US3309484A - Trigger actuated switch device - Google Patents

Trigger actuated switch device Download PDF

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Publication number
US3309484A
US3309484A US516331A US51633165A US3309484A US 3309484 A US3309484 A US 3309484A US 516331 A US516331 A US 516331A US 51633165 A US51633165 A US 51633165A US 3309484 A US3309484 A US 3309484A
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US
United States
Prior art keywords
trigger
movement
tool
casing
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
US516331A
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English (en)
Inventor
Carl J Frenzel
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.)
Skil Corp
Original Assignee
Skil Corp
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27058807&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US3309484(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority to NL134359D priority Critical patent/NL134359C/xx
Application filed by Skil Corp filed Critical Skil Corp
Priority to US516331A priority patent/US3309484A/en
Priority to GB56926/66A priority patent/GB1120010A/en
Priority to DE1563788A priority patent/DE1563788C3/de
Priority to FR89046A priority patent/FR1516882A/fr
Priority to BE691830D priority patent/BE691830A/xx
Priority to CH1859166A priority patent/CH452662A/de
Priority to NL6618214A priority patent/NL6618214A/xx
Publication of US3309484A publication Critical patent/US3309484A/en
Application granted granted Critical
Priority to US26781D priority patent/USRE26781E/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/04—Stops for limiting movement of members, e.g. adjustable stop
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/001—Housing of the drill, e.g. handgrip
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/08—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch
    • 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
    • H01H9/061—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 enclosing a continuously variable impedance
    • 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
    • Y10T74/20576—Elements
    • Y10T74/20636—Detents

