EP0291840A1 - Dispositif de positionnement avec plusieurs pas pour un support de tête ou de pied - Google Patents

Dispositif de positionnement avec plusieurs pas pour un support de tête ou de pied Download PDF

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Publication number
EP0291840A1
EP0291840A1 EP88107566A EP88107566A EP0291840A1 EP 0291840 A1 EP0291840 A1 EP 0291840A1 EP 88107566 A EP88107566 A EP 88107566A EP 88107566 A EP88107566 A EP 88107566A EP 0291840 A1 EP0291840 A1 EP 0291840A1
Authority
EP
European Patent Office
Prior art keywords
locking
head
rail
plate according
foot plate
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
EP88107566A
Other languages
German (de)
English (en)
Other versions
EP0291840B1 (fr
Inventor
Kurt Ehrenberg
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.)
Lanz Industrie Technik AG
Original Assignee
Lanz Industrie Technik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lanz Industrie Technik AG filed Critical Lanz Industrie Technik AG
Priority to AT88107566T priority Critical patent/ATE75116T1/de
Publication of EP0291840A1 publication Critical patent/EP0291840A1/fr
Application granted granted Critical
Publication of EP0291840B1 publication Critical patent/EP0291840B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • A47C20/043—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by means of peg-and-notch or pawl-and-ratchet mechanism

