US3745286A - Trigger operated tool handle switch - Google Patents

Trigger operated tool handle switch Download PDF

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Publication number
US3745286A
US3745286A US00130384A US3745286DA US3745286A US 3745286 A US3745286 A US 3745286A US 00130384 A US00130384 A US 00130384A US 3745286D A US3745286D A US 3745286DA US 3745286 A US3745286 A US 3745286A
Authority
US
United States
Prior art keywords
trigger
outer end
frame portion
carrier
switch device
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.)
Expired - Lifetime
Application number
US00130384A
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English (en)
Inventor
E Sahrbacker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lucerne Products Inc
Original Assignee
Lucerne Products Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lucerne Products Inc filed Critical Lucerne Products Inc
Application granted granted Critical
Publication of US3745286A publication Critical patent/US3745286A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/635—Contacts actuated by rectilinearly-movable member linked to operating part, e.g. by pin and slot

Definitions

  • a trigger operated electric switch for portable electric motor-driven tools including a switch casing having an integral extended frame portion with a trigger actuated switch device disposed in the casing.
  • a contact carrier is disposed in the casing and has an integral elongated arm extending outwardly from the carrier in the direction of the frame portion.
  • the contact carrier is disposed in the casing and frame portion for reciprocation therein along the longitudinal axis of the carrier.
  • the contact carrier contains a portion of the switch device whereby reciprocation of the contact carrier actuates the switch device.
  • a bell-crank trigger is pivotally mounted at its apex on the free outer end of the frame portion above the outer end portion of the arm for rotation in the longitudinal vertical plane of the carrier.
  • One end of the bell-crank trigger is pivotally connected to the outer end of the arm, and bias means is disposed between the frame portion and the outer end portion of the bell-crank trigger to bias the switch device to a first preselected position. Displacement of the outer end portion of the trigger against the action of the bias means displaces the contact carrier to a second preselected position.
  • the invention relates to an electrical switch device for portable electric motor driven tools to control the application of electrical energy from an energy source to the motor.
  • a trigger switch wherein the trigger is disposed at substantially a right angle to the switch mechanism.
  • the switch device of the invention is intended to be connected in controlling relation with the appliance and the electrical energy source to which it is connected, as for example in the handle of the portable electric tool, so as to be conveniently actuated by the operatorthereof to variably control the application of such energy to the motor of the tool.
  • Another object of the present invention is to provide a new and novel electrical switch device for controllably varying the application of electrical energy from an energy source to a connected load such as a hand-held electric drill, food mixer or like appliance, and which switch is also adjustable to provide a predetermined magnitude of energy to be applied to the connected load when the switch device is in its full on" position.
  • a furtherobject of the invention is to provide a trigger operated hand drill switch having its trigger disposed at substantially a right angle to the switch mechanism.
  • a further object of the invention is to provide a hand tool trigger switch of the above type having a contact carrier with an extended arm which is pivotally connected to the trigger.
  • a further object of the invention is to provide a portable tool switch that is simple in construction, inexpensive to manufacture, and highly effective in operation.
  • a trigger operated electric switch for portable electric motor driven tools including a switch casing having an integral extended frame portion with a trigger actuated switch device disposed in the casing.
  • the switch device includes a contact carrier which is disposed in the casing.
  • the contact carrier has an integral elongated arm extending outwardly from the carrier in the direction of the frame portion, and is disposed in the casing and frame portion for reciprocation therein along the longitudinal axis of the carrier.
  • the contact carrier contains a portion of the switch device whereby reciprocation of the contactcarrier actuates the switch device.
  • a bell-crank trigger is pivotally mounted at its apex on the free outer end of the frame portion above the outer end portion of the arm for rotation in the longitudinal vertical plane of the carrier.
