EP0371923A1 - Foot-pedal switch for operating an electric machine - Google Patents

Foot-pedal switch for operating an electric machine Download PDF

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Publication number
EP0371923A1
EP0371923A1 EP89810886A EP89810886A EP0371923A1 EP 0371923 A1 EP0371923 A1 EP 0371923A1 EP 89810886 A EP89810886 A EP 89810886A EP 89810886 A EP89810886 A EP 89810886A EP 0371923 A1 EP0371923 A1 EP 0371923A1
Authority
EP
European Patent Office
Prior art keywords
pedal
machine
foot
handle
housing
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.)
Granted
Application number
EP89810886A
Other languages
German (de)
French (fr)
Other versions
EP0371923B1 (en
Inventor
Antonio Jimenez
Michel Combepine
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.)
Mefina SA
Original Assignee
Mefina SA
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 Mefina SA filed Critical Mefina SA
Publication of EP0371923A1 publication Critical patent/EP0371923A1/en
Application granted granted Critical
Publication of EP0371923B1 publication Critical patent/EP0371923B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/14—Devices for changing speed or for reversing direction of rotation
    • D05B69/18—Devices for changing speed or for reversing direction of rotation electric, e.g. foot pedals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/26—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for operation by a part of the human body other than the hand, e.g. by foot

Definitions

  • Control pedals are known for an electrical machine, in particular for a sewing machine, comprising a housing and a movable member shaped to be actuated by the foot of the user, this member acting on a variable electrical element allowing the activation and adjustment of the machine speed, an electric cord being provided to connect the pedal to the machine.
  • the present invention aims to make pedals of this kind more practical to use.
  • the pedal which is the subject of the invention is characterized in that said member is in the form of a handle capable of occupying two positions, one of which is used for transporting the pedal and the other for controlling the speed of the machine.
  • the sewing machine shown in FIG. 1 usually comprises a base 1, a lower arm 2, an upright 3 and an upper arm 4 carrying a fabric press 5.
  • the supply of this electric machine is done by means of a plug 6 intended to be engaged in an outlet of the distribution network, the current being brought to a control pedal 7, which is connected by an electric cord 8 to the electric motor. that the sewing machine contains.
  • the pedal 7 has a movable member 9 intended to be actuated by the foot of the user, the heel of which normally rests on a support plate 10. This member 9 allows the machine to start up and its speed to be adjusted. sewing.
  • the pedal 7 comprises a housing 11 and, on two lateral faces of this housing, a portion 12 forming a coil to allow the cord carrying the plug 6 to be wound therein, the cord 8 respectively.
  • FIG. 2 shows the pedal 7 in the non-use position, in which the member 9, which is in the form of a handle, is folded over the plate 10. It can also be seen that the electrical cord 8 has been wound around its portion forming a coil. Finally, FIG. 2 also shows in phantom, the two extreme positions of the member 9 for the position of use, namely the position 9a corresponding to the stopping of the machine and the position 9b corresponding to its maximum speed. .
  • the movable member 9 is U-shaped comprising a central branch 13 and two lateral branches 14, the free ends of the latter being connected together by a rod 15.
  • This rod pivots in support bearings 16 and 17 integral with the side walls of the housing 11.
  • the rod 15 carries two cams 18 and 19.
  • the cam 18 acts on a switch 20 and is shaped to act on the switch in order to interrupt the supply of the machine, as soon as the member 9 is moved from its position 9a to be brought into its position allowing transport and storing the pedal when not in use. This provides a higher level of safety, making it possible to avoid any untimely start-up of the machine, for example, in the event of a fault in an electrical element supplying the motor.
  • the other cam 19 has the shape of a finger acting on the rod 21, such as a potentiometer, this rod being returned upwards by a spring 22 housed in a housing 23.
  • the rod 15 still carries a disc 24 having a blind bore 25, in which is housed a ball 26 subjected to the action of a spring 27, this ball is engaged with a recess 28 of the bearing 16.
  • This arrangement forms an elastic notch to maintain the member 9 in its transport position.
  • control pedal has been described with reference to use for a sewing machine, but it goes without saying that it can be used for any device or machine whose operation is to be controlled using a foot pedal. ordered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Mechanical Control Devices (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

