EP4062801A1 - Articulation pivotante et meuble pourvu de zone de pivotement libre - Google Patents

Articulation pivotante et meuble pourvu de zone de pivotement libre Download PDF

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Publication number
EP4062801A1
EP4062801A1 EP22157438.7A EP22157438A EP4062801A1 EP 4062801 A1 EP4062801 A1 EP 4062801A1 EP 22157438 A EP22157438 A EP 22157438A EP 4062801 A1 EP4062801 A1 EP 4062801A1
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EP
European Patent Office
Prior art keywords
lever
pivoting
cam
control means
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.)
Pending
Application number
EP22157438.7A
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German (de)
English (en)
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 EP4062801A1 publication Critical patent/EP4062801A1/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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A47C7/541—Supports for the arms of adjustable type
    • 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
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head
    • 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
    • A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation

Definitions

  • the invention relates to a swivel joint for adjusting a functional part, in particular a head part, a foot part or an armrest, of a piece of furniture, in particular seating furniture and/or upholstered furniture, with a mounting lever for mounting the swivel joint on the piece of furniture and a swivel lever for carrying and adjusting the functional part, wherein the swivel joint can be adjusted from an adjustment position into a return position and back, the swivel lever and the assembly lever being connected to one another so that they can swivel from an initial position to an end position and back about a joint swivel axis, wherein in the adjusted position the swivel lever can be swiveled in a plurality of directions when swiveled in an adjustment direction between the starting position and the end position provided locking positions is locked by a blocking form-fitting engagement of a locking mechanism against pivoting in the opposite direction to the reset direction, wherein the Gesper re comprises at least one blocking cam and
  • the invention relates to a piece of furniture, in particular seating furniture and/or upholstered furniture, with a functional part, in particular head part, foot part or armrest, a base part, in particular chassis, backrest or seat, and a pivot joint for connecting the functional part to the base part and for pivoting the functional part relative to the base part, the pivot joint is connected to the base part with a mounting lever and to the functional part with a swivel lever.
  • Pivot joints for adjusting a functional part of a piece of furniture are known in different configurations.
  • the swivel joints are usually used to adjust a head part, a foot part or an armrest of a piece of seating furniture, which is typically an upholstered piece of furniture.
  • the swivel joints have a mounting lever with which the swivel joints are fixed to a base part of the respective piece of furniture.
  • a chassis, a backrest or a seat, for example, can be used as the base part.
  • a pivoting lever is provided, which carries the respective functional part and pivots the respective functional part around the assembly lever or the base part.
  • the pivoting lever and the mounting lever are designed to be pivotable relative to one another about a joint pivot axis in an adjustment direction from an initial position to an end position.
  • a locking mechanism engages in one another in a form-fitting and blocking manner and thus locks the pivoting lever against pivoting in the return direction opposite to the setting direction relative to the mounting lever.
  • the locking mechanism is formed by at least one locking cam and a control means which can be rotated relative to the locking cam and comprises a ring gear. To lock the locking mechanism, the locking cam can positively engage in the toothing of this ring gear.
  • the swivel joint can be moved from the setting position described above into a reset position.
  • the pivoting lever must typically first be adjusted in the adjustment direction to an end position, as a result of which the blocking cam is disengaged from the ring gear in a release position in order to adjust the pivoting joint into the reset position.
  • the blocking cam is in the release position and the swivel joint is therefore in the return position, the swivel lever can be moved back into a starting position in the return direction.
  • the locking cam When the pivoting lever is pivoted from the initial position into the setting direction, the locking cam is again engaged with the ring gear and thus the pivot joint is brought back into the setting position, so that the pivot joint can again be individually adjusted in the setting direction in order to enable the user to sit in a comfortable position .
  • the toothed ring and the locking cam then slide off one another, while the locking cam is moved back and forth slightly along a guide in order to jump one tooth gap further in relation to the toothed ring.
  • the locking cam is spring-loaded and positioned against the ring gear.
  • the known swivel joints allow the functional part to be set in a comfortable position relative to the base part. On the other hand, the adjustment of the functional part via the known swivel joints is not yet possible with a satisfactory level of comfort.
  • the present invention is therefore based on the object of designing and developing the swivel joint and the piece of furniture of the type mentioned at the outset and described in more detail above in such a way that the comfort for the user when handling the swivel joint is increased.