  • One end of the bell-crank trigger is pivotally connected to the outer end of the arm, andbias means is disposed between the frame portion and the outer end portion of the bell-crank trigger to bias the switch device to a first preselected position.
  • the trigger is thus disposed at substantially a right angle to the switch device. Displacement of the outer end portion of the trigger against the action of the bias means displaces the contact carrier to a second preselected position.
  • FIG. l is a side elevational view of a hand tool trigger switch constructed in accordance: with the invention.
  • FIG. 2 is a view taken along the line 2-2 of FIG. 1;
  • FIG. 3 is a view taken along the line 3-3 of FIG. 1;
  • FIG. 4 is a sectional view taken along the line 4-4 of FIG. 2;
  • FIG. 5 is a sectional view taken along the line 5-5 of FIG. 4;
  • FIG. 6 is a view similar to FIG. 4, but showing the trigger in pressed position.
  • FIG. 7 is a sectional view taken along the line 7+7 of FIG. 6.
  • the switch device of the present invention includes a switch casing or body 10 which encases a trigger actuated switch mechanism or device that is disclosed and claimed in the assignees application Ser. No. 702,272 entitled Electric Switch and filed on Feb. 1, 1968, now U.S. Pat. No. 3,536,973 issued Oct. 27, 1970. Such switch device will not be further described in detail as the same, per se, forms no part of the present invention.
  • the switch casing 10 has an extended frame portion 12 formed integral with the casing.
  • a movable contact carrier 16 is disposed in the casing 10 and has an integral elongated arm 18 extending outwardly from the carrier in the direction of the frame portion 12.
  • the contact carrier 16 (and its arm E8) is disposed in the casing 10 and its frame portion 12 for reciprocation therein substantially along the longitudinalaxis of the carrier.
  • the contact carrier 16 contains a portion of the switch device wherebyreciprocation of the contact carrier actuates the switch device.
  • a bell-crank trigger generally designated as T is pivotallymounted at its apex 32 by means of the pin33 on the free outer end 34 of the frame portion 12 abovethe outer end portion of the arm 18 for rotation in the longitudinal vertical plane of the carrier 16.
  • One end 36 of the bell-crank trigger T is pivotally connected to the outer end 38 of the arm 18.
  • Suitable bias means in the form of the compressed coil spring 40 is disposed between the frame portion 12 and the outer end portion 42 of the bell-crank trigger T to bias the switch device to a first preselected position (shown in FIG. 4). Displacement of the outer end portion 42 of the trigger T against the action of the bias means 40 displaces the contact carrier 16 to a second preselected position (shown in FIG. 6).
  • the outer end portion 38 of the arm 18 is bifurcated (FIGS. 4 and 6) forming a U-shaped slot 52 with the open end of the U facing away from the one end 36 of the bell-crank trigger T.
  • Such end 36 of the bell-crank trigger has a transverse pin or rod 54 thereon operatively disposed in the U-shaped slot 52 to form a pivotal connection between the trigger T and the arm 18.
  • Suitable pushbutton means 60 is disposed on the frame portion 12 and coactsvwith the trigger T to selectively retain the trigger in a second preselected position.
  • the pushbutton 60 per se, forms no part of the present invention and is described in detail in the aforementioned U.S. Pat. No. 3,536,973.
  • the one-piece carrier l6-arm 18 structure effects unusual economy of manufacture and cost reduction.
  • An electric switch for portable electric motordriventools comprising, a switch casing having an integral extended frame portion, an upstanding, integral projection on the upper, free outer end portion of the extended frame portion, a'trigger actuated switch device disposed in the casing, a reciprocable contact carrier reciprocably disposed in the casing for reciprocation along the longitudinal axis of the carrier and having an integral elongated arm extending outwardly from the carrier in the direction of the extended frame portion and underlying the extended frame portion, a portion of the switch device supported in said contact carrier whereby reciprocation of the contact carrier actuates the switch device, said portion of the switch device including a substantially U-shaped contact r'novably received in a pocket in the contact carrier, bias means in the contact carrier urging the contact'outwardly, a bell-crank trigger pivotally mounted at its apex on the upper end of the projection on the free outer end of the extended frame portion above the outer end portion of the arm for rotation in the longitudinal vertical plane of the carrier, the outer end portion of the arm being bifur

Landscapes

  • Push-Button Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)
US00130384A 1971-04-01 1971-04-01 Trigger operated tool handle switch Expired - Lifetime US3745286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13038471A 1971-04-01 1971-04-01

