot part connection pivot area is arranged in a forward position in the position of use. The user can then, for example, place his feet on the part of the foot part that is connected to the foot part connection pivot area.
  • the foot part connection pivoting area and the foot part connection tilting area are held in the use position via an adjusting lever and a control lever of the foot part fitting and are supported on the chassis of the seating furniture item.
  • the actuating lever and the control lever are provided so as to be adjustable relative to one another, specifically during the adjustment of the foot part from the non-use position to the use position and back.
  • the adjusting lever and the control lever can be designed as part of a so-called scissor mechanism and arranged adjacent to one another.
  • the swivel fittings known from the prior art are often constructed in a very complex manner and are therefore expensive and sometimes prone to failure. In contrast, simpler and more cost-effectively designed swivel fittings typically do not meet high aesthetic and functional requirements.
  • the pivoting fittings usually take up a large amount of space in the non-use position and when the foot part is being adjusted, and thus usually do not allow the seating furniture to have much ground clearance.
  • the present invention is based on the object of designing and developing the swivel fitting and the seating furniture of the type mentioned at the outset and previously explained in more detail in such a way that the high demands placed on seating furniture Aesthetic and functional requirements can be better taken into account, while at the same time the swivel fitting can be manufactured quite cheaply and used reliably.
  • a swivel fitting according to the preamble of claim 1 in that the adjusting lever and the control lever during the entire adjustment from the non-use position to the use position and back in a common longitudinal section extending at least 20 cm in one direction at least in Substantially perpendicular to the adjusting lever and/or to the control lever extending adjacent to one another, that the longitudinal section in the use position is arranged in front of the foot part connection tilting area in the non-use position and that in the longitudinal section the longitudinal extent of the adjusting lever is inclined by less than 15° in relation to the longitudinal extent of the control lever .
  • the aforementioned object is also achieved with a piece of seating furniture according to the preamble of claim 15 in that the swivel fitting is designed according to one of claims 1 to 14 and that the foot part section is arranged at least in sections in the horizontal direction behind the panel in the non-use position.
  • the invention has recognized that the swivel fitting together with the foot part can be made particularly compact and efficient in the position of use. According to the invention, this is implemented to a particularly effective extent in that the adjusting lever and the control lever extend approximately in the same longitudinal direction of the swivel fitting during the entire adjustment from the non-use position to the use position and back.
  • the adjusting lever and the control lever extend in a common longitudinal section in the longitudinal direction of the swivel fitting over at least 20 cm adjacent to one another.
  • the longitudinal section extends at least essentially perpendicularly to the adjusting lever and/or to the control lever. In this way, the foot part can be be arranged in a comfortable position far in front of the seat of the chair, with only a very low overall height being required.
  • the longitudinal section is arranged in the use position in an area which, if the foot part were in the non-use position, would be positioned in front of the foot part connection tilting area of the foot part section.
  • this allows the part of the foot part fitting to be extended to be extended over a fixed screen below the seat of the chair.
  • the swivel fitting can also be designed so compactly that the swivel fitting can be accommodated behind such a screen when it is not in use, even if this screen is only very small in height. This is not only aesthetically pleasing, but also allows the seating furniture to have a large amount of ground clearance.
  • the swivel fitting, the foot part section and/or the foot part connection swivel area do not necessarily have to be provided at the height of the panel, in particular not completely. It is also conceivable and expedient if the swivel fitting, the foot part section and/or the foot part connection swivel area are provided in the horizontal direction behind the panel and in the vertical direction, if necessary partially, above the panel.
  • the adjusting lever and the control lever run at least essentially parallel to one another for the reasons mentioned.
  • some angle between the adjustment lever and the control lever may be desirable in order to easily and reliably adjust the foot section can. This can be done very easily if the control lever and the control lever are adjusted relative to one another at least essentially in the longitudinal direction by the control lever, control lever and/or swivel fitting.
  • a compromise between simplicity and reliability on the one hand and compactness on the other hand presents itself if the angle between the adjusting lever and the control lever in the longitudinal section is less than 15°.
