US3427837A - Solenoid-actuated air cylinder - Google Patents
Solenoid-actuated air cylinder Download PDFInfo
- Publication number
- US3427837A US3427837A US548247A US3427837DA US3427837A US 3427837 A US3427837 A US 3427837A US 548247 A US548247 A US 548247A US 3427837D A US3427837D A US 3427837DA US 3427837 A US3427837 A US 3427837A
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- Prior art keywords
- solenoid
- air cylinder
- exhaust
- piston
- switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/042—Hand tools for crimping
- H01R43/0427—Hand tools for crimping fluid actuated hand crimping tools
Definitions
- the present invention relates to a solenoid-actuated air cylinder and more particularly to a solenoid-actuated air cylinder having a hold-off mechanism for the prevention of recycling prior to the air cylinders pistons full return stroke.
- a solenoid-actuated valve applies gas under pressure to an air cylinder mechanism for the actuation of the air cylinders piston.
- the solenoid is actuated by applying electrical power to it from any convenient source.
- a switch is opened which deactivates the solenoid, closing the pressurized gas supply and opening and allowing a discharge through an exhaust port.
- Another switch is coupled to the exhaust port, holding the solenoid in an inactuated position during the exhaust cycle of the cylinder. This prevents any inadvertent recycling by the operator before the air cylinder has had a chance to completely exhaust.
- the second switch automatically closes, allowing the solenoid to be actuated from its initial source.
- One extremely useful embodiment of the present invention lies in its use as a pressing machine.
- the solenoid is initially actuated by placing the work to be pressed within a pair of crimping jaws which are coupled to the piston of the air cylinder.
- a switch can be conveniently located for closing by the work to be pressed which will insure proper positioning of the work pnior to the actuation of the solenoid and operation of the air cylinder.
- An object of the present invention is the provision of a solenoid-actuated air cylinder which cannot be recycled until it is completely exhausted.
- Another object is to provide a pressing machine which cannot cycle unless the work is properly positioned within the pressing jaws.
- a further object of the invention is the provision of a' pressing machine which is inexpensive and simple to manufacture, and requires a of maintenance and adjustment.
- Still another object is to provide a pressing machine which is light in weight and requires a minimum of space.
- Yet another object of the invention is the provision of another switch in series- 3,427,837 Patented Feb. 18, 1969 a pressing machine which requires a minimum of skill to correctly operate.
- FIG. 1 is a pictorial representation of the preferred embodiment of the present invention.
- FIG. 2 is a schematic representation parts of the embodiment of FIG. 1;
- FIG. 3 is a schematic representation of the electrical circuit of the embodiment of FIGS. 1 and 2.
- a mounting bracket 11 carries air cylinder 13. Air cylinder 13 is coupled to crimping jaws 16 and 17. Solenoid-actuated valve 18 is connected to pressurized gas supply hose 19. An operators hand 22 is shown holding two pairs of wires 23 and 24 with splice caps 26 and 27 on the ends thereof entering into the space between jaws 16 and 17.
- a solenoid 'actuated valve 18 is shown schematically with solenoid 18A external thereto.
- Exhaust port 26 is mechanically coupled via cap insert 30 to switch 27 having a stationary contact 28 and a movable contact 29.
- Solenoid-actuated valve 18 couples intake port 20 to air cylinder 13 in the position shown in solid lines and exhaust port 26 in the position shown in dotted lines.
- Piston 31 within air cylinder 13 has push rod 32 and actuating rod 33 coupled to one end thereof.
- Actuating rod 33 is in slidable contact with rollers 25 which are rotatably carried by jaw arms 16A and 17A.
- Push rod 32 is physically positioned for opening contact 34 when piston 13 is at the end of its stroke.
- contact 34- is making contact with stationary contact 36 of switch 37.
- Switches 38 and 39 are positioned in the rear of the space defined by jaws 16 and 17. Switches 38 and 39 are connected in series with solenoid winding 18A and battery 41.
- battery 41 is connected in series with solenoid winding 18A and switches 27, 37, 38 and 39.
- switches 37 and 27 are quiescently closed and switches 38 and 39 are quiescently open as shown.
