US2365542A - Ironing machine - Google Patents

Description

Dec. 19, 1944. F. M. FREIS 2,365,542

' IRONING MACHINE Original Filed Aug. 29, 1941 2 Sheets-Sheet l III In INVENTOR.

Dec. 19, 1944.

F. M. FREIS IRONING MACHINE Original Fi led Aug. 29, 1941 2 Sheets-Sheet 2 fmlu I Patented Dec. 19, 1944 UNITED STATES PATENT :oFFlcs moms MAcmNE I Frederick M. 'Freis, Chicago, Ill.,, assign'or to Conlon Corporation,- Cicero, 111., a corporation of Illinois Original application August 29, 1941, Serial No. 408,703. Divided and this application October 19, 1942, Serial No. 462,538

4 Claims.

'mounted shoe operating shaft and associated shoe supporting means, in conjunction with means for quickly coupling and uncoupling the supporting means to and from the shaft, for movement of the shoe with the shaft to the roll or from the roll independently of the shaft. The coupling means comprises means for adjusting the spring pressure of the shoe and means as'- suring movement of the shoe away from the roll when the shoe supporting means is uncoupled from the shaft. Further objects and advantages of my invention will appear from the detail decri-ption.

- In the drawings:

Figure 1 is a front View of an ironing machine embodying my invention;

Figure 2 is a back view of the machine of Figure 1, with the shoe cover removed; and

and movable to and from the roll. Roll 43 comprises an inner cylinder 45, conveniently formed of sheet metal, and a pad 46 mounted upon cylinder 45 in a known manner.

The roll 43 is driven from a suitable motor (not shown) housed therein, by means of appropriate gearing and control means (not shown) within gear housing 42, under control of rod I03 provided at its forward end with button I06, and the control member comprising knob I3I and shank I32 extending therefrom into a sheet metal casing I05 secured to and enclosing gear hc ising 42. A shoe operating arm I02 is disposed within the casing I05 and extends gen- This erally forwardly and upwardly therein. arm I 02 is swung upward and downward by suitable motor operated means (not shown) within casing I 05, responsive to movement of knob I3I from its lower position shown in Figure Figure 3 is an outer end view, on an enlarged scale of the gear housing and roll and shoe and associated parts, certain parts being partly broken awa and certain other parts being shown in section.

This application is a division of my copending application for Ironing machine, Serial No. 408,703, filed August 29, 1941, which has matured into Patent No. 2,346,374, issued April 11, 1944. My instant invention is directed particularly to those features having to do with the mounting and operation of the shoe, to an understanding of which a detailed description of the other features of the machine is not essential. Accordingly, a brief description of vthe machine as a whole, with a detailed description of the shoe supporting and operating means of my instant invention, will suffice.

The ironing machine shown in Figures 1 and 2 comprises a base 40 conveniently formed of sheet metal and rectangular in plan and provided with rubber bumpers 4|, a gear housing 42 bolted or otherwise suitably secured to base 40 -adjacent one end thereof and extending up-. ward therefrom, a roll 43 extending from gear housing 42 inward over base'40, and a shoe 44 mounted in back of roll 43 cooperating therewith 3 to an upper position and vice versa. The means for rotatably supporting the roll 43 and driving it, and for operating the shoe operating arm I02, and the associated controls, are fully disclosed in my above identified copending application and need not be described in greater detail here. So far as my instant invention is concerned, the roll 43 may be mounted and driven in any suitable known manner, any suitable 7 known means may be provided for imparting swinging movement to shoe operating arm I02 an appropriate distance in either direction, and any suitable known means for controlling operation of the roll 43' and of the shoe operating arm I02 may be provided. Suflice it to state that roll 43 is driven in a suitable manner and power means is provided for swinging shoe operating arm I 02 a proper distance in either direction and then stopping it, there being suitable means provided for controlling operation of the roll 43 and of the shoe operating arm I02.

