EP0364394A2 - Lit permettant d'ajuster le support des jambes d'une personne - Google Patents

Lit permettant d'ajuster le support des jambes d'une personne Download PDF

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Publication number
EP0364394A2
EP0364394A2 EP89810016A EP89810016A EP0364394A2 EP 0364394 A2 EP0364394 A2 EP 0364394A2 EP 89810016 A EP89810016 A EP 89810016A EP 89810016 A EP89810016 A EP 89810016A EP 0364394 A2 EP0364394 A2 EP 0364394A2
Authority
EP
European Patent Office
Prior art keywords
support part
lifting means
bed
coupling
lifting
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Withdrawn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
EP89810016A
Other languages
German (de)
English (en)
Other versions
EP0364394A3 (fr
Inventor
Friedrich Bierhoff
Andreas Stübe
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.)
Recticel Automobilsysteme GmbH
Original Assignee
Matra 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 Matra AG filed Critical Matra AG
Publication of EP0364394A2 publication Critical patent/EP0364394A2/fr
Publication of EP0364394A3 publication Critical patent/EP0364394A3/fr
Withdrawn legal-status Critical Current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
    • A47C20/08—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
    • 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

Definitions

  • the present invention relates to a bed according to the preamble of claim 1.
  • beds with multiple adjustment options have been available on the market for a long time.
  • beds are known in which both the back part and the leg part are arranged to be adjustable.
  • beds are known in which the adjustable back part has a short adjustable head part and the adjustable leg part comprises a thigh support part and an articulated lower leg support part connected thereto.
  • the two support parts are forcibly coupled to one another.
  • Such beds corresponding to the prior art are usually constructed as an insert frame and are intended for inserting into a bed.
  • the various parts of such beds mentioned can be adjusted either manually, possibly using the weight of a person lying on the bed, by motor, or as a combination manually and motor-driven.
  • Beds with motor-driven adjustment parts are known to this day with one, two or three motors.
  • both the back and the leg part which in turn can consist of a thigh support part and a coupled lower leg support part, can be adjusted with the motor.
  • the so-called knee is created between the two hinged support parts when raised kink.
  • a first motor is usually used for the back part adjustment and the second motor is provided for an independent leg part adjustment, the thigh support part and the lower leg support part being coupled to one another, as already mentioned above.
  • a third motor has recently been used to adjust the short head part arranged in the back part, also driven by a motor.
  • the leg part comprises a thigh support part and an articulated lower leg support part
  • the two support parts are coupled to one another via a parallelogram linkage, regardless of whether they are motor-driven or not, and follow a forcibly prescribed path when adjusting.
  • the construction is often designed such that when the leg part is adjusted, the lower leg support part moves up or down, essentially remaining in a horizontal position.
  • FIG. 1 to 4 each show a side view of the bed according to the invention to clearly explain the different positions that can be reached when lifting a leg part 4.
  • the adjustable leg part 4 is connected via first pivoting means 2 to a likewise adjustable back part 7, which is not further described.
  • the leg part 4 is divided into a thigh support part 5 and a lower leg support part 6.
  • the latter connects to the thigh support part 5 and is thus pivotably connected via second pivoting means 3.
  • second pivoting means 3 Starting from an essentially horizontal position of the leg part 4, which is shown in dash-dotted lines in FIG. 1, the latter can be raised, forming an inclined plane pointing obliquely upwards, without the second pivoting means 3 forming a knee bend.
  • position a is absolutely ideal, especially for side sleepers.
  • FIG. 2 shows another leg elevation b, often referred to as the normal position.
  • the thigh support part 6 adjoins the thigh support part 5 in an essentially horizontal position.
  • the second pivoting means 3 form a slight knee crease.
  • This position b of the elevated leg position is particularly desirable when lying on the back and is also achieved by competitive products according to the prior art.
