CN201577643U

CN201577643U - Shoelace loosening and tightening device and shoe

Info

Publication number: CN201577643U
Application number: CN2009201940199U
Authority: CN
Inventors: 刘兴棋
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-03
Filing date: 2009-09-03
Publication date: 2010-09-15
Anticipated expiration: 2019-09-03

Abstract

The utility model relates to a shoelace loosening and tightening device used for controlling the tightness degree of a shoelace, which comprises a clamping accessory, a loosening and tightening button, a guide piece and a plunger piston part provided with a pillar for positioning a spring, wherein the clamping accessory comprises a plate body and finger-shaped parts formed at both sides of the plate body, and shoelace passing holes are arranged between the plate body and the finger-shaped parts, channels communicated with the shoelace passing holes are defined between finger-shaped parts and the plate body, and the front end of the plate body is provided with a barb; the loosening and tightening button is provided with a barb hole matched with the barb of the clamping accessory, and the loosening and tightening button is fixed on the clamping accessory via the matching of the barb and the barb hole; and a containing space used for limiting the clamping accessory in the guide piece and running through the guide piece is arranged in the guide piece. The shoelace passing holes and the channels are arranged for facilitating the shoelace to pass through, the containing space is arranged for facilitating the shoelace to run through and is suitable for impelling the clamping accessory to selectively move relative to the guide piece so as to tighten or loosen the shoelace between the plate body and the finger-shaped part, and the upper part and the lower part at the rear part of the guide piece are respectively provided with a hole used for fixing the plunger piston part.

Description

Shoelace tightening device and shoe

Technical Field

The invention relates to a shoe product, in particular to a shoelace tightening device for shoes and the shoes which are simultaneously provided with the shoelace tightening device, a shoe tongue cover plate, shoelaces and a shoelace buckle.

Background

Shoes are indispensable products in human daily life. The existing shoes mainly have two types, one type of shoes does not have shoelaces, such as leather shoes, and the shoes are easy, convenient and quick to wear; another type of footwear, such as athletic footwear, having laces thereon, while potentially time consuming and labor intensive to wear, may provide significant advantages over non-laced footwear, such as a lace-laced athletic shoe that may fit well on the foot without falling off for extended periods of time (e.g., long jogging, vigorous basketball or soccer, etc.), but may have a greater likelihood of falling off for shoes without laces. In addition, the shoes with the shoelaces still have certain use market due to certain aesthetic property, and cannot be completely replaced by the shoelace-free shoes.

The conventional shoelace is fixed by tying knots. When the shoelace is loosened, the knot must be untied first, which causes trouble in use. In addition, the material is wasted in terms of the use of the material, since tying a knot requires a certain length of the lace, which is consumed purely for tying a knot.

Another conventional shoelace tightening method. Such as the clamps shown in fig. 1a-1b, have poor load-bearing capacity and are prone to slipping and causing shoe laces to be untightened when applied to products requiring high tightening force.

In addition, the shoes in the prior art need two hands when tying the shoelaces, so that much inconvenience is caused, and the two hands are not always available in daily life. The inconvenience to those who lack one arm goes beyond all.

Accordingly, there is a need for a novel shoelace tightening mechanism that overcomes the shortcomings and drawbacks of the prior art.

Disclosure of Invention

The invention aims to provide a shoelace tightening device for shoes, which has high bearing strength and is not easy to slip, so that shoelaces can be easily tightened or replaced. Shoes that have shoelace take-up unit and shoelace and have shoelace elasticity controlling means, tongue cover plate, shoelace and shoelace buckle simultaneously, and it can be relaxed tighten shoes, can loosen freely or change the shoelace. The shoe is provided with a convex column type shoelace tightness control device, a guide rail and a clamping plate type tongue cover plate, and is provided with a T-shaped tail shoelace buckle, a shoelace buckle and a shoelace.