Shoe operating arm I02 is mounted at its rearward end on the outer end of 'a tubular shoe shaft IIO rockably mounted in a sleeve III formed integrally with the gear housing 42, shaft I I0 being confined against endwise movement by stop collars H2 and H3 suitably secured thereon and contacting the ends of sleeve I I I. hub II4, shown in Figures 2 and 3, is secured on the outer end, portion of shaft II 0 and arm I02 is secured to flange II5 of hub H4 in a suitable manner, conveniently by means of a screw I I6. It will be seen that when shoe operating arm I02 is swung upward about the axis of shaft Ill, in a clockwise direction as viewed in Figure 3,

shaft 0 is. turned clockwise for moving shoe ments and associated parts.

, M rearward away from roll 55, and when arm I82 is swung downward into its lowered position shown in Figure 3 shaft I62 is turned counterclockwise, as viewed in Figure 3, for moving the shoe to the roll into cooperating relation thereto.

Shoe shaft III]; extends inwardly above base it to about the mid-length of the shoe t l. A coupling arm I50 is secured on the inner end of shaft III] and extends rearwardly therefrom, this arm being slotted from its rearward end. A shoe supporting arm I5I, comprising two plates I52 (Figure 2), is loosely mounted on shaft H0 and straddles arm I50. At their rearward lower portions the plates I52 are secured together by a spacer I53 and a block I55, disposed between plates I52, is pivotally mounted therein below coupling arm I56, by means of associated studs Adjacent their upper end plates I52 are secured together by a U-shaped bridge member I56, the arms of which are spot welded or otherwise suitably secured to plates I52. Bridge member I56 carries a rearwardly opening spring clip I57 of known type, secured thereto in a suitable manner and disposed to receive the upper portion of a release rod I58 provided at its upper end with a knob I59. The lower portion of rod I58 is threaded and screws through block I54. A thimble I68 is loosely mounted on rod I53 for movement lengthwise thereof, downward movement of this thimble being limited by a pin I6! secured through rod I59 and disposed within a recess I62 extending from the lower end of thimble I60. At its upper end, thimble IE0 is recessed to provide a seat for the lower end of a coil compression spring I53, disposed about rod I58 and confined between thimble IGI] and an inverted cup member I641 mounted on rod I58 and confined against upward movement thereon, by a pin I65 secured through the rod. The lower portion of thimble I68 is rounded as shown in Figure 3, to facilitate movement thereof onto the the roll under spring pressure.

upper face of arm I56 when rod I58 is swung The shoe I I is of known type and is provided with a sheet metal cover I68, providing withthe shoe a housing for enclosing the heating ele- A channel clamping bar It? is-ibolted or otherwise suitably secured to the back of shoe M at the mid-portion thereof and has secured thereto, by welding or in any other suitable manner, two spaced ears I68. A pin I69 extends through the upper forward portions of plates I52 and through ears I68, providing a pivotal connection between shoe lid and shoe supporting arm I5I, to which arm the shoe is thus connected for movement therewith to and from the roll at.

A coil tension spring I II! is attached at its uper end to pin I69, conveniently by being hooked thereover, the lower end of this spring being hooked through a web element I'II formed integrally with the coupling arm I 50. Since the lineof pull of sprin III) is in back of shaft H0, this spring tends to swing the shoe supporting arm I5I rearward and downward, assuring proper contact ofthinfble I60 with coupling arm I5Il, when rod I58' is swung forward into coupling position. I

Normally, rod I58 remains in its coupling position shown in Figure 3, thus coupling shoe supporting arm 1 5| to shaft I IE for movement therewith. When shoe operating arm I02 is swung upward, the shoe supporting arm I5I is moved downward and rearward so as to move shoe away from roll 333, and, when arm I92 is swung downward, shoe supporting arm iEiI is swung forward moving the shoe to the roll into cooperating relation therewith, and spring I533 is placed under compression holding the shoe to In order quickly to release the shoe from the roll, rod I56 is moved rearwardly as to disengage thirnble IGS arm I50, spacer I55 limiting this rearward movement of rod I58. When the release rod been thus disengaged from arm 55%, tension spring Ild swings shoe supporting arm I55 rear ward and downward moving the shoe away from the roll. It will be understood that spring I53 is considerably heavier than tension spring I and that the latter does not objectionably in.- terfere with the function of spring in holdme the shoe to the roll under spring pressure.