Definitions

  • the invention relates to a reversible head or foot switch in an upper position with several step detents for pivotable frame parts such as mattress frames, consisting of a C-rail hinged to the mattress frame by means of a fastening piece with a locking toothing, and a carrier hinged to the pivotable frame part by means of a fastening piece , a swivel joint for connecting the end of the girder to the joint end of the C-rail and a toothed strut articulated on the girder, the latching end of which projects through a longitudinal opening in the C-rail onto the latching toothing and is combined with an arrangement for latching-free return to its starting position.
  • a backrest or headrest adjustment device for sitting and lying birds or the like has become known. consisting of an articulated pair of levers, the angular position of which can be changed by a support lever engaging in a toothing, devices being provided which bring about a free, non-invasive decline of the support lever from the highest position to the initial position.
  • the support lever is tooth-like. When the adjustable part is folded up, it falls into the teeth of the lower lever of the pair of levers due to its own weight.
  • the lower lever is box-shaped in this adjustment device and has, on the side facing the adjustable part, a longitudinal opening in which the support lever is guided and through which its support end engages with a ratchet tooth with the toothing in the lever.
  • This known backrest and headrest adjustment device has disadvantages.
  • the teeth of the toothing of the box-shaped lever which come into engagement with the locking tooth of the support lever in each detent position, can only bear a small load. With continuous use, there is a risk that the latching ability of the ratchet tooth and toothing will wear out and, for example, no longer remain in engagement in the case of shock loads.
  • the upper lever of the adjusting device is only a simple sheet metal strip which is articulated to the lower box-shaped lever. It has further been found that in this known actuating device, the device which causes the non-invasive decline of the support lever from the highest position to the initial position is susceptible to failure.
  • an adjusting device for head and foot part brackets on reclining furniture which is attached in a known manner to the frame and to the head or foot part brackets. It consists essentially of a guide bar, which is box-shaped and provided with a longitudinal opening, a locking strut, which is articulated on an adjusting lever and a runner with a profile window that serves to guide the locking end of the strut. This locking end is provided with a strut nose which engages in the adjusting holes in the guide bar (DE-GM 69 24 799).
  • the present invention has for its object to provide a head or foot plate for particularly high loads with good lateral stability, which is easy to manufacture and the individual parts can be used equally well for different embodiments.
  • the heavy-duty locking teeth can be found in claims 2 to 6. It is essential that the locking teeth of the C-rail include locking surfaces arranged in parallel and that the locking teeth of the toothed strut are provided with corresponding locking surfaces, such that the locking surfaces of the locking teeth and the locking surfaces of the locking teeth in engagement with each other rest in each step locking with the highest load.
  • the measures that must be taken in individual cases with the head or foot actuators according to the invention in order to achieve this depend on the pivoting radius of the locking joint by which the toothed strut is connected to the carrier.
  • the lateral stability of the head or foot plate is achieved with a lightly designed frame in that the carrier consists of two side struts of a Y-beam, the lower ends of which are articulated to the C-rail and articulated on the swivel joint and the front of which The ends - between the locking joint and the fastening piece - diverge.
  • This divergence depends on which side stability is to be achieved. It is particularly advantageous that this design of the support, but also a simpler design, can be combined with the same C-rail. For both of the exemplary embodiments shown, the C-rail and toothed strut can be used unchanged.
  • Fastening pieces with fastening plates and fastening brackets are provided for fastening the head or foot plate to the frame parts, which can be connected by pins to the associated pivot openings of the carrier or C-rail.
  • a particularly simple manufacture results if pivot pins are pressed out or pulled out of the fastening angles.
  • This design allows a detachable connection between the fasteners and the carriers or the C-rails.
  • pivot pins can also be expressed from the front ends of the C-rails and supports be that can be flexibly and flexibly connected to the mounting brackets or the pivot holes contained therein.
  • FIG. 1 shows a head or foot switch, generally designated 1, whose support 22, 24, 25 is articulated, for example, to a pivotable frame part 3 and its so-called C-rail 15 on the mattress frame 4.
  • the C-rail 15 and the beams 22, 24, 25 are connected to one another in an articulated manner by means of a swivel joint 26.
  • a toothed strut 29 is articulated by means of a latching joint 43, the latching end 30 (FIGS. 2 and 3) of which extends through a longitudinal opening 18 in the C-rail 15 and each step latching 2 with a latching toothing 17 on the bottom of the C-rail 15 is engaged.
  • the parts of the brackets 22, 24, 25 and the C-rail 15 connected to the swivel joint 26 are referred to as joint ends 23 and 16, respectively.
  • the latching end 30 of the toothed strut 29 has latching teeth 31, 32, 33 and 34, of which - especially in the lower step latches 2 - at least two are in engagement with the latching teeth 17.
  • each locking tooth 31 to 34 has a locking surface 35 and a tip 36. These tips 36 are arranged so that two adjacent tips 36 each in a functional level 37 of the first two locking teeth 31 and 32 is in the first step lock 2 corresponding to the locking point A 1 parallel to the level 21 of the locking teeth 17 in the C-rail 15.
