US3809851A - Electric ironing press - Google Patents

Electric ironing press Download PDF

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Publication number
US3809851A
US3809851A US00313441A US31344172A US3809851A US 3809851 A US3809851 A US 3809851A US 00313441 A US00313441 A US 00313441A US 31344172 A US31344172 A US 31344172A US 3809851 A US3809851 A US 3809851A
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US
United States
Prior art keywords
arm
press
lever
lock
groove
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
US00313441A
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English (en)
Inventor
P Aeschlimann
M Fresard
A Jimenez
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
Priority claimed from CH348972A external-priority patent/CH542311A/fr
Application filed by Mefina SA filed Critical Mefina SA
Application granted granted Critical
Publication of US3809851A publication Critical patent/US3809851A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F71/00—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles
    • D06F71/32—Details
    • D06F71/34—Heating arrangements; Arrangements for supplying or removing steam or other gases
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F71/00—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles
    • D06F71/02—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles actuated wholly by hand or foot
    • D06F71/023—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles actuated wholly by hand or foot with an upper movable pressing member and a lower fixed pressing member
    • D06F71/026—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles actuated wholly by hand or foot with an upper movable pressing member and a lower fixed pressing member the upper movable member rotating about a fixed axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F71/00—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles
    • D06F71/32—Details
    • D06F71/323—Protective devices, e.g. burn guards