Definitions

  • variable speed control system for portable power tools, such as power drills, which system includes a silicon controlled rectifier circuit having a variable resistor or potentiometer operated by the tool trigger.
  • the speed of the tool motor is increased as the tool trigger is depressed or squeezed.
  • the speed of the tool motor may be gradually varied from 0 to 2,000 r.p. m.
  • the present invention provides a trigger actuated switch device for use with a tool and speed c-ontrol system of the type described, which switch device includes an adjustable stop ⁇ for varying the stroke of the trigger to allow operation of the associated tool at a desired or predetermined speed by squeezing the trigger until it is stopped, and which switch device further includes locking means for locking the trigger at any and all of its stopped positions.
  • a primary object of the present invention is the provision of a trigger actuated switch device including unique, manually operable means for adjusting the stroke of the trigger.
  • Another object of the present invention is the provision of a trigger actuated switch device having adjustable stop means for varying the stroke of the trigger and further including locking means for releasably locking the trigger in any andall of its stopped positions.
  • Still another object of the present invention is the provision of a trigger actuated switch device capable of fulfilling the aforementioned objects and also being capable of providing precision-like control of the tool trigger thereby to provide "corresponding control of the speed of the associated motor.
  • FIG. 1 is a partially sectioned side elevation of one embodiment of the trigger actuated switch device of the present invention showing the same mounted in a portable tool, such as a power drill;
  • FIG. 2 is a partially sectioned top plan View of the switch showing the trigger in its fully extended or off position;
  • FIG. 3 is a partially sectioned top plan view of the switch device showing the trigger in one of its stopped positions;
  • FIG. 4 is a partially sectioned side elevation of the switch device in the configuration illustrated in FIG. 3;
  • FIG. 5 is an exploded, perspective view of the trigger operated switch device.
  • the illustrated embodiment of the trigger actuated switch device of this invention includes a trigger 10 of unitary construction having a finger engageable portion 10a and a stem portion 10b.
  • the switch unit further includes a casing 11 having a sheet metal member 12 defining a guideway slidably receiving stem portion 10b of the trigger.
  • Stem portion 10b includes or carries an upwardly extending projection or button 14 which is received in an elongated slot 15 formed in the top wall of casing 12 Abutting engagement of the button 14 with opposite ends of the slot 15 determines the maximum stroke of the trigger.
  • a spring 16 contained within the casing 12 yieldably urges the trigger 10 to its outermost or extended position, i.e., the off position, which is established by abutting engagement of button 14 with the front end of slot 15 (see FIG. 1).
  • One end of spring 16 abuts an end plate 18 of the casing 12, and the other end of the spring is received within a cavity 19 formed in trigger stem 10b.
  • Casing 11 includes suitable means 20 defining a compartment adapted to receive the various components of a control system, such as the variable speed control system disclosed and claimed in the aforementioned Gawron patent.
  • the Gawron system includes a variabe resistor which is operated by trigger movement.
  • this variable resistor may consist of a contact carried by trigger stem 10b and slidable along a rectilinear contact strip of resistance material (not shown) supported by member 20 so that the resistance is changed by movement :of the trigger.
  • this change of resistance causes a corresponding change in the speed of the tool motor.
  • stem 10b and member 20 will also include cooperating contacts and contact strips constituting the on-off and by-pass switches referred to in the above mentioned Gawron patent.
  • the finger engageable portion 10a of the trigger includes a recess 22, and the stem portion 10b of the trigger includes a recess 23.
  • Recesses 22 and 23 are in communication with each other.
  • a lug or nut 24 is received within recesses 22, 23.
  • Recess 22 has opposite side walls, and recess 23 has one side wall, all of which side walls act to prevent rotation of lug 23 as will become apparent from the following specification.
  • Lug 24 includes a threaded through bore 25.
  • a catch plate 26, either integral with plate 24 or suitably secured thereto, includes an opening 27.
  • Finger engageable portion 10a of the trigger has a cavity or cut-out 29 at the front thereof.
  • Portion 10a of the trigger also has a bore 30 with the central axis thereof extending parallel with the direction of trigger movemeint. Bore 30 opens at one end of its ends into recess 22 and opens at its other end into the cavity or cut-out 29.
  • An adjustment screw 32 has a cylindrical portion 33 rotatably received in bore 30 of trigger portion 10a. This cylindrical portion includes an annular groove 33a. Trigger portion 10a includes a cross bore 34 in which a pin 35 is received. As noted in FIG. 1, the pin 35 extends into annular groove 33a of the adjustment screw. It will be apparent that the adjustment screw 32 may be rotated relative to the trigger but tha axial movement beween the adjustment screw and the trigger is prevented by the pin'35.
  • the adjustment screw further includes a knurled knob or button portion 37 which is received within the cut-out or cavity 29 of the trigger 10.