When the shoe M is in cooperating relation to the roll, as shown in Figure 3, it may be quick ly released from shaft IIil by swinging release rod I58 rearward, as above explained. In order to recouple the shoe supporting arm I5I to shoe operating shaft IIIi, release rod I 58 is swung forward into the slot of arm I 58 so as to dispose thimble I55 above and in contact with the latter arm. As will be clear from the drawings, release rod I55, including knob I55; extends above shoe M and is accessible from in front of the machine for effecting the uncoupling and coupling operations referred to. By screwing release rod I58 through block I5 5, the compres sion of spring I63 may be varied. The release rod I58 thus provides quick acting and readily accessible means for couplingand uncoupling shoe M to and from the shoe operating shaft I II], and also provides readily accessible means for adjusting the spring pressure exerted upon shoe MI when the latter is in cooperating relation to roll 53.

As previously stated, the shoe M is of known construction and preferably heated by electrical resistancev elements having an associated thermostat I73 (Figure-2), to which and the resistance element or elements, as the case may be, current is supplied by means of a suitable cord or cable IId lead through the tubular shaft III! at a point within the sheet metal casing I05. The latter is provided with a flanged removable cover plate I75 and provides a housing for the outer end portion of shaft III? and associated parts. Conveniently the cable or cord I I: is provided at its free end with a plug cap I??? of known type, or any other suitable means may be provided, for connecting the cable to a source of electric current.

It will be understood that various changes in construction and arrangement of parts of my invention may be resorted to without departing from the field and scope thereof, and I intend to include all such variations, as fall within the scope of the appended claims, in this application in which the preferred form only of my insaid shaft loose thereon, means connect ng said shoe to said supporting arm for movement therewith, a release rod having pivoted and screw connections to said supporting arm extending upwardly of the latter and movable about its pivot into and out of the slot of said coupling arm, and means carried by said rod cooperating with said slotted arm for coupling said supporting arm to said slotted arm for movement therewith and for uncoupling said supporting arm from said slotted arm for independent movement away from said roll, said means comprising means for exerting spring pressure upon said shoe when the latter is in cooperating relation to said roll and for varying the effective force of said pressure by threading said rod through said screw connection.

2. In an ironing machine, a rotating roll and a cooperating shoe, a rockably mounted shoe shaft in back of said shoe, a coupling arm secured on said shaft extending rearward therefrom and provided with a slot opening through its rearward end, a shoe supporting arm extending upward from said shaft loose thereon, means connecting said shoe to said supporting arm for movement therewith, a block pivoted on said supporting arm, a release rod threaded through said block movable about the pivot thereof into and out of the slot of said coupling arm, a thimble loose on said rod disposed to bear on the upper face of said slotted arm when said --ward therebelow, means connecting said shoe to said supporting arm for movement therewith, a'

block pivoted in said supporting arm below said slotted arm, a release rod threaded through said block movable about the pivot thereof into and out of the slot of said coupling arm, a thimble slidable on said rod disposed to bear on the upper face of said slotted arm when'said rod is disposed in said slot, an abutment member on said rod above said thimble confined against upward movement, a. compression spring on said rod confined between said thimble and said abutment member, and means for rocking said shaft.

4. In an ironing machine, a rotating roll and a cooperating shoe, a rockably mounted shoe shaft in back of said shoe, a coupling arm secured on said shaft extending rearward therefrom and provided with a slot opening through its rearward end, a shoe supporting arm extending upward from said shaft loose thereon and straddling said slotted arm and extending downward therebelow, means connecting said shoe'to said supporting arm for movement therewith, a block pivoted in said supporting arm below said slotted arm and in back of said shaft, a release rod threaded through said block movable about the pivot thereof into and out of the slot of said coupling arm, a thimble slidable on said rod having limited downward movement thereon and disposed to 'bear on the upper face of said slotted arm when said rod is disposed in said slot, an abutment member on said rod above said th mble confined against upward movement, a compression spring on said rod confined between said thimble and said abutment member, means for rocking said shaft, means yieldingly urging said supporting arm downward and rearward about said shaft in a direction to move said thimble toward said slotted arm, and means for releasably holding said rod in position disposed in the slot of said coupling arm.

FREDERICK M. FREIS.

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