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US3365975A - Joy stick mechanism - Google Patents

Joy stick mechanism
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Publication number
US3365975A
US3365975AUS513128AUS51312865AUS3365975AUS 3365975 AUS3365975 AUS 3365975AUS 513128 AUS513128 AUS 513128AUS 51312865 AUS51312865 AUS 51312865AUS 3365975 AUS3365975 AUS 3365975A
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Prior art keywords
joy stick
shaft
housing
gear
stick mechanism
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US513128A
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Merwin L Hathaway
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United States Department of the Army
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Army Usa
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Jan. 30, 1968 M. HATHAWAY JOY STICK MECHANISM 2 Sheets-Sheet 1 Filed Dec. 10, 1965 Merwin L. Hathaway,
INVENTOR.
Jan. 30, 1968 M. HATHAWAY JOY STICK MECHANISM 2 Sheets-Sheet 2 Filed Dec. 10, 1965 Merwin L. Hathaway,
VENTOR United States Patent 3,365,975 JOY STICK MECHANISM Merwin L. Hathaway, Lexington, Mass, assignor, by mesne assignments, to the United Statesof America as represented by the Secretary of the Army Filed Dec. 10, 1965, Ser. No. 513,128 4 Claims. (Cl. 74-471) This invention relates to a joy stick mechanism that has .a universally mounted joy stick with electrical means connected to the mounting means for the joy stick so as to express an instantaneous position of the joy stick in X and Y electrical coordinates.
In a radar system, the need for a device which is capable of directing movement of a display hook or pip on the face of a plan position indicator and for blanking out the display hook or pip when desired has arisen.
Therefore, it is an object of this invention to provide a joy stick mechanism for performing the functions set forth above.
Another object of this invention is to provide a friction braking means for uniformly resisting movement of a joy stick in any direction.
A further object of this invention is to provide a connection between the joy stick and Y axis shaft that prevents backlash.
A still further object of this invention is to provide a joy stick mechanism that is simple in design without sacrifice of rigidity and that has few parts that may be made small in size and from light weight materials.
In accordance with this invention, a joy stick mechanism is provided that has a housing with a joy stick so pivoted therein as to be capable of generating a cone of varying magnitude and with electrical means so connected to the pivotal mounting means for the joy stick as to be capable of expressing any instantaneous position of the joy stick in X and Y electrical coordinates.
In the accompanying drawing forming a part of this specification, and in which like numerals are employed to designate corresponding parts throughout the same:
FIGURE 1 is a perspective view of a joy stick mechanism according to this invention;
FIGURE 2 is a perspective view looking from the bottom of the joy stick mechanism of FIG. 1, with the top and bottom covers removed;
FIGURE 3 is a perspective view looking from the top of the joy stick mechanism of FIG. 1 with the top and bottom covers removed; and
FIGURE 4 is a sectional view taken on line 4-4 of FIG. 2 with the top and bottom covers thereon and showing the joy stick in a vertical position.
The invention may be better understood by referring to FIGURE 1 wherein, numeral 1 designates a housing that has atop cover 3 secured thereto byscrews 5 and a bottom cover 7 secured thereto by screws (not shown). A joy stick projects through opening 11 (see FIG. 4) intop cover 3, and aboot 13 is connected at one end to upwardly projecting handle portion 14 (see FIG. 4) of the joy stick and at the other end to flange means oncover 3 to seal opening 11 from foreign material and debris.
Variable resistors 15 and 17 (see FIG. 1) have suitable electrical lead connecting means 19 and are mounted byclamps 21 on two perpendicular sides of housing 1.Variable resistor 15 has a shaft 23 (see FIG. 2) that extends through the housing wall to the interior of the housing, andgear 25 is secured toshaft 23 for turning movement ofshaft 23 to adjustvariable resistor 15.
Variable resistor 17 has ashaft 27 that extends through the housing wall to the interior of the housing, andgear 29 is secured toshaft 27 for turning movement ofshaft 27 and adjustment ofvariable resistor 17.
