US2094115A - Heel-seat fitting machine - Google Patents

Description

p 1937. E. A; BESS'OM ET AL 2,094,115

HEEL SEAT FITTING MACHINE Filed Dec. 10, 1936 Patented Sept. 28, 1937 UNITED STATES PATENT OFFICE Williams, Cincinnati,

Ohio, assignors to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application December 10, 1936, Serial No. 115,168

8 Claims.

This invention relates to machines for use in the manufacture of shoes and is illustrated as embodied in a jack which may be advantageously used in connection with heel-seat fitting machines.

One object of the present invention is to provide a yieldable jack, adapted for use in a heelseat fitting machine, for example in a machine of the general type disclosed in United States Letters Patent No. 1,980,371, granted November 13, 1934, on an application filed in the name of Earl A. Bessom, by the use of which a shoe off the last may be quickly and effectively presented to the machine and which when moved into a predetermined position rigidly supports the shoe thereby enabling the operator eifectively to pound the fitted heel seat of the shoe to a predetermined shape.

The various features of the invention will-be understood and appreciated from the following detailed description read in connection with the accompanying drawing in which a Fig. 1 is a side view of the illustrated jack moved into its rear position in the above-mentioned machine, preparatory to reducing the heel-seat portion of the sole of a shoe mounted upon the jack;

Fig. 2 is a view similar to Fig. 1 showing the jack of the machine moved into its front position in which the shoe is rigidly supported while its fitted heel seat is pounded; and

Fig. 3 is a perspective view of an attachment used in connection with on-the-last work in place of the off-the-last form illustrated in Figs. 1

' and 2.

The illustrated jack is described with reference to the above-mentioned heel-seat fitting machine disclosed in United States Letters Patent No. ,980,371 and comprises a main frame II], a crease plate l2 having a U-shaped opening (not shown), and a back gage M (Fig. 1) for positioning a shoe l6 mounted upon the jack lengthwise in the machine. A shoe support I8 of the jack com- I prises a post 20 secured by a screw 22 to a form 2| which fits within the heel end of the inside of the shoe IS. The post 20 engages within a bore 24 of a carrier 26 which, together with the support I8, is swung by the operator about a fixed bearing 28 carried by the main frame In of the machine. The lower portion of the post 2!] has a recess 30 for receiving a compression-spring 32 which extends to the bottom of the bore 24 and tends to lift the post 28. I

The shoe to be operated upon is placed upon the form 2l when the jack is in its front position. As the operator swings the shoe Iii mounted upon the form 2! rearwardly from the front position he depresses the shoe against the action of the spring 32 causing sharp edges 34 of the crease plate l2 which are spaced by the open end of the U-shaped opening (not shown) to engage progressively within the sides of the rand crease of the shoe. When the shoe has been swung into engagement with the back gage Hi, portions of the crease plates l2 bordering the U-shaped opening support the entire margin of the heel seat portion of the sole. The margin of the heelseat portion of the sole of the shoe is then clamped against the crease plates l2 by the depression of a treadle 33, continued downward movement of which actuates a one-revolution clutch (not shown) to operate heel-seat reducing and shoulder-forming knives (not shown). Since the construction and operation of the abovementioned machine is fully disclosed in United States Letters Patent No. 1,980,371 further descrlption of the same will not be necessary.

Considerable effort is sometimes required to engage the plate l2 Within the rand crease of the shoe. This is especially true of McKay work in which it is frequently necessary to out several sole-attaching stitches, and also of compo work in which the adhesive bond between the shoe upper and the forward margins ofthe heel-seat portion of the sole of the shoe frequently has to be broken by the crease plates. Shoes on the last are usually presented by hand to the above machine. Manual presentation of shoes off the last to the above machine is relatively slow and imposes a physical strain upon the operator. Moreover, when shoes off the last are presented by hand to the machine they are often distorted to an undesirable extent. By the use of the above jack the operator can quickly and effectively position shoes off the last in the machine without danger of distorting the same.

It is common practice for the operator, after reducing the heel-seat portion of the sole of the shoe, to place the shoe upon a form (not shown) having a concave upper face and mounted upon an adjacent bench, and then to pound the central part of the heel-seat of the shoe against the concave face. During the above pounding operation the margin of the heel seat of the shoe is raised with relation to-the central part of the heel 'seat, thereby flattening out the heel seat to some extent and insuring the formation of a closed joint of pleasing appearance between the heel and the counter portion of the finished shoe.

