EP1221878A1 - Dispositif de reglage pour lits, matelas, fauteuils et similaires, sommier a lattes reglable et rembourrage de siege ou de lit reglable - Google Patents

Dispositif de reglage pour lits, matelas, fauteuils et similaires, sommier a lattes reglable et rembourrage de siege ou de lit reglable

Info

Publication number
EP1221878A1
EP1221878A1 EP00972698A EP00972698A EP1221878A1 EP 1221878 A1 EP1221878 A1 EP 1221878A1 EP 00972698 A EP00972698 A EP 00972698A EP 00972698 A EP00972698 A EP 00972698A EP 1221878 A1 EP1221878 A1 EP 1221878A1
Authority
EP
European Patent Office
Prior art keywords
adjusting device
elements
web
lever
support
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.)
Withdrawn
Application number
EP00972698A
Other languages
German (de)
English (en)
Inventor
Rolf Farmont
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.)
Westmont Technik GmbH and Co KG
Original Assignee
Westmont Technik 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 Westmont Technik GmbH and Co KG filed Critical Westmont Technik GmbH and Co KG
Publication of EP1221878A1 publication Critical patent/EP1221878A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/08—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously
    • 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
    • A47C1/14—Beach chairs ; Chairs for outdoor use, e.g. chairs for relaxation or sun-tanning
    • A47C1/143—Chaise lounges
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/04—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head -, foot -, or like rests for beds, sofas or the like with adjustable 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
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/123—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for beds or mattresses
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for chairs

Definitions

  • Adjustment device for beds, mattresses, armchairs and the like, adjustable slatted frame and adjustable seat or couch cushion
  • the invention relates to an adjusting device for beds, mattresses, armchairs and the like with the features of the preamble of claim 1; it also relates to an adjustable slatted frame and an adjustable seat or lying cushion.
  • the invention is based on the basic idea that the support elements protrude from the support level, ie. H. to provide cross members extending to the support plane in such a way that the cross members are pivotally connected to one another in their first end regions while maintaining their original spacing, and distance-changing means change the spacings of adjacent cross members in the region of their levers opposite the pivot joints, i. H. reduce or enlarge.
  • the web elements therefore represent one-sided levers, at one end of which the joints of the support elements are provided and at the other ends the actuating forces act, by means of which the support elements are pivoted relative to one another by shortening or increasing the spacing of the free ends of the web elements, by a parallel to their longitudinal direction pivot axis.
  • pivoting handle limits are preferably provided between adjacent web elements and / or support elements. This limits the maximum change in inclination or course at least in one direction.
  • Distance means can also be provided, which likewise limit the maximum change in the opposite direction.
  • a space-saving and energy-saving adjusting device preferably has, as a change in distance, a drawstring that can be wound up and unwound, which is guided around deflection rollers in the sense of a force reduction, rigid or pivotable levers acting as deflection roller holders in the sense of an improved force reduction.
  • Adjustment devices according to the invention can be used in conjunction with slatted frames or the slat elements can be integrated into the support elements - or vice versa.
  • An adjustment device is particularly suitable for motorized, in particular electrical, adjustment drives and also allows integration into a mattress or upholstery.
  • FIG. 1 shows a relaxation armchair with an integrated adjusting device in a perspective view
  • 2a shows an adjusting device in a first embodiment with a straight stretch in a side view (schematic); 2b shows the same adjusting device in an approximately maximally changed, diversely designed course;
  • FIG. 3a shows the adjusting device according to FIG. 2a in perspective, in sections
  • FIG. 3b shows the adjusting device according to FIG. 2b in a perspective illustration, in sections;
  • FIG. 4 shows an end view of a support element, in sections, of an adjusting device in a second embodiment
  • FIG. 5 shows a third embodiment of an adjustment device in side view
  • 6A shows a fourth embodiment of an adjustment device in a side view with the support plane stretched straight
  • 6B shows the same adjusting device in a partially already inclined course
  • FIGS. 2a to 3b shows the adjustment device according to FIGS. 2a to 3b in vertical section -
  • 10A shows a seventh embodiment of an adjustment device in side view with the support plane stretched straight out as well
  • 11A shows an eighth embodiment of an adjustment device in a broken side view
  • 11B shows the first half of a pair of chain links in a perspective view of the same adjusting device
  • FIG. 12A shows a ninth embodiment of an adjustment device in a broken side view (similar to that in FIG. 11A);
  • FIG. 12B shows a perspective view of the first half of a pair of chain links from the same adjusting device
  • FIG. 12C shows a perspective view (in sections) of the adjusting device according to FIG. 12A;
  • 12D to 12F show a movement sequence of the head part of the adjusting device according to the ninth embodiment
  • 12K shows a movement sequence of the foot part of the adjusting device according to the ninth embodiment
  • 13 shows a perspective enlarged view (in sections) of the adjusting device according to FIGS. 12A to 12K;
  • FIGS. 12A to 13 shows a slatted frame according to the exemplary embodiment according to FIGS. 12A to 13;
  • FIG. 15 shows a bed or couch cushion according to the ninth embodiment according to FIGS. 12A to 14 in a perspective view
  • FIG. 17 shows an eleventh embodiment of an adjustment device in a broken side view - in perspective.