  • the functional area of the swivel joint is therefore divided into two different areas, namely at least one freely swiveling area and at least one latching area. Only in the at least one latching area does a form-fitting engagement of the locking cam and toothed ring occur, which blocks the pivoting lever from being moved back in the return direction.
  • further pivoting of the pivoting lever in the adjustment direction is possible, with the locking cam sliding step by step on the teeth of the ring gear and engaging between the teeth of the ring gear in tooth gaps of the ring gear in order to positively prevent accidental adjustment of the pivoting lever in the return direction in the respective position of the pivoting lever to block.
  • an adjustment of the pivoting lever in the setting direction as well as in the reset direction leads to the blocking cam resting against a freely pivoting surface of the control means and sliding off it.
  • the pivoting lever In the corresponding freely pivoting area, the pivoting lever cannot be locked in a form-fitting blocking manner.
  • the functional part cannot be locked in the free pivoting area can be accepted if, for example, the at least one free pivoting area is provided in such a way that the functional part cannot be positioned comfortably there anyway.
  • the functional part In many pieces of furniture, the functional part is placed in the initial position in a position where it is not visible or disturbs the aesthetic sense of the user as little as possible. From this position, the functional part must often first be adjusted over a not inconsiderable angular range, in which the functional part can provide a comfortable sitting or lying position for the user.
  • the functional part can be arranged, for example, in a starting position of the pivoted lever in a non-use position, while the functional part is in the use positions when the pivoted lever is arranged in the latching area.
  • the freely pivoting area can also be provided at another point between an initial position and an end position of the pivot joint. It is also alternatively or additionally possible for more than one free pivoting area between an initial position and an end position of the pivot joint and/or more than one latching area is provided. If the pivoting lever of the pivoting joint is adjusted in the setting position from the initial position in the setting direction in the direction of the end position, the blocking cam can initially slide off in a first latching area on the ring gear, with the blocking cam and the ring gear engaging in a form-fitting manner and blocking in the return direction.
  • a freely pivoting area can then follow, in which the blocking cam slides off on a freely pivoting surface of the control means without engaging in a form-fitting manner in the ring gear.
  • the pivoting lever After the pivoting lever has been adjusted beyond the free pivoting range, it reaches the second latching range, in which the locking cam slides off the toothed ring again and thereby engages in the toothed ring in a form-fitting blocking manner.
  • a different sequence of the at least one free pivoting area and the at least one locking area can also be provided in the adjustment direction of the pivot joint in the adjustment position of the pivot joint. For example, a free pivoting area can initially follow the starting position, which is then followed by a latching area. A free pivoting area can then follow in the adjustment direction, which is followed by a further latching area.
  • a separate free pivoting area and three separate locking areas are alternately provided between the initial position and the end position, either beginning with a free pivoting area or beginning with a locking area.
  • a different number of latching areas and freely pivoting areas can also follow one another between the starting position and the end position. The respective number can in principle be freely selected, even if in most cases a small number will be sufficient or preferred in order to be able to offer the user of the furniture comfortable positions in a simple manner.
  • a separate free-pivoting area is preferably assigned to each free-pivoting area.
  • the freely swiveling surface of the control means is provided on a freely swiveling cam which comes into contact with the locking cam in the setting position.
  • toothing could be dispensed with in the area of the freely pivoting surface, but this is not necessary if the freely pivoting surface of the control means is provided on a freely pivoting cam that comes into contact with the blocking cam in the setting position.
  • the at least one free pivoting cam is in the setting position in the at least one free pivoting area for adjusting the at least one locking cam is formed out of engagement with the ring gear of the control means.
  • the at least one freely pivoting cam can be used to ensure in a simple and reliable manner that the at least one locking cam cannot engage with the ring gear of the control means. The locking cam can thus be pushed away from the free-pivoting cam.
  • the at least one freely pivoting cam projects radially outwards relative to the toothing of the control means.
  • the tax agent and the Blocking cams can also be adjusted to one another in other ways such that the freely pivoting cam disengages the blocking cam from the ring gear of the control means.
  • the at least one freely swiveling surface and the ring gear are each provided on separate, exchangeable individual parts of the control means. Different freely pivoting ranges can then be provided simply by exchanging the individual part of the control means that has at least one freely pivoting cam for another individual component that has at least one freely pivoting cam.
