KR100986674B1 - Winding and unwinding apparatus for elastic string - Google Patents

Abstract

PURPOSE: An elastic string winding and unwinding device is provided, which facilitates winding and unwinding operation of an elastic string and secures market competitive power. CONSTITUTION: An elastic string winding and unwinding device comprises: housings(10,10A) including a receptor which is arranged around a central axis and a body formed in one side of a receptor one side; and rotary units(20,20A) which are combined with the housing by a mounting member to make up and down movement possible. The rotary unit includes: a central inside hole for being inserted into the central axis; a column having a joint for fixing the elastic string to the outer circumference; a bottom body equipped at the lower part of the column; and an upper body equipped at the upper part of the column.

Description

Elastic String Winding and Unwinding Device {WINDING AND UNWINDING APPARATUS FOR ELASTIC STRING}

The present invention relates to a winding and unwinding device for an elastic string, and to a winding and unwinding device having a structure in which the elastic string is tightly wound or automatically released by a wound elastic force.

As the technology regarding the winding and unwinding device,

Republic of Korea Patent No. 10-0929587 (registered on November 25, 2009, hereinafter referred to as 'advanced technology') 『line length adjusting device』 is proposed,

The prior art is provided on one side of any one of the fixed housing and the rotary housing rotatable housing rotatably coupled to the fixed housing and the winding portion is wound or unwinding, the fixed and the rotary housing, the fixed and The first toothed type and the second toothed type provided along the direction in which the rotary housings are coupled to each other, and the other one of the fixed and rotary housings, which is not provided with the first toothed type and the second toothed type, A latch that engages and interacts with the first toothed type or the second toothed type so that the string can be wound or unwound in the mounting portion, and the latch selectively engages with any one of the first toothed type and the second toothed type It is a technology characterized in that it comprises a coupling unit for coupling the fixed and rotational housing to rotate.

The above prior art makes it possible to adjust the length of the cord conveniently and effectively, and to simplify the structure,

As the total number of components for adjusting the length of the cord increases, a material cost rise and a manufacturing cost increase due to this, and there is a problem that the market competitiveness is inevitably deteriorated.

In order to solve the above problems

Elastic string winding and unwinding device of the first embodiment according to the present invention

It has an upper opening receiving space and a receptor having a central axis at the bottom thereof and a plurality of one-way ratchet arranged radially thereto, and an elastic string insert connected to the receiving space of the receptor. A housing including a body formed at one side of the receptor; And

A pillar having an inner center hole and an outer circumferential surface engaging portion for fitting to the central axis, a lower body having a plurality of corresponding ratchets engaged with each ratchet and being provided under the pillar; And a rotation unit including a gripping upper body provided at the upper portion of the pillar, and coupled to the housing by a mounting means to move upward and downward.

Including but not limited to,

The upper body of the rotating unit has a locking portion formed along the inner circumferential surface,

The housing has upper and lower corresponding engaging portions formed along the outer circumferential surface of the housing,

The elastic string has one end fixed to the attachment object and the other end fixed to the engaging portion,

When the latching portion is caught by the lower corresponding catching portion, the ratchet and each corresponding ratchet are engaged with each other, and the elastic string is wound around the pillar when the rotating unit is rotated in one direction.

When the engaging portion is caught by the upper corresponding catch portion, the elastic string is automatically released as the rotary unit is forced to rotate in the other direction by the elastic force of the elastic string wound while the engagement between each ratchet and each corresponding ratchet is released. It is done.

Elastic string winding and unwinding device of the second embodiment according to the present invention

It has an upper opening receiving space and a receptor having a central axis at the bottom thereof and a plurality of one-way ratchet arranged radially thereto, and an elastic string insert connected to the receiving space of the receptor. A housing including a body formed at one side of the receptor; And

A pillar having an inner center hole and an outer circumferential surface engaging portion for fitting to the central axis, a lower body having a plurality of corresponding ratchets engaged with each ratchet and being provided under the pillar; And a rotation unit including a gripping upper body provided at the upper portion of the pillar, and coupled to the housing by a mounting means to move upward and downward.

