US3268930A

US3268930A - Lasting machines

Info

Publication number: US3268930A
Application number: US442749A
Authority: US
Inventors: Jr Adelbert W Rockwell; John A Meuse; Albert E Newton
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1965-03-25
Filing date: 1965-03-25
Publication date: 1966-08-30
Anticipated expiration: 1983-08-30

Description

g- 1966 A. w. ROCKWELL, JR, ETAL. 3,268,930

LASTING MACHINES Filed March 25, 1965 4 Sheets-Sheet 1 I @(QIQPIYIQ A v [nveniors AdelberbWFockwelZ Jr John A. Meuse Albert E Newzon By zheir Attorney Aug. 30, 1966 A. w. ROCKWELL, JR., ETAL LASTING MACHINES 4 Sheets-Sheet 2 Filed March 25, 1965 Aug. 30, 1966 A. w. ROCKWELL, JR, ETAL 3,268,930

LASTING MACHINES Filed March 25, 1965 4 Sheets-Sheet :5

1966 A. w. ROC KWELL, JR. ETAL 3,268,930

LASTING MACHINES 4 Sheets-Sheet 4.

Filed March 25. 1965 United States Patent 0 3,268,936 LASTING MAtCHlNES Adelhert W. Rockwell, .lr., Gloucester, John A. Mouse,

Everett, and Albert E. Newton, Beverly, Mass, assignors to United Shoe Machinery Corporation, Boston, Mass, a corporation of New Jersey Filed Mar. 25, 1965, Ser. No. 442,749 a Claims. (Cl. l212.4)

This invention relates to improvements in machines for lasting shoes and is herein illustrated as embodied in a toe lasting machine of the type disclosed in US. Letters Patent No. 2,990,559 issued July 4, 1961 in the name of Andrew I. Gilbride. It will be understood, however, that in broader aspects the invention is not limited to embodiment in a toe lasting machine of the type disclosed in the mentioned patent or to the exact mechanical construction herein illustrated.

Toe lasting machines of the type here under consideration and particularly machines similar to that disclosed in the Gilbride patent, are especially adapted for, but not necessarily limited to, use in the lasting of the toe ends of shoes wherein the lasting margin of the upper is secured to the insole in lasted position thereon by means of an adhesive applied to the toe end of the insole and, in some instances, also to the inside surface of the adjacent lasting margin of the upper, during the toe lasting operation. More particularly, adhesive is applied after the upper materials have been shaped to the toe end of the last and just before the wipers are ope-rated to wipe the lasting margin inwardly over and to press it against the bottom of the shoe. It is a common practice to utilize for this purpose a so-called hand gun or similar device adapted to extrude a band of molten thermoplastic adhesive and to apply it to the marginal portion of the toe end of the insole. Various types of hand guns are available to the industry for this purpose such, for example, the hand gun disclosed and claimed in US. Letters Patent No. 3,004,688 issued October 17, 1961 in the name of John A. Duran.

While the foregoing procedure is quite widely followed in the trade and has proved to be generally satisfactory, there is a tendency for toe lasting machine operators to become somewhat careless in the use of the hand gun, or similar extruding device, with the result that the proper quantity of adhesive is not always applied so that either too little adhesive is extruded, in which case the lasting margin of the upper may not be adequately secured to the insole or, on the other hand, too much adhesive may be extruded with resulting waste of the adhesive, a fairly expensive commodity. Also, inasmuch as the operator is required to reach out with one hand and pick up the gun from a loading device, for example as explained in the Duran patent, bring it into proper position on the toe end of the shoe, use it to extrude the adhesive and then return it to the loading device, the whole toe lasting operation is slowed down more or less, depending on the dexterity and quickness of the operator. In any event, the over-all production of the operator is appreciably reduced, and in an attempt to correct this latter condition the operator may become less careful in his handling of the gun.

