Hydraulic Rope Tube and Pipe Bender

Abstract

A device used to bend metal tube and pipe past 180 degrees in one stroke of a cylinder with rope or cable. The hydraulic tube and pipe bender comprises a main body having two openings on each end with a hydraulic cylinder in the middle. A swivel device is attached at one end of the cylinder to control the force of each rope or cable and acts as a safety device always keeping one rope or cable attached. A magnet is used to place over a degree indicator to get the exact bend you want in a tube by means of a limit switch that triggers when the magnet trips it. Plates are parallel with each other on top of the main tube to hold the dies. Two leverage wheels are used to hold the ropes or cables to get the designed force to bend the tube or pipe.

Claims

1. A device for bending metal tube or pipe whereas the device has a main body with a hydraulic cylinder in the middle with one or more ropes, cables or chains used to pull and bend the tube or pipe, the device comprising: A main body having two openings on each end and two openings on top for one or more rope, cable, or chains to go through with a body having at least one end that holds the cylinder by means of a pin.

2. The device of claim one wherein the main body holding a hydraulic cylinder has a counter balance swivel attachment at the end of the hydraulic ram connected with a pin to the ram and two pins on the outer ends to connect the ropes, cable or chain to keep even pressure on each of them.

3. A device that has one or more leverage wheels designed with a slot in the center to hold one or more ropes, cables or chains.

4. A device that uses one or more leverage wheels with one or two connection points to fasten a rope or cable.

5. A device that uses one or more idler pulleys to position one or two ropes or cables between a hydraulic ram and one or two leverage wheels that turn a die.

6. A device that uses one or more leverage wheels that hold one or more ropes, cables or chains to turn a die over 180 degrees without stopping.

7. A device as in claim 2 which has a counter balance swivel attachment at the end of the hydraulic ram which is used as a safety device to catch and stop the device by using two ropes or cables rather than one.

8. A device as in claim 3 with one or two leverage wheels used to pull more or less weight depending on the radius or diameter of the leverage wheels or wheel designed also to pull the weight faster or slower depending on the radius or diameter.

9. A device that uses a hydraulic cylinder that pushes on one or more ropes which in turn makes the rope, ropes or cable pull on the leverage wheels it was designed for.

10. A device that has two vertical plates on top of a tube body with holes in them to hold two metal dies.

11. A device that bends tube and pipe past 180 degrees with a hydraulic cylinder all in one outward stroke of the cylinder comprising of: at least one rope; at least one hydraulic pump; a hollow tube that holds the hydraulic cylinder attached at one end; a counter balance swivel attachment at the end of the hydraulic ram that holds two or more ropes for safety and even pressure; one or more vertical plates above the main body to hold dies with different sizes; a metal degree indicator to place a magnet for a limit switch to stop at; a limit switch that is connected to a hydraulic pump to kill the power; a 12 volt or 24 volt battery to power the hydraulic pump; A stand to hold the tube and pipe bender also to hold the battery and pump;

12. A device that can automatically stop by means of a magnet placed on a metal degree indicator whereas the magnet triggers a limit switch.

13. A device with a main tube that has two holes parallel to each other to insert rope or cable through to be able to wrap around and attach to two leverage wheels on one end and a hydraulic ram with a counter balance swivel on the other end along with an idler pulley in the middle.

14. A mobile device that runs of battery power that can bend tube and pipe over 180 degrees all in one stroke of a hydraulic cylinder with a rope cable or chain.

15. A device to bend tube that has one or more leverage wheels with one or more openings to insert pins for rotation or attachment.

16. A device used to bend tube and pipe at different speeds by using one or more batteries together or by making a smaller diameter leverage wheel.

17. A device that uses an Idler pully between a hydraulic ram and one or more leverage wheels.

18. A device that has a hydraulic cylinder that pushes its ram on a rope, cable or chain that has an idler pulley positioned in line to make the hydraulic cylinder rise completely horizontal when tension is applied.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0008] FIG. 1 is a side perspective view illustrating a tube and pipe bender device showing the complete bender constructed in accordance with the present invention for use with bending metal tubing and piping.

[0009] FIG. 2 is a side perspective view illustrating a tube and pipe bender device without showing the bottom half that has the bender stand, hydraulic pump or battery, constructed in accordance with the present invention for use with bending metal tubing and piping.

[0010] FIG. 3 is a side perspective view illustrating a tube and pipe bender device without showing the bottom half that has the bender stand, hydraulic pump or battery. The side is cut out to show the hydraulic pump and rope roller also one leverage wheel is removed to show the top die and bottom die, constructed in accordance with the present invention for use with bending metal tubing and piping,

[0011] FIG. 4 is a side view illustrating a tube and pipe bender device without showing the bottom half that has the bender stand, hydraulic pump or battery, constructed in accordance with the present invention for use with bending metal tubing and piping.

[0012] FIG. 5 is a top view illustrating a tube and pipe bender device without showing the bottom half that has the bender stand, hydraulic pump or battery, constructed in accordance with the present invention for use with bending metal tubing and piping.

[0013] FIG. 6 is a front perspective view illustrating a tube and pipe bender device without showing the bottom half that has the bender stand, hydraulic pump or battery, constructed in accordance with the present invention for use with bending metal tubing and piping.

DETAILED DESCRIPTION OF THE INVENTION

[0014] As illustrated in FIGS. 1-6 the present invention is a tube and pipe bender indicated generally at 10 for use to bend metal tube and pipe and or solid bar. There is a main body 12 that holds the hydraulic cylinder 60 by means of a pin 64 that goes through a cylinder attachment 63. The metal tube 34 is placed in between the top die 48 and the bottom die 50 and locked in place with a U strap 52 and a pin 54. The tube and pipe bender device 10 can also be used to bend square tube, solid bar, round bar, or rectangular bar. Once the tube 34 is inserted into the top die 48 and bottom die 50 and locked into the top die 48 with the U strap 52 and pin 54 that goes through an opening 42 in the leverage wheels 16 a magnet 5 is placed on the degree indicator 6 to the exact degree you want to bend. The hydraulic controller 6 is pressed, then the hydraulic pump 2 is activated which extends the hydraulic ram 61 which is attached to a counter balance swivel 22 at the end. The counter balance swivel 22 connects two ropes or cables 28 with two pins 24 and keeps even pressure on them. As the two ropes or cables 28 are being pulled they run along the idler pully 58 which is connected to the main body 12 and a inside plate 62 by a pin 32 that goes though them. The rope cable or chain 28 then goes through one or two holes 15 then wrap around one or more leverage wheels 16 then are connected by two pins 26. The wheel roller 58 is positioned in place to roll with the rope 28 and to keep the hydraulic cylinder 60 pushing in a horizontal direction, also it keeps the rope in the center of the two openings 15 and in line with the two leverage wheels 16. As the two leverage wheels 16 turn counter clockwise if viewing from FIG. 1, it will turn the top die 48 counter clockwise as well, if viewing from FIG. 1 The top die 48 turns along with the leverage wheels 16 with a pin 38 that goes through opening 40, the leverage wheel 16 and the top die 48. The tube 34 is then pulled into both the top die 48 and bottom die 50 while it is attached to the top die 48 with the U strap 52. It then begins making the bend in the tube 34. The bend degree in the tube 34 you choose can be manually stopped by un pressing the hydraulic controller button 6 or continue until it automatically stops when the magnet 5 reaches the limit switch stick 3. The limit switch stick 3 then cuts off the power going to the hydraulic pump 2, which finishes the bend in the tube 34 to the degree you want.