  • the angle can be determined as required so that first the articulated stop points of the adjusting lever and the control lever are connected with a straight line. The angle between these straight lines can then be determined. However, it is also advisable if the angles of the actual course of the adjusting lever and the control lever do not assume an angle of more than 15°, in order to provide the most compact possible construction. However, short sections in which the angle is larger do not directly mean that the aforementioned advantage according to the invention is not achieved, in particular as long as the foot part fitting does not collide with the panel of the seating furniture.
  • the longitudinal section extends over at least 25 cm, preferably over at least 30 cm, in particular over at least 35 cm.
  • the foot part fitting also requires less installation space in order to be able to adjust the To allow foot fittings on a front panel below the seat. In principle, this panel can also be made lower, the longer the longitudinal section extends. However, it must also be taken into account here that the lengthening of the longitudinal section beyond a certain length no longer offers any additional advantages.
  • the compactness of the swivel fitting and the associated advantages already described can alternatively or additionally be reinforced by the fact that in the longitudinal section the longitudinal extent of the adjusting lever is less than 12°, preferably less than 10°, in particular at least 8°, compared to the Longitudinal extent of the control lever is inclined.
  • the control lever and the adjusting lever, at least in the longitudinal section require or take up less installation space, in particular less installation height.
  • the actuating lever and the control lever are arranged next to one another rather than one above the other in relation to the seating furniture. In other words, the adjusting lever and the control lever are spaced apart from one another at least essentially in the horizontal direction and only to a limited extent in the vertical direction.
  • the foot part connection tilting area, the foot part connection swivel area, the adjusting lever and the control lever are connected to one another via a five-bar linkage chain.
  • this allows a very precise adjustment of the foot part fitting in the small installation space available for the adjustment.
  • the five-link chain has a link lever that controls the control lever, bypassing the Foot part connection tilting area connects directly to the foot part connection swivel area.
  • the foot part connection pivoting area can be pivoted widely, so that the foot part section can be arranged in a very space-saving manner in the non-use position. In this way it can also be achieved that the foot part section does not assume the most space-saving configuration in the non-use position, but only after a certain adjustment of the foot part in the direction of the use position.
  • the foot part fitting can, if necessary, be attached to the mounting portion in an adjustable manner via a tilting fitting for tilting the foot part fitting relative to the mounting section.
  • the swivel fitting can also be divided, at least functionally, into a tilt fitting and a foot part fitting.
  • the tilting fitting does not primarily adjust the foot part section, but primarily enables the foot part fitting to be adjusted from the non-use position in order to enable efficient adjustment of the foot part fitting and thus of the foot part section.
  • the foot part fitting is fixed to the mounting section via the tilt fitting. Consequently, the foot part fitting can be adjusted in relation to the mounting section and thus in relation to the chassis via the tilting fitting. It is particularly expedient and simple in this connection if the mounting section is designed as part of the tilting fitting.
  • the coupling strut can expediently raise the front area of the foot part fitting in relation to the chassis.
  • the mounting section and the tilting fitting form a four-bar linkage.
  • This allows a wide and stable tilting of the footrest fitting.
  • This can be achieved in a structurally simple manner if the four-bar chain includes two rocker arms and a connecting lever.
  • the tilting fitting can then be connected via the connecting lever to a back fitting for adjusting a backrest from a more upright position to a flatter position relative to the chassis and back.
  • this is also expedient if the tilt fitting is not designed as a four-bar linkage chain and/or the back fitting is not connected to the tilt fitting via the connecting lever.
  • An adjustment of the backrest can then be achieved simply by means of the back fitting, specifically, if necessary, more or less independently of the adjustment of the foot part fitting and/or the tilting fitting.
  • the tilting fitting can be motor-driven for tilting the foot part fitting.
  • the back fitting is motor-driven for adjusting the backrest, provided that the pivoting fitting is provided with a back fitting. It is useful here to simplify the swivel fitting if the tilt fitting and the back fitting are driven together, in particular via a common motor. This is particularly expedient if the tilting fitting and the back fitting are adjusted, at least essentially one after the other, in a motor-driven manner.