It is an object of this invention to provide an improvement in toe lasting machines whereby the aforementioned difficulties are overcome. To this end, and in accordance with features of the invention, the herein illustrated toe lasting machine which has a support for a shoe on its last, means for shaping the upper of a shoe to the toe end of its last and for securing the lasting margin of Patented August '30, 1966 the upper to the insole in lasting position, including wipers for wiping the lasting margin inwardly over and for pressing it against the bottom of the insole and means for effecting the operation of the upper shaping means including a manually operated member adapted to terminate the action of the upper shaping means, after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to wipe the lasting margin inwardly and to press it against the insole, is also provided with an adhesive applying device including a nozzle mounted for movement from a remote and inoperative position in which the toe end of the shoe being lasted is fully exposed and accessible by the operator during and after the upper shaping operation, to an operative position in which the nozzle is in engagement with the toe end of the insole of the shoe, together with the operator controlled means for effecting such movements of the adhesive applying device to operative position and for causing adhesive to be extruded through the nozzle and onto the toe end of the insole and means for effecting the return of the cement applying device to inoperative position during the subsequent operation of the wipers. More particularly, the cement applying device which is mounted on the wiper head for movement in directions extending generally lengthwise of the shoe being lasted comprises a body portion having a bore and a nozzle connected to the bore, means for heating the body portion and means for feeding the leading end. of a flexible rod of solid adhesive into the bore to cause a measured quantity of molten thermoplastic adhesive to be extruded through the nozzle in response to its movement from inoperaive position to operative position and the movement of the cement applying device is effected by fluid pressure actuated means under the control of a manually operable control member. Preferably means are also provided for slightly withdrawing the rod. of adhesive as the cement applying device is returned to its inoperative position.

Further to facilitate the operation of the lasting machine, and in accordance with still another feature of the invention, in the herein illustrated machine which is provided with power means for causing the wipers to Wipe the lasting margin of the upper over and to press it against the toe end of the insole, and the manually operable control member provided for effecting movement of the cement applying device is also arranged to set the power means for operating the wipers into operation.

The above and other objects and features of the invention will appear in the following detail description of the preferred embodiment which is illustrated in the accompanying drawings and will be pointed out in the claims.

In the drawings:

FIG. 1 is a view in perspective of a toe lasting machine embodying the features of this invention;

FIG. 2 is a view in side elevation and on an enlarged scale of a portion of the machine shown in FIG. 1;

FIG. 3 is a view in section substantially on line III- III of FIG. 2 and looking in the direction of the arrows;

FIGS. 4, 5 and 6 are step views of a shoe being operated on and the operating elements of the machine, with certain parts in vertical section and with these operating elements shown in different positions which they assume during the operation of the machine; and

FIG. 7 is a diagrammatic drawing of the fluid pressure operating system associated with the machine.

Referring to these drawings, there is illustrated in FIG. 1 a toe lasting machine of the type disclosed and described in detail in United States Letters Patent No. 2,- 990,559 which issued July 4, 1961 on an application filed in the name of Andrew I. Gilbride. Inasmuch as reference may be made to this patent for the exact details of the mechanical construction of this toe lasting machine, the disclosure and description herein will be limited to those parts of the prior machine necessary for an understanding of the present invention as applied to the machine of the Gilbride patent.

Thus the illustrated machine will be understood to include a main frame, indicated generally by the reference character 20, on which there is mounted for vertical movement a wiper head 22, provided with the usual toe Wipers 24, 24 and wiper operating mechanism not shown in detail but including a wiper operating rod 26, see FIG. 2 and FIG. 7 (which correspond to FIG. 11 of the Gilbride patent), together with a toe band 28 and toe band operating mechanism including a power cylinder 30. Associated with the main frame of the machine is a shoe supporting jack, indicated generally by the reference character 40, and including a jack post 42, toe rest 44, jack post operating cylinder 46, FIG. 7, and a heel abutment 48, FIG. 1. As in the machine of the Gilbride patent, control of the flow of fluid under pressure to and from the jack post cylinder 46, to clamp a shoe S against the toe rest 44 or to release it for renewal, is efiected by a manually operable off-on valve 50, FIG. 7 which conveniently may be operated by successive actuations of a knee lever 52, FIG. 1.

