WO1991011979A1 - An apparatus for inclining the patient-supporting portion of a hospital bed - Google Patents

An apparatus for inclining the patient-supporting portion of a hospital bed Download PDF

Info

Publication number
WO1991011979A1
WO1991011979A1 PCT/FI1991/000045 FI9100045W WO9111979A1 WO 1991011979 A1 WO1991011979 A1 WO 1991011979A1 FI 9100045 W FI9100045 W FI 9100045W WO 9111979 A1 WO9111979 A1 WO 9111979A1
Authority
WO
WIPO (PCT)
Prior art keywords
patient
supporting portion
levers
lever
hospital bed
Prior art date
Application number
PCT/FI1991/000045
Other languages
French (fr)
Inventor
Jyrki MÄKELÄINEN
Matti O. J. Nieminen
Kari Olkkonen
Original Assignee
A. Ahlstrom Corporation
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 A. Ahlstrom Corporation filed Critical A. Ahlstrom Corporation
Publication of WO1991011979A1 publication Critical patent/WO1991011979A1/en

Links

Classifications

    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065—Scissor linkages, i.e. X-configuration
    • 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
    • A61G7/005—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame tiltable around transverse horizontal axis, e.g. for Trendelenburg position
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/0625—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement with wheels for moving around the floor
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/22—Lifting frames, e.g. for lifting vehicles; Platform lifts with tiltable platforms

Definitions

  • the present invention relates to a bed, a hospital bed in particular, the patient-supporting portion of which can be raised, lowered and inclined.
  • the patient-supporting portion of modern hospital beds can be lifted up to a higher position which is favourable for the work of the nursing staff and lowered down to a lower position which is convenient for the patient. Further, nursing of the patient may require that the whole patient- supporting portion is inclined in its longitudinal direction to lift the foot end of the bed higher than the head end, or vise versa.
  • the object of the invention is to provide a structurally simple apparatus for lifting, lowering and inclining of the patient-supporting portion of a hospital bed or a like bed.
  • the apparatus according to the invention is mainly characterized in that a scissors mechanism is disposed between the patient-supporting portion and the body, the two-armed levers of the scissors mechanism being operationally connected to means regulating the length of at least one of the arms.
  • At least one of the levers of the scissors mechanism is composed of a pipe slidably disposed inside another pipe and connected to it via a pneumatic spring.
  • Fig. 1 is a side view of an apparatus according to the invention
  • Fig. 2 is an end view of the apparatus of Fig. 1 in the direction A;
  • Fig. 3 is a section along line B - B of Fig. 1;
  • Fig. 4 is an enlarged section along line C - C of Fig.
  • Fig. 5 is a fragmentary schematic elevation of an alternative embodiment.
  • the hospital bed illustrated in Figs. 1 - 4 comprises a body 2 and a patient-supporting portion 4 and a scissors mechanism 6 extending between the body and the patient- supporting portion.
  • the scissors mechanism comprises a central articulated lever 8 crossed and pivotally interconnected with two articulated levers 10 with the crossed two-armed articulated levers 8 and 10 thus arranged the lever 8, located under the center line of the patient- supporting portion supports the underlay at the center area, and the two levers 10 located spaced apart from each other symmetrically on both sides of the lever 8 support the patient-supporting portion at one end area of the underlay.
  • the upper end of the lever 8 is pivotted on a shaft 14 supported in -shaped longitudinal bars 12 of the patient-supporting portion, and the lower end on a shaft 22 attached to slides 20 moving in slideways 18 formed by [ ⁇ -shaped bars 16 of the body.
  • the upper ends of the levers 10 are pivotted on a shaft 28 supported in slides 26 moving in slideways 24 formed by j ⁇ -shaped bars 12 of the patient-supporting portion, and the lower ends on a shaft 30 attached to the _ ⁇ _-shaped bar 16 of the body.