  • the adjustment screw 32 has a threaded shank por- 1) tion 38 threadingly received in the threaded opening 25 of the lug 24. This threaded portion of the shank actually serves to support the lug on the trigger. As mentioned above, the various side walls of recesses 22 and 23 prevent rotation of the lub 24. Therefore, it will be apparent that upon rotation of the adjustment screw 32, lug 24 will be moved along the shank 38 i.e., relative to the trigger, depending on the direction of rotation of the adjustment screw 32. Movement of lug 24 causes movement of plate 26 as these two members are either integral or suitably secured together.
  • Lug 24 includes a lip or abutment face 240, which face is arranged for abutting engagement with edge 12a of the casing (see FIGS. 4 and 5). Abutting engagement of face 24a and 12a stops the trigger, i.e., limits the amount of movement or the stroke thereof.
  • One side wall of the casing 12 includes a bent-out portion 12b (FIGS. 2 and 3) having an opening 39 therein.
  • a sleeve 40 includes a reduced-in-diameter portion 40a at one end thereof, which portion is fitted within the opening 39. This engagement between opening 39 and reduced-in-diameter portion 40a serves as a means for mounting the sleeve 40 on the casing 12.
  • Sleeve 40 includes a first bore 40b and a coaxial, largerin-diameter bore 40c.
  • a pin 42 having a head 42a is slidably mounted in bore 4017.
  • a button 43 is secured to the outer end of pin 42, which button is slidably received within bore 40c.
  • a spring 44 encircles pin 42. One end of the spring abuts an annular shoulder between bores 40b, 40c, and the other end of the spring abuts the inner end of button 43.
  • the spring 44 acts to urge pin 42 and button 43 outwardly with the head 42a of the pin against reduced-indiameter end 40a of the sleeve (see FIG. 3).
  • pin 42 is adapted to be insertcd in opening 27 of the plate 26 for locking the trigger in its fully depressed or stopped position which is determined by abutting engagement of button 14 with the inner end of slot 15 and in any stopped position determined by abutting engagement of face 24a with casing edge 120.
  • trigger actuated switch device For purposes of the following discussion of the operation of the trigger actuated switch device of this invention, assume that the same is mounted within the pistol grip portion of a portable tool, such as a power drill.
  • the pistol grip portion of a power tool is fragmentarily illustrated in FIG. 1 and designated by the numeral 45.
  • trigger portion a When the trigger operated switch unit is mounted in the handle grip portion of the tool, trigger portion a extends outwardly through an opening 46 in the tool housing thereby to permit manual depression of the trigger.
  • the tool housing also includes an opening (not shown) for accommodating sleeve 40 of the locking mechanism.
  • the compartment 20 contains the various components of the variable speed control system covered in the aforesaid Gawron patent.
  • the trigger 10 will be connected to the variable resistor in such circuit so that as the trigger is depressed, the speed of the associated tool motor is correspondingly increased.
  • knurled knob 37 of the adjustment screw 32 is rotated for moving lug 24 to the left until it is fully seated within the recess 22 (FIGS. 1 and 2).
  • the trigger may be squeezed or depressed until the button 14 comes into abutting engagement with the inner end of slot 15. With the trigger in this position, i.e., its maximum position, maximum speed of the associated tool is obtained.
  • face 24a may be in abutting engagement with edge 12a or there may be a slight space between these two surfaces.
  • knob 37 of the adjustment screw is rotated for running lug 24 to the right as illustrated in the drawings.
  • indicia (not shown) on either the button 37 or the trigger or both could be provided to indicate various speeds or trigger positions.
  • opening 27 in plate 26 is in alignment with pin 42. Accordingly, if it is desired to lock the trigger in its stopped position, i.e., its position wherein face 24a is in abutting engagement with edge 12a, button 43 is depressed thereby causing head 42a of the pin to be forced through the opening 27 in the plate 26. Releasing of the trigger will allow the spring 16 to force the trigger slightly forwardly until the trailing portion of the opening 27 engages the shank of the pin 42 adjacent the head 42a.
  • the trigger is unlocked by squeezing the trigger slightly until the opening 27 is brought into alignment with head 42a; when the trigger is in this position, spring 44 will act to force pin 42 outwardly clear of the plate 26, thereby releasingthe trigger.
  • spring 44 will act to force pin 42 outwardly clear of the plate 26, thereby releasingthe trigger.
  • the present invention provides a unique means for adjusting or varying the stroke of the tool trigger and for locking the tool trigger when it is squeezed and stopped by operation of the adjustable stop.
  • the knob 37 can be readily manipulated; this knob does not require an additional opening in the power tool housing as the former is contained within the tool trigger.
  • the locking mechanism is actuated first and the adjustment screw then rotated, the latter acts as a vernier for providing precision-like control of the speed of the associated tool motor.
  • a trigger actuated switch device for mounting in said tool with the trigger extending through said aperture for manual depression, said switch device comprising, a casing, a trigger mounted by the casing foroscilla ting movement, resilient means carried by the casing and engaged with the trigger for urging the same to its extended positiofnsaid trigger including guide means extending in parallel relation with the direction of trigger movement, lug means carried by said trigger' and engaged with said guide means for movement in either direction therealong, a manually operable adjustment means including a member ro'tatably carried by the triggerand engaged with said l'ug means for moving the same in either direction along said path of movement thereof, and abutment means on said casing arranged to be engaged by said lug means upon depression of the trigger thereby to limit the amount of movement of the latter for establishing
