SK6032Y1 - Device for tightening shoe on the foot - Google Patents

Abstract

Device for tightening shoe on the foot consists from the lace part (A), the tension part (B) and the switch section (C). The lace part (A) consists from set of pulley (1) and lace (2). In the tension part (B) the ends of lace (2) are led from the lace part (A) to the tension mechanism (6). In the switch section (C) the head (6 g) controls the switching and interrupting of the catch (6d) and thereby releasing and tightening the laces (2).

Description

The technical solution relates to a shoe fastening device which achieves faster, more regular and easier footwear footwear.

BACKGROUND OF THE INVENTION

Until now, the shoe is fastened to the foot by means of a lace which crosses over a set of holes on two opposite sides of the shoe. After tightening, the two ends of the cord are tied with a bow. In order to evenly tighten the sidewalls, it is sometimes necessary to tighten the string in parts. Sometimes, the shoes have holes in the sidewalls partially replaced by hooks, which by gradual crossing and tightening to achieve a slightly easier and stronger fastening shoes. The long ends of the string are still a problem, so after the first tie, more than one bow usually needs to be made or otherwise absorb the remaining string lengths. Often the cords are loosened or unevenly pulled. The bow is not a reliable fastener at all, forming a non-aesthetic and misleading element at the top of the shoe.

The essence of the technical solution

These drawbacks are largely eliminated by the foot-fastening device, which represents an alternative to current fastening methods. The device consists of three parts, namely the lacing part A, the tensioning part B and the switching part C.

The essence of the lace part A is that the lace is crossed across the set of pulleys with low friction resistance to the lace movement. The pulleys are fastened to the sides of the shoe. The lacing in part A ends with two loose ends of the lace.

The essence of the tensioning part B is that the ends of the cord of part A are guided to a tensioning mechanism which consists of a drum, a spool, a latch, a shaft, a head and a switching mechanism C.

The drum has a two-part spool rotatably mounted on which the laces are pivoted from two opposite directions so that the spool and drum are subjected to minimal forces and moments. The coil is connected to a spring-loaded latch with a switching mechanism and further via a shaft to a head, by means of which the coil is rotated manually and unidirectionally in the drum. The drum is fastened to one of the sides of the shoe.

The principle of the switching mechanism C consists in switching the latch on and off, the two positions thus obtained are secured. The laces are tightened by unidirectional rotation of the head with the spring-loaded latch engaged. To release the cord, the latch is disengaged causing the cord reel to rotate freely. In order to keep the head or other switching mechanism in the new position, a spring-loaded safety device is used. The head therefore has two positions. One position is for engaging the latch and then tightening the cord, and the other position is for releasing the latch and then releasing the strings.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is an overall view of a shoe fastening device.

Fig. 2 A is a plan view of a pulley.

Fig. 2B is a front view of a pulley.

Fig. 3 is a detail of the tensioning mechanism.

Examples of technical solution

The shoe fastening device of FIG. 1 is made up of three parts, the lacing part A and the tensioning part B and the switching part C.

The lace section A consists of lace rollers 1 and a lace 2. The rollers are mounted on both sidewalls 4 of the shoe 5. The lace 2, preferably thinner and round in shape, is guided continuously and crosswise through a set of rollers ending with the two free ends of the lace 2.

In FIG. 2A and 2B, a detail of a low friction pulley is shown when the cord 2 is guided. The pulley 1 is composed of a frame 1a, a roll 1b and an axle 1c. The disc 1b rotates freely on the axis 1c and is fastened in the frame 1a. The disc 1b has a depression adapted to the shape of the cord over its entire circumference. The disc 1b is guided in the frame 1a so that there are no lateral gaps. The flange ld of the frame 1a serves to secure the pulley to the sides 4 of the shoe 5.

