US2756318A - Heated foot supports - Google Patents

Heated foot supports Download PDF

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Publication number
US2756318A
US2756318A US415125A US41512554A US2756318A US 2756318 A US2756318 A US 2756318A US 415125 A US415125 A US 415125A US 41512554 A US41512554 A US 41512554A US 2756318 A US2756318 A US 2756318A
Authority
US
United States
Prior art keywords
treadle
feet
foot supports
carrier
foot
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
US415125A
Other languages
English (en)
Inventor
Konrad Luise
Winz Karl
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.)
GM Pfaff AG
Original Assignee
GM Pfaff AG
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 GM Pfaff AG filed Critical GM Pfaff AG
Application granted granted Critical
Publication of US2756318A publication Critical patent/US2756318A/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
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B75/00—Frames, stands, tables, or other furniture adapted to carry sewing machines
    • D05B75/02—Frames, stands, tables, or other furniture adapted to carry sewing machines for drop-head sewing machines

Definitions

  • the invention relates to foot supports, and relates more particularly to foot supports of the type that may be heated to keep warm the feet of a person.
  • the invention provides for the building into the foot support of an electric resistance heat source, to keep the feet of the operator warm.
  • Fig. 1 is an underside perspective view, partly in section, of a pivoted sewing machine foot treadle in accordance with one embodiment of the invention
  • Fig. 2 is a plan view, partly in section, of the embodiment shown in Fig. 1;
  • Fig. 3 is a plan view, partly in section, similar to Fig. 2, but showing a modification
  • Fig. 4 is a sectional view, taken on line 44 of Fig. 3.
  • a board 1 which may be fixed to the frame of a sewing machine.
  • Bearing structures 2 are secured to the upper side of said board 1, and the body of a treadle 3 is tiltably pivoted to said bearing structures 2.
  • the tilting axis of the treadle 3 is indicated at AB in Fig. 2.
  • the treadle 3 carries a bracket 4 2,756,318 Patented July 24, 1956 to which there is connected a rod 5 that supports and journals the lower end of a connecting rod 6.
  • the connecting rod 6 is used for crank-turning the sewing machine in the well-known conventional manner (not shown in detail in the drawing).
  • a groove or recess 7 is provided in the body of the treadle 3.
  • the recess 7 is arranged below the treadle cover 8, which provides the treadle top surface supporting the feet of the operator.
  • Electric resistance heating means comprise a cord 9, leads 14 and 16 and an electric resistor or resistance heater 18.
  • the heater 18 is disposed in the recess 7 below the cover 8.
  • the cord 9 is provided for connection to an electric source (not shown).
  • the cord 9 may be attached to the board 1 by means of cable-clips 10, and protrudes into the body of the treadle 3 from the underside, through a lead-in bushing 12 that is mounted with its base 11 to the underside of the body of the treadle 3.
  • the cord 9 On the interior of the body of the treadle 3, the cord 9 may be secured by means of a cable clamp 13.
  • the two leads 14 and 16 branch out from a point near the cable clamp 13; the lead 14 is conducted to a contact point 15, while the lead 16 is conducted to a contact point 17. Between the contact points 15 and 17 there extends the resistance heater 18 in the groove 7.
  • the axis of the lead-in bushing 12 intersects the axis A-B of tilting of the treadle. This positioning of the bushing 12 has the advantage that the cord 9 will be subjected only to a minimum mechanical action during the treadle oscillations as it protrudes at the center of these oscillations, and will assure trouble-free operation of the heater throughout protracted periods of time.
  • a control switch (not shown) may be provided for connecting the cord 9 to an electric source and respectively for disconnecting it therefrom, and that control switch may either be for manual operation or for foot operation in accordance with well-known conventional principles.
  • a board 19 that supports two bearing structures 20 and 21.
  • the body of a treadle 22 is tiltably pivoted in the bearing structures 20 and 21.
  • the body of the treadle 22 is of an open latticed construction, and the lattice openings extend throughout the thickness of the body of the treadle 22 in vertical direction.
  • a bracket 23 is provided that holds a rod 24 to which there is connected a connecting rod 25.
  • the connecting rod 25 corresponds to, and has the crank-turning function of, the previously described rod 6.
  • a heating means carrier 26 is provided that has a groove or recess 27, and a cover 28.
  • the groove 27, as best shown in Fig. 3, is a labyrinth groove that is composed of sections; each section is connected with its ends to two adjoining sections, but is throughout its length spaced apart from said adjoining sections, and is spaced apart entirely from all the other sections of the groove 27.
  • Brackets 29 are secured to the side edges of the carrier 26.
  • Resilient means, such as springs 30, are connected to the brackets 29 and carry lugs 31 for removable connection of the carrier 26 to the body of the treadle 22.
  • the lugs 31 have an over-turned edge and engage the terminal side edges of the body of the treadle 31.
  • the carrier 26 may removably be positioned on treadle bodies of different size.
  • the specific exemplitication of the lugs 31 with overturned edges shown in Figs. 3 and 4 may in accordance with an alternative modification be replaced by lugs that may engage recesses or slots in a treadle body (not shown in the drawing).
  • the carrier 26 is thus removably fastened to the underside of the body of the treadle 22, and heat emanating therefrom is conveyed through the openings of the lattice work to the feet of the bearer that rest on the top surface of the latticed body of the treadle 22.
  • a cord 32 is provided for connection to an electric source ,(not shown), and may be fastened to the board 19 by means of cable clips 33.
  • a lead-in bushing, designated 35 that is with its base 34 secured to the underside of the carrier 26 and the cord 32 is conducted through the lead-in bushing 35 into the interior of the carrier 26.
  • An electric resistor or resistance heater 40 extends between the contact points 37 and 39, and is disposed in the groove 27 of the carrier 26.
  • the operator will rest the feet on top of the body of either the treadle 3 or of the treadle 22.
  • a control switch (not shown)
  • electric current will be fed from a source to the electric resistor or resistance heater 18 or 40, and the heat developed thereby will be conveyed to the feet of the operator to keep them warm.
  • the instant invention may be used not only in connection with new sewing machines, but may easily be applied to existing sewing machines.
  • treadles of sewing machine of the foot-operated type be equipped with electric resistance heating in accordance with the invention, but the invention may also be applied to other foot supports where it is desired to keep warm the feet of the operator.
  • a sewing machine treadle having a tiltable body for the support of the feet of a person, in combination, said body having an apertured top surface, means disposed below said surface having a single labyrinth groove composed of sections, each section being connected with its ends to two adjoining sections and throughout its length being spaced apart from all sections, and an elongated electric resistor disposed in said groove.
  • a sewing machine treadle having a tiltable body for the support of the feet of a person, in combination, said body having an apertured top surface, a carrier removably connected below said surface to said body hav-' ing a single labyrinth groove composed of sections, each section being connected with its ends to two adjoining sections and throughout its length being spaced apart from all sections, and an elongated electric resistor disposed in said groove.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US415125A 1953-03-18 1954-03-09 Heated foot supports Expired - Lifetime US2756318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2756318X 1953-03-18