The operation of the machine is controlled by the operator by means of a hand lever 60 which is pivotally mounted on the machine frame and provided with an operating handle 62 and a control plunger 64 (these elements corresponding, respectively, to similar elements identified in the mentioned patent by reference characters 54, 56 and 202). Thus, after a shoe S, FIG. 1, has been clamped in operative position, in response to an actuation of the knee lever 52, the lasting operation may be initiated, controlled and terminated by suitable manipulation of the hand lever and control plunger 64, by means of the various fluid pressure operated motors, sequence valve, etc. included in the fluid pressure operating system and illustrated in FIG. 7 and which, except for certain additions to be described below, are exactly the same as those shown in FIG. 11 of the Gilbride patent to which reference may be made for a detailed description of the operation of the patented machine (see especially columns 6-9 of the Gilbride patent).

For the purposes of this invention, there is mounted on the wiper head 22 a cement applying device which is indicated generally by the reference character and which comprises a body portion 102 and a nozzle 104. The body portion 102 is secured to one end of a cylinder 106 by means of a bracket member 108, FIG. 2, and this cylinder, at its other end, is pivotally and slidably mounted, by means of two screw studs 1.10, 110 on a pair of

arms

112, 112, these studs extending outwardly through slots 1114 in the mentioned arms having downwardly turned end portions 116. These arms are secured to and extended forwardly from a block 1 18 which is pivotally mounted by means of trunnions in the upper end of a generally S-shaped bracket 12 2 having an inclined ledge 124 against which the arms are normally held by coil springs 126, this bracket :being secured to a portion of the wiper head.

Surrounding the cylinder 106 is a supporting member which is formed with a pair of upwardly extending

pants

132, 132, FIG. 3. Journaled in the lower portion of these parts is a shaft 134 to which there is secured a lower feed wheel 136 and on which there is rotatably mounted a pinion 138.

This pinion is recessed and located in this recess is a coil spring type of one-way clutch indicated generally by the reference character 139, arranged to drive the shaft 134 when rotated in a clockwise direction, FIG. 2, and

to slip freely thereover when rotated in the opposite direction. The upwardly extending

parts

132, 132 are each provided with a cylindrical bore 140, FIG. 3, in which there is slidably mounted a plunger 14?. and journaled in these plunger is a shaft 144 to which an upper feed Wheel 146 is secured. Coil springs 148, 148 interposed between these plungers and threaded adjusting

plugs

150, 150, yieldingly urge the upper feed wheel 146 into engagement with a flexible rod R of suitable adhesive of the cross sectional shape shown in FIG. 3. Adjustably secured to the block 118, by means of a clamp screw 152, and extending forwardly therefrom is a rack having teeth which are in mesh with the pinion 138 and adjustably secured by means of a clamp screw 163 to an upright 162, extending from the block 11 8, is a second and shorter rack 164 which is in mesh with the teeth of the upper feed wheel 146.

Contained within the cylinder 106 is a piston having a piston rod 172 which is secured to the block 118 by means of a threaded portion 174 and a locknut 176 (FIG. 2 and see also FIG. 7). When fluid under pressure is admitted to this cylinder on the right hand side of the piston, FIGS. 2 and 7, through a conduit 178, and exhausted from the opposite side through a conduit 180 through a pilot operated valve indicated generally by the reference character 182, in FIG. 7, the cylinder 106 together with the cement applying device 100 will be moved to the right, FIG. 2, from the retracted and inoperative position shown in FIG. 2 to an operative position illustrated in FIG. 4. During a major part of this movement, the body portion 102 and attached nozzle 104 will travel substantially along a straight line indicated in FIG. 2 by the reference characters XX, i.e., generally lengthwise of the shoe, until the parts reach a position indicated in broken lines in FIG. 4 whereupon the

studs

110, 110 enter the downwardly turned portions 116 of the slots 114 and the nozzle will move generally downwardly toward the bottom of the shoe until it comes into contact with the toe end of the insole I of the shoe, herein illustrated as comprising an upper U asembled on a last L together with the insole I, see FIG. 4. In this manner, the nozzle 104 is brought into its operating position without engagement with the lasting margin of the upper which is flared outwardly around the toe end of the last. Due to the camming action of the

studs

110, 110 on the portions 116 of the slots 114 during the latter stages of movement of the cylinder 106 after the nozzle 104 has contacted the insole, the

arms

112, 112 will be swung through a small angle about the

pivots

120, 120 so that the nozzle is then held yieldingly against the insole by the spring 126. Upon reversal of the position of the valve 182, the cementing device will be returned to the position shown in FIG. 2 by fluid under pressure acting on the left-hand side of the piston 170, FIGS. 2 and 7.

