Fastening device

Abstract

The present invention provides a fastening device comprising a case, a spool, a knob, and a drive unit. The case includes a housing, a base, and a mounting portion. The housing includes a storage space, and the base is detachably connected to the housing. The mounting portion is located in the housing. The spool is accommodated within the storage space and configured to have a race wound around it. The knob includes a coupling portion corresponding to the mounting portion. The drive unit is accommodated within the storage space. Therefore, the ease of assembly of the fastening device can be improved by the structural configuration of the fastening device.

Description

Technology Field

[0001] The present invention relates to a fastening device and a method for assembling a lace. More specifically, the present invention relates to a fastening device and a method for assembling a lace that secures an article by releasing or tightening the lace. Background Technology

[0002] In everyday life, cords such as lace or thread are commonly used to tighten items. The most common tightening method involves using a cord to pass back and forth through a hole in an item, such as a shoe eyelet, and then tying a knot to secure the item. However, with this tightening method, the knot easily loosens under external force. This not only requires tying the knot again but also causes significant inconvenience due to the instability of the item.

[0003] To address these issues, some practitioners have developed a simple fastening mechanism comprising a case, a drive unit, and a spring. The case includes holes configured to allow a race to pass through. The race can be fastened by being sandwiched between the drive unit and the case through the reaction force between the spring and the drive unit. By pressing the spring to change the position of the drive unit, the length of the race can be changed. However, in this fastening mechanism, the restoring force of the spring acts as the locking force, and thus the race is easily released by vibration or external forces. Additionally, the fastening mechanism lacks space to accommodate the race, which can result in the race being exposed and potentially dangerous.

[0004] Therefore, some practitioners have developed a different type of buckle that can rotate to tighten the lace, and the lace can be accommodated inside the buckle. The length and tension of the lace can be adjusted through interference between the components inside the buckle. However, because the structure of such a buckle is complex, manufacturing costs increase, and there are difficulties in assembling and repairing the buckle. Additionally, if the lace breaks and needs to be replaced, there is a problem in that it is difficult to remove the lace and reassemble it. The problem to be solved

[0005] The present invention was devised to solve the problems of the aforementioned prior art and aims to provide a fastening device with an improved structure to enhance ease of assembly. means of solving the problem

[0006] A fastening device according to one embodiment of the present invention is applied to tighten or release a race and includes a case, a spool, a knob, and a locking unit. The case includes a housing, a base, and a mounted portion; the housing includes a storage space; the base is detachably connected to the housing; and the mounted portion is located on the housing. The spool is accommodated within the storage space and configured so that a race can be wound around it. The knob includes an engaged portion corresponding to the mounted portion. The locking unit is accommodated within the storage space. When the knob is rotated in a tensioning direction relative to the case, the spool is not affected by the locking unit, and the spool rotates in the tensioning direction to tighten the race.

[0007] According to the examples of the aforementioned fastening device, when the knob is rotated relative to the case in the release direction, the locking unit is switched from a first position to a second position along the axial direction, and when the locking unit is in the first position, the locking unit is coupled to the spool to prevent the spool from rotating in the release direction, and when the locking unit is in the second position, the spool can be rotated in the release direction.

[0008] According to the examples of the aforementioned fastening device, the locking unit may include a coupling disc and an internal gear, the coupling disc includes a central hole, the internal gear is movably positioned within the central hole, and when the knob is rotated relative to the case in the release direction, the internal gear is switched from a first position to a second position.

[0009] According to the examples of the aforementioned fastening device, the knob may include a screw post, and the screw post protrudes downward to engage with the screw hole of the internal gear, and when the knob is rotated relative to the case in the release direction, the screw hole is guided by the screw post, and the internal gear may be switched from a first position to a second position.

[0010] According to the examples of the aforementioned fastening device, the spool comprises a first opening, a second opening, and at least one sloped surface, and the first end of the race passes through the first opening toward at least one sloped surface.

[0011] According to the examples of the aforementioned fastening device, the number of at least one inclined surface is one, the first end of the race passes through the first opening toward the inclined surface, and the second end of the race passes through the second opening toward the inclined surface.

[0012] According to the examples of the aforementioned fastening device, the fastening device may further include a controlling set, the controlling set is inserted into a knob and coupled to a locking unit, and by pressing or applying pressure to the controlling set, the coupling between the locking unit and the spool is released, and the spool can rotate freely.

