US3750200A - Bed setting drive with low-pressure hydraulic system - Google Patents

Bed setting drive with low-pressure hydraulic system Download PDF

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Publication number
US3750200A
US3750200A US00245081A US3750200DA US3750200A US 3750200 A US3750200 A US 3750200A US 00245081 A US00245081 A US 00245081A US 3750200D A US3750200D A US 3750200DA US 3750200 A US3750200 A US 3750200A
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US
United States
Prior art keywords
bed
hose
setting drive
inflate
elongated
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.)
Expired - Lifetime
Application number
US00245081A
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English (en)
Inventor
G Hirmann
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.)
Veenendaal & Co
VEENENDAAL CO CH
Original Assignee
Veenendaal & Co
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 Veenendaal & Co filed Critical Veenendaal & Co
Application granted granted Critical
Publication of US3750200A publication Critical patent/US3750200A/en
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
    • A47C20/048—Head -, foot -, or like rests for beds, sofas or the like with adjustable inclination by fluid means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position

Definitions

  • the object of the present invention is to provide a setting drive which operates with very low hydraulic operating pressure and which can therefore be operated by an electro-hydraulic low-pressure pump or by the water supply system direct.
  • FIG. 1 shows an embodiment comprising a bed with two new-type position setting drives incorporated
  • FIG. 3 shows a force generator
  • FIG. 4 shows an arrangement for operating the setting drive from the water supply system
  • FIG. 5 shows an electro-hydraulic operation system for the setting drives.
  • FIG. 1 Bed with two new-type position setting drives incorporated
  • a bedstead 1 is provided with two main pivot assemblies 2 and 7.
  • the main pivot assembly 2 supports a pivoting part 3 provided with a U-shaped tube 4. This tube presses against a piece of hose 5 which serves as the force generator, and which is provided with closing covers and whose inside is filled with a pressure medium.
  • the piece of hose 5 is supported by a channel 6 fixed to the bedstead l.
  • the other main pivot assembly 7 supports a pivoting part 8, as used for resting the feet in a raised position, for instance; and connected to the free end of the pivoting part 8 by a joint 9 is another pivoting part 10 which is guided parallel to the bedstead by a link 11 movably joined to the pivots l2 and 13.
  • the two pivoting parts 8 and 10 are operated by a U-shaped tube 14 connected to the pivoting part 8 and by a piece of hose 15 serving as the force generator.
  • the latter filled with liquid, is supported by a channel 16 fixed to the bedstead.
  • the pressure medium e.g. water
  • FIG. 2 Position Setting Drive Shown in Perspective This figure shows the essential functional parts, namely the hose supporting channel w, the inflatable through a line 23.
  • the hose is cylindrical and has a large diameter when inflated.
  • FIG.3 Hose Element This figure shows a hose element comprising a hose 24, an outlet closing end cap or cover 25, an inlet connection or endcap 26, clamps 27 and 28 to control inlet and outlet, and a supply line 29.
  • FIG. 4 Operation of Position Setting Drives from Water Supply This type of operation is extremely simple, costsaving and safe.
  • the figure shows components of the hydraulic assembly of a dual setting drive.
  • a first hose element serving as a force generator is connected by a hydraulic line 31 to a valve group, which in this case consists of two manually controlled non-return valves 32, 34; the valve 32 when open admits the water flowing from a pressure line 33, while the valve 34 when open permits the water from the hose element to flow into the outgoing line 35.
  • Control of the other position setting drive is effected analogously.
  • FIG. 5 Electro-hydraulic Operation of Position Setting Drives This type of operation again uses water, but the con- 'struction is such as to prevent any loss of water.
  • FIG. 5 The components shown in FIG. 5 are a bag 36, a pump 37, a dynamically controlled change-over valve 36, a manually operated differential valve 39, the hose element 40 of the setting drive, a differential valve 41 and a hose element 42.
  • Raising of the pivoting part is effected by starting the pump 37 and at the same time actuating the valve 39, e.g. by pressing the differential piston 43 in the direction 44, so that the valve disk 45 clears the access to the hose element 40.
  • Lowering is effected by actuating the valve 39, e.g. by pressing the differential piston 43, but without starting the pump 37.
  • the dynamically controlled change-over valve 38 consists of a piston 46 with a coaxial through-bore whose cross-section is reduced with respect to the line 47, and a compression spring 43.
  • a device for hydraulically setting the position of a bed using low fluid pressure comprising at least one elongated, radially inflatable hose having a large hydraulically active surface
  • pivot assembly means for positioning the bed in response to the inflation of said hose, said pivot assembly means including an element forming a concave deformation in the surface of said hose, through which movement of the surface of said hose is transferred to the bed, and
  • Bed-setting drive according to claim i wherein said element of said pivot assembly means comprises a U-shaped tube the top of which is connected to a'pivoting part of said assembly means and the base of which forms said concave deformation in the surface of said hose.
  • a device in accordance with claim 1 comprising two said inflatable hoses for controlling the positioning of two separate portions of the bed.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Actuator (AREA)
  • Massaging Devices (AREA)
US00245081A 1971-04-19 1972-04-18 Bed setting drive with low-pressure hydraulic system Expired - Lifetime US3750200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH541571A CH538859A (de) 1971-04-19 1971-04-19 Stellantriebsanordnung an einem einen Klappteil aufweisenden Bettgestell