Including but not limited to,

The upper part of the rotating unit has a plurality of radially arranged sub-ratchet in the upper portion and integrally formed on the upper part of the pillar, and a plurality of corresponding sub-ratchet engaging with each of the sub ratchet is caught along the inner peripheral surface An addition is formed of a holding member arranged on the plate,

The housing has upper and lower corresponding engaging portions formed along the outer circumferential surface of the housing,

The elastic string has one end fixed to the attachment object and the other end fixed to the engaging portion,

When the latching portion is caught by the lower corresponding catching portion, the ratchet and the corresponding ratchet, the sub ratchet and the corresponding subratchet are engaged with each other, and the elastic string is wound around the pillar when the holding member is rotated in one direction.

When the engaging portion is caught by the upper corresponding engaging portion, the engagement between each sub ratchet and each corresponding sub ratchet is released, and the pillar body, the lower body, and the plate forming one bundle are automatically raised by the elastic force of the wound elastic string. At this time, as the engagement between the ratchet and the corresponding ratchet is released, the pillar body, the lower body and the plate are forcibly rotated in the other direction, so that the elastic string is automatically released.

And the elastic string winding and unwinding devices of the first and second embodiments

Body of the housing is characterized in that the sewing wing for the coupling with the attachment object is formed on the periphery.

And the elastic string winding and unwinding devices of the first and second embodiments

The body of the housing and the pillar of the rotating unit are each characterized in that the insertion portion and the coupling portion is formed by two.

Elastic string winding and unwinding device according to the present invention,

Compared with the conventional parts, the number of parts can be reduced, thereby lowering the manufacturing cost, thereby securing market competitiveness.

In addition, there is an effect that the ease of use for winding or unwinding the elastic string is improved.

1 is an exploded three-dimensional block diagram showing a winding and unwinding device of a first embodiment according to the present invention;
2 is a three-dimensional configuration diagram of FIG.
3 is a cross-sectional view of the combined configuration of FIG.
4 is a partial cross-sectional configuration of FIG.
5a and 5b is an operating state diagram,
6 is an exploded three-dimensional block diagram showing a winding and unwinding device of a second embodiment according to the present invention;
7 is a cross-sectional view of the combination of Figure 6,
8a and 8b is an operating state diagram,
9 shows a use embodiment.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, the bolt side is defined as the upper side or the upper side and the housing side is specified as the lower side or the lower side, based on FIG. 1.

And "A" and "B" of FIG. 1, "C" and "D" and "E" of FIG. 6 is a view of each of the corresponding portions from different directions,

5A and 8A, each [a] is a cross-sectional view of the elastic string wound, and [b] is a partial cross-sectional view at this time.

In addition, in Fig. 5B and Fig. 8B, each [a] is a cross-sectional view in the state where the elastic string is loosened, and each [b] is a partial cross-sectional view at this time.

As shown in Figures 1 to 9,

The elastic string winding and unwinding device of the first and second embodiments according to the present invention consists largely of a housing 10 and a rotating unit 20.

In the elastic string winding and unwinding devices of the first and second embodiments

Housing 10 is

As shown in Figures 1 and 6,

It comprises a receptor 11 and a body 12 formed on one side thereof.

The receptor 11 is

Receiving space portion 111 of the upper shape is opened,

A central shaft 112 protruding upward in the center of the bottom of the accommodation space 111; and

A plurality of ratchets 113 arranged radially on the bottom of the accommodation space 111 with respect to the central axis 112.

Is done.

First, in consideration of the counterclockwise direction in the normal locking and the clockwise unlocking, 'one direction' and 'other direction' to be described below are used to mean 'clockwise' and 'counterclockwise', respectively. do.

Each ratchet 113 is

As shown in "B" of FIG. 1,

When viewed from the plane has a form inclined in one direction. That is, it has the normal ratchet shape which has the inclination part inclined in one direction, and the vertical part at the end part thereof.

The receiving space 111 is an open space 111a is formed in the area where each ratchet 113 is located,

Each ratchet 113 is located in the open space 111a, and the open space 111a and the ratchet 113 are connected to each other by a relay 113a.

Therefore, each ratchet 113 is elastically pushed by the relay unit 113a when the corresponding ratchet 221 to be described later is carried over, and the original position is possible.

The body 12 is

To be formed on one side of the receptor (11),

It has an elastic string insertion portion 121 which is connected to the receiving space 111 of the receptor (11).

At this time, in the present invention, two insertion parts 121 are formed.

In the elastic string winding and unwinding devices of the first and second embodiments

The rotating unit 20

As shown in Figures 1 and 6,

To be coupled to the housing 10 to enable vertical movement by the mounting means 30,

A pillar body 21 having an inner center hole 211 and an outer circumferential surface engaging portion 212 for fixing the elastic string 1 to be fitted to the central shaft 112,

A lower body 22 having a plurality of corresponding ratchets 221 meshed with the ratchets 113 and provided below the pillar body 21, and

A gripping upper body 23 provided on the pillar 21.