[0013] According to the examples of the aforementioned fastening devices, the control set may include two clamping arms, and the two clamping arms are coupled to a locking unit.

[0014] According to the examples of the aforementioned fastening devices, the control set may include a restricting member, a screw, and a bushing, the restricting member is inserted into a knob, the bushing is restricted within a locking unit, and the screw passes upward through the bushing and is screw-coupled to the restricting member.

[0015] According to the examples of the aforementioned fastening devices, the control set may include a control bar and a screw, the control bar is inserted into a knob, and the screw is confined within a locking unit and fastened to the control bar.

[0016] According to the examples of the aforementioned fastening devices, the locking unit may include at least one pawl arm, and the knob includes at least one protruding column, and when the knob rotates in the release direction, the at least one protruding column displaces at least one pawl arm.

[0017] According to the examples of the fastening device described above, the fastening device may further include a ratchet ring, and the case includes a plurality of inner gears, and the ratchet ring is disposed in the case and includes a plurality of lower inclined gears, a plurality of upper inclined gears and a plurality of ratchet gears, each lower inclined gear and each upper inclined gear are located on the outer surface of the ratchet ring, each lower inclined gear is located below each upper inclined gear to correspond to each inner gear, and each ratchet gear is located on the inner surface of the ratchet ring.

[0018] A race assembly method according to another embodiment of the present invention is applied to connect a race to a fastening device, and the race assembly method includes a step of providing a fastening device and a step of coupling a race. In the step of providing a fastening device, a fastening device is provided, and the fastening device includes a case, a spool, a knob, and a locking unit, the case includes a housing, a base, and a mounting portion, the base is detachably connected to the housing, the mounting portion is located in the housing, the knob includes a coupling portion for a corresponding mounting portion, and the spool and the locking unit are disposed inside the housing. In the step of coupling a race, a first end of the race and a second end of the race pass through the housing and the spool and are exposed from the housing, the first end and the second end form a knot, and the race can be coupled to the spool.

[0019] According to examples of race assembly methods, the case may further include two side holes, and the spool may include a first opening and at least one inclined surface, and the first end passes through either one of the side holes and the first opening toward at least one inclined surface.

[0020] According to examples of a race assembly method, the number of inclined surfaces may be one, and after the first end passes through one of the side holes and the first opening toward the inclined surface, the second end passes through the other of the side holes and the second opening toward the inclined surface. Effects of the invention

[0021] Therefore, the ease of assembly of the fastening device can be improved through the configuration of the fastening device. Brief explanation of the drawing

[0022] FIG. 1 is a schematic perspective view of a fastening device according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the fastening device of the first embodiment of FIG. 1. Figure 3 is another exploded perspective view of the fastening device of Figure 1. Figure 4 is a partial plan view of the fastening device of Figure 1. Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4. FIG. 6 is a schematic cross-sectional view of a fastening device according to a second embodiment of the present invention. FIG. 7 is a schematic exploded perspective view of a fastening device according to a third embodiment of the present invention. FIG. 8 is another exploded perspective view of the fastening device of the third embodiment of FIG. 7. FIG. 9 is a partial cross-sectional view of the fastening device of the third embodiment of FIG. 7 coupled to a race. FIG. 10 is a schematic exploded perspective view of a fastening device according to a fourth embodiment of the present invention. FIG. 11 is another exploded perspective view of the fastening device of the fourth embodiment of FIG. 10. FIG. 12 is a cross-sectional view of the fastening device of the fourth embodiment of FIG. 10. FIG. 13 is a schematic exploded perspective view of a fastening device according to the fifth embodiment of the present invention. FIG. 14 is another exploded perspective view of the fastening device of the fifth embodiment of FIG. 13. FIG. 15 is a cross-sectional view of the fastening device of the fifth embodiment of FIG. 13. FIG. 16 is a schematic exploded perspective view of a fastening device according to the sixth embodiment of the present invention. FIG. 17 is a cross-sectional view of the fastening device of the sixth embodiment of FIG. 16. FIG. 18 is a schematic exploded perspective view of a fastening device according to the seventh embodiment of the present invention. FIG. 19 is another exploded perspective view of the fastening device of the seventh embodiment of FIG. 18. FIG. 20 is a cross-sectional view of the fastening device of the seventh embodiment of FIG. 18. FIG. 21 is a schematic exploded perspective view of a fastening device according to the eighth embodiment of the present invention. FIG. 22 is a cross-sectional view of the fastening device of the eighth embodiment of FIG. 21. FIG. 23 is a schematic exploded perspective view of a fastening device according to the ninth embodiment of the present invention. FIG. 24 is another exploded perspective view of the fastening device of the ninth embodiment of FIG. 23. FIG. 25 is a cross-sectional view of the fastening device of the ninth embodiment of FIG. 23. FIG. 26 is a schematic cross-sectional view of a fastening device according to the 10th embodiment of the present invention. FIG. 27 is a schematic cross-sectional view of a fastening device according to the 11th embodiment of the present invention. FIG. 28 is a schematic cross-sectional view of a fastening device according to the 12th embodiment of the present invention. FIG. 29 is an exploded perspective view of a fastening device according to the 13th embodiment of the present invention. FIG. 30 is a partial plan view illustrating the state in which the fastening device of the 13th embodiment of FIG. 29 is coupled to a race. FIG. 31 is a cross-sectional view of the fastening device of the 13th embodiment of FIG. 29. FIG. 32 is a schematic cross-sectional view of a fastening device according to the 14th embodiment of the present invention. FIG. 33 is a schematic cross-sectional view of a fastening device according to the 15th embodiment of the present invention. FIG. 34 is a schematic exploded perspective view of a fastening device according to the 16th embodiment of the present invention. FIG. 35 is a cross-sectional view of the fastening device of the 16th embodiment of FIG. 34. FIG. 36 is a block flowchart of a race assembly method according to the 17th embodiment of the present invention. Specific details for implementing the invention