  • the freely pivoting cams can, if required, differ in terms of their arrangement and/or in terms of their width or their angular range in order to adjust the at least one freely pivoting range of the pivot joint accordingly.
  • one and the same individual part of the control means having at least one freely pivoting cam can be arranged in a different orientation to the individual part of the control means having the ring gear.
  • This increases the possibility of using identical parts in the manufacture of swivel joints.
  • the swivel joint can be produced in a simple manner if the two individual parts are plate-shaped and/or disc-shaped. Then they can be combined quickly and easily to form a common control device.
  • the interchangeability of the individual parts of the control means that have at least one freely pivoting cam and/or their arrangement in a different orientation to the individual parts of the control means that have ring gears is simplified and improved by arranging the two individual parts of the control means one behind the other parallel to the pivot axis of the pivot joint. This allows a particularly simple interaction with the adjacent locking cam.
  • the corresponding interchangeability or arrangement of the individual parts is alternatively or additionally further simplified if the two individual parts are joined to one another and/or engaged with one another in a direction parallel to the pivot axis of the joint.
  • the adjustment of the pivoting lever can also be made more comfortable in that the locking cam is disengaged from the ring gear in the reset position and/or that the locking cam is positioned at a distance from the at least one free pivoting surface in the reset position.
  • the return position is preferably defined in such a way that the pivoting lever can be adjusted relative to the assembly lever in the return position. The swivel joint can then simply be moved back from the end position to the starting position, specifically, if necessary, in order to reset the functional part. It is also particularly advantageous if the pivoted lever can be freely adjusted from the end position in the reset direction back to the starting position.
  • the swivel joint can be adjusted into the return position by adjusting the swivel lever relative to the assembly lever.
  • the pivot joint can be adjustable into the setting position by adjusting the pivot lever relative to the assembly lever.
  • the maneuverability of the swivel joint can also be improved by the control means being provided in such a way that in the setting position the swivel lever is adjusted in the setting direction first over the at least one free-pivoting area and then over the at least one latching area.
  • the functional part can first be adjusted via the freely pivoting area from a non-use position to a latching area that is clearly spaced from the non-use position.
  • the functional part can be arranged in the non-use position, for example, so that the functional part is not visible or fits aesthetically into the furniture, even if this position is far away from positions of the functional part in which the user can potentially take a comfortable position with the help of the functional part .
  • the functional part can then be adjusted beyond the freely pivoting area into this area, and consequently the latching area.
  • control means can also be provided in such a way that, in the setting position, the pivoted lever is adjusted in the setting direction from the initial position at least essentially directly into the at least one free pivoting area and/or from the at least one latching area at least essentially directly into the end position . Then the pivoted lever can be easily and reliably adjusted from the latching area to the end position or from the starting position to the freely pivoting area.
  • a triggering area for adjustment is attached to the freely pivoting area in the return direction of the swivel joint from the reset position to the set position. Irrespective of this, it can be useful if a triggering area is located at the latching area in the adjustment direction for adjusting the swivel joint from the set position to the reset position.
  • the triggering area if provided, should preferably make up a small angular area of the swivel joint.
  • the swivel joints can absorb higher forces and usually be built smaller if the locking cams have at least two, preferably at least four, in particular at least eight teeth.
  • the teeth of the locking cam also preferably correspond to the ring gear of the control means.
  • At least two, in particular at least three, more particularly at least four, locking cams can also interact with at least one ring gear.
  • at least two, preferably at least three, in particular at least four, sprockets can also be provided, which interact with the at least one locking cam.
  • the at least one locking cam can also have exactly one tooth, exactly two teeth, exactly four teeth or exactly eight teeth.
  • the swivel joint can have exactly one locking cam, exactly two locking cams, exactly three locking cams or exactly four locking cams.
  • the swivel joint can have exactly one toothed rim, exactly two toothed rims, exactly three toothed rims or exactly four toothed rims.
  • FIG. 1A is a pivot joint 21 in a perspective view and in FIG Figure 1B shown in an exploded view.
  • a mounting lever 22 is provided for connecting the swivel joint 21 to the piece of furniture, in particular a piece of seating furniture, more preferably to the backrest of a piece of seating furniture.
  • the mounting lever 22 is non-rotatably connected to a control means 23, the control means 23 being arranged concentrically to a joint pivot axis 24 and rotatable relative to a pivot lever 25 for mounting a functional part, in particular a head part.
