GB2364884A

GB2364884A - Shoe with device for tightening and loosening laces

Info

Publication number: GB2364884A
Application number: GB0118104A
Authority: GB
Inventors: Lung-Chiao Chou
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-28
Filing date: 2001-07-25
Publication date: 2002-02-13
Anticipated expiration: 2021-07-25
Also published as: GB0118104D0; GB2364884B; FR2812175B3; DE20112330U1; FR2812175A3

Abstract

A shoe 1 comprises a device adapted to tighten and loosen lacing, the device comprising a toggle element 53 located in an operating slot 181, the toggle element including front and rear lever arms 531, 532 pivotally connected together. The front lever arm is engagable with a slidable shuttle element 52 and the rear lever arm is pivotally connected at the back of the operating slot. The lacing 3 is threaded onto the shuttle element and is fixed to a lug pin 183 at the back of the operating slot. In use, the toggle element may be compressed so as to cause the front and rear lever arms to pivot away from each other, thereby forcing the shuttle element to slide forwards to tighten the lacing.

Description

2364884 AN AUTOMATIC TIE FASTENING AND LOOSING SHOE

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a shoe, and more particularly to an automatic tie fastening and loosing shoe.

2. Description of Prior Art

Shoe is an indispensable product for protecting and decorating human feet in the modem life. In regard of the construction and convenience in putting on or off, the conventional shoes are kept into tie shoes, casual and buckle shoes and so on. So far,, an automatic tie fastening and loosing shoe comes out in the China patent No: 97106505.0 (USA patent No: 5,983,530) invented by this invention applicator, but after studying the construction of the automatic tie fastening and loosing shoe provided in above-mentioned patent document, we can find that because the moving distance of tie fastening process is direct ratio with the vertical moving distance of the pressure plate coordinating to the action of putting on, if reaching the tied-up position, a quite long distance of the moving pressure plate is needed, so that the pressure plate is stuck up highly at the inside of the shoes in order to meet the necessary moving distance of tie fastening process, therefore it not only affects the whole apparel of the shoes, but also make the wearer have to tiptoe for pressing down with heel and lacing up as putting on the shoes so as to feel inconvenient and uncomfortable.

Additionally, as manufacturing, all the mechanisms and the 25 components such as tie fastening assembly, the movable action adjustment, 1 pressure plate and control mechanism and so on have to be pre-mounted into the middle sole of shoes individually, and the shoe upper including the ties are stitched into the middle sole. then attach the sole on said middle sole together tightly. But in shoe manufacturing industry, the procedure of stitching the middle sole on the sole is difficult, because the quality of it will affect the quality of shoe, so this middle sole is attached with so exposed many mechanisms and components at inside individually, additional the ties pin the sole against the upper so that the procedure of stitching the upper on the sole is became more difficult, and unable to employ machine to improve production scale, hence all the stitching procedure has to be carried out by manual operation so that reject rate is relative high, and the production cost is very high too.

2 OBJECTS AND SUMMARY OF THE INVENTION

It is therefore a main object of the present invention to provide an automatic tie fastening and loosing shoe, which is processed easily, able to be manufactured in industrial scale within quite low reject rate and lower production cost.

It is another object of the present invention to provide an automatic tie fastening and loosing shoe having a thinner pressing down space.

The next object of the present invention is to make the wearer adjust tightness of the lace easily and conveniently, and to reduce the friction lo coefficient, and further to improve the service life of the shoes.

These objects are achieved by an automatic tie fastening and loosing shoe comprised of a shoe body and at least one lace, the key feather of the present invention is to also comprise a tie fastening assembly, an action adjustment, a pressure plate, a control mechanism.