[0023] Embodiments are described together with the drawings. For clarity, some practical details are described below. However, it should be noted that the invention should not be limited by practical details. That is, practical details are unnecessary in some embodiments. Also, for the sake of simplification of the drawings, some conventional structures and components are briefly illustrated, and repeated components are given the same reference numerals.

[0024] Furthermore, in this specification, terms such as first, second, third, etc. are used to describe various components or elements, and such components or elements or elements should not be limited by such terms; therefore, the first element / component discussed below may be referred to as the second element / component. Additionally, the combination of such components / components / mechanisms / modules of the present invention is not a combination known, common, or ordinary in the art, and it cannot be predicted whether the combination relationship can be easily formed by a person skilled in the art to which these elements / components / mechanisms / modules belong.

[0025] Referring to FIGS. 1 to 5, FIG. 1 is a schematic perspective view of a fastening device (100c) according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of a fastening device (100c) according to the first embodiment of FIG. 1, FIG. 3 is another exploded perspective view of a fastening device (100c) according to the first embodiment of FIG. 1, FIG. 4 is a partial plan view of a fastening device (100c) according to the embodiment of FIG. 1, FIG. 5 is a cross-sectional view of a fastening device (100c) taken along line 5-5 of the embodiment of FIG. 1, where the knob (500c) is omitted in FIG. 4, and the first bias projection (520c) and the second bias projection (530c) are shown as dotted lines. A fastening device (100c) is applied to tighten or release a race (not shown in FIGS. 1 to 5), and the fastening device (100c) includes a case (200c), a spool (300c), a knob (500c), and a locking unit (400c).

[0026] The case (200c) includes a housing (260c), a base (270c), and a mounting portion (250c). The housing (260c) includes a storage space (210c), the base (270c) is detachably connected to the housing (260c), and the mounting portion (250c) is positioned on the housing (260c). A spool (300c) is received within the storage space (210c) and configured so that a race can be wound around it. A knob (500c) includes a coupling portion (540c) corresponding to the mounting portion (250c). A locking unit (400c) is received within the storage space (210c).

[0027] Therefore, the ease of assembly of the fastening device (100c) can be improved through the configuration of the fastening device (100c).

[0028] The housing (260c) is ring-shaped and has a storage space (210c) formed therein, and the housing (260c) may further include a plurality of internal gears (230c), two side holes (220c), and three taps (261c, 262c, 263c). The internal gear (230c) faces the storage space (210c), and the two side holes (220c) communicate with the storage space (210c). The mounting portion (250c) protrudes outward from the main body of the housing (260c) and is ring-shaped, and the three taps (261c, 262c, 263c) are located below the mounting portion (250c) and protrude radially and outward. The base (270c) may further include three holes (271c, 272c, 273c) that are respectively coupled to three taps (261c, 262c, 263c), so that the base (270c) and the housing (260c) can be assembled. Additionally, the base (270c) may include a guide groove (274c) positioned over the hole (273c) to guide the tap (263c), but is not limited thereto.