  • the connection is provided in such a way that the pivoting lever 25 can be pivoted in relation to the assembly lever 22 and thus in relation to the control means 23 in order to adjust the functional part.
  • the pivot lever 25 is held so as to be rotatable relative to the control means 23 and about the joint pivot axis 24 of the pivot joint 21 .
  • the control means 23 comprises an attached control disk 26.
  • control disk 26 must be pulled off the individual part of the control means 23 that accommodates the control disk and then rotated through the desired angle.
  • the control disk 26 can then be pushed back in the changed orientation onto the individual part of the control means 23 that accommodates the control disk.
  • the control disk 26 partially protrudes in the radial direction in relation to a toothed ring 31 provided on a radial edge of the control means 23 and forms a freely pivoting surface 32 there.
  • the toothed rim 31 is provided circumferentially to the control means 23 , with the freely pivoting surface 32 of the control disk 26 protruding radially relative to the toothed rim 31 only in certain areas.
  • the freely pivoting surface 32 is provided on a freely pivoting cam 45 of the control disk 26 .
  • the ring gear 31 of the control means 23 and the freely pivoting surface 32 of the control disk 26 are accommodated in a receptacle 33 formed by the pivoting lever 25, which are closed on both sides by cover elements 34.
  • a locking cam 35 which has teeth 36 which can engage with the teeth 37 of the ring gear 31 .
  • the locking cam 35 and the ring gear 31 of the control means 23 form a locking mechanism 38 to lock the adjustment of the swivel joint 21 in at least one position and in the return direction R.
  • the locking cam 35 is clamped in a form-fitting manner between the ring gear 31 and the receptacle 33, in particular the tapering part of the receptacle 33. If the blocking cam 35 is in contact with the freely pivoting surface 32 of the control means 23 , the pivoting lever 25 can be moved freely without the blocking cam 35 being clamped in the receptacle 33 in a blocking manner.
  • a spring element 39 is arranged in the receptacle 33, which can exert a restoring force on the locking cam 35 in the direction of the control means 23, in particular in the direction of the toothed ring 31 and the free pivoting surface 32, for example to prevent the locking cam 35 from engaging in the Sprocket 31 and on the other hand, to allow the blocking cam 35 to slide off the ring gear 31 and from the free-pivoting surface 32 of the free-pivoting cam 45 of the control disk 26 for adjusting the pivot joint 21 .
  • the blocking cam 35 can come into contact with the release stop 40 or with the locking stop 41 when the pivoting lever 25 is in a corresponding position.
  • the locking cam 35 projects parallel to the joint pivot axis 24 and in the direction of the assembly lever 22 somewhat opposite the ring gear 31 . This protruding area of the locking cam 35 can then come into contact with the control disk 26, in particular with the release stop 40 and the locking stop 41 of the control disk 26.
  • the swivel joint 21 is shown adjoining an angle range of the swivel lever 25 that can be designated as the triggering range.
  • the triggering range is limited by an initial position in which the locking cam 35 is arranged in the reset position and can be adjusted into the setting position by pivoting the pivoted lever 25 .
  • the locking cam 35 and thus the swivel joint 21 has just reached the setting position, starting from the starting position.
  • the pivoted lever 25 cannot be adjusted further in the return direction R than the pivoted lever 25 and thus the pivot joint 21 reach the initial position.
  • the initial position thus forms one end of the adjustment range for the pivoted lever 25.
  • the locking cam 35 is in contact with the freely pivoting surface 32 of the freely pivoting cam 45 of the control disk 26 of the control means 23 due to the restoring force of the spring means 39.
  • the pivoting lever 25 can be adjusted further from this position in the adjustment direction E, with the locking cam 35 slides on the free pivoting surface 32 without offering any significant resistance to the adjustment of the pivoting lever 25 .
  • the same also applies if the pivoting lever 25 is partially moved back in the reset direction R.
  • the angular range in which the locking cam 35 can slide in the setting direction E and the return direction R along the free pivoting surface 32 is called the free pivoting range.
  • the free-pivoting area is followed by a latching area. If the pivoted lever 25 is moved far enough from the starting position in the adjustment direction E, the blocking cam 35 moves past the freely pivoting surface 32 of the freely pivoting cam and that of the blocking cams 35 into the latching area, with the blocking cam 35 then engaging with the ring gear 31 of the control means 23 arrives, like this in the 3 is shown.