Said lace is controlled by a tightness adjustment for self-adaptation, wherein:

In said shoe body, the upper has one or more sandwich traction channels on the side cooperating to the eyelets, and a sandwich held in by the sole and the insole; said sandwich has an operation slot; said tie fastening assembly includes a lace strip having a row of lace holes at side wall coordinating to the number of the eyelets, and is located on the one side of said operation slot opposite said sandwich traction channels sequentially; said action adjustment includes a toggle plate constructed by two lever arms-front and back in toggle joint located at the inside of said operation slot; the back end of said back lever arm is pivoted on the back side of said operation slot; said front lever arm has a catching rod formed at the front end for latching on a snap groove of a puller; said puller and 3 the said operation slot at least are attached with a pair of rotatable pulleys separately at the back end of said puller and back side of said operation slot; at least one lace stretches into said operation slot of said sandwich via said traction channels and are stranded into one strand after passing through said lace holes of said strip, then is led through the back end and the pulley located on the back end of said puller, finally is fixed on a lug pin at the back end of said operation slot; said pressure plate is hung on at the front end of said operation slot with the front end, and is set upon a plug at the back end behind the touching range with said toggle plate, coordinating to said plug on said pressure plate, said sandwich has a through-hole; passing through said through-hole on said sandwich, said plug is connected to said control mechanism; said control mechanism is located on the heels of said sandwich and said sole coordinating to said plug, and contained in a control slot on the heel of said sole, at the back side of said control slot there is a through-hole backward for extending out a control button.

All said objects could be archived in following way:

Said sandwich has a processing groove at the bottom side; the tiefastening assembly includes two coordinating lace strips located on the opposite inner sides of said processing groove separately in a certain space; the action adjustment includes a shuttle with a long guide slot crossing the both sides so that said shuttle can take sliding motion in the space between said both lace strips; a traction rope ties on said guide slot with one end, and passes through a guide-way, processing space and a through-hole at the back end of said processing groove sequentially to stretch into the operating slot, then threads said pulley at the back end of said puller roundly, finally fastens on said plug pin at the back end of said operating slot; within the length of said traction rope is about two times than the sum 4 of the length of unfold toggle plate add the length of said guide-way; at least one lace stretches to said processing groove via said traction channel from said eyelet of said upper, and threads the first lace strip, said shuttle in said processing groove and fastenmig on the another lace strip sequentially.

Said action adjustment also includes an elastic component being a torsionbar spring putting on said pivoting pin at the back end of said back lever arm, thereffi one end touches against the bottom of said operating slot, the another end against said back lever arm..

The back end of said puller and the backside of said processing groove are installed with a sliding component individually, said sliding component is a spindle or a pulley and so on.

The pivoting joint of said firont and back lever arms is attached with a sliding component on the both ends of pivoting pin separately, and a pair of sliding components is mounted on the both end of said catching head separately too.

Said control mechanism includes a button and a cramp, and a control box with a sliding slot within connected by said control button via a pin, and a spring to press elastically said button backward touching against said through-hole at the back side of said control slot to keep in touch with a waterproof button located in said through-hole by gluing.

Said control mechanism is located in the heel portion of sandwich coordinating to said plug, and comprised of a curved cramp coordinating to the shape of the heel, a pin and a control spring, therein said cramp is hung on the sandwich via a pin at the middle portion; said cramp has a sector latch end for latching said plug, and a lug at another end for locating one end of a control spring, opposite said lug, another end of said control spring is fastened on said sandwich; a spring is located on the upside of said sandwich coordinating to said pressure plate.

Said puller is a pulley base thereon attaching a pulley.

Said toggle plate of said action adjustment can has three-lever arms; said shuttle of said action adjustment is attached with pulley; a pulley is mounted on the heel of sandwich.

Said action adjustment is a hasp, thereby to fasten one end of said lace, and via said hasp to connect on the inside wall of said upper.

Due to adopting above-mentioned construction, in manufacturing, io firstly combine said tie-fastening assembly, said slideable action adjustment and pressure plate and so on into said sandwich, and stitching said upper attaching with laces on the middle sole, then fasten said sandwich between lower of said insole and upper of said middle sole, meanwhile said lace is threaded into relative mechanism and is fastened on said sandwich,, next locate said control mechanism on said sandwich and the heel of said sole, finally retain said control mechanism in said coordinating control slot on said sole, and fasten said sole and said middle sole together tightly.

