EP0198946B1 - Device for interrupting lowering movements of motor-driven hoisting gears at patient-lifting units - Google Patents
Device for interrupting lowering movements of motor-driven hoisting gears at patient-lifting units Download PDFInfo
- Publication number
- EP0198946B1 EP0198946B1 EP85111455A EP85111455A EP0198946B1 EP 0198946 B1 EP0198946 B1 EP 0198946B1 EP 85111455 A EP85111455 A EP 85111455A EP 85111455 A EP85111455 A EP 85111455A EP 0198946 B1 EP0198946 B1 EP 0198946B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bracket
- displacement member
- motor
- sitting
- obstacle
- 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
Links
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Classifications
-
- 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
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1013—Lifting of patients by
- A61G7/1019—Vertical extending columns or mechanisms
-
- 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
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/104—Devices carried or supported by
- A61G7/1046—Mobile bases, e.g. having wheels
-
- 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
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1049—Attachment, suspending or supporting means for patients
- A61G7/1057—Supported platforms, frames or sheets for patient in lying position
-
- 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
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1049—Attachment, suspending or supporting means for patients
- A61G7/1059—Seats
-
- 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
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1063—Safety means
- A61G7/1065—Safety means with electronic monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- 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
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
- A61G2203/72—General characteristics of devices with special adaptations, e.g. for safety or comfort for collision prevention
Definitions
- the present invention relates to a device for interrupting lowering movements of motor-driven hoisting gears at patient-lifting units, whereby the hoisting gear comprises an anchoring member through which the hoisting gear is fixed onto a frame or similar, and a displacement member which is connected to the anchoring member and raisable and lowerable in relation thereto by means of a motor, whereby sitting and/ or lying means for patients is mounted on the displacement member through a bracket.
- hoisting gears are given in US-A-2,483,894 and in US-A-2,891,256.
- the object of the present invention is to eliminate this problem by means of a simple and reliable device. This is arrived at by providing the device with the characterizing features of claim 1.
- the device according to the invention provides an automatic lowering stop by sensing the change of position occurring when the sitting and/or lying means runs into an obstacle while the displacement member of the hoisting gear proceeds further downwards.
- the lowering movement is automatically interrupted before any serious risks of squeezing or of instability and tipping occur.
- the patient-transporting waggon 1 illustrated in the drawings is adapted for transporting patients between various locations, e.g. to or from a bed 2.
- the patient-transporting waggon 1 has a transportable frame 3 with four wheels 4.
- a hoisting gear 5 (a so called hoisting column) is mounted on the frame 3 and a seat 6 for the patient is provided on top of the hoisting gear.
- the hoisting gear 5 is adapted to raise the seat 6 to such a level that it may be located above the bed 2 and lowered thereto for transferring a patient from or to the seat.
- the hoisting gear 5 comprises an anchoring member 7 which is fixed onto the frame 3 by means of a screw joint 8.
- the hoisting gear 5 also comprises a displacement member 9 which by cooperation with the anchoring member 7 is movable in vertical direction.
- the anchoring member 7 comprises a sleeve 10 with an inner threaded portion 11 and the displacement member 9 comprises a threaded bar 12 projecting downwards into the sleeve.
- balls 13 are provided in such a way that the sleeve 10, bar 12 and balls 13 together define a so called ball screw 14.
- the upper end portion of the threaded bar 12 projects upwardly into a gearbox 15 forming part of the displacement member 9 and is provided with a pinion 16.
- the gearbox 15 is assembled with an electric motor 17, the driveshaft 18 of which is provided with a pinion 19 meshing with the pinion 16 of the gear box.
- the pinions 16, 19 are adapted to, during shifting, transfer the driving movement of the motor 17 to the threaded bar 12 for rotation thereof, i.e. to drive the ball screw 14. Since the motor 17 rotates the bar 12 in one direction relative to the sleeve 10, the displacement member 9 is moved upwards, and by rotating the bar in the opposite direction, the displacement member is moved downwards.
- a downward sleeve 20 mounted on the gearbox 15 surrounds the ball screw 14.
- a bracket 21 for the seat 6 and the arm and back support 22 of the patient-lifting unit is mounted on the displacement member 9.