  • the levers are interconnected by an articulated joint via a shaft 32 disposed at the crossing point of the levers.
  • the slides 20 at the lower end of the lever 8 can be moved in the slideways 18 by means of a screw spindle 34, which moves linearly and is functionally connected to the slides and driven by a motor 36. While the slides of the lower end of the lever 8 move the slides 26 of the upper ends of the levers 10 move in their slideways in a corresponding way. When the lower ends of the levers approach each other the patient-supporting portion rises up and when they move away from each other the patient-supporting portion descends.
  • the upper portion of the levers 10 is constituted by a square tube 38 slidably disposed in a square tube 40 serving as the center and the lower portion of the lever 10.
  • a pneumatic spring 46 is provided inside the tubes and a piston arm 48 of the spring is connected, via a pin 50, to the inner tube 38.
  • a pneumatic spring cylinder 52 is connected, via a sleeve 54 surrounding said cylinder, to the outer tube 40. In the end of the cylinder, there is a threaded pin 56 connected to a flange 58 in the sleeve.
  • the sleeve 54 is connected to the outer tube via a shaft 60.
  • the cylinder of the pneumatic spring is formed by an inner tube 62 and an outer tube 64.
  • a valve 66 for changing the position of a piston 68.
  • a space 70 by the piston and a space 71 by the piston arm communicate with each other and gas can flow from one space to another via a passage 72 between the outer tube and the inner tube and via ducts 74 and 76 at the ends of the cylinder whereby the piston can move.
  • the valve is opened by turning the shaft 60 and an eccentric means 78 connected to said shaft. When the valve is closed the flow of gas is prevented.
  • the pneumatic spring is filled with pressurized gas such as nitrogen and possibly also with oil by a method know per se.
  • the distance between the shafts 28 and 32 of the levers 10, i.e. the length of the upper arm 33 of the lever is thus easily changeable with the pneumatic spring.
  • the lifting means is favourably located at the foot end of the patient- supporting portion since the head end of the patient- supporting portion must be separately turnable in different positions.
  • the thrust of the pneumatic spring is chosen to correspond to the weight of the foot end portion of the patient- supporting portion which ensures balance of the patient- supporting portion and it is equally easy to change the longitudinal inclination of the patient-supporting portion in both directions.
  • the lifting up and lowering down of the patient-supporting portion takes place by a scissors mechanism, the patient-supporting portion does not move in longitudinal direction during the lifting or the descending- operation.
  • the lifting and the inclining motion of a hospital bed according to the invention is achieved by a simple lever mechanism.
  • the pneumatic spring can be replaced by other means effecting a change in the length, e. g. by a screw mechanism as in the alternative embodiment illustrated in Fig. 5.
  • the length of the lever arms is changed by shifting the crossing point of the levers.
  • a slideway 80 is formed in the lever 8 and a slide 82 movable in the direction of the lever is provided in the slideway.
  • the slide is provided with a shaft 32 to which the levers 10 are journalled.
  • the slide is connected to a screw spindle 84 which moves linearly and is driven by a motor 86.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Nursing (AREA)
  • Rehabilitation Therapy (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The present invention relates to an apparatus for inclining the patient-supporting portion (4) of a raisable and lowerable hospital bed. In a scissors mechanism (6) provided between a body (2) and the patient-supporting portion (4), an arm (33) of one of the two-armed levers (8, 10) is provided with an adjustable pneumatic spring (46) for regulating the length of the arm. For this purpose the lever is formed by an outer tube (40) and by an inner tube (38) disposed slidably therein.

