Wire clamping device

Abstract

Provides a wire clamping device. [Solution] The present invention provides a wire tightening device in which a housing is seated and fixed on a lower cover, a reel is rotatably connected to the housing, and a rotating cover is positioned on the upper side of the reel, thereby protecting the wire from external impacts while facilitating the operation of tightening footwear by winding up the wire.

Description

[Technical Field]

[0001] The present invention relates to a wire tightening device, and more particularly to a wire tightening device that protects the wire from external impact while facilitating the operation of tightening footwear by winding up the wire. [Background technology]

[0002] To provide convenience when putting on and taking off shoes by applying a wire fastening device to sports shoes including hiking boots and athletic shoes, which allows the user to easily loosen or tighten shoelaces without having to tie them every time.

[0003] Inventions that have been made from the above-mentioned perspective include the "Shoelace Tightening Device" (hereinafter referred to as the prior art) of Korean Patent Registration No. 10-1833680.

[0004] The prior art is configured to use a ratchet gear to restrain a bobbin onto which a wire-shaped shoelace is wound with a stopper unit, and the wire can be tightened by rotating a rotating cover in one direction.

[0005] Furthermore, the prior art is configured with a structure in which, when the restrained state of the stopper unit that controls the ratchet is released, the bobbin becomes free to rotate, allowing the shoelace to be loosened.

[0006] However, the prior art required an unnecessary number of parts to be attached to the shoe upper, and the parts were small in size, requiring many man-hours for assembly and fastening. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Korean Patent Registration No. 10-1833680 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made to improve such problems, and its purpose is to provide a wire tightening device that protects the wire from external impact while facilitating the operation of tightening footwear by winding up the wire. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides a lower cover having a support plate fixed to an upper of a footwear, a support wall protruding from the upper surface of the support plate, and an accommodating groove recessed in the center of the support plate; a housing having a first body seated and fixed in the accommodating groove, a first ratchet gear formed along the inner circumferential surface of the upper end of the first body, and a plurality of first stoppers formed radially along the bottom surface of the first body; a second body rotatably inserted into the first body, and a wire tightening the footwear is wound by rotating through the housing, the first ratchet gear being formed along the outer circumferential surface of the upper end of the second body. a reel having a plurality of second stoppers that mesh with a ratchet gear to provide a restraining force that allows rotation in one direction and restricts rotation in the other direction, and a second ratchet gear that is formed in a ring shape on the lower end surface of the second body and meshes with the plurality of first stoppers to allow rotation in one direction and restrict rotation in the other direction; and a rotating cover that is disposed on the upper part of the second body and connected to the second body, and generates or releases a restraining force that allows rotation of the second body in one direction relative to the first body and restricts rotation in the other direction.

[0010] The support walls are formed to protrude from the upper surface of the support plate at a distance from each other so as to face each other.

[0011] In this case, the housing may further include at least one first locking projection protruding from the outer peripheral surface of the lower side of the first body and engaging with a first locking groove formed on one side of the bottom surface of the accommodating groove, and a second locking projection protruding from the outer peripheral surface of the lower side of the first body and engaging with a second locking groove formed on an inner surface of a protective stepped portion protruding from an edge of the accommodating groove and having an inner surface facing the outer peripheral surface of the first body.

[0012] The reel further includes a circular ring-shaped upper partition constituting the second body; a circular ring-shaped lower partition constituting the second body and having an opposing surface facing the upper partition; a cylindrical sleeve with open top and bottom ends constituting the second body, connecting inner edges of the upper and lower partitions to provide space and area for winding the wire; and a cap-shaped connecting protrusion protruding from the top surface of the upper partition and communicating with the sleeve, and the second ratchet gear is formed on the bottom surface of the lower partition.