  • Die Functional levels 38 and 39 of the second and third or third and fourth locking teeth 32, 33, 34 increase in this first step locking relative to the plane 21 of the locking teeth 17.
  • the locking teeth 17 of the C-rail 15th consists of parallel locking surfaces 20 which are arranged obliquely to a plane 21.
  • the latching surfaces 35 of the latching teeth 31 to 34 involved now lie in each high-loaded step latch 2 in synchronism with the latching surfaces 20 of the latch teeth 17. Since the latching surfaces 20 and 35 abut one another in the step latches, the specific surface pressure becomes low. In this way, the head or foot switch 1 according to the invention is able to absorb loads that are much higher than the previously known designs of this magnitude.
  • the C-rail 15 has ten latching surfaces 20, whereas the latching end 30 of the toothed strut 29 is provided with four latching surfaces 35.
  • the locking joint 43 describes a circular arc with the swivel radius 45 and the swivel joint 26.
  • the essential step detents 2 are the locking points on the circular arc of the locking joint 43 and with A1, A2, A3 and A4 designated. Depending on these locking points A1 to A4, the relative positions of the locking end 30 of the toothed strut 29 to the locking teeth 17 of the C-rail 15 are shown in FIGS. 3b-e.
  • Fig. 3c shows the relative position of locking teeth 17 and locking end 30 in the locking point A2.
  • the locking surfaces 35 of the locking teeth 32 and 33 rest against the locking surfaces 20 of the locking teeth 17.
  • the functional level 38 runs parallel to the level 21 of the locking teeth 17.
  • Fig. 3d shows the relative position of locking teeth 17 and locking end 3 in the locking point A3, in which the locking surfaces 35 of the locking teeth 33 and 34 abut against the locking surfaces 20 of the locking teeth 17.
  • the functional level 39 runs parallel to the level 21 of the locking teeth 17.
  • the carrier is formed in two parts. It consists of the two side struts 24, 25 of a Y-beam, which run parallel to the C-rail 15 between the swivel joint 26 and the locking joint 43. Their joint ends 16 to 23 are connected to the C-rail 15 by means of the swivel joint 26.
  • Fig. 5 shows this training in plan view.
  • Fig. 6 shows a partial sectional view along the line VI / VI in Fig. 4 and clearly shows the diverging front ends of the side struts 24 and 25 of the Y-beam. 6 also shows the box-shaped structure of the C-rail 15, through whose longitudinal opening 18 the toothed strut 29 projects. This is articulated in a manner explained later by means of the locking joint 43 with the side struts 24 and 25 of the Y-beam. A reversing slide 19 can be seen to the left of the latching end 30 of the toothed strut 29, which is shown in a side view in FIG. 2a.
  • FIG. 7 and 7a show a second embodiment of the invention with the same C-rail 15.
  • the locking teeth 17 and the plane of the locking teeth 21 are only indicated schematically.
  • a U-shaped support 22 is articulated by means of the swivel joint 26 and, as can be seen in cross section in FIG. 7a, has a U-shaped cross section 28.
  • the support lever 22 In the idle state of the head or foot switch, which is shown in FIG. 7a, the support lever 22 encloses the locking rail 15.
  • the locking strut 29 articulated in the locking joint 43 by means of the articulated pin 42 is only shown schematically as a line.
  • pivot pins 10 can be driven out of the mounting brackets 9.
  • the pivot openings 27 at the front ends of the side struts 24 and 25 can be inserted loosely on the pivot pin 10 from the inside according to FIG. 8. However, as can be seen in FIG. 8a, they can also be riveted together. Without changing anything at the core of the invention, the pivot pins 10 can, however, also be expressed or driven out of the front ends of the side struts 24 or 25 of the Y-beam.
  • the pivot openings 27 would then be provided in the mounting brackets 9.
  • a corresponding type of fastening can also be provided between the fastening pieces 6 with their fastening plates 8 and the corresponding parts of the head or foot plate 1.
  • FIG. 10 Further fastening options are shown schematically in FIG. 10. It is thus possible to carry out the fastening by means of a spring clip 11, in which pivot openings 46 are provided which sit on the pivot pin 10. These can - as indicated - from the C-rail 15, but also from the side struts 24 and 25 of the Y-beam.
  • pivot openings 46 can be inserted over the ends of the pin 14 which protrude outwards.
  • a spring clip 12 also has pivot openings 46 which can be plugged onto protruding ends of the pin 14 or onto the pivot pin 10.
  • a further fastening possibility results from a spring clip 13, the pivot openings 46 of which are plugged onto the inwardly directed pivot pin 10.
  • the advantage of the spring clips 11 to 13 shown in FIG. 10 is that the fastening pieces 5, 6 can only be inserted or hung in place during assembly.
  • FIG. 9 A further simplification of the design of the head or foot switch 1 according to the invention is shown in FIG. 9.
  • the locking joint 43 is shown there in the manner of an exploded drawing in the non-assembled state.
  • a bore 44 is arranged in the toothed strut 29, into which a sleeve 40 is inserted, the ends 41 of which, in the assembled state, bear against the inner sides of the side struts 24 and 25 of the Y-beam.
  • a connecting rivet 42 is inserted through the openings in these side struts 24, 25 and the sleeve 40 and secured in the inserted state against lateral displacement.
  • a particularly secure design of the locking joint 43 is obtained when the ends 41 of the sleeve 40 are compressed so that it is firmly connected to the toothed strut 29.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Ladders (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Seats For Vehicles (AREA)
EP88107566A 1987-05-19 1988-05-11 Dispositif de positionnement avec plusieurs pas pour un support de tête ou de pied Expired - Lifetime EP0291840B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107566T ATE75116T1 (de) 1987-05-19 1988-05-11 Kopf- oder fusssteller mit mehreren stufenrastungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873716714 DE3716714A1 (de) 1987-05-19 1987-05-19 Kopf- oder fusssteller mit mehreren stufenrastungen
DE3716714 1987-05-19