In order to accomplish the above objects, the present invention provides a shoelace tightness controlling device for controlling the tightness of a shoelace, comprising: the clamping part comprises a plate body and finger-shaped parts formed on two sides of the plate body, shoelace through holes are formed between the plate body and the finger-shaped parts, a channel communicated with the shoelace through holes is defined between each finger-shaped part and the plate body, and a barb for fixing an elastic button is arranged at the front end of the plate body; the elasticity button lets the shoelace part, avoids shoelace adversary's injury. The elastic button is provided with a barb hole which is matched with a barb on the clamping part to ensure that the elastic button is fixed on the clamping part; a guide member having an accommodating space therein to confine the chucking member therein and penetrating the guide member. The lace passage hole and the channel are configured to allow a lace to pass through, the accommodating space is configured to allow the lace to pass through, and the accommodating space is adapted to facilitate the snap fitting to selectively move relative to the guide, so that the distance between the plate body and the finger part is changed, and the lace is clamped or loosened between the plate body and the finger part; and a plunger member fixed to the guide member for restraining the spring and preventing the snap member from falling off the guide member.

The invention also provides a shoe with a shoelace tightening device, a shoe tongue cover plate, shoelaces and a shoelace buckle, which comprises: a plurality of shoelace buckles distributed on the pair of eyelets; shoelaces which are sequentially crossed and accommodated in the shoelace buckles; a tongue lid fixed to the tongue piece; and a shoelace tightening device. The shoelace tightening device comprises: the clamping part comprises a plate body and finger-shaped parts formed on two sides of the plate body, shoelace through holes are formed between the plate body and the finger-shaped parts, and a channel communicated with the shoelace through holes is defined between each finger-shaped part and the plate body; and a guide member having a receiving space therein which limits the fitting member therein and penetrates the guide member, the shoelace passing through the shoelace passing hole and the passage and penetrating the receiving space, the receiving space being adapted to facilitate the selective movement of the fitting member with respect to the guide member in a lengthwise direction of the shoelace, thereby varying a distance between the plate body and the finger portion and further clamping or loosening the shoelace between the plate body and the finger portion.

The shoelace buckle comprises: a bottom; a neck portion protruding from one end of the bottom portion in a transverse direction to a surface on which the bottom portion is placed; and an arm portion extending from the neck portion laterally toward the other end of the base portion. The arm portion, the neck portion and the bottom portion together define a receiving hole for receiving the shoelace, a stopping portion protrudes from a distal end of the arm portion toward the bottom portion, an opening communicating with the receiving hole and having a height smaller than a height of the receiving hole is defined between the stopping portion and the bottom portion, and the height of the opening is configured to be elastically changeable so as to place the shoelace into the receiving hole through the opening. And the shoelace will not automatically separate after entering the shoelace receiving holes, and when the shoelace is required to separate, the shoelace can be separated from the shoelace receiving holes only by slightly applying force.

The invention has the advantages that: the degree of tightness of the shoelace can be adjusted or the shoelace can be replaced through the matching between the clamping part and the guide part. And the load-bearing strength of shoelace take-up unit is big, and the shoelace is difficult for skidding when tying up the shoelace, consequently can tighten up the shoelace easily, pine takes off or change.

Drawings

FIGS. 1a-1b illustrate one manner of coupling a conventional lace tightening device to a lace.

Fig. 2 is a plan view showing the shoelace tightening mechanism in accordance with one embodiment of the present invention.

FIG. 3a illustrates an isometric view of the snap fitting of the shoelace tightening mechanism of FIG. 2.

FIG. 3b shows a front view of the snap-fit member of the shoelace tightening mechanism shown in FIG. 3 a.

Figure 3c shows a left side view of the snap member shown in figure 3 b.

Fig. 3d shows a cross-sectional view of the snap-fitting part of fig. 3c along the direction a-a.

Figure 4a illustrates an isometric view of the guides of the lace tensioner of figure 2.

Fig. 4b shows a front view of the guide of fig. 4 a.

Fig. 4c shows a left side view of the guide of fig. 4 b.

Figure 4d shows a cross-sectional view of the guide of figure 4c along the direction a-a.

FIG. 5a illustrates an isometric view of the tightening button of the shoelace tightening mechanism of FIG. 2.

FIG. 5b illustrates a front view of the release button of FIG. 5 a.

Figure 5c shows a cross-sectional view of the tension button of figure 5b in the direction a-a.

FIG. 6a illustrates an isometric view of the plunger component of the shoelace tightening mechanism of FIG. 2.