Publications (1)

Publication Number Publication Date
US3745286A true US3745286A (en) 1973-07-10

Family

ID=22444459

Family Applications (1)

Application Number Title Priority Date Filing Date
US00130384A Expired - Lifetime US3745286A (en) 1971-04-01 1971-04-01 Trigger operated tool handle switch

Country Status (8)

Country Link
US (1) US3745286A (it)
JP (1) JPS5397379U (it)
AU (1) AU464644B2 (it)
CA (1) CA952163A (it)
DE (1) DE2154921A1 (it)
GB (1) GB1370016A (it)
IT (1) IT940984B (it)
NL (1) NL7115343A (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241298A (en) * 1979-01-22 1980-12-23 Teccor Electronics, Inc. Speed control switch
US4705920A (en) * 1986-04-08 1987-11-10 Lucerne Products, Inc. Electrical switch with rocker actuator having removable locking key
US4754110A (en) * 1986-12-22 1988-06-28 Lucerne Products, Inc. Barrier sealing means for an electrical switch for resisting entry of foreign material into the switch body
US5012057A (en) * 1988-03-15 1991-04-30 Omron Tateisi Electronics Co. Trigger switch
US5075604A (en) * 1990-07-27 1991-12-24 Milwaukee Electric Tool Corporation Variable resistance switch
US6664490B2 (en) * 2001-11-27 2003-12-16 Satori-S-Tech Co., Ltd. Switching mechanism and electric switch using the same
US6727450B2 (en) * 2000-01-22 2004-04-27 Marquardt Gmbh Electric switch
US20040134766A1 (en) * 2003-01-13 2004-07-15 Defond Manufacturing Limited Power tool trigger assembly
USD535862S1 (en) 2003-05-23 2007-01-30 Milwaukee Electric Tool Corporation Trigger for a power tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737372Y2 (it) * 1976-07-02 1982-08-18
US4434330A (en) 1981-04-09 1984-02-28 Tri-Tech, Inc. High temperature switch
CN112309731B (zh) * 2020-10-23 2023-02-10 广东电网有限责任公司梅州供电局 一种绝缘棒

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE26267E (en) * 1964-03-31 1967-09-26 Electrical switch with camming bridging contact
JPS4032595Y1 (it) * 1964-05-07 1965-11-16

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241298A (en) * 1979-01-22 1980-12-23 Teccor Electronics, Inc. Speed control switch
US4705920A (en) * 1986-04-08 1987-11-10 Lucerne Products, Inc. Electrical switch with rocker actuator having removable locking key
US4754110A (en) * 1986-12-22 1988-06-28 Lucerne Products, Inc. Barrier sealing means for an electrical switch for resisting entry of foreign material into the switch body
US5012057A (en) * 1988-03-15 1991-04-30 Omron Tateisi Electronics Co. Trigger switch
US5075604A (en) * 1990-07-27 1991-12-24 Milwaukee Electric Tool Corporation Variable resistance switch
US6727450B2 (en) * 2000-01-22 2004-04-27 Marquardt Gmbh Electric switch
US6664490B2 (en) * 2001-11-27 2003-12-16 Satori-S-Tech Co., Ltd. Switching mechanism and electric switch using the same
US20040134766A1 (en) * 2003-01-13 2004-07-15 Defond Manufacturing Limited Power tool trigger assembly
US6794594B2 (en) * 2003-01-13 2004-09-21 Defond Manufacturing Limited Power tool trigger assembly
USD535862S1 (en) 2003-05-23 2007-01-30 Milwaukee Electric Tool Corporation Trigger for a power tool

Also Published As

Publication number Publication date
NL7115343A (it) 1972-10-03
JPS5397379U (it) 1978-08-08
DE2154921A1 (de) 1972-10-05
GB1370016A (en) 1974-10-09
CA952163A (en) 1974-07-30
AU464644B2 (en) 1975-09-04
AU3515071A (en) 1973-05-03
IT940984B (it) 1973-02-20

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