3,355,975 Patented Jan. 30, 1968 "ice AnX axis shaft 31 is pivotably mounted in housing 1 bybearings 33, 35, andsplit rings 37, 39 (see FIG. 4). Segmentedgear 41 is secured toshaft 31 by setscrew 43 and is in meshing engagement withgear 25 to adjustvariable resistor 15 in accordance with rotation ofshaft 31.A Y axis shaft 45 is pivota-bly mounted in housing 1 by bearings and split rings like those forshaft 31. Segmentedgear 47 is secured toshaft 45 near one end thereof by setscrew 49. Segmentedgear 47 meshes withgear 29 to adjustvariable resistor 17 in accordance with rotation ofshaft 45.
Shaft 31 is located on an axis that intersects and is perpendicular to the axis ofshaft 45. A third shaft 51 is pivotably mounted at a center position ofshaft 31 on bearings that are similar to those forshafts 31 and 45. Third shaft 51 has an axis that intersects and is perpendicular to the axis ofshaft 31, and is co-axially alignable with the axis ofshaft 45. The joy stick is connected in a conventional manner to shaft 51 to define upwardlyprojecting handle portion 14 and downwardly projectingactuator portion 57.Actuator portion 57 hasball type bearings 59, 61 (see FIG. 4) mounted in tandem thereon for contactingrails 63, 65 on opposite sides ofslot 67.Slot 67 is formed inyoke 69 ofY axis shaft 45.Slot 67 is so shaped that the center of the slot describes an arc of a circle which has its center at pivot point 71 (see FIG. 4) of the joy stick. By providingyoke 69 withrails 63, 65 and the joy stick withbearings 59, 61, backlash between the joy stick andY axis shaft 45 is prevented.
Afriction brake body 73 is mounted on the lower end ofactuator portion 57 by set screws 75 (see FIG. 2). Abore 77 inbody 73 receives spring '79 and shoe orplunger 81 which is preferably made of plastic such as Teflon.Spring 79 biases plunger 81 outwardly ofbody 73 and into frictional engagement withspherical surface 83 on bottom cover 7 to uniformly resist movement of the joy stick.
A micro switch 85 (see FIG. 2) is secured tobody 73 byscrews 87, and a spring biased actuator arrangement 89 (see FIG. 4) in the joy stick andpush button 91 on the end of the joy stick are used to actuatemicro switch 85. Cable 93 (see FIG. 2) has leads that are connected at one end internally of the micro switch, and the other end of each of the leads is connected through an electrical connector 95 to the exterior of the housing.
In operation, the joystick handle portion 14 is moved manually to the position desired to adjustvariable resistors 15, 17 to provide signals for causing a pip or hook to be positioned in accordance with the position of the joy stick on a plan position indicator (not shown). The output resistance ofvariable resistors 15, 17 is directly proportional to the degrees rotation of its respective X or Y shaft. Once the pip or hook has been placed on the plan position indicator and used as desired, actuation ofmicro switch 85 by depressingpush button 91 causes a circuit (not shown) controlled through electrical connector 95 to be controlled and thereby cause said pip or hook to be blanked out.
It is to be understood that the form of my invention, herewith shown and described, is to be taken as a preferred example of the same, and that various changes in the size, shape, and arrangement of parts may be resorted to without departing from the spirit of my invention, or the scope of the subjoined claims.
I claim:
1. A joy stick mechanism including: a housing; first and second shafts rotatably mounted in said housing on intersecting axes and perpendicular to each other; a short shaft rotatably mounted in a portion of said first shaft and on an axis that is alignable co-axially with the axis of said second shaft; said second shaft having opposite end portions that are interconnected by a yoke member that has 9 a a slot therein, said slot being formed with two semicircular rails on opposite sides of the slot, facing in opposite directions toward each other and spaced apart in a radial direction so that the rails do not overlap; a joy stick connected to a central portion of said short shaft, said joy stick having a portion on one side projecting through said slot and a second portion on an opposite side projecting outwardly of said housing to form an actuating handle portion; and two rotatable bearings mounted in tandem on said one side portion of said joy stick with one of said bearings contacting one of said rails and the other of said bearings contacting the other of said rails to provide a close tolerance fit between said one side portion of said joy stick and said rails to prevent backlash between the joy stick and said second shaft.
2. A joy stick mechanism as set forth in claim 1, wherein variable resistors are mounted on said housing, gear means are mounted on each of said first and second shafts with one of said gear means meshing with a first gear connected to one of said variable resistors, and the other of said gear means meshing with a second gear connected to the other of said variable resistors.