  • the locking cam 35 is further in contact with the control means 23. Since the pivoting lever 25 has been pivoted further in the adjustment direction E, the locking cam 35 is no longer as in FIG 2 in contact with the freely swiveling surface 32 of the control means 23, but with the ring gear 31 of the control means 23. The toothing 36 of the locking cam 35 comes into engagement with the toothing 37 of the ring gear 31. The swiveling lever 25 is now further in the adjustment direction E compared to the assembly lever 22 pivoted, the locking cam 35 remains in principle in engagement with the ring gear 31, wherein the adjustment of the pivoting lever 25, however, the teeth 36 of the locking cam 35 slides on the teeth 37 of the ring gear 31.
  • the restoring force of the spring means 39 repeatedly presses the toothing 36 of the locking cam 35 into the toothing 37 of the ring gear 31. This leads to a form fit which blocks pivoting lever 25 from pivoting back in the resetting direction R, which is opposite to the adjustment direction E, since the Locking cam 35 then wedged between the ring gear 31 and the receptacle 33. If the user has pivoted the pivoted lever 25 in the adjustment direction E far enough that he can assume a comfortable sitting position, the blocking of the pivoted joint 21 by the locking mechanism 38 prevents the pivoted joint 21 from being inadvertently reset if this is caused, for example, by the user's head resting on one of the head part carried by the pivoting lever 25 is loaded in the return direction R. However, further adjustment of the pivoting lever 25 in the direction of the adjustment direction E remains possible.
  • the pivoting lever 25 reaches the end position in the adjustment direction E, as shown in FIG figure 5 is shown.
  • the angular range of the pivoted lever 25 between the end of the latching range and reaching the end position is referred to as the triggering range.
  • the pivoting lever 25 can in this way in the 6 return to the starting position shown, in which the control disc 26 with the locking stop 41 is in contact with the locking cam 35 . If the pivoted lever 25 is then pivoted again in the setting direction E, the blocking cam 35 is pushed out of the release position and shifted into the latching position in which the blocking cam 35 is no longer held at a distance from the control means 23, but in contact with the freely pivoting surface 32 of the control means 23 arrived. Here, the locking cam 35 comes with a restoring end stop 44 in contact with the receptacle 33 of the pivot lever 25, as shown in FIG 2 is shown. The swivel joint 21 or the functional part of the corresponding piece of furniture can now be adjusted again.
  • the locking cam 35 is movably held on a guide 47 and is set against the ring gear 31 of the control means 23 via the spring means 39 . When the locking cam 35 slides off the ring gear 31 , the locking cam 35 is therefore movably guided on the guide 47 .
  • the release stop 40 and the locking stop 41 are arranged offset from one another at a specific setting angle EW.
  • the actual adjustment angle EW also includes release angles AW at its edges, since the control disk 26 still has to move the blocking cam 35 from the locked position to the release position and back.
  • the release angle AW describes the release path of the pivoted lever 25 relative to the mounting lever 22, which is required to move the locking cam 35 from the latched position to the release position and back or to move the pivot joint 21 from the setting position to the reset position and back. What remains of the setting angle EW or the release angle AW corresponds to the functional angle FW, which can be used to adjust the functional part.
  • the adjustment angle EW and the function angle FW can be specified in a defined manner by the angle of the control disk 26 between the release stop 40 and the locking stop 41 .
  • the starting position of the pivoted lever 25 can be predetermined by the position of the locking stop 41 and/or by the angular position in which the control disk 26 is connected to the control means 23 . If the initial position is to be changed, only the angular position of the control disk 26 relative to the control means 23 has to be changed, or a different control disk 26 must be used. If the setting angle EW is to be changed, only the control disk 26 has to be exchanged for a control disk 26 with a different setting angle EW. However, the swivel joint 21 can otherwise remain unchanged.
  • the ring gear 31 of the control means 23 is shown separately.
  • the toothing 37 is provided circumferentially, in which the corresponding toothing 36 of the locking cam 35 can engage in sections.
  • the section in which the toothing 36 of the locking cam 35 can actually engage in the toothing 37 of the ring gear 31 is determined by the design of the control disk 26 and the orientation with which the control disk 26 with its grooves 27 and tongues 29 engages with the grooves 28 and tongues 30 of the ring gear 31 is attached, defined.
