US3734230A - Emergency stop switch means for a mobilized sledge or the like - Google Patents

Emergency stop switch means for a mobilized sledge or the like Download PDF

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Publication number
US3734230A
US3734230A US00126635A US3734230DA US3734230A US 3734230 A US3734230 A US 3734230A US 00126635 A US00126635 A US 00126635A US 3734230D A US3734230D A US 3734230DA US 3734230 A US3734230 A US 3734230A
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United States
Prior art keywords
switch means
engine
throttle
emergency stop
sledge
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Expired - Lifetime
Application number
US00126635A
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English (en)
Inventor
Y Tanaka
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Individual
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Individual
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Publication of US3734230A publication Critical patent/US3734230A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B60K28/14—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle  responsive to accident or emergency, e.g. deceleration, tilt of vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
    • B60K28/04—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to presence or absence of the driver, e.g. to weight or lack thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20256—Steering and controls assemblies
    • Y10T74/20268—Reciprocating control elements
    • Y10T74/2028—Handle bar type
    • Y10T74/20287—Flexible control element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2042—Flexible transmitter [e.g., Bowden cable] and hand operator
    • Y10T74/20438—Single rotatable lever [e.g., for bicycle brake or derailleur]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/2045—Flexible transmitter [e.g., Bowden cable] and sheath support, connector, or anchor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
    • Y10T74/20462—Specific cable connector or guide

