EP3621489A1 - Ferrure pivotante et meuble - Google Patents

Ferrure pivotante et meuble

Info

Publication number
EP3621489A1
EP3621489A1 EP18722546.1A EP18722546A EP3621489A1 EP 3621489 A1 EP3621489 A1 EP 3621489A1 EP 18722546 A EP18722546 A EP 18722546A EP 3621489 A1 EP3621489 A1 EP 3621489A1
Authority
EP
European Patent Office
Prior art keywords
toothing
lever
pawl
fitting according
pivot
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.)
Granted
Application number
EP18722546.1A
Other languages
German (de)
English (en)
Other versions
EP3621489B1 (fr
Inventor
Gerd Stauss
Steffen Grathwol
Oliver Nill
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.)
Hettich Franke GmbH and Co KG
Original Assignee
Hettich Franke 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 Hettich Franke GmbH and Co KG filed Critical Hettich Franke GmbH and Co KG
Priority to PL18722546T priority Critical patent/PL3621489T3/pl
Publication of EP3621489A1 publication Critical patent/EP3621489A1/fr
Application granted granted Critical
Publication of EP3621489B1 publication Critical patent/EP3621489B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • A47C1/0308—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable by rotation
    • 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
    • A47C1/026—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 means of peg-and-notch or pawl-and-ratchet mechanism
    • 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
    • A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
    • A47C1/06—Hairdressers' or similar chairs, e.g. beauty salon chairs adjustable
    • 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
    • A47C7/54—Supports for the arms
    • A47C7/541—Supports for the arms of adjustable type

