CN209862488U - Shoelace fastening device - Google Patents

Abstract

The utility model provides a shoelace fastening device, include: a base; the clutch bobbin is cylindrical and comprises an annular groove arranged along the circumferential direction, a plurality of first engaging teeth are distributed on the upper end surface of the clutch bobbin along the circumferential direction, and a wire fixing mechanism is arranged in the annular groove; the shaft sleeve is coaxially sleeved on the periphery of the clutch spool and is fixedly connected with the base, the shaft sleeve limits axial movement of the clutch spool, and two wire inlet holes penetrating through the shaft sleeve along the radial direction are formed in the circumference of the shaft sleeve; the clutch upper cover, be provided with second joint tooth along the circumferencial direction on the lower terminal surface of clutch upper cover, joint stop gear makes second joint tooth and first joint tooth keep the engaged state when clutch upper cover pushes down, makes second joint tooth and first joint tooth break away from the engaged state when the clutch upper cover is pulled up. The utility model provides a shoelace fastener can tie the shoelace effectively, can freely stretch out and draw back the shoelace, only need in the use rotatory clutch upper cover can.

Description

Shoelace fastening device

Technical Field

The utility model relates to the field of daily necessities, specifically speaking relates to a shoelace fastener.

Background

At present, many shoes have shoelaces, and these shoelaces need to be tightened repeatedly constantly, or loosen, and it is very inconvenient to use, especially in some activities, the shoelace is very easy to break away, and it is very inconvenient to tie the shoelace again, if the shoelace is too long, even can appear because step on the shoelace and cause the incident. Therefore, it is desirable to improve in a suitable manner so as to facilitate the fastening of the shoelace.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the utility model provides a shoelace fastening device, include: a base; the clutch bobbin is cylindrical and comprises an annular groove arranged along the circumferential direction, first engaging teeth are distributed on the upper end surface of the clutch bobbin along the circumferential direction, and a wire fixing mechanism is arranged in the annular groove; the shaft sleeve is coaxially sleeved on the periphery of the clutch spool and is fixedly connected with the base, the shaft sleeve limits axial movement of the clutch spool, and two wire inlet holes penetrating through the shaft sleeve along the radial direction are formed in the circumference of the shaft sleeve; the clutch upper cover, it has second joint tooth, joint stop gear to distribute along the circumferencial direction on the lower terminal surface of clutch upper cover, joint stop gear make second joint tooth with first joint tooth keeps the engaged state when clutch upper cover pushes down, make second joint tooth with first joint tooth disengagement state when clutch upper cover is pulled up.

Preferably, the clutch cover further comprises an upper cover, and the upper cover is fixed on the clutch cover in one of the modes of clamping, bonding, bolt connection, riveting and welding.

Preferably, the wire fixing mechanism comprises two pairs of wire fixing holes arranged in the annular groove, wherein each pair of wire fixing holes comprises a through hole and a blind hole which are arranged side by side along the axial direction, and each wire inlet hole and the through hole are the same in height in the axial direction.

Preferably, the clamping limiting mechanism comprises a clamping column extending downwards at the center of the clutch upper cover and a limiting shoulder arranged at the center of the clutch spool, a limiting ring is arranged at the lower part of the clamping column, the inner diameter of the limiting shoulder is smaller than the outer diameter of the limiting ring, the limiting ring penetrates downwards through the limiting shoulder to enable the second engaging teeth to be engaged with the first engaging teeth and keep the engaging state, and the limiting ring penetrates upwards through the limiting shoulder to enable the second engaging teeth to be disengaged from the first engaging teeth.

Preferably, the two pairs of wire fixing holes are symmetrically arranged relative to the axis of the clutch spool, the through holes of the two pairs of wire fixing holes and the blind holes are staggered, and the opening directions of the blind holes are opposite.

Preferably, ratchet teeth are provided on an inner circumference of the clutch upper cover, and pawls that engage with the ratchet teeth are provided on an upper end surface of the boss.

Preferably, the outer side of the upper cover is provided with a rubber sleeve or anti-skid lines.

Preferably, the lower part of the base is made of TPR plastic.

Preferably, the diameters of the through hole and the blind hole are the same as the diameter of the shoelace.

Preferably, a mark indicating that the thread-entry hole is aligned with the through-hole is provided on the shoelace fastening device.

The utility model discloses a shoelace fastener can tie the shoelace firmly effectively, can freely stretch out and draw back the shoelace, only need in the use rotatory binding can. The thread fixing mechanism is simple in structure and easy to process, and can effectively fasten the end of the shoelace. Through the ratchet setting, can prevent that the shoelace is lax. Be provided with gum cover or anti-skidding line on the upper cover, can prevent to skid. The lower part of base adopts the TPR plastic material, can be applicable to with the laminating of different vamps.

Drawings

The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof, taken in conjunction with the accompanying drawings.