The foot-pedal switch (7) for an electric machine (3) comprises a movable member (9) articulated on a base (11) and capable of being actuated by the foot of the user, whose heel rests on the plate (10). When the pedal (7) is not in use, the member (9) can be turned down against the plate (10), whilst the cord (8) and that equipped with the plug (6) are wound round the portion (12) forming a reel. …<IMAGE>…

Description

On connaît des pédales de commande pour machine électrique, notamment pour machine à coudre, comprenant un boîtier et un organe mobile conformés pour être actionnés par le pied de l'usager, cet organe agissant sur un élément électrique variable permettant la mise en fonction et le réglage de la vitesse de la machine, un cordon électrique étant prévu pour relier la pédale à la machine.Control pedals are known for an electrical machine, in particular for a sewing machine, comprising a housing and a movable member shaped to be actuated by the foot of the user, this member acting on a variable electrical element allowing the activation and adjustment of the machine speed, an electric cord being provided to connect the pedal to the machine.

La présente invention a pour but de rendre les pédales de ce genre plus pratiques à l'emploi.The present invention aims to make pedals of this kind more practical to use.

A cet effet, la pédale faisant l'objet de l'invention est caractéri­sée en ce que ledit organe est en forme de poignée susceptible d'occuper deux positions dont une est utilisée pour le transport de la pédale et l'autre pour le contrôle de la vitesse de la machine.To this end, the pedal which is the subject of the invention is characterized in that said member is in the form of a handle capable of occupying two positions, one of which is used for transporting the pedal and the other for controlling the speed of the machine.

Le dessin annexé montre schématiquement et à titre d'exemple, une forme d'exécution de la pédale selon l'invention.

  • La figure 1 montre une machine à coudre équipée de cette pédale.
  • La figure 2 est une vue latérale de cette pédale.
  • La figure 3 montre en détail une partie du mécanisme intérieur de la pédale.
  • La figure 4 est une vue en plan de cette pédale avec un arrache­ment partiel.
The accompanying drawing shows schematically and by way of example, an embodiment of the pedal according to the invention.
  • Figure 1 shows a sewing machine fitted with this pedal.
  • Figure 2 is a side view of this pedal.
  • Figure 3 shows in detail part of the interior mechanism of the pedal.
  • Figure 4 is a plan view of this pedal with a partial cutaway.

La machine à coudre représentée à la figure 1 comprend de façon habituelle un socle 1, un bras inférieur 2, un montant 3 et un bras supérieur 4 portant un presse-étoffe 5.The sewing machine shown in FIG. 1 usually comprises a base 1, a lower arm 2, an upright 3 and an upper arm 4 carrying a fabric press 5.

L'alimentation de cette machine électrique se fait au moyen d'une fiche 6 destinée à être engagée dans une prise du réseau de distri­bution, le courant étant amené à une pédale de commande 7, qui est reliée par un cordon électrique 8 au moteur électrique que contient la machine à coudre.The supply of this electric machine is done by means of a plug 6 intended to be engaged in an outlet of the distribution network, the current being brought to a control pedal 7, which is connected by an electric cord 8 to the electric motor. that the sewing machine contains.

La pédale 7 présente un organe mobile 9 destiné a être actionné par le pied de l'usager, dont le talon repose normalement sur une plaque d'appui 10. Cet organe 9 permet la mise en fonction de la machine et le réglage de sa vitesse de couture.The pedal 7 has a movable member 9 intended to be actuated by the foot of the user, the heel of which normally rests on a support plate 10. This member 9 allows the machine to start up and its speed to be adjusted. sewing.