Publications (1)

Publication Number Publication Date
US3750200A true US3750200A (en) 1973-08-07

Family

ID=4293192

Family Applications (1)

Application Number Title Priority Date Filing Date
US00245081A Expired - Lifetime US3750200A (en) 1971-04-19 1972-04-18 Bed setting drive with low-pressure hydraulic system

Country Status (15)

Country Link
US (1) US3750200A (it)
JP (1) JPS5423636B1 (it)
AT (1) AT318799B (it)
BE (1) BE782277A (it)
BR (1) BR7202323D0 (it)
CA (1) CA951226A (it)
CH (1) CH538859A (it)
DK (1) DK135265B (it)
ES (1) ES401923A1 (it)
FR (1) FR2136526A5 (it)
GB (1) GB1356359A (it)
IT (1) IT959504B (it)
NL (1) NL7205125A (it)
SE (1) SE379271B (it)
ZA (1) ZA722654B (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879772A (en) * 1973-01-30 1975-04-29 Provencale De Fabrications Med Hospital bed
US3978530A (en) * 1975-11-21 1976-09-07 Amarantos John G Air inflatable bed-like device with adjustable back support
US4127906A (en) * 1976-07-15 1978-12-05 Zur Henry C Adjustable bed-chair
US4961236A (en) * 1990-01-02 1990-10-09 Luconi Lanzo E Mattress position adjustment device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE133842T1 (de) * 1992-12-29 1996-02-15 Schmidt & Lenhardt Gmbh & Co Rückenstütze für in badewannen einsetzbare liftgeräte
GB2287401A (en) * 1994-03-12 1995-09-20 Mangar International Ltd Lifting device for beds

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1374295A (en) * 1919-04-28 1921-04-12 Louis A Fleury Pneumatic jack
US2632898A (en) * 1950-08-08 1953-03-31 Albert J Macdonald Invalid bed with fluid operated sections
US2725093A (en) * 1953-07-29 1955-11-29 Saelen Erling Bath tub and invalid lifting and transferring device
US2769182A (en) * 1954-04-21 1956-11-06 Erwin J Nunlist Inflatable mattress lifters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1374295A (en) * 1919-04-28 1921-04-12 Louis A Fleury Pneumatic jack
US2632898A (en) * 1950-08-08 1953-03-31 Albert J Macdonald Invalid bed with fluid operated sections
US2725093A (en) * 1953-07-29 1955-11-29 Saelen Erling Bath tub and invalid lifting and transferring device
US2769182A (en) * 1954-04-21 1956-11-06 Erwin J Nunlist Inflatable mattress lifters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879772A (en) * 1973-01-30 1975-04-29 Provencale De Fabrications Med Hospital bed
US3978530A (en) * 1975-11-21 1976-09-07 Amarantos John G Air inflatable bed-like device with adjustable back support
US4127906A (en) * 1976-07-15 1978-12-05 Zur Henry C Adjustable bed-chair
US4961236A (en) * 1990-01-02 1990-10-09 Luconi Lanzo E Mattress position adjustment device

Also Published As

Publication number Publication date
BR7202323D0 (pt) 1973-06-07
CH538859A (de) 1973-07-15
IT959504B (it) 1973-11-10
JPS5423636B1 (it) 1979-08-15
DE2218171A1 (de) 1972-11-02
NL7205125A (it) 1972-10-23
BE782277A (fr) 1972-08-16
DK135265B (da) 1977-03-28
DK135265C (it) 1977-09-05
DE2218171B2 (de) 1976-02-19
FR2136526A5 (it) 1972-12-22
CA951226A (en) 1974-07-16
GB1356359A (en) 1974-06-12
ES401923A1 (es) 1975-03-01
AT318799B (de) 1974-11-11
SE379271B (it) 1975-10-06
ZA722654B (en) 1973-01-31

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