  • the backrest When the foot part is adjusted from the non-use position to the use position, the backrest can be tilted via the tilt fitting and then, in particular not immediately but only after a partial adjustment of the foot part fitting, the backrest can be adjusted, in particular from the more upright position to the flatter position.
  • the tilt fitting or the back fitting has a common coupling strut with the seat fitting.
  • This also makes it possible in a structurally simple manner to be able to adjust the foot part fitting and the tilt fitting and/or the back fitting at least essentially independently of one another.
  • a seat section for mounting the seat on the swivel fitting is provided in a stationary manner with respect to the coupling strut.
  • the seat can be held by the coupling strut so that it is stable against tipping, it makes sense if the seat section is designed in two parts and if the two parts of the seat section are provided on the coupling strut at a distance from one another in the longitudinal extent of the coupling strut. Furthermore, it makes sense if the seat section is provided to be adjustable relative to the chassis via the swivel fitting and consequently via the coupling strut.
  • the four-bar chain for connecting the back section to the coupling strut and the five-bar chain for connecting the connecting lever to the coupling strut can then have a common transmission lever. In this way, a defined and reliable adjustment of the swivel fitting is achieved overall.
  • the foot part fitting can be connected to the coupling strut via a five-bar linkage chain.
  • the space-saving and correspondingly precise adjustment of the foot part can be expediently achieved.
  • This is particularly the case when the five-bar chain is connected to the coupling strut with two parallel levers that are always aligned at least substantially parallel to one another. Last but not least, this also ensures a particularly stable connection of the foot part fitting to the coupling strut.
  • each of the parallel levers is connected to the adjusting lever via two articulated connections, specifically via a separate drive lever.
  • This Drive lever can then at least partially control the drive of the foot section.
  • the two drive levers can be connected to a common spacer lever via two articulated connections. This spacer lever keeps the drive levers and thus also the parallel levers at a predetermined distance from one another, which can serve to synchronize the adjustment of the swivel fitting.
  • a drive lever at least essentially in a Z-shape.
  • An upper leg of the drive lever can then be assigned to the adjusting lever, while a lower leg of the drive lever can be assigned to the associated parallel lever.
  • the central leg of the drive lever then connects the upper leg to the lower leg.
  • the connection area of the central leg to the upper leg is then fixed in an articulated manner on the control lever. Despite an approximately parallel extension of the adjusting lever and control lever, this allows an expedient adjustment of the foot part section and in particular of the foot part connection pivoting area relative to the foot part connection tilting area.
  • the connecting portion of the central leg and the lower leg can be hinged to the spacer lever. This also enables a targeted and expedient adjustment of the foot part. It can also be supported that the foot part section assumes the most compact arrangement only after a partial adjustment of the foot part fitting. The same is also supported alternatively or additionally by the fact that a joint, in particular the joint with the spacer lever, of the five-bar chain of the foot part fitting is provided on the connection area of the central leg and the lower leg.
  • the foot part fitting can be used to adjust the Be motor-driven foot part. This is particularly the case and also allows a largely independent adjustment of the footrest, seat and backrest if the footrest fitting is adjusted via a different motor drive than the tilt fitting and/or the back fitting.
  • the foot part fitting is driven by a motorized foot part drive and the tilt fitting and/or the back fitting is driven by a motorized tilt and/or back drive. Consequently, the tilt fitting and the back fitting can be driven at least essentially via a common, separate motor drive.
  • the pivoting fitting is arranged in the position of use above the fixed panel, which extends in particular from one side panel to the opposite side panel of the seating furniture item.
  • the swivel fitting is therefore provided above the panel, in particular in the vertical direction.
  • two pivot fittings can be provided, specifically on two opposite sides of the chassis.
  • the pivot fittings are also fixed to opposite sides of the chassis. In this way, tilting of the swivel fitting can be avoided and large forces can be dissipated without having to make the swivel fittings particularly solid.
  • both swivel fittings are designed according to one of claims 1 to 14.