- pieces to be pressed or crimped such as splicing caps 26 and 27 as shown in FIG. 1 are inserted between jaws 16 and 17, they will abut switches 38 and 39, close their contacts, and actuate solenoid 18A. It can he seen that only if both splicing caps are fully inserted will both switches 38 and 39 be closed, which is necessary for actuation of solenoid 18A, since they are in series with solenoid 18A and battery 41.
- solenoid 18A will then be iacutated by current from battery 41 to open intake port 20 which supplies pressurized gas to piston 31. Piston 31 will then be forced downward, closing jaws 16 and 17. At the end of the piston stroke, push rod 32 will open switch 37, in-activating solenoid 18A. When this happens, intake port 20 is closed, allowing cylinder 13 to exhaust through exhaust port 26.
- Exhaust port 26 is mechanically coupled to contact 29 of switch 27 by cap insert 30, opening switch 27 and holding solenoid 18A in an inactivated condition during the return travel of piston 31. This is necessary since once piston 31 begins its return stroke, switch 37 will close again, which would result in a recycling of air cylinder 13 since solenoid 18A would be reactivated. Hence, switch 27 serves to hold solenoid 18A in an inactivated condition during the return stroke of piston 31, i.e., as long as the air cylinder is being exhausted. This will give the operator sufficient time to remove the work before switch 27 is closed a-gain, which will result in switches 38 and 39 being opened, and the equipment is ready for the next cycle of operation.
- a solenoid-actuated air cylinder comprising:
- a solenoid actuatcd valve coupled to said electrical power source, said solenoid-actuated valve connecting said compressed gas port with a pressurized gas supply for supplying a pressurized gas to said compressed gas port and actuating said piston;
- circuit breaking means mechanically coupled to said piston for interrupting electrical current flow between said solenoid and said electrical power source
- coupling means in operable relationship with said exhaust means, said coupling means coupling said exhaust means and said second circuit breaking means for interrupting electrical current flow between said solenoid and said electrical power source during an exhaust through said exhaust valve.
- a pressing machine comprising:
- an air cylinder having a piston therein and a compressed gas port, said piston being mechanically coupled to said pair of pressing jaws and operable to close said pressing jaws upon actuation thereof;
- actuating means mounted in proximity to said pressing jaws and responsive to proper alignment of work to be pressed between said pressing jaws for actuating said air cylinder piston;
- said actuating means comprising at least one electrical switch, said electrical switch connecting an electrical power source to a solenoid-actuated valve, said solenoid-actuated valve connecting said compressed gas port with a pressurized gas supply for supplying a pressurized gas to said compressed gas port and actuating said piston.
- circuit breaking means mechanically coupled to said piston for interrupting electrical current flow between said solenoid and said electrical power source.
- said solenoid-actuated valve includes an exhaust means
- circuit breaking means in serial relationship with said at least one electrical switch
- coupling means in operable relationship with said exhaust means, said coupling means coupling said exhaust valve and said circuit breaking means for interrupting electrical current flow between said solenoid and said electrical power source during an exhaust through said exhaust valve.
- a first circuit breaking means mechanically coupled to said piston for interrupting electrical current flow between said solenoid and said electrical power source
- coupling means in operable relationship with said exhaust means, said coupling means coupling said exhaust means and said second circuit breaking means for interrupting electrical current flow between said solenoid and said electrical power source during an exhaust through said exhaust means.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
Feb. 18, 1969 FAULCQNER 3,427,837
SOLENOID-ACTUATED AIR CYLINDER File d May 6, 1966 I N VEN TOR. HARRY A. FAULCOA/ER BY United States Patent 5 Claims ABSTRACT OF THE DISCLOSURE A solenoid-actuated air cylinder coupled to a pair of crimping jaws for crimping work placed therein having a solenoid-actuated valve coupling air under pressure to the air cylinder mechanism for actuating the air cylinders piston; the solenoid being actuated by applying electrical power to it; a switch in series with the solenoid mechanically coupled to the piston for opening at the top of the pistons stroke, deactivating the solenoid and thereby closing the pressurized gas supply and opening and allowing a discharge through an exhaust port; a second switch coupled to the exhaust port in series with the first switch for holding the' solenoid in an inactuated position during the exhaust cycle of the cylinder; with the first and second switches for insuring proper positioning of the work prior to the actuation of the solenoid in operation of the air cylinder.