[0029] The knob (500c) may include a protruding column (510c), three first bias protrusions (520c), and three second bias protrusions (530c), and the protruding column (510c), three first bias protrusions (520c), and three second bias protrusions (530c) all protrude downward from the inner upper surface of the knob (500c). The protruding column (510c) is located in the center, and the three first bias protrusions (520c) and three second bias protrusions (530c) alternately surround the protruding column (510c).

[0030] The locking unit (400c) includes a coupling disc (410c) and an internal gear (450c), the coupling disc (410c) includes a central hole (412c) and a plurality of transmission gears (411c), the internal gear (450c) is movably positioned inside the central hole (412c) and includes an insertion hole (452c) and a plurality of external gears (451c), the insertion hole (452c) is for receiving a protruding column (510c), and the external gears (451c) are coupled to correspond to the transmission gears (411c) and coupling gears (330c) of the spool (300c).

[0031] The locking unit (400c) may further include three first pawl arms (430c) and three second pawl arms (440c) extending outwardly from the coupling disk (410c), and the three first pawl arms (430c) and the three second pawl arms (440c) all correspond to an internal gear (230c), and as shown in FIG. 4, when the knob (500c) is rotated in the first direction (A3), each first bias projection (520c) displaces each first pawl arm (430c) in the first direction (A3) so that the spool (300c) gradually pulls the race, and conversely, when the knob (500c) is rotated in the second direction (A4), each second bias projection (530c) displaces each second pawl arm (440c) to the second The spool (300c) is displaced in the direction (A4) to gradually release the race. In other embodiments, the fastening device may be configured to release the race by rotating the knob in a first direction and to tighten the race by rotating the knob in a second direction, but the invention is not limited thereto.

[0032] Referring to FIG. 6, FIG. 6 is a schematic cross-sectional view of a fastening device (100d) according to a second embodiment of the present invention. The fastening device (100d) includes a case (200d), a spool (300d), a locking unit (not shown in FIG. 6), and a knob (500d). Specifically, the fastening device (100d) is composed of a case (200d), a spool (300d), a locking unit, and a knob (500d). The structure of the fastening device (100d) of this embodiment is similar to the structure of the fastening device (100c) of the first embodiment of FIG. 1 to 5, and the locking unit may also include a locking disc (410d) and an internal gear (450d), but the detailed structure of the coupling disc (410d) and the knob (500d) is different from that and is not repeated.

[0033] Referring to FIGS. 7 through 9, FIG. 7 is a schematic exploded perspective view of a fastening device (100e) according to a third embodiment of the present invention, FIG. 8 is another exploded perspective view of a fastening device (100e) according to a third embodiment of the present invention, and FIG. 9 is a partial cross-sectional view showing the state in which the fastening device (100e) according to the third embodiment of FIG. 7 is coupled to a race (T1). A base (270e) is omitted for clarity. The fastening device (100e) may include a case (200e), a spool (300e), a locking unit (400e), a knob (500e), a ratchet ring (800e), and a spring (700e).

[0034] The case (200e) includes a base (270e) and a housing (260e). The housing (260e) includes two side holes (220e) and three tabs (261e, 262e, 263e), and the base (270e) may further include a continuous wall (274e) and three holes (271e, 272e, 273e), and the three tabs (261e, 262e, 263e) each combine with the three holes (271e, 272e, 273e) so that the base (270e) is coupled to the housing (260e).

[0035] The spool (300e) has a disc-shaped structure and includes a first opening (321e), a second opening (not shown), an inclined surface (316e), and a bottom opening (315e), and the first opening (321e) and the second opening are in communication with the bottom opening (315e). The first end and the second end of the race (T1) are coupled to the spool (300e) by passing through the first opening (321e) and the second opening, respectively, so that the race (T1) can be wound around the spool cylinder of the spool (300e). More specifically, the first end of the lace (T1) can be inserted from the first opening (321e) toward the inclined surface (316e), pass through the bottom opening (315e), and be exposed from the lower opening (240e), and the second end of the lace (T1) can be inserted from the second opening toward the inclined surface (316e), pass through the bottom opening (315e), and be exposed from the lower opening (240e), so that the user can tie a knot, so that the lace (T1) is not separated from the first opening (315e) and the second opening, and then the base (270e) can be assembled to the housing (260e).