Description

AN APPARATUS FOR INCLINING THE PATIENT-SUPPORTING PORTION OF A HOSPITAL BED
BACKGROUND OF THE INVENTION The present invention relates to a bed, a hospital bed in particular, the patient-supporting portion of which can be raised, lowered and inclined.
The patient-supporting portion of modern hospital beds can be lifted up to a higher position which is favourable for the work of the nursing staff and lowered down to a lower position which is convenient for the patient. Further, nursing of the patient may require that the whole patient- supporting portion is inclined in its longitudinal direction to lift the foot end of the bed higher than the head end, or vise versa.
In prior art hospital beds, the lifting and the lowering movement of the patient-supporting portion has been effected by various parallel mechanisms, and the inclining by means disposed between the parallel mechanism and the patient- supporting portion. Combination of the mechanisms has, however, resulted in rather complex structures.
SUMMARY OF THE INVENTION
The object of the invention is to provide a structurally simple apparatus for lifting, lowering and inclining of the patient-supporting portion of a hospital bed or a like bed.
The apparatus according to the invention is mainly characterized in that a scissors mechanism is disposed between the patient-supporting portion and the body, the two-armed levers of the scissors mechanism being operationally connected to means regulating the length of at least one of the arms.
Preferably at least one of the levers of the scissors mechanism is composed of a pipe slidably disposed inside another pipe and connected to it via a pneumatic spring.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described in more detail, by way of example, with reference to the accompanying drawings, in whic :-
Fig. 1 is a side view of an apparatus according to the invention; Fig. 2 is an end view of the apparatus of Fig. 1 in the direction A;
Fig. 3 is a section along line B - B of Fig. 1;
Fig. 4 is an enlarged section along line C - C of Fig.
1; and Fig. 5 is a fragmentary schematic elevation of an alternative embodiment.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
The hospital bed illustrated in Figs. 1 - 4 comprises a body 2 and a patient-supporting portion 4 and a scissors mechanism 6 extending between the body and the patient- supporting portion. The scissors mechanism comprises a central articulated lever 8 crossed and pivotally interconnected with two articulated levers 10 with the crossed two-armed articulated levers 8 and 10 thus arranged the lever 8, located under the center line of the patient- supporting portion supports the underlay at the center area, and the two levers 10 located spaced apart from each other symmetrically on both sides of the lever 8 support the patient-supporting portion at one end area of the underlay. The upper end of the lever 8 is pivotted on a shaft 14 supported in -shaped longitudinal bars 12 of the patient-supporting portion, and the lower end on a shaft 22 attached to slides 20 moving in slideways 18 formed by [^-shaped bars 16 of the body. The upper ends of the levers 10 are pivotted on a shaft 28 supported in slides 26 moving in slideways 24 formed by j^-shaped bars 12 of the patient-supporting portion, and the lower ends on a shaft 30 attached to the _~_-shaped bar 16 of the body. Further, the levers are interconnected by an articulated joint via a shaft 32 disposed at the crossing point of the levers.
The slides 20 at the lower end of the lever 8 can be moved in the slideways 18 by means of a screw spindle 34, which moves linearly and is functionally connected to the slides and driven by a motor 36. While the slides of the lower end of the lever 8 move the slides 26 of the upper ends of the levers 10 move in their slideways in a corresponding way. When the lower ends of the levers approach each other the patient-supporting portion rises up and when they move away from each other the patient-supporting portion descends. The upper portion of the levers 10 is constituted by a square tube 38 slidably disposed in a square tube 40 serving as the center and the lower portion of the lever 10. At the upper end of the outer tube 40, there are internal slide blocks 42 and at the lower end of the internal tube 38, there are external slide blocks 44 guiding the movement of the tube 38. A pneumatic spring 46 is provided inside the tubes and a piston arm 48 of the spring is connected, via a pin 50, to the inner tube 38. A pneumatic spring cylinder 52 is connected, via a sleeve 54 surrounding said cylinder, to the outer tube 40. In the end of the cylinder, there is a threaded pin 56 connected to a flange 58 in the sleeve. The sleeve 54 is connected to the outer tube via a shaft 60. The cylinder of the pneumatic spring is formed by an inner tube 62 and an outer tube 64. At the end of the cylinder, there is a valve 66 for changing the position of a piston 68. When the valve is opened a space 70 by the piston and a space 71 by the piston arm communicate with each other and gas can flow from one space to another via a passage 72 between the outer tube and the inner tube and via ducts 74 and 76 at the ends of the cylinder whereby the piston can move. The valve is opened by turning the shaft 60 and an eccentric means 78 connected to said shaft. When the valve is closed the flow of gas is prevented. The pneumatic spring is filled with pressurized gas such as nitrogen and possibly also with oil by a method know per se.
The distance between the shafts 28 and 32 of the levers 10, i.e. the length of the upper arm 33 of the lever is thus easily changeable with the pneumatic spring. When the length of the arm is increased the end of the patient- supporting portion by the extendable upper arm rises up and when the length of the arm is reduced the end of the patient-supporting portion descends. The lifting means is favourably located at the foot end of the patient- supporting portion since the head end of the patient- supporting portion must be separately turnable in different positions.
The thrust of the pneumatic spring is chosen to correspond to the weight of the foot end portion of the patient- supporting portion which ensures balance of the patient- supporting portion and it is equally easy to change the longitudinal inclination of the patient-supporting portion in both directions.
Since, according to the invention, the lifting up and lowering down of the patient-supporting portion takes place by a scissors mechanism, the patient-supporting portion does not move in longitudinal direction during the lifting or the descending- operation.
The lifting and the inclining motion of a hospital bed according to the invention is achieved by a simple lever mechanism.
It is obvious that the pneumatic spring can be replaced by other means effecting a change in the length, e. g. by a screw mechanism as in the alternative embodiment illustrated in Fig. 5. In this embodiment, the length of the lever arms is changed by shifting the crossing point of the levers. A slideway 80 is formed in the lever 8 and a slide 82 movable in the direction of the lever is provided in the slideway. The slide is provided with a shaft 32 to which the levers 10 are journalled. The slide is connected to a screw spindle 84 which moves linearly and is driven by a motor 86. When the slide is moved the lengths of the lever upper arm 88 and the lever lower arm 90 are changed and the upper end of the lever 10 rises and descends whereby the patient-supporting portion is inclined in the desired direction.
Although only a hospital bed is mentioned in the description of the invention it is clear that the same inventive concept can be applied also in other corresponding beds and apparatus.