- the bracket 21 consists of a box-like upper portion 21a a and a cylindrical sleeve 21 projecting downward therefrom.
- a yoke 27 (only schematically shown in the drawings) is provided on the cylindrical sleeve 21 for mounting the seat 6 and arm and/or back support 22.
- the box-like part 21a of the bracket 21 is adapted to provide a hood for the electric motor 17 and a battery box 23 with a battery is mounted thereon, said battery being connected to the motor for driving thereof.
- the frame 3 is provided with an upwardly directed cylindrical guide sleeve 25 with a laterally extending guiding arm 26 on top thereof.
- the sleeve 21b of the bracket 21 surrounds the guide sleeve 25 and provides a lateral passage 28 for the guiding arm 26. While the guiding arm 26 projects into the passage 28, it prevents the sleeve 21b and thus, the bracket 21 from rotating relative to the frame 3 during raising and lowering.
- the gearbox 15 forming part of the displacement member is on top provided with an upwardly directed fork 29 with a shaft journal 30 extending horizontally between two shanks defining the fork.
- the box-like part 21a a of the bracket 21 has a horizontally directed arm 31 with a long-hole 32 for the shaft journal 30.
- the arm 31 projects in between the shanks of the fork 29 such that the shaft journal 30 extends through the long-hole 32 in the arm, whereby the arm and the bracket 21 with their various parts will hang on the displacement member 9 through the shaft journal.
- the long-hole 32 is vertically directed and the length thereof about twice the diameter of the shaft journal 30. Normally, the upper edge of the long-hole will engage the shaft journal 30 (see fig. 1), but the long-hole permits the shaft journal to move downwards in the hole until it engages the lower edge of the long-hole (see fig. 3).
- the displacement member 9 is movable relative to the bracket 21 or vice versa and changes of position between said members 9, 21 are sensed by sensing and control means 33 forming part of the electric circuit 34 (see fig. 4) of the motor 17 and adapted to disconnect the circuit for automatically interrupting the lowering movement of the hoisting gear 5 when the seat 6 bumps into the bed 2 or any other obstruction.
- the sensing and control means 33 is mounted on the bracket 21 above the gearbox 15 and it has a protruding contact relay 35.
- the sensing and control means 33 is located on the bracket 21 relative to the long-hole 32 in the arm 31 such that the contact relay 35 thereof is depressed by the gearbox 15 when the upper edge of the long-hole engages the shaft journal 30, i.e. when the bracket is located in the normal position relative to the displacement member 9 indicated in fig 1.
- this position solid-line position S in fig. 4
- the contact relay 35 closes its portion 36 of the circuit 34 of the motor 17 such that the bracket 21 with associated seat 6 is lowered by pressing the operating unit 37 located on the bracket from neutral position O to position N (shown with solid lines in fig. 4) or raised by pressing the operating unit from neutral position 0 to position U (shown with dashed and dotted lines in fig. 4).
- the sensing and control means 33 controls the motor 17 to stop automatically.
- the motor 17 will drive the displacement member 9 a distance further downwards, because the long-hole 32 in the arm 31 will allow it until the shaft journal 30 reaches the lower edge of the hole (see fig. 3).
- spring means may press out the contact relay 35 to a position (position B in fig. 4 shown with dashed and dotted lines) at which it disconnects its portion 36 of the circuit 34 to the motor 17, whereby the motor stops and the lowering movement is automatically interrupted.
- Means 39 is provided between the displacement member 9 and the bracket 21 and adapted to apply an upwardly directed force to the bracket for reducing the pressure with which the seat 6, because of the weight of the seat and bracket, loads the bed 2 when the seat reaches it during lowering.
- an upwardly directed force to the bracket for reducing the pressure with which the seat 6, because of the weight of the seat and bracket, loads the bed 2 when the seat reaches it during lowering.
- the power generating means 39 preferably comprises a compression spring 40 which is located between the gearbox 15 and the arm 31 and this spring, or similar, affects the arm 31 with such an upwardly directed force which equalizes at least the major part, preferably about 90% of the force with which the bracket 21 and the members mounted thereon, because of their weight, load the compression spring 40 in downwards direction.