It is made, including.

Wherein the coupling portion 212 of the pillar 21 is provided with two formed on each side wall of the outer peripheral surface of the pillar 21,

In addition, each coupling portion 212 has one or more coupling holes 212a formed therein.

When one coupling hole 212a is formed, the other end of the elastic string 1 may be inserted into the coupling hole 212a, and the other end portion may be knotted to be coupled to each other.

When the two coupling holes 212a are formed, the other end of the elastic string 1 is inserted into one coupling hole 212a, and the other end that is pulled out is inserted into the other coupling hole 212a, and then the other end thereof is released again. It may be knotted or tied to a portion of the elastic string (1).

In addition, different elastic strings 1 are coupled to each coupling portion 212.

Hereinafter, in order to distinguish each housing and each rotating unit according to the first and second embodiments in the elastic string winding and unwinding devices of the first and second embodiments,

A reference numeral 10a of the housing according to the first embodiment is designated as 10A, and a reference numeral 10a of the housing according to the second embodiment is defined as

The reference numeral of the rotary unit according to the first embodiment is '20A', and the reference numeral of the rotary unit according to the second embodiment is '20B'.

In the elastic string winding and unwinding device of the first embodiment

As shown in FIG. 3,

The upper body 23 of the rotating unit 20A is formed with a locking portion 231 along the inner circumferential surface,

The housing 10A has upper and lower corresponding engaging portions 114 and 115 formed along the outer circumferential surface of the receiver 11.

That is, the upper corresponding catching portion 114 and the lower corresponding catching portion 115 are spaced apart vertically.

In this case, the upper corresponding catching part 114 has a proper distance from the lower corresponding catching part 115.

In this case, the proper separation distance refers to the rotation unit 20A to the extent that the engagement between the ratchet 113 and the corresponding ratchet 221 can be released when the rotation unit 20A is pulled from the housing 10A. ) Means the travel distance to rise.

Looking at the operating state of the elastic string winding and unwinding device of the first embodiment consisting of the above configuration,

First, the elastic string 1 has one end fixed to the attachment object 2 and the other end fixed to the engaging portion 212. As a result, the other end of the elastic string 1 is fitted into the insertion portion 121 of the body 12 and fixedly coupled to the coupling portion 212 of the pillar 21 via the accommodation space 111.

More specifically, the 'attachment object' is a shoe, the 'elastic string' corresponds to a shoelace,

In particular, the 'attachment object' is not limited to shoes, various items that require an operation such as winding or unwinding the elastic string in the article is required, the elastic string may be applicable,

Eventually, the two strands exposed by being tied to the shoe which is the attachment object 2 become two elastic strings 1.

The two elastic strings 1 have their other ends fixed to their respective coupling portions 212 (see Fig. 4).

When the latching portion 231 is caught by the lower corresponding catching portion 115, the ratchet 113 and the corresponding ratchet 221 mesh with each other to rotate the rotation unit 20A in one direction, and thus the pillar 21. In the two elastic strings 1 are pulled tightly (see Fig. 5a).

When the latching portion 231 is caught by the upper corresponding catching portion 114, the engagement between the ratchet 113 and the corresponding ratchet 221 is released, that is, the rotation unit 20A is held to hold the housing 10A. ), The locking unit 231 exits from the lower corresponding catching part 115 and is caught by the upper corresponding catching part 114 so that the rotating unit 20A is stopped, whereby each ratchet 113 And engagement of each corresponding ratchet 221 is released (see FIG. 5B).

Eventually, as the rotary unit 20A is forcibly rotated in the other direction by the elastic force of the wound elastic string 1, the elastic string 1 is automatically released from the pillar body 21. In this case, unwinding of the elastic string 1 means that the state is changed to a state in which the elastic string 1 is loosely wound and in a state of being loosely wound.

Therefore, by wrapping the two strands (two elastic string) of the shoelaces fixed to the respective coupling portion 212 to prevent the peeling when wearing the shoes, on the contrary by loosely loosening it is easy to take off or wear shoes.