La pédale 7 comprend un boîtier 11 et, sur deux faces latérales de ce boîtier, une portion 12 formant bobine pour permettre d'y enrouler le cordon portant la fiche 6, respectivement le cordon 8.The pedal 7 comprises a housing 11 and, on two lateral faces of this housing, a portion 12 forming a coil to allow the cord carrying the plug 6 to be wound therein, the cord 8 respectively.

La figure 2 montre la pédale 7 en position de non utilisation, dans laquelle l'organe 9, qui est en forme de poignée, est rabattu au-dessus de la plaque 10. On voit également que le cordon électrique 8 a été enroulé autour de sa portion formant bobine. Enfin, la figure 2 montre encore en trait mixte, les deux positions extrêmes de l'organe 9 pour la position de l'utilisation, à savoir la position 9a correspondant à l'arrêt de la machine et la position 9b correspondant à sa vitesse maximale.FIG. 2 shows the pedal 7 in the non-use position, in which the member 9, which is in the form of a handle, is folded over the plate 10. It can also be seen that the electrical cord 8 has been wound around its portion forming a coil. Finally, FIG. 2 also shows in phantom, the two extreme positions of the member 9 for the position of use, namely the position 9a corresponding to the stopping of the machine and the position 9b corresponding to its maximum speed. .

Comme le montrent les figures 3 et 4, l'organe mobile 9 est en forme de U comprenant une branche centrale 13 et deux branches laté­rales 14, les extrémités libres de ces dernières étant reliées entre elles par une tige 15. Cette tige pivote dans des paliers supports 16 et 17 soli­daires des parois latérales du boîtier 11.As shown in Figures 3 and 4, the movable member 9 is U-shaped comprising a central branch 13 and two lateral branches 14, the free ends of the latter being connected together by a rod 15. This rod pivots in support bearings 16 and 17 integral with the side walls of the housing 11.

La tige 15 porte deux cames 18 et 19.The rod 15 carries two cams 18 and 19.

La came 18 agit sur un interrupteur 20 et est conformée pour agir sur l'interrupteur afin d'interrompre l'alimentation de la machine, dès que l'organe 9 est écarté de sa position 9a pour être amené dans sa position permettant le transport et le rangement de la pédale lorsqu'elle n'est pas utilisée. On obtient ainsi une securité supérieure permettant d'éviter toute mise en marche intempestive de la machine, par exemple, dans le cas d'un défaut d'un élément électrique assurant l'alimentation du moteur.The cam 18 acts on a switch 20 and is shaped to act on the switch in order to interrupt the supply of the machine, as soon as the member 9 is moved from its position 9a to be brought into its position allowing transport and storing the pedal when not in use. This provides a higher level of safety, making it possible to avoid any untimely start-up of the machine, for example, in the event of a fault in an electrical element supplying the motor.

L'autre came 19 présente la forme d'un doigt venant agir sur la tige 21, tel qu'un potentiomètre, cette tige étant rappelée vers le haut par un ressort 22 logé dans un boîtier 23.The other cam 19 has the shape of a finger acting on the rod 21, such as a potentiometer, this rod being returned upwards by a spring 22 housed in a housing 23.

Il y a lieu de remarquer que la tige 15 porte encore un disque 24 présentant un perçage borgne 25, dans lequel est logée une bille 26 soumise à l'action d'un ressort 27, cette bille est en prise avec une creusure 28 du palier 16.It should be noted that the rod 15 still carries a disc 24 having a blind bore 25, in which is housed a ball 26 subjected to the action of a spring 27, this ball is engaged with a recess 28 of the bearing 16.

Cette disposition forme un cran élastique pour maintenir l'orga­ne 9 dans sa position de transport.This arrangement forms an elastic notch to maintain the member 9 in its transport position.

La pédale de commande a été décrite en référence à une utili­sation pour une machine à coudre, mais il va de soi, qu'elle peut être utili­sée pour tous appareils ou machines dont on veut contrôler le fonction­nement à l'aide d'une pédale de commande.The control pedal has been described with reference to use for a sewing machine, but it goes without saying that it can be used for any device or machine whose operation is to be controlled using a foot pedal. ordered.