Definitions

  • H05b 1/00 through h v r r hro gh aid lock on an electric
  • a delay system is advantageously incorporated with said circuit to delay [56] Refer nc Cit d said switching operation a few seconds after the lower- UNITED STATES PATENTS ing Ofthe arm and Plate- 2,231,46l 2/1941 Bush 38/25 6 Claims, 6 Drawing Figures 1451 May 7,1974
  • the present invention has for its object an electric ironing press comprising a working surface extending over a support to which an arm is pivotally secured around an axis which is substantially parallel with the working surface, a heating plate carrying heating means adapted to be connected with the electric mains, a system for suspending the heating plate to the arm and a hand-controlled lever pivotally secured to the arm at a point remote from said pivotal axis, said lever being provided with an extension cooperating with the support, so as to make the heating plate assume selectively two stable positions corresponding respectively to a closing and to an opening of the press.
  • the improved press according to the present invention is characterized by the provision of a mechanical safety and an electric safety system.
  • FIG. l is a perspective view of the improved ironing press.
  • FIG. 2 is an enlarged elevational view thereof, partly in section, with parts broken away, showing how the press is locked when in its closed position.
  • FIG. 3 is a top plan view of a part of the arm of the press, with parts broken away, to show how the press is locked when in its closed position.
  • FIG. 4 is a partial sectional view of a part of said arm, showing how the bolt-carrying-bar may act as a safety system when the press is in its open position.
  • FIG. 5 is a circuit diagram of the electric safety system.
  • FIG. 6 is a top plan view of a portion of the press, certain parts being broken away to show the electric safety system.
  • the electric ironing press illustrated in FIG. 1 comprises a frame or support 1 carrying an ironing board 2 covered by a fabric.
  • An arm 3 from which a heating plate 4 is suspended, which acts as a sad-iron is pivotally secured to the rear end of the frame 1 around a horizontal axis.
  • a hand-operable lever 5 which is pivotally secured to the arm 3 at a point remote from said horizontal axis cooperates with the profiles of two cams, which are not illustrated, carried by the frame and ensuring the opening and the closing of the press.
  • the arm 3 encloses a portion of the arrangement adapted to adjust the temperature of the heating plate 4.
  • a thermostat-adjusting knob 6 fitted on the heating plate 4 is shown in FIG. 1, together with a luminous signal which is extinguished when the thermostat switches off the electric current feeding the heating means in the plate 4 and a panel 8 providing an indication for the desired temperature to be assumed by the heating plate
  • the arm 3 is provided with a groove 37 engaged by the lever 5 in its press-closing position.
  • a lock 38 controlled by a key which may be inserted in a bore formed for this purpose in the upper surface of the arm 3 is adapted to lock the lever 5 in its pressclosing position.
  • the bolt 39 on the lock 38 projects into the groove 37 engaged by the lever 5 in its press-locking position. This eliminates all risks of an undesired inadvertent opening of the press when it is being put aside or taken hold of by unauthorized persons.
  • the locking of the lock 38 prevents the press from being closed by an unauthorized person, since its bolt 39 prevents any lowering of the lever 5 into the groove 37, the bar 5 engaging the groove 37 for both positions of the lever.
  • the lock 38 serves then as a safety system if, for instance, children were to try to close the press during a short absence of the actual operator.
  • the lock 38 controls a switch, not shown, which cuts off the electric circuit feeding the heating means of the press when lock 38 is in closed position and locking the press.
  • a second lever 40 rigid with the arm 3 of the press and through which the heating plate 4 may be shifted by hand towards the ironing board before the lever 5 is set in its pressclosing position.
  • FIG. 5 shows the electric safety system controlling the current feeding the heating means and adapted to switch off the current when the press remains closed over a period which lasts too long, say over 15 seconds.
  • the circuit extends between two terminals a and b adapted to be connected with the terminals of onephase mains.
  • Heating means 9 are inserted in series with adjusting means 10 and a switch 11 between the terminals a and b.
  • the adjusting means 10 include in particular the thermostat referred to hereinabove.
  • the switch 11 feeds the heating means when it is set in the position illustrated, whereas it releases an acoustic signal 12 when it is set in its other operative position.
  • the switch 1 1 comprises the contact pieces of a relay controlled by the energizing winding 12 subjected to the action of an electronic delaying system or timer.
  • the latter is fed by the mains through a rectifier 14, a resistance R, and a Zener diode D which stabilises at a value of 24 volts the voltage of a condenser C inserted in parallel with a condenser C and loaded by the current from the mains after rectification at 14.
  • Said delaying system includes a transistor T adapted to load under constant current conditions a condenser C To this end, the base-emitter circuit of the transistor T, is stabilized by a further Zener diode D and the resistances R and R The condenser is adapted to be discharged into a resistance R upon closing of a switch S.
  • the voltage of said condenser C is applied to an amplifier of the Darlington type constituted by two transistors T and T and controlling the feed of the winding 13 forming part of the relay switch 11.
  • a Zener diode D is inserted in series between the condenser C and the amplifier, so that the latter may become conductive only when the voltage of the condenser C rises above the critical voltage of the Zener diode D
  • a resistance R is provided for adjusting the voltage of the base of the transistor T while a condenser C inserted in series with a resistance R, cuts ofi all stray oscillations in the circuit.
  • a diode D is inserted in parallel with the winding 13, so as to quench the break impulses.
  • the switch S is opened by the lock 38, for instance, when the press is closed, so as to the condenser C
  • the voltage on the latter increases gradually and after about, say 15 seconds, it reaches ensure the loading of the threshold of conductibility of the diode D which results in the energization of the winding 13 of the relay switch 11. Consequently, the feed current is switched off and the acoustic signal 12 is released. If the press is now opened before the winding 13 is energized, this produces a closing of the switch S, whereby the condenser C discharges speedily into the resistance R...
  • the delaying system forms a printed circuit constituted by a thin plate 15 fitted in the arm 3 (FIG. 6).
  • Said plate carries a conductive blade 16 playing the part of the switch S of FIG. 5 and providing for the contact between two contact-pieces, not illustrated, carried by the plate 15.
  • a cam which is not illustrated, which cam is actuated by the lever 5, so that the contact between the contact-pieces through the blade 16 is cut off.
  • the acoustic signal 12 may be replaced by any other signalling means such as luminous signal for instance.
  • an ironing press comprising a frame provided with a working area, an arm adapted to rock between an upper and a lower position with reference to said frame around an axis substantially parallel with the working area and provided with a groove extending across its upper surface perpendicular to said axis, a heating plate suspended from said arm, heating means within said heating plate and a hand-operable lever pivotally secured to said arm at a point remote from said axis and adapted to be shifted between an upper position raised above the arm for opening the press and a lower groove-engaging position for closing the press, the provision of mechanical lever-locking safety means in said arm and of an electric safety circuit also in said arm and opened and closed by actuation of said leverlocking safety means to make the heating means inoperative at a predetermined moment after the closing of the press.
  • the mechanical safety means includes a lock including a bolt, the bolt of said lock penetrating inside the groove in the arm over the location, to thereby lock said lever in said last-mentioned position.
  • the mechanical safety means includes a lock including a bolt mounted in the arm, the bolt of said lock penetrating inside the groove in the arm over the location of the lever when said lever is in its lower groove-engaging position, thereby to lock said lever in said last-mentioned position, the movement of the bolt inside the groove preventing the lever from entering said groove when the lever is raised above the arm.
  • the mechanical safety means includes a lock including a bolt mounted in the arm, the bolt of said lock penetrating inside the groove in the arm over the location of the lever when said lever is in its lower groove-engaging position, to thereby lock said lever in said last-mentioned position and wherein the electric circuit includes a switch controlled by the lock, said switch controlling the operation of the heating means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Irons (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Resistance Heating (AREA)
US00313441A 1972-02-24 1972-12-08 Electric ironing press Expired - Lifetime US3809851A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH263072 1972-02-24
CH348972A CH542311A (fr) 1972-03-08 1972-03-08 Presse à repasser électrique

