WO1998015487A1 - Device for weight outbalancing in connection with lifts - Google Patents
Device for weight outbalancing in connection with lifts Download PDFInfo
- Publication number
- WO1998015487A1 WO1998015487A1 PCT/SE1997/000912 SE9700912W WO9815487A1 WO 1998015487 A1 WO1998015487 A1 WO 1998015487A1 SE 9700912 W SE9700912 W SE 9700912W WO 9815487 A1 WO9815487 A1 WO 9815487A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lifting
- cylinder
- cylinder axis
- lifting tool
- load
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
Definitions
- the invention relates to a lifting equipment that outbalances a weight
- the balancing is intended to work independent from the size of weight within the working area
- Figures 1-4 show the working function for the lifting device that outbalances a weight
- FIGS 5-6 show the lifting device from the front and from the side Details on the drawing figures 5-6
- the invention has two different force suppliers
- the manipulator has two working modes
- the drawing shows a cylinder axis (5) that is drawn out in its head position
- a guide is mounted on the cylinder axis, that is able to run up and down
- One or several wheels (12 + 13) are mounted, depended on the transmission desired
- the cord (4) has been drawn through the wheels and attached to its end in point 14
- the other end of the cord has been connected to the lifting tool (15) When the lifting tool moves into a vertical level it will consequently be outbalanced
- the cylinder axis is in its head position, as there will be a common pressure on both cylinder chambers (7 + 10)
- the space in the front chamber (7) is somewhat smaller owing to the sur ace of the axis, that will cause the axis to be fully projected
- the pressure in the lower cylinder chamber (10) will slowly fall
- the axis (5) will consequently move down
- the lower part of the slide valve (2) meets the upper part of the slide (6)
- the slide (6) will be pressed down and the load (15) will be lifted
- the pressure in the cylinder chamber (7 and 10 respectively) is constant, which results in the lifting force being constant in the whole operating range
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Manipulator (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Device for outbalancing a lifting tool and a load separately in connection with a lift. The lifting tool will be outbalanced with a counterweight, the load will be outbalanced by the force of a cylinder.
Description
Device for weight outbalancing in connection with lifts
The invention relates to a lifting equipment that outbalances a weight The balancing is intended to work independent from the size of weight within the working area
Background to the invention
Today it is time-wasting to lift easy details with facilities One wish is to find a lifting tool with the same movement speed as the hand of a human being
When an object is to be lifted with the help of a manipulator the following forces must be transmitted
Force F1 weight of the detail
Force F2 weight of the lifting tool
Force F3 inertia of the manipulator
The total lifting force F will accordingly be F = F1 + F2 + F3
In a normal handling cycle appr 50% of the time will handle the forces F1
+ F2 + F3 and appr 50% of the time will handle F2 + F3
Purpose of the invention
To effect a lifting tool that follows the movements of your hand The invention is below mentioned "manipulator"
Drawings
Figures 1-4 show the working function for the lifting device that outbalances a weight
Figures 5-6 show the lifting device from the front and from the side
Details on the drawing figures 5-6
1 Power plant e g electromagnet, electromagnetic field, pneumatic- hydraulic cylinder, mechanical arm and so on
2 Slide valve
3 Venting hole in the cylinder axis
4 Cord
5 Cylinder axis
6 Slide with wheel
7 Fore cylinder chamber
8 Balance weight
9 Head cylinder
10 Rear cylinder chamber
11 Proportional valve
12 Wheel I
13 Wheel II
14 Fastening point of cord
15 Lifting tool
Head components of the device
A Cylinder (9)
B A guide (6) with balance weight is mounted on the cylinder
C Proportional valve (11)
D Cord (4) with wheels (12 + 13)
Function description
The invention has two different force suppliers
A Counterweight that outbalances the lifting tool F2
B Force from the cylinder that outbalances the lifted detail F1
The manipulator has two working modes
1) When moving the manipulator without load but with a lifting tool F2
2) When moving the manipulator with load F1 + F2
Function according to drawing figures 1-4
The drawing shows a cylinder axis (5) that is drawn out in its head position
A guide is mounted on the cylinder axis, that is able to run up and down
On the guide there is a counterweight (8)
One or several wheels (12 + 13) are mounted, depended on the transmission desired The cord (4) has been drawn through the wheels and attached to its end in point 14 The other end of the cord has been connected to the lifting tool (15) When the lifting tool moves into a vertical level it will consequently be outbalanced
Lift of a detail
The cylinder axis is in its head position, as there will be a common pressure on both cylinder chambers (7 + 10) The space in the front chamber (7) is somewhat smaller owing to the sur ace of the axis, that will cause the axis to be fully projected When there is a signal, the pressure in the lower cylinder chamber (10) will slowly fall The axis (5) will consequently move down The lower part of the slide valve (2) meets the
upper part of the slide (6) The slide (6) will be pressed down and the load (15) will be lifted The pressure in the cylinder chamber (7 and 10 respectively) is constant, which results in the lifting force being constant in the whole operating range
Drawing figures 1-4 show the working function in each routine
Fig 1 Detail term
Fig 2 The slide (6) can move up and down towards the cylinder axis without any effect when the axis is fully suspended This function is normally used when the lifting tool moves without any load
Fig 3 Signal has been given that a lift of a detail shall start Power plant (1) pushes the slide valve (2) down, which results in opening of the same Exhaustion of the cylinder chamber (10) will start parallel with the exhaustion through the valve of the cylinder chamber (10)
Fig 4 When the slide valve (2) meets the slide (6), the slide valve will be pushed up and closed The exhaustion through the cylinder axis will cease The exhaustion through the cylinder chamber (10) continues till there is a pressure desired
Claims
1. A device to be used in order to select two different lifting operations in a lifting manipulator:
1) lift of a lifting tool, 2) lift of a lifting tool incl. a load. These two operations shall be controlled by the motion speed of your hand within the operating range characterized in that a counterweight (8) outbalances a lifting tool (15) that is mounted in the end of a lifting cord. The cord is drawn through one or several wheels (12 + 13) depending on the exchange desired. When lifting a lifting tool incl. a load, a cylinder with an arranged piston and cylinder axis will be activated. The cylinder axis will actuate on the cylinder axis a movable slide (6) with an arranged wheel and the counterweight (8) and applies a force.