- the upwardly directed force of the compression spring 40 may not exceed the downward force of the bracket 21 and associated members on said spring, since the spring otherwise will move the bracket upwards to its upper position (see fig. 3) relative to the displacement member 9, whereby the sensing and controlling means 33 disconnects its portion 36 of the circuit 34 and render it impossible to lower the bracket 21 with its seat 6.
- the device illustrated in the drawings and described above may vary within the scope of the following claims without departing from the essential function thereof, i.e. to sense, by means of a simple sensing and control device, those changes of position permitted by a simple movement permitting device and, in dependence thereon, control the motor to automatically interrupt lowering of the seat when said seat, during lowering, bumps into an obstacle of any kind, e.g. a bed.
- the movement permitting device may be designed in a totally different manner than as shown (e.g. a long-hole may instead be provided in the displacement member and a shaft journal extending therethrough may form a part of the bracket).
- the sensing and control means may also be designed in quite a different way and located in another position.
- the hoisting gear of the patient-lifting unit may also vary in its design within certain limits and if a ball screw device is used, said device may be provided with a brake device preventing the seat from being lowered during overload conditions.
- the bracket for the seat may also vary in its shape and location and the seat may be either simple sitting means or sitting and/ or lying means for the patient.
- the means affecting the bracket in upwards direction may consist of one or more springs or other types of power generating means. Eventually, such means may be adjustable with regard to the rating of the force generated thereby.
- the power generating means may also be located in another position than indicated above and in the drawings. It is preferable but not absolutely necessary to design the bracket with a box-like part and provide various devices such as the relative movements permitting device and/or the sensing and control meansand/or the motor inside said box-like part in a protective manner.
- the patient-lifting unit with the device according to the invention may be used in other applications than for patient-transporting waggons of the described and illustrated type.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Nursing (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Invalid Beds And Related Equipment (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
Description
- The present invention relates to a device for interrupting lowering movements of motor-driven hoisting gears at patient-lifting units, whereby the hoisting gear comprises an anchoring member through which the hoisting gear is fixed onto a frame or similar, and a displacement member which is connected to the anchoring member and raisable and lowerable in relation thereto by means of a motor, whereby sitting and/ or lying means for patients is mounted on the displacement member through a bracket. Examples of such hoisting gears are given in US-A-2,483,894 and in US-A-2,891,256.
- At patient-lifting units of the above type, there is a risk that the lowering movement of the sitting and/or lying means because of lack of attention or for other reasons are not interrupted before said sitting and/or lying means runs into an obstacle, e.g. a bed. This may cause that the patient or someone else is caught between the sitting and/ or lying means and the bed or the patient-lifting unit may be more or less lifted from the ground or even tip with a patient sitting or lying thereon.
- The object of the present invention is to eliminate this problem by means of a simple and reliable device. This is arrived at by providing the device with the characterizing features of
claim 1. - The device according to the invention provides an automatic lowering stop by sensing the change of position occurring when the sitting and/or lying means runs into an obstacle while the displacement member of the hoisting gear proceeds further downwards. Thus, the lowering movement is automatically interrupted before any serious risks of squeezing or of instability and tipping occur.
- The invention will be further described below with reference to the accompanying drawings, in which
- fig. 1 is a side view of a patient-transporting waggon at which a patient-lifting unit has a device according to the invention;
- fig. 2 is a side view of the patient-transporting waggon standing beside a bed, whereby a sitting and lying means is shown with solid lines before it is lowered to the bed and with dashed and dotted lines after lowering to the bed;
- fig. 3 is a side view of the hoisting gear, whereby members forming part thereof are shown in their drawn-apart positions because of the sitting and/or lying means engaging the bed; and
- fig. 4 finally, is a switch diagram forming part of the device of the invention.
