KR101763868B1 - apparatus for fastening wire - Google Patents

Abstract

Provided is a wire fastening device. To increase convenience of use by simplifying a structure and manipulation and to increase productivity and ease of assembly of a product, the wire fastening device comprises: a cylindrical housing unit which has a ratchet-type gear arranged along the inner circumference; a reel unit which is inserted, to be able to be rotated, in a lower portion of the inside of the housing unit and winds a wire during rotation in one direction; a driving knob unit which is joined, to be able to be rotated, to an upper portion of the housing unit, and has an elevation protrusion, formed to protrude from the inner circumference, and an elastic piece which is formed to protrude downwards from a lower side and has a latching protrusion formed to protrude from the inside; and a gear unit comprising a gear body unit which is arranged on an upper portion of the inside of the housing unit and allows the latching protrusion to be elastically latched to the same, an elastic wing unit which has a ratchet-type engagement unit arranged on an end portion to make rotation in one direction limited by the ratchet-type gear, and an outer circumference unit comprising an elevation guide unit which is gradually inclined upwards in the other direction to be elevated as the elevation protrusion is inserted, slid, and moved.

Description

[0001] Apparatus for fastening wire [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire fastening apparatus, and more particularly, to a wire fastening apparatus which is simplified in configuration and operation to improve ease of use and improve productivity and assemblability of a product.

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

However, in the case of young children or elderly people who are in the lower grades of elementary school or before elementary school, loosening their shoelaces is not easy.

Furthermore, when the ends or knots of the shoestring which is not fixed during the movement such as mountain climbing, bicycle race, etc. are released due to violent movement or jamming by an external object, the risk of injury due to a safety accident as well as recording degradation increases, .

In addition, the shoe strap can be easily tightened, the shoe strap can be easily tightened, the shoe strap can be easily loosened when necessary, while still maintaining the tightened condition.

Accordingly, many devices have been developed to facilitate tightening and loosening of shoelaces which are contradictory to each other.

1 is a perspective view of a shoe with a conventional shoelace tightening device, and Fig. 2 is an exploded perspective view of a conventional shoe strap fastening device.

1 and 2, a conventional shoelace tightening device 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 Combined and rotated together. At this time, a wire L for replacing the shoelace may be wound around the winding member 55 so that the both sides of the shoe can be tightened, and the engagement and restraining portion 53z of the intermediate member is engaged with the ratchet gear 57c ) And reverse loosening can be prevented.

Thereafter, when the rotary cover 51 is pulled upward, the engaging jaw 62 of the rotary shaft 61 elastically pressurizes and pressurizes the elastic means 59 and moves upward while the intermediate member 53 is lifted. 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 can be pulled out.

To this end, manufacturing and assembling of the U-shaped resilient means 59 as a thin metal separately increases manufacturing costs and complicates the assembling process.

The elastic means 59 is frequently broken when the rotary cover 51 for lifting the wire L is lifted from the original position by the fastening device 10. In order to solve this problem, There is a problem in that the lower structure of the housing 57 to which the motor is coupled is complicated and the number of components is increased.

Further, since the rotation cover 51 and the rotary shaft 61 are fastened to each other by the bolt member, an operation error occurs when the bolt member is not completely fastened, and the rotation shaft 61, which is a resin injection product, There is a problem that it is easily broken by a metal bolt member.

Korean Patent No. 10-0953398

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a wire fastening device which is simple in configuration and operation, which improves usability, and improves productivity and assemblability of a product.

According to an aspect of the present invention, there is provided a motorcycle comprising: a cylindrical housing part having a ratchet type gear disposed along an inner periphery thereof; A reel portion rotatably inserted into an inner lower portion of the housing portion to wind the wire in one direction rotation; A driving knob portion rotatably coupled to the upper portion of the housing portion, the driving knob portion protruding from the inner periphery of the lifting protrusion, the driving knob portion protruding downward from the bottom portion, And an elastic wing portion disposed at an inner upper portion of the housing portion, the elastic wing portion being provided with a ratchet fitting portion at an end thereof to restrain rotation of the ratchet gear in the other direction, And a gear portion including an upwardly inclined elevation guide portion formed in an upward direction so as to be elevated in accordance with the sliding movement of the guide portion.

Here, the up-and-down guide unit is formed so as to correspond to the up-and-down interval of the gear unit, and the downward guide unit is provided with a downward guide unit extending in one direction on one side of the up / down guide unit, And the other side thereof is extended in the other direction and the lower side of the upper portion of the reel unit and the lower surface of the gear unit are formed with the engaging part and the engaging part which are selectively engaged with each other, .

At this time, the elastic piece extends so as to be disposed between the inner periphery of the elastic wing portion and the outer periphery of the gear body portion, and a pressing step portion is formed on the inner periphery of the elastic wing portion so as to be pressed by the elastic piece when the driving knob portion is rotated in the other direction .

Preferably, a housing coupling protrusion protruding from the inner periphery of the drive knob is hooked on an outer periphery of the housing part so that the drive knob is coupled to the housing part, and a fastening step is formed radially outward.

Preferably, the gear portion is provided with an alignment through hole extending vertically, and a center portion of the lower surface of the driving knob portion is provided with an alignment boss portion inserted into the alignment through-hole so that the gear portion is aligned.

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

First, the gear portion has an elevation guide portion inclined upwards in one direction at an outer periphery thereof. The elevation protrusion protruding from the inner periphery of the driving knob portion is lifted and lowered according to the rotation of the driving knob portion, and the upper and lower ends thereof are engaged with the driving knob portion Since the coupling between the elastic piece and the reel can be engaged and disengaged, the number of parts for lifting and lowering driving can be reduced, thereby improving the economical efficiency and productivity of the product.