Claims

WE CLAIM:
1. An apparatus for inclining the patient-supporting portion (4) of a hospital bed which hospital bed further comprises a body (2) and adevice for lifting and lowering the patient-supporting portion, characterized in that said device comprises a scissors mechanism (6) provided between the body (2) and the patient-supporting portion (4) and the two-armed levers (8, 10) of which scissors mechanism are functionally connected to means (46, 82, 86) controlling the operation of at least one arm (33).
2. An apparatus as claimed in claim 1, characterized in that the means (46) controlling the length of the lever (10) is provided in the portion (33) of one lever (10).
3. An apparatus as claimed in claim 1, characterized in that the means controlling the length of the arms (88, 90) is disposed in the crossing region to displace the pivot interconnection (32) of the levers (8, 10).
4 An apparatus as claimed in any of the claim 1, 2, or 3, characterized in that the means (46) controlling the length of the portion (33) of one lever (10) is an adjustable pneumatic spring.
5. An apparatus as claimed in claim 4, characterized in that at least one of the levers (10) of the scissors mechanism (6) comprises a tube (38) which is telescopically disposed inside a second tube (40) and connected thereto via a pneumatic spring (46).
6. An apparatus as claimed in claim 3, characterized in that the levers (8, 10) of the scissors mechanism (6) are pivotably interconnected via a means (82) determining the locations of the crossing point (32) of the levers and movable in alignment with one of the levers (8) .
PCT/FI1991/000045 1990-02-13 1991-02-13 An apparatus for inclining the patient-supporting portion of a hospital bed WO1991011979A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI900688A FI86796C (en) 1990-02-13 1990-02-13 Device for inclination of sleeping mats in hospital bed
FI900688 1990-02-13

Publications (1)

Publication Number Publication Date
WO1991011979A1 true WO1991011979A1 (en) 1991-08-22

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ID=8529869

Family Applications (1)

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Country Status (5)

Country Link
AU (1) AU7216691A (en)
FI (1) FI86796C (en)
IE (1) IE910439A1 (en)
PT (1) PT96753A (en)
WO (1) WO1991011979A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016176A1 (en) * 1991-03-18 1992-10-01 Ahlstrom Consumer Products Ltd. Hospital bed
DE29517945U1 (en) * 1995-11-13 1996-06-20 H. Kirchner Handels GmbH, 55232 Alzey Adjustment frame for height and inclination adjustment of the bed surface in beds, both in the private area and in the area of nursing
US5802638A (en) * 1993-03-18 1998-09-08 Keymed (Medical & Industrial Equipment) Ltd. Adjustable load supporting apparatus
US20120060291A1 (en) * 2010-09-07 2012-03-15 Dave Gamman Height adjustment mechanism for a massage table
US20130174341A1 (en) * 2011-07-07 2013-07-11 Hong Shang Device for Driving Lifting Movement of Examination Bed, Examination Bed, and Medical Equipment
US20130305452A1 (en) * 2012-05-17 2013-11-21 Toshiba Medical Systems Corporation Gantry-diagnostic bed system and folding method thereof
CN107253688A (en) * 2017-06-23 2017-10-17 苏州市优诺特升降机械有限公司 A kind of Mobile hydraulic elevating machine
CN108621902A (en) * 2018-06-28 2018-10-09 武汉雷神特种器材有限公司 Novel cut formula transmission device
US20180328073A1 (en) * 2015-11-16 2018-11-15 Vitabri Folding shelter structure device
CN109648112A (en) * 2019-02-26 2019-04-19 广安职业技术学院 A kind of drilling device for electronic device processing
US11800927B1 (en) 2015-01-24 2023-10-31 Office Kick, Inc. Desktop workspace that adjusts vertically
US12121149B1 (en) 2024-04-26 2024-10-22 Office Kick, Inc. Desktop workspace that adjusts vertically