Definitions

  • the present invention relates to a pivot fitting according to the preamble of claim 1 and a piece of furniture with such a swivel fitting.
  • a generic pivot fitting is known for example from EP 2 544 567 B1.
  • two levers are fixed relative to one another via a latching mechanism.
  • One of these levers can be attached to a base body or seat part of a piece of furniture such as a upholstered furniture, while the second lever is used for example for fixing a pivotally mounted headrest, which is fixed by means of the pivot fitting from a starting position in predetermined locking stages.
  • the catch fitting can be further pivoted in a simple manner.
  • Object of the present invention is to provide a pivot fitting, in which the adjustment of a first to a second detent position is again easier to carry out. This object is achieved with a pivot fitting with the features of claim 1.
  • the object is further achieved by a piece of furniture with such a swivel fitting according to claim 21.
  • the pivot fitting according to the invention in particular for movable furniture parts on furniture, has a first lever and a second lever, which are mounted about a common axis out of a basic position by a predetermined angle pivotally to each other. With a clamping mechanism of the pivot fitting, the two levers in different angular positions within the predetermined angle relative to each other can be fixed.
  • the clamping mechanism in this case has a rotationally fixed on the second lever toothing, at least one pivotally mounted on the first lever and loaded in the direction of the toothing pawl, which is in a detent position in engagement with the toothing.
  • the clamping mechanism furthermore has a control disk rotatably mounted about the common axis, with which the at least one pawl can be brought out of engagement with the toothing in an adjustment direction after passing the predetermined angle from the basic position, so that when the pawl is out of engagement with the toothing By driving over the predetermined angle in a return direction, the two levers can be pivoted back into the basic position.
  • control disk is frictionally engaged with the toothing and rotatably mounted relative to the first lever by a switching angle.
  • the clamping mechanism has a first spring element, with which the control disk is pressed against the toothing frictionally.
  • the first spring element is preferably designed as a plate spring or spring plate.
  • Such a trained spring element is inexpensive to produce and easy to mount in the clamping mechanism and ensures a sufficient frictional engagement of the control disk on the teeth.
  • the control disk is designed as a plate spring or spring plate. This makes it possible to save the first spring element.
  • the frictional entrainment of the control disk with the toothing can be done both directly by direct concern of the control disk on the teeth as well as indirectly by a frictional entrainment of the control disk by a non-rotatably connected to the teeth further component.
  • the clamping mechanism has a second spring element with which the at least one pawl can be pressed against the toothing.
  • the toothing is formed according to a first advantageous embodiment variant as at least one at least partially circular toothed disc with an outer toothing formed on a part-circular outer edge, which is coupled via a power shaft to the second lever.
  • the pawl has a pivot arm with teeth facing the axis of rotation of the levers.
  • the toothing is preferably designed in the form of two part-circular toothed disks, wherein between the toothed disks, the control disk is arranged so that the control disk is sufficiently frictionally clamped by the pressure of the first spring element on one of the part-circular toothed pulleys between the two part-circular toothed pulleys, so that the Depending on the application of force, the control disk either moves with the toothed disks or moves relative to the toothed disks.
  • the pawl is formed in two parts from two pawl elements, wherein each one of the pawl elements is arranged in a plane with one of the toothed disks, so that in each case one of the pawl elements is in operative engagement with one of the toothed disks in the detent position.
  • this preferably has a recess in which a control bolt attached to the first lever is received.
  • the recess is dimensioned such that the control bolt is displaceable by the switching angle relative to the control disk.
  • a switching contour is provided at a distance from the recess on an outer circumference of the control disk, with which the pawl can be pivoted out of a latching position with the toothing out into a non-latching position. In a latching position of the pawl, the switching contour lies in a tooth adjacent to the teeth forming an internal toothing of the recess of the pawl.
  • the recesses enclosing edges of the pawl serve according to a further preferred embodiment as support surfaces for supporting the pawl on the Umschaltkontur the control disk.
  • the Umschaltkontur is shaped according to a preferred embodiment such that the pawl when adjusting the lever to each other in the adjustment direction from a predetermined adjustment angle on a first support surface of the changeover contour is held out of engagement with the toothing.
  • the switching contour is shaped such that the pawl is guided touching each other in adjusting the teeth in adjustment of the levers.
  • the desired latching position is slightly overrun, so that when the pivot fitting is loaded and the relative pivoting associated with it the lever in the return direction slips down from the switching contour of the control disk and locks into the toothing.
