US2213689A

US2213689A - Press ironer

Info

Publication number: US2213689A
Application number: US185287A
Authority: US
Inventors: Theodore R Bush
Original assignee: Borg Warner Corp
Current assignee: Borg Warner Corp
Priority date: 1938-01-17
Filing date: 1938-01-17
Publication date: 1940-09-03
Anticipated expiration: 1957-09-03

Description

T. R. BUSH PRESS IRONER Sept. 3, 1940.

Filed Jan. 17, 1938 2 Sheets-Sheet 1 Sept. 3, 1940. 'r. R. BUSH PRESS 1110mm Filed Jan. 1'7, 1938 2 Sheets-Sheet 2 I TifoaQre 77? I ISNTOR 'TOR NE J" Patented Sept? 1940 UNITED STATES PRESS IRONER Theodore R. Bush, Royal Oak, Mich, assignor to Borg-Warner Corporation, Chicago, 111., a corporation of Illinois Application January 17, 1938, Serial No. 185,287

10 Claims.

This invention relates in general to ironing apparatus with particular reference to ironing apparatus of the portable hand-operated type.

A primary object of the invention is to provide an improved form of press ironer which is efiiicient in operation, light in Weight, relatively simple in construction, easy to operate and inexpensive to manufacture.

A further object of the invention is to provide a novel form of hand-operated press ironer in which a single lever is used for controlling the different operations of the apparatus.

Another object of the invention is to provide a new system of linkages whereby operation of a single lever serves first to lock the ironing parts of the mechanism in ironing relationship and then to apply force to such locking arrangement to increase the pressure between the ironing portions of the apparatus, such increased pressure being made possible by the resilient mounting of one of the ironing instrumentalities.

Further objects will appear more fully hereinafter as the description proceeds and will be pointed out more completely in the appended claims.

As illustrated in the drawings, the ironer of the invention comprises, in general, a rigid base which is adapted to be supported on a table or work surface of any type and which resiliently supports at one end a buck. The opposite end of the base is provided with upstanding portions within which a movable arm is pivoted. The movable arm carries at its forward end, and in opposition to the buck, a shoe for cooperation with the buck. The arm also carries a manually operable lever and a locking wedge which cooperates with a pin carried by the base for locking the arm and base with the buck and shoe in ironing relationship. A link extends from the lever to a bell crank which is connected through a second link to the knee of a toggle, one of the links of which has one end forming the pin with which the wedge is locked. It will be noted that as the toggle is straightened, force is applied against the locking wedge to increase the pressure with which the shoe and buck are urged together.

For a better understanding of the invention, reference may be had to the accompanying drawings, of which there are two (2) sheets, in which:

Fig. 1 is a plan view of the ironing apparatus showing the shoe depressed into operative relationship with the buck;

Fig. 2 is a vertical longitudinal sectional view of the ironer shown in Fig. 1, but showing the arm and shoe in their raised or inoperative position;

Fig. 3 is a vertical longitudinal sectional view through the ironing apparatus taken substan- 5 tially upon the plane indicated by the line 33 of Fig. 1, and looking in the direction of the arrows; and,

Fig. 4 is a sectional view similar to Fig. 3 but showing the position which the parts assume 10 during the final stage of the ironing operation.

In the drawings, in which similar parts are designated by similar reference characters, the ironing apparatus is shown as comprising a base I0 which supports at its forward end a buck I2. 15 The buck I2 is provided with depending bolts I4 around which are coiled compression springs l6. Bolts 14 pass through the frame I8 of the base l0 and the compression springs l6 are seated at their lower ends upon washer 20 resting upon the frame IS. A similar connection 22 is employed between the upper end of the springs 16 and the buck l2.

A pair of upstanding portions 24 are provided adjacent the rear of the base I0, such portions carrying a pivot shaft 26 upon which is pivotally mounted one end of an arm 28. The arm 28 carries a shoe 30 in position to cooperate with the buck I2. 0

Arm 28 is provided at its rear end with a cylindrical socket 32 in which there is mounted a Wedge pin 34 having a wedging surface 36. Wedge 34 is spring-pressed downwardly by means of a compression spring 38 which has one end bearing against wedge 34 and the other end bearing against the end of the socket 32. Spring 38 serves normally to project the wedge 34 downwardly but is adapted to be retracted by means of a link 40, one end of which engages an aper- 40 ture 62 formed in a wedge 34. The opposite end of link 40 is connected to a portion of a bell crank member M pivoted at 46 upon the arm 28. A link 48 extends from the bell crank 44 and has its other end 56 mounted in a slot 52 formed 45 in a main operating link 54.