In order that the operator may effectively pound the fitted heel seat of the shoe as above described before removing the shoe from the machine, the form 2| which has a concave upper face 38, when swung to the front operative position (Fig. 2) is rigidly secured against downward displacement by mechanism which will now be described. Slidingly mounted upon the post 20 of the support I8 is a sleeve 40 for forcing a stop 42, illustrated as a collar secured to the post, against the top face 44 (Fig. 1) of the carrier 26 when the support has been swung into its front position. The sleeve 40 is pivotally connected to a rod 46 the lower end of which is journaled upon a stud 41 of a bracket 48 adjustably secured to the frame of the machine. through the provision of screws 50. When the support I8 and the carrier 26 are swung rearwardly from the front position (Fig. 2) the sleeve 40 is raised with relation to the carrier, thereby enabling the operator to position the shoe IS with relation to the crease plate. as above described.

After the operator has mounted the shoe l6 upon the form 2| he swings the jack rearwardly, depressing the shoe sufficiently to cause the crease plate to engage within the rand crease of the shoe. Rearward movement of the shoe is limited by the back gage I 4 which, as above stated, positions the shoe lengthwise in the machine. Downward pressure against the shoe is then relieved thereby enabling the spring 32 to force the shoe against the bottom of the crease plate l2. After the shoe has been positioned in the machine the treadle 33 is depressed to clamp the margin of the heel-seat portion of the sole against the crease plate l2 and then to operate the abovementioned heel-seat reducing and shoulderforming knives (not shown). During the heelseat reducing operation the operator usually exerts a rearward pressure against the shank portion of the form 2| in order to hold the heel securely against the back gage I4. After the heelseat portion of the sole of the shoe has been reduced the operator swings the shoe upon the form 21 into the position illustrated in Fig. 2 and pounds the central part of the heel seat of the shoe against the concave upper face 38 of the form by the use of a hammer 5|. The shoe is then removed from the machine.

In order to equip the machine for on-the-last work there is provided a holder 52 (Fig. 3) which may be quickly secured to the post 2!] through the provision of a screw 54. The upper end of the holder 52 is provided with a guideway 56 for receiving the lower end of a carrier 58 to which a last pin 60 is secured.

Although the jack is illustrated with reference to a heel-seat fitting machine it will be understood that the same may be advantageously used in connection with other types of machines for operating upon shoes.

Having described the invention, what we claim as new and desire to secure by Letters Patent of the United States is:

l. A machine for operating upon shoes having, in combination, an abutment, a support for a shoe, a carrier for the support, resilient means interposed between the carrier and the support, said carrier and support being movable together from one operative position to another, a stop secured to the support, and mechanism for forcing said stop against the carrier when the carrier and the support are in one of said operative positions thereby securing the support to the carrier, said mechanism being constructed and arranged to enable said resilient means to move said stop away from the carrier when the car rier and the support are moved away from said one operative position.

2. A heel-seat fitting machine having, in combination, a plate, a support comprising a stop and a form shaped to engage within the heel end of the inside of a shoe, a carrier for the support, said support being mounted for movement from one operative position to another, resilient means interposed between the carrier and the support, and mechanism for forcing the stop against the carrier when the support has been moved into one of said operative positions thereby securing the support rigidly to the carrier, said mechanism being constructed and arranged to enable said resilient means to move the stop and therefore the form away from the carrier when the support is moved from said one operative position thereby enabling the operator to depress the shoe against the action of said resilient means as he engages said plate within the rand crease of the shoe and also enabling said resilient means to force the shoe. against the plate when said depressing pressure is relieved.

3. A heel-seat fitting machine having, in combination, a plate, a support comprising a stop and a form shaped to engage within the heel end of the inside of a shoe, a carrier for the support, said carrier and said support being mounted for, movement together from one operative position to another, resilient means interposed between the. carrier and the support, and mechanism for forcing the stop against the carrier when the i carrier and the stop have been moved into one operative position thereby securing the support rigidly to the carrier, said mechanism being constructed and arranged to enable said resilient means to move said stop and therefore the form away from the carrier when the carrier and the support are moved from said operative. position thereby enabling the operator to depress the shoe against the action of said resilient means with relation to the carrier for engaging said plate within the rand crease of the shoe and also enabling said resilient means to force the shoe against the plate when said depressing pressure is relieved.