Secondly, since the lifting and lowering protrusion is seated on both sides of the lifting and guiding unit corresponding to the rotation of the driving knob unit, the lifting and lowering unit is seated on the lifting guide unit and the lifting guide unit, / Parts breakage is prevented and the durability of the product can be further improved.

Third, since the pressing step portion is provided on the elastic wing portion so as to overlap the rotation locus of the elastic piece, when the driving knob portion is rotated in the other direction, the elastic piece is urged radially outwardly to engage and restrain the ratchet- The contact between the gear portion and the reel portion is prevented, so that the durability of the product can be further improved.

Fourthly, since the auxiliary cap portion is coupled to the lower opening of the housing portion, substantial driving parts such as a reel portion, a gear portion, and a drive knob portion can be assembled to the housing portion to be provided as a single operation part, In case of damaging of the driven parts, it is easy to replace only the operation part, so the usability of the product can be improved.

1 is a perspective view of a shoe equipped with a conventional shoelace tightening device.
FIG. 2 is an exploded perspective view of a conventional shoelace tightening device. FIG.
FIGS. 3A and 3B are exploded perspective views of a wire fastening apparatus according to an embodiment of the present invention; FIGS.
4A and 4B are cross-sectional views of a wire tightening apparatus according to an embodiment of the present invention.
5A and 5B are views illustrating a process of raising and lowering a gear portion in a wire fastening apparatus according to an 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.

FIGS. 3A and 3B are exploded perspective views of a wire fastening apparatus according to an embodiment of the present invention, FIGS. 4A and 4B are cross-sectional views of a wire fastening apparatus according to an embodiment of the present invention, FIG. 2 is an exemplary view illustrating a process of raising and lowering a gear portion in a wire fastening apparatus according to an embodiment of the present invention;

3A to 5B, a wire fastening apparatus 100 according to an embodiment of the present invention includes a housing part 130, a reel part 140, a driving knob part 110, and a gear part 120 .

The housing part 130 is coupled to the reel unit 140 and is coupled to an upper part of the coupling knob 110 and the gear part 120, Can be attached to or detached from the upper portion of the unit (160).

When the reel unit is rotated in one direction (R, clockwise direction in FIG. 3A), the wire is wound along the outer circumference of the reel unit 140, The object is clamped. In addition, when the reel unit is rotated in the other direction (CR, counterclockwise direction in FIG. 3A), the wire is released from the reel unit 140 and the fastening of the fastening object can be released.

Here, the gear portion 120 transmits the one-directional (R) rotational force applied to the driving knob portion 110 to the reel portion 140, and restricts rotation of the reel portion 140 in the other direction (CR) . Also, the driving knob unit 110 releases the restricting state of the reel unit 140 by the gear unit 120 in the other direction (CR).

That is, the driving knob part 110 is rotated in one direction by an external force, and the gear part 120 and the reel part 140 are integrally rotated in one direction (R) Refers to a portion that performs a function of releasing the coupling between the gear portion 120 and the reel portion 140 during rotation, and may be a single member, and two or more members may be mechanically coupled It is also possible.

In the following description, the one direction R in which the wire is wound is described as an example in which the other direction in which the wire is unclamped is set in the counterclockwise direction in the clockwise direction in the state where the wire fastening device 100 is viewed in the up and down direction, The direction of rotation in which the wire is wound and unwound can be easily changed by reversing the shape of each component to be described later.

3A to 4A, the housing part 130 includes components for fastening and unfastening wires such as the reel unit 140, the driving knob unit 110, and the gear unit 120 And has a cylindrical shape having an inner diameter exceeding an outer diameter of the reel unit 140 so that a receiving space for receiving the reel unit 140 therein is formed.

In addition, a ratchet-type gear 133 is formed along the circumferential direction on the upper inner circumference of the side wall of the housing part 130. At this time, the ratchet gear 133 may be provided with a plurality of teeth provided with one end in the one direction (R) side as a vertical surface and an end in the other direction (CR) as inclined.

The inner circumferential center portion of the housing portion 130 is provided with a partition wall 131 protruding radially inward along the circumferential direction and having an inner diameter less than the outer diameter of the reel unit 140. At this time, the partitioning partition wall 131 supports the upper surface of the reel unit 140 inserted through the lower opening of the housing unit 130.

Here, the housing part 130 may further include an auxiliary cap part 150 to support the bottom part of the reel part 140. The auxiliary cap unit 150 is assembled to the lower end of the housing unit 130 and covers the opened lower portion of the receiving space to support the lower surface of the reel unit 140, And can be arranged to be rotatable without being detached therefrom.

In detail, the auxiliary cap unit 150 is formed as a ring-shaped plate member having an outer diameter corresponding to the inner diameter of the housing unit 130, and a coupling guide hole 154 formed at the center thereof. The outer circumference of the auxiliary cap part 150 is provided with a plurality of cap coupling protrusions 155 having an outer diameter exceeding the inner diameter of the housing part 130.

A plurality of cap engaging holes 135 are formed in the inner periphery of the lower end of the housing part 130 to correspond to the cap engaging protrusions 155. The cap engaging protrusions 155 engage with the cap engaging holes 135, The auxiliary cap portion 150 can be coupled to the lower end of the housing portion 130. [

When the cap coupling protrusion 155 is radially inwardly pressed, the auxiliary cap portion 150 is elastically deformed so that the cap coupling protrusion 155 is separated from the cap coupling hole 135 and the auxiliary cap portion 150 May be detached from the housing part 130. As shown in FIG.

The cap engagement hole 135 extends from the inner circumference of the housing part 130 to the lower end of the partition part 131 and the upper part of the reel part 140, It is preferably formed in the exposed portion. A predetermined clearance space through which the reel unit 140 is rotatable may be formed in the housing part 130 between the partitioning wall 131 and the auxiliary cap part 150. [

In addition, a pair of through-holes 138a spaced apart from each other in the circumferential direction are provided at the lower end of the outer circumference of the housing part 130 so that both ends of the wire connected to the object to be fastened are respectively passed through.

