KR101648815B1 - apparatus for fastening wire - Google Patents

Abstract

In order to improve the reliability of the product by operation of the user in a stable manner during wire tightening operation, the present invention includes a support protruding in a radial direction on an upper portion of a coupling shaft projecting upward from a center of a bottom surface, Shaped gear; A winding member rotatably inserted into the housing, the winding member selectively winding the wire; A ratchet-type gear is selectively formed at a rim portion of the ratchet-type gear, and a wing portion formed at an end portion of the ratchet-type restraining portion is engaged with the ratchet-type gear to form a through hole through which the support is passed. A gear member; A spring portion disposed on the gear member and being brought into close contact with the outer periphery of the support by an elastic restoring force so as to selectively maintain the up and down state of the gear member; And a knob portion protruded downward to press the spring portion toward the support side when the knob portion and the gear member are rotated in the other direction and to cover the upper side of the gear member, And an engaging groove is formed on the other side opposite to the engaging protrusion so as to have a clearance space in which the engaging protrusion is spaced at predetermined rotational angular intervals, And the support member is formed to correspond to a rotation angle for pressing the support side.

Description

[0001] Apparatus for fastening wire [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire tightening device, and more particularly, to a wire tightening device that is stably operated in a wire tightening operation of a user to improve the reliability of the product.

In general, shoes such as athletic shoes are provided so that the shoelace is connected in a zigzag fashion so as to be in close contact with the user's foot size. By tightening the shoelace by pulling it, the adhesion between the shoe and the user's foot is enhanced to enable comfortable walking.

However, in the case of children or elderly people who are in the lower grades of elementary school or elementary school, it is not easy to loosen the shoelaces, and in particular, for the athletes and people who are exercising such as mountain climbing and bicycle race, If the knot or the knot is loosened by an intense movement or by an external object, the loosening of the shoelace must be absolutely prevented, since undesirable results such as recording degradation and occurrence of safety accidents are caused. In addition, when resting during a workout, the shoe strap can be easily restored only when the tightened shoelace can be easily loosened. Most preferably, the shoelace can be easily tightened and the shoe strap can be tightly maintained. .

Many devices have been developed which can facilitate tightening and loosening of a wire such as a shoelace or the like which are contrary to each other as described above. In the Korean Patent No. 953398 filed by the present applicant, a wire clamping apparatus using a ratchet gear has been disclosed have.

Fig. 1 is a perspective view of a shoe equipped with a wire tightening device, and Fig. 2 is an exploded perspective view of a conventional wire tightening device.

1 and 2, a conventional wire fastening apparatus 10 is provided on a sulphone T of a shoe. When the rotary cover 51 is rotated, the intermediate member 53 and the winding member 55 are engaged And is rotated together. At this time, a wire (L) is wound around the winding member and the binding restricting portion 53z of the intermediate member is restrained by the unidirectional ratchet gear 57c of the housing 57 and is not rotated in the reverse direction.

Then, when the rotary cover 51 is pulled upward, the engaging jaw portion 123 of the rotary shaft 61 elastically pressurizes the elastic means 59 to open it, and moves upward to raise the intermediate member 53. As a result, the state of engagement between the intermediate member 53 and the winding member 55 is released and the winding member 55 rotates freely, so that the wire L is pulled and loosened.

However, in the process of winding and winding the wire L by the user, the rotation cover 51 is inadvertently pulled upward. In this case, there is a problem that the child or the elderly who can not know the method of use correctly can damage the product in the course of operating the rotary cover 51 due to unreasonable force, unless the wire L is wound.

Therefore, the rotating cover 51 is pulled up and repeatedly operated in the clockwise direction and the counterclockwise direction to tangle the wire, so that it is necessary to repair such a tangled wire when the wire is reused, There is a problem that reliability is lowered.

Korean Patent No. 10-0953398

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a wire tightening apparatus in which the configuration is stably operated in a wire tightening operation of a user to improve the reliability of a product.