  • FIG. 1 only shows the manner in which a relax armchair equipped with an adjustment device according to the invention can be adjusted in its backrest area and in its footrest area.
  • FIG. 2a and 2b From Figs. 2a and 2b can be seen how a so-called slatted frame for beds can be varied in many ways by means of a single drive motor, it being evident from the approximately maximum curvature situation shown in FIG. 2b that the course of the curvature in the pivoting plane, that is to say in the longitudinal direction of the slatted frame, changes greatly can, e.g. B. can be realized from straight parts, areas bent to different degrees and areas bent in different directions.
  • a tension / compression band serving as a distance changing means can change its position with respect to the web elements to be explained from top to bottom or vice versa; for this purpose, the tension band is guided through corresponding inclined channels in the web elements at a position near one end region to a position near the opposite end region of the web elements.
  • FIG. 3a / b an adjustment device for a slatted frame without slats (also called bow) is shown.
  • Such adjustment devices are provided on both sides and essentially parallel to one another, in particular in the end regions of the bow on both sides.
  • the adjusting device designated overall by 10, has support elements 12 which consist of rigid bodies made of wood, metal, plastic or the like and which are provided and connected on both sides with swivel joints 14 running parallel to one another.
  • the support elements 12 are characterized by the fact that they together span a support level 12A, they also serve as spacing means, because due to their rigidity they cause the length of the support level to be in the region of
  • the support elements 12 can have a trapezoidal cross section. They generally have a not inconsiderable thickness at right angles to the support plane 12A and thus form a lever to be explained in terms of its function, which is referred to below as web element 12B. While in the drawing the spacing means and the web element are integrated in the support element 12, these components can also be separate from one another. B. in the third embodiment, according to FIG. 5, separate spacing means 12C. Furthermore, a flat guide channel 16 is provided in FIG. 3 in the upper (second) end region 12B ", which extends approximately parallel to the support plane 12A and a flat ribbon-shaped drawstring 18, z. B. a cord tape, or a tension / compression tape, e.g. B. made of spring steel, slidably receives.
  • the trapezoidal surfaces of the support elements 12 can be used as lateral stop surfaces 20A, 20B. If the tension band 18 is fastened to a web element 12B in its upper end region 12B "in FIG. 3a, the tension band 18 acts in the direction of the path shown in such a way that the two support elements 12 perform a pivoting movement relative to one another until stop surfaces 20A, 20B of adjacent support elements 12 come into contact with one another, thus achieving the maximum swivel path and thus the maximum change in inclination, as can be seen from Fig.
  • the maximum possible swivel angle of adjacent support elements 12 can be different Both a convex and a concave curvature of the support plane 12A can be achieved in the upper or lower end region of the web elements 12B.
  • the position of adjacent stops determines the strength of the minimum possible radius of curvature of the support plane 12A.
  • FIGS. 4 to 10 show possible variations in the implementation of the inventive concept.
  • a slatted base for beds, mattresses, armchairs or the like can also be realized according to the invention in that the bow, or the slat 38, is integrated with the support elements 12 on their two ends to form a one-piece component.
  • web elements 12B are provided, between which spacing means 12C, e.g. B. are articulated in the form of rods or plates.
  • 5 shows these web elements 12B with a front and a rear swivel joint 14, but in principle, a swivel joint is also sufficient, which connects two spacing means 12C and the intermediate web element 12B in an articulated manner to one another.
  • the web elements 12B are provided in their upper end regions 12B "with nose-shaped projections, which support stop surfaces 20A and 20B and serve to limit the maximum pivoting angle of adjacent support elements.
  • FIGS. 6a and 6b shows the implementation of the invention with a printing tape, e.g. B. a sheet metal strip made of spring steel.
  • a printing tape e.g. B. a sheet metal strip made of spring steel.