In this way, because said tie-fastening assembly, action adjustment and said pressure plate are mounted into said sandwich and hid into the inside of said upper, and said control mechanism is located under said middle sole, so said control mechanism may not affect to the fastening process of said sole and said middle sole without any diversion between of them so that all the fastening process of said sole and said middle sole is as easy as processing with a common shoes, ffirther to adopt industrial big scale production, and to make manufacturing easily and to reduce reject rate and to decrease the production cost; said control mechanism of the present invention can be located on the heel of said sandwich without 6 setting control slot on said middle sole and said sole, therefore it can reduce the thinness of the sole for meeting the sole enhancive elastic necessary of sport shoes; due to pulleys installed on said shuttle, said puller is attached with a pulley and a pulley is installed on said guideway, s so as to replace the direct sliding friction between said lace and said shuttle, said puller and said guide-way into the rotating friction, further to improve the friction effect as fastening or releasing motion, hence the friction coefficient is reduced greatly, meanwhile the service life of said lace is extended too; additional, said lace can be attached on said upper via a hasp so as to make the wearer can adjust the tightness in great flexibility.

7 BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is an exploded view showing the first embodiment of the present invention.

Fig. 2 is a part sectional side view showing the idle state of the first embodiment of the present invention.

Fig. 3 is a part sectional side view showing the wearing state of the first embodiment of the present invention.

Fig. 4 is a part sectional topside view of Fig. 3.

Fig. 5 is a part sectional side view showing the loosing state of the first embodiment of the present invention.

Fig. 6 is an exploded view showing the second embodiment of the present invention.

Fig. 7 is a part sectional side view showing the idle state of the second embodiment of the present invention.

Fig. 8 is a part sectional side view showing the wearing state of the second embodiment of the present invention.

Fig. 9 is a sectional topside view of Fig. 8.

Fig. 10 is a sectional bottom side view of Fig. 8.

Fig. 11 is an exploded view showing another embodiment of the control mechanism of the present invention.

Fig. 12 is a solid view showing the combined control mechanism in another embodiment of the present invention (1).

Fig. 13 is a solid view showing the combined control mechanism in another embodiment of the present invention (2).

Fig. 14 is a solid view showing the action of another embodiment of the present invention.

Fig. 15 is a topside view of Fig. 14.

8 Fig. 16 is a part sectional side view showing the adjustment of the present invention.

Fig. 17 is a solid view showing the action adjustment in another embodiment of the present invention.

9 DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

First. the first embodiment is a baby shoes.

Referring to Fig. 1 and Fig. 2, the present invention is comprised of a shoe body 1, a lace 3, a tie-fastening assembly 4, an action adjustment 5, a pressure plate 6, a control mechanism 7, and an elastic component 8.

Said shoe body 1 includes an upper 12 with a sandwich traction channel 14 cooperating to eyelets 13, a sandwich 18 between the lower of a insole 17 and the upper of a middle sole 16; said sandwich 18 has an operating slot 181.

Said lace 3 is fixed on a eyelet 13' with one end, the another end is led into said traction channel 14 in said upper 12 via a eyelet 13 to stretch into said operating slot 181 of said sandwich 18 (in this embodiment, said baby shoes just has only one lace 3 to connect with following mechanism for the fastening or loosing ftmctions, the others 3 are bungee just used for decorating, so just only one lace 3 stretches into said operating slot 181) passing through a lace hole 411 of a lace strip 4 1, then it threads through sliding components 182 522 at the back side of said operating slot 181 and the back end of a puller 52 sequentially, finally tied on a lug pin 183 at the back side of said operating slot 181. For artistry, parallel said lace 3 threading between eyelets 13 and 13' a decorating lace segment 30 is attached on. It should be stressed in here that if regarding to an adult shoes, there will be several laces 3 stretching into said operating slot 181 simultaneously, and then said laces 3 are stranded into one strand, next threads said sliding components 182 522 to tie on the lug pin 183.

Said tie-fastening assembly 4 includes a lace strip 41 with a through lace hole 411 at the side wall (if regarding to an adult shoes, said lace strip 41 should has a row of lace holes 411 coordinating to the number of 1 0 eyelets 13), and said lace strip 41 is located on inner side of said operating slot 181 of said sandwich 18.