The present invention relates to a solenoid-actuated air cylinder and more particularly to a solenoid-actuated air cylinder having a hold-off mechanism for the prevention of recycling prior to the air cylinders pistons full return stroke.
According to the invention, a solenoid-actuated valve applies gas under pressure to an air cylinder mechanism for the actuation of the air cylinders piston. The solenoid is actuated by applying electrical power to it from any convenient source. At the top of the pistons stroke, a switch is opened which deactivates the solenoid, closing the pressurized gas supply and opening and allowing a discharge through an exhaust port. Another switch is coupled to the exhaust port, holding the solenoid in an inactuated position during the exhaust cycle of the cylinder. This prevents any inadvertent recycling by the operator before the air cylinder has had a chance to completely exhaust. After the exhaust cycle is completed, the second switch automatically closes, allowing the solenoid to be actuated from its initial source.
One extremely useful embodiment of the present invention lies in its use as a pressing machine. In this instance, the solenoid is initially actuated by placing the work to be pressed within a pair of crimping jaws which are coupled to the piston of the air cylinder. A switch can be conveniently located for closing by the work to be pressed which will insure proper positioning of the work pnior to the actuation of the solenoid and operation of the air cylinder.
An object of the present invention is the provision of a solenoid-actuated air cylinder which cannot be recycled until it is completely exhausted.
Another object is to provide a pressing machine which cannot cycle unless the work is properly positioned within the pressing jaws.
A further object of the invention is the provision of a' pressing machine which is inexpensive and simple to manufacture, and requires a of maintenance and adjustment.
Still another object is to provide a pressing machine which is light in weight and requires a minimum of space. Yet another object of the invention is the provision of another switch in series- 3,427,837 Patented Feb. 18, 1969 a pressing machine which requires a minimum of skill to correctly operate.
Other objects and many of the attendant advantages of this invention will he readily appreciated as the same becomes better understood 'by reference to the following detailed description when considered in connection with the accompanying drawings in which like reference numerals designate like parts throughout the figures thereof and wherein:
FIG. 1 is a pictorial representation of the preferred embodiment of the present invention.
FIG. 2 is a schematic representation parts of the embodiment of FIG. 1; and
FIG. 3 is a schematic representation of the electrical circuit of the embodiment of FIGS. 1 and 2.
Referring to FIG. 1, a mounting bracket 11 carries air cylinder 13. Air cylinder 13 is coupled to crimping jaws 16 and 17. Solenoid-actuated valve 18 is connected to pressurized gas supply hose 19. An operators hand 22 is shown holding two pairs of wires 23 and 24 with splice caps 26 and 27 on the ends thereof entering into the space between jaws 16 and 17.
Referring to FIG. 2, a solenoid 'actuated valve 18 is shown schematically with solenoid 18A external thereto. Exhaust port 26 is mechanically coupled via cap insert 30 to switch 27 having a stationary contact 28 and a movable contact 29. Solenoid-actuated valve 18 couples intake port 20 to air cylinder 13 in the position shown in solid lines and exhaust port 26 in the position shown in dotted lines. Piston 31 within air cylinder 13 has push rod 32 and actuating rod 33 coupled to one end thereof. Actuating rod 33 is in slidable contact with rollers 25 which are rotatably carried by jaw arms 16A and 17A. Push rod 32 is physically positioned for opening contact 34 when piston 13 is at the end of its stroke. Quiescently, contact 34- is making contact with stationary contact 36 of switch 37. Switches 38 and 39 are positioned in the rear of the space defined by jaws 16 and 17. Switches 38 and 39 are connected in series with solenoid winding 18A and battery 41.