3. A joy stick mechanism as set forth in claim 1, Wherein said portion on one side of said joy stick has a microswitch mounted thereon, actuator means mounted in the joy stick and extending out opposite ends thereof for actuating said micro-switch, and leads connected to said micro-switch and to electrical terminals mounted in the side of said housing.
4. A joy stick mechanism as set forth in claim 1 wherein friction brake means is provided for uniformly resisting movement of said joy stick, said friction brake means ineluding a spherical surface on a cover at one end of said housing, means slidably mounting a friction pin on said one side portion of said joy stick and a spring biasing said friction pin into frictional engagement with said spherical surface; wherein variable resistors are mounted on said housing, and gear means are mounted on each of said first and second shafts with one of said gear means meshing with a first gear connected for actuating one of said variable resistors, and the other of said gear means meshing with a second gear connected for actuating the other of said variable resistors; and wherein a second cover is mounted on said housing opposite said first recited cover and a boot sealing between said joy stick and an opening through said second cover.
References Cited UNITED STATES PATENTS 2,379,778 7/1945 Allen 74-471 X 2,762,234 9/1956 Dodd 74-471 X 2,939,332 6/ 1960 Peterson 74-471 X 3,095,754 7/1963 Mayon et al 74-471 3,299,731 1/ 1967 Russell 74471 FRED C. MATTERN, JR., Primary Examiner.
C. F. GREEN, Assistant Examiner.
US513128A1965-12-101965-12-10Joy stick mechanismExpired - LifetimeUS3365975A (en)

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US513128AUS3365975A (en)1965-12-101965-12-10Joy stick mechanism

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US3365975Atrue US3365975A (en)1968-01-30

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US3496786A (en)*1967-02-021970-02-24Kern & Co AgControl device
US3701288A (en)*1970-08-101972-10-31Fairchild IndustriesControl apparatus having a finger operated dual motion control device
US3711811A (en)*1970-11-181973-01-16Matsushita Electric Industrial Co LtdDevice for simultaneously controlling rotary shafts of a plurality of variable resistors
US3745966A (en)*1971-11-261973-07-17Gen ElectricFour-quadrant indicator employing moire effect
US3760320A (en)*1971-03-251973-09-18Matsushita Electric Industrial Co LtdDevice for simultaneously controlling a plurality of variable resistors
US3870161A (en)*1973-02-281975-03-11Heede International IncJoy stick controller for tower crane
US3893449A (en)*1973-12-211975-07-08NasaReference apparatus for medical ultrasonic transducer
US4085301A (en)*1976-09-161978-04-18Fairchild Camera And Instrument CorporationHand-held controller device
US4127841A (en)*1976-07-301978-11-28Toshiba Kikai Kabushiki KaishaMulti-direction controlling mechanism
US4156130A (en)*1977-09-261979-05-22Tele Industries, Inc.Joystick mechanism
US4375631A (en)*1981-04-091983-03-01Ampex CorporationJoystick control
US4414438A (en)*1982-06-041983-11-08International Jensen IncorporatedVideo game controller
US4489304A (en)*1983-07-221984-12-18Hayes Charles LSpring disconnect mechanism for self centering multiple axis analog control stick
US4584577A (en)*1982-10-201986-04-22Brookes & Gatehouse LimitedAngular position sensor
US4660828A (en)*1983-06-151987-04-28Allen SchwabReactive control apparatus
US4704915A (en)*1986-02-251987-11-10Deere & CompanyValve control lockout
US4841800A (en)*1987-03-091989-06-27Ampex CorporationAdjustable control lever
US5857492A (en)*1998-03-201999-01-12Husco International, Inc.Electromagnetic friction lock for a dual axis control devices
US6536298B1 (en)*2000-06-302003-03-25Caterpillar IncModular joystick
US20030209376A1 (en)*2002-05-032003-11-13Mario KustoschMethod and arrangement for the speed control of a motor vehicle and operator-controlled element
US20040059191A1 (en)*2002-06-172004-03-25Robert KrupaMechanical steering mechanism for borescopes, endoscopes, catheters, guide tubes, and working tools