At this time, a guide protrusion 138 having a rounded inner surface is formed so as to protrude from the outer circumferential side edges of each of the through portions 138a so as to reduce wear damage when the wire is wound and unwound. As the both ends of the wire are inserted into the pair of through-holes 138a, the wire can be drawn into the housing part 130, and the drawn wire can be inserted into the housing part 130 And may be coupled with the reel unit 140.

On the other hand, the reel unit 140 is a circular block member formed of a resin material such as reinforced plastic, and is provided with a ring-shaped wire retraction groove 142 formed on an outer circumferential surface thereof in a radially inwardly recessed state. A pair of communication holes 143 are formed in the wire winding groove 142 so that both ends of the wire passing through the penetration portion 138a are separated and inserted. 138a, respectively.

That is, when the communication hole 143 of one of the communication holes 143 is aligned with one of the through holes 138a, the other communication hole 143 is automatically aligned with the other through hole 138a .

When the communication hole 143 and the penetrating portion 138a are aligned and arranged, both ends of the wire can be inserted into the communication hole 143 and the respective penetrating portion 138a. That is, one end of the wire is communicatively inserted along the one-side penetrating portion 138a and one side communication hole 143, and the other end portion of the wire is communicatively inserted along the other side penetrating portion 138a and the other side communication hole 143. [

The lower portion of the reel unit 140 is formed with a coupling workpiece 145 in which the communication holes 143 are joined so that both ends of the wire are combined and confined. Here, the fastening protrusion 145 is depressed upward at one side of the bottom portion of the reel unit 140 so as to be separated from the wire reeling-in groove 142.

At this time, the wire winding groove 142 and the coupling weights 145 may be connected through the communication hole 143. That is, the wire winding groove 142 and the coupling middle 145 can be partially communicated by the communication hole 143 formed radially from the inner circumferential surface of the wire winding groove 142.

The pair of communication holes 143 can be joined and communicated with each other in a state where they are separated from each other and the both ends of the wire can be mutually communicated with each other in the penetrating portion 138a and the communication hole 143. [ And can be assembled into one after being inserted into the tightening stud 145. That is, the fastening protrusion 145 is in communication with the fastening guide hole 154 in a state where the auxiliary cap part 150 is coupled to the lower end of the housing part 130, and both ends of the wire are fastened to the fastening guide hole 154, respectively.

Both end portions of the wire assembled into one are exposed to the lower portion of the housing portion 130 through the fastening guide hole 154 communicated with the fastening middle portion 145 and can be easily assembled.

When the both ends of the wire are collected by a knot or other fixing means, the collecting portion of the wire is constrained to the inner rim of the communication hole 143, that is, the rim 145, The wire can be wound along the wire winding groove 142 starting from a portion disposed on the outer rim of the communication hole 143. [

At this time, the communication holes 143 are preferably formed in an arc shape corresponding to the respective penetration portions 138a, but having a fan shape extending in the circumferential direction toward the outer side in the radial direction. The extended outer space of the communication hole 143 can be easily aligned with the penetration portion 138a and the end portion of the wire drawn into the penetration portion 138a can be aligned along the communication hole 143 And can be guided and inserted into the fastening member 145 easily.

In addition, the fastening protrusion 145 is formed to be inclined radially outwardly toward the lower side on the inner circumferential surface opposed to the communication holes 143 so that the both ends of the wire are guided and discharged. The lower end rim is connected to the fastening guide hole 154 And a discharge guide surface 145a narrowed inward in the radial direction from the inner diameter of the discharge guide surface 145a.

That is, if the wire is pushed to the communication hole 143, the both ends of the wire introduced into the fastening protrusion 145 can be guided downwardly in contact with the discharge guide surface 145a.

Since the lower edge of the discharge guide surface 145a is located radially inward from the inner diameter of the fastening guide hole 154, both ends of the downwardly directed wire are fastened to the fastening guide hole 154 And can be smoothly guided and discharged to the lower portion of the housing part 130. [

Accordingly, the wire and the reel unit 140 can be easily connected so that the wire is restrained by the rotation of the reel unit 140 and wound. Further, since both ends of the wire can be easily inserted and exposed to the lower portion of the auxiliary cap portion 150 through the inner surface of the fastening protrusion 145, the wire can be easily replaced, thereby improving usability.

3A and 4B, the driving knob 110 is rotatably coupled to the upper portion of the housing portion 130 so that the reel unit 140 is rotated freely to release the fastening object. Thereby releasing the coupling engagement of the gear portion 120.

The driving knob 110 includes a knob body 110b coupled to surround the upper end of the upper end of the housing 130 and a knob cover 110a attached to and detached from the upper portion of the knob body 110b. .

Although the knob body 110b and the knob cover 110a may be integrally formed, the knob body 110b and the knob cover 110a may be separately provided in the present embodiment. Are illustrated and described by way of example.

In detail, the knob body portion 110b is provided in a cylindrical shape having an inner diameter exceeding the outer diameter of the upper end portion of the housing portion 130, and the upper end portion of the housing portion 130 and the gear portion 120 are received therein A lifting space 111 is formed. At this time, a grip cover made of an elastic material may be mounted on the outer peripheral surface of the knob body 110b to improve grip feeling.

Here, the housing coupling protrusion 114 may be formed radially inward of the inner circumferential lower end of the knob body 110b. In addition, a ring-like fastening step 132 may be formed on the outer circumference of the housing part 130 in the radial direction.

That is, the knob body 110b is provided with an inner diameter corresponding to the outer diameter of the coupling step 132, and the housing coupling protrusion 114 protruding radially inward from the inner circumference of the knob body 110b And may be engaged with the lower end of the fastening step 132.