Fig. 6b shows a front view of the plunger member of fig. 6 a.

Fig. 6c shows a left side view of the plunger assembly of fig. 6 b.

FIG. 7a shows the connection between the lace tightening device and the lace of FIG. 2.

FIG. 7b shows the engagement between the shoelace tightening control device with protruding posts and the shoelace.

FIG. 7c illustrates, in cross-section, the loose interaction between the lace tightening device and the lace of FIG. 6.

Figure 8a illustrates a perspective view of a shoelace buckle in accordance with one embodiment of the present invention while illustrating the mating relationship between the shoelace buckle and the shoelace.

Figure 8b illustrates a side view of the buckle of figure 8 a.

Figure 8c illustrates a bottom view of the buckle of figure 8 a.

Figure 8d illustrates a rear view of the buckle of figure 8 a.

Figure 8e illustrates a top view of the buckle of figure 8 a.

Figure 8f shows a cross-sectional view of the buckle of figure 8e in the direction a-a.

Figure 8g illustrates a front view of the buckle of figure 8 a.

Figure 9 illustrates the mating relationship between the buckle and the lace of figure 8 a.

FIG. 10 illustrates the mating relationship between the shoelace buckle, the shoelace, the tongue lid, the shoe and the shoelace tightening mechanism.

Detailed Description

The invention will now be described with reference to the accompanying drawings. The present invention aims to provide a novel lace tightening device comprising the following components: the shoelace tightening device comprises a clamping part, a guide part matched with the guide part so as to guide the shoelace, a tightening button used for controlling the spatial position of the guide part and the clamping part relative to each other so as to clamp or loosen the shoelace, and a plunger part. The tightness degree of the shoelace is adjusted or the shoelace is replaced by mutually matching the clamping part, the tightness button, the plunger part and the guide part.

Fig. 2 shows such a shoelace tightening mechanism 60, which includes a guide 62, a snap fitting 61 elastically movable and elastically deformable inside the guide 62, a tightening button 63 fixed to the top of the snap fitting 61, and a plunger member 64 fixed to the bottom of the guide 62.

Fig. 3a-3d show the snap fitting 61 from different perspectives, respectively. As shown in fig. 3a to 3d, the snap-fit member 61 has a generally "mountain" shape, and includes a plate body 611, a pair of bent portions 612 bent transversely outward from one end of the plate body 611, respectively, and a finger portion 613 formed extending longitudinally from a distal end of the bent portions 612. Plate body 611 defines the aforementioned "mountain" shape together with a pair of bent portions 612 and finger portions 613 extending from bent portions 612, respectively.

The other end of the plate body 611 (the end opposite to the end forming the bent portion 612) constitutes a barb 6112 for fixing the bungee button 64. And a pair of upper and lower surfaces 6114 and 6116 (refer to fig. 3c) parallel to each other are provided between both ends of the plate body 611. A guide groove 6111 recessed from the upper surface 6114 and extending between both ends of the plate body 611 is also formed on the upper surface 6114; similarly, a guide groove 6111 recessed from the lower surface 6116 and extending between both ends of the plate body 611 is also formed on the lower surface 6116. The pair of guide grooves 6111 are used to guide the fitting 61 in the guide 62 together (described later in detail). In addition, a limiting hole 6115 is formed at the end of the plate body 611 close to the bent portions 612, and the limiting hole 6115 is disposed between the two bent portions 612 for sleeving a spring therein, so as to achieve an elastic interaction between the fastening member 61 and the guide member 62 (described in detail later). Two side surfaces 6118 which are simultaneously connected with the upper and lower surfaces 6114, 6116 are further arranged between the two ends of the plate body 611. In particular, each side 6118 has a friction structure formed thereon for increasing friction between the side 6118 and other members, such as laces. Preferably, the friction structure is the first tooth 6113 formed on the side surface 6118, but the friction structure may be other structures known in the art, such as a rough texture.