According to an aspect of the present invention, there is provided a motorcycle comprising: a housing having a support protruding in a radial direction from an upper portion of a coupling shaft protruded upward from a center of a bottom surface thereof, and having a circumferential one- A winding member rotatably inserted into the housing, the winding member selectively winding the wire; A ratchet-type gear is selectively formed at a rim portion of the ratchet-type gear, and a wing portion formed at an end portion of the ratchet-type restraining portion is engaged with the ratchet-type gear to form a through hole through which the support is passed. A gear member; A spring portion disposed on the gear member and being brought into close contact with the outer periphery of the support by an elastic restoring force so as to selectively maintain the up and down state of the gear member; And a knob portion protruded downward to press the spring portion toward the support side when the knob portion and the gear member are rotated in the other direction and to cover the upper side of the gear member, And an engaging groove is formed on the other side opposite to the engaging protrusion so as to have a clearance space in which the engaging protrusion is spaced at predetermined rotational angular intervals, And the support member is formed to correspond to a rotation angle for pressing the support side.

Here, it is preferable that the knob portion is provided with a supplementary spring portion extending from the upper surface portion of the knob portion to elastically support the end portion of the knob portion so that the knob portion is elastically restored in one direction when the knob portion is rotated in the other direction by the predetermined rotation angle .

delete

The wing portion is resiliently coupled to the body portion of the gear member and is elastically supported to extend outward by a resilience of a resilient piece extending from the body portion. The wing portion, the body portion, The supporting ribs for pressing and supporting the pivoting connection points of the pivoting members are downwardly protruded.

Preferably, the upper portion of the winding member and the lower portion of the gear member are formed with a locking engagement portion and a locking engagement portion that are selectively engaged with each other.

Through the above solution, the wire clamping apparatus of the present invention provides the following effects.

First, when the user winds the wire, the pressing projection formed on the knob portion presses the spring portion toward the support side, thereby maintaining the stable position without raising the gear member even if the knob portion is forced to pull the knob portion upward or inadvertently. So that it is possible to prevent the occurrence of wire tangling or the like and to improve the reliability of the product.

Secondly, the clearance space which is spaced at the predetermined rotation angle interval of the engaging groove is formed corresponding to the rotation angle for preventing the lifting / lowering of the knob portion due to the user's carelessness by pressing the spring portion toward the support side Since the pressing protrusion applies a pressing force to the spring portion only within the range of the rotation angle within the clearance space, the action of the excessive pressing force by the pressing protrusion is limited to the spring portion, thereby preventing the spring portion from being damaged, Can be improved.

Third, when the knob portion is rotated in the other direction to cause the wire to be wound on the winding member and then the rotational force applied to the knob portion is removed, the elastic restoring force of the auxiliary spring portion causes the knob portion to move in the opposite direction The knob portion can be restored to the correct position by restoring and rotating the knob by the rotational angle, so that the operation feeling of the product can be maintained at a high level.

1 is a perspective view of a shoe equipped with a wire tightening device;
2 is an exploded perspective view of a conventional wire tightening device.
FIG. 3A is an exploded perspective view of a wire fastening apparatus according to an embodiment of the present invention; FIG.
FIG. 3b is a planar view showing a coupling structure of a wing portion to a gear member of a wire fastening device according to an embodiment of the present invention; FIG.
FIG. 4 is a side plan view of a wire tightening apparatus according to an embodiment of the present invention. FIG.
5 is a side plan view of a wire tightening device according to an embodiment of the present invention when unfastened.
FIG. 6 is a planar view showing a relationship between a pressing projection and a spring portion of a knob portion according to an embodiment of the present invention; FIG.
FIG. 7 is a plan view showing a state in which a pressing projection of a knob portion presses a spring portion, which is applied to an embodiment of the present invention; FIG.
8 is a planar view showing a relationship between a pressing projection and a spring portion of a knob portion according to another embodiment of the present invention.
9 is a planar view showing a state in which the pressing projection of the knob portion presses the spring portion, which is applied to another embodiment of the present invention.

Hereinafter, a wire tightening apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3B is a plan view showing a coupling structure of a wing portion of a gear member of a wire fastening device according to an embodiment of the present invention, and FIG. 4B is a plan view of the wire fastening device according to an embodiment of the present invention. FIG. 5 is a side view of a wire tightening apparatus according to an embodiment of the present invention. FIG. 5 is a side view of a wire tightening apparatus according to an embodiment of the present invention.

3A to 5, the wire fastening apparatus 100 includes a housing 110, a winding member 120, a gear member 130, a spring portion 140, and a knob portion 150 .

Here, a circumferential one-way ratchet gear 112 is formed on the inner circumference of the housing 110, through holes 110a and 110b through which wires that can be used as a shoelace, .