- The patient-transporting
waggon 1 illustrated in the drawings is adapted for transporting patients between various locations, e.g. to or from abed 2. The patient-transportingwaggon 1 has atransportable frame 3 with four wheels 4. A hoisting gear 5 (a so called hoisting column) is mounted on theframe 3 and a seat 6 for the patient is provided on top of the hoisting gear. The hoistinggear 5 is adapted to raise the seat 6 to such a level that it may be located above thebed 2 and lowered thereto for transferring a patient from or to the seat. - The hoisting
gear 5 comprises an anchoring member 7 which is fixed onto theframe 3 by means of a screw joint 8. The hoistinggear 5 also comprises adisplacement member 9 which by cooperation with the anchoring member 7 is movable in vertical direction. In order to carry out this movement, the anchoring member 7 comprises asleeve 10 with an inner threadedportion 11 and thedisplacement member 9 comprises a threadedbar 12 projecting downwards into the sleeve. Between the threads of thesleeve 10 and thebar 12 respectively,balls 13 are provided in such a way that thesleeve 10,bar 12 andballs 13 together define a so calledball screw 14. The upper end portion of the threadedbar 12 projects upwardly into agearbox 15 forming part of thedisplacement member 9 and is provided with apinion 16. Thegearbox 15 is assembled with anelectric motor 17, thedriveshaft 18 of which is provided with apinion 19 meshing with thepinion 16 of the gear box. Thepinions motor 17 to the threadedbar 12 for rotation thereof, i.e. to drive theball screw 14. Since themotor 17 rotates thebar 12 in one direction relative to thesleeve 10, thedisplacement member 9 is moved upwards, and by rotating the bar in the opposite direction, the displacement member is moved downwards. Adownward sleeve 20 mounted on thegearbox 15 surrounds theball screw 14. - A
bracket 21 for the seat 6 and the arm andback support 22 of the patient-lifting unit is mounted on thedisplacement member 9. Thebracket 21 consists of a box-like upper portion 21a a and acylindrical sleeve 21 projecting downward therefrom. A yoke 27 (only schematically shown in the drawings) is provided on thecylindrical sleeve 21 for mounting the seat 6 and arm and/orback support 22. - The box-like part 21a of the
bracket 21 is adapted to provide a hood for theelectric motor 17 and abattery box 23 with a battery is mounted thereon, said battery being connected to the motor for driving thereof. - The
frame 3 is provided with an upwardly directedcylindrical guide sleeve 25 with a laterally extending guidingarm 26 on top thereof. Thesleeve 21b of thebracket 21 surrounds theguide sleeve 25 and provides alateral passage 28 for the guidingarm 26. While the guidingarm 26 projects into thepassage 28, it prevents thesleeve 21b and thus, thebracket 21 from rotating relative to theframe 3 during raising and lowering. - For retaining the
bracket 21 on thedisplacement member 9, thegearbox 15 forming part of the displacement member is on top provided with an upwardly directedfork 29 with ashaft journal 30 extending horizontally between two shanks defining the fork. The box-like part 21a a of thebracket 21 has a horizontally directedarm 31 with a long-hole 32 for theshaft journal 30. Thearm 31 projects in between the shanks of thefork 29 such that theshaft journal 30 extends through the long-hole 32 in the arm, whereby the arm and thebracket 21 with their various parts will hang on thedisplacement member 9 through the shaft journal. - The long-
hole 32 is vertically directed and the length thereof about twice the diameter of theshaft journal 30. Normally, the upper edge of the long-hole will engage the shaft journal 30 (see fig. 1), but the long-hole permits the shaft journal to move downwards in the hole until it engages the lower edge of the long-hole (see fig. 3). Thus, thedisplacement member 9 is movable relative to thebracket 21 or vice versa and changes of position between saidmembers motor 17 and adapted to disconnect the circuit for automatically interrupting the lowering movement of the hoistinggear 5 when the seat 6 bumps into thebed 2 or any other obstruction. - The sensing and
control means 33 is mounted on thebracket 21 above thegearbox 15 and it has a protrudingcontact relay 35. The sensing andcontrol means 33 is located on thebracket 21 relative to the long-hole 32 in thearm 31 such that thecontact relay 35 thereof is depressed by thegearbox 15 when the upper edge of the long-hole engages theshaft journal 30, i.e. when the bracket is located in the normal position relative to thedisplacement member 9 indicated in fig 1. In this position (solid-line position S in fig. 4) thecontact relay 35 closes itsportion 36 of thecircuit 34 of themotor 17 such that thebracket 21 with associated seat 6 is lowered by pressing theoperating unit 37 located on the bracket from neutral position O to position N (shown with solid lines in fig. 4) or raised by pressing the operating unit fromneutral position 0 to position U (shown with dashed and dotted lines in fig. 4). - If however, the seat 6 is lowered so far that it hits the