Each bending portion 612 is provided with a lace passing hole 6117 for a lace to pass through. Each finger 613 has an inner wall surface close to the corresponding side surface 6118 of the plate body 611, on which a second toothed portion 6119 corresponding to the first toothed portion 6113 on the side surface 6118 of the plate body 611 is formed. Of course, the second tooth 6119 can be replaced by other friction structures, such as other structures known in the art, e.g., rough texture, etc. It should be noted that: each of the bent portions 612, the finger portion 613 extending from the bent portions 612 and the corresponding side 6118 of the plate body 611 define a space (not numbered) therebetween for allowing the lace to pass therethrough, which is communicated with the lace passage hole 6117 of the bent portions 612.

Referring to fig. 3a, each of the fingers 613 has an outer wall surface opposite to an inner wall surface thereof. The outer wall surface includes an inner concave wall 6132 concaved toward the plate body 611 and an inclined acting wall 6131 connected with the inner concave wall 6132. It can be seen that the horizontal distance between the junction between the angled reaction wall 6131 and the inner concave wall 6132 and the plate body 611 is greatest (relative to the rest of the finger 613). This design facilitates the elastic deformation fit between the snap member 61 and the guide member 62.

The structure of the guide member 62 will be described below. As shown in fig. 4a-4d, the guide 62 has a top wall 6201, a bottom wall 6202 parallel to each other and a pair of side walls 6203 connecting the two. The two side walls 6203, together with the top wall 6201 and the bottom wall 6202, define an accommodating space 6204 for accommodating the above-mentioned snap-fit element 61. A flange 6211 is longitudinally provided on each of the inner surfaces of the top wall 6201 and the bottom wall 6202, the flange 6211 corresponding to the guide groove 6111 of the snap fitting member 61, and the directional sliding of the flange 6211 in the guide groove 6111 realizes the predetermined movement of the snap fitting member 61 in the guide member 62.

In addition, the guide 62 is opened with two holes 6207 at the rear for fixing the plunger member therein. In addition, each side wall 6203 has an inner wall surface facing the accommodating space 6204. The inner wall surfaces include a first guide inner wall 6208, a second guide inner wall 6210, and a transition inner wall 6209 that interconnects the first and second guide

inner walls

6208, 6210. The first inner guiding walls 6208 of the two side walls 6203 mutually define an opening, where the width is slightly smaller than the minimum distance between the tips of the two second teeth (i.e. the distance between the teeth of the teeth 6119) when the lace is completely compressed by the two fingers of the snap-in element. Further, the distance between the two transition inner walls 6209 gradually increases from top to bottom (i.e., the direction from the engagement point between the transition inner wall 6209 and the first guide inner wall 6208 to the engagement point between the transition inner wall 6209 and the second guide inner wall 6210). The distance between the two second guiding inner walls 6210 is slightly larger than the maximum distance between the two fingers 613 of the snap member 61 when they are not compressed (i.e. the position of the joint between the inclined acting wall 6131 and the inner concave wall 6132).

The structure of the release button 63 will now be described. Referring to fig. 3a to 3d, 5a to 5c and 7a to 7c, a hole 631 is formed at the front portion of the release button 63, two inverted grooves 632 are formed at the inner wall of the hole 631, and the hole 631 and the inverted grooves 632 are engaged with the barbs 6112 of the locking member 61, so that the release button 63 can be fixed to the locking member 61. In addition, the two side walls 633 of the tightening button 63 can separate the shoelace 40 to prevent the shoelace 40 from hurting a hand when the tightening button 63 is pressed, and the two concave walls 634 are adjacent to the two side walls 633, so that the concave walls 634 can prevent the tightening button 63 from pressing the shoelace 40 when pressed.

The plunger member 64 will now be described. Referring to fig. 4d, 6a-6c and 7a-7c, plunger member 64 has a spring retention post 642 at the front end thereof and a pair of raised bosses 641 at the rear thereof, which bosses 641 engage apertures 6207 on guide member 62 to retain plunger member 64 on guide member 62. Outermost sidewalls 643 cooperate with sidewalls 6210 and upper and lower walls 6201 of guide member 62 to define lace passage 6205, and this passage 6205 communicates with lace passage 6117 of fastener 61.

Referring to fig. 3a, 3d, 4d and 7a-7c, the first and second lace heads 42 and 41 of the lace 40 pass through the passages between the finger 613 of the snap 61 and the plate body 611, respectively, and extend from the lace passing hole 6117 of the bending portion 612, and then extend from the lace passing hole 6205 of the guide 62. The snap member 61 slides into the accommodating space 6204 from the opening defined by the pair of first guide inner walls 6208 of the guide member 62 by the guide groove 6111 on the snap member 61 sliding in the guide 6211 of the guide member 62.