  • the swivel fittings work together expediently in such a way that the foot part sections jointly carry a foot part. This is done in particular in such a way that the foot part, in the non-use position, is at least partially behind in the horizontal direction the panel of the seating furniture is arranged.
  • the panel can extend from one side bolster to the opposite side bolster below the seat of the chair.
  • the two pivoting fittings are arranged above the panel in the position of use. In the position of use, the pivoting fittings are therefore provided in particular in the vertical direction above the panel. This enables a particularly compact design, in which case the panel can be used to stiffen the seating furniture. So that the adjustment of the chair can be done comfortably in the position of use for the user. it is also advisable if the longitudinal sections of the swivel fittings extend beyond the fixed panel.
  • a motorized foot part drive coupled to the foot part fitting for adjusting the foot part is provided.
  • a motorized tilt drive connected to the tilt fitting for tilting the foot part fitting is provided.
  • the back fitting for adjusting the backrest can also be coupled to a motorized back drive in order to achieve the advantage mentioned.
  • the tilting fitting for tilting the foot part fitting and the back fitting for adjusting the backrest are driven jointly by a motor via a common tilting and/or back drive, albeit one after the other if necessary.
  • FIGS 1A-C to 4A-C different details of a piece of seating furniture 1 with a swivel fitting 2 for adjusting a foot part 3 are shown.
  • the foot part 3 With the swivel fitting 2, the foot part 3 from a non-use position according to the Figures 1A-C via an intermediate position with the foot part fitting 4 carrying the foot part 3 tilted upwards at the front Figures 2A-C to a first position of use with a backrest 5 in a more upright position according to FIG Figures 3A-C and to a second position of use with the backrest 5 in a flatter position as shown in Figures 4A-C and back again.
  • the swivel fitting 2 is fixed to one side of a chassis 6 of the chair 1 .
  • another swivel fitting 2 is provided, which is not shown here.
  • the chassis 6 of the chair 1 forms a frame relative to which a backrest 5, a seat 7 and a foot part 3 can be adjusted with the swivel fittings 2.
  • the chassis 6 includes this opposite sides side bolsters 8, which are fixedly connected in the front area of the seat 7 with a continuous, extending from side bolster 8 to side bolster 8 panel 9.
  • a mounting section 10 of the pivoting fittings 2 is connected to the side panels 8 of the seating furniture item 1 in each case, so that the pivoting fittings 2 are carried by the side panels 8 of the chassis 6 .
  • the chassis 6 also has a cross member 11 which extends from one side panel 8 to the opposite side panel 8 .
  • the illustrated and insofar preferred crossbeam 11 has stop plates at opposite ends for mounting on the side panels 8 .
  • This crossbeam 12 is, however, unlike the first-mentioned crossbeam 11 , not also connected to the chassis 6 in a stationary manner, but is provided so that it can be adjusted with respect to the chassis 6 via the pivoting fitting 2 .
  • the crossbeam 11, which is stationarily connected to the chassis 6, carries a tilt and back drive 13, while the crossbeam 12, which is adjustable relative to the chassis 6, carries a foot part drive 14.
  • the tilting and back drive 13 and the foot section drive 14 are each connected to a traverse 15,16 which extend between the swivel fittings 2 and can be adjusted by a motor by extending or retracting drive rods 17,18.
  • a foot part section 43 of the swivel fitting 2 for mounting a foot part 3 is arranged behind the panel 9 .
  • the foot part 3 is arranged below the seat 7 of the chair 1 in the non-use position.
  • the seat 7 is provided with a cover, not shown.
  • the foot part 3 is designed in two parts, for which purpose the swivel fitting 2 has a foot part connection swivel area 19 and a foot part connection tilting area 20, which can be swiveled in relation to one another.
  • the foot part connection pivoting area 19 and the foot part connection tilting area 20 each carries a board 21 of the two-part foot part 3, which can be covered with a cover, not shown.
  • the mounting portion 10 forms together with two rocker arms 22 and a connecting lever 23, a four-bar chain 24 of a tilt fitting 25, with which the foot part fitting 4 according to the Figures 2A-C can be tilted upwards at the front in relation to the side wall 8 .