Referring to FIG. 7, the valve 182 is connected to a main pressure supply line 200 by means of a conduit 202 and has one of its pilots connected by a conduit 204 and a manually operable spring return ofif-on valve 206 to a conduit 208 (corresponding to the conduit 260 of the fluid pressure system disclosed in FIG. 11 of the Gilbride patent). The other pilot of the valve 182 is connected to the conduit 202 by means of the conduit 210 and a cam operated spring return valve 212. As shown in FIG. 7 the

valves

206 and 212 are normally spring returned to their off positions in which

conduits

204 and 210 are connected to exhaust and conduit 208 blocked.

With the arrangement so far described, the lasting machine is operated generally as in the case of the machine of the Gilbride patent up to that point in the toe lasting operation where the toe lasting adhesive is to be applied. Thus, the operator by suitable manipulation of the hand lever 60 by means of handle 62, and by actuation of the control plunger 64, FIGS. 1 and 7, will have effected the up-wiping operation, perhaps made a preliminary over-wipe, and probably retracted the wipers and if a loose lining were present will have trimmed out the lasting margin thereof, again up-wiped and brought the machine to a stop with the

wipers

24, 24 and the toe band 28 in the positions shown in FIG. 4. During the aforementioned operations, the cement applying device will have remained in its retracted position as shown in FIGS. 1 and 2, thus fully exposing the toe end of the shoe to the operator.

Now, while holding the wipers and the toe band in the position shown in FIG. 4, by means of the hand lever 60 and control plunger 64, with his left hand, the operator will reach over and actuate the valve 206 which is conveniently mounted on the wiper head as shown in FIG. 1, with his right hand. As a result of such actuation of the valve 206, which upon release will return to its oif position, pressure fluid will be admitted to the conduit 204 and valve 182 will be shifted from the position in which it is shown (i.e. with conduit 178 connected to exhaust and conduit 180 connected to pressure in conduit 202) to a position in which 178 is connected to pressure and 180 is connected to exhaust. The cylinder 106 together with the cement applying device 100 and now be moved to the right until the nozzle 104 comes into engagement with the toe end of the insole as shown in solid lines in FIG. 4. Because of the action of the inclined portions 16 of the slots 114, see FIG. 2, during the later stages of this movement of the cement applying device the nozzle 104 will move downwardly in a substantially vertical path thus avoiding interference with the outspread lasting margin of the upper U. In the latter connection, it will be noted that the views of FIGS. 4, 5 and 6 show the wiper head as tipped through a small angle in a counterclockwise direction from the position shown in FIG. 2.

During the initial portion of the movement of the cement applying device, the lower feed wheel 136 will be driven in a clockwise direction by the rack 160 while the upper feed wheel will be driven in a counterclockwise direction by the rack 164, FIG. 2, and as a result a predetermined length of the rod R of the thermoplastic adhesive will be fed into the body portion of the cement applying device which is provided with an elongated bore 220, and an inlet tube 222. As shown in FIG. 4, the elongated bore 220 at its right hand end is connected with a vertical passage 224 which leads to an internal recess 226 formed in the lower portion of the nozzle and from which a plurality of

discharge orifices

228, 228 extend outwardly as shown. The body portion 102 of the cement applying device is heated by means of electric heaters indicated by reference character 230 and these heaters are connected to a suitable source of electrical energy by wires, not shown. Thus, as the leading end of the rod of adhesive R is fed along the bore 220 it is melted and molten adhesive is extruded through the orifices 228. However, since movement of the cement applying device takes place quite quickly, before the adhesive actually begins to extrude from the orifices 228 of the nozzle, the nozzle will have already reached its operating position as shown in FIG. 4.