  • 3 shows a further leg elevation option, referred to as position c.
  • the thigh support part 5 of the leg part 4 when pivoted about the first pivot means 2, points relatively strongly upwards, while the adjoining lower leg support part 6, pivoted about the second pivot means 3, points obliquely downward.
  • the heels one in this position c the person lying on the bed is positioned lower than the knees.
  • This lying position relaxes the tendons in the knee joint and thereby conveys an increased and improved feeling of comfort.
  • Such a position which is usually assumed with the back part 7 raised at the same time, serves primarily for relaxation.
  • a fourth setting of the leg part 4 which can be achieved with the bed according to the invention is shown in FIG. 4 as the setting position d.
  • Both support parts 5, 6 point obliquely upwards, the inclined position of the lower leg support part 6 being smaller than that of the thigh support part 5.
  • the second pivoting means 3 form a slight knee crease.
  • This position d is referred to as a medical setting because the heels of a person lying on the bed are positioned higher than the knees in order to relieve the blood circulation in the legs.
  • FIGS. 1 to 4 show a first embodiment of a lifting arrangement for lifting the leg part 4 of the bed according to the invention.
  • 5 shows a partial side view
  • FIG. 6 shows a partial top view of the lifting arrangement.
  • First and second lifting means designated 10 and 11 are fork-shaped and are therefore referred to below as first lifting fork 10 and second lifting fork 11.
  • the first lifting fork 10 is rotatably mounted in the bed frame 1 and serves to lift and support the thigh support part 5 of the leg part 4.
  • the first lifting fork 10 comprises a base shaft 19 running transversely to the bed frame 1 stood the leg part 4 in the longitudinal direction of the bed frame frame 1 extending first leg 22 with the first base shaft 19 non-detachably connected.
  • a first roller 23 is rotatably mounted on the ends of each of the first legs 22 facing away from the base shaft 19. When the first lifting fork 10 is pivoted up, the rollers 23 engage in a guide rail 28 which is U-shaped in cross-section and is arranged on the underside in the lateral region of the thigh support part 5 and brings about lifting, supporting or lowering the thigh support part 5.
  • the lower leg support part 6 is raised and supported with the second lifting fork 11.
  • a second base shaft 21 likewise runs in the transverse direction to the bed frame 1 and is also rotatably mounted therein.
  • the lower leg support part 6 is provided on its underside in the lateral areas with a support rail 29 running in the longitudinal direction of the bed, which rests on the corresponding second roller 25 when the second lifting fork 11 is pivoted upwards, and causes the lower leg support part 6 to be lifted or supported.
  • the support rail 29 preferably has an L-shaped cross section.
  • the two lifting forks 10, 11 are mechanically coupled to one another via coupling means 12, 13, 14, 15 and 16.
  • a first gear wheel 12 is arranged in the region of each of the ends of the first base shaft 19. Each of these first gear wheels 12 is in engagement with a second gear wheel 13, which are mounted on a shaft 20.
  • the shaft 20 runs parallel to it Most basic shaft 19 and is also rotatably mounted in the bed frame 1.
  • On the shaft 20, a first coupling lever 14 is arranged protruding at right angles.
  • a second coupling lever 15 is arranged in the same way on the second base shaft 21.
  • a connecting link 16 is articulated with its two ends to the ends of the two coupling levers 14, 15 facing away from the shafts 20, 21 mentioned.
  • a flange 27 for attaching a drive means 17 is provided on a cross-piece 26 which runs in the area of the first lifting fork 10 and runs transversely to the bed frame 1 and is connected to it.
  • the latter advantageously consists of a linear motor, one end of which is pivotally connected to the flange 27 mentioned and the linearly movable rod 30 is articulated to one end of a drive lever 18. The other end of the latter is connected to the second base shaft 21 at a right angle. Starting from a substantially horizontal position of the leg part 4, the leg part 4 is raised by extending the linearly movable rod 30 from the linear motor 17.
  • the second pivoting means 3 are designed such that the lower leg support part 6 can only be lowered compared to the upper leg support part 5, but cannot be raised. As a result, the leg part 4 is raised in a first phase in accordance with the position a described above.