  • the toothing is designed as arranged on the second lever circular internal teeth and the at least one pawl has a pivot arm with remote from the axis of rotation of the lever teeth.
  • This embodiment variant of a swivel fitting according to the invention also makes possible a locking of the levers relative to one another in the return movement by means of the friction disk frictionally engaging the toothing.
  • the control disk preferably has at least one elongated hole in which a fixing and control bolt fastened to the first lever is accommodated.
  • the longitudinal extension of the oblong hole is dimensioned such that the fixing and control bolt is displaceable relative to the control disk by the switching angle, without the control disk itself being moved relative to the second lever.
  • control disk preferably has a distance from the slot in the plane of the control disk
  • the Umschaltkontur is preferably designed as stamped out of an annular disc of the control disc and bent towards the latch lobes. This flap causes the fixation of the latch in the non-latching position.
  • the toothing itself is designed according to a further alternative embodiment variant as a circular internal toothing formed on a lever head of the second lever.
  • the toothing is designed as a circular toothed disc accommodated between the lever heads of the second lever and with internal toothing formed thereon.
  • the toothing and the control disk is received between the lever heads of the lid, wherein the second spring element between the lever heads, the teeth and the Control disk circumferentially embracing, is arranged.
  • the second spring element allows so in addition to the pressure of the pawl and the protection of the teeth, the control disk and the pawl from dirt, which further increases the life of the swivel fitting.
  • FIG. 1 shows an exploded perspective view of a first embodiment variant of a swivel fitting according to the invention
  • FIG. 2 shows a plan view of the second lever according to FIG. 1 with teeth fixed thereto
  • FIG. 3 shows a side view of the first lever according to FIG. 1 with latches attached thereto
  • Figure 4 is a plan view of the control disk of Figure 1
  • Figure 5 is a schematic plan view of the pivot fitting according to
  • FIG. 6 shows a representation of the pivoting stop corresponding to FIG. 5 in a first latching position
  • FIG. 7 shows an enlarged view of a detail of the swivel fitting according to FIG. 5 with levers pivoted further in the adjustment direction with the pawl brought out of engagement with the toothing
  • FIG. 8 shows a representation corresponding to FIG. 7 with an alternative embodiment of the control disk, in which the pawl, when the levers are adjusted relative to one another, slides in the adjustment direction from a latching position into the next latching position, FIG.
  • FIG. 9 shows a plan view corresponding to FIG. 5 in a latching position
  • FIG. 1 0 is a plan view of the pivot fitting according to FIG. 5 in the switchover position, in which the two levers are pivoted out of the basic position by the entire possible angle
  • FIG. 11 is an illustration of the swivel fitting corresponding to FIG. 5 during a pivoting in the return direction;
  • FIG. 1 2 shows an illustration, corresponding to FIG. 5, of the pivoting stop in a position before the direction of movement of the levers relative to one another in the adjustment direction,
  • FIGS. 1 and 3 of FIG. 5 show corresponding representations of the pivoting fitting during the movement in the adjustment direction or loading direction in order to achieve the latching position shown in FIG. 14,
  • Figure 1 5 is an exploded perspective view of an alternative
  • FIGS. 1 6a and 1 6b show different views of a control disk used in the swivel fitting according to FIG.
  • FIG. 1 7 is a representation corresponding to Figure 5 of a pivot fitting shown in Figure 1 5 in the basic position of the lever, Figure 1 8 a of Figure 1 7 corresponding representation of the pivot fitting in the maximum pivoted position of the lever,
  • Figure 1 9 a of Figure 1 8 corresponding representation of the Schwenkbe- beat during the movement of the lever to each other in
  • Figures 13 and 14 corresponding representations of the pivot fitting when switching the lever in the movement in the return direction back in the adjustment
  • FIG. 24 shows an exploded perspective view of a further embodiment variant of a swivel fitting according to the invention
  • FIG. 25 shows a perspective view of a further embodiment variant of a toothing formed integrally with a force shaft
  • FIG. 26 shows a perspective view of a further variant of a pawl
  • FIG. 27 shows a perspective view of the toothing according to FIG. 25 with control disc fixed thereto;
  • FIG. 28 shows a side view of the toothing according to FIG. 27,
  • 29 and 30 are plan views of the toothing according to FIG. 27 with two
  • the reference numeral 500 designates a piece of furniture which is here exemplified as upholstered furniture, which is here designed as seating, in particular a chair, with a body 501, a backrest 502 and an armrest or headrest 503.
  • the armrest or headrest 503 is fastened in different positions on the body 501 in a latchable manner. To adjust this serves a pivot fitting provided here with the reference numeral 1, with which it is possible to adjust the arm or headrest 503 from the basic position shown in Figure 31 over the angled position shown in Figure 32 in the upright position shown in Figure 33 and to lock in these respective positions.