  • the hinge side and the distance change side of the web elements 12B are exchanged in comparison with the preceding examples.
  • other swivel limiters such as bendable drawstrings 20C, can also be used instead of stop surfaces.
  • the support level can be shifted towards the concave side of the adjusting device, whereas in other exemplary embodiments it is located on the convex side or more in the middle of the web elements. -
  • the choice of the position of the support level 12A influences the compression or elongation that a mattress or a cushion uses when using the adjusting devices according to the invention in the event of a change in the course, i.e. a curvature.
  • FIG. 7 shows an alternative embodiment to FIG. 4, in which a slatted frame is realized, the frame or slats 38 of which in turn occupy the entire width of the grate, but are made of a different material or in a different manufacturing process than the support elements with the web elements ,
  • this exemplary embodiment shows how a drive motor 28 and a winding drum 30 can be integrated into the adjusting device.
  • a winding drum 30 is installed in a support and web element 12, 12B in such a way that the winding drum bearings 30A, 30B are located within the support element 12. det.
  • An electric motor with gear 28 is mounted on the side. While the right half of this picture shows this drive element in a side view, it is shown in the left half of the picture in a vertical section through the drive axis and this makes several winding layers of a drawstring 18 - schematically - visible.
  • FIG. 8 shows in vertical section a complete seat upholstery or mattress 32, which consists of upper and lower protective layers 32A, 32B and a core layer 32C, for. B. a foam.
  • a complete seat upholstery or mattress 32 which consists of upper and lower protective layers 32A, 32B and a core layer 32C, for. B. a foam.
  • the adjustment device according to the exemplary embodiment according to FIG. 4.
  • groove-shaped recesses 34 are provided in the core layer 32C.
  • the guide channels 16 are expanded in a trumpet shape at their mouth ends to protect the tension band.
  • a pulley-like arrangement 26 can be used to improve the force reduction, in which deflection rollers 26A, 26B are provided on adjacent web elements 12B, about which the tension band 18 is deflected accordingly.
  • a reduction of approximately 2.5: 1 can be achieved.
  • suitable gear units such as worm gear units, a further considerable reduction in force is made possible.
  • FIGS. 10A and 10B Another embodiment with two power reduction ratios (except for a possibly existing reduction gear on the drive) is shown in FIGS. 10A and 10B.
  • a block and tackle-like arrangement 26 is combined with an additional force reduction lever 36 realized as a tensioning lever.
  • the deflection roller 26A is stationary on the associated web element
  • a curved tensioning lever (power reduction lever 36), which is arranged pivotably about a pivot bearing 36A provided on the second end region 12B "of the web element 12B.
  • An abutment 36B is provided on the respectively adjacent web element 12B, which is provided here as a tension bearing and therefore has a bearing surface 36C (The power reduction lever 36 is engaged.
  • the spacing gap between the web elements 12B in the region of their second ends 12B is changed.
  • the free end of the power reduction lever 36 is located near the swivel joints 14 attack the adjusting forces, e.g. the drawstring 18.
  • the force reduction ratio results from the ratio of the distances between the pivot bearing 36A and the abutment 36B or the deflection roller 26B. It is understood that this embodiment can also be used for the use of printing tapes or other drive means. It is also possible to couple the free ends of the force reduction levers 36 to one another by means of tension and pressure-resistant joint rods and thus to actively drive a change in the inclination or course of the slatted frame or the like in both adjustment directions. In contrast, in the other exemplary embodiments with a tension or compression band, this drive means is not coupled to the individual web elements, so that the active drive takes place in one direction of adjustment, while in the opposite direction of adjustment the gravitational force is used.
  • Another distance changing device which is not specifically shown in the drawing, uses a so-called riser cable, i.e. a flexible but pressure and tensile adjusting means with a spiral surface, which by rotation about the longitudinal axis a nut or a similar component which is held in a rotationally fixed manner can move longitudinally.
  • a guide channel correspondingly shaped on its inner surface could perform the function of a nut.
  • FIGS. 9 and 10a / b the application of a tension band with force reduction in the manner of a pulley system, to apply tensile forces in order to pivot the second end regions of the web elements opposite the swivel joints toward one another
  • a force-reducing drawstring arrangement can also serve to pivot the second web element ends away from one another.
  • FIG. 11B several, shown in perspective in FIG. 11B, each having a link 13, e.g.
  • web elements 12B punched out of flat metal form a "semi-rigid" chain shown in FIG. 11A, which - as exemplified in another exemplary embodiment according to FIG.