The operator now will efiect the over-wiping operation by suitable movement of the handle 60 thus causing the

wipers

24, 24 to advance and close. As this occurs, the nozzle 114 will be lifted, by the wedging action of the wipers as illustrated in FIG. 5, the nozzle at this time serving also as a distributor or snubber for facilitating the lasting operation. As is diagrammatically illustrated in FIG. 2 and see also FIG. 7, there is adjustably associated with the wiper operating rod 26 a cam 231 which, at a predetermined point in the travel of this rod as the wipers are being advanced and closed, engages the operating plunger 232 of the above-mentioned valve 212 and shifts this valve to a position in which pressure fluid is connected to the conduit 210. Valve 182 will now be returned to its original position so that the conduit 180 is connected to the conduit 202 (pressure supply) while the conduit 178 is connected to exhaust and the cylinder 106 will now be moved to the left to carry the cement applying device back to its retracted and inoperative position as shown in FIG. 2. The operator now continues the advancing and closing movement of the wipers and then causes them to apply bedding down pressure thus to complete the lasting operation as shown in FIG. 6 and in the manner to be described below.

As the cement applying device is being retracted and just before it completes its movement to the left (FIG. 2), the feed wheel 14-15 will be rotated reversely, by the action of rack 164, and the rod R will thus be withdrawn somewhat from the bore 220 in the body portion of the cement applying device thereby creating a slight suction at the discharge orifices in the nozzle and avoid drooling of molten adhesive therefrom. However, inasmuch as the inlet tube 222 remains relatively cool, the solid rod R of adhesive does not begin to melt until it is about half way along the bore 220 and when the solid rod is withdrawn as just described, its solid and unmelted end does not leave the inlet bushing. By suitable adjustment of the rack 164, the amount the rod is retracted can be varied as desired. The length of the rack is selected so as to provide for the extrusion of the desired amount of molten adhesive and this also can be varied], within limits, by lengthwise adjustment of this rack.

After the upper has been shaped to the last and the toe lasting adhesive has been applied to the toe end of the insole, in the manner explained above and by means of the cement applying device 100, all that remains to be done to complete the lasting operation is to cause the

wipers

24, 24 first to advance and close, by aforward movement of the hand lever 60, and then to cause them to apply bedding pressure by means of the control plunger 64. Also, if desired, the bedding down pressure may be continued, without the attention of the operator, by means of a manually operable ofi-on valve 300, FIG. 7, conveniently mounted on hand lever 60, FIG. 1 (this valve corresponding to the valve 422 in FIGS. 1 and 11 of the Gilbride patent), which applies line pressure to the bedding down cylinder 302, in a manner explained in detail in the Gilbride patent. For the further purposes of this invention these actions may be effected automatically in response to the actuation of the valve 206.

By reference to the above-mentioned Gilbride patent, it will be readily understood that the initial inward movement of the plunger 64 by the operator activated the power operated servo mechanism of the machine for advancing and closing the wipers under the direct control of the hand lever 60, this mechanism including a lever 304 which is directly connected to a bleed valve 305 (these parts corresponding to the lever 160 and valve 78 appearing in FIG. 11 of the Gilbride et al patent) and also closed a switch 307 (corresponding to the switch 232, FIGS. 4 and 11 of the Gilbride patent). Accordingly, there is provided, as is diagrammatically illustrated in FIG. 7, a piston 306 contained within a cylinder 308 having a rod 310 adapted to engage the lower end of the lever 304. This cylinder is connected by means of a conduit 312 to a conduit 314 leading from a pilot operated valve 316, which is connected to the pressure line 202. This valve is normally in the position shown so that the

conduits

312 and 314 are connected to exhaust while conduit 202 is blocked. a The left-hand pilot of this valve is connected by a conduit 320, a sequence valve 322 and a manually operable olf-on valve 324 to the conduit 178, previously referred to. When the valve 324 is in the OE position shown, the flow of pressure fluid through the conduit 320 is blocked.