[0013] The rotating cover further includes a plurality of radially arranged locking extension pieces protruding from the inner ceiling surface of the rotating cover; a hook rib protruding along the lower edge of the inner surface of each of the locking extension pieces and engaging with a connecting flange extending from the outer circumferential surface of the upper end of a connecting projection protruding from the upper surface of the second body; an extension rim bent downward and extending along the edge of the rotating cover; and a plurality of engaging ribs protruding from a distance along the lower edge of the inner surface of the extension rim and disposed in a space between the extension lever of the second stopper disposed above the upper partition of the second body and the upper partition, thereby locking the second body to the rotating cover. [Effects of the Invention]

[0014] According to the present invention having the above-described configuration, not only can the wire be protected from external impacts while the operation of tightening the footwear by winding it up can be easily performed, but by reducing the number of unnecessary parts and simplifying the structure compared to the prior art, the number of work steps required during mass production can be significantly reduced, thereby improving productivity and economy. [Brief explanation of the drawings]

[0015] [Figure 1-4] 1A to 1C are exploded perspective conceptual views showing the overall connection relationship of a wire clamping device according to an embodiment of the present invention as viewed from various viewpoints. [Figure 5] 1 is an exploded perspective conceptual view showing a detachable coupling structure of a housing and a reel, which are the main parts of a wire fastening device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] The advantages and features of the present invention, as well as the methods for achieving them, will become apparent from the following detailed description of the embodiments taken in conjunction with the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein.

[0017] The present invention is defined solely by the scope of the claims, and the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0018] Therefore, in some embodiments, known components, known operations, and known techniques are not specifically described to avoid obscuring the present invention.

[0019] Furthermore, the same reference numerals refer to the same elements throughout the specification, and the terminology used in the specification is intended to describe the embodiments only and is not intended to limit the present invention.

[0020] In this specification, the singular also includes the plural unless otherwise stated, and elements and operations described as "comprising" do not exclude the presence or addition of one or more other elements and operations.

[0021] Unless otherwise defined, all terms (including technical and scientific terms) used herein shall have the meaning commonly understood by one of ordinary skill in the art to which this invention belongs.

[0022] Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless otherwise defined.

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0024] First, FIGS. 1 to 4 are conceptual exploded perspective views showing the overall connection relationship of a wire fastening device according to one embodiment of the present invention as viewed from various viewpoints.

[0025] FIG. 5 is an exploded perspective conceptual view showing a detachable coupling structure between the housing 20 and the reel 30, which are the main parts of the wire fastening device according to one embodiment of the present invention.

[0026] As shown in Figures 1 to 4, the present invention can be applied to an embodiment of a structure in which a housing 20 is seated and fixed on a lower cover 10, a reel 30 is rotatably connected to the housing 20, and a rotating cover 40 is arranged on the upper side of the reel 30.

[0027] First, the lower cover 10 comprises a support plate 11 fixed to the upper of the footwear (not shown below), a support wall 12 protruding from the upper surface of the support plate 11, and a storage groove 13 recessed in the center of the support plate 11.

[0028] The housing 20 may also include a first main body 21 that is seated and fixed in the accommodating groove 13, a first ratchet gear 211 formed along the inner surface of the upper end of the first main body 21, and a plurality of first stoppers 24 formed radially along the bottom surface of the first main body 21.

[0029] The reel 30 may also include a second body 31 rotatably inserted into the first body 21 .

[0030] The reel 30 is also formed along the outer circumferential surface of the upper end of the second body 31, allowing the wire (not shown below) that tightens the shoe to rotate and be wound up through the housing 20, and may include a plurality of second stoppers 32 that mesh with the first ratchet gear 211 to provide a restraining force that allows rotation in one direction and restricts rotation in the other direction.

[0031] The reel 30 may also include a second ratchet gear 33 that is formed in a ring shape on the lower end surface of the second body 31 and that meshes with multiple first stoppers 24 to allow rotation in one direction and restrict rotation in the other direction.

[0032] In addition, the rotating cover 40 is disposed on the top of the second body 31 and is connected to the second body 31, and can serve to generate or release a restraining force that allows the second body 31 to rotate in one direction relative to the first body 21 and restricts rotation in the other direction.

[0033] It goes without saying that the present invention is applicable to the above-described embodiment, and also applicable to the following various embodiments.

[0034] First, the support walls 12 may be formed to protrude from the upper surface of the support plate 11 at a distance from each other.