At this time, the housing coupling protrusion 114 is formed such that the lower end portion thereof is inclined upwards as it goes inward in the radial direction, and the upper end portion thereof is flat. The coupling end protrusion 114 is formed such that the upper end portion thereof is inclined downward as it goes outward in the radial direction, .

The housing engaging projection 114 can be slid along the sloped upper end of the engaging step 132 and be smoothly moved along the lower side of the engaging step 132.

The flat upper end of the housing coupling protrusion 114 is engaged with the flat lower end of the coupling step 132 so that the knob body 110b and the housing part 130 can be stably hooked. The knob cover 110a is coupled to the knob body 110b so that the knob 110 can be rotated while assembled to the upper end of the housing part 130. [

Further, it is preferable that an elevation protrusion 116 extending inwardly in a radial direction is formed on the inner circumference of the knob body 110b. The elevating protrusion 116 may have various shapes such as a circular shape or a polygonal shape. Preferably, the elevating protrusion 116 has a circular cross-section so as to stably slide on the elevation guide portion 126 described later.

The elevating protrusions 116 may be spaced apart from each other by a predetermined angle along the circumferential direction. At this time, the elevating protrusions 116 are disposed on the rotational locus corresponding to the rotation axis of the knob body 110b.

The elevation protrusion 116 is inserted into the elevation guide portion 126 and slides along the rim of the elevation guide portion 126 in response to the rotation of the driving knob portion 110, Can be selectively raised and lowered.

The knob body 110b is formed with a cover engaging groove 112 recessed radially outward along the inner circumference of the upper end portion. At this time, the knob cover 110a is provided with a stepped cover engaging portion 113 protruding radially outward along the rim to be inserted into the cover engaging groove 112, and hooked to the cover engaging groove 112.

The knob cover 110a may be formed to have an outer circumferential profile corresponding to the inner circumferential profile of the lifting space 111 and have an outer diameter corresponding to the inner diameter of the lifting space 111. The knob body 110b May be covered by the knob cover 110a. Accordingly, when the knob cover 110a is coupled to the knob body 110b, the driving knob 110 may be substantially formed in a container shape.

In addition, the alignment boss 115 protrudes downward in the center of the lower surface of the knob cover 110a. At this time, the alignment boss portion 115 may be extended to be inserted into the gear portion 120 and the reel portion 140.

Here, the elastic piece 117 is downwardly protruded on the lower surface of the knob cover 110a. At this time, the elastic piece 117 may be formed in an arc shape so as to round the inner and outer profiles, and may be elastically deformed radially inward and outwardly.

The elastic pieces 117 may be spaced apart from the alignment bosses 115 radially outward at predetermined intervals. The elastic pieces 117 may be spaced apart from each other by a predetermined angle unit along the circumferential direction, and may be provided in a plurality of the elastic pieces 117.

At this time, a locking protrusion 117b protrudes radially inward from the inner surface of the resilient piece 117. In detail, the locking protrusions 117b may be formed so that the cross-sectional area becomes narrower toward the radially inward side.

That is, the locking protrusion 117b may be formed such that the upper end thereof is inclined downward toward the inner side in the radial direction, and the lower end thereof is inclined upward, so that the inclined surfaces are symmetrical to each other at the upper and lower ends with respect to the center. Thus, the locking protrusion 117b can be elastically hooked to the upper end and the lower end of the gear portion 120.

3A and 3B, the gear portion 120 is formed of a resin material such as reinforced plastic. The gear portion 120 is disposed on the upper side of the housing portion 130, As shown in FIG.

Here, the gear portion 120 is coupled to be coupled with the reel unit 140 so as to rotate integrally with the reel unit 140 in order to maintain the fastening and tightening state of the fastening object. To this end, the gear portion 120 is assembled such that the rotation of the housing portion 130 is constrained to the other direction (CR), and when the gear portion 120 is lowered, the gear portion 120 is integrally rotated in one direction (R).

In detail, the gear portion 120 includes a gear body 120a, an elastic blade 120b, and an outer peripheral portion 120c. Here, the gear body 120a may be formed in a cylindrical shape, and an alignment through-hole 121 penetrating in the vertical direction may be formed at the center of the gear body 120a so that the alignment boss 115 is axially inserted. At this time, the alignment through-hole 121 is provided to have an inner diameter corresponding to the outer diameter of the alignment boss portion 115.

The alignment boss unit 115 is inserted into the shaft support groove 141 formed at the center of the upper surface of the reel unit 140 through the gear body 120a when assembled and the drive knob unit 110, The gear portion 120 and the reel portion 140 may be aligned so as to have mutually corresponding rotational axes. Accordingly, the reel unit 140 is rotatably supported by the alignment boss unit 115 in response to the rotational force of the driving knob unit 110, so that the wire can be stably wound or unwound.

Accordingly, since the reel unit 140 can be rotated stably (see 61 of FIG. 2) without a separate rotation shaft, productivity and assemblability of the product can be improved by reducing the number of component parts. Further, the interference of the rotary shaft with respect to the connecting portions of the wires arranged on the lower side of the reel unit 140 can be eliminated, so that the convenience of installation and replacement of the wires can be improved.

The lower end of the gear body 120a and the upper surface of the reel 140 may be provided with an engagement part 124 and an engagement part 144 which are selectively engaged with each other. The engagement part 124 and the engagement part 144 may be formed as a gear groove / gear projection or a gear projection / gear projection which are engaged with each other.

For example, the engaging portion 144 of the reel unit 140 is provided with a plurality of gear protrusions, each having an end portion on the other side (CR) side in a vertically stepped shape and a one-directional (R) .