  • pivot fitting 1 to which various embodiments of swivel fittings 100, 200, 300 are described below, it is also possible to move this arm or headrest 503 from the position shown in Figure 33 back into the position shown in Figure 32, without having to pivot back the arm or headrest 503 initially shown in Figure 31 basic position.
  • a pivot fitting 1, 100, 200, 300, 400 has a first lever 2, 1 20, 220, 320, 420 and a second lever 3, 130, 230, 330, which about a common axis D from a basic position out to a predetermined angle ⁇ are pivotally mounted to each other.
  • the pivot fitting 1, 1 00, 200, 300, 400 further has a
  • the clamping mechanism has a toothing 4, 140, 240, 340, 440 secured against rotation on the second lever 3, 130, 230, 330, as well as at least one pivotally mounted on the first lever 2, 1 20, 220, 320, 420 and in the direction of the toothing 4, 140, 240, 340, 440 loaded pawl 5, 1 50, 250, 350, 450, which is in a detent position in engagement with the teeth 4, 140, 240, 340, 440.
  • the clamping mechanism further comprises a rotatably mounted about the common axis D control disk 7, 1 70, 270, 370, 470, with which the at least one pawl 5, 1 50, 250, 350, 450 after passing the predetermined angle ⁇ from the Starting position in an adjustment direction V out of engagement with the teeth 4, 140, 240, 340, 440 can be brought, so that when disengaged from the teeth 4, 140, 240, 340, 440 placed pawl 5, 150, 250, 350 by driving over the predetermined angle ⁇ in a return direction R, the two levers 2, 1 20, 220, 320, 420, 3, 1 30, 230, 330 are pivotable back into the basic position.
  • the control disk 7, 1 70, 270, 370, 470 is frictionally engaged with the teeth 4, 140, 240, 340, 440 and rotatably supported by a switching angle ß relative to the first lever 2, 120, 220, 320, 420.
  • the first lever 2 consists of two substantially identical lids, namely a first lid 2a and a second lid 2b.
  • Each of these covers 2a, 2b has a lever arm 21, which merges into a lever head 23 via a bending region 22.
  • a circular receptacle 25 is provided, which serves to carry out a force wave 6 with polygonal lateral surface.
  • any other shape that brings about a positive connection such as a tongue and groove connection, can be selected.
  • the toothing 4 is formed in this embodiment in the form of two part-circular toothed pulleys 4a, 4b.
  • Each of the toothed disks 4a, 4b has an external toothing formed on a part-circular outer edge.
  • the toothed discs 4a, 4b are provided with a recess 44 with the force wave 6 corresponding polygonal cross section for receiving the power shaft 6.
  • the power shaft 6 extends through the receptacles 25 of the first lid 2a and the second lid 2b, the toothed discs 4a, 4b, a spring element 1 0 and a receptacle 33 of the second lever 3, which also has a polygonal cross section corresponding to the force shaft 6 , so that the toothing 4 is rotatably coupled to the second lever 3.
  • the pawl 5 serving for latching with the toothing 4 is, as can be seen in FIGS. 1 and 3, in this embodiment two-part composed of two pawl elements 5a, 5b, one of the pawl elements 5a, 5b in one plane with one of the toothed disks 4a, 4b is arranged.
  • the pawl elements 5a, 5b are mounted pivotably on the first lever 2 via a pawl pin 9.
  • the pawl pin 9 extends between the two lever heads 23 of the first lid 2a and the second lid 2b.
  • the control disk 7 is received between the two part-circular toothed pulleys 4a, 4b.
  • a plan view of such a variant of a control disk 7 is shown in FIG.
  • the control disk 7 consists essentially of a ring 71 with a central recess 72 through which the power shaft 6 extends in the mounted state, but is not rotatably coupled thereto.
  • the control disk 7 has on an outer circumference a recess 73 in which a on the first lever 2, here between the lever heads 23 of the first lid 2a and the second lid 2b extending control pin 8 is added.
  • the recess 73 is dimensioned such that the control pin 8 is displaceable relative to the control disk 7 by the switching angle ⁇ .
  • the width of the recess 73 in the circumferential direction is correspondingly larger than the diameter of the control pin 8.
  • the width of this recess 73 is dimensioned such that the control disk 7 by the switching angle ß relative to the control pin 8 and the pawl pin 9 is displaceable.
  • the counter-pressure is effected by a through the receptacle 25 of the first lid 2a reaching through throat piece of the power shaft 6, which bears against the end face of the first toothing part 4a.
  • a second spring element 1 1 is provided which is arranged between the lever heads 23 of the first lid 2a and the second lid 2b and surrounds the gap circumferentially.
  • the two lower ends of this second spring element 1 1, which is designed here as a leaf spring and also serves to cover the gap between the lever heads 23 of the first lid 2 a and 2 b of the second lid are bent in the direction of the pawl elements 5 a, 5 b and press it the pawl elements 5a, 5b steadily in the direction of the external toothing 42 of the two gear parts 4a, 4b.
  • a central bolt 1 2 which extends through a central bore of the power shaft 6 through into a counter-sunk 14 on the outside of the lever head 32 of the second lever 3.
  • FIGS 5 to 14 shows a basic position of the swivel fitting 1 is shown with exposed clamping mechanism.
  • control disk 7 in the basic position the control disk 7 is positioned such that a second support surface 76 of a switching contour 74 of the control disk 7 rests on a second support surface 56 of the pawl 5, whereby the teeth 52 of the pawl 5 are disengaged from the toothing 4 stands.