  • the special feature of this mechanical coupling according to the invention is that the two lifting forks are opposed to each other nig turn.
  • the selected gear ratio of the two gear wheels 12, 13 and the legs 22, 24 of the two lifting forks 10, 11 of different lengths ensures that after the engagement of the second rollers 23 in the guide rails 28, the thigh support part 5 is lifted faster than the lower leg support part 6 .
  • the previously described positions b and c are achieved.
  • the now relatively steep position of the second leg 24 of the second lifting fork 11 increases the lower leg support part 6, which leads to the aforementioned medical adjustment of the Leg part 4 leads.
  • the positions a, b, c and d described are achieved in succession when lifting the leg part in a bed with the lifting device just described, and this despite the presence of only a single drive means 17.
  • FIG. 7 shows a further embodiment of the bed according to the invention.
  • a drive means 17, 17 ' is provided for the thigh support part 5 and for the lower leg support part 6.
  • the drive means 17, 17 ' are also preferably designed as a linear motor.
  • FIG. 8 shows a third embodiment variant of a lifting arrangement for the adjustable elevation of the legs of a person lying on the bed.
  • the linear motor 17 'for lifting, supporting and lowering the thigh support part 5 corresponds essentially to that of Fig. 7.
  • the lower leg support part 6, which is pivotably mounted on the thigh support part 5 via the second pivoting means 3, is adjusted with a linear motor 32 acting on the two support parts 5, 6. This is at one end on one on the underside of the thigh support part 5 arranged first tab 33 articulated.
  • the linearly movable rod 35 of the linear motor 32 is articulated to a second bracket 34 attached to the underside of the lower leg support part 6.
  • This embodiment also allows the thigh support part 5 and the lower leg support part 6 to be adjusted independently of one another.
  • FIGS. 9 and 10 illustrate a fourth embodiment of a lifting arrangement for lifting the leg part of the bed according to the invention which is extremely simple in its construction.
  • a movement sequence of the leg part 4 with its lower leg support part 6 and its thigh support part 5 can be achieved, as has been described above with reference to FIGS. 1 to 4 in general and with reference to FIGS. 5 and 6 in a first exemplary embodiment.
  • the movement sequence in detail should therefore not be discussed again here.
  • the same reference numerals have been used in FIGS. 9 and 10 as in FIGS. 5 and 6. An essential difference of this fourth embodiment from that which is disclosed in FIGS.
  • the pivoting movement of the driven second lifting fork 11 is by means of a first coupling lever 40, which is arranged radially protruding centrally on the base shaft 21 of this lifting fork, on a pair of connecting rods 41, each with its one end 44 via a second pivot axis 53 on that of the base shaft 21 protruding end of the first coupling lever 40 are articulated on both sides, transmitted indirectly to the first lifting fork 10.
  • the aforementioned connection point or the first pivot axis 52 is in engagement with a guide device 46, so that when the leg part 4 is raised or lowered, the first pivot axis 52 can be displaced along the guide device 46.
  • This guide advantageously exists device 46 from a flange 47 with a guide cut-out 48. The latter is traversed by the first pivot axis 52 and, by its shape, essentially determines the movement sequence of the leg part 4 when lifting or lowering.
  • a guide roller 51 is arranged centrally on the first pivot axis 52, which rolls when the said connection point of the connecting rods 41 with the second coupling levers 42 is moved along the guide cutout 48 on its peripheral surfaces.
  • the flange 47 has two notches 49, 50.
  • the second notch 50 is designed in accordance with the cross section of the cross member 26 and is intended to weld the flange 47 to the cross member 26, for example.
  • the first notch 49 is designed such that the flange 47 partially encompasses the base shaft 19 and is supported by it against forces acting from above.
  • the shape of the guide cutout essentially determines the sequence of movements of the two support parts 5 and 6 when the leg part 4 is raised or lowered.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP89810016A 1988-10-12 1989-01-10 Lit permettant d'ajuster le support des jambes d'une personne Withdrawn EP0364394A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH381488 1988-10-12
CH3814/88 1988-10-12