2. Device within the patent claim l characterized in that a cylinder (5) during the lift of a lifting tool only has a common pressure on its two chambers (7 + 10), which are divided by the piston. When lifting the lifting tool incl. a load the rear chamber will be exhausted to the pressure desired.
3. Device within the patent claim l characterized in that the cylinder axis (5) is hollow and provided with a valve (2), that will start an exhaustion when pressed down, which results in the rear cylinder chamber being emptied and the cylinder axis being moved into the cylindnc block
When the valve (2) meets the slide (6) it will be pressed upwards and the exhaustion will stop The movement of the cylinder axis will stop
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU31113/97A AU3111397A (en) | 1996-05-31 | 1997-05-28 | Device for weight outbalancing in connection with lifts |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9602158A SE9602158L (en) | 1996-05-31 | 1996-05-31 | Device for weight balancing in connection with lifting |
| SE9602158-9 | 1996-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998015487A1 true WO1998015487A1 (en) | 1998-04-16 |
Family
ID=20402829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE1997/000912 Ceased WO1998015487A1 (en) | 1996-05-31 | 1997-05-28 | Device for weight outbalancing in connection with lifts |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU3111397A (en) |
| SE (1) | SE9602158L (en) |
| WO (1) | WO1998015487A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002064487A1 (en) * | 2001-02-13 | 2002-08-22 | Delaney Machinerie Inc. | System for lifting and moving an object |
| US6845872B2 (en) | 2001-02-13 | 2005-01-25 | Delaney Francois | System for lifting and moving an object |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259351A (en) * | 1965-03-08 | 1966-07-05 | Conco Engineering Works Inc | Loading balancer assembly |
| US3259352A (en) * | 1965-06-22 | 1966-07-05 | Conco Engineering Works Inc | Loading balancer assembly |
| US3615067A (en) * | 1969-03-19 | 1971-10-26 | Conco Inc | Load balancer |
| US3721416A (en) * | 1970-12-04 | 1973-03-20 | Conco Inc | Loading balancer |
-
1996
- 1996-05-31 SE SE9602158A patent/SE9602158L/en not_active IP Right Cessation
-
1997
- 1997-05-28 WO PCT/SE1997/000912 patent/WO1998015487A1/en not_active Ceased
- 1997-05-28 AU AU31113/97A patent/AU3111397A/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3259351A (en) * | 1965-03-08 | 1966-07-05 | Conco Engineering Works Inc | Loading balancer assembly |
| US3259352A (en) * | 1965-06-22 | 1966-07-05 | Conco Engineering Works Inc | Loading balancer assembly |
| US3615067A (en) * | 1969-03-19 | 1971-10-26 | Conco Inc | Load balancer |
| US3721416A (en) * | 1970-12-04 | 1973-03-20 | Conco Inc | Loading balancer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002064487A1 (en) * | 2001-02-13 | 2002-08-22 | Delaney Machinerie Inc. | System for lifting and moving an object |
| US6845872B2 (en) | 2001-02-13 | 2005-01-25 | Delaney Francois | System for lifting and moving an object |
| CN100339292C (en) * | 2001-02-13 | 2007-09-26 | 德莱尼机械公司 | System for lifting and moving object |
Also Published As
| Publication number | Publication date |
|---|---|
| AU3111397A (en) | 1998-05-05 |
| SE505909C2 (en) | 1997-10-20 |
| SE9602158D0 (en) | 1996-05-31 |
| SE9602158L (en) | 1997-10-20 |
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