However, when this valve is shifted to its 'on position, upon the admission of pressure fluid to the conduit 178 and after the cement applying device has been moved to its operative position, as a result of the shifting of the valve 206 by the operator, pressure will build up in the conduit 178 until the sequence valve 322 opens. The valve 316 will now be shifted to a position to connect the

conduits

312 and 314 to the pressure line 292. As a result, the piston 306 will be moved to the left thus swinging the lever 304 in a clockwise direction. Such movement of this lever will cause the

wipers

24, 24 to be advanced and closed by means of a fluid pressure actuator 328 (corresponding to the actuator N2 in FIG. 11 of the Gilbride patent). Pressure fluid will also flow through the conduit 314, a flow restrictor 330 and a double check valve 332 to a conduit 334 (corresponding to the conduit 38% in FIG. 11 of the Gilbride patent). Accordingly, after having shifted the valve 2ti6, as soon as the wipers begin to advance and close the operator may let go of the handle 62 and the control plunger 64 and the wipers will continue to be advanced and closed automatically by the actuator 328 as a result of the bleed valve 305 being held open by the action of the piston 306 on the lever 304. Also, bedding down pressure will be applied by the bedding down actuator 362 (corresponding to the actuator 372 of the Gilbride patent) as a result of the admission of pressure fluid from conduit 314 through check valve 332 to the conduit 334, which leads from the main sup ly line 2% to the bedding down actuator 302.

Leading downwardly from the conduit 312 is a conduit 340 which is connected to a pressure switch 342 and also to a conventional time delay device indicated by the reference character 344. The presssure switch 342 is arrange to operate in parallel with the switch 307, referred to above, so that upward movement of the wiper head is still prevented after the control plunger 64 has been released. Following the lapse of a predetermined time interval after pressure has built up in the conduit 340 the timing device 344 will be actuated and pressure fluid will be admitted to a conduit 346 leading to the other pilot of the valve 316. This valve will now be returned to the position in which it is shown thus connecting the

conduits

312 and 314 to exhaust. Bedding down pressure is now relieved, and pressure switch 342 is opened so that the wiper operating hand lever 60 is returned to its original position by a spring in a manner explained in detail in the Gilbride patent and the wipers are retracted and opened. The knee lever 52 is now actuated to release the shoe which is removed from the machine.

Having described the invention, what is claimed and desired to secure by Letters Patent of the United States is:

1. In a machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a shoe on the support to the toe end of its last and forsecuring the lasting margin of the upper to the insole in lasted position including wipers for wiping the lasting margin of the upper inwardly over and for pressing the lasting margin against the bottom of the insole, and means for effecting the operation of said upper shaping means including a manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to thettoe end of the last and thereafter to cause the wipers to be operated to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device for movement from a remote in operative position in which the toe end of the shoe is fully exposed and accessible by an operator during and after the upper shaping operation, to an operative position in which the nozzle is in engagement with the toe end of the insole of the shoe, and an operator controlled power means operable to effect movement of the adhesive applying device to operative position and to cause adhesive to be extruded through the nozzle onto the toe end of the insole prior to the operation of the wipers by said manually operable member.

2. In a machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a shoe on the support to the toe end of its last and for securing the lasting margin of the upper to the insole in lasted position including wipers for wiping the lasting margin of the upper inwardly over and for pressing the lasting margin against the bottom of the insole, and means for effecting the operation of said upper shaping means including a manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to be operated to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device for movement from a remote inoperative position in which the toe end of the shoe is fully exposed and accessible by an operator during and after the upper shaping operation, to an operative position in which the nozzle is in engagement with the toe end of the insole of the shoe, operator controlled power means operable to effect movement of the cement applying device to operative position and to cause adhesive to be extruded through the nozzle and onto the toe end of the insole prior to the operation of the wipers by said manually operable member, and means operable to effect the return of said cement applying device by said power means to inoperative position during the subsequent operation of the wipers.

3. In a machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a'shoe on the support to the toe end of its last and for securing the lasting margin of the upper to the insole in lasted position including wipers for wiping the lasting margin of the upper inwardly over and for pressing the lasting margin against the bottom of the insole, a wiper head with which said upper shaping means and said wipers are associated, and means for effecting the operation of said upper shaping means including a manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device on said wiper head for movement in a direction extending generally lengthwise of the shoe from a remote inoperative position in which the toe end of the shoe is fully exposed and accessible by an operator, during and after the upper shaping operation, to an operative position in which the nozzle is in engagement with the toe end of the insole of the shoe, and operator controlled fluid pressure actuated means operable to effect movement of the adhesive applying device to operative position and to cause adhesive to be extruded through the nozzle and onto the toe end of the insole of the shoe, prior to the operation of the wipers by said manually operable member.