US20040077406A1 (en)*2002-10-172004-04-22Alps Electric Co., Ltd.Sense of force imparting type input device
US20040130525A1 (en)*2002-11-192004-07-08Suchocki Edward J.Dynamic touch screen amusement game controller
US20040193016A1 (en)*2002-06-172004-09-30Thomas RootEndoscopic delivery system for the non-destructive testing and evaluation of remote flaws
US20070086205A1 (en)*2003-03-262007-04-19Optim, Inc.Compact, high efficiency, high power solid state light source using a solid state light-emitting device
US20080114207A1 (en)*2006-11-142008-05-15Krupa Robert JPortable endoscope
US20080115611A1 (en)*2006-11-202008-05-22Honeywell International, Inc.Fully floating, self-aligning, self-adjusting gimbal assembly for an active human-machine interface
US20080214896A1 (en)*2007-01-102008-09-04Krupa Robert JEndoscope with detachable elongation portion
US20090076328A1 (en)*2007-09-142009-03-19Root Thomas VEndoscope with internal light source and power supply
FR2977236A1 (en)*2011-06-292013-01-04Eurocopter FranceRemote control mechanical transmission control mechanism for controlling flight directions of rotorcraft during pitching and rolling, has retraction unit that retracts one of rolling elements or rails under effect of swivel guide of lever
US8556628B1 (en)*2006-08-152013-10-15Malcom E. BaxterShooting training device
US9151564B1 (en)2006-08-152015-10-06Triggermaster, Inc.Firearm trigger pull training system and methods
US9728095B1 (en)2006-08-152017-08-08Triggermaster, LlcFirearm trigger pull training system and methods
US10712116B1 (en)2014-07-142020-07-14Triggermaster, LlcFirearm body motion detection training system
US20230384814A1 (en)*2022-05-242023-11-30Ferrari S.P.A.Motor vehicle seat with integrated controls

Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US2379778A (en)*1945-07-03Fire director
US2762234A (en)*1952-09-081956-09-11Dodd Roy FrankSearch-track radar control
US2939332A (en)*1955-05-311960-06-07Rca CorpMechanical movement
US3095754A (en)*1960-06-301963-07-02Burroughs CorpControl apparatus
US3299731A (en)*1964-04-071967-01-24Gen Precision IncGimbal-type joystick

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US2379778A (en)*1945-07-03Fire director
US2762234A (en)*1952-09-081956-09-11Dodd Roy FrankSearch-track radar control
US2939332A (en)*1955-05-311960-06-07Rca CorpMechanical movement
US3095754A (en)*1960-06-301963-07-02Burroughs CorpControl apparatus
US3299731A (en)*1964-04-071967-01-24Gen Precision IncGimbal-type joystick

Cited By (48)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US3496786A (en)*1967-02-021970-02-24Kern & Co AgControl device
US3701288A (en)*1970-08-101972-10-31Fairchild IndustriesControl apparatus having a finger operated dual motion control device
US3711811A (en)*1970-11-181973-01-16Matsushita Electric Industrial Co LtdDevice for simultaneously controlling rotary shafts of a plurality of variable resistors
US3760320A (en)*1971-03-251973-09-18Matsushita Electric Industrial Co LtdDevice for simultaneously controlling a plurality of variable resistors
US3745966A (en)*1971-11-261973-07-17Gen ElectricFour-quadrant indicator employing moire effect
US3870161A (en)*1973-02-281975-03-11Heede International IncJoy stick controller for tower crane
US3893449A (en)*1973-12-211975-07-08NasaReference apparatus for medical ultrasonic transducer
US4127841A (en)*1976-07-301978-11-28Toshiba Kikai Kabushiki KaishaMulti-direction controlling mechanism
US4085301A (en)*1976-09-161978-04-18Fairchild Camera And Instrument CorporationHand-held controller device
US4156130A (en)*1977-09-261979-05-22Tele Industries, Inc.Joystick mechanism
US4375631A (en)*1981-04-091983-03-01Ampex CorporationJoystick control
US4414438A (en)*1982-06-041983-11-08International Jensen IncorporatedVideo game controller
US4584577A (en)*1982-10-201986-04-22Brookes & Gatehouse LimitedAngular position sensor
US4660828A (en)*1983-06-151987-04-28Allen SchwabReactive control apparatus
US4489304A (en)*1983-07-221984-12-18Hayes Charles LSpring disconnect mechanism for self centering multiple axis analog control stick