  • a trigger actuated electric switch device for mounting in said tool with the trigger extending through said aperture for manual depression, said switch device comprising, a casing and a trigger mounted thereby for oscillating movement, said device also including resilient means interposed between said casing and said trigger for urging the latter to its extended position, abutment means carried by said casing, adjustment means carried by said trigger including an element movable relative to the latter to and away from said abutment means along a path corresponding to' the path of movement of the trigger, said element being arranged toabut said abutment means upon depression of the trigger thereby to limit the amount of movement of the latter for establishing a selected speed of the tool motor, said device including locking means engageable with said element for locking said trigger in any one of its positions determined by engagement of said element with said abutment means.
  • said adjustment means includes a button rotatably mounted in a bore in said trigger and being exposed for manual control.
  • said adjustment means further includes a screw connected to said button for rotation thereby, and wherein said lug means includes a member having an opening threadingly receiving said screw.
  • trigger locking means including a locking pin, which locking means is mounted on said casing for extending through a bore in the tool housing thereby to expose said pin for manual depression, catch means carried by said lug means and adapted to be releasably locked .by said pin when the catch means is aligned with the pin.
  • a trigger actuated switch device for mounting in the housing of a portable toolwith the trigger extending through a housing aperture for manual depression, wherein the tool is of the typeadapted to contain a control system capable of varying the speed of the tool motor in response to the amount of trigger movement, said switch device comprising, a casing, a trigger mounted by the casing for reciprocating movement relative thereto, resilient means carried by the casing and engaged with the trigger for urging the same to its extended position, said trigger including means defining a guideway extending parallel with the direction of trigger movement, a lug in said guideway and adapted for movement in either direc- 6 tion therealong, which lug includes a threaded opening extending parallel with the direction of movement of the lug, said trigger including a bore extending parallel with the direction of trigger movement and opening at the front of said trigger, adjustment screw means rotatably mounted in said bore and having a portion thereof disposed exteriorly of said trigger adjacent the front thereof, means for preventing axial movement of said adjustment screw means relative to said trigger, said adjustment
  • trigger locking means including a locking pin, which locking means is mounted on said casing for extending through a bore in the tool housing thereby to expose said pin for manual depression, catch means carried by said lug and adapted to be releasably locked by said pin when the catch means is aligned with the pin.
  • a trigger actuated switch device for mounting in the housing of a portable tool with the trigger extending through a housing aperture for manual depression, wherein the tool is of the type adapted to contain a control system capable of varying the speed of the tool motor in response to the amount of trigger movement, said switch device comprising, a casing, a trigger mounted by the casing for reciprocal movement relative thereto, resilient means carried by the casing and engaged with the trigger for urging the same to its extended position, said trigger including means defining a guideway extending parallel with the direction of trigger movement, a lug in said guideway and adapted for movement in either direction therealong, which lug includes a threaded opening extending parallel with the direction of movement of the lug, said trigger including a cavity at the front thereof, said trigger further including a bore extending parallel with the direction of trigger movement and opening into said cavity, an adjustment screw rotatably mounted in said bore and having the head thereof received within said cavity, means for preventing axial movement of said adjustment screw relative to the trigger, said adjustment screw having a
  • said catch means includes a plate having an opening therein for receiving said pin.
  • the switch device according to claim 8 further defined by, said casing including a compartment adapted to receive the components of a solid state speed control circuit.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US516331A 1965-12-27 1965-12-27 Trigger actuated switch device Expired - Lifetime US3309484A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL134359D NL134359C (xx) 1965-12-27
US516331A US3309484A (en) 1965-12-27 1965-12-27 Trigger actuated switch device
GB56926/66A GB1120010A (en) 1965-12-27 1966-12-20 Trigger actuated control device
DE1563788A DE1563788C3 (de) 1965-12-27 1966-12-23 Handbetätigtes Stellglied zur stufenlosen Drehzahlsteuerung eines Elektrowerkzeuges
FR89046A FR1516882A (fr) 1965-12-27 1966-12-27 Dispositif de commande à détente, notamment pour outils portatifs à moteur électrique
BE691830D BE691830A (xx) 1965-12-27 1966-12-27
CH1859166A CH452662A (de) 1965-12-27 1966-12-27 Durch eine Taste betätigbare Schaltervorrichtung für ein Handwerkzeug
NL6618214A NL6618214A (xx) 1965-12-27 1966-12-27
US26781D USRE26781E (en) 1965-12-27 1968-04-04 Trigger actuated switch device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US516331A US3309484A (en) 1965-12-27 1965-12-27 Trigger actuated switch device
US71979268A 1968-04-04 1968-04-04

