US2470867A - Machine for breaking in shoes - Google Patents

Description

y 24,1949. A. SACHS 2,470,867

MACHINE F 0R BREAKING IN SHOES Filed Sept. 26, .1946

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A. SACHS MACHINE FOR BREAKING IN SHCES 2 she etsesh eet 2 Filed Sept. 26, 1946 Patented May 24, 1949 UNITED STA ENT OFFICE 5 Claims.

This invention relates to improvements in machines for breaking in or altering shoes or boots and the like to conform to the foot peculiarities of the individual user.

An object of this invention is to provide a ma chine for breaking in shoes which will be easy and inexpensive to operate, and which may be efficiently manipulated by unskilled labor.

A further object of this invention is to provide a machine of the character described which is capable of adjusting and conditioning a pair of shoes simultaneously.

A further object of this invention is to provide a machine which obviates the necessity for lifting the conventional head clamp in order to permit access to the shoe supporting anvil, which is usually provided in machines of this nature.

Another object of this invention is to provide a pressure gauge thereon indicating the amount of pressure used in adjusting the shoes, to thereby minimize rupturing of shoes by the application of excessive force thereto during the treating process.

Another object of this invention is to provide a novel anvil for use in the machine whereby both ends of the anvil may be used as a mold supporting and retaining means.

A further object of this invention is to provide a pair of hydraulic jack control and actuating means for applying pressure during treatment of the shoes, which control may be selectively used by hand or by foot.

A further object of this invention is to provide molds adapted for quick attachment upon the anvils in such a manner that they can be easily removed or adjusted thereon.

Another object of this invention resides in the provision of novel shaping means magnetically secured to the anvils in a machine of this nature.

Further objects of this invention shall become apparent in following the specification and drawings therewith appended.

In the drawings:

Figure 1 is a perspective view of the improved machine for breaking in shoes, boots and the like;

Figure 2 is a longitudinal sectional view of Figure 1 showing various components of the present invention;

Figure 3 is a side sectional view of Figure 2 taken on the line 3-3 thereof;

Figure 4 is a detail view showing the improved reversible anvil forming part of this invention;

Figure 5 is a fragmentary view of the anvil shown in Figure 4 with one type of improved mold thereon;

Figure 6 is a plan View of the anvil shown in Figure 4 showing in particular my improved magnetic molds;

Figure 7 is a fragmentary sectional view taken on line l--'l of Figure 6 showing the improved magnetic mold used in this invention;

Figure 8 is a plan View similar to Figure 6 showing a magnetic mold of a particular shape peculiar to the operation to be performed;

Figure 9 is a longitudina1 sectional View of the manually operated jack actuating arm showing the locking mechanism therein;

Figure 10 is a longitudinal sectional View of the foot-operated jack actuating-arm locking device; and

Figure 11 is a fragmentary detail in elevation showing a portion of the mechanism associated with Figure 10.

Like reference characters indicate similar parts in the views of the invention which embodies improvements over my prior invention, Patent No. 1,958,426.

The reference numeral 10 indicates generally the invention wherein the base [2 and stand I l form a support for the head member it having an aperture l8 therein.

An hydraulic jack 20 is provided in head portion It, as seen most clearly in Figure 2, and a manually operated jack arm 22 is provided projecting through an aperture 23 in frame member It. A second jack actuating arm 25 is provided projecting through an aperture 21 in the frame member l6 for foot actuation of the jack 26. A stay rod 36 slidably receiving member 26 is supported from the stand member M as shown clearly in the drawings. For the convenience of the operator either the hand actuator 22 or the foot actuator 26 may be used alternatively, a foot pedal 28 being provided at the end of member 26 for receiving the operators foot in reciprocation of member 26.

The said manually operated jack arm is constructed as follows. A housing is forming a continuation of arm 22 is provided with a complemental housing [5 secured thereto by suitable detachable means such as screws [5a or the like. As is apparent from the drawings the said housings when joined together form a hollow disk like member enclosing a gear I! which is secured to the rotary operating shaft 20a of the jack means 20. In the said arm 22 is a keeper it normally biased away from the said gear ll. A convenient pivotally mounted keeper actuator U is provided at the extremity of the handle 22 for engaging the keeper 19 with the gear I! when desired by the operator of the invention.

