US2455360A - Shoe last and support - Google Patents

Description

Dec. 7, 1948.

J. FARlNA SHOE LAST AND SUPPORT a Sheets-Sheet 1 Filed April 3, 1946 gag;

I N VEN TOR.

A'ITD R N EYB Dec. 7, 1948. J. F AR|NA 2,455,360

SHOE LAST AND SUPPORT Filed April 3. 1946 2. Sheets-Sheet 2 v 3 t 1 84 as 3A 8 5 I 27 FIG. 7. 6

INVENTOR. JUL IUS FAR/IVA ATTORNEYS Patented Dec. 7, 1948 UNEED snor: LAST AND SUPPORT Julius Farina, Keene, N. IL, assignor to Princess Shoe Company, Keene, N. IL, a corporation of New Hampshire Application April 3, 1946, Serial No. 659,306

3 Claims.

The present invention relates to an improved shoe last and support for use by operators in the manufacture and repair of shoes; the primary object of the invention being the provision of a last and its support that may with facility be adjusted and manipulated speedily and with convenience for accomplishing the various steps in the process of manufacture and repair.

In carrying out my invention I provide a sectional extensible shoe last in combination with a supporting stand or base, and the last is mounted in its supporting base for a swivel movement through a complete circle; and the last, in addition to its swiveling movement is capable of an oscillatable movement through a semi-circle about the'swivel axis. Means are provided for retaining the last in adjusted position in connection with its swivel movement; and in connection with the oscillating movement means are provided for projecting and retracting the sectional extensible last in its adaptation to the work or shoe in the course of manufacture or repair.

The invention consists in certain novel combinations and arrangements of parts involving mechanical structures adapted to co-operate in the manner indicated for accomplishing these desired results as will be more specifically described and claimed.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the parts are combined in accord with one mode I have thus far devised for the practical application of the principles of my invention, but it will be understood that changes and alterations may be made in these exemplifying drawings and mechanical structures, within the scope of my claims without departing from the principles of the invention.

Figure l is a vertical sectional detail view of an embodiment of my invention, showing the swiveled and oscillatable last in retracted orsmall size position.

Figure 2 is a vertical sectional view of the extensible last in projected or extended position.

Figure 3 is a bottom plan view of the last in Fig. 2.

Figure 4 is a bottom plan view of the last, broken away to show a horizontal section as at line fl-4 in Fig. 1.

Figure 5 is a sectional detail view at line 5-5 of Fig. 2.

Figure 6 is a vertical detail sectional view of the counterbored heel block or section of the last as at line t6 of Fig. 3.

Figure 7 is a transverse sectional view through 2 the push-rod or plunger and its thimble, as at line 1-4 of Fig. 2.

Figure 8 is a detail perspective view ofthe coupling spindle and related parts for translating rotary oscillating movement into longitudinal reciprocating movement of the push-rod to project and retract the toe-section of the last;

Figure 9 is a perspective view of the coupling link of the oscillating mechanism.

Figure 10 is a vertical sectional view through parts of the hollow base and bearing block forming the support or stand for the mechanism.

Figure 11 is a lower face view or bottom end view of the swivel post.

Figures 12 and 13 are respectively transverse sectional views at lines l2l2 and l3-l3 in Fig. 1; and Fig. 14 is a perspective View of one of the spring pressed detents or clutch members for the swivel-post.

In. the assembly views I have illustrated a last or extensible shoe-form of the type employed in the manufacture and repair of womens shoes, but it will be understood that the invention may be embodied in other types and sizes of lasts including a heel block I and an adjustable toe-section 2, the adjoining faces of which are preferably disposed on planes oblique to or diagonally of the axis of rotation of the operating parts of the appliance.

The toe section of the inverted last is bored to receive and retain a pair of spaced interior metallic thimbles or liners 3 and l arranged in parallelism, and complementary alined bushings or sleeves 5 and 6 are mounted in. the heel block.

A dowel pin or guide "I is rigidly fixed in the bushing B and slidable in the bushing 4, and a push-rod 8 which is slidably mounted in the sleeve 5 is coupled to the thimble 3 in suitable manner, as by an inner crimp or tongue 3a of the thimble that fits into a groove 8a extending around the push-rod.

The heel-block, which is bored and counterbored, is provided with an exterior fiat metallic face-plate 9, and the toe-section is equipped with a face plate l0 preferably of elastic or resilient metal; both plates being secured to the respective members by means of screws, as indicated.

'As best seen in Figs. 1, 2, and 3, the toe-plate terminates in a free edge or spring tongue I I that overlaps and frictionally engages the heel-plate, thus applying pressure thereto for maintaining and retaining the last-sections in properly set position, regardless of the movement and location of the-toe-section in relation to the heelblock.

The bored and counter-bored heel-block provides an interior cylindrical opening, in the lower portion of which is secured a fixed flanged metallic wear sleeve ii! that is journaled, as a swivel bearing upon an upright swivel post l3 of the appliance. The post, which forms a swivel support for the last in its limited oscillating movement, is also mounted to partake of a rotary swivel movement about the vertical axis of the appliance, and this rotary swivel movement is controlled by a set of pressure-released springpressed detents, which detain the post in adjusted swivel-position.