Link 54 is connected at 56 to one end of manually operable lever 58 fulcrumed upon a shaft ED extending transversely of the forward portion of the arm 28. With the arm in raised position 5 as shown in Fig. 2 and the lever 58 at the rearward extent of its movement, link 54 has reached the limit of its travel toward the right and has taken up the lost motion between link 48 and slot 52, rotating bell crank 44 in a clockwise di- 55 rection and lifted link 40 to retract the wedge 34 against the action of the spring 38.

Link 54 also serves as means for rotating a bell crank 62 which is fulcrumed upon the main pivot shaft 26 and has one arm connected at 64 to the link 54. Another arm of the bell crank is pivoted at 66 to a link 68 connected to the knee of a

toggle

12, 14. Link 12 of the toggle has a fixed pivot point 16 upon the frame l8 of the base l0, while the other link 14 of the toggle has its opposite end free and forming a pin 18 slidable in an arcuate slot 88 and forms the complementary member with which the wedge surface 36 of the wedge 34 cooperates in looking the arm 28 in depressed position.

From the foregoing description it will be apparent that the operation of the device is substantially as follows.

The torsion spring 82, one end 84 of which bears against the arm 28 and the other end 86 of which bears against base In, normally balances the weight of the arm 23 and holds the same in its raised position as shown in Fig. 2. After the material to be ironed has been spread over the top surface of the buck l2 the operator grasps the handle 88 rigidly secured to the forward portion of the arm 28 and lowers the shoe 38 and arm 28 against the buck l2. While holding the shoe and'arm thus depressed, the operator grasps the weighted end 90 of the lever 58 and pulls the same forwardly. Said motion of the lever 58 results in a rearward movement of the link 54, thus permitting wedge spring 38 to project the wedge 34 downwardly into engagement with the pin 18. Pin 18 will have partaken through link 54, bell crank 62 and toggle 12, I4

I of a portion'of the movement of lever 58 and at I the time when looking occurs will be in substantially the position shown in Fig. 3.

As movement of the lever 58 progresses, the

.

toggle

72, 74 is progressively straightened, thus increasing the movement of pin 18 along the arcuate slot 8|] to force wedge 34 rearwardly and rotate the arm 28 and shoe 30 in a clockwise direction. The increased force with which the shoe 30 bears upon the buck I2 is supported by the compression spring [5 through which the buck is suspended from the frame I8 to the base I 0. Compression springs l6 may be initially loaded by means of nuts 92 and lock nuts 94 threaded upon the lower end of the bolts 14. The additional motion of the link 54 toward the left as viewed in Fig. 4 does not serve to project the wedge 34 additionally downwardly but merely results in the end 50 of link 48 riding along freely in the slot 52 as shown in Fig. 4.

During this return movement link 54 moves to the right to rotate bell crank 62 in a clockwise direction and to return the

toggle

12, 14 to its 60 relieving the pressure which has been applied through wedge 34, arm 28 and shoe 30 to the buck I 2.

initial broken position as shown in Fig. 2, thus The latter part of the return of the initial portion of the movement of lever 58 also serves to take up the lost motion between the slot 52 and the end 50 of link 48. Upon reaching the limit of this lost motion during the latter portion of the return movement of lever 58 bell crank 44 is rotated in a clockwise direction to retract the wedge 34 through link 40 against the action of the spring 38.

The shoe 38 may be heated by an electric element (not shown) and for this reason is provided with an electric cord 96 which bears an electrical plug 98 upon one end thereof forconnection to a domestic electrical outlet. The shoe 30 also contains a regulating mechanism for adjusting the degree of heat at which the shoe will operate. A pointer and dial I08 is provided for this purpose. It will be recognized that the apparatus lends itself readily to mass production methods of manufacture inasmuch as the parts are simple, small in number and are easily assembled. It will also be recognized that the apparatus is simple to operate since it only requires that one lever be actuated by the operator, all of the different phases of the operation of the machine occurring automatically as a result of movement of this single lever in two directions.

I claim:

1. Ironing apparatus comprising a base, a buck supported upon said base, an arm pivoted to said base, a shoe supported by said arm and movable into and out of pressing relationship with said buck, means for locking said arm with said shoe and said buck in pressing relationship, means cooperable with a part of said locking means for increasing the pressure thereon so as to tend to rotate said arm towards said buck thereby increasing the pressure between said shoe and said buck, and a lever stationed on said arm and associated with said pressure increasing means for operating the same.