The said foot actuating means is constructed quite similar to the manual actuating means. A pair of housing members l3a, and I5, joined by suitable means shown as screws l5a, similar to the above mentioned housing members, are adapted to receive a gear Ila secured to the actuating shaft 26a. A resiliently biased keeper I-9a normally urged toward said gear Ila is pro.- vided with a conventional bayonet latch l9b for retaining the said keeper in a predetermined position in accordance with the volition of the operator of the invention. Secured to a face of the said disk like housing is a pivot crank pin a, to which is pivotally secured the said arm 25, hereinbefore described. A spring 24 anchored to frame member [8 and adjustably secured to rod 26 is provided for returning the said rod to its uppermost position for convenient foot operation thereof.

The operation of the above described actuating means is now apparent. In the operation of the first alternative, the manual means, lever 2| is depressed engaging the keeper l8 in the teeth of gear ll thereby locking the handle 22 to the ratchet gear ll for operation of shaft 20a. It is here noted that while the arm 22 is inoperative it will fail downward and be conveniently unobstructive.

In the operation of the second alternative, the said foot actuating means 26 the bayonet latch 19b and a suitable actuating handle protrudes from an aperture 23a in the head member IE3. Upon engagement of the gear lla by the latch rod Ilsa, the disk like housing is rigidly secured to the said gear rendering jack actuation possible by reciprocation of the said rod 26.

It is apparent that either the first or the sec ond jack actuating means may be employed at the discretion of the operator, each means being unafiected by the operation of the other.

A pressure gauge 38, connected to jack 2!) by means of tube 38 indicates the pressure exerted by the said jack. This pressure gauge is provided as a safety measure whereby the operator is able to see how much pressure is being exerted and may conduct his shoe adjusting accordingly. This provision is important since oversize hydraulic presses or jacks 2d are employed to produce longer life for this member, and if the full power of the jack were unintentionally applied, serious damage to the shoe might result. Suitable safety pressure release means may also be provided for releasing excess hydraulic pressure over an adjustable, predetermined value.

A lift 40 is provided in aperture 18 and is operatively connected to the jack 20 by means of the shaft 42. A plurality or guides or rails 34 are secured to lift 40 and a pair of bearing plates 46 are secured in said rails 44, as shown in Figure 1. This arrangement provides a receiving and clamping means for anvils 48 and 50.

Anvils 48 and 50 form a part of the present invention and shall be described at this time. Flanges 52 are provided at both ends of said anvils and are adapted to mate both the rails 44 and the mold clamps 54 to be hereinafter described. Obviously, each end of the anvil may be used as a recipient for the mold 56 or for slidable clamping engagement with the rails 44 and bearing plate 46. With these improved anvils only half the number ordinarily required are needed, whereby a material saving of metal is realized.

The conventional mold 56 as used in the prior art is shown attached to anvil 48 in Figure 5 by an improved means of clamping. A pair of clips 54 attached to mold 56 are adapted to engage the anvil 43 so that the mold may be shifted slightly at the discretion of the operator to adapt it more readily accurately to the particular job to be done.

A second type of improved mold 583, shown best in Figure 6, is provided for use on either or both of the anvils, said mold being magnetized and depending upon the attraction between it and the anvil for securing thereto. The advantages of a magnetic mold are great in number and in importance. No mechanical clamping means are necessary and thus a great savin of metal is realized. The time required to secure the mold in place is negligible as compared to the time required for securing the conventional mold. The magnetic mold 58- has the same advantage as the improved mold 56 of being easily adjusted slightly in any direction at the discretion of the operator.

It is here noted that the invention contemplates the use of magnetized anvils in place of magnetized molds and the invention also contemplates the simultaneous use of. magnetized molds and anvils.

A third type of improved mold contemplated by this invention is shown clearly in Figures 6, '7 and 8 wherein molds 6U, =62 and 64 exemplify the said third type. In Figure 7 the mold B2 is shown With a depending flange or lip 66 for engagement with the flange 52 or the anvil. The purpose of this flange is to act as a guide to prevent sliding of the said mold in :a predetermined direction and to act as a sensing means for the operator to feel Where the mold is located with respect to the shoe during operation of the device. It has been found that this flange 66 alone is not sufiicient to prevent slippage entirely since it is obvious that the mold. may move in a direction parallel to the flange. This problem is solved by magnetizing the mold and/or anvil to a selected strength so that attraction between the two metallic bodies secures them in fixed relation.

Molds and (i l are shown exemplifying different shapes of molds for divergent adjusting operations on shoes. These molds are magnetized and are provided with lip portions as described hereinabove.