[0035] Meanwhile, the housing 20 may further include at least one first locking protrusion 213 that protrudes from the outer peripheral surface of the lower side of the first body 21 and engages with a first locking groove 133 formed on one side of the bottom surface of the accommodating groove 13.

[0036] In addition, the housing 20 may further include a second locking protrusion 214 that protrudes from the outer peripheral surface of the lower side of the first body 21, protrudes from the edge of the accommodating groove 13, and engages with a second locking groove 144 formed on the inner surface of the protective step portion 14 that has an inner surface facing the outer peripheral surface of the first body 21.

[0037] In addition, the housing 20 may further include inlet ducts 22 that protrude from the outer circumferential surface of the first body 21 and are positioned on the outside of both side edges of the second locking protrusions 214, and that communicate with the internal space of the first body 21 and provide a path for inserting a wire for tying footwear.

[0038] In addition, the housing 20 may further include an external discharge slot 23 that penetrates the outer circumferential surface of the first body 21 and is disposed above the first locking protrusion 213 to provide a path for discharging the wire.

[0039] Here, it can be seen that the inlet duct 22 and the external discharge slot 23 communicate with the second body 31 .

[0040] Meanwhile, the lower cover 10 may further include a seating rib 15 that protrudes from the upper surface of the support plate 11 along the edge of the accommodating groove 13 so that the first body 21 is seated and fixed, and has an inner surface facing the outer peripheral surface of the first body 21.

[0041] In addition, the lower cover 10 may further include duct seating cutouts 152 formed on the outer sides of both side edges of the protective step portion 14, and formed by cutting out parts of the seating rib 15, on which the inlet duct 22 is seated.

[0042] Therefore, the first body 21 is tilted and inserted into the accommodating groove 13 so that the first locking protrusion 213 engages with the first locking groove 133 relative to the accommodating groove 13, and after the first locking protrusion 213 is engaged with the first locking groove 133, the second locking protrusion 214 is engaged with the second locking groove 144 formed on the inner surface of the protective step portion 14, thereby completing the seating and fixing of the first body 21 in the accommodating groove 13.

[0043] Meanwhile, the second body 31 may include a circular ring-shaped upper partition 311, a circular ring-shaped lower partition 312 having an opposing surface facing the upper partition 311, and a cylindrical sleeve 313 with openings at both top and bottom ends that interconnects the inner edges of the upper partition 311 and the lower partition 312 and provides space and area for winding the wire.

[0044] Here, the reel 30 may further include a cap-shaped connecting protrusion 314 that protrudes from the upper surface of the upper partition 311 and communicates with the sleeve 313 .

[0045] At this time, it can be seen that the second ratchet gear 33 is formed on the lower surface of the lower partition 312.

[0046] Meanwhile, the first stopper 24 may include a plurality of stopper slots 241 that are cut in an arc shape along the bottom edge of the first body 21 and arranged radially.

[0047] In addition, the first stopper 24 may include an extension piece 242 formed by extending in an arc shape from the edge of the tip end of each of the multiple stopper slots 241, including the tip end and end end of each of the multiple stopper slots 241.

[0048] In addition, the first stopper 24 may include wedge pieces 243 formed to protrude obliquely from the upper surface of the end portion of each extension piece 242 and engage with each of the teeth of the ring-shaped second ratchet gear 33.

[0049] Meanwhile, the reel 30 may further include a pair of inlet slots 3132 formed by cutting apart the outer circumferential surface of the sleeve 313, connected to the pair of inlet ducts 22, respectively, and into which the wire is inserted.

[0050] In addition, the reel 30 may further include an internal discharge slot 3133 formed by an incision on the outer circumferential surface of the sleeve 313, which is connected to the external discharge slot 23 and also communicates with the pair of inlet slots 3132, through which the wire is discharged.

[0051] The reel 30 may further include a connecting flange 34 extending from the outer circumferential surface of the upper end of the connecting protrusion 314 .

[0052] Here, it can be seen that the second stopper 32 is formed from a connecting flange 34 .

[0053] In this case, the second stopper 32 may include a plurality of extension connecting pieces 321 formed to protrude radially along the edge of the connecting flange 34 .