Publications (2)

Publication Number Publication Date
EP0364394A2 true EP0364394A2 (fr) 1990-04-18
EP0364394A3 EP0364394A3 (fr) 1990-08-16

Family

ID=4264041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810016A Withdrawn EP0364394A3 (fr) 1988-10-12 1989-01-10 Lit permettant d'ajuster le support des jambes d'une personne

Country Status (1)

Country Link
EP (1) EP0364394A3 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670374A1 (fr) * 1990-12-14 1992-06-19 Meral Soc Nouv Mecanisme de relevage pour sommier articule.
EP0604240A1 (fr) * 1992-12-25 1994-06-29 Paramount Bed Company Limited Embase de lit
DE9311519U1 (de) * 1993-01-18 1994-12-01 Hartmann Siegbert Verstelleinrichtung für den Fußendbereich eines Bettrahmens
EP0641534A2 (fr) * 1993-09-08 1995-03-08 Paramount Bed Company Limited Sommier de lit
AT401604B (de) * 1995-01-11 1996-10-25 Optimo Holz Und Drahtbearbeitu Betteinsatz
DE19951311A1 (de) * 1999-10-25 2001-05-03 Wilke Hans Joachim Liegevorrichtung
WO2001091689A1 (fr) * 2000-05-27 2001-12-06 Huntleigh Technology Plc Plate-forme reglable pour lit
CN106333830A (zh) * 2016-09-20 2017-01-18 合肥工业大学 一种下肢康复机器人助行机构
CN107951264A (zh) * 2017-12-22 2018-04-24 太仓市康辉科技发展有限公司 一种可升降床头板的结构
EP3400840A1 (fr) * 2017-05-11 2018-11-14 Hettich Franke GmbH & Co. KG Sommier
US10492968B2 (en) 2016-03-31 2019-12-03 Stryker Corporation Patient support apparatus with adjustable foot section
US10736803B2 (en) 2016-02-26 2020-08-11 Stryker Corporation Lift assembly for patient support apparatus
US10987260B2 (en) 2017-04-21 2021-04-27 Stryker Corporation Patient handling apparatus with hydraulic control system
US10987268B2 (en) 2017-04-21 2021-04-27 Stryker Corporation Emergency cot with a litter height adjustment mechanism
CN113143632A (zh) * 2021-06-15 2021-07-23 宁波欣雷医疗设备有限公司 一种具有侧翻功能的护理床
CN114176952A (zh) * 2021-11-17 2022-03-15 中国人民解放军总医院第六医学中心 一种野战伤员护理用治疗架
US11583455B2 (en) 2019-10-28 2023-02-21 Stryker Corporation Hydraulic valve and system
US11730650B2 (en) 2019-12-30 2023-08-22 Stryker Corporation Patient support apparatus with hydraulic oscillation dampening

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH149563A (de) * 1930-02-27 1931-09-15 Fischer Beurer Theodor Verstellbares Krankenbett.
DE1174463B (de) * 1958-06-02 1964-07-23 Us Bedding Company Bettgestell mit mehrteiligem einstellbarem Matratzentraeger
CH421382A (de) * 1965-04-23 1966-09-30 Altorfer Hans Bettgestell
DE1529431A1 (de) * 1965-11-03 1969-12-18 Berg Fa Wilh Verstelleinrichtung fuer Rueckenlehne und Beinstueze,insbesondere von Stahldrahtmatratzen
FR2351629A1 (fr) * 1976-05-21 1977-12-16 Hanning Elektro Werke Appareil de reglage electromecanique destine a des sommiers de lit
FR2555426A1 (fr) * 1983-11-29 1985-05-31 Newave Sommier articule perfectionne