  • a back fitting 26 for adjusting the backrest 5 from a more upright position to a flatter position and back again is connected to the mounting section 10 via the connecting lever 23 .
  • the back fitting 26 is also shared with a foot part fitting 4 for adjusting the foot part 3 from the non-use position according to FIG Figures 1A-C in a position of use according to Figures 3A-C or Figures 4A-C a coupling strut 27.
  • the coupling strut 27 has three seat sections 28 spaced apart from one another in the longitudinal direction of the swivel fitting 2 for mounting the seat 7 stationary relative to the coupling strut 27.
  • the connecting lever 23 forms a four-bar linkage chain 30 of the back fitting 26 with three pivoting levers 29a, 29b, 29c.
  • the upper pivoting lever 29a which extends at least substantially in the longitudinal direction of the pivoting fitting 2, is connected to two transmission levers 32a, 32b to form a four-bar linkage chain 33 of the back fitting 26 , which includes the coupling strut 27.
  • the pivoting lever 29b assigned to the rear end of the pivoting fitting 2 is connected to the coupling strut 27 via a coupling lever 31 .
  • the transmission lever 32b associated with the front end of the swivel fitting 2 is arranged in a hidden manner between the mounting section 10 and the coupling strut 27 of the swivel fitting 2 .
  • the four-bar chain 33 and the four-bar chain 30 are also connected to the transmission lever 32a associated with the rear end of the swivel fitting 2 with a four-bar chain 34 carrying the backrest 5 .
  • this four-bar chain 34 comprises the back section 35 for connecting the backrest 5, the coupling strut 27, the transmission lever 32a and a support lever 52.
  • the foot part fitting 4 is articulated with two parallel levers 36 on the coupling strut 27 .
  • the two parallel levers 36 extend while the foot part 3 is being adjusted the non-use position in the use position at least substantially parallel to each other.
  • the two parallel levers 36 are each connected via two articulated connections 37 via a drive lever 38 to an adjusting lever 39, the two drive levers 38 being connected to one another by a spacer lever 40 via two articulated connections.
  • the parallel levers 36 are connected to the coupling strut 27 via a link lever 41 and a drive lever 38 by way of a five-bar chain.
  • the drive lever 38 of the foot part fitting 4 which is connected to the strap lever 41, is Z-shaped and therefore has a lower leg, a central leg and an upper leg.
  • the lower leg is articulated to the parallel lever 36 at a free end and articulated to the tab lever 41 and the spacer lever 40 at the other end.
  • the upper leg is articulated with a free end to the actuating lever 39 and articulated to a control lever 42 at the other end.
  • the control lever 42 and the adjusting lever 39 are adjusted relative to one another in order to adjust a foot part section 43 of the foot part fitting 4 carrying the foot part 3 .
  • the adjusting lever 39 is articulated to the foot part connection tilting area 20 while the control lever 42 is articulated to the foot part connection tilting area 20 on the one hand and articulated to a link lever 44 of the foot part section 43 on the other hand.
  • the other end of the link lever 44 is connected to the foot link pivot portion 19 to pivot the foot link pivot portion 19 from a position behind the foot link pivot portion 20 to a position in front of the foot link pivot portion 20 opposite the foot link pivot portion 20 by moving the control lever 39 and the control lever 42 relative to each other.
  • the foot part connection pivoting area 19 is directly articulated to the foot part connection tilting area 20 .
  • the actuating lever 39 and the control lever 42 extend at least substantially parallel and adjacent to one another.
  • the adjusting lever 39 and the control lever 42 run at least essentially in a horizontal longitudinal direction of the swivel fitting 2, in which the adjusting lever 39 and the control lever 42 are moved more or less together when the foot part 3 is adjusted from the non-use position to a use position.
  • the adjusting lever 39 rests on a support element 45 connected in a stationary manner to the coupling strut 27 in order to divert the weight forces to the coupling strut 27 .