In the elastic string winding and unwinding device of the second embodiment

As shown in FIG. 6 and FIG. 7,

The upper body 23 of the rotating unit 20B includes a plate 232 integrally formed on the pillar 21 with a plurality of different sub-ratchetes 232a radially arranged thereon, and each of the sub ratchets. It is made of a holding member 233 having a plurality of corresponding sub-latches 233a engaging with (232a) is formed along the inner circumferential surface 231 is arranged on the plate 232,

The housing 10B has upper and lower counterparts 114 and 115 formed along the outer circumferential surface of the receiver 11.

Looking at the operating state of the elastic string winding and unwinding device of the second embodiment consisting of the above configuration,

As in the first embodiment, the two elastic strings 1 have the other ends fixed to the respective coupling parts 212.

When the latching portion 231 is caught by the lower corresponding catching portion 115, the ratchet 113, the corresponding ratchet 221, the sub ratchet 232a, and the corresponding sub ratchet 233a are engaged with each other. When the rear holding member 233 rotates in one direction

As the corresponding sub ratchet 233a is caught by the sub ratchet 232a,
The pillar 21, the lower body 22, and the plate 232, which form a bundle, may also be rotated in one direction, so that the corresponding ratchet 221 may move over the ratchet 113. As a result, the elastic string 1 is wound around the pillar 21 (see FIG. 8A).

When the catching portion 231 is pulled out of the lower corresponding catching portion 115 and caught by the upper corresponding catching portion 115, the engagement between the sub ratchets 232a and the corresponding sub ratchets 233a is released.

The pillar 21, the lower body 22, and the plate 232 constituting one bundle are automatically raised by the elastic force of the wound elastic string 1, that is, by the force to be unwound, wherein each ratchet ( 113 is engaged with each corresponding ratchet 221.

The pillar 21, the lower body 22, and the plate 232, which are a bundle of interference that is eliminated upward and downward, are forcibly rotated by elastic force, so that the elastic string 1 is automatically released. That is, it is in a loosely wound state (see FIG. 8B).

On the other hand, in the elastic string winding and unwinding device of the first and second embodiments

As shown in Figures 1 and 6,

The mounting means 30

Fastening hole 31 formed in the central axis 112 of the container 11 of the housing,

A recess groove 32 is inserted into the center of the upper body 23 of the rotating unit and communicates with the center hole 211 of the pillar 21, but having a larger diameter than the center hole 211.

Bolt 33 is fastened to the fastening hole 31 and the head 331 is located in the seating groove (32)

.

At this time, in a state where the ratchet 113 and the corresponding ratchet 221 are engaged with each other,

The separation distance between the head 331 of the bolt 33 and the lower step 321 of the seating groove 32 preferably corresponds to the separation distance between the upper and lower corresponding engaging portions 114 and 115, which is the locking distance. This is to implement an operation in which the unit 231 is selectively caught by the upper and lower corresponding engaging portions 114 and 115 and stopped.

On the other hand, in the elastic string winding and unwinding device of the first and second embodiments

As shown in Figures 1 and 6,

Body 12 of the housing is formed on the circumference sewing wings 122 for coupling with the attachment object 2,

The sewing wing portion 122 is preferably made of soft.

Therefore, referring to Figure 9, the shoe attached to the object (2) and the sewing wings 122 are coupled to each other by sewing, it is possible to attach the winding and unwinding device of the present invention to the shoe.

On the other hand, in the elastic string winding and unwinding device of the first and second embodiments

As shown in FIG. 2, a cap C for covering the seating groove 32 and the bolt 33 may be further provided, and the cap C is attached to an upper portion of the upper body 23 by an adhesive or the like. .

In the above description of the present invention with reference to the accompanying drawings, a "elastic string winding and unwinding device having a specific shape and structure" mainly described, but the present invention can be variously modified and changed by those skilled in the art, such variations and Changes should be construed as falling within the protection scope of the present invention.

10, 10A, 10B: housing
11: receptor 111: receiving space
111a: open space portion 112: central axis
113: ratchet 113a: relay
114: upper corresponding catch portion 115: lower corresponding catch portion
12: body 121: insertion portion
122: sewing wings
20, 20A, 20B: Rotating Unit
21: pillar 211: central hall
212: coupling portion 212a: coupling hole
22: lower body 221: corresponding ratchet
23: upper body 231: locking part
232: plate 232a: sub ratchet
233: holding member 233a: counterpart ratchet
30: mounting means
31: Fastener 32: Seating groove
321: step 33: bolt
331: Head

Claims (4)