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH149563A (de) * 1930-02-27 1931-09-15 Fischer Beurer Theodor Verstellbares Krankenbett.
DE1174463B (de) * 1958-06-02 1964-07-23 Us Bedding Company Bettgestell mit mehrteiligem einstellbarem Matratzentraeger
CH421382A (de) * 1965-04-23 1966-09-30 Altorfer Hans Bettgestell
DE1529431A1 (de) * 1965-11-03 1969-12-18 Berg Fa Wilh Verstelleinrichtung fuer Rueckenlehne und Beinstueze,insbesondere von Stahldrahtmatratzen
FR2351629A1 (fr) * 1976-05-21 1977-12-16 Hanning Elektro Werke Appareil de reglage electromecanique destine a des sommiers de lit
FR2555426A1 (fr) * 1983-11-29 1985-05-31 Newave Sommier articule perfectionne

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670374A1 (fr) * 1990-12-14 1992-06-19 Meral Soc Nouv Mecanisme de relevage pour sommier articule.
EP0604240A1 (fr) * 1992-12-25 1994-06-29 Paramount Bed Company Limited Embase de lit
AT244U1 (de) * 1993-01-18 1995-06-26 Hartmann Siegbert Hartmann Sie Verstelleinrichtung fuer den fussendbereich eines bettrahmens
DE9311519U1 (de) * 1993-01-18 1994-12-01 Hartmann Siegbert Verstelleinrichtung für den Fußendbereich eines Bettrahmens
EP0641534A2 (fr) * 1993-09-08 1995-03-08 Paramount Bed Company Limited Sommier de lit
EP0641534A3 (fr) * 1993-09-08 1996-04-17 Paramount Bed Kk Sommier de lit.
AT401604B (de) * 1995-01-11 1996-10-25 Optimo Holz Und Drahtbearbeitu Betteinsatz
DE19951311A1 (de) * 1999-10-25 2001-05-03 Wilke Hans Joachim Liegevorrichtung
US6986180B1 (en) 1999-10-25 2006-01-17 Hans Joachim Wilke Bed
WO2001091689A1 (fr) * 2000-05-27 2001-12-06 Huntleigh Technology Plc Plate-forme reglable pour lit
US11723825B2 (en) 2016-02-26 2023-08-15 Stryker Corporation Lift assembly for patient support apparatus
US11116683B2 (en) 2016-02-26 2021-09-14 Stryker Corporation Lift assembly for patient support apparatus
US10736803B2 (en) 2016-02-26 2020-08-11 Stryker Corporation Lift assembly for patient support apparatus
US10492968B2 (en) 2016-03-31 2019-12-03 Stryker Corporation Patient support apparatus with adjustable foot section
CN106333830A (zh) * 2016-09-20 2017-01-18 合肥工业大学 一种下肢康复机器人助行机构
US11666494B2 (en) 2017-04-21 2023-06-06 Stryker Corporation Patient handling apparatus with hydraulic control system
US10987260B2 (en) 2017-04-21 2021-04-27 Stryker Corporation Patient handling apparatus with hydraulic control system
US10987268B2 (en) 2017-04-21 2021-04-27 Stryker Corporation Emergency cot with a litter height adjustment mechanism
EP3400840A1 (fr) * 2017-05-11 2018-11-14 Hettich Franke GmbH & Co. KG Sommier
CN108851746A (zh) * 2017-05-11 2018-11-23 海蒂诗弗兰克有限及两合公司 床底板
CN107951264A (zh) * 2017-12-22 2018-04-24 太仓市康辉科技发展有限公司 一种可升降床头板的结构
US11583455B2 (en) 2019-10-28 2023-02-21 Stryker Corporation Hydraulic valve and system
US11865051B2 (en) 2019-10-28 2024-01-09 Stryker Corporation Hydraulic valve and system
US11730650B2 (en) 2019-12-30 2023-08-22 Stryker Corporation Patient support apparatus with hydraulic oscillation dampening
CN113143632A (zh) * 2021-06-15 2021-07-23 宁波欣雷医疗设备有限公司 一种具有侧翻功能的护理床
CN113143632B (zh) * 2021-06-15 2022-08-26 宁波欣雷医疗设备有限公司 一种具有侧翻功能的护理床
CN114176952A (zh) * 2021-11-17 2022-03-15 中国人民解放军总医院第六医学中心 一种野战伤员护理用治疗架

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Publication number Publication date
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