bed 2, the sensing and control means 33 controls themotor 17 to stop automatically. When the seat 6 reaches thebed 2 and is prevented from proceeding downwards, themotor 17 will drive the displacement member 9 a distance further downwards, because the long-hole 32 in thearm 31 will allow it until theshaft journal 30 reaches the lower edge of the hole (see fig. 3). This means that also thegearbox 15 will be lowered relative to the sensing and control means 33 such that spring means (not shown) may press out thecontact relay 35 to a position (position B in fig. 4 shown with dashed and dotted lines) at which it disconnects itsportion 36 of thecircuit 34 to themotor 17, whereby the motor stops and the lowering movement is automatically interrupted. A further lowering of thedisplacement member 9 and thus the seat 6, is not possible thereafter. By thereafter moving theoperating unit 37 to position U, theportion 38 of thecircuit 34 is connected, which means that themotor 17 is operated to rotate for raising thedisplacement member 9. Elevation of thedisplacement member 9 causes theshaft journal 30 to move upwards in the long-hole 32 until it engages the upper edge of said hole and brings along thebracket 21 and thereby, the seat 6. Hereby, thecontact relay 35 of the sensing and control means 33 is once again depressed by thegearbox 15 to position S shown with solid lines in fig. 4, at which position it conntects itsportion 36 of thecircuit 34 such that thedisplacement member 9 may once again be lowered by moving theoperating unit 37 to position N. -
Means 39 is provided between thedisplacement member 9 and thebracket 21 and adapted to apply an upwardly directed force to the bracket for reducing the pressure with which the seat 6, because of the weight of the seat and bracket, loads thebed 2 when the seat reaches it during lowering. Hereby, eventual squeezing forces are reduced and automatic disconnection of the lowering movement of theelectric motor 17 occurs quicker even if the seat 6 reaches a relatively resilient or yielding part of thebed 2. The power generating means 39 preferably comprises acompression spring 40 which is located between thegearbox 15 and thearm 31 and this spring, or similar, affects thearm 31 with such an upwardly directed force which equalizes at least the major part, preferably about 90% of the force with which thebracket 21 and the members mounted thereon, because of their weight, load thecompression spring 40 in downwards direction. The upwardly directed force of thecompression spring 40 however, may not exceed the downward force of thebracket 21 and associated members on said spring, since the spring otherwise will move the bracket upwards to its upper position (see fig. 3) relative to thedisplacement member 9, whereby the sensing and controllingmeans 33 disconnects itsportion 36 of thecircuit 34 and render it impossible to lower thebracket 21 with its seat 6. - The device illustrated in the drawings and described above, may vary within the scope of the following claims without departing from the essential function thereof, i.e. to sense, by means of a simple sensing and control device, those changes of position permitted by a simple movement permitting device and, in dependence thereon, control the motor to automatically interrupt lowering of the seat when said seat, during lowering, bumps into an obstacle of any kind, e.g. a bed. As an alternative (not shown), the movement permitting device may be designed in a totally different manner than as shown (e.g. a long-hole may instead be provided in the displacement member and a shaft journal extending therethrough may form a part of the bracket). The sensing and control means may also be designed in quite a different way and located in another position. The hoisting gear of the patient-lifting unit may also vary in its design within certain limits and if a ball screw device is used, said device may be provided with a brake device preventing the seat from being lowered during overload conditions. The bracket for the seat may also vary in its shape and location and the seat may be either simple sitting means or sitting and/ or lying means for the patient.
- The means affecting the bracket in upwards direction may consist of one or more springs or other types of power generating means. Eventually, such means may be adjustable with regard to the rating of the force generated thereby. The power generating means may also be located in another position than indicated above and in the drawings. It is preferable but not absolutely necessary to design the bracket with a box-like part and provide various devices such as the relative movements permitting device and/or the sensing and control meansand/or the motor inside said box-like part in a protective manner.
