US2999037A

US2999037A - Heel-attaching machine

Info

Publication number: US2999037A
Application number: US95316A
Authority: US
Inventors: Eberle Ernst
Original assignee: Individual
Current assignee: Individual
Priority date: 1961-03-13
Filing date: 1961-03-13
Publication date: 1961-09-05
Anticipated expiration: 1978-09-05

Description

Sept. 5, 1961 E. EBERLE 2,999,037

HEEL-ATTACHING MACHINE Filed March 15, 1961 INVENTOR.

ERNST EBERLE @562 7 97 rri igzys nitepd States Patent 2,999,037 HEEL-ATTA HING MACHINE Ernst Eberle, 29 I-Iindenburgstrasse, Magstadt, Germany Filed Mar. 13, 1961, Ser. No. 95,316 Claims. (Cl. 1-335) The present invention relates to a heel attaching machine in which the heel during nailing onto the shoe is retained by a pressure member engaging the tread surface of the heel and by a support member which engages the heel part adjoining the heel portion of the shoe, i.e., adjoining the heel portion of the shoe-upper.

In the machines of this type, known in the prior art, the shoe is placed, with the heel facing upwardly on a last-like plate. At the bar or rod movable in the vertical direction is normally secured the support member which engages the heel part adjoining the heel portion of the shoe. This rod is guided downwardly in the known prior art devices with the aid of a threaded spindle. The pressure member which engages the tread surface of the heel, however, is supported on these prior art machines, not on this rod, but separately and adjustably at the machine frame. Consequently, when the heel is to be nailed onto the shoe in these prior art machines, then, for purposes of retaining the heel on the shoe, at first the rod with the support member has to be rotated downwardly with the aid of the threaded spindle until the support member abuts against the heel. Thereafter, in an operation separate from the lowering of the support member, the pressure member has to be lowered against the tread surface of the heel and has to be secured thereat.

In contradistinction thereto, the present invention essentially consists in securing at the rod a self-adjusting pivot bearing at which the pressure member and support member are pivotally secured in such a manner that the same adjust themselves automatically to the height, shape and surface of the heel.

The present invention thereby entails the advantage that the difference in height at which the pressure member has to engage with heels of different heights is equalized by the pivot bearing so that, after lowering of the rod, neither the support member nor the pressure member have to be separately adjusted. The adjustment of both supports consisting of pressure and support member for purposes of retaining the heel on the shoe during the nailing operation, therefore, takes place in the machine according to the present invention, fully automatically which is not the case if both supports are rigidly secured at the aforementioned rod.

It is also appropriate, according to another feature of the present invention, to guide the pressure member abutting against the heel surface, in addition to the pivotable support thereof in the pivot bearing, within a guide means. The pressure member, in that case, is brought into engagement with the bottom surface of the heel always in the correct direction and does not have to be swung, during lowering of the rod, into the correct position thereof.

Of particular advantage is a construction of the present invention in which the pressure member is guided within the support member which engages the heel in proximity to the heel portion of the shoe. Preferably, the guide means is so designed and constructed that the angle which the pressure surface of the pressure member forms with the longitudinal axis of the last-plate changes automatically with the height of the heel. For, depending on the height of the heel, the angle of the tread surface with respect to the longitudinal axis of the last on which the shoe is clamped also changes.

Accordingly, it is an object of the present invention to provide a heel attaching machine which eliminates the Patented Sept. 5, 1961 drawbacks and inadequacies of the prior art constructions.

It is another object of the present invention to provide a heel nailing machine, and more particularly a heel retaining means for retaining the heel on the shoe during the nailing operation which adjusts itself fully automatically to the different possible heights of the heel which, especially with womens shoes, fall within a wide range.

Another object of the present invention resides in the provision of a heel attaching machine which simplifies the operation and more particularly requires only a single manipulation to bring into the operative position the heel retaining means, consisting of the support member and pressure member firmly supporting the heel to be nailed onto the shoe, by merely lowering the heel retaining means.

A further object of the present invention resides in the provision of a heel attaching machine in which the support member engaging the tread surface of the heel is separately guided directly within the pressure member to thereby enable automatic adjustment thereof for proper engagement with the heel surface.

Still a further object of the present invention lies in a novel and improved counter pressure clamp and heel gauging means which are fully automatic to facilitate handling of a machine having great versatility of application with dilferent styles of shoes.

These and other objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawing which shows, for purposes of illustration only, one embodiment in accordance with the present invention, and wherein FIGURE 1 is a perspective view of the overall machine in accordance with the present invention, and

FIGURE 2 is a partial side elevational view showing those parts of the machine in accordance with the present invention necessary for an understanding of the invention.

Referring now to the drawing wherein like reference numerals are used throughout the various views to designate corresponding parts, and more particularly to FIG- URE 1, reference numeral 1 designates therein the essentially C-shaped curved upright support on which a heel abutment 2 is secured over which the shoe may be slipped with the tread surface thereof facing upwardly. A toothed rack 3 is displaceably guided within a suitable aperture provided within the upper end of the support 1. A suitable ratchet lock (not shown) of conventional design may be incorporated into the machine to lock the toothed rack 3 in place after being lowered by swinging handle bar 3'.