  • the foot part 3 is arranged together with the foot part section 43 behind the panel 9 of the seating furniture item 1, which extends continuously from one side panel 8 of the chassis 6 of the seating furniture item 1 to the opposite side panel 8.
  • the front portion of the foot portion portion 43 is formed by the foot portion connection tilting portion 20 located in front of the foot portion connection pivot portion 19 .
  • the foot part connection tilting area 20 is arranged in such a way that the part 46 of the foot part 3 supported by the foot part connection tilting area 20 is aligned approximately vertically with the upper side of the foot part 3 pointing forward.
  • the foot part connection pivoting area 19 is oriented such that the part 47 of the foot part 3 supported by the foot part connection pivoting area 19 is oriented approximately horizontally with the upper side of the foot part 3 pointing downwards.
  • the tilt and back drive 13 is actuated, the drive rod 17 of the tilt and back drive 13 being partially extended, as in FIGS Figures 2A-C is shown.
  • the traverse 15 connected to the drive rod 17 and the opposite swivel fittings 2 moves forward and thereby adjusts the tilt fitting 25 connected to the traverse 15 in the direction of the restoring force of a spring means 48 of the tilt fitting 25.
  • the connecting lever 23 is adjusted upwards by pivoting the rocker arms 22 forward, since the mounting section 10 remains fixed in place on the side panel 8 of the seat 1 .
  • the front section of the foot part fitting 4 comprising the foot part section 43, and the coupling strut 27 is raised together with the seat 7 and the back fitting 26 in the front area.
  • the foot section 43 is adjusted in relation to the panel 9 of the chair 1 upwards. As a result, the foot part fitting 4 and the back fitting 26 remain essentially unchanged in relation to the coupling strut 27 .
  • the drive rod 18 of the foot part drive 14 moves the foot part fitting 4 together with the foot part section 43 forward, the coupling strut 27, the back fitting 26 and the tilting fitting 25 at least essentially maintaining their positions.
  • the traverse 16 connected to the foot section drive 14 is connected to the rear parallel lever 36 via a transmission plate 49 in a rotationally fixed manner relative to the rear parallel lever 36 .
  • the parallel levers 36 are thus pivoted forward, at least essentially parallel to one another, relative to the coupling strut 27 , driven by the traverse 16 and the transmission plate 49 .
  • the tab lever 41, the drive lever 38 and the spacer lever 40 also move forward. Driven by these gears, the adjusting lever 39 and the control lever 42 move forward approximately in a straight line.
  • the adjusting lever 39 and the control lever 42 remain adjacent in a longitudinal section 50 in an at least substantially horizontal transverse direction and are arranged approximately parallel to one another in the longitudinal direction of the swivel fitting 2 .
  • the longitudinal section 50 extends presently, but not necessarily over a distance of between 35 cm and 40 cm, namely in a longitudinal direction of the swivel fitting 2.
  • the longitudinal section is 50 in positioned in a region of the seating furniture item 1 which, in relation to the non-use position of the foot part 3 , is arranged in front of the foot part 3 , in particular in front of the foot part connection tilting area 20 .
  • the adjusting lever 39 and the control lever 42 are also inclined by less than 15°, in the present case by approximately 5° to 6° relative to one another. In the present case, this applies to the actual design of the actuating lever 39 and the control lever 42. However, it would also be conceivable for only two straight lines to be inclined relative to one another by less than 15°, for example by approximately 5° to 6°. One of these straight lines then extends through the terminal articulated connections of the control lever 42, while the other straight line extends through the terminal articulated connections of the actuating lever 39. Then the actual shape of the adjusting lever 39 and the control lever 42 is less important.
  • the adjusting lever 39 and the control lever 42 are adjusted relative to one another to a certain extent. This slight adjustment is translated into a significant adjustment of the footer link pivot area 19 and the footer link tilt area 20 in the footer section 43 .
  • the foot part connection pivot area 19 is initially raised slightly backwards and upwards, in particular while the foot part connection pivot area 19 is shifted over the panel 9 of the seat 1 over to the front.