Definitions

  • An emergency stop switch means to be used for a mobilized sledge or the like in which said means includes a throttle lever for operating a carburetter and mounted on a handle portion, said throttle lever being provided with a contact point wherein it is short-circuited to stop the rotation of an engine in the manner that in an emergency said contact point is closed merely by releasing said lever thereby to stop the rotation of an engine.
  • the present invention relates to an emergency stop switch means to be used for a mobilized sledge car or the like which runs on the cold district or snowfield.
  • an emergency stop switch means in which an electrical circuit is designed to earth thereby to bring the rotation of an engine to a halt.
  • the conventional type of such an emergency stop switch means is mounted on an instrument board so that in order to manually operate the same, it is necessary to turn it on with one hand while grasping the handle with the other hand.
  • the present invention aims at provision of the mobilized sledge car or the like in the manner of enabling an operator to easily switch on and stop the rotation of an engine. More particularly, this invention intends to provide such a mechanism that an emergency stop switch means can automatically act to halt the rotation of an engine even in the case that a carburetter would not be closed by releasing a throttle lever in an emergency because the inner wire immediately connected with this lever thereby to operate the carburetter has been frozen up in a stationary state together with the outer wire of said inner wire as has just been referred to.
  • the mechanical arrangements of the present invention are such that a throttle lever is mounted on a handle portion so as to control the rotatory speed of an engine and on this throttle lever is mounted an emergency stop switch means in the manner of enabling an operator to drive a mobilized sledge car or the like with high safety on the cold district or snowfield, always making it secure that even if the inner wire has been frozen before he is aware of it, the emergency stop switch means is ready to automatically work in an emergency to bring the rotation of an engine to a halt.
  • the emergency stop switch means in accordance with the present invention is to automatically work and stop the rotation of an engine mereby by releasing the grasp of the throttle lever mounted on a handle portion, that is, by removing the load acting on this throttle lever.
  • an emergency stop switch means having a very simple and durable structure that'can be manufactured economically on a large scale and employed to thereby obviate any operational accidents that otherwise may occur to a mobilized sledge car or the like running on the cold district or snowfield. It is another objective of the invention to provide such a mechanical structure that an emergency stop switch means is mounted on a handle portion or in a suitable position where an operator is able to manipulate the same in a carefree manner thereby preventing the operational jeopardies of a mobilized sledge car or the like.
  • FIG. 1 is a perspective view showing an example of a mobilized sledge car or the like in which an emergency stop switch means in accordance with the present invention is mounted on a handle portion,
  • FIG. 2 is a vertical cross-section showing a throttle lever portion (emergency stop switch means) which is an elemental part of the invention
  • FIG. 3 is a schematic view illustrating how the throttle lever is when grasped by hand
  • FIG. 4 is a schematic diagram of the electrical circuit adaptable for the emergency stop switch means embodying the present invention.
  • reference character a designates a handle means of the sledge car.
  • Said handle means a has a throttle lever b at one side and a brake lever c at the other side respectively movably pivoted through a bracket secured to the handle means a.
  • Said throttle lever b is constructed in such a manner that, as is clearly shown as an example by reference numeral 1 in FIG. 2, it is formed with a reversely U-typed metallic plate having their ends cut to form a protruded piece in mutually opposed position of the middle portion.
  • the foremost end of said protruded piece has perforated holes 2 formed in aligned relation with each other thereby to allow both the throttle lever and the brake lever to be moveably pivoted to the bracket as have been mentioned above.
  • the electric switch means 3 comprises a pair of lead wires 6 and 7 secured to one side of a chamber 8 and each terminal of which is slightly protruded into the inside of said chamber 8.
  • Each opposed wall of said chamber 8 is provided with a groove 9 in the position opposed to said narrow grooves formed in the holding pawls 4.
  • a metallic contact element 10 bent in a channel shape. In the position opposite to the chamber wall corresponding to the groove 9 of the chamber 8 there is formed a narrow groove 11.
  • a pushing spring 12 which normally presses this element 10 against the terminals of the lead wires 6 and 7.
  • the pushing spring 12 is replaceable with a pulling spring or any other resilient elements that can normally keep the metallic contact element 10 in abutment against the terminals.
  • Reference numeral 13 designates the inner wire of an outer wire. To the foremost end of this inner wire 13 is secured a ball 14 disposed in the space of the channel-shaped metallic contact element 10. Said foremost end of the inner wire 13 extends in a fixed direction through said narrow grooves 5, 9 and 11, and connected to a lever (not shown) which operates a carburetter (not shown).
  • each terminal of the lead wires 6 and 7 is connected to the contact point F of the ignition coil E in an electrical circuit which works as the ignition device of an engine, so that when said metallic contact element 10 abuts against these terminals, an electric current will be earthed so as not to cause a spark plug G to set off whereby the rotation of an engine is brought to a halt.
  • the throttle lever b is moved on that pivoting point as its center which is formed by said perforated holes 2 as is shown in FIG. 3 so that the inner wire 13 is pulled to open a carburetter thereby giving the initial motion to an engine.
  • the ball 14 fixed on the foremost end of the inner wire 13 is brought into contact with the metallic contact element 10 to move the same in the opposed direction to the terminals of the lead wires 6 and 7 against the resiliency of the pushing spring 12.
  • the pressure force of the ball 14 against the metallic contact element 10 is set free whereby the pushing spring 12 that had been compressed before the throttle lever b was released gets so repulsive that it presses the contact element 10 against the terminals of the lead wires 6 and 7 as is shown in FIG. 2 and connect these terminals with each other.
  • the electrical circuit shown in FIG. 4 is earthed so that the spark plug G is not ignited to thereby stop the rotation of the engine, and bring the sledge car to a halt.
  • the present invention is concerned with the provision of such an electric switch means for emergency stop only as can be operated merely by releasing the hand-grasping power of the throttle lever b when an operator comes across obstacles in from of him while running the sledge car with the throttle lever b in hand or when he cannot slow up the rotatory speed of the engine by operating the throttle lever because the inner wire has been frozen together with the outer wire thereof or broken before he is aware of them.
  • the emergency stop switch means in accordance with the present invention is substantially provided in the throttle lever b mounted on a handle means as has been mentioned, so that an operator can easily operate this thereby to stop the rotation of an engine and bring the sledge car to a halt at his seated posture which it is necessary to take the trouble of changing when he intends to operate the conventional type of emergency stop switch means.
  • the emergency stop switch means of the present invention provides many advantages that, in addition to being very easily operable, it is excessively simple in structure and produceable economically on a large scale thereby making it possible to secure many operational effects and mechanical merits that cannot be obtained by the conventional type of switches.
  • said hand means is a U shaped structure
  • said slidable contacting means is a box-like structure disposed within said U shaped structure.
  • interconnecting means is a wire having an enlarged portion at one end thereof, said enlarged end being held by said box-like structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
US00126635A 1970-12-17 1971-03-22 Emergency stop switch means for a mobilized sledge or the like Expired - Lifetime US3734230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45114378A JPS498721B1 (enExample) 1970-12-17 1970-12-17

Publications (1)

Publication Number Publication Date
US3734230A true US3734230A (en) 1973-05-22

Family

ID=14636175

Family Applications (1)

Application Number Title Priority Date Filing Date
US00126635A Expired - Lifetime US3734230A (en) 1970-12-17 1971-03-22 Emergency stop switch means for a mobilized sledge or the like

Country Status (3)