  • Each web element 12B has bores 14A, 14B in mutually offset planes, which, in cooperation with respectively adjacent web elements, serve as a swivel joint 14.
  • the bore forming the swivel joint part 14B is located at the coarser end of a force reduction lever 36, which is cranked on the web element 12B and is designed as a rigid one-sided lever and carries deflection rollers 26B on the outer lever end and in the middle lever region.
  • deflection rollers 26A which are also rotatably arranged on the adjacent web element 12B overlapped by the force reduction lever 36 by cranking in the end region 12B "thereof, so that they form a plane with the deflection foils 28B.
  • a flexible tension band
  • rollers 26B are wrapped around the deflection rollers 26A and 26B in such a way that a four-part pulley results.
  • the arrangement of the rollers 26B at different lever lengths of the power reduction lever 36 and at different heights of the web element 12B causes the tension band 18 in an approximately tangential direction to the respective pivot circle 15A, 15B of the two
  • Deflection rollers 26B around the swivel joint 14 take effect. This is shown in Fig. 11A dash-dotted and marked with double arrows.
  • a horizontal electric motor 28 with a gearbox serves as the tension belt drive, which drives a tension belt winding drum 30 and is arranged at the right end of the adjusting device 10 in FIG. 11A.
  • a tension exerted by the winding drum causes the tension band to first pivot the web element 12B of the adjusting device located at the opposite extreme end (left in FIG. 11A), because the least counterforce prevails there.
  • the leftmost web element 12B is already shown in the completely pivoted position, in which stop surfaces 20A, 20B arranged in pairs on the web elements 12B and the adjacent force reduction lever 36 are effective.
  • the web elements following the pivoted web element 12B on the right in the drawing are still non-pivoted. They rest against each other in the area of their crankings 13.
  • FIGS. 12A to 15 The following based on the fig.
  • the embodiment shown in FIGS. 12A to 15 is particularly preferred.
  • the web elements 12B forming a link chain - as in the previous exemplary embodiment - are again cranked and made of plastic in the present case.
  • the essential differences from the previous exemplary embodiment are that the pulley blocks 26 are only designed in two ways, while the force reduction levers 36 (As already in the exemplary embodiment according to FIGS. 10A / 10B) are pivotably connected at one end to a pivot bearing 36A with the web element 12B in its second end region 12B ".
  • the force reduction lever 36 is transmitted to the neighboring web element in the embodiment according to FIGS.
  • this thrust bearing has an articulated bore in the central region of the power reduction lever 36.
  • the thrust bearing 36B consists of a curved push rod, which is supported at one end on the contact surface 36C and at the other end on a bearing bore 36B 'in the end region 12B "on the adjacent web element 12B the action of the pulley 26 therefore requires a pivoting movement of the adjacent web element 12B
  • Swivel joint 14 wherein the abutment 36B is effective in the push and pull sense.
  • the guide arm 11 which in the example is segmented in the form of a segment of a circle and is attached to the web element 12B by cranking 13, only fulfills the task of achieving the linkage of adjacent web elements by the guide arm 11 providing the second swivel joint part 14B for the adjacent pivot element carries.
  • a groove for limiting the swivel angle is also provided on the guide arm 11 as a stop surface 20A.
  • the guide arm 11 therefore has no function as a force reduction lever.
  • FIG. 12C of the work situation shown in FIG. 12A is only intended to illustrate the geometric relationships and the interlinking of the web elements.
  • FIGS. 12A to 15 Using the figures 12D to 12F or 12G to 12K is now used for the exemplary embodiment according to FIGS. 12A to 15 explains the adjustment of a slatted frame with a head part (FIGS. 12D to 12F) and a foot part (FIGS. 12G to 12K).
  • FIGS. 12D to 12F For the adjustment device for an upper body part or head part of a slatted frame of a bed or a couch according to FIGS. 14 and 15 are in the embodiment of FIGS. 12D to 12F requires seven chain links 50 to 56, the operation of which is described below:
  • the chain link 50 carries two electric motors with an associated winding drum, which form the drive 28 ' for the head part and the drive 28 " for the foot part
  • the base part shown in FIGS. 12G to 12K consists of the chain link 50 and the further chain links 57 to 60.
  • the chain link 50 thus represents the common drive base for the head part and foot part.
  • the adjustment device of the foot part differs from that of the head part due to the different load conditions and inclination requirements. On the one hand, there is a slight, approximately evenly increasing inclination of the foot part, as shown in
  • the free end of the last chain link 60 of the foot part has a pivotable end area support 39.