The engaging concave portion 124 may be provided with a plurality of gear protrusions formed along the circumferential direction such that the end portions on the other side (CR) side are inclined and the ends of the one direction (R) side are vertically stepped.

Accordingly, when the gear portion 120 is lowered, the inclined portions of the respective gear protrusions can be brought into mutual contact with each other and can be smoothly engaged. When the gear portions 120 contact the step surfaces of the respective gear protrusions during one- The rotational force can be accurately transmitted to the reel unit 140.

A wing base 122c is protruded radially outward from the outer periphery of the gear body 122a and a wing base 122c is formed on the wing base 122c at a radially outer end of the other end 120b.

The elastic wings 120b may be formed to extend radially outwardly and radially outwardly and radially inwardly from the wing base 122c toward the other direction CR in the form of a wider width in the vertical direction than in the radial direction have.

At this time, the elastic wing portion 120b is disposed so that its radially outer side surface portion faces the ratchet gear 133, and on the other side (CR) side end portion is formed a staggered So that the ratchet-shaped fitting portion 123 is formed.

That is, the ratchet-shaped coupling portion 123 is formed of at least one prismatic shape in which the end portion in the other direction (CR) is formed in a vertical step shape and the end portion in the one direction R side is formed in an oblique shape, (CR) side end portion is formed in an oblique shape, and the one end side (R) side end portion is formed in a plurality of steps formed in a vertical stepped shape.

Here, the ratchet-engaging portion 123 is elastically supported radially outward by the elastic force of the elastic wing portion 120b and is engaged with the ratchet gear 133. [

When the ratchet engaging portion 123 is rotated in the opposite direction, the ratchet-shaped gear portion 123 and the ratchet gear 133 are engaged with each other, May be constrained to rotate in the other direction (CR).

When the one-directional (R) rotational force is applied to the ratchet-shaped engagement portion 123, the inclined surfaces of the ratchet-shaped engagement portion 123 and the ratchet-type gear 133 are slid in contact with each other while the elastic wings 120b The gear portion 120 can be rotated in one direction (R) in a state in which the gear portion 120 is elastically deformed radially inwardly and outwardly to give a click feeling.

The elastic wings 120b and the wing bases 122c are provided on the outer periphery of the gear body 120a so as to be spaced apart from each other at predetermined intervals along the circumferential direction .

3A to 4B, the elastic piece 117 is protruded downward from the lower surface of the driving knob part 110, and the inner circumference of the elastic wing part 120b and the inner circumference of the gear body 120a, As shown in Fig. Preferably, the elastic piece 117 is disposed such that its outer circumferential surface is spaced apart from the inner circumference of the elastic wing 120b, and the inner circumferential surface thereof is in close contact with the outer circumference of the gear body 120a.

At this time, the elastic piece 117 is spaced between the inner circumference of the elastic wing 120b and the outer circumference of the gear body 120a when the drive knob 110 rotates in one direction (R) 122c to provide a rotational force to the gear part 120. [

In addition, an engagement step 122 protrudes from the outer periphery of the gear body 120a in a radially outward direction along the lower edge of the gear body 120a. At this time, the engaging stepped portion 122 is brought into contact with the inner surface of the elastic piece 117 in a state where the alignment boss portion 115 is inserted into the alignment through-hole 121 so as to be engaged with the engaging projection 117b. And can extend radially outward.

That is, the engaging stepped portion 122 is provided in a cylindrical shape having a diameter larger than the diameter of the gear body portion 120a, and the elastic pieces 117 are in contact with the outer periphery thereof. By the engaging projection 117b, And can be elastically hooked. Accordingly, the gear body 120a is elastically hooked on the locking protrusion 117b, so that the gear body 120 can be given a clicking feeling when the gear portion 120 is lifted or lowered corresponding to the rotation of the driving knob portion 110 have.

Here, the engagement step 122 is formed with an upper engagement surface 122a inclined downwardly toward the outer side in the radial direction along the upper edge portion, and a lower engagement surface 122b inclined upward radially outward along the lower edge, Can be formed.

At this time, the upper engagement surface 122a and the lower engagement surface 122b are formed to have inclination angles corresponding to the inclined surfaces formed at the upper and lower ends of the engagement protrusions 117b. The elastic piece 117 is pressed against the upper engagement face 122a and the lower engagement face 122b in an inclined manner corresponding to the lifting and lowering of the gear portion 120, Can be elastically deformed radially outward along the clearance space between the gear body 120a and the gear body 120a.

The gear portion 120 may be elastically supported upward or downward by the locking protrusion 117b when the lifting is completed.

That is, when the lowering of the gear part 120 is completed, the locking protrusion 117b contacts the upper engaging surface 122a with the lower end side inclined surfaces to elastically support the gear part 120 downward. When the gear portion 120 is completely lifted up, the engaging protrusion 117b contacts the lower engaging surface 122b with the upper end side inclined surfaces to elastically support the gear portion 120 upward.

Since the engaging protrusion 117b is formed at an inclination angle corresponding to the upper engaging face 122a and the lower engaging face 122b when the gear portion 120 moves up and down, .

Accordingly, the locking protrusion 117b elastically supports the gear portion 120 and the reel portion 140 so that the gear portion 120 and the reel portion 140 are stably held in contact with each other, So that damage to the product is prevented, and even if an external force is generated, the lifting and lowering state of the gear portion 120 can be accurately switched and maintained, and the driving reliability of the product can be further improved. In addition, the user can easily pull the wire in a state where the reel unit 140 rotates freely, so that the usability of the product can be improved.

It is preferable that a pressing stepped portion 125 is formed on the inner circumference of the elastic wing portion 120b so as to be pressed by the elastic piece 117 when the driving knob portion 110 is rotated in the other direction (CR).