Said action adjustment 5 includes a toggle plate 53 located in the inside of said operating slot 181 of said sandwich 18, and is comprised of two lever arms ---- front lever arm 531 and back lever arm 532 connected in pivoting joint, in which said pivoting pin is attached with two sliding components (such as pulleys) at the both tip ends separately for reducing the friction force as said pressure plate 6 moving down. Wherein said back lever arm 532 is pivoted on the back side of said operating slot 181, and a torsion-bar spring 8 is put on said pivot pin so that one end of said torsion bar spring 8 touches against the bottom of said operating slot 181, and another end against said back lever arm 532, in order to raise up said toggle plate 53 and keep in a certain height as no pressure force acting on said pressure plate 6 for the convenience of loosing lace 3 as taking off the is shoes. Said front lever arm 531 has a catching rod 533 formed at the front end for latching on a snap groove 521 of a puller 52, thereby to adjust the tightness of said lace according to different sizes of foot for variety wearers. Said catching rod 533 is attached with two sliding components (such as pulleys) at the both tip ends separately for reducing the friction force as pressing down said pressure plate 6 to unfold said toggle plate 53.

Said puller 52 and said backside of said operating slot 181 are mounted on coordinating number of sliding component 522 182 separately on the opposite places, in this embodiment, a pulley is set upon each side as an instance for explanation, increasing the number of the sliding components 2s 522 182 can increase the dilatation range of said lace 3 for the convenience of taking on or off the shoes.

Said pressure plate 6 is hung on the front side of said operating slot 181 with the front end. and attached with a plug 61 approaching the back 1 1 end behind the touching range with said toggle plate 53, coordinating to said plug 61 on said pressure plate 6, said sandwich 18 and said middle sole 16 have a through-hole separately for passing through said through hole said plug 61 to connect to said control mechanism 7. Said plug 61 has a latching head 611 with a catching shoulder 612 at the backside so that said latching head 611 stretches into said control mechanism 7 located in said sandwich 18 and under said middle sole 16 through the through-hole for the locking control as said pressure plate 6 is pressed down in level state. so that the laces 3 are kept in tight state as the pressure plate 6 kept in level state, and it can be released by pressing the button 71 of said control mechanism 7 to loose the lace as taking off the shoes.

Said control mechanism 7 is secured in said sandwich 18 and the bottom of said middle sole by secures, and contained in a control slot 111 formed at the heel portion of said sole 11. Said control mechanism 7 includes a control box 73, a button 71 and a cramp 72 combined into said control box 73. Said button 71 is hung on a pin 711, and said pin 711 is fit into a pair of sliding slots 731 of said control box 73 in sliding fitting with the both pin tip ends so that said button 71 can slide in said control box 73, and by cooperating with a spring 83 said button 71 is pressed backward so as to press on a through-hole 112 drilled on the backside wall of said control slot 111 to touch against a waterproof button 113 retained in said through-hole 112 by gluing, so that wearer can touch with said button 71 in order to trigger said control mechanism 7 to work. Said button 71 has a clipping hole 711 coordinating to said plug 61 for retaining a cramp 72 at the inside so as to latch on said catching shoulder 612 of said latching head 611 as said pressure plate 6 is pressed down to reach the lever of the top surface of said sandwich 18, as shown in Fig. 6.

Referring to Fig. 2 to Fig. 5, the embodiment is in using.

1 2 When the shoes is not taken on, said toggle plate 53 is raised up by said torsion-bar spring 8 to appeal V-upside down so that said pressure plate 6 is lifted out by said toggle plate 53, meanwhile said puller 52 dose not draw said laces 3 any more, as shown in Fig. 2.