In addition, one end of a compressible elastic element, such as a compression spring 65 shown in fig. 7b and 7c, is fitted over the limiting hole 6115 of the locking member 61, and the other end of the compression spring 65 is fitted into the boss 642 of the plunger member 64. In a general case, since the compression spring 65 has a reaction force to the snap fitting 61, the inclined action walls 6131 of the two fingers 613 of the snap fitting 61 elastically abut on the two transition inner walls 6209 of the guide 62, respectively, and the force of the transition inner walls 6209 to the action walls 6131 compresses the fingers 613 toward the plate body 611. This compression causes second tooth 6119 of finger 613 and first tooth 6113 of plate 611 to press against first lace head 41 and second lace head 42 of lace 40, respectively, so that lace 40 is pressed and cannot slide relative to fastener 61, thereby tightening lace 40.

When it is desired to adjust the tightness of lace 40 or to replace a worn lace, the user simply pushes the tightening button 63 to further compress the compression spring 65 and further push the engaging member 61 further into the guide member 62. The obliquely acting wall 6131 gradually moves along the transition inner wall 6209 toward the second guide inner wall 6210 as the depth increases. Since the distance between the two transition inner walls 6209 gradually increases from top to bottom and the distance between the two second guide inner walls 6210 is slightly larger than the maximum distance between the two fingers 613 of the fastener 61 when they are not compressed, the compression state of the fingers 613 is gradually released, that is, the distance between the fingers 613 and the plate body 611 is gradually increased, so that the degree of compression of the shoelace 40 is gradually weakened until the shoelace 40 is completely loosened. At this time, the shoelace can be easily adjusted or replaced.

In summary, the shoelace tightening mechanism (the combination of the snap member, the tightening button, the plunger member and the guide member) provided by the present invention can achieve the tightness adjustment of the shoelace or the replacement of the shoelace by the engagement between the snap member and the guide member. If such a combination of the shoelace tightening means and the shoelace is installed in the shoe, it is possible to form the shoe more convenient to use than the conventional shoe, i.e., the degree of tightness of the shoelace is easily controlled, or the worn shoelace can be easily replaced.

It should be noted that, as shown in fig. 6, the shoelace and the shoelace tightening mechanism can be integrated into a whole, i.e., a shoelace tightening and loosening integrated device is formed, which includes the shoelace tightening mechanism and the shoelace passing through the shoelace passing holes of the shoelace tightening mechanism, and the shoelace is connected end to form a closed structure, i.e., integrated with the shoelace tightening mechanism, so as to facilitate the use of the user.

In addition, referring to fig. 2, 4a, 4b, 4d and 7b, two convex columns are added to the two sides of the locking part 62 of the shoelace tension control device 60, and the convex columns are close to one side of the first guiding inner wall 6208 and are located at the center of the upper and lower walls 6201, so that the shoelace tension control device with convex columns can be formed.

In addition, the invention also provides a shoe tongue cover plate which is convenient to use, time-saving and labor-saving, and prevents the shoe tongue piece from wrinkling, and shoes provided with the shoe tongue cover plate and the shoe buckle. By designing the shoelace holder in the reduced structure and elastically pressing or taking out the shoelace in or from the reduced structure through the shoelace holder, the shoelace can be conveniently caught on the shoelace holder and can freely slide in the reduced structure. The tongue cover plate is fixed on the tongue piece to prevent the tongue piece from being folded, and the smooth surface enables the shoe buckle to better slide on the shoe. The following describes in detail the buckle, tongue flap and shoe provided by the present invention.

As shown in fig. 8a to 8g, the buckle 30 according to one embodiment of the present invention has a throat type structure. The buckle 30 includes a base 31, a neck 33 formed to protrude from the base 31, and arms 34 formed to extend laterally from the neck 33.