De toute façon, on peut prévoir de nombreuses variantes d'exécu­tions et, dans le cas où la machine est alimentée directement à partir du réseau, un seul cordon électrique est nécessaire pour relier la pédale à la machine à coudre.In any case, there are many variants of executions and, in the case where the machine is supplied directly from the network, a single electrical cord is necessary to connect the pedal to the sewing machine.

Claims (5)

1. Pédale de commande pour machine électrique, notamment pour machine à coudre, comprenant un boîtier et un organe mobile conformés pour être actionnés par le pied de l'usager, cet organe agissant sur un élément électrique variable permettant la mise en fonction et le réglage de la vitesse de la machine, un cordon électrique étant prévu pour relier la pédale à la machine, caractérisé en ce que ledit organe est en forme de poignée susceptible d'occuper deux positions dont une est utilisée pour le transport de la pédale et l'autre pour la mise en fonction et le contrôle de la vitesse de la machine.1. Control pedal for an electrical machine, in particular for a sewing machine, comprising a housing and a movable member shaped to be actuated by the foot of the user, this member acting on a variable electrical element allowing the setting in function and the adjustment of the speed of the machine, an electric cord being provided for connecting the pedal to the machine, characterized in that said member is in the form of a handle capable of occupying two positions, one of which is used for transporting the pedal and the other for starting and controlling the speed of the machine. 2. Pédale selon la revendication 1, caractérisée en ce que la poignée agit sur un interrupteur destiné à déconnecter l'élément électrique lorsque la poignée est placée dans sa position correspondant au transport.2. Pedal according to claim 1, characterized in that the handle acts on a switch intended to disconnect the electrical element when the handle is placed in its position corresponding to transport. 3. Pédale selon la revendication 2, caractérisée en ce que la poignée est en forme générale de U dont les branches libres sont articulées par rapport au boîtier.3. Pedal according to claim 2, characterized in that the handle is generally U-shaped whose free arms are articulated relative to the housing. 4. Pédale selon la revendication 3, caractérisée en ce qu'elle comprend un cran élastique pour la maintenir dans sa position de transport.4. Pedal according to claim 3, characterized in that it comprises an elastic notch to maintain it in its transport position. 5. Pédale selon l'une des revendications précédentes, caractérisée en ce que le boîtier présente sur une de ses faces extérieures au moins une portion formant bobine pour permettre d'y enrouler le cordon lorsque la pédale n'est pas utilisée.5. Pedal according to one of the preceding claims, characterized in that the housing has on one of its outer faces at least a portion forming a coil to allow the cord to be wound there when the pedal is not used.
EP89810886A 1988-11-28 1989-11-20 Foot-pedal switch for operating an electric machine Expired - Lifetime EP0371923B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4412/88 1988-11-28
CH4412/88A CH676530A5 (en) 1988-11-28 1988-11-28

Publications (2)

Publication Number Publication Date
EP0371923A1 true EP0371923A1 (en) 1990-06-06
EP0371923B1 EP0371923B1 (en) 1993-07-07

Family

ID=4275659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810886A Expired - Lifetime EP0371923B1 (en) 1988-11-28 1989-11-20 Foot-pedal switch for operating an electric machine

Country Status (14)

Country Link
US (1) US5083069A (en)
EP (1) EP0371923B1 (en)
JP (1) JPH02182290A (en)
CN (1) CN1024577C (en)
AU (1) AU625728B2 (en)
BR (1) BR8905981A (en)
CA (1) CA2003967A1 (en)
CH (1) CH676530A5 (en)
DD (1) DD289858A5 (en)
DE (1) DE68907469T2 (en)
ES (1) ES2042065T3 (en)
PT (1) PT92417B (en)
SU (1) SU1766267A3 (en)
ZA (1) ZA898421B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8184457B2 (en) 2006-07-27 2012-05-22 Koninklijke Philips Electronics N.V. Switch mode power supply for in-line voltage applications