Country Link
US (1) US3734230A (enExample)
JP (1) JPS498721B1 (enExample)
CA (1) CA959730A (enExample)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845847A (en) * 1973-08-20 1974-11-05 R Camp Throttle, ignition and brake controls
US3881461A (en) * 1973-08-03 1975-05-06 Stanislaw F Filip Automatic power cut-off device for vehicles
US3957131A (en) * 1972-10-13 1976-05-18 Perkins Dwight L Safety ignition switch and brake actuator
US3966010A (en) * 1975-06-16 1976-06-29 Saroy Engineering Power driven ski's throttle and shut-off control
US3980068A (en) * 1975-03-25 1976-09-14 Jacobsen Manufacturing Company Gasoline powered machine having two electric circuit switches
US4037683A (en) * 1975-10-20 1977-07-26 Lebell Gene Motorvehicle safety cut-out switch
US4058105A (en) * 1976-04-15 1977-11-15 Scorpion, Inc. Snowmobile safety switch system
US4138601A (en) * 1975-11-21 1979-02-06 Yamaha Hatsudoki Kabushiki Kaisha Safety device
US4260036A (en) * 1978-10-13 1981-04-07 Bissett Fred L Powered ski
US4483683A (en) * 1982-08-06 1984-11-20 Alley Sr Ronald S Ski tow signal assembly
US5343189A (en) * 1992-11-10 1994-08-30 Alley Sr Ronald S Signal assembly removably attachable to handle of ski tow rope
US6215204B1 (en) 1999-09-28 2001-04-10 Rockwell Technologies, Llc Emergency stop system employing modular relays
US6388563B1 (en) 1999-09-28 2002-05-14 Rockwell Automation Technologies, Inc. Modular relay with network communications
US6686672B2 (en) 1999-09-28 2004-02-03 Rockwell Automation Technologies, Inc. Modular emergency stop relay system
CN100475638C (zh) * 2003-12-30 2009-04-08 简·诺曼 机动车的控制装置
US20090260596A1 (en) * 2008-04-22 2009-10-22 Briggs And Stratton Corporation Ignition and fuel shutoff for engine
US20100032965A1 (en) * 2008-08-07 2010-02-11 Kargilis John S Liftgate latch linear cable switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324421U (enExample) * 1976-08-10 1978-03-01

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR544530A (fr) * 1921-12-13 1922-09-23 Dispositif de commande électrique applicable aux avertisseurs d'automobiles pour révéler le déblocage du frein
US1881251A (en) * 1930-10-06 1932-10-04 Jr Robert H Tobener Throttle ignition switch
US3487183A (en) * 1967-10-12 1969-12-30 Norman S Schulman Spring actuated safety switch assembly
US3626919A (en) * 1970-11-10 1971-12-14 Charles W Macmillan Fail-safe throttle control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR544530A (fr) * 1921-12-13 1922-09-23 Dispositif de commande électrique applicable aux avertisseurs d'automobiles pour révéler le déblocage du frein
US1881251A (en) * 1930-10-06 1932-10-04 Jr Robert H Tobener Throttle ignition switch
US3487183A (en) * 1967-10-12 1969-12-30 Norman S Schulman Spring actuated safety switch assembly
US3626919A (en) * 1970-11-10 1971-12-14 Charles W Macmillan Fail-safe throttle control

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957131A (en) * 1972-10-13 1976-05-18 Perkins Dwight L Safety ignition switch and brake actuator
US3881461A (en) * 1973-08-03 1975-05-06 Stanislaw F Filip Automatic power cut-off device for vehicles
US3845847A (en) * 1973-08-20 1974-11-05 R Camp Throttle, ignition and brake controls
US3980068A (en) * 1975-03-25 1976-09-14 Jacobsen Manufacturing Company Gasoline powered machine having two electric circuit switches
US3966010A (en) * 1975-06-16 1976-06-29 Saroy Engineering Power driven ski's throttle and shut-off control
US4037683A (en) * 1975-10-20 1977-07-26 Lebell Gene Motorvehicle safety cut-out switch
US4138601A (en) * 1975-11-21 1979-02-06 Yamaha Hatsudoki Kabushiki Kaisha Safety device
US4058105A (en) * 1976-04-15 1977-11-15 Scorpion, Inc. Snowmobile safety switch system
US4260036A (en) * 1978-10-13 1981-04-07 Bissett Fred L Powered ski
US4483683A (en) * 1982-08-06 1984-11-20 Alley Sr Ronald S Ski tow signal assembly
US5343189A (en) * 1992-11-10 1994-08-30 Alley Sr Ronald S Signal assembly removably attachable to handle of ski tow rope
US6215204B1 (en) 1999-09-28 2001-04-10 Rockwell Technologies, Llc Emergency stop system employing modular relays
US6388563B1 (en) 1999-09-28 2002-05-14 Rockwell Automation Technologies, Inc. Modular relay with network communications
US6686672B2 (en) 1999-09-28 2004-02-03 Rockwell Automation Technologies, Inc. Modular emergency stop relay system
CN100475638C (zh) * 2003-12-30 2009-04-08 简·诺曼 机动车的控制装置
US20090260596A1 (en) * 2008-04-22 2009-10-22 Briggs And Stratton Corporation Ignition and fuel shutoff for engine
US8408183B2 (en) 2008-04-22 2013-04-02 Briggs & Stratton Corporation Ignition and fuel shutoff for engine
US20100032965A1 (en) * 2008-08-07 2010-02-11 Kargilis John S Liftgate latch linear cable switch
US8382167B2 (en) * 2008-08-07 2013-02-26 Chrysler Group Llc Liftgate latch linear cable switch

Also Published As

Publication number Publication date
CA959730A (en) 1974-12-24
JPS498721B1 (enExample) 1974-02-28

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