Specifically, as shown in fig. 8b, the bottom 31 has a first end 311 and a second end 312 opposite to the first end 311. The neck 33 extends upward from the first end 311 of the bottom 31 substantially perpendicular to the plane of the bottom 31. And the arm portion 34 extends from an end of the neck portion 33 remote from the base portion 31 transversely toward the second end 312. The tip of the arm 34 (i.e., the end away from the neck 33) protrudes toward the bottom 31 to form a stopper 343. In particular, the curved surfaces between the neck 33 and the bottom 31 and between the neck 33 and the arms 34 may be used as transition surfaces, and preferably have a concave arc surface as a transition surface, so as to define a semi-closed and substantially circular receiving hole 345 between the bottom 31, the neck 33 and the arms 34, thereby making the shape of the receiving hole 345 more conform to the shape of the shoelace; alternatively, a semi-closed receiving hole 345, which is substantially narrow to wide in the direction from the neck 33 to the opening, is defined between the bottom 31, the neck 33 and the arm 34, so that the receiving hole 345 is shaped to further promote the shoelace to be tightly fitted with the stopping portion 343; the stop portion 343 and the bottom portion 31 define an opening 344 therebetween, and special attention is paid to: the opening 344 is communicated with the receiving hole 345, and the height of the opening 344 is smaller than that of the receiving hole 345, so as to facilitate the elastic compression of the shoelace, so that the shoelace is placed in the receiving hole 345 through the opening 344 after being compressed, thereby forming a necking structure. In other words, the principle of the shoelace sliding into the shoelace holder is: the shoelace is elastically compressed at the entrance of the shoelace holder, and accordingly, the height of the opening of the shoelace holder is just the size of the shoelace after being elastically compressed, and then the shoelace is slid into the receiving hole.

In addition, the bottom of the shoelace buckle is arc-shaped and basically matched with the radian of the vamp, so that the shoelace can be tensioned more conveniently while the foot is not jacked.

The flexible matching of the shoelace and the shoelace buckle is realized by the structure with the necking. The mating process between the two is described below with reference to fig. 9. As shown in FIG. 9, a lace 40 having a certain diameter first passes through an opening 344 having a height that is less than the diameter of the lace. Since lace 40 has a diameter that is greater than the height of opening 344, lace 40 is trapped in opening 344 and cannot enter. At this time, the user may pull the shoelace 40 toward the opening 344 with force, so that the opening 344 elastically presses the shoelace 40, and then the shoelace 40 is smoothly slid into the receiving hole 345 after being pressed. Since the height of opening 344 is less than the diameter of lace 40, lace 40 is restrained in receiving hole 345 and cannot be easily removed from opening 344. In addition, the surfaces of receiving holes 345 may be mirror finished circular holes, thereby facilitating the free sliding of lace 40 within receiving holes 345 without friction. When it is necessary to replace the worn shoelace, the user only needs to pull the shoelace to be replaced out of the opening 344, and the opening 344 presses the shoelace so that the shoelace can be separated from the receiving hole 345.

The buckle 30 of the present invention can be mounted to a shoe (such as the shoe 50 shown in fig. 10) in a variety of ways. For example, the shoelace buckle 30 may be mounted to the shoe by means of a dedicated device, such as a sewing machine. In this case, the shoelace holder 30 is provided with a structure to be engaged with the sewing machine so as to facilitate smooth operation of the sewing machine. This structure is a fitting portion 32 (refer to fig. 8a) formed to extend from the bottom portion 31 of the buckle 30. The mating portion 32 is also adapted to be inserted into an eyelet of a shoe to secure the shoelace buckle 30 to the shoe. Alternatively, the fastening of the shoelace holder 30 to the shoe can be achieved by nailing.

Referring to fig. 8b, in order to easily insert the fitting portion 32 into the shoe without affecting the aesthetic appearance of the shoe, the thickness of the fitting portion 32 is set to be gradually thinner for insertion into the shoe without significantly causing the position on the shoe where the fitting portion 32 is inserted to become very thick, and thus, there is no significant fitting mark. Further, in order to increase the contact area between the fitting portion 32 and the shoe to enhance the pulling force, it is preferable to shape the fitting portion 32 to be spread radially outward from the second end of the bottom portion 31 in a fan-ring shape. It is further preferable that the fitting portion 32 is manufactured in a curved shape, such as a circular arc curved shape, which conforms to the shape of the position on the shoe where the fitting portion 32 is fitted, so that the beauty of the shoe is not affected and the fitting portion 32 is more easily fixed. For example, the mounting portion 32 may gradually transition into a curved shape from one end of the base portion where the neck portion is formed to the other end.