FIG. 1 is a perspective view schematically showing a shoelace fastening device in accordance with an embodiment of the present invention;

fig. 2 is a perspective view showing a base according to an embodiment of the present invention;

FIG. 3 is a perspective view of a clutch spool according to an embodiment of the present invention;

fig. 4 is a schematic plan view showing a wire fixing mechanism according to an embodiment of the present invention;

fig. 5 is a perspective view schematically showing a shaft sleeve according to an embodiment of the present invention;

fig. 6 is a perspective view schematically showing a clutch upper cover according to an embodiment of the present invention;

fig. 7 is a perspective sectional view showing a state in which the clutch upper cover and the clutch spool according to the embodiment of the present invention are engaged with each other.

Detailed Description

Embodiments of the shoelace fastening device of the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.

The shoelace fastening device shown in fig. 1 comprises a base 10, an upper cover 20, a clutch spool 30, a shaft sleeve 40, a clutch upper cover 50, a thread fixing mechanism and a clamping limiting mechanism, wherein the clutch spool 30, the shaft sleeve 40, the clutch upper cover 50, the thread fixing mechanism and the clamping limiting mechanism are positioned between the base 10 and the upper cover 20. As shown in fig. 2, the base 10 has a cavity 101 for installing the clutch spool 30, the sleeve 40, and the clutch upper cover 50. As shown in fig. 3, the clutch spool 30 is cylindrical and includes an upper plate 303, a lower plate 304, and an annular groove 302 located between the upper plate 303 and the lower plate 304 and arranged along a circumferential direction, and a plurality of first engaging teeth 301 are distributed on an upper end surface of the upper plate 304 along the circumferential direction.

Second engaging teeth 503 are provided on a lower end surface of the clutch upper cover 50 in a circumferential direction, and the second engaging teeth 503 can be engaged with the first engaging teeth 301 on the clutch spool 30, so that the clutch spool can be driven to rotate. The clutch upper cover 50 can be moved and positioned in the axial direction, specifically, the engagement limiting mechanism keeps the second engaging teeth 503 engaged with the first engaging teeth 301 when the clutch upper cover is pressed down, and the clutch spool 30 can rotate freely when the second engaging teeth 503 are disengaged from the first engaging teeth 301 when the clutch upper cover is pulled up.

The sleeve 40 is fixedly connected to the base 10, and may be connected together by, for example, clipping. As shown in fig. 5, two wire inlet holes 402 penetrating the sleeve 40 in a radial direction are formed on the circumference of the sleeve 40. The bushing 40 coaxially fits around the outer circumference of the clutch spool 30 and limits axial play of the clutch spool 30. The bushing 40 has a certain clearance from the outer circumference of the clutch spool 30 so as not to hinder the rotation of the clutch spool 30. The shoelace is threaded into the annular groove 302 of the clutch spool 30 from the thread inlet hole 402, and a thread fixing mechanism is arranged in the annular groove 302 of the clutch spool 30 and used for fixing the end of the shoelace threaded from the thread inlet hole 402 in the annular groove 302.

The upper cover 20 is fixed to the clutch upper cover 50 and can be mounted together by, for example, a snap-fit connection. However, the present invention is not limited to the snap connection, and a conventional fastening method such as adhesion, bolting, riveting, welding, or the like may be used.

As will be described briefly below, the shoelace fastening device is installed on the upper through the base 10, and then, after a shoelace is threaded through eyelets, one end of the shoelace is threaded through one of the thread inlet holes 402 and the other end of the shoelace is threaded through the other of the thread inlet holes 402 and is fixed in the annular groove 302 of the clutch bobbin 30 by the thread fixing mechanism. The upper cover 20 is pushed down so that the clutch upper cover 50 moves down until the second engaging teeth 503 are engaged with the first engaging teeth 301, and the click limit mechanism keeps the second engaging teeth 503 engaged with the first engaging teeth 301. The upper cover 20 is rotated, and the end of the shoelace is fixed, so that the shoelace is wound in the annular groove 302 of the clutch spool 30, and the shoelace can be fastened by rotating the upper cover 20. The upper cover 20 is lifted up, so that the clutch upper cover 50 moves up to separate the second engaging teeth 503 from the first engaging teeth 301, and the snap-in limiting mechanism keeps the second engaging teeth 503 separated from the first engaging teeth 301. At this time, the clutch spool 30 can be freely rotated. In this case, the shoelace is pulled outward, so that the shoelace can be loosened.

In an alternative embodiment, ratchet teeth (not shown) are provided on the inner circumference of the clutch upper 50, and on the upper end surface of the boss 40, pawls 401 are provided, by which the clutch upper 50 can be rotated only in one direction by the engagement of the pawls 401 with the ratchet teeth. Thereby preventing the clutch spool 30 from being reversely rotated during the tightening of the shoelace, resulting in insufficient tightening of the shoelace.