Specifically, the pressing stepped portion 125 protrudes from the inner peripheral surface on the side of the other end of the elastic wing portion 120b with the ratchet fitting portion 123, and can be overlapped with the rotation locus of the elastic piece 117 have. The inner circumference of the pressing stepped portion 125 may be rounded to correspond to the rotational locus of the elastic piece 117.

It is preferable that the pressing stepped portion 125 is formed at an angle which is opposite to the elastic piece 117 at an angle at which the engaging fitting portion 124 is completely separated from the engaging portion 144.

That is, when the gear knob 120 is raised by the rotation of the driving knob 110 in the other direction (CR), the pressing step 125 may be pressed toward the outside of the radial direction by the elastic piece 117 have. As a result, the ratchet-shaped engagement portion 123 and the ratchet-type gear 133 can be more stably engaged and restrained, and the clearance space between the elastic wing portion 120b and the gear body portion 120a is removed .

As the drive knob part 110 is rotated in the other direction CR, the elastic piece 117 presses the elastic wing part 120b radially outward when the gear part 120 rises The interlocking rotation of the gear portion 120 may be blocked when the drive knob portion 110 is rotated in one direction (R) for lowering the gear portion 120.

That is, since the driving knob unit 110 can be separated and rotated at a predetermined clearance angle from the gear unit 120, the lifting state of the gear unit 120 can be accurately switched.

The pressing step 125 is pressed radially outward by the resilient piece 117 when the driving knob 110 rotates in the other direction CR, The ratchet type gear 133 is engaged and restrained to prevent the gear portion 120 and the reel portion 140 from being brought into contact with each other due to malfunction, thereby further improving the durability of the product.

The outer circumferential portion 120c is formed in a cylindrical shape having an inner diameter corresponding to the outer diameter of the upper end of the housing portion 130. [ More specifically, the gear body 120a and the elastic wing 120b are disposed in the outer circumferential portion 120c. One end of the upper end of the outer circumferential portion 120c and one side of the outer circumference of the gear body 120a And are radially interconnected. Accordingly, the gear body 120a, the elastic wings 120b, and the outer circumferential portion 120c may be substantially integrated.

At this time, when the gear portion 120 and the housing portion 130 are assembled, the upper end portion of the housing portion 130 may be inserted into the space between the outer peripheral portion 120c and the gear body portion 120a.

As a result, the gear portion 120 can be seated with the end portion of the outer circumferential portion 120c connected to the gear body portion 120a engaged with the upper end portion of the housing portion 130, and the ratchet gear 133 May be disposed so as to face the ratchet mold engagement portion 123.

Here, the elevation guide portion 126 is preferably formed on the outer circumference of the outer circumferential portion 120c. The raising and lowering guide part 126 may be formed to penetrate radially inward from the outer periphery of the outer peripheral part 120c and the raising and lowering protrusion 116 may be inserted into the raising and lowering guide part 126 when assembled. have. At this time, the outer circumferential portion 120c may be formed to have a thickness less than the length of the up / down protrusion 116 so that the up / down protrusion 116 is inserted into the up / down guide portion 126 formed in the through hole.

Of course, in the present embodiment, the shape of the hole penetrated radially inward from the outer periphery of the outer circumference portion 120c is illustrated and described as an example, but the elevation guide portion 126 is not limited to the elevation protrusion 116 may be formed in the shape of a recess formed radially inwardly from the outer circumference so as to be inserted therein.

At this time, it is preferable that the elevation guide part 126 is formed to be inclined upwards in one direction (R).

The reason why the elevation guide unit 126 is formed to be upwardly inclined toward one direction R is that the shape of the elevation guide unit 126 viewed from the outer side of the outer circumference portion 120c is inclined upward toward one direction R Understanding is desirable. In other words, the elevation guide portion 126 is formed to be inclined upward in the upward direction toward the one direction R along the outer periphery of the outer peripheral portion 120c.

The elevating guide portion 126 may be formed to have a width corresponding to the diameter of the elevating protrusion 116 so that the elevating protrusion 116 can be stably slid along the rim of the elevating guide portion 126 .

When the plurality of elevation protrusions 116 are provided, the elevation guide portion 126 may be formed in a plurality of locations on the outer circumference of the outer circumference portion 120c corresponding to the positions where the elevation protrusions 116 are disposed. have.

It is preferable that the vertical height b of the elevation guide portion 126 is formed to correspond to the vertical interval a of the gear portion 120. Here, the vertical height b of the elevation guide unit 126 is understood as a vertical distance between one side and the other side of the elevation guide unit 126.

The lifting distance a of the gear portion 120 is defined as the distance between the engaging engagement portion 124 and the engaging portion 144 so that the reel portion 140 and the gear portion 120 are integrally rotated. The engaging engagement portion 124 and the engaging portion 144 are separated from the gear portion 120 so that the reel portion 140 is freely rotated independently from the gear portion 120 from the position of the gear portion 120, 120) in the direction of the arrow.

The driving knob 110 is spaced from the lower portion of the housing coupling protrusion 114 and the coupling step 132 by a distance between the partition wall 131 and the lifting / (a) or more. Accordingly, the gear portion 120 can be raised and lowered smoothly in the vertical space 111.

Referring to FIG. 5A, it is preferable that a downward guide part 126a extending in one direction R is formed on one side of the up / down guide part 126. In detail, the downward guide portion 126a may be opened in a direction corresponding to the one-directional (R) rotation locus of the elevation projection 116 from one side of the elevation guide portion 126 so as to extend toward the one direction R .

Here, the inner peripheral profile of the end portion of the downward guide portion 126a may be rounded so as to correspond to the outer peripheral curvature radius of the up / down protrusion 116.

Accordingly, when one-directional (R) rotation of the driving knob 110 is completed, one side of the elevation protrusion 116 can be engaged with the end of the downward guide part 126a and stably hooked.