[0054] In addition, the second stopper 32 may include an extension lever 322 that is bent and extends from the end portion of each of the multiple extension connecting pieces 321, has an inner surface facing the edge surface of the connecting flange 34, and allows elastic deformation and restoration so that it can move toward or away from the connecting flange 34.

[0055] In addition, the second stopper 32 has an outer surface on which a wedge groove 3231 corresponding in shape to the teeth of the first ratchet gear 211 is formed so as to engage with the first ratchet gear 211, and may include an extended locking protrusion 323 protruding from the outer surface of the end of each extension lever 322.

[0056] Here, it can be understood that the leading end and trailing end of each extension lever 322 are sequentially arranged on an imaginary circle that interconnects the trailing ends of each extension connecting piece 321 .

[0057] Meanwhile, the reel 30 may further include a cylindrical stroke guide 35 formed to protrude from the inner ceiling surface of the connecting protrusion 314 toward the lower partition 312 side.

[0058] In addition, the reel 30 may further include a ring-shaped locking rib 351 formed to protrude along the inner circumferential surface of the lower end of the stroke guide 35 .

[0059] In addition, the reel 30 may further include elastic cutouts 352 that are cut from the lower end of the stroke guide 35 toward the upper end thereof to a predetermined width and length and are disposed opposite each other.

[0060] Meanwhile, the housing 20 may further include a stroke rod 25 that protrudes to a certain height from the bottom surface of the first body 21 and has an outer diameter smaller than that of the stroke guide 35, and a stroke locking piece 251 that protrudes from the outer circumferential surface of the upper end of the stroke rod 25 and is locked to the locking rib 351.

[0061] Meanwhile, the rotary cover 40 may further include a plurality of locking extension pieces 41 that are protruded from the inner ceiling surface of the rotary cover 40 and arranged radially.

[0062] In addition, the rotating cover 40 may further include a hook rib 411 that protrudes along the lower edge of the inner surface of each of the multiple locking extension pieces 41 and is locked to the connecting flange 34 extending from the outer peripheral surface of the upper end of the connecting protrusion 314 that protrudes from the upper surface of the second body 31.

[0063] The rotating cover 40 may further include an extension rim 42 that is bent downwardly along the edge of the rotating cover 40 .

[0064] In addition, the rotating cover 40 may further include a plurality of engagement ribs 421 that are formed to protrude at a distance along the lower edge of the inner surface of the extension rim 42 and are disposed in the space between the extension lever 322 of the second stopper 32, which is disposed at a distance upward from the upper partition 311 of the second body 31, and the upper partition 311, thereby enabling the second body 31 to be engaged with the rotating cover 40.

[0065] Therefore, when the stroke locking piece 251 is inserted through the lower end of the stroke guide 35, the width of the lower end of the elastic cutout portion 352 expands at the moment the stroke locking piece 251 passes the locking rib 351 and then returns to its original width, thereby completing the connection of the stroke rod 25 to the stroke guide 35.

[0066] Thereafter, when the lower end of the stroke guide 35 is in contact with or close to the bottom surface of the first body 21, only tightening operations by inserting and ejecting the wire are permitted, i.e., a state is maintained in which only one-way rotation of the second body 31 relative to the first body 21 is permitted.

[0067] Here, when the user wishes to loosen the tension of the wire in order to put on the footwear again, the user grasps the edge of the rotating cover 40 described below and pulls the second body 31 together with the rotating cover 40 in a direction that separates the second body 31 from the first body 21 that is fixedly seated on the lower cover 10, thereby releasing the connection between the first stopper 24 and the first ratchet gear 211, and the connection between the second stopper 32 and the second ratchet gear 33.

[0068] Therefore, when the mutual connection between the first stopper 24 and the second stopper 32 and the first ratchet gear 211 and the second ratchet gear 33 is released, not only rotation in one direction of the second body 31 relative to the first body 21 but also rotation in the other direction is permitted, making it possible to freely adjust the tension of the wire.

[0069] As described above, it can be seen that the basic technical idea of ​​the present invention is to provide a wire tightening device that protects the wire from external impact while facilitating the operation of tightening footwear by winding up the wire.