[0036] The knob (500e) may include a rotating cover (530e) and an inner plate (510e), and the inner plate (510e) is coupled to the rotating cover (530e). A locking unit (400e) is coupled to the knob (500e) and a spool (300e), a ratchet ring (800e) is placed inside the housing (260e), and a spring (700e) is placed on top of the ratchet ring (800e) to wrap around the inner plate (510e).

[0037] Specifically, the ratchet ring (800e) comprises a plurality of lower inclined gears (810e), a plurality of upper inclined gears (820e), and a plurality of ratchet gears (830e), wherein the lower inclined gears (810e) and the upper inclined gears (820e) are located on the outer surface of the ratchet ring (800e), each lower inclined gear (810e) is located below each upper inclined gear (820e) so as to correspond to each inner gear (230e), and each ratchet gear (830e) is located on the inner surface of the ratchet ring (800e).

[0038] The locking unit (400e) is located inside the ratchet ring (800e) and includes a coupling disk (410e), an inner gear (450e), a plurality of coupling gears (460e) and three pawl arms (470e). The inner gear (450e) is located inside the coupling disk (410e), and the inner gear (450e) can move along the axial direction relative to the coupling disk (410e) and includes a screw hole (451e). The coupling gear (460e) is located on the inner gear (450e) and is detachably coupled to the coupling gear (330e), and the three pawl arms (470e) are positioned on the coupling disk (410e) and correspond to the ratchet gear (830e).

[0039] The knob (500e) may further include a guide block (520e) corresponding to an upper inclined gear (820e) located on the inner wall of the rotating cover (530e), and the inner plate (510e) may further include a screw post (511e) and a coupling arm (512e), the screw post (511e) is coupled to correspond to the screw hole (451e), and the coupling arm (512e) is optionally coupled to the coupling projection (411e) of the coupling disk (410e).

[0040] With this configuration, when the rotating cover (530e) is rotated in the tightening direction, the pawl arm (470e) is disengaged from the ratchet gear (830e), and the spool (300e) tightens the race (T1). Conversely, when the rotating cover (530e) is not pressed and is rotated in the release direction, the internal gear (450e) is raised by the screw post (511e) relative to the coupling disk (410e), the internal gear (450e) and the coupling gear (330e) are separated, and the spool (300e) rotates freely in the release direction without restriction to release the race (T1). When the rotating cover (530e) is pressed and rotated in the release direction, the upper inclined gear (820e) is guided by the guide block (520e), and the ratchet ring (800e) is raised to disengage the lower inclined gear (810e) from the inner gear (230e), thereby gradually releasing the race (T1).

[0041] Additionally, the knob (500e) may include a coupling part (540e) corresponding to the mounting part (250e) of the case (200e), and since the details are the same as the coupling part (540c) and mounting part (250c) of the first embodiment of FIGS. 1 to 5, they are not repeated.

[0042] Referring to FIGS. 10 to 12, FIG. 10 is a schematic exploded perspective view of a fastening device (100f) according to a fourth embodiment of the present invention, FIG. 11 is another exploded perspective view of the fastening device (100f) of the fourth embodiment of FIG. 10, and FIG. 12 is a cross-sectional view of the fastening device (100f) of the fourth embodiment of FIG. 10. The fastening device (100f) includes a case (200f), a spool (300f), a knob (500f), a ratchet ring (800f), and a spring (700f), and the case (200f) includes a housing (260f) and a base (270f).

[0043] When the knob (500f) is rotated in the tightening direction relative to the case (200f), the ratchet ring (800f) is continuously raised and disengaged from the internal gear (230f), and the spool (300f) is rotated in the tightening direction to tighten the race. When the knob (500f) is pressed and simultaneously rotated in the release direction relative to the case (200f), the spool (300f) is rotated in the release direction to gradually release the race. Thus, it is evident that the ratchet ring (800f) of the fourth embodiment can function as a locking unit capable of stopping or releasing the spool (300f).