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
US6064015A (en) * 1997-10-14 2000-05-16 Conntrol, International, Inc. Foot switches
JP2007229291A (en) * 2006-03-02 2007-09-13 Brother Ind Ltd Embroidery machine
US8794650B2 (en) 2012-08-09 2014-08-05 Jefferson S Williams Hands free bicycle maintenance pedaler
CN102995315B (en) * 2012-11-26 2015-07-22 吴江市科时达纺织有限公司 Pedal device of sewing machine
US9657865B2 (en) 2015-06-12 2017-05-23 Federal Signal Corporation Two-stage valve actuation system
CN104911840A (en) * 2015-06-23 2015-09-16 杰克缝纫机股份有限公司 Apparatus for controlling rotating speed of motor by use of pedal
CN110485073A (en) * 2018-05-15 2019-11-22 丰田纺织株式会社 Sewing machine
US11062859B1 (en) * 2019-07-22 2021-07-13 Itool Equipment Holding Llc Foot switch-including adaptor assembly for battery-powered hand tool

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FR1469594A (en) * 1966-01-06 1967-02-17 Machine or machine tool remote control pedal combining great simplicity of construction with great safety of use
DE1588913A1 (en) * 1967-07-18 1970-12-23 Dentaltechnik Potsdam Veb Actuating device for the starter, especially for engines in the dental laboratory
FR2456378A1 (en) * 1979-05-07 1980-12-05 Reiter John Switch actuating mechanism for machine tools - includes broad surface member linked to toggle lever and latch mechanism
US4296702A (en) * 1978-03-23 1981-10-27 Dorina Nahmaschinen Gmbh Storage compartment for sewing machine foot controller
US4751354A (en) * 1987-03-02 1988-06-14 Molded Parts Specialists Electric outboard motor control switch

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US3427545A (en) * 1967-11-09 1969-02-11 Mercury Electric Products Mfg Carbon-pile rheostat of the foot operated type
US3898542A (en) * 1974-04-01 1975-08-05 Singer Co Sewing machine motor speed controller assembly
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1469594A (en) * 1966-01-06 1967-02-17 Machine or machine tool remote control pedal combining great simplicity of construction with great safety of use
DE1588913A1 (en) * 1967-07-18 1970-12-23 Dentaltechnik Potsdam Veb Actuating device for the starter, especially for engines in the dental laboratory
US4296702A (en) * 1978-03-23 1981-10-27 Dorina Nahmaschinen Gmbh Storage compartment for sewing machine foot controller
FR2456378A1 (en) * 1979-05-07 1980-12-05 Reiter John Switch actuating mechanism for machine tools - includes broad surface member linked to toggle lever and latch mechanism
US4751354A (en) * 1987-03-02 1988-06-14 Molded Parts Specialists Electric outboard motor control switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8184457B2 (en) 2006-07-27 2012-05-22 Koninklijke Philips Electronics N.V. Switch mode power supply for in-line voltage applications

Also Published As

Publication number Publication date
CN1043173A (en) 1990-06-20
US5083069A (en) 1992-01-21
ZA898421B (en) 1990-06-27
CA2003967A1 (en) 1990-05-28
DD289858A5 (en) 1991-05-08
SU1766267A3 (en) 1992-09-30
DE68907469D1 (en) 1993-08-12
CN1024577C (en) 1994-05-18
EP0371923B1 (en) 1993-07-07
CH676530A5 (en) 1991-01-31
PT92417A (en) 1990-05-31
ES2042065T3 (en) 1993-12-01
AU625728B2 (en) 1992-07-16
AU4559689A (en) 1990-05-31
DE68907469T2 (en) 1993-11-04
PT92417B (en) 1995-08-09
JPH02182290A (en) 1990-07-16
BR8905981A (en) 1990-06-19

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