  • a piece of furniture 50 is shown in the form of seating furniture and in the form of upholstered furniture, in which the head part is designed as a functional part 51 and is connected to the base part 52 in the form of the backrest via at least one swivel joint.
  • the pivoting lever of the pivoting joint In the non-use position, the pivoting lever of the pivoting joint is in the starting position or close to the starting position and the functional part 51 is adjusted all the way back. In this position, however, the functional part 51 is not used, or only to a limited extent, for putting on the user's head.
  • the functional part 51 can be adjusted from the position of non-use into a position of use beyond the free pivoting area FSB without the pivot joint being blocked in a form-fitting manner.
  • the pivoting lever reaches latching area RB, in which functional part 51 is held in a position of use that is comfortable for the user in a form-fit blocking manner, preventing functional part 51 from being accidentally reset in reset direction R.
  • the functional part 51 In the foremost position, the functional part 51 is in an end position or close to the end position from which the functional part 51 must first be moved back into the non-use position before a new use position can be set.
  • the release areas adjoin the outer ends of the locking area RB and the freely pivoting area FSB in the area of the release angle AW. All these areas together then form the setting area EB of the piece of furniture 50, while the setting area EB without the triggering areas forms the functional area.
  • the components connected to the mounting lever 22 in a rotationally fixed manner in the present and to this extent preferred pivot joint 21 could just as well also be connected in a rotationally fixed manner to the pivoted lever 25 .
  • the present non-rotatably connected to the pivoted lever 25 components are non-rotatably connected to the mounting lever 22 as compensation.
  • components are provided, which can be seen by a person skilled in the art, which can optionally be connected in a rotationally fixed manner to the mounting lever 22 or the pivoting lever 25 .
  • components can also be connected in a rotationally fixed manner neither to the assembly lever 22 nor to the pivoting lever 25 .
  • the joint pivot axis 24 can belong to the last two components, for example.
  • FIG. 10A-C another swivel joint 60 is shown in an adjustment position.
  • the pivot joint 60 comprises a mounting lever 61 for mounting on a piece of seating furniture, not shown, and a pivoting lever 62 for holding a functional part of the piece of seating furniture, in particular in the form of a head part.
  • the pivot lever 62 is also provided pivotable about a joint pivot axis 63 relative to the mounting lever 61 .
  • the swivel joint 60 shown is in an adjusted position in which a locking mechanism 64 in one form-fitting intervention.
  • the locking mechanism 64 comprises a ring gear 65 on a control means 66 of the pivoting lever 62 and a locking cam 67 fixed relative to the assembly lever 61.
  • the locking cam 67 is also movably held on a guide 68 and is set against the ring gear 65 of the control means 66 via a spring means 69.
  • the control means 66 is formed from two separate individual parts 70,71. Alternatively, the control means could also be designed in one piece.
  • the ring gear 65 is provided uninterruptedly and circumferentially on a first disc-shaped individual part 70 of the control means 66 .
  • another plate-shaped individual part 71 is also provided, which carries a freely pivoting cam 72 and, for the sake of simplicity, can interact with a release cam 73 of the blocking cam 67.
  • the freely pivoting cam 72 interacts with another adjusting cam of the blocking cam 67 for adjusting the blocking cam 67 .
  • the two individual parts 70, 71 of the control means 66 are non-rotatably connected in the circumferential direction about the joint pivot axis 63 in the pivot joint 60 shown and in this respect preferred. Nevertheless, the separate individual parts 70,71 can be exchanged for individual parts 70,71 with a different ring gear 65 and/or a different freely pivoting cam 72 in order to provide a pivot joint with a modified pivoting behavior.
  • the two individual parts 70, 71 of the control means 66 are fixed in a form-fitting manner in the circumferential direction about the joint pivot axis 63 and, if necessary, are also plugged into one another parallel to the joint pivot axis 63.
  • the swivel joint 60 is in the setting position and at the same time in a free swivel range FSB.
  • freely pivoting range when pivoting lever 62 is pivoted in adjustment direction E and reset direction R, freely pivoting cam 72 slides off with a freely pivoting surface 76 on release cam 73 or, alternatively, on another setting cam of blocking cam 67, without toothing 74, 75 of control means 66 and the Locking cam 67 interlock.
  • the pivoting lever 62 cannot therefore be locked in relation to the assembly lever 61 .
  • the pivoting lever 62 can be adjusted relative to the mounting arm 61 with little noise and with little effort.