[0044] Referring to FIGS. 13 to 15, FIG. 13 is a schematic exploded perspective view of a fastening device (100g) according to a fifth embodiment of the present invention, FIG. 14 is another exploded perspective view of the fastening device (100g) of the fifth embodiment of FIG. 13, and FIG. 15 is a cross-sectional view of the fastening device (100g) of the fifth embodiment of FIG. 13. The fastening device (100g) includes a case (200g), a spool (300g), a locking unit (400g), a knob (500g), and a ratchet ring (800g), and the case (200g) includes a housing (260g) and a base (270g).

[0045] The locking unit (400g) includes a coupling disc (410g) and an internal gear (450g), and the internal gear (450g) is movably positioned inside the coupling disc (410g). The knob (500g) includes a plurality of top gears (520g) and a screw post (510g), and the screw post (510g) is coupled to a screw hole (451g) of the internal gear (450g). The ratchet ring (800g) includes three first arms (810g), three second arms (820g), and a plurality of ratchet gears (830g). The first arm (810g) corresponds to an internal gear (230g) on ​​the housing (260g), and the second arm (820g) corresponds to both the internal gear (230g) and the top gear (520g). The pole arm (470g) of the locking unit (400g) is optionally coupled to the ratchet gear (830g).

[0046] When the knob (500g) receives force in the tightening direction, the second arm (820g) is disengaged from the top gear (520g), and as the knob (500g) rotates in the tightening direction, the coupling disc (410g) is driven by the knob (500g), causing the pawl arm (470g) to be disengaged from the ratchet gear (830g).

[0047] When the knob (500g) receives force in the release direction, the internal gear (450g) can be raised and separated from the spool (300g) due to the structure of the screw post (510g) and the screw hole (451g).

[0048] Referring to FIGS. 16 and FIGS. 17, FIG. 16 is a schematic exploded perspective view of a fastening device (100h) according to a sixth embodiment of the present invention, and FIG. 17 is a cross-sectional view of the fastening device (100h) of the sixth embodiment of FIG. 16. The fastening device (100h) includes a case (200h), a spool (300h), a locking unit (400h), a control set (900h), a knob (500h), and a spring (700h), and the case (200h) includes a housing (260h) and a base (270h).

[0049] The spool (300h) is coupled to the knob (500h) and includes a plurality of first pole gears (310h), and both the spool (300h) and the locking unit (400h) are located inside the housing (260h).

[0050] The locking unit (400h) is located below the spool (300h) and includes a plurality of second pole gears (410h) that are optionally coupled with the first pole gear (310h). The control set (900h) is movably inserted into the knob (500h), and the spring (700h) contacts the bottom surface of the housing (260h) and the locking unit (400h).

[0051] When the control set (900h) is in the fastening position, the flange (911h) is positioned over the limiting portion (515h) of the knob (500h), and the spring (700h) is not compressed, at which time the second pole gear (410h) is coupled to the first pole gear (310h) in the release direction. When the control set (900h) is pressed downward and switched to the release position, the flange (911h) is positioned below the limiting portion (515h), the spring (700h) is compressed, the locking unit (400h) is separated from the spool (300h), and the second pole gear (410h) can be completely separated from the first pole gear (310h).

[0052] Referring to FIGS. 18 to 20, FIG. 18 is a schematic exploded perspective view of a fastening device (100i) according to a seventh embodiment of the present invention, FIG. 19 is another exploded perspective view of the fastening device (100i) of the seventh embodiment of FIG. 18, and FIG. 20 is a cross-sectional view of the fastening device (100i) of the seventh embodiment of FIG. 18. The fastening device (100i) includes a case (200i), a spool (300i), a locking unit (400i), a knob (500i), a control set (900i), and a spring (700i), and the case (200i) includes a housing (260i) and a base (270i).

[0053] The control set (900i) includes a control bar (910i) and a screw (920i), the control bar (910i) is inserted into a knob (500i), and the screw (920i) is limited by a locking unit (400i) and screw-coupled to the control bar (910i). The locking unit (400i) may include a plurality of second teeth (410i) and a plurality of first ratchet gears (420i), the second gears (410i) are coupled to the first gears (310i) of the spool (300i), and the first ratchet gears (420i) are optionally coupled to the second pole gears (261i) on the housing (260i).