When the wearer is trying to take on the shoes, just need put the foot into the inside of the shoes through the opening as taking on a conventional shoes, use the heel of the foot to press down said pressure plate 6 until the pressure plate 6 is pressed in level, meanwhile the raised toggle plate 53 is getting to be extended downward (as shown in Fig. 3), io further to draw the lace 3 to the backward of said operating slot 181 of said sandwich 18 via said puller 52 to reduce the inside space of the shoes to shrink the upper to the foot until said toggle plate is unfolded into a flat (as shown in Fig. 3), and the lace 3 is tied in a proper tightness to cover the foot, in this time, said latching head 611 of said plug 61 located on the is bottom side of said pressure plate 6 is plugged into said clipping hole 711 of said control mechanism 7 so that the cramp 72 just latches on said catching shoulder 612 to lock said pressure plate 6 by said control mechanism 7 during the shoes is taken on and walking without lifting up or any affect to wearing, in this time said torsion-bar spring 8 is pressed to save restoring energy.

When trying to take off the shoes, the wearerjust presses down said waterproof button 113 (as shown in Fig. 5) to trigger said control mechanism 7 to make the button 71 move to inward so as to bring to said cramp 72 withdrawing inward to release the locked plug 61, in this time the foot can raise up and draw out from the opening of the shoes, meanwhile said torsion-bar spring 8 raises up said toggle plate 53 with the restoring energy to the original state to lift up said pressure plate 6, and said puller 52 loses the forward traction force to resume the original state 1 3 to loose the lace 3, hence under the withdrawing foot force, the upper 12 is spread out so that the lace 3 is drew out from the inside of the shoe body 1, as shown in Fig. 7, to get the goal of loosing lace 3 automatically as taking offshoes.

Next, in the second embodiment of the present invention, an adult shoes is shown in Fig. 6 and Fig. 7, cooperating to Fig. 1 showing followings:

Besides an operating slot 181 at the topside, the sandwich 18 of the shoe body 1 also has a processing groove 184 formed at bottom side.

The laces 3 are fixed on a eyelet 13' with one end individually, the another end is led into said traction channel 14 in said upper 12 via a eyelet 13 to stretch into said processing groove 184, and threaded through the lace holes 411 of a lace strip 41 following the sequence, and the long guide slot 511 of a shuttle 5 1, finally to be tied on the lace holes of another lace strip 42 sequentially, thereby sliding inward to draw the laces tightly or sliding outward to loose the laces 3 for carrying out automatic tie fastening and loosing ftinction.

The tie-fastening assembly 4 includes two coordinating and paralleling lace strips 41 42 located on the opposite inner sides of said processing groove 184 separately in a certain space; coordinating to the number of said eyelets a row of the lace holes 411 421 are set upon the opposite walls individually for threading said laces 3.

Besides a toggle plate 53 (which is as same as above-described in the first embodiment so that it will be described again), the action adjustment 5 also includes a shuttle 51 with a long guide slot 511 crossing the both sides so that said shuttle 51 can take sliding motion in the space between said both lace strips 4142; a traction rope 54 is tied on said guide slot with one end, and another end is threaded through a guide-way 55 1 4 (which is a guide pipe in this embodiment) of said processing space 184 and a through-hole 185 at the back end of said processing groove 184 sequentially to stretch into the operating slot 181, then threaded on sliding components 522 at the back end of said puller 52 roundly, finally fastens on said plug pin 183 at the back end of said operating slot 181; within the length of said traction rope 54 is about two times than the sum of the length of unfold toggle plate 53 add the length of said guide-way 55; It should be stressed in here that as same as the first embodiment, said puller 52 and said backside of said operating slot 181 are mounted on coordinating number of sliding components 522 182 separately on the opposite places, so that said traction rope 54 stretching into said operating slot 181 from said processing groove 184 is threaded on the sliding components 522 at the back end of said puller 52, and the components 182 at the back side of said operating slot 181 sequentially; increasing the number of the sliding components 522 182 can increase the dilatation range of said lace 3 for the convenience of taking on or off the shoes.

In this embodiment, the pressure plate 6 and the control mechanism 7 are as same as them in the first embodiment, so they will be not described in here.

For the convenience of combination, combining some parts that are not easy to be installed on said sandwich 18 directly into a plug-in assembly A before mounting on said sandwich 18 is used for simplifying combination procedure as combination processing.