In an alternative embodiment, as shown in fig. 3 and 4, the wire fixing mechanism includes two pairs of wire fixing holes 402. Wherein each pair of wire fixing holes comprises a through hole 3021 and a blind hole 3022. Also, the line inlet hole 402 is aligned with the through hole 3021. In order to align the thread-insertion hole 402 with the through hole 3021, a mark may be provided on the shoelace fastening device to indicate that the thread-insertion hole is aligned with the through hole. The shoelace is made of hard metal wires such as iron wires. The shoelace is inserted into the through hole 3021 of the clutch spool 30, and the shoelace is bent back after passing through the other end of the through hole 3021 and inserted into the blind hole 3022. During the rotation of the clutch spool 30, since the shoelace is caught between the through hole 3021 and the blind hole 3022, the shoelace is not withdrawn.

Preferably, as shown in fig. 4, two pairs of fastening holes are symmetrically arranged with respect to the axis of the clutch spool 30, the through holes 3021 are staggered with the blind holes 3022, and the blind holes 3022 are opened in opposite directions, so that the ends of the both ends of the shoelace can be separately wound on the clutch spool 30.

In an alternative embodiment, a rubber sleeve is sleeved on the outer side of the upper cover 20, or an anti-skid line is arranged on the outer side of the upper cover 20.

In an alternative embodiment, as shown in fig. 6 and 7, a clamping column 501 extends downwards from the center of the clutch upper cover 50, a limiting ring 505 is arranged at the lower part of the clamping column 501, and a limiting shoulder 305 is arranged at the center of the clutch spool 30. The inner diameter of the retaining shoulder 305 is smaller than the outer diameter of the retaining ring 505. When the clutch upper 50 is pressed downward, the retainer ring 505 is caused to pass downward through the retainer shoulder, and the second engaging teeth 503 are engaged with the first engaging teeth 301 and are held in an engaged state by the retainer shoulder 305. When the clutch upper 50 is pulled up so that the retainer ring 505 passes through the retainer shoulder 305, the second engaging teeth 503 are disengaged from the first engaging teeth 301.

In an alternative embodiment, a friction texture is provided between the through hole 3021 and the blind hole 3022 to increase the tightening effect of the shoelace.

In an alternative embodiment, the diameter of the through hole 3021 and the blind hole 3022 is the same as the diameter of the shoelace.

In an alternative embodiment, the lower portion of the base 10 is made of TPR plastic material, which can be attached to the surface of different shoes.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A shoelace fastening device, comprising:

a base;

the clutch bobbin is cylindrical and comprises an annular groove arranged along the circumferential direction, first engaging teeth are distributed on the upper end surface of the clutch bobbin along the circumferential direction, and a wire fixing mechanism is arranged in the annular groove;

the shaft sleeve is coaxially sleeved on the periphery of the clutch spool and is fixedly connected with the base, the shaft sleeve limits axial movement of the clutch spool, and two wire inlet holes penetrating through the shaft sleeve along the radial direction are formed in the circumference of the shaft sleeve;

the lower end surface of the upper clutch cover is distributed with second engaging teeth along the circumferential direction,

and the clamping limiting mechanism is used for keeping the second joint teeth and the first joint teeth in a meshed state when the upper clutch cover is pressed downwards, and separating the second joint teeth from the first joint teeth in a meshed state when the upper clutch cover is pulled upwards.

2. The shoelace fastening device of claim 1,

the clutch cover is characterized by further comprising an upper cover, wherein the upper cover is fixed on the clutch upper cover in one of clamping, bonding, bolt connection, riveting and welding.

3. The shoelace fastening device of claim 1,

the wire fixing mechanism comprises two pairs of wire fixing holes arranged in the annular groove, wherein each pair of wire fixing holes comprises a through hole and a blind hole which are arranged side by side along the axial direction, and the heights of the wire inlet holes and the through holes in the axial direction are the same.

4. The shoelace fastening device of claim 1,

the clamping limiting mechanism comprises a clamping column extending downwards at the center of the upper cover of the clutch and a limiting shoulder arranged at the center of the clutch spool, a limiting ring is arranged at the lower part of the clamping column, the inner diameter of the limiting shoulder is smaller than the outer diameter of the limiting ring,

the retainer ring passes downwardly through the retainer shoulder so that the second engagement teeth engage the first engagement teeth and remain engaged,

the retainer ring passes upwardly through the retainer shoulder such that the second engagement teeth are disengaged from the first engagement teeth.

5. A shoelace fastening device as claimed in claim 3, wherein the two pairs of thread fixing holes are symmetrically arranged with respect to the axis of the clutch spool, the through holes of the two pairs of thread fixing holes are staggered with the blind holes, and the opening directions of the blind holes are opposite.

6. The shoelace fastening device of claim 1,

ratchet teeth are arranged on the inner circumference of the upper clutch cover, and pawls matched with the ratchet teeth are arranged on the upper end face of the shaft sleeve.

7. The shoelace fastening device of claim 2, wherein a rubber sleeve or an anti-slip texture is provided on an outer side of the upper cover.

8. The shoelace fastening device of claim 1,

the lower part of the base is made of TPR plastic materials.

9. The shoelace fastening device of claim 3 or 5,

the diameters of the through holes and the blind holes are the same as the diameter of the shoelace.

10. The shoelace fastening device of claim 1,

the shoelace fastening device is provided with a mark for indicating the alignment of the wire inlet hole and the through hole.