[0054] When the control set (900i) is in the fastening position, the flange (911i) is positioned below the limiting portion of the knob (500i), the spring (700i) is not compressed, at this time the locking unit (400i) is in a lower position, and the spool (300i) can be rotated in the tightening direction, but rotation in the release direction is not allowed. When the control set (900i) is pulled upward to switch to the release position, the flange (911i) is positioned above the limiting portion, the spring (700i) is compressed, at this time the locking unit (400i) is raised, the first ratchet gear (420i) is disengaged from the second pawl gear (261i), and the spool (300i) can be fully released.

[0055] Referring to FIGS. 21 and FIGS. 22, FIG. 21 is a schematic exploded perspective view of a fastening device (100j) according to the eighth embodiment of the present invention, and FIG. 22 is a cross-sectional view of the fastening device (100j) of the eighth embodiment of FIG. 21. The fastening device (100j) includes a case (200j), a spool (300j), a locking unit (400j), a control set (900j), and a knob (500j), and the case (200j) includes a housing (260j) and a base (270j).

[0056] The control set (900j) includes a control bar (910j) and a screw (920j), and when the control set (900j) is pulled upward, the locking unit (400j) is raised and completely separated from the internal gear (230j).

[0057] Referring to FIGS. 23 to 25, FIG. 23 is a schematic exploded perspective view of a fastening device (100k) according to a ninth embodiment of the present invention, FIG. 24 is another exploded perspective view of the fastening device (100k) of the ninth embodiment of FIG. 23, and FIG. 25 is a cross-sectional view of the fastening device (100k) of the ninth embodiment of FIG. 23. The fastening device (100k) includes a case (200k), a spool (300k), a locking unit (400k), a control set (900k), and a knob (500k), and the case (200k) includes a housing (260k) and a base (270k).

[0058] The knob (500k) may include two guide protrusions (510k) located on the outer upper surface of the knob (500k). The control set (900k) may be inserted into the knob (500k) and includes two tracking grooves (910k) corresponding to each of the two guide protrusions (510k), each guide protrusion (510k) being spiral and having a high point and a low point, and the shape of the tracking groove (910k) corresponds to the guide protrusion (510k).

[0059] The case (200k) includes a housing pawl arm (280k) located in the housing (260k), and the locking unit (400k) includes a plurality of side gears (410k) corresponding to the housing pawl arm (280k). The control set (900k) is coupled to the locking unit (400k) by two clamping arms (920k). When the control set (900k) is rotated relative to the knob (500k) to switch to a higher position, the locking unit (400k) is raised so that the race can be fully released.

[0060] Referring to FIG. 26, FIG. 26 illustrates a cross-sectional view of a fastening device (100l) according to the 10th embodiment of the present invention. The fastening device (100l) includes a case (200l), a spool (300l), a locking unit (400l), a control set (900l), and a knob (500l).

[0061] The control set (900l) may include a limiting member (910l), a screw (920l), and a barrel (930l). The limiting member (910l) is inserted into the knob (500l), the barrel (930l) passes upward through the locking unit (400l) and is limited within the locking unit (400l), and the screw (920l) penetrates downward through the limiting member (910l) and is screw-coupled to the barrel (930l). When the control set (900l) is pulled upward, the locking unit (400l) is raised. Additionally, the limiting member (910l) may include a flange similar to the flange (911h) of the eighth embodiment of FIG. 20, but the present invention is not limited thereto.

[0062] Referring to FIG. 27, FIG. 27 is a schematic cross-sectional view of a fastening device (100m) according to the 11th embodiment of the present invention. The fastening device (100m) is similar to the fastening device (100l) of the 10th embodiment of FIG. 26 and includes a case (200m), a spool (300m), a locking unit (400m), a control set (900m), and a knob (500m), but the control set (900m) and the locking unit (400m) are different from the control set (900l) and the locking unit (400l) of the aforementioned embodiment.

[0063] More specifically, the control set (900m) may include a limiting member (910m), a screw (920m), and a bushing (930m), the limiting member (910m) is inserted into a knob (500m), the bushing (930m) is limited within a locking unit (400m), and the screw (920m) penetrates the bushing (930m) upward and is screw-coupled to the limiting member (910m). The locking unit (400m) includes a coupling disc (410m) and an internal gear (450m), and when the control set (900m) is pulled upward, the internal gear (450m) rises. Additionally, the limiting member (910m) may include a flange similar to the flange (911h) of the eighth embodiment of FIG. 20, but the present invention is not limited thereto.