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611453A (en) * 1970-06-25 1971-10-12 American Hospital Supply Corp Invalid bed and tilt actuating mechanism
SE368145B (en) * 1972-09-14 1974-06-24 Landstingens Inkopscentral

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611453A (en) * 1970-06-25 1971-10-12 American Hospital Supply Corp Invalid bed and tilt actuating mechanism
SE368145B (en) * 1972-09-14 1974-06-24 Landstingens Inkopscentral

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT'S ABSTRACT, No. 87- 5 317/01; & SU,A,1 229 175, Publ. week 8701, (VOROSH MACH CONS). *

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016176A1 (en) * 1991-03-18 1992-10-01 Ahlstrom Consumer Products Ltd. Hospital bed
US5802638A (en) * 1993-03-18 1998-09-08 Keymed (Medical & Industrial Equipment) Ltd. Adjustable load supporting apparatus
DE29517945U1 (en) * 1995-11-13 1996-06-20 H. Kirchner Handels GmbH, 55232 Alzey Adjustment frame for height and inclination adjustment of the bed surface in beds, both in the private area and in the area of nursing
US20120060291A1 (en) * 2010-09-07 2012-03-15 Dave Gamman Height adjustment mechanism for a massage table
US9072645B2 (en) * 2010-09-07 2015-07-07 Earthlite Massage Tables, Inc. Height adjustment mechanism for a massage table
US20130174341A1 (en) * 2011-07-07 2013-07-11 Hong Shang Device for Driving Lifting Movement of Examination Bed, Examination Bed, and Medical Equipment
US9095488B2 (en) * 2011-07-07 2015-08-04 Siemens Aktiengesellschaft Device for driving lifting movement of examination bed, examination bed, and medical equipment
US20130305452A1 (en) * 2012-05-17 2013-11-21 Toshiba Medical Systems Corporation Gantry-diagnostic bed system and folding method thereof
CN103417237A (en) * 2012-05-17 2013-12-04 株式会社东芝 System of stand and examining bed
US11800927B1 (en) 2015-01-24 2023-10-31 Office Kick, Inc. Desktop workspace that adjusts vertically
US11950699B1 (en) 2015-01-24 2024-04-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US12102229B1 (en) 2015-01-24 2024-10-01 Office Kick, Inc. Desktop workspace that adjusts vertically
US12082696B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US12082695B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US11980289B1 (en) 2015-01-24 2024-05-14 Office Kick, Inc. Desktop workspace that adjusts vertically
US11849843B1 (en) 2015-01-24 2023-12-26 Office Kick, Inc. Desktop workspace that adjusts vertically
US11857073B1 (en) 2015-01-24 2024-01-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US11864654B1 (en) 2015-01-24 2024-01-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US11910926B1 (en) 2015-01-24 2024-02-27 Office Kick, Inc. Desktop workspace that adjusts vertically
US11944196B1 (en) 2015-01-24 2024-04-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US11925264B1 (en) 2015-01-24 2024-03-12 Office Kick, Inc. Desktop workspace that adjusts vertically
US10662667B2 (en) * 2015-11-16 2020-05-26 Vitabri Folding shelter structure device
US20180328073A1 (en) * 2015-11-16 2018-11-15 Vitabri Folding shelter structure device
CN107253688A (en) * 2017-06-23 2017-10-17 苏州市优诺特升降机械有限公司 A kind of Mobile hydraulic elevating machine
CN108621902B (en) * 2018-06-28 2024-03-01 武汉雷神特种器材有限公司 Novel scissor type transmitting device
CN108621902A (en) * 2018-06-28 2018-10-09 武汉雷神特种器材有限公司 Novel cut formula transmission device
CN109648112A (en) * 2019-02-26 2019-04-19 广安职业技术学院 A kind of drilling device for electronic device processing
US12121149B1 (en) 2024-04-26 2024-10-22 Office Kick, Inc. Desktop workspace that adjusts vertically

Also Published As

Publication number Publication date
AU7216691A (en) 1991-09-03
IE910439A1 (en) 1991-08-14
FI86796C (en) 1992-10-26
FI900688A0 (en) 1990-02-13
PT96753A (en) 1992-12-31
FI86796B (en) 1992-07-15
FI900688A (en) 1991-08-14

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