  • This can be pivoted via a pulley 26 formed by the tension band 18 and a fixed roller 26A and two loose rollers 26B.
  • the end section support 39 is a two-armed, pivotable lever about a pivot bearing 39A on the chain link 60, on one end of which the pulley 26 acts against the restoring force of a spring 41 in the pivoting direction.
  • the end region support 39 carries a sliding element 39B which, when the end region support 39 is pivoted, moves from the rest position shown in FIG. 12G to the position shown in FIGS. 12H to 12K shown support position on a, in Figs. 12H to 12K, dash-dot indicated padding or bed frame 61 slidably supports.
  • the adjustment mechanism between the chain links 50 and 57 When the drawstring is further wound into the intermediate position shown in FIG. 12J, the adjustment mechanism between the chain links 50 and 57 first becomes active. This is constructed practically in the same way as the mechanism acting between the chain links 50, 51 or 51, 52 or 52, 53 on the head part, as was described in connection with FIG. 12A.
  • the adjustment mechanism between the chain links 57 and 58 deviates in that the pivot drive for the power reduction lever 36 no longer takes place via a pulley block, but via a link 37.
  • these chain links are still not pivoted to one another, that is to say they are aligned with one another in a straight line or stretched. It is only from FIG. 12K that a pivoting position is also achieved with this chain link pairing.
  • the tension band 18 acts on a comparatively short lever arm, namely between the swivel joint 14 of the chain link pair 59, 60 and a deflection roller 64 which is rotatably mounted on the chain link 59.
  • the separate motor drives 28 ' and 28 " for the headboard and footboard have the
  • Figs. 13 to 15 are (i) one of the two adjustment chains (Fig. 13), (ii) the entire slatted frame (Fig. 14) and (iii) the padded bed or mattress
  • cross members 65 can be provided on the inside between similar chain links on the head part and / or foot part lying opposite one another, e.g. B. be integrally connected to it.
  • traverses of this type which are not necessarily provided between each pair of chain links, have been omitted from the foot part.
  • 14 also shows hoops 38 which together form the support level 12A of a slatted frame. These bars or slats are between the neighboring ones
  • Swivel joint parts 14A, 14B provided, which improve the He- Belbelungen on bump-like projections 66 of the web elements 12B and the chain links 50 to 60 are provided. Such projections 66 are also provided where the distances between adjacent pivot joints 14 are greater. Therefore, all of the protrusions 66 are equidistant.
  • both padding 32 and the adjusting device 10 can be completely covered by protective layers 32A and 32B, respectively, in order to enable a uniform design, with the upper protective layer 32A and the lower protective layer 32B in the region of the overlap edge a Velcro or zipper 67 can be provided.
  • the embodiment according to FIGS. 16A to 16C shows a variant of an adjustment device for a foot part to the embodiment according to FIGS. 12G to 12K: the swivel adjustment between the chain links 50 and 57 corresponds to that from the embodiment according to FIGS. 12G to 12K.
  • the entire foot part for the vein relief position shown in FIG. 16B must be reached by means of a pivoting mechanism consisting of two-part pulley 26 and power reduction lever 36.
  • the pivoting movement between the chain links 57 and 58 is - in deviation - not synchronized. Rather, it should only become active when the drawstring is further wound up.
  • the reduction ratio of the force reduction lever 36 on the chain link 58 is lower than the reduction ratio for the chain link pairing 50, 57.
  • the tension band 18 already ends at the fastening point 18A provided on the chain link 58.
  • synchronization means 19A and 37 are provided, by which the first pivoting of the chain link pairs 50, 57 is promoted.
  • the stretched position is determined by a strong tension spring 40 articulated in the chain link 60 reached, which is coupled to the free end of a power reduction lever 36 pivotally attached to chain link 59 via a tension band 19B.
  • the tension band 19B loads the power reduction lever 36 of the chain link 59 in a clockwise direction.
  • An abutment 36B as explained in connection with Fig. 12A, is pivotally attached at one end to the abutment surface 36C of the power reduction lever 36 and at the other end to a bearing bore 36B 'of the chain link 60 and therefore acts as a thrust bearing which links the chain links 59 and 60 in response to the tension spring force 40 holds in the stretched position.