That is, when the driving knob 110 rotates in one direction R, the lifting and lowering protrusion 116 is slid in one direction R along the rim of the lifting and lowering guide unit 126, Downward.

The lifting protrusion 116 slid in one direction R along the rim of the lifting guide unit 126 is moved toward the lifting guide unit 126a and is slid so that the gear unit 120 is lowered The height is fixed.

The engaging engagement portion 124 and the engaging portion 144 are brought into close contact with each other and the rotational force of the driving knob portion 110 is transmitted to the reel unit 140, Lt; / RTI >

Referring to FIG. 5B, it is preferable that an elevation guide portion 126b extending in the other direction CR is formed on the other side of the elevation guide portion 126. The elevating guide portion 126b may be opened from the other side of the elevation guide portion 126 in a direction corresponding to the rotation locus of the elevation protrusion 116 in the other direction have.

Also, the rising guide portion 126b may extend in the other direction CR and may be formed to be perpendicular to the rotation axis of the rotation knob 110. The inner circumferential profile of the rising guide portion 126b may be rounded so as to correspond to the radius of curvature of the outer peripheral curvature of the lifting protrusion 116.

At this time, the rising guide portion 126b is opened downward from the lower edge, and the outside of the elevation guide portion 126 and the outer circumference portion 120c can communicate with each other. As a result, the lifting protrusion 116 can be easily inserted when the lifting guide 126b is opened downward.

That is, when the driving knob unit 110 rotates in the other direction (CR), the elevation protrusion 116 slides in the other direction CR along the rim of the elevation guide unit 126 so that the gear unit 120 And ascends from the lower side to the upper side.

The lifting protrusion 116 slidable in the other direction CR along the rim of the lifting and lowering guide portion 126 is moved toward the lifting guide portion 126b and is slid as the gear portion 120 is lifted Is fixed.

The engaging part 124 and the engaging part 144 are spaced apart from each other and the reel part 140 is engaged with the gear part 120 So that the wire wound around the reel unit 140 can be pulled out. That is, coupling of the reel unit 140 and the gear unit 120 is released, and as the wire of the reel unit 140 is loosened, the fastening object can be switched to the loosened state.

For this, the ratchet gear 133 is preferably provided at a height in the vertical direction of the ratchet engaging part 123 plus the elevating interval a, and the ratchet gear 133 and the ratchet The gear portion 120 can be raised and lowered while the joint portions 123 are held in mutual engagement.

Accordingly, the gear portion 120 moves up and down according to the rotation of the driving knob portion 110 as the lifting and lowering protrusion 116 slides on the lifting guide portion 126, 117 can be coupled with the reel unit 140 and can be switched to the disengaged state, so that the number of components for the lifting and lowering operation can be reduced and the economical efficiency and productivity of the product can be further improved.

The lifting and lowering protrusion 116 is seated on the lifting and lowering guide part 126a and the lifting and guiding part 126b which are extended on both sides of the lifting and guiding part 126 in correspondence with the rotation of the driving knob part 110 Separation and malfunction / parts breakage due to excessive lifting and / or lowering of the parts can be prevented and the durability of the product can be improved.

At this time, the descending guide portion 126a, the elevation guide portion 126, and the elevation guide portion 126b are provided so that the elevation protrusion 116 is spaced apart from the elevation protrusion 116 in correspondence with the clearance angle of the elastic piece 117 desirable.

That is, when the wing base 122c is hooked by the elastic piece 117 when the driving knob 110 rotates in one direction, the lifting protrusion 116 interlocks with the lifting guide 126a, The length of the downward guide portion 126a is set so as to be engaged with the end of the downward guide portion 126a. At this time, the engaging projection 117b is engaged with the upper engaging surface 122a to elastically support the gear portion 120 downward.

When the elastic piece 117 presses the pressing step 125 radially outward when the driving knob 110 rotates in the other direction (CR), the elevating protrusion 116 moves upward And the length of the rising guide portion 126b is set so as to be engaged with the end of the guide portion 126b. At this time, the engaging protrusion 117b is engaged with the lower engaging surface 122a to elastically support the gear portion 120 upward.

Accordingly, the elevation protrusion 116 interlocks with the rotation angle of the elastic piece 117 according to the rotation of the driving knob 110 and slides on the elevation guide part 126, so that the gear part 120 And also the driving state of the gear unit 120 can be clearly switched so that the driving reliability of the product can be improved.

Further, since the gear portion 120 is hooked on the inner side by the elastic piece 117 and is hooked on the outer side by the elevating projection 116, the supporting area is increased and the rotational force of the driving knob portion 110 is increased, (140) so that the usability can be improved.

3A to 4B, the housing part 130 includes the reel unit 140, the auxiliary cap unit 150, the gear unit 120, and the drive knob unit 110, And the assembled operation unit can be mounted to the fastening object through the coupling base portion 160. [0043]

In detail, the coupling base portion 160 is a supporting structure to be fixed to the fastening object such as a shoe, and is made of a resin material such as reinforced plastic, which is an elastic material having a certain strength or more. The coupling base portion 160 includes a base plate 161 fixed to the object to be fastened and a coupling partition wall 162 protruding from the central portion of the upper surface of the base plate 161 to attach and detach the housing portion 130 .

At this time, the base plate 161 may be fixed to the fastening object through fixing means such as sewing or adhesive. When the coupling base portion 160 is fixed to the fastening object, a wire connected to the fastening object is coupled to the reel unit 140, and the housing unit 130 is coupled to the fastening partition wall 162.

It is preferable that the fastening partition wall 162 and the housing part 130 are provided with a hook engaging groove 163 and a hook engaging protrusion 134 on the opposed surfaces which are axially inserted and mutually brought into contact with each other .