Additionally, in order to make the thickness of the shoelace holder 30 uniform and to make the stress applied to the shoelace holder 30 more uniform in use, material distribution holes may be formed at appropriate positions on the shoelace holder 30. For example, as shown in fig. 8c and 8f, a material homogenizing hole 314 may be formed on the lower surface (the surface facing away from the neck portion 33) of the bottom portion 31. Additionally or alternatively, as shown in fig. 8f and 8e, a material homogenizing hole 341 may be opened on the arm portion 34.

Fig. 10 shows the mating relationship between the shoelace holder 30, the shoelace 40, the shoelace tightening means 60, the tongue lid sheet 70 and the shoe 50. The plurality of shoelace buckles 30 on the shoe 50 are coupled and symmetrically distributed on the pair of eyelet pieces 52. The shoelace 40, which is covered with the shoelace tightening mechanism 60, is sequentially crossed and freely received in the receiving holes, and the tongue cover 70 is fixed to the tongue piece 51.

As described above, the present invention provides a shoe that allows a user to easily, quickly and easily tighten or change a shoelace, compared to the prior art. Or the shoe can be loosened or clamped by one hand.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. A shoelace tightness control device for controlling the tightness of a shoelace, comprising:

the clamping part comprises a plate body and finger-shaped parts formed on two sides of the plate body, shoelace through holes are formed between the plate body and the finger-shaped parts, a channel communicated with the shoelace through holes is defined between each finger-shaped part and the plate body, and a barb is arranged at the front end of the plate body;

the elastic button is provided with a barb hole matched with the barb of the clamping part, and the elastic button is fixed on the clamping part through the mutual matching of the barb and the barb hole;

a guide member having an accommodating space therein to confine the chucking member therein and penetrating the guide member; and

the plunger component is provided with a post for positioning the spring; wherein,

the lace passing hole and the lace passage are configured to allow a lace to pass through, the accommodating space is configured to allow the lace to pass through, the accommodating space is adapted to facilitate the selective movement of the snap fitting relative to the guide, so that the distance between the plate body and the finger part is changed, the lace is clamped or loosened between the plate body and the finger part, and the upper part and the lower part of the rear part of the guide are respectively provided with a hole for fixing the plunger part.

2. A lace tightness control device according to claim 1, characterized in that: a pair of bent portions are respectively formed at one end portions of the plate body to be bent outward, the finger portions are formed to extend from distal ends of the bent portions, and the lace passage holes are defined at the bent portions.

3. A lace tightness control device according to claim 2, characterized in that: the other end part of the plate body is provided with a barb matched with the elastic button, a pair of upper surface and lower surface which are parallel to each other is arranged between the two end parts, the upper surface of the plate body is provided with a guide groove which is recessed from the upper surface and extends between the two end parts of the plate body, and the lower surface is provided with a guide groove which is recessed from the lower surface and extends between the two end parts of the plate body; the elastic button is provided with a barb hole matched with the barb on the clamping fitting part, and the barb hole is matched with the barb on the clamping fitting part to fix the elastic button on the clamping fitting part.

4. A lace tightness control device according to claim 3, characterized in that: the guide part is provided with a top wall, a bottom wall and a pair of side walls which are parallel to each other and are connected with the top wall and the bottom wall simultaneously, the two side walls, the top wall and the bottom wall jointly define the accommodating space, the inner surfaces of each top wall and the bottom wall are longitudinally provided with flanges corresponding to the guide grooves on the clamping part and used for leading the clamping part to perform preset movement in the guide part by means of the sliding of the corresponding flanges in the guide grooves, the upper part and the lower part of the rear part of the guide part are respectively provided with a hole for fixing the plunger part, the plunger part is provided with a pair of convex particles matched with the two fixing holes on the guide part, and the front end of the plunger part is provided; the end part, close to the bent parts, of the plate body is provided with a limiting hole, and the limiting hole is positioned between the two bent parts; the front end of the plunger component is provided with a positioning convex column, one end of a compression elastic element is accommodated on the limiting hole, the other end of the compression elastic element is sleeved on the positioning convex column, and the clamping part is limited in the guide part by virtue of the compression elastic element.