A pair of molds 6i and G8 are attached to the top portions of frame member l6, each having its own particu ar function. Mold 68 is contoured specially for widening open toe shoes. It has the general shape of the inside of a shoe and is constructed so that the open toe shoe may be pushed on said mold thereby spreading and widening the shoe. Mold Bl also protrudes from member l6 and is adapted particularly for removing the indentations in the heel portions and toe portions of shoes. The mold 6! is a longitudinal solid of circular cross section, thev diameter increasing progressively from the root portion to a maximum, thence dropping off to zero.

As seen in Figure 1, two anvils 50 and 48 are used simultaneously. This is extremely advantageous since two shoes can be adjusted at once. If unequal pressure on each shoe is desired a shim of slightly resilient material may be placed between one of the shoes and the plate 14 to be described hereinafter;

In the operation of this device, the shoe is placed on the anvil, with a mold or molds in the proper place, then either arm 22 or 26 is actuated pushin the lift 40 upward and pressing the shoes against the top portion of head It through the medium of plate 74. During the operation of a device of this character the shoe and mold usually have to be adjusted relative to the anvil portion many times. All that is necessary to remove the shoe is to turn the hydraulic pressure release valve knob lowering the lift and then the anvil may be slid out of its moorings. This operation is quite an advance over the operation required in the conventional apparatus which has a heavy clamping element to be lifted each time the shoe is to be manipulated in the machine.

Secured in the aperture [8 and to the upper portion of monobloc head member It by suitable means such as screws 12 or the like, is a resilient plate 14 preferably composed of spring steel or the like. The function of this plate is to provide a resilient base for the shoes to bear upon and to impart an initial urging force for pushing the lift downward upon the opening of valve iii.

While there is illustrated but a preferred embodiment of the instant invention, it will become apparent to those skilled in the art that various changes, including additions and omissions, may be made herein without departing from the spirit and scope of this invention as set forth in the accompanying claims.

Having thus described my invention, I claim:

1. In a machine for breaking in shoes, the combination of a supporting frame, a monobloc head supported thereon having an aperture therein, a lift member slidably secured in said head and received in said aperture, an anvil, means for detachably securin said anvil to said lift, a mold secured to said anvil, hydraulic jack means secured in said head for actuating said lift, said securing means including a plurality of rails engaging said lift for slidably securing said anvil member thereto, and a plurality of selectively operable manual actuating means protruding from apertures in said head for actuating said hydraulic jack means.

2. In a machine for breaking in shoes, the combination of a supporting frame, a monobloc head supported thereon having an aperture therein, a lift slidably secured in said head and received in said aperture, tracks secured to said lift. an anvil detachably received in said tracks, a magnetized mold slidably secured to said anvil, hydraulic jack means secured in said head having said lift operatively connected thereto, a plurality of selectively operable actuating means protruding from apertures in said head, said actuating means comprising a manually operated arm and a second arm adapted to be actuated by foot pressure.

3. A machine for adjusting shoes to conform with normal and abnormal curvatures of the foot comprisin a supporting frame, a single piece head having an aperture therein secured to said frame, a recess in said head having a partition separating said recess and said aperture, a hydraulic jack positioned in said recess, openings in said head, selective means for actuating said jack projecting through said openings, lift means in said aperture and operatively connected to said jack, an anvil, means for slidably receiving and retaining said anvil on said lift, a mold magnetically secured to said anvil, resilient means for biasing said lift means in a predetermined raised position secured to said head within said aperture.

4. The combination of claim 3, said resilient means comprising a resilient plate.

A machine for breaking in shoes comprising a supporting frame, a monobloc head having an aperture, said head attached to said frame, a hydraulic jack secured within said head, a lift attached to and actuated by said jack, an anvil in said aperture, means including rails for detachably securing said anvil to said lift, resilient means disposed on the upper portion of said monobloc head for biasing said lift at a predetermined raised position thereof, said resilient means including a resilient plate located within said aperture, and selective means for actuating said hydraulic jack.

ABRAHAM SACHS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 211,427 Ross, Jr Jan. 14., 1879 966,894 Feeney Aug. 9, 1910 1,439,546 Graves Dec. 19, 1922 1,489,605 Legge Apr. 8, 1924 1,640,884 Coleman Aug. 30, 1927 1,875,304 Grier et a1 Aug. 30, 1932 1,958,426 Grier et a1 May 15, 1934 2,007,814 Segal July 9, 1935 2,237,161 Rennie et a1 Apr. 1, 1941 2,385,336 Duplessis Sept. 25, 1945 FOREIGN PATENTS Number Country Date 402,315 Great Britain Nov. 30, 1933

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