  • the control pin 8 is located in this position on a right side edge of the recess 73 of the control disk 7. Now, if the first lever 2 is pivoted in the adjustment direction V relative to the second lever 3, thereby the control pin 8 is moved in the recess 73 of the control disk 7 away from the right side edge in the direction of the left side edge. At the same time the pawl 5, which is fixed on the fixing pin 9, but pivotally mounted on the first lever 2, moves in the adjustment direction V.
  • the switching contour 74 slides down from the second support surface 56 of the pawl 5 and dips into the recess 54 of the pawl 5.
  • the pawl 5 is pressed by means of the second spring element 1 1 in the external teeth 42 of the toothing 4 in a first detent position. Reaching this first locking position is audible by striking the pawl 5 to the teeth 4.
  • This first locking position is preferably carried out at a pivoting of the first lever 2 relative to the second lever 3 by 5 °.
  • the control disk 7 is frictionally held in this first pivoting movement between the two gear parts 4a and 4b.
  • the frictional mounting of the control disk 7 between the toothing parts 4a, 4b of the toothing 4 is, as described above, effected by the here formed as a plate spring first spring element 1 0.
  • a first support surface 75 of the changeover contour 74 of the control disk 7 is pushed onto a first support surface 55 of the pawl 5 to the left of the recess 54 and thus takes the teeth 52 of the pawl 5 again disengaged from a variant shown in Figure 7 the outer teeth 42 of the toothing 4, so that in a Rothverschwenkung of the first lever 2 in the adjustment direction V the pawl 5 is held by the now common movement with the control disk 7 out of engagement with the teeth 4.
  • the control disk 7 is moved along with the first fixed lever 2 stationary fixed control bolt 8.
  • the second lever 2 is due to the preferred shape of the teeth of the teeth 4 and the teeth 52 of the pawl 5 slightly, preferably by an angle of about 2 degrees, in the return direction R moves.
  • the geometry of Umschaltkontur 74 'of the control disk 7 is different from the Umschaltkontur 74 (shown in Figure 7), to the effect that the Umschaltkontur 74 ' has a smaller angular width, so that the pawl 5 in further movement of the first lever 2 is moved from the position shown in Figure 6 in the adjustment direction V from one locking position to the next.
  • the geometry of the teeth 52 of the pawl 5 and the external teeth 42 of the toothing 4 is selected so that a shift in the adjustment allows and a shift in the return direction is hindered.
  • control disk 7 Since moves in this pivotal movement of the control pin 8 within the recess 73 of the control disk 7, the control disk 7 remains stationary in place during this pivotal movement due to friction.
  • the pawl 5 itself is pushed down by the pivoting movement of the second support surface of the Umschaltkontur 74 of the control disk 7, so that the teeth 52 of the pawl 5 engage with the external teeth 42 of the toothing 4. This position is shown in FIG.
  • a control disk 1 70 is frictionally pressed against a toothing 140.
  • the toothing 140 is embodied here as an internal toothing integrated in the lever head 1 32 of the second lever 1 30.
  • the second lever 1 30 is mounted in this embodiment between the first cover 1 20 a and the second cover 1 20 b of the first lever 120.
  • a central pin 1 02 is used, which is received in a bore 124 of the two covers 1 20a, 1 20b and in a receptacle 135 in the lever head 132 of the second lever 1 30.
  • the pivot fitting 1 00 has two pawls 1 50 arranged spaced apart, point-symmetrically around the axis of rotation D and provided with external teeth 1 52 corresponding to the internal teeth 140 on the second lever 1 30.
  • the pawls 1 50 are rotatably fixed to the first cover 1 20a and the second cover 1 20b in respective receptacles 125 via respective fixing and control bolts 1 80, 1 90.
  • the pressure of the pawls 1 50 on the toothing 140 formed as an internal toothing is effected by a second spring element 101, which is preferably designed as a U-shaped or V-shaped leaf spring, with which the teeth 15 of the pawls 150 are pressed into the internal toothing of the toothing 140 ,
  • the control disk 170 has, as in Figure 1 6 visible in this case, an annular disc 1 71 with a central bearing hole 1 72, through which the central bolt 1 02 extends.
  • annular disc 1 72 further slots 1 73 are provided through which the fixing and control pin 1 80, 1 90 extend.
  • the length of these elongated holes 1 73 is carried out according to the angular width of the recess 73 of the control disk 7 of the first embodiment to allow pivotal movement of the first lever 1 20 relative to the second lever 1 30 by a predetermined angle without the control disk. 1 70 is turned.
  • the preferred four Umschaltkonturen 174 of the control disk 170 are formed in this embodiment as a punched out of an annular disc 1 71 and the pawl 1 50 out bent tabs, as shown by way of example in Figures 1 6a and 1 6b.
  • the bearing opening 1 72 is surrounded by a cylindrical neck portion 1 75.
  • the first spring element 1 1 0 is, as shown in Figure 1 5, designed as a ring spring plate which is fixed by pins 1 33 fixed to the second lever 1 30.
  • the pressing force acting axially towards the toothing 140 is effected by radially inwardly directed support tongues 11 1 formed on the first spring element 11, which ensures the necessary frictional engagement between the control disk 1 70 and the toothing 140.
  • FIG. 7 shows the basic position of the two levers 1 20, 1 30 to each other. In this basic position, the two pawls 1 50 are disengaged from the internal teeth of the toothing 140th
  • Figure 1 8 shows the pivoted by the maximum angle ⁇ switching position of the lever 1 20, 1 30 to each other. In this position, a portion of the teeth 1 52 of the pawls 1 50 is pushed onto a survey 141 of the toothing 140.