2. Ironing apparatus comprising a base, an arm pivoted to one end of said base so as to be movable toward and away from said base, a bar carried by said arm, a pin slidable in a slot in said base, said bar and said pin being so arranged relative to one another that said bar will be moved by said pin upon movement thereof, means for moving said pin against said bar to effect rotation of said arm toward said base, a buck supported upon said base and a shoe supported by said arm for movement into and out of pressing relationship with said buck.

3. Ironing apparatus comprising a base having a buck thereon, an arm pivoted to one end of said base, a shoe supported by said arm for movement into and away from pressing relationship with said buck, a wedge carried by said arm, a pin slidable in a slot in said base, said wedge and said pin being arranged so as to be adjacent each other when said shoe is in pressing relationship with said buck, and means for moving towards said base thereby to increase the pressure between said shoe and said buck, said pin moving means comprising a toggle operable by means of a lever positioned on said arm.

4. Ironing apparatus comprising a base and an arm pivoted to one end of said base, a buck carried by said base, a shoe carried by said arm so as to be movable into and out of pressing engagement with said buck, a wedge carried by said arm, a pin slidable in a slot in said base, said pin being engageable with said wedge when said buck and said shoe are in pressing relationship, and means for moving said pin against said wedge to rotate said arm toward said base thereby to increase the pressure between said shoe and said buck, said pin moving means comprising a toggle connected to a manually operable lever mounted on said arm.

5. Ironing apparatus comprising a base and an 2,21s,sse

when said shoe and said buck are in pressing relationship, means for moving said pin against said wedge to rotate the free end of said arm towards said base thereby to increase the pressure between said buck and said shoe, and means carried by said arm for moving said pin and for retracting said wedge from engagement with said pm.

6. Ironing apparatus comprising an arm member and a base member pivoted together at one end of said base member, a buck on said base member, a shoe carried by said arm member so as to be movable into and out of pressing relationship with said buck, a wedge on one of said members, a pin on the other of said members, said wedge being engageable with and disengageable from said pin upon movement of said shoe into and out of pressing relationship with said buck, and means for moving said pin against said wedge when the same are. in engagement to cause rotation of said arm about said pivot thereby to increase the pressure between said shoe and said buck, said means comprising a toggle carried by one of said members and a lever for operating said toggle.

'1. Ironing apparatus comprising a base member with an arm member pivoted to one end thereof, a buck on said base member and a shoe carried by said arm member so as to be movable into and out of pressing relationship with said buck, a wedge on one of said members, a pin on the other of said members, said wedge being engageable with said pin upon movement of said shoe into pressing relationship with said buck, an

operating lever, two bell cranks pivoted on said arm member and connected to said lever so as to be moved thereby, a link connecting said wedge and one of said bell cranks, a toggle between said pin and the member upon which said pin is supported, a link between said toggle and the other of said bell cranks, said bell cranks being connected to said lever so that when said shoe is in engagement with said buck movement of said lever in one direction will move said wedge out of engagement with said pin, and movement of the lever in the other direction will actuate said toggle so as to move said pin against said wedge and thereby increase the pressure between said shoe and said buck.

so 8. Ironing apparatus comprising a base, a buck supported upon said base, an arm pivoted to said base, a shoe supported by said arm for movement into and out of pressing relationship with said buck, an operating lever positioned on said arm, means cooperable with said arm and said base for locking said arm with said shoe and said buck in pressing relationship, and means for applying force through said locking means so as to increase the pressure between said shoe and said lationship, means cooperable with said locking means and said base for applying force through said locking means thereby to increase the pressure with which the shoe bears on said buck, said locking means and said force applying means being connected to said lever thereby.

10. In a device of the class described having an arm and a base pivotally connected together, a buck carried by said base and a shoe carried by said arm and movable into and out of pressing relationship with said buck, an operating lever carried by said arm, a wedge carried by said am and arranged to be projected beyond said arm, a pin mounted for movement relative to said base and adapted to be engaged by said wedge upon movement of said shoe into pressing relationship with said buck for locking-said arm to said base with said shoe in pressing relationship with said buck, a bell crank pivoted to said arm and forming part of a connection between said lever and said wedge, said lever being operable for disengaging said wedge from said pin so as to permit movement of said shoe away from said buck, said bell crank being moved by movement of said arm and said shoe away from said buck for moving said wedge to a disengaged position.

for operation THEODORERBUBH. 60