- Finally, it may be noticed that the patient-lifting unit with the device according to the invention may be used in other applications than for patient-transporting waggons of the described and illustrated type.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85111455T ATE43493T1 (en) | 1985-04-26 | 1985-09-11 | DISCONNECTING DEVICE FOR THE MOVEMENT OF LIFTING GEARS FOR HYDRAULIC LIFTING EQUIPMENT. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8502026 | 1985-04-26 | ||
SE8502026A SE442948B (en) | 1985-04-26 | 1985-04-26 | DEVICE FOR STOPPING SUBMISSION MOVEMENTS OF MOTOR LIFTING UNITS |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0198946A2 EP0198946A2 (en) | 1986-10-29 |
EP0198946A3 EP0198946A3 (en) | 1987-12-02 |
EP0198946B1 true EP0198946B1 (en) | 1989-05-31 |
Family
ID=20359984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85111455A Expired EP0198946B1 (en) | 1985-04-26 | 1985-09-11 | Device for interrupting lowering movements of motor-driven hoisting gears at patient-lifting units |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0198946B1 (en) |
AT (1) | ATE43493T1 (en) |
DE (1) | DE3570592D1 (en) |
SE (1) | SE442948B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021082432A1 (en) * | 2019-10-29 | 2021-05-06 | 深圳市迈康信医用机器人有限公司 | Electric lifting and moving machine |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE464446B (en) * | 1986-11-10 | 1991-04-29 | Unbescheiden Gmbh | A lifting device |
SE455990B (en) * | 1986-12-29 | 1988-08-29 | Electrolux Ab | PATIENT LIFTING |
DK483788A (en) * | 1988-08-31 | 1990-03-01 | Finn Hvidtfeldt Hesse Pedersen | SAFETY EQUIPMENT FOR PERSONAL PROMISES WITH ELECTRIC LIFT |
FR2727296B1 (en) * | 1994-11-30 | 1997-01-31 | Dubuis | SAFETY ARRANGEMENT FOR THE MOTOR DRIVE OF A MOBILE PART IN RELATION TO A FIXED AND FURNISHED PART WHICH IS EQUIPPED |
GB2335595B (en) * | 1998-03-27 | 2002-08-21 | Sunrise Medical Ltd | Apparatus for lifting a bather into and out of a bath |
US6643861B2 (en) | 2000-04-14 | 2003-11-11 | Freedom Bath, Inc. | Bath lifting system |
US6397409B1 (en) | 2000-04-14 | 2002-06-04 | Freedom Bath, Inc. | Bath lifting system |
DE102005015795B4 (en) * | 2005-04-06 | 2008-02-14 | Siemens Ag | Device protection for lifting unit |
GB2427699A (en) | 2005-04-09 | 2007-01-03 | Smarta Systems Ltd | Overload monitoring system |
EP2338456A1 (en) * | 2009-12-22 | 2011-06-29 | Invacare International Sàrl | Method for securitizing the lifting operation of a wheelchair seat and Lifting Device fo a wheelchair |
KR102031057B1 (en) * | 2017-09-27 | 2019-10-15 | 한국과학기술연구원 | Patient transfer apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2483894A (en) * | 1946-06-29 | 1949-10-04 | Kelley Koett Mfg Co | Lifting device |
US2688410A (en) * | 1949-08-27 | 1954-09-07 | George B Nelson | Device for transporting bedridden patients |
US2891256A (en) * | 1954-05-19 | 1959-06-23 | Scully Vincent | Apparatus for lifting and transporting patients |
US4176826A (en) * | 1978-07-03 | 1979-12-04 | General Electric Company | Safety catch apparatus for a suspension system |
-
1985
- 1985-04-26 SE SE8502026A patent/SE442948B/en not_active IP Right Cessation
- 1985-09-11 AT AT85111455T patent/ATE43493T1/en not_active IP Right Cessation
- 1985-09-11 DE DE8585111455T patent/DE3570592D1/en not_active Expired
- 1985-09-11 EP EP85111455A patent/EP0198946B1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021082432A1 (en) * | 2019-10-29 | 2021-05-06 | 深圳市迈康信医用机器人有限公司 | Electric lifting and moving machine |
Also Published As
Publication number | Publication date |
---|---|
DE3570592D1 (en) | 1989-07-06 |
EP0198946A2 (en) | 1986-10-29 |
ATE43493T1 (en) | 1989-06-15 |
SE442948B (en) | 1986-02-10 |
SE8502026D0 (en) | 1985-04-26 |
EP0198946A3 (en) | 1987-12-02 |
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