  • This elevation 141 is integrally formed on the toothing 140 in the illustrated embodiment. It is also conceivable, however, to form the elevation 141 as a mountable insert which is placed on a corresponding position of the toothing 140.
  • the fixing and control pins 1 80, 1 90 are in this switching position at the front edge of the elongated holes 173 of the control disk 1 70 in the adjustment direction V.
  • the pawls 1 50 are moved away from the respective switching contour 1 74, so that the teeth 1 52 of the pawls 1 50 strike the toothing 140, so that a subsequent slight pivoting of the first lever 1 20 relative to the second lever 1 30 in Return direction R, the locking position shown in Figure 21 is achieved.
  • FIGS. 22 and 23 show exploded views of further embodiments of a pivot fitting 200, 300 according to the invention.
  • the swivel fittings 200, 300 essentially correspond to the swivel fitting 1 00 described with reference to FIGS.
  • the toothing 240 is formed on a separate annular body 241 in the swivel fitting 200 shown in Figure 22.
  • the toothing 243 is also formed here as an internal toothing, in which the teeth 252 of pawls 250 engage.
  • the annular body 241 of the toothing 240 has, analogously to the swivel fitting 1 shown in FIG. 1, a polygonal receptacle 242 in which a force shaft 260 engages.
  • the power shaft 260 also engages in the second lever 230, there in a correspondingly shaped receptacle 233 with a polygonal cross-section, so that the second lever 230 rotatably coupled to the toothing 240.
  • the first spring element 21 0 and the control disk 270 is formed according to the embodiment of the swivel fitting 1 00 described in Figures 1 5 to 21.
  • the toothing 340 is again formed directly on the second lever 330 analogously to the embodiment variant of the swivel fitting 1 00 described in FIGS.
  • the first rotary lever 320 is configured such that a lever head 322 extends in a straight line from a lever arm 321 and has a receptacle 323 with a polygonal cross section.
  • the lid of the first lever 320 enclosing the clamping mechanism are here designed as separate components 324, 325, so that correspondingly the first lid 324 and the second lid 325 have corresponding central recesses 327 with a polygonal cross section, so that the lids 324, 325 are rotationally fixed to the first lever 320 are coupled.
  • Figure 24 shows an exploded view of another embodiment of a pivot fitting 400 according to the invention without representation of the second lever, which preferably corresponds to the lever 3 shown in the first embodiment shown in Figures 1 to 14 corresponds.
  • the swivel fitting 400 corresponds in essential parts to the swivel fitting 1 described with reference to FIGS. 1 to 14. Accordingly, the reference numerals assigned in FIGS. 24 to 30 are assigned according to the first embodiment variant shown in FIG.
  • the toothing 440 is here formed integrally with the force shaft 460, in particular as a sintered part.
  • the power shaft 460 is designed for non-rotatable connection with the second lever, not shown here, with an example polygonal outer contour 461.
  • the power shaft 460 further includes a receptacle 462 in which the central pin 1 2 is added.
  • the second lever is rotatably coupled to the teeth 440.
  • the control disk 470 is formed in this embodiment, as shown in Figure 28, as a plate spring or spring plate, which is arranged laterally on the annular body 441 of the toothing 440.
  • annular disk 480 pushed onto a section of the power shaft 460 presses the control disk 470 under pretension against the annular body 441 of the toothing 440.
  • the annular disk 480 is press-fitted to the outer contour 461, for example in the manner of a shaft lock the power shaft 460 pressed. It is also conceivable to weld the annular disk 480 to the power shaft 460. It is conceivable to provide on the outer contour 461 of the power shaft 460 an undercut which can be pressed onto the annular disk 480. representation In addition, it is also conceivable to suppress the annular disc 480 with a retaining ring or to replace it with such.
  • the annular disk 480 has, for rotational securing relative to the force shaft 460, tongues 482 which extend radially inwards from an annular base body 481, as shown in FIG.
  • the pivot fitting 400 according to only one pawl 450.
  • This pawl 450 is, as shown in Figure 26, in contrast to the first embodiment in one piece with a pawl 490, preferably as a sintered part, formed and mounted on this pivotally mounted on the first lever 420.
  • the assembly is simplified due to the reduced number of components.
  • the changeover contour 474 shown in FIG. 29 corresponds to the variant described with reference to the first exemplary embodiment, wherein the changeover contour 474 is shaped such that the pawl 450 is disengaged when the levers are adjusted relative to each other in the adjustment direction from a predetermined adjustment angle on a first support surface 475 of the changeover contour 474 held with the toothing, which as described above when adjusting the lever relative to each other in the adjustment allows a silent adjustment, since the pawl 450 does not come into engagement with the teeth 440 by the support on the Umschaltkontur 474.
  • this first support surface 475 is missing, so that the pawl 450 is guided in contact with the toothing 440 when the levers 420, 3 are displaced relative to one another in the adjustment direction.
  • a backrest of a seat can also be rotated about a vertical pivot axis D, so that it is not the inclination of the backrest but the angular position of the backrest that is adjusted in space.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