[0070] It goes without saying that many other modifications and applications are possible within the scope of the basic technical idea of ​​the present invention, if one skilled in the art would be able to make such modifications. [Explanation of symbols]

[0071] 10 Bottom cover 11 Support plate 12 Support wall 13 Storage groove 133 First locking groove 14 Protective step 144 Second locking groove 15 Seating rib 152 Duct seating incision 20. Housing 21 First Body 211 1st Ratchet Gear 213 1st locking protrusion 214 Second locking protrusion 22 Inlet duct 23 External ejection slot 24 First Stopper 241 Stopper slot 242 Extension piece 243 Wedge piece 25 stroke rod 251 Stroke locking piece 30 reels 31 Second Body 311 Upper septum 312 Lower partition 313 Sleeve 3132 Entrance Slot 3133 Internal ejection slot 314 Connecting protrusion 32 Second Stopper 321 Extension connection piece 322 Extension Lever 323 Extension locking protrusion 3231 Wedge groove 33 Second ratchet gear 34 Connecting flange 35 Stroke Guide 351 Locking rib 352 Elastic incision 40 Rotating Cover 41 Lock extension piece 411 Hook Rib 42 Extended Rim 421 Engagement rib

Claims

1. a lower cover having a support plate fixed to the upper of the footwear, a support wall protruding from an upper surface of the support plate, and an accommodation groove recessed in the center of the support plate; a housing including a first body seated and fixed in the receiving groove, a first ratchet gear formed along an inner peripheral surface of an upper end of the first body, and a plurality of first stoppers formed radially along a bottom surface of the first body; a reel having: a second body rotatably inserted into the first body; a plurality of second stoppers formed along the outer circumferential surface of the upper end of the second body, allowing the wire tightening the footwear to rotate and be wound through the housing, and meshing with the first ratchet gear to provide a restraining force allowing rotation in one direction and restricting rotation in the other direction; and a second ratchet gear formed in a ring shape on the lower end surface of the second body, meshing with the plurality of first stoppers to allow rotation in one direction and restrict rotation in the other direction; and a rotating cover disposed on the upper portion of the second body and coupled to the second body, the rotating cover generating or releasing a binding force that allows the second body to rotate in one direction relative to the first body and restricts the second body from rotating in the other direction; A wire tightening device comprising:

2. The wire clamping device according to claim 1, wherein the support walls are formed to protrude from an upper surface of the support plate at a distance from each other so as to face each other.

3. The housing includes: at least one first locking projection formed to protrude from an outer peripheral surface of a lower side of the first body and to be engaged with a first locking groove formed on one side of a bottom surface of the receiving groove; 2. The wire clamping device of claim 1, further comprising: a second locking projection formed to protrude from the outer peripheral surface of the lower side of the first body, protruding from the edge of the accommodating groove, and engaging with a second locking groove formed on the inner surface of a protective step portion having an inner surface facing the outer peripheral surface of the first body.

4. The reel is a disk-ring-shaped upper partition that constitutes the second body; a lower partition piece in the shape of a circular ring, the lower partition piece constituting the second body and having an opposing surface facing the upper partition piece; a cylindrical sleeve having openings at both top and bottom ends that constitutes the second body and connects the inner edges of the upper and lower partitions to each other and provides a space and area for winding the wire; a cap-shaped connecting projection formed on an upper surface of the upper partition and communicating with the sleeve, The wire clamping device according to claim 1, wherein the second ratchet gear is formed on a lower surface of the lower partition.

5. The rotating cover is a plurality of radially arranged locking extension pieces formed to protrude from an inner ceiling surface of the rotary cover; a hook rib protruding along a lower edge of an inner surface of each of the plurality of locking extension pieces and locked to a connecting flange formed by extending from an outer peripheral surface of an upper end of a connecting projection formed to protrude from the upper surface of the second body; an extension rim that is bent downward and extends along the edge of the rotary cover; 2. The wire clamping device of claim 1, further comprising: a plurality of engagement ribs formed along a lower edge of an inner surface of the extension rim at intervals and disposed in a space between the extension lever of the second stopper disposed at an upper distance from the upper partition of the second body and the upper partition, for engaging the second body with the rotating cover.

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