5. A lace tightness control device according to claim 4, characterized in that: the compression elastic element is a compression spring; a shoelace penetrating hole which corresponds to the shoelace through hole of the clamping part and is communicated with the accommodating space is formed between the bottom of each side wall of the guide part and the plunger part; two side surfaces which are simultaneously connected with the upper surface and the lower surface are further arranged between the two end parts of the plate body, and a first tooth-shaped part is formed on each side surface; each finger-shaped part is provided with an inner wall surface close to the corresponding side surface of the plate body, a second toothed part corresponding to the first toothed part on the side surface of the plate body is formed on the inner wall surface, the channels are defined among each bending part, the finger-shaped parts extending from the bending parts and the corresponding side surfaces of the plate body, and the shoelace penetrates through the shoelace through holes, the channels and the shoelace penetrating holes and penetrates through the accommodating space.

6. A lace tightness control device according to claim 5, characterized in that: each finger part is provided with an outer wall surface opposite to the inner wall surface, and the outer wall surface comprises an inner concave wall which is concave towards the plate body and an inclined acting wall which is connected with the inner concave wall; each side wall of the guide part is provided with an inner wall surface facing the accommodating space, the inner wall surface comprises a first guide inner wall, a second guide inner wall and a transition inner wall for connecting the first guide inner wall and the second guide inner wall, the two first guide inner walls jointly define a minimum distance between tooth tips of the two second tooth-shaped parts when the shoelace is completely compressed by the two finger-shaped parts of the clamping part, the distance between the two transition inner walls is gradually increased from a connecting point between the transition inner walls and the first guide inner walls to a connecting point between the transition inner walls and the second guide inner walls, and the distance between the two second guide inner walls is larger than the maximum distance between the two finger-shaped parts of the clamping part when the two finger-shaped parts of the clamping part are not compressed;

7. a lace tightness control device according to claim 6, characterized in that: the compression spring causes the inclined action walls of the two fingers of the snap fitting to elastically abut against the two transitional inner walls of the guide respectively, and the acting force of the transitional inner walls on the inclined action walls causes the fingers to be compressed towards the plate body, so that the second tooth parts of the fingers and the first tooth parts of the plate body respectively press the first shoelace head and the second shoelace head of the shoelace, thereby causing the shoelace to be pressed and not to slide relative to the snap fitting; the inclined acting wall gradually moves along the transition inner wall toward the second guide inner wall by the user's pressing of the tightening part, so that the inclined acting wall gradually moves along the transition inner wall toward the second guide inner wall, thereby gradually increasing the distance between the finger and the plate body, and further loosening the shoelace.

8. A shoe, comprising:

a plurality of shoelace buckles distributed on the pair of eyelet plates; shoelaces which are sequentially crossed and accommodated in the shoelace buckles; a tongue flap secured to the tongue; and a shoelace tightness control device, which is characterized in that the shoelace tightness control device comprises:

9. The shoe of claim 8, wherein said buckle comprises: a bottom; a neck portion protruding from one end of the bottom portion in a transverse direction to a surface on which the bottom portion is placed; and an arm portion extending from the neck portion laterally toward the other end of the base portion, the arm portion, the neck portion and the base portion defining a receiving hole for receiving the shoelace, a stopper portion protruding toward the base portion from a distal end of the arm portion, an opening communicating with the receiving hole and having a height smaller than a height of the receiving hole being defined between the stopper portion and the base portion, the opening being configured to be elastically changeable in height so as to place the shoelace into the receiving hole through the opening; the curved surfaces are used as transition surfaces between the neck part and the bottom part and between the neck part and the arm part of the shoelace buckle; the curved surface is an inward concave arc surface.

10. Shoe according to claim 9, wherein: the other end of the bottom of the shoelace buckle, which is opposite to one end forming the neck, extends outwards to form a matching part;

wherein the fitting portion is diffused in a fan-ring shape from one end of the bottom portion where the neck portion is formed to the other end.