US4704915A (en)*1986-02-251987-11-10Deere & CompanyValve control lockout
US4841800A (en)*1987-03-091989-06-27Ampex CorporationAdjustable control lever
US5857492A (en)*1998-03-201999-01-12Husco International, Inc.Electromagnetic friction lock for a dual axis control devices
US6536298B1 (en)*2000-06-302003-03-25Caterpillar IncModular joystick
US20030209376A1 (en)*2002-05-032003-11-13Mario KustoschMethod and arrangement for the speed control of a motor vehicle and operator-controlled element
US7493981B2 (en)*2002-05-032009-02-24Robert Bosch GmbhMethod and arrangement for the speed control of a motor vehicle and operator-controlled element
US20080006462A1 (en)*2002-05-032008-01-10Robert Bosch GmbhMethod and arrangement for the speed control of a motor vehicle and operator-controlled element
US20040059191A1 (en)*2002-06-172004-03-25Robert KrupaMechanical steering mechanism for borescopes, endoscopes, catheters, guide tubes, and working tools
US20040193016A1 (en)*2002-06-172004-09-30Thomas RootEndoscopic delivery system for the non-destructive testing and evaluation of remote flaws
US20040077406A1 (en)*2002-10-172004-04-22Alps Electric Co., Ltd.Sense of force imparting type input device
US20040130525A1 (en)*2002-11-192004-07-08Suchocki Edward J.Dynamic touch screen amusement game controller
US20070086205A1 (en)*2003-03-262007-04-19Optim, Inc.Compact, high efficiency, high power solid state light source using a solid state light-emitting device
US20090040783A1 (en)*2003-03-262009-02-12Optim, Inc.Compact, high efficiency, high power solid state light source using a single solid state light-emitting device
US9022628B2 (en)2003-03-262015-05-05Optim, Inc.Compact, high efficiency, high power solid state light source using a single solid state light-emitting device
US8033704B2 (en)2003-03-262011-10-11Optim, Inc.Compact, high efficiency, high power solid state light source using a solid state light-emitting device
US9728095B1 (en)2006-08-152017-08-08Triggermaster, LlcFirearm trigger pull training system and methods
US11788813B2 (en)*2006-08-152023-10-17Triggermaster, LlcTrigger pull training device
US20190226791A1 (en)*2006-08-152019-07-25Triggermaster, Inc.Trigger pull training device
US10247505B1 (en)2006-08-152019-04-02Triggermaster, LlcTrigger pull training device
US9151564B1 (en)2006-08-152015-10-06Triggermaster, Inc.Firearm trigger pull training system and methods
US8556628B1 (en)*2006-08-152013-10-15Malcom E. BaxterShooting training device
US8911235B1 (en)2006-08-152014-12-16Triggermaster, Inc.Shooting training device
US20080114207A1 (en)*2006-11-142008-05-15Krupa Robert JPortable endoscope
US9055863B2 (en)2006-11-142015-06-16Optim, Inc.Portable endoscope
WO2008064117A3 (en)*2006-11-202008-07-24Honeywell Int IncFully floating, self -aligning, self-adjusting gimbal assembly for an active human-machine interface
US20080115611A1 (en)*2006-11-202008-05-22Honeywell International, Inc.Fully floating, self-aligning, self-adjusting gimbal assembly for an active human-machine interface
US8033197B2 (en)2006-11-202011-10-11Honeywell International Inc.Fully floating, self-aligning, self-adjusting gimbal assembly for an active human machine interface
US20080214896A1 (en)*2007-01-102008-09-04Krupa Robert JEndoscope with detachable elongation portion
US8152715B2 (en)2007-09-142012-04-10Optim, IncorporatedEndoscope with internal light source and power supply
US20090076328A1 (en)*2007-09-142009-03-19Root Thomas VEndoscope with internal light source and power supply
FR2977236A1 (en)*2011-06-292013-01-04Eurocopter FranceRemote control mechanical transmission control mechanism for controlling flight directions of rotorcraft during pitching and rolling, has retraction unit that retracts one of rolling elements or rails under effect of swivel guide of lever
US10712116B1 (en)2014-07-142020-07-14Triggermaster, LlcFirearm body motion detection training system
US20230384814A1 (en)*2022-05-242023-11-30Ferrari S.P.A.Motor vehicle seat with integrated controls

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