4. A heel-seat fitting machine having, in combination, a plate, a back gage, a support comprising a stop and a form shaped to engage within the heel end of the inside of a shoe, a carrier for the support, said carrier and support being mounted for pivotal movement together, a spring interposed between the support and the carrier, and mechanism for forcing the stop against the carrier when the carrier and the support have been swung to an operative position away from the back gage thereby rigidly securing the support to the carrier, said mechanism being constructed and arranged to enable the spring to move the stop and therefore the form away from the carrier when the carrier and the support are moved away from said one operative position thereby enabling the operator to depress the shoe mounted upon the form against the action of the spring with relation to the carrier for engaging said plate within the rand crease of the shoe and also enabling the shoe in engagement with said back gage to be forced against the plate by the action of the spring when said depressing pressure is relieved.

5. A machine for operating upon shoes having,

'in combination, an abutment, a support comprising a stop and a form shaped to engage within the heel end ofthe inside of a shoe, a pivotally mounted carrier for said support, a spring interposed between the carrier and the support, a member slidingly connected to the support, and a rod pivotally connected to said member and mounted for movement about an axis spaced a considerable distance from said member, said rod and said member being constructed and arranged to force said stop against the carrier when the support and the carrier have been swung into one operative position thereby rigidly securing the support to the carrier, said rod and said member also being constructed and arranged to enable said spring to move the stop a substantial distance from the carrier when the carrier and the support are swung from said one operative position thereby enabling the operator to depress the support with relation to the carrier against the action of the spring for presenting the shoe tothe machine and also enabling the spring to force the shoe against said abutment when said depressing pressure is relieved.

6. A machine for operating upon shoes having, in combination, an abutment, a support for a shoe, said support comprising a post and a stop secured to the post, a carrier for the support, said carrier and support being mounted for swinging movement together, a spring interposed between the post and the carrier, a sleeve mounted for movement upon said post, a rod pivotally connected to said sleeve and mounted for movement about an axis spaced from the sleeve, said sleeve and rod being constructed and arranged to force the stop against said carrier when the support and carrier have been swung into one operative position thereby rigidly securing the support to the carrier, said sleeve and rod also being constructed and arranged to enable the spring to move the stop away from the carrier when the carrier and the support are moved away from said one operative position thereby enabling the operator to depress the shoe mounted upon the support against the action of the spring for presenting the shoe to the machine and also enabling the spring to force the shoe against the abutment when said depressing pressure is relieved.

7. A machine for operating upon shoes having, in combination, an abutment, a support for a shoe, a carrier mounted for pivotal movement,

said carrier having a bore for receiving a portion of said support, a spring interposed between the support and the carrier in said bore, a sleeve slidingly mounted upon the support, a stop secured to the support and positioned between the carrier and the sleeve, a rod pivotally connected to the sleeve and mounted for pivotal movement about an axis spaced from said sleeve, said rod and sleeve being constructed and arranged to force the stop against said carrier when the support and the carrier have been swung into one operative position thereby rigidly securing the support to the carrier, said rod and sleeve also being constructed and arranged to enable the spring to move the stop away from the carrier when the carrier and the support are moved away from said one operative position thereby enabling the operator to depress the shoe mounted upon the support with relation to the carrier against the action of said spring for presenting the shoe to the machine and also enabling the spring to force the shoe against the abutment when said depressing pressure is relieved.

8. A heel-seat fitting machine having, in combination, a crease plate, a support comprising a post and a form shaped to engage within the heel end of the inside of a shoe, a stop connected to said post, a carrier having a bore for receiving said post, a spring interposed between the carrier and the post in said bore, a sleeve slidingly mounted upon said post between the form and the stop, a rod pivotally connected to said sleeve and mounted for movement about an axis spaced from said sleeve, said sleeve and rod being constructed and arranged to force the stop against said carrier when the support and carrier have been swung into one operative position thereby rigidly securing the form to the carrier, said sleeve and rod also being constructed and arranged to enable the spring to move the stop away from the carrier when the carrier and the support are moved away from said one operative position thereby enabling the operator to depress the shoe mounted upon the form with relation to the carrier against the action of said spring for presenting the shoe to the machine and also enabling the spring to force the shoe against the crease plate when said depressing pressure is relieved.

EARL A. BESSOM. ERNEST A. WILLIAMS.

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