In addition, a winding member 120, in which a wire is selectively wound, is rotatably inserted into the housing 110. The winding member 120 is rotated clockwise or counterclockwise by the action of an external force, The wire is wound or unwound.

A coupling shaft 111 is formed at the center of the bottom surface of the housing 110 so that the center hole 121 of the winding member 120 is coupled therewith. A support 115 protruding in a radial direction along the circumferential direction is fastened with a bolt 111a and a circumferential one-way ratchet type gear 112 is formed on the inner periphery of the side wall portion.

The gear member 130 is disposed on the upper side of the winding member 120 and has a through hole 131 through which the support 115 passes. Respectively. Here, a wing 135 formed at an end of the ratchet gear 112 is formed at a rim of the gear member 130. The ratchet gear 112 has a locking restricting portion 135a, The wing portion 135 may be separately engaged with the body portion of the gear member 130.

3A and 3B, a restraint piece 135c is downwardly protruded from a lower surface of the wing 135, and the restraint piece 135c is integrally formed by injection molding from the body, It is preferable that the wing portion 135 is elastically supported so as to be widened outward due to the elastic restoring force of the wing 134.

The ratchet gear 112 is selectively engaged with the locking restricting portion 135a formed at the end of the wing portion 135 so that the one-way rotation of the gear member 130 is restrained. The one direction designates a direction in which the coupling restraining portion 135a is engaged with the ratchet gear 112 to restrict the rotation of the ratchet gear 112 of the housing 110 indicated by a dotted line in FIG. So that the rotation of the gear member 130 in which the engaging and restricting portion 135a is formed is restrained in the counterclockwise direction.

In contrast, even if the ratchet gear 112 is engaged with the engagement restricting portion 135a, the elastic member supporting the wing portion 135 slides along the oblique surface, May be rotated in the clockwise direction and this direction may be referred to as the other direction. That is, due to the external force, the locking restricting portion 135a formed at the end of the wing 135 rotates along the edge of the ratchet gear 112, at which time the wing 135 is bent inward Is returned to its original shape by the action of elastic recovery force in the next period. Accordingly, by repeating the above-described process of the wing 135, the gear member 130 can be rotated in the clockwise direction while providing a clicking feeling to the user. However, in the counterclockwise direction, the wing portion 135 is returned to its original shape, so that the engagement restricting portion 135a is fully engaged with the ratchet gear 112, and thus the gear member is not rotated.

As described above, the circumferential one-way ratchet gear 112 allows the one-way rotation of the gear member 130 to be restricted but can be rotated in the opposite direction, and such a rotatable one- The gear member may be formed to be rotated in the clockwise direction or may be designed to be rotated in the counterclockwise direction by adjusting the shape of the gear member 135a.

The spring unit 140 is disposed at an upper portion of the gear member 130 so that the spring unit 140 can rotate the support member 115 ) By an elastic restoring force. A guide portion 133 having a rectangular or polygonal shape is protruded upward so that the spring portion 140 is inserted into the through hole 131 formed in the gear member 130 so that the spring portion 140 is inserted.

The knob part 150 and the gear member 130 are integrally lifted and lowered through the engagement of the coupling protrusion 158 and the coupling groove 138 which will be described later. "As it comes into contact with the support 115 having an outer periphery of the shape. The inner side of the spring portion 140 moved along the lifting and lowering of the gear member 130 is elastically supported on the outer periphery of the support 115 to maintain the lifting state of the gear member 130.

On the other hand, a coupling fitting portion 127 and a coupling portion (137 of FIG. 3A), which are selectively engaged with each other, are formed on the upper portion of the winding member 120 and the lower portion of the gear member 130. An engaging mating portion 127 and a mating engaging portion 137 are formed along the circumferential direction on the upper portion of the winding member 120 and the lower portion of the gear member 130 to selectively engage with each other.

At this time, it is preferable that at least one of the engaging mating portion 127 and the engaging portion 137 is formed in a protruding gear shape. Accordingly, depending on whether the gear member 130 is lifted or lowered, the engagement and disengagement between the engagement portion 127 and the engagement portion 137 is selectively performed to perform winding or unwinding of the wire of the winding member 120 Can be selected.

4, the gear member 130 and the winding member 120 are coupled to each other to be integrally rotated, and when the gear member 130 is pushed to move under the spring 140, It can be rotated only in the winding direction of the wire.