  • the pivoted lever 62 If, on the other hand, the pivoted lever 62 is moved into the reset position R, the toothing 74 of the locking cam 67 and the ring gear 65 of the control means 66 form a blocking engagement with one another in order to lock the position of the pivoted arm 62 in the reset direction R relative to the mounting arm 61.
  • the pivoted lever 62 can therefore only be adjusted in the adjustment direction E in the latching area RB shown, but only so far that the pivoted lever 62 reaches an end position.
  • adjustment stops 77, 78 of the control means 66 or of the pivoting lever 62 and of the assembly lever 61 come into contact with one another. Shortly before the end position is reached, i.e.
  • a reset cam 79 also comes into contact with a control cam 80, as a result of which the control cam 80 is pressed against the release cam 73 of the blocking cam 67 in such a way that the control cam 80 moves the release cam 73 together with the Locking cam 67 adjusted against the restoring force of the spring means 69 in a release position.
  • the control cam 80 In the release position, the control cam 80 is in engagement with a release cam 73 of the locking cam 67, so that the control cam 80 release cam 73 and thus the locking cam 67 in the in the 12 shown position relative to the control means 66 and the toothed 65 holds.
  • the teeth 74, 75 of the control means 66 and the locking cam 67 are not in engagement with one another in the release position, which is why the pivoted lever 62 can now be pivoted in the return direction R back into the opposite starting position.
  • the resetting stops 81, 82 of the control cam 80 and the assembly lever 61 come into contact with one another, in that the control cam 80 is in a further triggering range by an adjusting cam 83 of the control means 66 or the pivoting lever 62 in the resetting direction R from the release cam 73 of the blocking cam 67 is pushed away.
  • the control cam 80 and the release cam 73 of the blocking cam 67 thus disengage and the blocking cam 67 is pressed against the control means 66 as a result of the restoring force of the spring means 69 .
  • the teeth of the locking cam 67 and the ring gear 65 of the control means 66 thus come into contact with one another.
  • the pivoting lever 62 of the pivot joint 60 can then initially be adjusted again in the adjustment direction E beyond its free pivoting range FSB into the latching range.
  • the resetting cam 79 and the setting cam 83 are provided in a stationary manner on the individual part 70 of the control means 66 that carries the ring gear 65, with the other, the free-pivoting cam 72 supporting, plate-shaped item 71 of the control means 66 is attached to the reset cam 79 and the adjustment cam 83.
  • the two individual parts 70, 71 of the control means 66 are thus positioned relative to one another in a rotationally fixed manner in relation to the joint pivot axis 63.

Landscapes

  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP22157438.7A 2021-03-25 2022-02-18 Articulation pivotante et meuble pourvu de zone de pivotement libre Pending EP4062801A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021107557.2A DE102021107557A1 (de) 2021-03-25 2021-03-25 Schwenkgelenk und Möbel mit Freischwenkbereich

Publications (1)

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EP4062801A1 true EP4062801A1 (fr) 2022-09-28

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Application Number Title Priority Date Filing Date
EP22157438.7A Pending EP4062801A1 (fr) 2021-03-25 2022-02-18 Articulation pivotante et meuble pourvu de zone de pivotement libre

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EP (1) EP4062801A1 (fr)
DE (1) DE102021107557A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018111394A1 (de) * 2018-05-14 2019-11-14 Ferdinand Lusch Gmbh & Co Kg Schwenkgelenk zum Verstellen eines Funktionsteils eines Möbels
US20210007487A1 (en) * 2017-05-11 2021-01-14 Hettich Franke Gmbh & Co. Kg Pivot fitting and piece of furniture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010055529B4 (de) 2010-12-22 2012-11-29 Ferdinand Lusch Gmbh & Co. Kg Rastgelenk zum Verstellen eines Sitz- und/oder Liegemöbels
DE102017110247A1 (de) 2017-05-11 2018-11-15 Hettich Franke Gmbh & Co. Kg Schwenkbeschlag und Möbel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210007487A1 (en) * 2017-05-11 2021-01-14 Hettich Franke Gmbh & Co. Kg Pivot fitting and piece of furniture
DE102018111394A1 (de) * 2018-05-14 2019-11-14 Ferdinand Lusch Gmbh & Co Kg Schwenkgelenk zum Verstellen eines Funktionsteils eines Möbels

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Publication number Publication date
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