Referring to Fig. 12 to Fig. 15, cooperating to Fig. 7 to Fig. 10, the embodiment is in using.

When the shoes is not taken on, as same as it done in the first embodiment, said toggle plate 53 is raised up by said torsion-bar spring 8 to appeal V-upside down so that said pressure plate 6 is lifted out by said 1 5 toggle plate 53, meanwhile said puller 52 dose not draw said laces 3 any more, as shown in Fig. 12.

When the wearer is trying to take on the shoes, just need put the foot into the inside of the shoes through the opening as taking on a conventional shoes, use the heel of the foot to press down said pressure plate 6 until the pressure plate 6 is pressed in level, meanwhile the raised toggle plate 53 is getting to be extended downward (as shown in Fig. 13), further to draw the traction rope 54 via said puller 52 to tract said shuttle 51 moving to the backward, during the backward moving, said laces 3 are getting to be strained by the long guide slot 511 of said shuttle 52; in this embodiment, said long guide slot 511 is divided into several channels coordinating to the number of said lace holes 411 or 421 of said lace strip 41 or 42 so that said laces 3 are arranged in order to thread into coordinating channel to make the laces 3 move in parallel contraction further to reduce the inside space of the shoes to shrink the upper to the foot until said toggle plate is unfolded into a flat (as shown in Fig. 14 and Fig. 15), and the lace 3 is tied in a proper tightness to cover the foot, in this time, said latching head 611 of said plug 61 located on the bottom side of said pressure plate 6 is plugged into said clipping hole 711 of said control mechanism 7 so that the cramp 72 just latches on said catching shoulder 612 to lock said pressure plate 6 by said control mechanism 7 during the shoes is taken on and walking without lifting up or any affect to wearing, in this time said torsion-bar spring 8 is pressed to save restoring energy.

When trying to take off the shoes, the wearer just presses down said waterproof button 113 (as shown in Fig. 5) to trigger said control mechanism 7 to make the button 71 move to inward so as to bring to said cramp 72 withdrawing inward to release the locked plug 61, in this time 1 6 the foot can raise up and draw out from the opening of the shoes, meanwhile said torsion-bar spring 8 raises up said toggle plate 53 with the restoring energy to the original state to lift up said pressure plate 6, and said shuttle 51 loses the forward traction force of said traction rope 54 to resume the original state to loose the laces 3, hence under the withdrawing foot force, the upper 12 is spread out so that the lace 3 is drew out from the inside of the shoe body 1, further to tract the shuttle 51 to the original position to get the goal of loosing lace 3 automatically as taking off shoes.

Referring to Fig. 11 to Fig. 15, the another embodiment of the control mechanism of the present invention located in the bottom side of said sandwich 18 coordinating said plug 61 is comprised of a curved cramp 71 coordinating to the shape of the heel portion, a pin 72 and a control spring 73; therein said cramp 71 has a joint portion 711 at the middle for connecting to said sandwich 18 with said pin 72 and a washer 74 in pivot joint, and a sector latch end 712 for latching said plug 61, and a lug 714 at another end 713 for locating one end of a control spring 73, opposite said lug 714, another end of said control spring 73 is fastened on said sandwich 18; on the other side, coordinating to said end 713 of said cramp 7 1, the sole 11 has a through-hole 112 (referring to Fig. 2) set upon approaching the back rim to be attached with a waterproof button 113 by gluing so that the end 713 of said cramp 71 is pressed against the inside end of said waterproof button 113 under the pressure force of said control spring 73 for triggering said control mechanism.

According to the first and second embodiments, the length of the plug 61 is reduced in this embodiment for coordinating to the position of the cramp 71 located on said sandwich 18. Said plug 61 has a latching head 611 with a catching shoulder 612 at the backside so that said latching head 611 plugs into said control mechanism 7 located in said sandwich 18 1 7 and is to be locked as said pressure plate 6 is pressed down in level state, in this case, the sector latching end 712 exactly latches on said catching shoulder 612 of said latching head 611 to keep said pressure plate 6 in level state, and the laces 3 are kept in tight state, and it can be released by pressing the end 713 of the button 71 to make saidcramp 71 turn an angle round said pin 72 so that the latching end 712 slides out from the catching shoulder 612 to loose the lace as taking off the shoes.