That is, the fastening partition wall 162 may have an inner diameter corresponding to the outer diameter of the housing part 130, and may be coupled to surround the outer periphery of the lower end of the housing part 130. Here, the facing surface is preferably an inner circumferential surface of the fastening partition wall 162 and an outer circumferential surface of the lower end of the housing part 130 in contact therewith.

A hook engagement groove 163 is formed in the inner circumferential surface of the fastening partition wall 162 so as to be radially outwardly recessed. The outer circumferential surface of the lower end portion of the housing part 130 is formed with a position corresponding to the hook engagement groove 163 A hook engagement protrusion 134 projects radially outward, and the groove / protrusion shape for hook engagement can be reversed.

It is preferable that the hook coupling groove 163 is formed at the inner peripheral lower end side of the coupling partition wall 162 and is formed to penetrate the base plate 161 at the lower end of the coupling partition wall 162.

Accordingly, the hook coupling groove 163 can be economically formed through the upper and lower molds without using the expensive slide die, and the manufacturing cost of the coupling base portion 160 can be reduced.

An auxiliary fastening protrusion 136 protruding downward from the lower end of the housing part 130 may be inserted into the lower space of the hook engaging groove 163 formed to penetrate the base plate 161, 136 are constrained to the lower space of the hook coupling groove 163, relative rotation between the housing part 130 and the coupling base part 160 can be prevented.

The fastening partition wall 162 may be formed with a key groove 162a through which the penetration portion 138a is aligned so as to guide the coupling angle of the hook coupling groove 163 and the hook coupling protrusion 134 .

More specifically, the key groove 162a has a size corresponding to the penetration portion 138a and the guide projection 138, and the upper end of the coupling barrier wall 162 is opened downward. The penetration portion 138a, As shown in FIG.

At this time, each of the key-depressed portions 162a is formed in a state in which the fastening partition wall 162 and the housing portion 130 are arranged such that the hook-coupling recess 163 and the hook- (138a) and the guide protrusion (138).

Accordingly, when the housing part 130 is pressed toward the fastening partition wall 162 in a state where the penetration part 138a and the guide protrusion 138 are aligned with the key groove part 162a, 134 are inserted into the hook engagement grooves 163 so that the housing part 130 and the fastening partition wall 162 can be accurately assembled.

Also, the housing part 130 can be more stably coupled to the engaging partition wall 162 as the guide protrusion 138 is constrained to both ends of the key groove part 162a in the circumferential direction. When the front side fastening partition wall 162 divided by the key groove 162a is pulled forward, the hook engagement between the front side hook coupling protrusion 134 and the hook coupling groove 163 of the housing part 130 is released And the housing part 130 can be pulled in the diagonal direction on the front side to separate the coupling part from the coupling base part 160.

Accordingly, since the operation of connecting the wire connected to the fastening object to the reel unit 140 and the operation of fastening the fastening base unit 160 to the fastening object can be separated, the installation convenience of the product can be improved.

In addition, since the operation unit can be easily separated from the coupling base unit 160, the inconvenience of separating and rejoining the coupling base unit 160 fixed through sewing or using an adhesive or the like and the possibility of damaging the fastening object Can be minimized.

In addition, when the parts in the operation part are damaged during outdoor activities such as mountain climbing, exercise, etc., the operation part can be simply replaced, so that the usability of the product can be improved.

Of course, the wire fastening apparatus 100 according to the present invention is not limited to the shoes only, and may be used for accessories such as a hat, a helmet, a belt, a glove, a bag, a sports apparatus such as a snowboard, a water ski, The present invention can be applied to a plurality of apparatuses which are worn by fastening a string, and the present invention is also applicable to other apparatuses to which the technical idea of the present invention is applied.

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 these modifications fall within the scope of the present invention.

100: wire fastening device 110: drive knob part
120: gear portion 120a: gear body portion
120b: elastic wing portion 120c: outer peripheral portion
130: housing part 140:
150: auxiliary cap portion 160: coupling base portion

Claims (5)

A cylindrical housing part provided with a ratchet type gear along its inner periphery;
A reel portion rotatably inserted into an inner lower portion of the housing portion to wind the wire in one direction rotation;
A driving knob portion rotatably coupled to the upper portion of the housing portion, the driving knob portion protruding from the inner periphery of the lifting protrusion, the driving knob portion protruding downward from the bottom portion, And
An elastic wing portion disposed at an inner upper portion of the housing portion and having a ratchet engaging portion provided at an end portion of the ratchet gear for restricting rotation in the other direction; And a gear portion including an outer circumferential portion formed with an upwardly inclined elevation guide portion in one direction so as to be elevated in accordance with the insertion and slide movement. The method according to claim 1,
The up-and-down height of the up-and-down guide unit corresponds to the up-and-down interval of the gear unit,
A downward guide portion extending in one direction is formed on one side of the up / down guide portion so that the up / down protrusion is hooked when the gear portion is moved up and down to fix the position of the gear portion,
Wherein the upper surface portion of the reel unit and the lower surface portion of the gear unit are formed with engaging engagement portions and engaging engagement portions selectively engaged with each other. The method according to claim 1,
The elastic piece is extended so as to be disposed between an inner periphery of the elastic wing portion and an outer periphery of the gear body portion,
Wherein a pressing stepped portion is formed on the inner periphery of the elastic wing portion so as to be pressed by the elastic piece when the driving knob portion is rotated in the other direction. The method according to claim 1,
Wherein a housing coupling protrusion protruding from an inner circumference of the drive knob portion is hooked on an outer circumference of the housing portion so that the drive knob is coupled to the housing portion so that the coupling knob protrudes radially outwardly. The method according to claim 1,
The gear portion is provided with an alignment through hole penetrating in a vertical direction,
And an alignment boss portion inserted into the alignment through hole such that the gear portion is aligned is provided at the center of the lower surface of the driving knob portion.

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