  • the force reduction lever 36 of the chain link 59 is via a synchronization link 37, as is shown in FIGS. 12G to 12K is known, with one closest
  • Chain link 58 pivotally connected auxiliary lever 21 and also the auxiliary lever 21 of the chain link 58 is pivotally connected to a stretching lever serving as an abutment 36B, which acts at the other end on a bearing bore 36B 'of the chain link 59. Since the auxiliary lever 21 is tensioned clockwise by means of the tension band 19B and the link 37, this holds on
  • Another tension band 19A which connects the auxiliary lever 21 of the chain link 58 with the force reduction lever 36 of the chain link 58, has no particular effect in this position of the adjusting device shown in FIG. 16B. If in this position the chain link 60 is loaded from above by a person or an object that is too heavy, it can evade this pressure due to the tension spring 40 downward, without thereby loading the adjusting device between the chain links 50 and 57 or 57 and 58 , Only between the chain links 58 and 59 and 59 and 60 then there is a certain pivoting movement downwards due to the uprighting of the auxiliary lever 21.
  • Tractive force is greater than the opposite acting tensile force emanating from the spring 40. Due to the forced pivoting of the auxiliary lever 21, the further winding of the tension band 18 between the chain links 58 and 59 on the one hand and 59 and 60 on the other hand causes a downward synchronized pivoting movement by the handlebar 37, so that finally the relax position assumed in FIG. 16C is taken up by the chain links 59 and 60.
  • cranked chain links 51, 52, 53, and 54 are in turn for an arrangement in pairs (similar to that in FIG.
  • each web element 12B is in the second end region 12B "
  • Power reduction lever 36 is pivotally articulated by means of a pivot bearing 36A. At its free end it carries the "loose" deflection roller 26B of a two-part block and tackle 26, the "fixed” roller 26A of which is rotatably fastened to the adjacent web element 12B in its second end region 12B. If a pulling movement is now carried out on the right end of the tension band 18 in the figure, the force reduction levers 36 are pivoted in sequence, ie starting on the left in the figure, counterclockwise into a position as shown in FIG. 17 for the left force reduction lever 36 , An approximately semicircular contact surface 36C provided on the force reduction lever 36 in pairs is supported during this pivoting movement on a roller serving as an abutment 36B.

Abstract

L'invention concerne un dispositif réglable (10) pour des lits, matelas, fauteuils et similaires. Ce dispositif comprend plusieurs éléments supports (12) s'étendant transversalement à une direction de réglage (22A) et définissant conjointement un plan de support (12A). Il comprend également au moins une unité d'entraînement (18, 26, 36) servant à faire pivoter les éléments supports (12) les uns par rapport aux autres, afin de modifier l'inclinaison ou la forme du plan de support (12A). L'invention vise à réaliser un dispositif qui soit le plus compact possible. A cet effet, a) les éléments supports (12) comportent chacun au moins un élément de liaison (12B) s'étendant transversalement au plan de support (12), b) chaque élément de liaison (12B) présente une articulation pivotante (14) au niveau de sa première zone d'extrémité (12B'), c) des moyens d'écartement (12C) servant à maintenir les éléments de liaison adjacents (12B) à distance les uns des autres sont placés dans la zone (12B') des articulations pivotantes (14), d) des moyens de modification d'écartement (18) servant à faire varier la distance entre des éléments de liaison adjacents (12B) sont placés dans la zone (12B'') de leurs deuxièmes extrémités, opposées aux articulations pivotantes (14).
EP00972698A 1999-10-08 2000-10-07 Dispositif de reglage pour lits, matelas, fauteuils et similaires, sommier a lattes reglable et rembourrage de siege ou de lit reglable Withdrawn EP1221878A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29917813U DE29917813U1 (de) 1999-10-08 1999-10-08 Verstellvorrichtung für Betten, Matratzen, Sessel u.dgl.
DE29917813U 1999-10-08
PCT/EP2000/009846 WO2001026509A1 (fr) 1999-10-08 2000-10-07 Dispositif de reglage pour lits, matelas, fauteuils et similaires, sommier a lattes reglable et rembourrage de siege ou de lit reglable

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US (1) US6877816B1 (fr)
EP (1) EP1221878A1 (fr)
JP (1) JP2003511131A (fr)
CN (1) CN1378429A (fr)
AU (1) AU1134201A (fr)
DE (1) DE29917813U1 (fr)
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WO (1) WO2001026509A1 (fr)

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Publication number Publication date
CN1378429A (zh) 2002-11-06
WO2001026509A1 (fr) 2001-04-19
DE29917813U1 (de) 2001-02-22
US6877816B1 (en) 2005-04-12
AU1134201A (en) 2001-04-23
JP2003511131A (ja) 2003-03-25
RU2002112223A (ru) 2003-11-20

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