Referring to FIG. 3, battery 41 is connected in series with solenoid winding 18A and switches 27, 37, 38 and 39.
of the working Operation Referring now to FIGS. 1, 2 and 3, switches 37 and 27 are quiescently closed and switches 38 and 39 are quiescently open as shown. When pieces to be pressed or crimped, such as splicing caps 26 and 27 as shown in FIG. 1, are inserted between jaws 16 and 17, they will abut switches 38 and 39, close their contacts, and actuate solenoid 18A. It can he seen that only if both splicing caps are fully inserted will both switches 38 and 39 be closed, which is necessary for actuation of solenoid 18A, since they are in series with solenoid 18A and battery 41.
Assuming that switches 38 and 39 are closed by inserted work, solenoid 18A will then be iacutated by current from battery 41 to open intake port 20 which supplies pressurized gas to piston 31. Piston 31 will then be forced downward, closing jaws 16 and 17. At the end of the piston stroke, push rod 32 will open switch 37, in-activating solenoid 18A. When this happens, intake port 20 is closed, allowing cylinder 13 to exhaust through exhaust port 26.
It should be understood of course that the foregoing disclosure relates to only a preferred embodiment of the invention and that it is intended to cover all changes and modifications of the example of the invention herein chosen for the purposes of the disclosure which do not constitute departures from the spirit and scope of the invention.
What is claimed is:
1. A solenoid-actuated air cylinder comprising:
an air cylinder having a piston therein and a compressed gas port;
an electrical power source;
a solenoid actuatcd valve coupled to said electrical power source, said solenoid-actuated valve connecting said compressed gas port with a pressurized gas supply for supplying a pressurized gas to said compressed gas port and actuating said piston;
circuit breaking means mechanically coupled to said piston for interrupting electrical current flow between said solenoid and said electrical power source;
a second circuit breaking means in serial relationship with said electrical power source and said solenoid; and
coupling means in operable relationship with said exhaust means, said coupling means coupling said exhaust means and said second circuit breaking means for interrupting electrical current flow between said solenoid and said electrical power source during an exhaust through said exhaust valve.
2. A pressing machine comprising:
a pair of pressing jaws, at least one of said pair of pressing jaws being movable;
an air cylinder having a piston therein and a compressed gas port, said piston being mechanically coupled to said pair of pressing jaws and operable to close said pressing jaws upon actuation thereof;
actuating means mounted in proximity to said pressing jaws and responsive to proper alignment of work to be pressed between said pressing jaws for actuating said air cylinder piston;
said actuating means comprising at least one electrical switch, said electrical switch connecting an electrical power source to a solenoid-actuated valve, said solenoid-actuated valve connecting said compressed gas port with a pressurized gas supply for supplying a pressurized gas to said compressed gas port and actuating said piston.
3. The pressing machine of claim 2 and further including:
circuit breaking means mechanically coupled to said piston for interrupting electrical current flow between said solenoid and said electrical power source.
4. The pressing machine of claim 2 wherein:
said solenoid-actuated valve includes an exhaust means;
a circuit breaking means in serial relationship with said at least one electrical switch; and
coupling means in operable relationship with said exhaust means, said coupling means coupling said exhaust valve and said circuit breaking means for interrupting electrical current flow between said solenoid and said electrical power source during an exhaust through said exhaust valve.
5. The pressing machine of claim 2 and further including:
a first circuit breaking means mechanically coupled to said piston for interrupting electrical current flow between said solenoid and said electrical power source;
an exhaust means in said solenoid-acutated valve;
a second circuit breaking means in serial relationship with said at least one electrical switch; and
coupling means in operable relationship with said exhaust means, said coupling means coupling said exhaust means and said second circuit breaking means for interrupting electrical current flow between said solenoid and said electrical power source during an exhaust through said exhaust means.
References Cited UNITED STATES PATENTS 513,601 1/1894 Teal 91-459 1,582,217 4/1926 Henry 10l3 2,396,562 3/1946 Forss 72-407 2,766,631 10/1956 Van Sittert 72-453 2,825,353 3/1958 Voytech 91-459 2,978,872 4/1961 Curran 9l459 2,989,948 6/1961 Forrester 91-459 3,026,520 3/ 1962 Albrecht 72-407 3,037,208 6/1962 Haberstump 72-407 RICHARD J. HERBST, Primary Examiner.