5, when the gear member 130 is elevated such that the support 115 coupled to the coupling shaft 111 of the housing 110 is interposed on the upper side of the spring 140, The coupling between the gear member 130 and the winding member 120 is released and the winding member can be freely rotated so that the wire can be pulled out to both sides.

The knob part 150 is coupled to cover the upper side of the gear member 130. When the knob part 150 is rotated in the other direction, the spring part 140 is pressed toward the support 115 side, The pressing protrusion 154 protrudes downward.

6 is a plan view illustrating a relationship between a pushing projection and a spring in the knob portion according to an embodiment of the present invention. FIG. 7 is a plan view showing a state in which the pushing projection of the knob portion, which is applied to an embodiment of the present invention, Fig.

As shown in FIGS. 1, 6, and 7, a coupling protrusion 158 protrudes from one side of the knob portion 150 and the gear member 130, and the coupling protrusion 158 protrudes from the opposite side. An engaging groove 138 is formed so as to have a clearance space that is spaced apart at predetermined rotation angle intervals. The coupling protrusion 158 protrudes from the inner circumferential surface of the knob portion 150 and the defect groove 138 is formed in the outer circumferential edge of the gear member 130. [ Here, the gear member 130 and the knob unit 150 are integrally lifted and lowered through the engagement of the coupling protrusion 158 and the coupling groove 138. The knob portion 150 and the gear member 130 are integrally rotated when the coupling protrusion 158 is rotated in the circumferential direction and is in close contact with the rim of the coupling groove 138.

6, the spring portion 140 is elastically contacted with the outer periphery of the support 115 in a state in which no rotational force is applied to the knob portion 150 by an external force. In this case, when the knob portion 150 is subjected to an external force, the spring portion 140 is elastically opened and the support 115 can pass through.

7, when the user operates the knob part 150 to freely rotate the engaging protrusion 158 as much as the clearance space that is spaced at the predetermined rotation angle interval, the pressing protrusion 158 154 provide the spring 140 with a pressing force P toward the support 115 side. This makes it difficult for the support 115 to pass through the spring portion 140. The knob portion 150 and the gear member 130 are rotated together after the engaging projection 158 reaches the circumferential end side edge of the engaging groove 138 and comes into contact therewith.

That is, the clearance space at the predetermined rotation angle interval of the coupling groove 138 is formed in such a manner that the pressing protrusion 158 pushes the spring portion 140 toward the support 115 side by the knob portion 150 so as to prevent the lifting and lowering of the lifting and lowering mechanism.

The urging force of the pressing protrusion 158 is limited so that the pressing protrusion 158 is rotated only in the rotation angle range within the clearance space so as to press the spring portion 140. Therefore, The spring 140 can be prevented from being damaged and the durability of the product can be improved.

While the knob portion 150 is continuously rotated after the engaging projection 158 is rotated in the clearance formed by the engaging groove 138 at the predetermined rotational angular interval of the engaging groove 138, 158 press the spring portion 140 toward the support 115 side. Therefore, the spring portion 140 does not elastically expand even when the wire portion is lifted by carelessness during the operation for winding the wire, so that the lifting and lowering of the gear member 130 and the knob portion 150 is substantially prevented . Therefore, the stable position of the gear member 130 is maintained, so that stable operation of the product is possible and reliability can be improved.

Meanwhile, the knob part 150 may be provided on the lower surface thereof with an auxiliary spring part 157 extending to the upper surface of the gear part 130 so as to be elastically supported. The auxiliary spring portion 157 may be integrally formed or integrally formed with the knob portion 150 during the injection molding of the knob portion 150. The auxiliary spring portion 157 may contact the upper surface portion of the gear member 130 to provide an elastic restoring force. have.

Therefore, when the rotational force applied to the knob part 150 is removed after the knob part 150 is continuously rotated in the other direction to wind the wire on the winding member 120, the elastic restoring force of the auxiliary spring part 157 The knob portion 150 is elastically restored and rotated by the predetermined rotation angle in one direction which is the opposite direction. As a result, the knob part 150 can be restored to a predetermined position, thereby improving the operation feeling of the product.

1, the wing portion 135 is detachably coupled to the body portion of the gear member 130. A rotation protrusion 135b is formed below the rotation connecting point of the wing portion 135, 130) is inserted into a groove (not shown) formed in the body and is rotatably coupled. Here, the support rib 155 may be downwardly protruded from the lower surface of the knob part 150 to support the rotation connection point of the wing 135 to prevent the rotation of the knob part.