SK 6032 Υ1

The tensioning part B is formed by a tensioning mechanism 6 (shown in FIG. 3), which consists of a drum 6a, a two-part coil 6b, an axle 6c, a spring catch 6d, a spring lock 6f, a head 6g, a flange 6h. nut 6i and spool shaft 6j, flanges 6h and bearings 6k.

The laces 2 are guided into the drum 6a from two opposite sides of the drum. The laces 2 are pivoted on the two-part spool 6b in the opposite direction, the direction of rotation of the spool 6b remaining the same. In this arrangement, the drum is subjected to minimal moments and forces. The two-piece coil 6b is rotatably mounted in the drum 6a on the shaft 6c. and bearing 6k.

One of the many latch designs in this case consists of two parts:

The first portion of the latch 6d is a sawtooth disk 61. The second portion is the sawtooth 6h on the surface of the drum 6a that corresponds to the sawtooth 61. The two parts of the teeth 61a and 6h of the latch 6d are either coupled or detached. A spring 6e located between the cavity of the head 6g and the latch disc 6d mediates a spring contact between the saw toothing 61 and the corresponding toothing 6h. By means of the nut 6i on the latch 6d, the amount of the gap between the saw teeth 6h and 61 is checked.

The rim 6m connected to the drum 6a serves to secure the tensioning mechanism 6 to the sidewalls 4 of the shoe 5.

The laces 2 are tightened by directing the head 6g with the latch 6d engaged. The strings 2 are released by detaching the latch 6d, causing the cord 6b with the cord 2 to rotate freely in the drum 6a. In order to keep the head 6g or other switching element in the new position, the switching mechanism C serves for this.

The switching part C consists of a switching mechanism 3, which consists of a head 6g, a common shaft 6i of a spring axle 6f and a fastening rod 6p moving in the extended shaft groove 6j.

The head 6g is displaceably mounted on a shaft 6j whose axial displacement is limited by the mounting rod 6p. the torque transmission between the head 6g and the shaft 6j is maintained. The spring-loaded end axle 6f fits into the two grooves on the shaft 6i in the respective positions. The switching mechanism C thus locks the two positions of the head 6g against the shaft 6j in the on and off positions 6d. wherein one position ensures the free rotation of the coil 6b and the other position provides the latch 6d to engage and cause the head 6g to engage the coil 6b.

The head 6g thus has two positions. One position is for engaging the latch 6d and then tightening the cords

2. The second position is for releasing the latch 6d and subsequently releasing the strings 2. The strings 2 are tightened by unidirectionally rotating the head 6g.

The device according to this technical solution enables fast, uniform and comfortable fastening and releasing of shoes.

PROTECTION REQUIREMENTS

Claims (4)

A device for attaching a shoe to a foot consists of a lacing part (A), a tensioning part (B) and a switching part (C), characterized in that the lacing part consists of a set of rollers (1) and a cord (2), wherein the string (2) is crossed by a set of pulleys (1) which are fastened to the sidewalls (4) of the shoe (5), the string (2) ending with two free ends which are further led in opposite direction in the tensioning part (B) into a tensioning mechanism (6) mounted on one of the sidewalls (4) of the shoe (5). Device according to claim 1, characterized in that the tensioning mechanism (6) consists of a drum (6a), a two-part spool (6b), a shaft (6j), a spring-loaded pawl (6d), a head (6g) and a switching mechanism (3), wherein the drum (6a) has a rotatably mounted two-part coil (6b) connected to a shaft (6j) which is connected to a head (6g) which is connected via a spring-loaded pawl (6d) to the drum (6a). Device according to claim 2, characterized in that the switching mechanism (3) is formed by a head (6g), a spring axle (6f), and a shaft (6j), the head (6g) being axially displaceable on the shaft (6j), which has grooves on its periphery, in which the spring axle (6f) fits in the respective positions. Device according to claim 2 and 3, characterized in that the spring-loaded pawl (6d) has two lockable positions in which one pawl (6d) is engaged and in the other position in which the pawl (6d) is disengaged.