US2378038A - Heel support - Google Patents

Description

June 12, 19 5- I G. K. RICHARDSON HEEL SUPPORT Filed July 29, 1944 I Jfwenfor G e organ/ (Pic harblson Patented June 12, 1945 George K. Richardson, Wenharn, Mass, assignor to United Shoe Machinery Corporation, Flemingt'on, N. J., a corporation of New Jersey Application July 29, 1944, Serial No. 547,113

6 Claims.

This invention relates to shoe supports and more particularly to means for supporting the heel end of alast during an operation on a shoe carried thereby. The invention is illustrated herein as embodied in a machine of. the type de scribed in Letters Patent of the United States, No. 1,549,243, granted Augustll, 1925,'on an application of E. E. Winkley, having a sole-pressing member or pad arranged to apply pressure to the bottom of a shoe on a last and a jack for supporting the shoe against the pressure of the pad. It is to be understood, however, that the invention is not limited to shoe supports for use in machines of that particular character.

An object of the invention is to provide a jack having an improved heel support provided with means for spreading those portions of the upper of a high shoe projecting above the top of the last to prevent pinching of the upper between the top of the last and the heel support. To this end and in accordance with a feature of the invention, the heel support is provided with a rocker engageable with the top of the heel end of the last and movable by its engagement with the last prior to the pressure-applying operation to operate a pair of arms which are swung outwardly to spread the upper and lining away from the top of .the last, the arms being carried by the heel support and normally held adjacent thereto.

The above and other features of the invention, including various details of construction, willnow be more particularly described by reference to the accompanying drawing and thereafter pointed out inthe claims.

' In the drawing,

Fig. 1 is a front elevation of the head of a machine of the type shown and described in the above-mentionedpatent, with the invention applied thereto;

Fig. 2 is a vertical section support, and

Fig. 3 is a section on the line III-III of Fig. 2 illustrating the action of the fingers on the upwardly projecting portion of a shoe upper.

The present invention is illustrated as embodied in a solepressing machine of the type shown in the above-mentioned Winkley patent to which reference can be had for a more de-. tailed description of the construction, arrangement and operation of parts not'fully described herein. The machine is provided with a pair of upwardly extending rods It], only one of which is illustrated herein, which guide a pad box I2 for vertical sliding movement. Carried by the pad through the heel box I2 is a resilient sole-pressing pad I4 shaped to conform substantially to the curvature of the bottom of a shoe being operated upon. After a shoe has been placed on the pad. [4 the pad box is moved upwardly to carry the shoe into engagement with a jack l 6. This jack comprises a head I8 secured to the upper endsof the rods 10, and depending posts 20, 22 adjustably secured tothe head and carrying respectively a toe-engaging roll 24 and a rocker 26 arranged to engage the heel end of the last.

. The rocker 26 is shown more clearly in Fig. 2 as mounted for tipping movement at the bottom of the post 22 and for this purpose is provided withan arcuate surface 28 received in a correspondingly shaped groove 30 in the lower end of the post. A pin 32 in the lower end of the post passes through an arcuate slot 34 in the rocker to guide the latter member in its movement with respect to the post. normally held in the inclined position shown in Fig. 2 by a tension spring 36,. the upper end .of which is secured to a pin 38 in a slot 40 in the post 22 and the lower end of which is connected to the rocker by a link 42. As the shoe is carried upwardly by the pad box the left end of the rocker as viewed in Fig. 2 first engages the top'surface of the heel end of the last'and upon slight fur ther upward movement of the pad box, the rocker turns in a clockwise direction until the bottom surface thereof is in contact with the top surface ofthe last.

This. movement of the rocker 26 prior to the sole-pressing operation is utilized to actuate means for spreading the lining and upper at the top of a high shoe or boot such as the shoe S shown in Figs. 1 and 3 so that the materials of The post is slotted in' the vicinity of the cars 48 as shown in Fi 3 to accommodate the arms 44. When the pad box 12 is in itslowermost position the lower ends of the arms 44 .are in the dotted line positions shown in Fig. 3 and are thus held by a compression spring 50 passing through the post 22 and engaging projections 52 carried by the arms 44 above the pivots 4B. The lower ends of the arms are curved toward each other as shown in Fig. 3 so that at the beginning of the upward movement of the pad box the arms will enter the shoe and start to move the lining The rocker is thereof. 'The ends of the pin are rounded as shown in Fig. 3 and cooperate with inclined surfaces 58 on the arms 44 so that downward move-:

ment of the link 42 as the rocker moves relaend of a last, means normally maintaining said rocker in a position in which said surface is inclined to the post'but permitting movement of the rocker relatively to the post as it engages a last, upper-engaging means carried by said post arranged to be moved outwardly thereof to spread the upwardly projecting portion of an upper away from the last, means normally maintaining said upper-engaging means adjacent to said post, and means operated by said rocker in response to its movement by engagement thereof tively to the post 22 carries the pin 54 downwardly and exerts a cam action. on the arms 44 i forcing them outwardly into the positions shown in Fig. 3. It will thus be seen. that those mate rials of the shoe which extend above the heel end of the last are efiectively spread apart thus elim inating any danger of the material beingcaughtbetween the lower end of the heel support and the operation thepad box 12 moves downwardly thus carrying the last out of engagement with the rocker 28',lwhereupon the spring 36 moves the rocker back into the position shown in Fig. 2, the pin 54' carried by the link 42 moving upwardly thu permitting the arms 44 to be-moved inwardly by the spring 50 to their original positions;

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

1'; In a heel support for a last, the combination of a supporting post, a last-engaging member carried by said post for tipping movement and arranged tobe thus moved relatively to said post in response to engagement of the member with a last; upper-engaging means carried by said ost arranged to be moved outwardly thereof to spread the upwardly projecting portion of an upper outwardly of the last, means normally maintaining said upper-engaging means adjacent to said post, and means operated by said last-engaging memher in response to its movement by engagement thereof with the last for moving said upper-enga ging means outwardly.

2. In a heel support for a last; the combination of a supporting post, alast-engaging member carried by said post for tipping movement and arranged to be thus moved relatively'to said post in response to engagement thereof with a last. a pair of arms pivoted to said post and arrangedto be moved outwardly thereof to spread the upwardly projecting portion of an upper away from the last, means normally maintaining said arms adjacent to said post; and means operated by said last-engaging member in response to its movement by engagement thereof with a ment relatively thereto and having a surface ar'- ranged for engagement with the top of the heel with a last for moving said upper-engaging means outwardly.

I 4. In a heel support for a last, the combination of a supporting post, a last-engaging rocker oarried by:the endof said post for tipping movement relatively thereto and having a surface arranged for engagement with the top of the heel end'of a last, means normally maintaining said rocker in a position in which said surface is inclined to the post but permitting movement of the rocker relatively to the post as it engages'a last, a pair of arms pivoted to said post and arranged to be moved outwardly thereof to spread the upwardly projecting portion of an upper away from the last, means normally maintaining said arms adjacent to said post, and means operated by said rocker in response to its movement by engagement thereof with a last for moving said arm outwardly.

5. Ina heel support for a last, the combination of a supporting post, a last-engaging member carried thereby for movement relatively thereto upon engagement of the member with the heel end of a last, a pair of arms pivoted to the post atopposite sides thereof, means urging'said arms toward each other, said arms being arranged upon movement thereof outwardly of the post to spread the upwardly extending portion of an upper away from' the last, said arms having inwardly and downwardly inclined inner surfaces,

a pin passing through a slot in the post and movement of the last-engaging member relativea ly to the post as said member engages the heel end of a last.

6. In a heel support for a last, the combination of a supporting post, a rocker carried by the end of said post for tipping movement relatively thereto and having a surface engageable'with the top ofthe heel end of a last, a spring urging said rocker into a position in which said surface is inclined to the post, said spring permitting movement of the rocker relatively to the post as itengages a last, apair of arms pivoted to the post at opposite sides thereof, means urging said arms toward each other, said arms being arranged upon movement thereof outwardly of the post to spread the upwardly extending portion of an'upper away from the last, said arm having inwardly and downwardly inclined inner surfaces, apin passing through a slot. in the post and engaging the inclined surfaces of said arms. and means connecting said pin to said rocker whereby thepin is movedlengthwise of the post during movement of the rocker as it engages the last'and exerts a cam action upon the inclined surfaces of said arms to move them outwardly.

GEORGE K. RICHARDSON.

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