  • the user can adjust the backrest 5 from the more upright position to a flatter position.
  • the drive rod 17 of the tilt and back drive 13 is extended further forward. This not only leads to a tilting of the backrest 5 backwards, but also to a displacement of the coupling strut 27 together with the foot part fitting 4 and the backrest 5 forwards in relation to the mounting section 10 of the pivoting fitting 2.
  • the adjustment takes place against the restoring force of a spring means 51 of the back fitting 26.
  • the chair 1 gets in this way in the Figures 4A-C shown position with the foot part 3 in a position of use and the backrest 5 in a flatter orientation.
  • the seating furniture 1 and the swivel fitting 2 can be made from the Figures 4A-C shown position in the reverse manner back to that in the Figures 1A-C shown position can be reset.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP22191014.4A 2021-08-31 2022-08-18 Ferrure pivotante d'un siège permettant de régler une partie pied et siège pourvu de partie pied réglable Pending EP4140361A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021122430.6A DE102021122430A1 (de) 2021-08-31 2021-08-31 Schwenkbeschlag eines sitzmöbels zum verstellen eines fussteils und sitzmöbel mit verstellbarem fussteil

Publications (1)

Publication Number Publication Date
EP4140361A1 true EP4140361A1 (fr) 2023-03-01

Family

ID=83271253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22191014.4A Pending EP4140361A1 (fr) 2021-08-31 2022-08-18 Ferrure pivotante d'un siège permettant de régler une partie pied et siège pourvu de partie pied réglable

Country Status (3)

Country Link
US (1) US20230076546A1 (fr)
EP (1) EP4140361A1 (fr)
DE (1) DE102021122430A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160029800A1 (en) * 2013-05-10 2016-02-04 L&P Property Management Company Motorized linkage mechanism for hi-leg seating unit
DE202018104073U1 (de) 2018-07-16 2018-07-24 Ciar S.P.A. Sitz- und/oder Liegemöbel
US20190061569A1 (en) * 2015-05-14 2019-02-28 VIP Cinema LLC Motor driven sloped floor recline mechanism for a theater seat
US20190082850A1 (en) * 2017-09-20 2019-03-21 Ciar S.P.A. Seating and/or lounging furniture
US20190216221A1 (en) * 2018-01-12 2019-07-18 L&P Property Management Company Recliner seating mechanism with seat extension
US10376060B2 (en) * 2015-09-15 2019-08-13 Ciar S.P.A. Wall hugger recliner
CN111820648A (zh) * 2020-07-21 2020-10-27 锐迈机械科技（吴江）有限公司 一种高抬腿座椅机构及座椅
EP3965616B1 (fr) 2019-06-29 2023-05-31 Michael Schuster Meuble d'assise comprenant une fonction d'écartement constant du mur et un élément de pied basculant

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160029800A1 (en) * 2013-05-10 2016-02-04 L&P Property Management Company Motorized linkage mechanism for hi-leg seating unit
US20190061569A1 (en) * 2015-05-14 2019-02-28 VIP Cinema LLC Motor driven sloped floor recline mechanism for a theater seat
US10376060B2 (en) * 2015-09-15 2019-08-13 Ciar S.P.A. Wall hugger recliner
US20190082850A1 (en) * 2017-09-20 2019-03-21 Ciar S.P.A. Seating and/or lounging furniture
US20190216221A1 (en) * 2018-01-12 2019-07-18 L&P Property Management Company Recliner seating mechanism with seat extension
DE202018104073U1 (de) 2018-07-16 2018-07-24 Ciar S.P.A. Sitz- und/oder Liegemöbel
EP3965616B1 (fr) 2019-06-29 2023-05-31 Michael Schuster Meuble d'assise comprenant une fonction d'écartement constant du mur et un élément de pied basculant
CN111820648A (zh) * 2020-07-21 2020-10-27 锐迈机械科技（吴江）有限公司 一种高抬腿座椅机构及座椅

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DE102021122430A1 (de) 2023-03-02
US20230076546A1 (en) 2023-03-09

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