Because said control mechanism 7 is just located in said sandwich 18 instead of setting upon a control slot 111 at the middle sole 16 and the sole 11, so it can decrease the thinness of the sole 11 for meeting the sole enhancive elastic necessary of sport shoes.

On the top surface of said sandwich 18 there is a spring 184 set upon coordinating to said pressure plate 6 for acting an upward force to the pressure plate 6 to lift up; when the wearer is trying to take off the shoes, press said waterproof button 113, simultaneously the foot may not give up the pressing force to said pressure plate 6 synchronously so that the catching head 611 of the plug 61 is locked again, so in this way, the wearer is unavoidable to press the waterproof button 113 in many times until said pressure plate 6 is released really. In this embodiment, installing the spring 184 can avoid this kind things happening, said spring 184 will act a restoring force on the heel of foot as the plug 61 is unlocked by pressing the waterproof button 113 so that the taking-off action is more accurate and efficient.

Referring to Fig. 16, said lace 3 provided in the present invention may be fastened on a hasp 9 with one end for adhering on the inside of the upper so that the wearer can change the sticking position of said hasp 9 to adjust the tightness of said lace 3 to adapt variety size of foot, meanwhile to overcome the conventional product's shortcoming of unable to adjust 1 8 the lace in flexibility. Hence said puller 52 is just designed into a pulley base at all.

Referring to Fig. 14, said shuttle 51 of said action adjustment 5 is installed with a set of pulleys 512 in said long guide slot 511; and a pulley 187 is installed on the lug pin 186 in the bottom portion of said sandwich 18 for decreasing the friction coefficient as the laces 3 is moving in fastening and loosing action, further to delay the service life of the laces 3.

Referring to Fig. 17, when adapting into a big size shoes, said toggle plate 53 of said action adjustment 5 should be added extra stroke so that the lifting height of said pressure plate 6 in the inside of shoes is too high to make the insole 17 stretch out form the opening of the shoes, therefore a new pressure plate 6 constructed of three lever arms can overcome this shortcoming; said pressure plate 6 is comprised of a front lever arm 53 1, a middle lever arm 532 and a back lever arm 533, so that said pressure plate 6 may not extend out after finishing lifting pressure plate 6 action.

Summarizing above-mentioned, all the mechanisms and components can be mounted into an individual sandwich 18 in the present invention so that there is not any involved between the sole 11 and the middle sole 16 and the mechanisms located in the sandwich M, so stitching procedure of the shoes is as same as doing in the common shoes so as to be manufactured in industrial scale within quite low reject rate and lower production cost.

1 9 1 claim:

1. An automatic tie fastening and loosing shoes comprised of a shoe body, a lace, wherein it also includes a tie-fastening assembly, an action adjustment, a pressure plate and a control mechanism; said lace is adjusted the tightness by a adjustment; said shoe body includes an upper with a sandwich traction channel cooperating to eyelets, a sandwich between the lower of a insole and the upper of a middle sole; said sandwich has an operating slot; said tie-fastening assembly includes a lace strip with a raw of lace holes at the side wall, and said lace strip is located on inner side of said operating slot of said sandwich; said action adjustment includes a toggle plate located in the inside of said operating slot of said sandwich, and is comprised of two lever arms ---front lever arm and back lever arm connected in pivoting joint, in which the back end of said back lever arm is pivoted on the back side of said operation slot; said front lever arm has a catching rod formed at the ront end for latching on a snap groove of a puller; said puller and the said operation slot at least are attached with a pair of sliding components separately at the back end of said puller and back side of said operation slot; at least one lace stretches into said operation slot of said sandwich via said traction channels and are stranded into one strand after passing through said lace holes of said strip, then is threaded on the back end and the sliding component located on the back end of said puller, finally is fixed on a lug 2 0 pin at the back end of said operation slot; said pressure plate is hung on at the front end of said operation slot with the front end, and is set upon a plug at the back end behind the touching range with said toggle plate, coordinating to said plug on said pressure plate, said sandwich has a through-hole; passing through said through hole on said sandwich, said plug is connected to said control mechanism; said control mechanism is located on the heels of said sandwich and said sole coordinating to said plug, and contained in a control slot on the heel of said sole, at the back side of said control slot there is a through-hole backward for extending out a control button.