Publications (1)

Publication Number Publication Date
US2756318A true US2756318A (en) 1956-07-24

Family

ID=7997777

Family Applications (1)

Application Number Title Priority Date Filing Date
US415125A Expired - Lifetime US2756318A (en) 1953-03-18 1954-03-09 Heated foot supports

Country Status (2)

Country Link
US (1) US2756318A (enrdf_load_stackoverflow)
FR (1) FR1094791A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006120272A1 (es) * 2005-05-12 2006-11-16 International Macral De Baños, S.L. Reposapiés radiante de calor
US20090266774A1 (en) * 2006-05-24 2009-10-29 Andrew Keith Maclaren-Taylor Towel rail

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919489A (en) * 1907-11-29 1909-04-27 Gen Electric Electric heater.
US1287356A (en) * 1918-01-05 1918-12-10 Alfred W Lawson Pedal.
US1703640A (en) * 1926-01-13 1929-02-26 Schmidt-Predari Albert Electric heating element and method of manufacturing same
US1704413A (en) * 1925-01-17 1929-03-05 Nat Aniline & Chem Co Inc Apparatus for heating curved surfaces
US2635168A (en) * 1950-11-04 1953-04-14 Pakco Company Eddy current heater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US919489A (en) * 1907-11-29 1909-04-27 Gen Electric Electric heater.
US1287356A (en) * 1918-01-05 1918-12-10 Alfred W Lawson Pedal.
US1704413A (en) * 1925-01-17 1929-03-05 Nat Aniline & Chem Co Inc Apparatus for heating curved surfaces
US1703640A (en) * 1926-01-13 1929-02-26 Schmidt-Predari Albert Electric heating element and method of manufacturing same
US2635168A (en) * 1950-11-04 1953-04-14 Pakco Company Eddy current heater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006120272A1 (es) * 2005-05-12 2006-11-16 International Macral De Baños, S.L. Reposapiés radiante de calor
US20090266774A1 (en) * 2006-05-24 2009-10-29 Andrew Keith Maclaren-Taylor Towel rail
US8322541B2 (en) * 2006-05-24 2012-12-04 Andrew Keith Maclaren-Taylor Towel rail with electric heating element

Also Published As

Publication number Publication date
FR1094791A (enrdf_load_stackoverflow) 1955-05-24

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