A rocker 4 constituting a self-adusting pivot bearing is pivotably secured at the lower end of the rack 3. A support member 6, in turn, is pivotably supported about a bolt member 7 or the like at one end of the rocker 4. A pressure member 9 is pivotably supported about a bolt member 8 at the other end of the rocker 4 which pressure member 9 possesses a plane pressure surface 10 which abuts, during use of the machine, against the tread surface of a heel. The pressure member 9 is guided with the aid of guide bolts or trunnions 11 within guide slots 12 which are provided on both sides of the pressure member 9, within the support member 6. The support member 6 is provided along the lower rim thereof with a padding layer 13, for example, consisting of foam rubber, by means of which the part of the heel adjoining the heel portion of the upper of the shoe is pressed against the shoe. The support member 6 may be otherwise of any suitable, conventional design. The guide slots 12 are so arranged within support member 6 that the underside or bottom surface 10 of the pressure member 9 always extends parallelly to the tread surface of the shoe clamped over the last-like plate 2, irrespective of the height of the heel.

The heel attaching machine, except for the details described hereinabove may be of any conventional known construction including a rotatable lever 15 to perform the nail-driving operation nailing together the heel and shoe, known per se in the art, which form no part of the present invention so that a detailed description thereof is dispensed with herein.

While I have shown and described one embodiment in accordance with the present invention, it is understood that the same is not limited thereto but is susceptible of many changes and modifications within the spirit and scope thereof, and I, therefore, do not wish to be limited to the details shown and described herein but intend to cover all such changes and modifications as are encompassed by the scope of the appended claims.

I claim:

1. A heel attaching machine for attaching different types and sizes of heels to a shoe in which the heel while being secured to the shoe is retained in place by means of a pressure member acting on the tread surface of the heel with a force directed substantially perpendicularly thereto and by means of a support member acting on the heel part adjacent the heel portion of the shoe, comprising support means, heel retaining means including a pressure member and a support member, lowering means for lowering said members with respect to said support means, and means including first means pivotably connecting said support member and said pressure member individually to said lowering means and second means separate from said first means operatively connecting said support member with said pressure member for providing relative adjustment between said support member and said pressure member whereby the pressure member is accommodated to the tread surface of the heel upon actuation of said lowering means.

2. A heel attaching machine for attaching different types and sizes of heels to a shoe in which the heel while being nailed to the shoe is retained in place by means of a pressure member acting on the tread surface of the heel with a force directed substantially perpendicularly thereto and by means of a support member acting on the heel part adjacent the heel portion of the shoe, comprising support means, heel retaining means including a pressure member and a support member, lowering means for lowering said members with respect to said support means, and means operatively connecting said support member and said pressure member with each other and with said lowering means, said connecting means including a rocker arm having two ends, first pivot means pivotally securing said support member to one end of said rocker arm, second pivot means pivotally securing said pressure member to the other end of said rocker arm, third pivot means pivotally securing said rocker arm to said lowering means intermediate said ends, and means operatively connecting said support member and said pressure member with each other-to enable relative adjustment therebetween upon actuation of said lowering means with respect to the height, shape and tread surface of the heel whereby said pressure member is accommodated to the tread surface of the heel upon actuation of said lowering means and applies against said tread surface said substantially perpendicularly directed force.

3. In a heel attaching device for attaching diiferent types and sizes of heels to a shoe in which a heel is adapted to be nailed to an upper and which includes a stationary support member for supporting thereon the shoe with the tread surface facing upwardly, the improvement of a heel retaining assembly adapted to be raised and lowered with respect to said stationary support member, said assembly comprising lowering means, pressure means, support means, means operatively connecting said pressure means and said support means with said lowering means including first pivot means for said pressure means and second pivot means for said support means, and means operatively connecting said pressure means and said support means with each other to enable relative movement therebetween upon actuation of said lowering means to provide relative adjustment therebetween whereby said pressure means is accommodated substantially to the tread surface of the heel upon actuation of said lowering means.

4. A heel attaching machine in which the heel while being secured to the shoe is retained in place by means of a pressure member acting on the tread surface of the heel and a support member acting on the heel part adjacent the heel portion of the shoe, comprising support means, heel retaining means including a pressure member and a support member, lowering means for lowering said members with respect to said support means, and means operatively connecting said support member and said pressure member with each other and to said lowering means including first pivotal connecting means for said pressure member, second pivotal connecting means for said support member, and guide means for guiding said pressure member relative to said support members in such a manner that said members adjust themselves, upon lowering of said lowering means, to the height, shape and tread surface of the heel.