L'invention concerne une ferrure pivotante (1, 100, 200, 300, 400), en particulier pour des parties de meuble mobiles sur des meubles (400), présentant un premier levier (2, 120, 220, 320) et un deuxième levier (3, 130, 230, 330) qui sont logés de manière à pouvoir pivoter l'un par rapport à l'autre autour d'un axe commun (D) à partir d'une position de base autour d'un angle prédéterminé (α), un mécanisme de serrage qui permet de fixer l'un par rapport à l'autre les deux leviers (2, 120, 220, 320, 3, 130, 230, 330) dans des positions angulaires différentes à l'intérieur de l'angle prédéterminé (α), le mécanisme de serrage présentant : une denture (4, 140, 240, 340) fixée de manière bloquée en rotation sur le deuxième levier (3, 30, 230, 330), au moins une poignée (5, 150, 250, 350) logée de manière pivotante sur le premier levier (2, 120, 220, 320) et sollicitée dans le sens vers la denture (4), qui est en prise avec la denture (4, 140, 240, 340) dans une position encliquetée, un disque de commande (7, 170, 270, 370) logé de manière à pouvoir tourner autour de l'axe commun (D), qui permet d'amener ladite au moins une poignée (5, 150, 250, 350), après le franchissement de l'angle prédéterminé (α), à partir de la position de base dans une direction de réglage (V) hors prise avec la denture (4, 140, 240, 340), de telle sorte que, lorsque la poignée (5, 150, 250, 350) a été amenée hors prise avec la denture (4, 140, 240, 340) par franchissement de l'angle prédéterminé (α) dans une direction de réinitialisation (R), les deux leviers (2, 120, 220, 320, 3, 130, 230, 330) peuvent être repivotés dans la position de base, le disque de commande (7, 170, 270, 370) pouvant être entraîné par frottement par contact avec la denture (4, 140, 240, 340) et étant logé de manière à pouvoir tourner par rapport au premier levier (2, 120, 220, 320) autour d'un angle de commutation (β). Par ailleurs, un meuble est également décrit.
EP18722546.1A 2017-05-11 2018-05-07 Ferrure pivotante et meuble Active EP3621489B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18722546T PL3621489T3 (pl) 2017-05-11 2018-05-07 Okucie wychylne i mebel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017110246.9A DE102017110246A1 (de) 2017-05-11 2017-05-11 Schwenkbeschlag und Möbel
PCT/EP2018/061683 WO2018206487A1 (fr) 2017-05-11 2018-05-07 Ferrure pivotante et meuble