For this purpose the post is fashioned with an integral horizontal disk or circular bearing head 14 that performs the functions of an automatic clutch member, and the lower threaded end of the post is extended through and rotatably mounted in a fixed bearing-block l5. The threaded lower end of the post is provided with a washer l6 for wear against the bearing block, and a fastening nut I! threaded on the post below the washer is fixed or locked on the post as by an Allen set screw l8.

The bearing block I is rigidly fixed on the top face of a hollow base i811 that is mounted upon a bench, table, or other support, and the open-center integral head [9 of the base is fashioned with an exterior annular flange 20 for retaining the bearing block. A series of spaced attaching screws 2! are passed up through the head IQ of the hollow base and threaded into the bearing block in order that the base and bearing block will provide a substantial support or stand for the operating parts of the appliance.

To retain the swivel post in its rotatably adjusted position I utilize a pair of diametrically arranged spring-pressed detents 22, mounted in upright bores of the bearing block l5, and springs 23 are interposed between the lower ends of the retained detents and screw-plugs 24, for pressing the protruding points of the detents into complementary sockets or indentations 25 in the under-face of the posthead I4.

This resilient clutch engagement between the swivel post and its bearing block permits a swivel movement of three hundred and sixty degrees for the post and the last mounted thereon, and the swivel movement may be stopped and the adjusted post and last may be retained, in usual manner bythe spring-pressed detents.

The over-all length or size of the sectional last or shoe-form is extended and contracted by projecting and retracting the toe-section 2 with relation to the relatively fixed or stationary heelblock I through the reciprocal operations of, the push rod 8 to which the toe-section is anchored as described, and the push rod is actuated and reciprocated radially of the swivel axis of the appliance.

By manually turning the last, within a range of one hundred and eighty degrees, about the swivel axis of the appliance, the projecting and retracting movements of the toe-section are attained. As best seen in Figs. 1 and 8 the upper end of the swivel post I3 is fashioned with a squared or angular open socket 26, and an oscillatable, upright, tubular coupling spindle 21, located in the bore of the heel-block, is fashioned with a complementary shank 28 fitted in the socket to turn with the post.

The oscillatable coupling spindle is provided with a transverse fiat semi-circular head 29 located in the enlarged counterbore of the heelblock and seated to turn upon the upper end of the fixed sleeve l2 as a bearing. This head is enlarged, as at 30 to form spaced shoulders 3|, 3| spaced approximately one hundred and eighty degrees apart to permit the last to be swung or oscillated about its swivel axis through the same dis tance, and a stop pin 32 projects down from the face plate 9 through the counterbore and into the heel-block for engagement with one or the other of the shoulders.

A coupling link 33, which is hinged at 34 to the inner end of the push-rod 8 is mounted over the spindle-head and pivoted at 35 on a pin 36 offset from the center of the spindle-head, and a spring 31 interposed between plate 9 and the pivot bearing of the link holds the link down in operative position.

In Figs. 1 and 4 where the push-rod is retracted and the toe-section is drawn into contact with the heel-section or block. the link is alined with the push rod and the hinge joint 34 and pivot bearing 35 are diametrically alined across the swivel axis of the last. In Fig. 2, where the push-rod has projected the toe-section to fully extended position the link and its joints have been located on the same radial line at one and the same side of the swivel axis.

By reference to Fig. 4, it will be seen that by turning the heel-block counterclockwise, pin 32 will oscillate or turn head 29-40 and the spindle about the swivel axis through an arc of one hundred and eighty degrees for projecting the tousection from position of Fig. 4 to position of Fig. 3, where the coupling link is shown by dotted lines at the opposite side of the axial center of the appliance.

During this oscillating movement of the spindle, the link is also oscillated on its bearing pin 36, and the counterbored cavity of the heel-block is laterally extended to accommodate the movement of the link. In this oscillating movement of the spindle and the link, the rigid push rod maintains its longitudinal alinement within the thimble 3 and the sleeve 5 of the respective toe and heel blocks or sections.

From this description taken in connection with the drawings it will be apparent that the appliance may readily be manipulated for various adjustments in the different steps required in the manufacture and repair of shoes, to facilitate the work of the operator in the efiicient performance of his labor, and reduce the time and labor expended in the manufacture and repair of shoes.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A shoe last including a heel-block, an adjustable toe-section mounted on the heel-block and mechanical connections mounted in the heelblock and co-acting with the toe-section for translating swivel movement of the heel-block into longitudinally reciprocal movement of the toe-section.

2. A shoe last including a heel-block, a dowel pin and a co-planar push-rod mounted in the heel-block, a toe-section slidable on the dowel pin and anchored on the free end of the pushrod, means actuated by swivel movement of the heel-block for reciprocating the push-rod, a face plate secured to the heel-block and a resilient face-plate secured to the toe-section in frictional engagement with the face plate of the heel-block.

3. A shoe last including a heel-block with a last pin hole therein, a dowel pin and a co-planar push rod mounted in the heel-block, a toe section slidable on the dowel pin and anchored on toe section, said disc having two shoulders at op- Number posite sides thereof, and a second pin located in said recess carried by the hee1-b1ock engaging the shoulders of the disc to limit rotation of the 10 213931787 disc.

JULIUS FARINA.

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

UNITED STATES PATENTS Name Date Clausing July 14, 1936 Ryan Sept. 21, 1937 Levagge Jan. 29, 1946

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