Publications (1)

Publication Number Publication Date
US3309484A true US3309484A (en) 1967-03-14

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ID=27058807

Family Applications (2)

Application Number Title Priority Date Filing Date
US516331A Expired - Lifetime US3309484A (en) 1965-12-27 1965-12-27 Trigger actuated switch device
US26781D Expired USRE26781E (en) 1965-12-27 1968-04-04 Trigger actuated switch device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US26781D Expired USRE26781E (en) 1965-12-27 1968-04-04 Trigger actuated switch device

Country Status (6)

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US (2) US3309484A (xx)
BE (1) BE691830A (xx)
CH (1) CH452662A (xx)
DE (1) DE1563788C3 (xx)
GB (1) GB1120010A (xx)
NL (2) NL6618214A (xx)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378662A (en) * 1967-07-25 1968-04-16 Carling Electric Inc Variable speed control trigger for electric switch
DE7042014U (de) 1971-02-25 Licentia Elektromotorisch angetriebene Hand- oder Schlagbohrmaschine mit regelbarer Drehzahl
US3590193A (en) * 1968-05-29 1971-06-29 Skil Corp Trigger-actuated switch device with adjustment means for establishing a plurality of predetermined trigger positions
US3603757A (en) * 1969-09-18 1971-09-07 Lucerne Products Inc Adjustable switch device
US3711666A (en) * 1971-04-29 1973-01-16 Lucerne Products Inc Bell-crank lever trigger switch with trigger depression adjustment means
DE2334013A1 (de) * 1973-07-04 1975-01-23 Metabowerke Kg Elektromotorisch angetriebene handoder schlagbohrmaschine mit regelbarer drehzahl
DE2444739A1 (de) * 1974-09-19 1976-04-08 Scintilla Ag Vorrichtung zur drehzahlsteuerung oder -regelung eines in eine handwerkzeugmaschine eingebauten elektromotors
US4271342A (en) * 1980-05-15 1981-06-02 The Singer Company Lock-on trigger switch with integral return spring
EP0438611A1 (de) * 1990-01-20 1991-07-31 Dolmar GmbH Drehsicherung für ein drehbar gelagertes Teil, vorzugsweise für ein Schneidwerkzeug eines Arbeitsgerätes, insbesondere eines Freischneidegerätes
US5136130A (en) * 1991-04-02 1992-08-04 Waxing Corporation Of America Locking actuator trigger button for electrical switch
US5414793A (en) * 1993-04-27 1995-05-09 Ryobi Motor Products Corp. Speed control mechanism for a power tool
US5428197A (en) * 1993-06-01 1995-06-27 Ryobi Motor Products Corp. Electric tool actuator switch
US6273302B1 (en) * 1999-04-13 2001-08-14 B.X.T. Trading Marketing E Consultores Lda Motorized tool for extruding semi-dense materials such as sealants and similar substances
JP2014197469A (ja) * 2013-03-29 2014-10-16 株式会社マキタ トリガースイッチ
US9321112B2 (en) 2011-05-18 2016-04-26 Black & Decker Inc. Power saw tool
WO2017089820A3 (en) * 2015-11-27 2017-07-13 Ironburg Inventions Limited Games controller and trigger therefor
US9899899B2 (en) 2013-10-25 2018-02-20 Black & Decker Inc. Handheld power tool with compact AC switch
USD887806S1 (en) 2018-04-03 2020-06-23 Milwaukee Electric Tool Corporation Jigsaw
US10835972B2 (en) 2018-03-16 2020-11-17 Milwaukee Electric Tool Corporation Blade clamp for power tool
US11014176B2 (en) 2018-04-03 2021-05-25 Milwaukee Electric Tool Corporation Jigsaw
US20210304975A1 (en) * 2018-08-24 2021-09-30 Omron Corporation Trigger switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763455B1 (de) * 1968-05-31 1972-03-09 Metabowerke Kg Vorrichtung zur einstellung des sollwertes an einem elektroni schen drehzahlregler eines ein elektrowerkzeug antreibenden elektromotors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1712261A (en) * 1926-03-22 1929-05-07 Goodell Pratt Company Switch for power drills