Publications (2)

Publication Number Publication Date
EP3621489A1 true EP3621489A1 (fr) 2020-03-18
EP3621489B1 EP3621489B1 (fr) 2021-02-24

Family

ID=62116481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18722546.1A Active EP3621489B1 (fr) 2017-05-11 2018-05-07 Ferrure pivotante et meuble

Country Status (8)

Country Link
US (1) US10993535B2 (fr)
EP (1) EP3621489B1 (fr)
CN (1) CN110612047B (fr)
DE (1) DE102017110246A1 (fr)
ES (1) ES2872254T3 (fr)
PL (1) PL3621489T3 (fr)
RU (1) RU2762644C2 (fr)
WO (1) WO2018206487A1 (fr)

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Also Published As

Publication number Publication date
CN110612047A (zh) 2019-12-24
RU2762644C2 (ru) 2021-12-21
EP3621489B1 (fr) 2021-02-24
US10993535B2 (en) 2021-05-04
RU2019137012A (ru) 2021-06-11
ES2872254T3 (es) 2021-11-02
WO2018206487A1 (fr) 2018-11-15
CN110612047B (zh) 2022-11-22
RU2019137012A3 (fr) 2021-08-16
PL3621489T3 (pl) 2021-08-02
DE102017110246A1 (de) 2018-11-15
US20210007487A1 (en) 2021-01-14

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