Publications (2)

Publication Number Publication Date
EP0291840A1 true EP0291840A1 (fr) 1988-11-23
EP0291840B1 EP0291840B1 (fr) 1992-04-22

Family

ID=6327856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107566A Expired - Lifetime EP0291840B1 (fr) 1987-05-19 1988-05-11 Dispositif de positionnement avec plusieurs pas pour un support de tête ou de pied

Country Status (6)

Country Link
EP (1) EP0291840B1 (fr)
AT (1) ATE75116T1 (fr)
DD (1) DD270003A5 (fr)
DE (1) DE3716714A1 (fr)
ES (1) ES2031951T3 (fr)
WO (1) WO1988009139A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394733A1 (fr) * 1989-04-26 1990-10-31 Lanz Industrie-Technik Ag Dispositif de positionnement pour un support de tête ou de pied
EP0492194A1 (fr) * 1990-12-22 1992-07-01 Franke GmbH & Co. KG Ferrure d'articulation pour meubles
EP0538577A1 (fr) * 1991-10-24 1993-04-28 RK MULTI TEC GmbH & Co. KG Dispositif pour régler une partie inclinable d'un cadre de lit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8261382B2 (en) * 2010-01-07 2012-09-11 Lifestyle Solutions, Inc. Providing varying degrees of elevation to moveable head-rest and back-support sections of bed frame

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE585000C (de) * 1931-07-03 1933-09-27 Schiffers & Co H Lehnen- oder Kopfteilstellvorrichtung fuer Sitz- und Liegemoebel o. dgl.
DE1145323B (de) * 1958-12-02 1963-03-14 Hermann Kolckhorst In eine Liege umwandelbares Sitzmoebel
DE2216934A1 (de) * 1971-06-14 1972-12-21 Lanz Ag Hermann Stutzsteller
FR2143502A1 (fr) * 1971-06-25 1973-02-02 Kettler Fa Heinz

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1961662U (de) * 1967-01-31 1967-06-08 Bremshey & Co Moebelstueck, insbesondere liegemoebel.
DE6924799U (de) * 1969-06-21 1970-01-02 Giehl & Co Draht Und Metallwar Stellvorrichtung fuer kopf- und fussteilbuegel an liegemoebeln.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE585000C (de) * 1931-07-03 1933-09-27 Schiffers & Co H Lehnen- oder Kopfteilstellvorrichtung fuer Sitz- und Liegemoebel o. dgl.
DE1145323B (de) * 1958-12-02 1963-03-14 Hermann Kolckhorst In eine Liege umwandelbares Sitzmoebel
DE2216934A1 (de) * 1971-06-14 1972-12-21 Lanz Ag Hermann Stutzsteller
FR2143502A1 (fr) * 1971-06-25 1973-02-02 Kettler Fa Heinz

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394733A1 (fr) * 1989-04-26 1990-10-31 Lanz Industrie-Technik Ag Dispositif de positionnement pour un support de tête ou de pied
EP0492194A1 (fr) * 1990-12-22 1992-07-01 Franke GmbH & Co. KG Ferrure d'articulation pour meubles
EP0538577A1 (fr) * 1991-10-24 1993-04-28 RK MULTI TEC GmbH & Co. KG Dispositif pour régler une partie inclinable d'un cadre de lit

Also Published As

Publication number Publication date
DE3716714A1 (de) 1988-12-01
WO1988009139A1 (fr) 1988-12-01
ES2031951T3 (es) 1993-01-01
ATE75116T1 (de) 1992-05-15
DE3716714C2 (fr) 1990-10-04
DD270003A5 (de) 1989-07-19
EP0291840B1 (fr) 1992-04-22

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