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1712261A (en) * 1926-03-22 1929-05-07 Goodell Pratt Company Switch for power drills

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7042014U (de) 1971-02-25 Licentia Elektromotorisch angetriebene Hand- oder Schlagbohrmaschine mit regelbarer Drehzahl
US3378662A (en) * 1967-07-25 1968-04-16 Carling Electric Inc Variable speed control trigger for electric switch
US3590193A (en) * 1968-05-29 1971-06-29 Skil Corp Trigger-actuated switch device with adjustment means for establishing a plurality of predetermined trigger positions
US3603757A (en) * 1969-09-18 1971-09-07 Lucerne Products Inc Adjustable switch device
US3711666A (en) * 1971-04-29 1973-01-16 Lucerne Products Inc Bell-crank lever trigger switch with trigger depression adjustment means
DE2334013A1 (de) * 1973-07-04 1975-01-23 Metabowerke Kg Elektromotorisch angetriebene handoder schlagbohrmaschine mit regelbarer drehzahl
DE2444739A1 (de) * 1974-09-19 1976-04-08 Scintilla Ag Vorrichtung zur drehzahlsteuerung oder -regelung eines in eine handwerkzeugmaschine eingebauten elektromotors
US4271342A (en) * 1980-05-15 1981-06-02 The Singer Company Lock-on trigger switch with integral return spring
EP0438611A1 (de) * 1990-01-20 1991-07-31 Dolmar GmbH Drehsicherung für ein drehbar gelagertes Teil, vorzugsweise für ein Schneidwerkzeug eines Arbeitsgerätes, insbesondere eines Freischneidegerätes
US5136130A (en) * 1991-04-02 1992-08-04 Waxing Corporation Of America Locking actuator trigger button for electrical switch
WO1992017894A1 (en) * 1991-04-02 1992-10-15 Waxing Corporation Of America Locking trigger button for electrical switch
US5414793A (en) * 1993-04-27 1995-05-09 Ryobi Motor Products Corp. Speed control mechanism for a power tool
US5428197A (en) * 1993-06-01 1995-06-27 Ryobi Motor Products Corp. Electric tool actuator switch
US6273302B1 (en) * 1999-04-13 2001-08-14 B.X.T. Trading Marketing E Consultores Lda Motorized tool for extruding semi-dense materials such as sealants and similar substances
US9321112B2 (en) 2011-05-18 2016-04-26 Black & Decker Inc. Power saw tool
JP2014197469A (ja) * 2013-03-29 2014-10-16 株式会社マキタ トリガースイッチ
US9899899B2 (en) 2013-10-25 2018-02-20 Black & Decker Inc. Handheld power tool with compact AC switch
WO2017089820A3 (en) * 2015-11-27 2017-07-13 Ironburg Inventions Limited Games controller and trigger therefor
CN108472542A (zh) * 2015-11-27 2018-08-31 铁堡发明有限公司 游戏控制器及为此的触发器
CN108472542B (zh) * 2015-11-27 2021-07-06 铁堡发明有限公司 游戏控制器及为此的触发器
US10835972B2 (en) 2018-03-16 2020-11-17 Milwaukee Electric Tool Corporation Blade clamp for power tool
USD887806S1 (en) 2018-04-03 2020-06-23 Milwaukee Electric Tool Corporation Jigsaw
US11014176B2 (en) 2018-04-03 2021-05-25 Milwaukee Electric Tool Corporation Jigsaw
US11813682B2 (en) 2018-04-03 2023-11-14 Milwaukee Electric Tool Corporation Jigsaw
US20210304975A1 (en) * 2018-08-24 2021-09-30 Omron Corporation Trigger switch

Also Published As

Publication number Publication date
DE1563788A1 (de) 1970-04-23
DE1563788B2 (de) 1971-04-29
GB1120010A (en) 1968-07-17
CH452662A (de) 1968-05-31
NL134359C (xx)
BE691830A (xx) 1967-05-29
USRE26781E (en) 1970-02-03
DE1563788C3 (de) 1978-05-11
NL6618214A (xx) 1967-06-28

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