Publications (1)

Publication Number Publication Date
US3809851A true US3809851A (en) 1974-05-07

Family

ID=25690984

Family Applications (1)

Application Number Title Priority Date Filing Date
US00313441A Expired - Lifetime US3809851A (en) 1972-02-24 1972-12-08 Electric ironing press

Country Status (14)

Country Link
US (1) US3809851A (es)
JP (1) JPS5227760B2 (es)
AR (1) AR204235A1 (es)
BE (1) BE792858A (es)
BR (1) BR7208990D0 (es)
CA (1) CA968696A (es)
CS (1) CS157610B2 (es)
DE (1) DE2261161C3 (es)
ES (1) ES409626A1 (es)
FR (1) FR2172962B1 (es)
GB (1) GB1392640A (es)
IE (1) IE37015B1 (es)
IT (1) IT976058B (es)
NL (1) NL7217152A (es)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2231461A (en) * 1937-12-13 1941-02-11 Borg Warner Press ironer
US3272114A (en) * 1964-05-15 1966-09-13 Nat Marking Machine Co Heat sealing apparatus
US3454741A (en) * 1966-04-11 1969-07-08 Kwikseal Heat seal machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR624333A (fr) * 1926-09-27 1927-07-13 Perfectionnements aux presses à repasser
GB427189A (en) * 1933-10-17 1935-04-17 Herbert Lungley Powe Improvements relating to steam clothes presses and ironing machines
DE904802C (de) * 1951-08-17 1954-02-22 Siemens Ag Sicherheitseinrichtung fuer Buegelgeraete, insbesondere Buegelmaschinen
CH501764A (de) * 1970-07-21 1971-01-15 Schmid Heinrich Bügelpresse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2231461A (en) * 1937-12-13 1941-02-11 Borg Warner Press ironer
US3272114A (en) * 1964-05-15 1966-09-13 Nat Marking Machine Co Heat sealing apparatus
US3454741A (en) * 1966-04-11 1969-07-08 Kwikseal Heat seal machine

Also Published As

Publication number Publication date
IT976058B (it) 1974-08-20
AR204235A1 (es) 1975-12-10
NL7217152A (es) 1973-08-28
JPS5227760B2 (es) 1977-07-22
DE2261161B2 (de) 1978-02-09
BR7208990D0 (pt) 1974-12-31
FR2172962B1 (es) 1976-08-27
JPS4896891A (es) 1973-12-11
CA968696A (en) 1975-06-03
GB1392640A (en) 1975-04-30
IE37015B1 (en) 1977-04-13
BE792858A (fr) 1973-03-30
ES409626A1 (es) 1976-04-01
IE37015L (en) 1973-08-24
DE2261161A1 (de) 1973-08-30
CS157610B2 (es) 1974-09-16
DE2261161C3 (de) 1978-10-12
FR2172962A1 (es) 1973-10-05

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