4. In a machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a shoe on the sup port to the toe end of its last and for securing the lasting margin of the upper to the insole in lasted position including wipers for wiping the lasting margin of the upper inwardly over and for pressing the lasting margin against the bottom of the insole, a wiper head with which said upper shaping means and said wipers are associated, and means for effecting the operation of said upper shaping means including a manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device on said wiper head for movement in a direction extending generally lengthwise of the shoe from a remote inoperative position in which the toe end of the shoe is fully exposed and accessible 9 by an operator, during and after the upper shaping operation, to an operative position in which the nozzle is in engagement with the toe end of the insole of the shoe, operator controlled fluid pressure actuated means operable to effect movement of the adhesive applying device to operative position and to cause adhesive to be extruded through the nozzle and onto the toe end of the insole of the shoe, prior to theioperation of the wipers by said manually operable member, and means operable to effect the return of said adhesive applying device to inoperative position by said fluid pressure actuated means during the subsequent operation of the wipers.

5. In a machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a shoe on the support to the toe end of its last and for securing the lasting margin of the upper to the insole in lasted position including wipers for wiping the lasting margin of the upper inwardly over and for pressing the lasting margin against the bottom of the insole, and means for effecting the operation of said upper shaping means including a manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to be operated to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device for movement from a remote inoperative position in which the toe end of a shoe is fully exposed and accessible by an operator, during and after the upper shaping operation, to an inoperative position in which the nozzle is in engagement with the toe end of the insole, said adhesive applying device comprising a body portion having a bore therein connected to said nozzle, means for heating said body portion, and means for feeding the leading end of a solid rod of adhesive into said bore so that it is melted and extruded through the nozzle in response to movement of the device to operative position, and operator controlled power means operable to effect movement of the cement applying device to operative position to cause adhesive to be extruded through the nozzle and onto the toe end of the insole prior to the operation of the wipers by said manually operable member.

6. In a machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a shoe on the support to the toe end of its last and for securing the lasting margin of the upper to the insole in lasted position including wipers for wiping the lasting margin of the upper inwardly over and for pressing the lasting margin against the bottom of the insole, and means for effecting the operation of said upper shaping means including a manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to be operated to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device for movement from a remote inoperative position in which the toe end of a shoe is fully exposed and accessible by an operator, during and after the upper shaping operation, to an inoperative position in which the nozzle is in engagement with the toe end of the insole, said adhesive applying device comprising a body portion having a bore therein connected to said nozzle, means for heating said body portion, and means for feeding the leading end of a solid nod of adhesive into said bore so that it is melted and extruded through the nozzle in response to movement of the device to operative position, operator controlled power means operable to effect movement of the cement applying device to operative position to cause adhesive to be extruded through the nozzle and onto the toe end of the insole prior to the operation of the wipers by said manually operable member, means operable to effect the return of said adhesive applying device to inoperatve position by said power means during the subsequent operation of the wipers, and means associated with said rod feeding means for partially withdrawing the rod from said bore as the device is returned.

7. A machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a shoe on the support to the toe end of its last and for securing the lasting margin of the upper to the insole in lasted position including wipers for wiping the lasting margin of .the upper inwardly over and for pressing the lasting margin against the bottom of the insole, means for effecting the operation of said upper shaping means including a first manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device for movement from a remote inoperative position in which the toe end of the shoe is fully exposed and accessible by an operator, during and after the upper shaping operation, to an operative position in which the nozzle is in engagement with the toe end of the insole of the shoe, power means operable to effect movement of the adhesive applying device to operative position and to cause adhesive to be extruded through the nozzle and onto the toe end of the insole prior to the operation of the wipers by said manually operable member, means operable to effect the return of said adhesive applying device to inoperative position during the subsequent operation of the wipers by said manually operable member, power means for causing the wipers to wipe the lasting margin of the upper inwardly over and to press it against the toe end of the insole, and a second manually operable member for setting said two power means into operation.