FIG. 8 is a plan view showing a relationship between a pushing projection and a spring in the knob portion according to another embodiment of the present invention. FIG. 9 is a plan view showing a state in which the pushing projection of the knob portion, which is applied to another embodiment of the present invention, Fig. In the present embodiment, the basic structure except for the shape of the spring portion is the same as that of the above-described embodiment, and thus description of the same structure will be omitted.

8 and 9, the spring portion 145 according to the present embodiment includes an inner extension 145a which is disposed opposite to the outer periphery of the supporter 115 so as to be elastically supported by the outer periphery of the support 115, And a circular peripheral portion 145b extending in an arc shape along the rim of the gear member 130 from the end of the gear portion 145a.

Accordingly, the circumferential extension 145b is seated on a groove or a guide (not shown) formed on the rim of the gear member 130 so that the force applied during the lifting and lowering is dispersed and supported, So that a stable seating state can be maintained at the time of ascending and descending.

The pressing protrusion 154 presses the spring portions 140 and 145 toward the support 115 side while the engaging projection 158 rotates within the clearance space spaced by the predetermined rotational angle interval as described above, The support 115 can be prevented from passing through the spring portions 140 and 145 by the force of the spring 140. Thus, the gear member 130 can be prevented from being raised by the user inadvertently when the wire is wound. That is, even if the user applies a force to pull the knob portion 150 upward by inadvertently winding up the wire L, the spring portions 140 and 145 pressed toward the support 115 are elastically stretched, And the gear member 130 is maintained in a stable position, so that the product can be stably wound and the reliability can be improved.

Further, since the wire fastening device 100 can easily and stably fasten and untie a wire used as a shoelace or the like due to a simple operation, the wire fastening device 100 not only remarkably increases the quality and reliability of the product, So that it can be distinguished from other products by attaching the wire fastening device 100, thereby securing market competitiveness of the product.

Meanwhile, the wire fastening device 100 according to the present invention is not limited to being used only for tightening a shoelace, but may be applied to a plurality of devices for fastening other straps and may be used for other devices to which the technical idea of the present invention is applied The present invention is not limited thereto.

As described above, the present invention is not limited to the above-described embodiments, and variations and modifications may be made by those skilled in the art without departing from the scope of the present invention. And such modifications are within the scope of the present invention.

100: wire fastening device 110: housing
112: ratchet gear 115: support
120: coiling member 130: gear member
135: wing portion 138: engaging groove
140: spring part 150: knob part
154: pressing projection 158: engaging projection
L: wire

Claims (5)

A housing having a support protruding in a radial direction from an upper portion of a coupling shaft protruding upward from a center of the bottom surface and having a circumferential one-way ratchet type gear in an inner periphery of the side wall;
A winding member rotatably inserted into the housing, the winding member selectively winding the wire;
A ratchet-type gear is selectively formed at a rim portion of the ratchet-type gear, and a wing portion formed at an end portion of the ratchet-type restraining portion is engaged with the ratchet-type gear to form a through hole through which the support is passed. A gear member;
A spring portion disposed on the gear member and being brought into close contact with the outer periphery of the support by an elastic restoring force so as to selectively maintain the up and down state of the gear member; And
And a knob portion protruded downward to press the spring portion toward the support side when rotated in the other direction and coupled to cover the upper side of the gear member,
A coupling protrusion is protruded on one side of the knob portion and the gear member and a coupling groove is formed on the opposite side of the coupling protrusion so that the coupling protrusion has a clearance space at a predetermined rotation angle interval,
Wherein the clearance spaced from the predetermined rotation angle interval is formed to correspond to a rotation angle for pressing the spring portion to the support side. delete The method according to claim 1,
And the auxiliary spring portion is extended from the lower surface of the knob portion so that the end portion of the knob portion is elastically supported by the upper surface portion of the knob portion when the knob portion is rotated in the other direction by the predetermined rotation angle. Device. The method according to claim 1,
The wing portion is resiliently coupled to the body portion of the gear member so as to extend toward the outside due to the elastic restoring force of elastic members extending from the body portion,
Wherein a lower end of the knob portion is protruded downwardly from a support rib for pressing and supporting a rotation connection point between the wing portion and the body portion. The method according to claim 1,
Wherein the upper portion of the winding member and the lower portion of the gear member are formed with an engaging engagement portion and an engaging portion which are selectively engaged with each other.

Images