2. An automatic tie fastening and loosing shoes as claimed in claim L wherein said sandwich of said shoe body has a processing groove formed at bottom side; said tie-fastening assembly includes two coordinating and paralleling lace strips located on the opposite inner sides of said processing groove separately in a certain space; said action adjustment also includes a shuttle with a long guide slot crossing the both sides so that said shuttle can take sliding motion in the space between said both lace strips; a traction rope is tied on said guide slot with one end, and the another end is threaded through a guide-way of said processing space and a through-hole at the back end of said processing groove sequentially to stretch into the operating slot, then threaded on said sliding components at the back end of said puller roundly, ffially fastens on said plug pin at the 2 1 back end of said operating slot; within the length of said traction rope is about two times than the sum of the length of unfold toggle plate add the length of said guide-way; at least one lace is led into said traction channel in said upper to stretch into saidprocessing groove, and threaded through the lace holes of a lace strip 41 following the sequence, and the long guide slot of a shuttle, finally is tied on the lace holes of another lace strip sequentially.

3. An automatic tie fastening and loosing shoes as claimed in claim 1 or claim 2, wherein said action adjustment also includes an elastic component-a torsion-bar spring, which is put on said pivot pin so that one end of said torsion-bar spring touches against the bottom of said operating slot, and another end against said back lever arm.

4. An automatic tie fastening and loosing shoes as claimed in claim 1 or claim 2, wherein said back end of said puller and the backside of said processing gr: oove are installed with a sliding component individually, said sliding component is a pulley.

5. An automatic tie fastening and loosing shoes as claimed in claim 1 or claim 2, wherein said pivoting pin connecting said front and back lever arms is attached with two sliding components at the both tip ends separately, and said catching rod at front end of said front lever arm is attached with two sliding components at the both tip ends separately.

6. An automatic tie fastening and loosing shoes as claimed in claim 1, wherein said control mechanism includes a button and a cramp combined into a control box; said button is hung 2 2 on a pin, and said pin is fit into a pair of sliding slots of said control box in sliding fitting with the both pin tip ends so that said button can slide in said control box. and by cooperating with a spring said button is pressed backward so as to press on a through-hole drilled on the backside wall of said control slot to touch against a waterproof button retained in said through-hole by gluing.

7. An automatic tie fastening and loosing shoes as claimed in claim L wherein said control mechanism located in the bottom side of said sandwich coordinating said plug is comprised of a curved cramp coordinating to the shape of the heel portion, a pin and a control spring; said cramp is pivoted on said sandwich at the middle portion with a pin; said cramp has a sector latching end for locking on said plug, and holds a spring located on said sandwich with another end.

8. An automatic tie fastening and loosing shoes as claimed in claim 7, wherein said end of said cramp holding a spring has a lug for locating said spring.

9. An automatic tie fastening and loosing shoes as claimed in claim 1 and claim 2,- wherein a spring is set upon the top side of said sandwich coordinating to said pressure plate.

1O.An automatic tie fastening and loosing shoes as claimed in claim 1 and claim 2, wherein said puller is a traction pulley base. on which a pulley is installed.

11. An automatic tie fastening and loosing shoes as claimed in claim 1 and claim 2, wherein said pressure plate of said action adjustment has three lever arms.

2 3 12.An automatic tie fastening and loosing shoes as claimed in claim 1 and claim 2, wherein said action adjustment is a hasp, on which said lace is fastened on with one end, via said hasp to stick on the inside of said upper.

13.An automatic tie fastening and loosing shoes as claimed in claim 2, wherein said shuttle of said action adjustment is installed with a pulley; and a pulley is installed on the bottom side of said sandwich.

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