8. A machine for lasting shoes having a support for a shoe including an upper and an insole assembled on a last, means for shaping the upper of a shoe on the support to the toe end of its last and for securing the lasting margin of the upper to the insole in lasted. position including wipers for wiping the lasting margin of the upper inwardly over and for pressing the lasting margin against the bottom of the insole, means for effecting the operation of said upper shaping means including a first manually operable member adapted to terminate the action of the upper shaping means after the upper has been shaped to the toe end of the last and thereafter to cause the wipers to wipe the lasting margin inwardly over and to press it against the insole, an adhesive applying device including a nozzle, means mounting said adhesive applying device for movement from a remote inoperative position in which the toe end of the shoe is fully exposed and accessible by an operator, during and after the upper shaping operation, to an operative position in which the nozzle is in engagement with the toe end of the insole of the shoe, fluid pressure means operable to effect movement of the adhesive applying device to operative position and to cause adhesive to be extruded through the nozzle and onto the toe end of the insole, prior to the operation of the Wipers by said manually operable member, and means operable to effect the return of said cement applying device to inoperative position during the subsequent operation of the wipers by said manually operable member, fluid pressure means for causing the wipers to wipe the lasting margin of the upper inwardly over and to press the lasting margin against the toe end of the insole, and a second manually operable member for setting said two fiuid pressure means into operation.

(References on following page) References Cited by the Examiner UNITED STATES PATENTS Engel 127.1 Jorgensen 118-12 5 Kamborian 118-301 Jorgensen 12-7.1 X Kamborian 12145 12 Gilbride 1212.4 Dunlap et a1. 127.1 X Vicek et a1. 12-12.4 Weinschenk 12145 X Gilbride 12-8.8

JORDAN FRANKLIN, Primary Examiner.

PATRICK D. LAWSON, Examiner.

Claims

1. IN A MACHINE FOR LASTING SHOES HAVING A SUPPORT FOR A SHOE INCLUDING AN UPPER AND AN INSOLE ASSEMBLED ON A LAST, MEANS FOR SHAPING THE UPPER OF A SHOE ON THE SUPPORT TO THE TOE END OF ITS LAST AND FOR SECURING THE LASTING MARGIN OF THE UPPER TO THE INSOLE IN LASTED POSITION INCLUDING WIPERS FOR WIPING THE LASTING MARGIN OF THE UPPER INWARDLY OVER AND FOR PRESSING THE LASTING MARGIN AGAINST THE BOTTOM OF THE INSOLE, AND MEANS FOR EFFECTING THE OPERATION OF SAID UPPER SHAPING MEANS INCLUDING A MANUALLY OPERABLE MEMBER ADAPTED TO TERMINATE THE ACTION OF THE UPPER SHAPING MEANS AFTER THE UPPER HAS BEEN SHAPED TO THE TOE END OF THE LAST AND THEREAFTER TO CAUSE THE WIPERS TO BE OPERATED TO WIPE THE LASTING MARGIN INWARDLY OVER AND TO PRESS IT AGAINST THE INSOLE, AN ADHESIVE APPLYING DEVICE INCLUDING A NOZZLE, MEANS MOUNTING SAID ADHESIVE APPLYING DEVICE FOR MOVEMENT FOR A REMOTE IN OPERATIVE POSITION IN WHICH THE TOE END OF THE SHOE IS FULLY EXPOSED AND ACCESSIBLE BY AN OPERATOR DURING AND AFTER THE UPPER SHAPING OPERATION, TO AN OPERATIVE POSITON IN WHICH THE NOZZLE IS IN ENGAGEMENT WITH THE TOE END OF THE INSOLE OF THE SHOE, AND AN OPERATOR CONTROLLED POWER MEANS OPERABLE TO EFFECT MOVEMENT OF THE ADHESIVE TO BE EXTRUDED THROUGH THE NOZZLE ONTO THE CAUSE ADHESIVE TO BE EXTRUDED THROUGH THE NOZZLE ONTO THE TOE END OF THE INSOLE PRIOR TO THE OPERATION OF THE WIPERS BY SAID MANUALLY OPERABLE MEMBER.