5. A heel attaching machine in which the heel while being nailed to the shoe is retained in place by means of a pressure member acting on the tread surface of the heel and a support member acting on the heel part adjacent the heel portion of the shoe, comprising support means, heel retaining means including a pressure member and a support member, lowering means for lowering said members with respect to said support means, and means operatively connecting said support member and said pressure member with each other and to said lowering means including a rocker arm having two ends, first pivot means pivotally securing said pressure member to said rocker arm near one end thereof, second pivot means pivotally securing said support member to said rocker arm near the other end thereof, and guide means for guiding said pressure member relative to said pressure member, and further pivot means pivotally securing said rocker arm to said lowering means intermediate said ends.

6. A heel attaching machine in which the heel while being nailed to the shoe is retained in place by means of a pressure member acting on the tread surface of the heel and a support member acting on the heel part adjacent the heel portion of the shoe, comprising support means, heel retaining means including a pressure member and a support member, lowering means for lowering said members with respect to said support means, and means operatively connecting said support member and said pressure member with each other and to said lowering means including a rocker arm, having two ends, first pivot means pivotally securing said support member to said rocker arm near one end thereof, second pivot means pivotally securing said pressure member to said rocker arm near the other end thereof, and guide means for guiding said pressure member with in said support member in addition to the pivotal support thereof near the respective end of said rocker arm to provide an automatic adjustment of the angle, which the surface of said pressure member forms with respect to the guide means, and further pivot means pivotally securing said rocker arm to said lowering means intermediate said ends.

7. In a heel attaching machine of the type provided with a frame member, a support plate for the shoe to be supported thereby in a position in which the tread surface thereof faces upwardly, a heel retaining device, and means for raising and lowering said heel retaining device with respect to said frame member, the improvement consisting of a heel retaining assembly comprising a support member, a pressure member, said support and pressure member cooperating with one another to retain the heel in position with respect to the upper of the shoe, a rocker arm pivotably secured to said lowering means, first pivot means pivotally connecting said support member to said rocker arm, second pivot means pivotally connecting said pressure member to said rocker arm, and guide means for guidingly supporting said pressure member with respect to said support member whereby said pressure member is accommodated to the tread surface of the heel upon actuation of said lowering means.

8. In a heel attaching machine of the type provided with a frame member, a support plate for the shoe to be supported thereby in a position in which the tread surface thereof faces upwardly, a heel retaining device, and means for raising and lowering said heel retaining device with respect to said frame member, the improvement consisting of a heel retaining assembly comprising a support member, a pressure member, said support and pressure member cooperating with one another to retain the heel in position with respect to the upper of the shoe, a rocker arm pivotably secured to said lowering means, first pivot means pivotally connecting said support member to said rocker arm, second pivot means pivotally connecting said pressure member to said rocker arm, and guide means for guidingly supporting said pressure member with respect to said support member, said guide means being formed by guide slots within said support member and guide pins provided on said pressure member extending into said slots.

9. In a heel attaching machine of the type provided with a frame member, a support plate for the shoe to be supported thereby in a position in which the tread surface thereof faces upwardly, a heel retaining device, and means for raising and lowering said heel retaining device with respect to said frame member, the improvement consisting of a heel retaining assembly comprising a support member, a pressure member, said support and pressure member cooperating with one another to retain the heel in position with respect to the upper of the shoe, a rocker arm pivotably secured to said lowering means, first pivot means pivotally connecting said support member to said rocker arm, second pivot means pivotally connecting said pressure member to said rocker 6 arm, and guide means for guidingly supporting said pressure member with respect to said support member, said guide means being formed by guide slots said support member and guide pins provided on said pressure member extending into said slots, and a padding along the lower rim of said support means by means of which said heel is pressed against the heel portion of the upper.

10. A heel attaching machine in which the heel while being secured to the shoe is retained in place by means of a pressure member acting on the tread surface of the heel and a support member acting on the heel part adjacent the heel portion of the shoe, comprising support means, heel retaining means including a pressure member and a support member, lowering means for lowering said members with respect to said support means, and means pivotably connecting said support member and said pressure member with each other and to said lowering means including first pivotal connecting means for said pressure member, second pivotal connecting means for said support member, and guide means for guiding said pressure member within said support member to provide relative adjustment between said members whereby said pressure member is accommodated to the tread surface of the heel upon actuation of said lowering means.

References Cited in the file of this patent UNITED STATES PATENTS 1,269,654 Standish June 18, 1918 1,457,435 Higgins June 5, 1923 1,558,501 Pope Oct. 27, 1925 1,583,849 Minett May 11, 1926 1,747,216 Bertrand Feb. 18, 1930 1,966,483 Brauer July 17, 1934 1,996,879 Pope Apr. 9, 1935 2,067,295 Thum Jan. 12, 1937 2,183,789 De Rusha Dec. 19, 1939 2,193,084 Aeschbach Mar. 12, 1940 2,199,514 Stratton May 7, 1940 2,600,507 Leahy June 17, 1952 2,764,768 Ashley Oct. 2, 1956 2,881,439 Dell Apr. 14, 1959