G. P. CROSBY, Assistant Examiner.
US. Cl. X.R.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54824766A | 1966-05-06 | 1966-05-06 |
Publications (1)
Publication Number | Publication Date |
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US3427837A true US3427837A (en) | 1969-02-18 |
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Application Number | Title | Priority Date | Filing Date |
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US548247A Expired - Lifetime US3427837A (en) | 1966-05-06 | 1966-05-06 | Solenoid-actuated air cylinder |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3772907A (en) * | 1972-02-22 | 1973-11-20 | Amp Inc | Crimping tool having an improved valve control mechanism |
US3972218A (en) * | 1974-12-23 | 1976-08-03 | Pawloski James A | Fluid actuated tool |
US4227395A (en) * | 1979-03-26 | 1980-10-14 | The Babcock & Wilcox Company | Tube crimping device |
US4417460A (en) * | 1981-03-09 | 1983-11-29 | Moriconi Dario J | Hypodermic syringe destruction device |
US20060000072A1 (en) * | 2004-07-02 | 2006-01-05 | Egbert Frenken | Pair of pressing jaws for hydraulic or electric pressing tools, and insulating covering for a pressing jaw |
US20060272381A1 (en) * | 2005-06-03 | 2006-12-07 | Fci Americas Technology, Inc. | Hand-held, portable, battery-powered hydraulic tool |
US20070180887A1 (en) * | 2002-04-10 | 2007-08-09 | Egbert Frenken | Electrohydraulic pressing device and method for operating the same |
US20080016939A1 (en) * | 2004-07-02 | 2008-01-24 | Egbert Frenken | Pair of pressing jaws for hydraulic or electric pressing tools |
US20100236061A1 (en) * | 2009-03-17 | 2010-09-23 | Mobley Stephen J | Snowmobile track clipping tool |
US20110113851A1 (en) * | 2006-09-07 | 2011-05-19 | Egbert Frenken | Pair of pressing jaws for hydraulic or electric pressing tool |
US20180229316A1 (en) * | 2017-02-12 | 2018-08-16 | Verco Decking Inc. | Decking tool |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3772907A (en) * | 1972-02-22 | 1973-11-20 | Amp Inc | Crimping tool having an improved valve control mechanism |
US3972218A (en) * | 1974-12-23 | 1976-08-03 | Pawloski James A | Fluid actuated tool |
US4227395A (en) * | 1979-03-26 | 1980-10-14 | The Babcock & Wilcox Company | Tube crimping device |
US4417460A (en) * | 1981-03-09 | 1983-11-29 | Moriconi Dario J | Hypodermic syringe destruction device |
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US7421877B2 (en) | 2002-04-10 | 2008-09-09 | Gustav Klauke Gmbh | Electrohydraulic pressing device and method for operating the same |
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US20070214918A1 (en) * | 2004-07-02 | 2007-09-20 | Egbert Frenken | Pair of pressing jaws for hydraulic or electric pressing tools |
US7464578B2 (en) | 2005-06-03 | 2008-12-16 | Fci Americas Technology, Inc. | Hand-held, portable, battery-powered hydraulic tool |
US20060272381A1 (en) * | 2005-06-03 | 2006-12-07 | Fci Americas Technology, Inc. | Hand-held, portable, battery-powered hydraulic tool |
US20110113851A1 (en) * | 2006-09-07 | 2011-05-19 | Egbert Frenken | Pair of pressing jaws for hydraulic or electric pressing tool |
US8336362B2 (en) | 2006-09-07 | 2012-12-25 | Gustav Klauke Gmbh | Pair of pressing jaws for hydraulic or electric pressing tool |
US20100236061A1 (en) * | 2009-03-17 | 2010-09-23 | Mobley Stephen J | Snowmobile track clipping tool |
US8191223B2 (en) * | 2009-03-17 | 2012-06-05 | Mobley Stephen J | Snowmobile track clipping tool |
US20180229316A1 (en) * | 2017-02-12 | 2018-08-16 | Verco Decking Inc. | Decking tool |
US10933478B2 (en) * | 2017-02-12 | 2021-03-02 | Verco Decking Inc. | Decking tool |
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