Receptor 11 having an upper opening-type receiving space 111 and a central axis 112 at the bottom thereof and a plurality of one-way ratchets 113 radially arranged thereon, and the receptor ( A housing (10, 10A) having an elastic string (1) insertion portion (121) connected to the receiving space portion (111) of the 11 and a body (12) formed at one side of the container (11); And
A pillar body 21 having an inner center hole 211 to be fitted to the central shaft 112 and an engaging portion 212 for fixing an end portion of an elastic string 1 on an outer circumferential surface thereof, and each ratchet 113. And a lower body 22 provided below the column body 21 and having a plurality of corresponding ratchets 221 engaged therewith, and an upper body 23 for gripping provided on the upper body 21. Rotating units (20, 20A) coupled to the housing (10, 10A) by the mounting means 30 to enable vertical movement;
Including but not limited to,
The upper body 23 of the rotating unit 20, 20A is formed with a locking portion 231 along the inner circumferential surface,
The housings 10 and 10A have upper and lower counterparts 114 and 115 formed along the outer circumferential surface of the receiver 11,
One end of the elastic string 1 is fixed to the attachment object 2 and the other end is fixed to the coupling part 212,
When the latching portion 231 is caught by the lower corresponding catching portion 115, the ratchet 113 and the corresponding ratchet 221 are engaged with each other to rotate the rotating unit 20, 20A in one direction. 21 is wound around the elastic string (1),
When the latching portion 231 is caught by the upper corresponding catching portion 114, the engagement of the respective ratchets 113 and the corresponding ratchets 221 is released, and the rotating unit is wound by the elastic force of the elastic string 1 wound. Elastic string winding and unwinding device, characterized in that the elastic string (1) is automatically released as 20, 20A) is forcibly rotated in the other direction.
Receptor 11 having an upper opening-type receiving space 111 and a central axis 112 at the bottom thereof and a plurality of one-way ratchets 113 radially arranged thereon, and the receptor ( A housing (10, 10B) having an elastic string (1) inserting portion (121) connected to the receiving space portion (111) of the 11 and a body (12) formed at one side of the container (11); And
A pillar body 21 having an inner center hole 211 to be fitted to the central shaft 112 and an engaging portion 212 for fixing an end portion of an elastic string 1 on an outer circumferential surface thereof, and each ratchet 113. And a lower body 22 provided below the column body 21 and having a plurality of corresponding ratchets 221 engaged therewith, and an upper body 23 for gripping provided on the upper body 21. Rotating units (20, 20B) coupled to the housing (10, 10B) by the mounting means 30 to enable vertical movement;
Including but not limited to,
The upper body 23 of the rotating unit (20, 20B) is a plate 232 having a plurality of radially arranged sub-ratchet (232a) on the top and integrally formed on the pillar 21, and the It consists of a holding member 233 having a plurality of corresponding sub-ratchet (233a) to be engaged with each sub-ratchet (232a) and the engaging portion 231 is formed along the inner circumferential surface and arranged on the plate 232,
The housings 10 and 10B have upper and lower corresponding engaging portions 114 and 115 formed along the outer circumferential surface of the receiver 11,
One end of the elastic string 1 is fixed to the attachment object 2 and the other end is fixed to the coupling part 212,
When the latching portion 231 is caught by the lower corresponding catching portion 115, the ratchet 113, the corresponding ratchet 221, the sub ratchet 232a, and the corresponding sub ratchet 233a are engaged with each other. When the rear holding member 233 rotates in one direction, the elastic string 1 is wound around the pillar 21.
When the catching part 231 is caught by the upper corresponding catching part 114, the engagement between the respective sub ratchets 232a and the corresponding sub ratchets 233a is released and the pillar body 21 forming one bundle is formed. The lower body 22 and the plate 232 are automatically lifted by the elastic force of the wound elastic string 1 and the engagement of the ratchet 113 and the corresponding ratchet 221 is also released, so that the pillar body 21 is removed. And the lower body 22 and the plate 232 are forcibly rotated in the other direction, so that the elastic string 1 is automatically released.
The method according to claim 1 or 2,
The body 12 of the housing is an elastic string winding and unwinding device, characterized in that the sewing wing portion 122 for coupling with the attachment object (2) is formed on the periphery.
The method according to claim 1 or 2,
An elastic string winding and unwinding device, characterized in that the body 12 of the housing and the pillar 21 of the rotating unit are respectively formed with two insertion portions 121 and two coupling portions 212.

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