[0064] Referring to FIG. 28, FIG. 28 illustrates a cross-sectional view of a fastening device (100n) according to the 12th embodiment of the present invention. The fastening device (100n) includes a case (200n), a spool (300n), a locking unit (400n), and a knob (500n).

[0065] The locking unit (400n) includes a coupling disc (410n) and an internal gear (450n), and the knob (500n) includes a screw post (510n) coupled to the internal gear (450n). When the knob (500n) is rotated in the release direction, the internal gear (450n) can be raised and separated from the spool (300n).

[0066] Referring to FIGS. 29 to 31, FIG. 29 is a schematic exploded perspective view of a fastening device (100p) according to a 13th embodiment of the present invention, FIG. 30 is a partial plan view of the fastening device (100p) of the 13th embodiment of FIG. 19 coupled to a race (T1), and FIG. 31 is a cross-sectional view of the fastening device (100p) of the 13th embodiment of FIG. 29. The fastening device (100p) includes a case (200p), a spool (300p), a locking unit (400p), a knob (500p), and a control set (900p), and the case (200p) includes a housing (260p) and a base (270p).

[0067] The control set (900p) includes two clamping arms (920p) coupled to the locking unit (400p), and the locking unit (400p) can be raised by pulling the control set (900p) upward.

[0068] The housing (260p) may include three side holes (220p), and the spool (300p) may include a first opening (321p), a second opening (322p), and a third opening (323p). When coupling the race (T1), the first opening (321p), the second opening (322p), and the third opening (323p) of the spool (300p) correspond to the three side holes (220p), and the race (T1) can pass through there. Specifically, the first end of the race (T1) can pass through the first of the side holes (220p) and the first opening (321p) and exit through the third opening (323p) and the third of the side holes (220p), and the second end of the race (T1) can pass through the second of the side holes (220p) and the second opening (322p) and exit through the third opening (323p) and the third of the side holes (220p) and be tied to be coupled to the spool (300p).

[0069] Referring to FIG. 32, FIG. 32 is a cross-sectional view of a fastening device (100q) according to the 14th embodiment of the present invention. The fastening device (100q) includes a case (not shown in FIG. 32), a spool (300q), a locking unit (400q), a knob (500q), and a control set (900q).

[0070] The fastening device (100q) is similar to the fastening device (100m) of the 11th embodiment of FIG. 27, but the locking unit (400q) includes a pawl arm (470q) that is coupled to an internal gear (230q) on the housing (260q), and a detailed description is omitted.

[0071] Referring to FIG. 33, FIG. 33 is a cross-sectional view of a fastening device (100r) according to the 15th embodiment of the present invention. The fastening device (100r) includes a case (not shown in FIG. 33), a spool (300r), a locking unit (400r), and a knob (500r). The fastening device (100r) is similar to the fastening device (100n) of the 12th embodiment of FIG. 28, but the locking unit (400r) includes a plurality of pawl arms (470r) that are coupled to an internal gear (230r) of a housing (260r), and a detailed description is omitted.

[0072] Referring to FIGS. 34 and FIGS. 35, FIG. 34 is an exploded perspective view of a fastening device (100s) according to the 16th embodiment of the present invention, and FIG. 35 is a cross-sectional view of the fastening device (100s) of the 16th embodiment of FIG. 34. The fastening device (100s) includes a case (200s), a spool (300s), a locking unit (400s), and a knob (500s), and the case (200s) includes a housing (260s) and a base (270s).

[0073] The locking unit (400s) includes a coupling disc (410s) and an internal gear (450s). The internal gear (450s) is located within the central hole of the coupling disc (410s), and three guide portions (430s) extend radially and outwardly from the internal gear (450s). The knob (500s) includes a spiral track (530s) corresponding to the guide portions (430s). Thus, when the knob (500s) is rotated, the internal gear (450s) can be raised, so that the locking unit (400s) can be disengaged from the spool (300s).

[0074] Based on the above-described embodiment, the locking unit may be a single element or two elements including a coupling disc and an internal gear, and when the locking unit is two elements, one of the two elements may be raised. A pawl arm may be positioned on the locking unit while a corresponding gear is positioned on the housing, or a pawl arm may be positioned on the housing while a corresponding gear is positioned on the locking unit. The knob and the housing may be joined by meshing, and after the knob is joined to the housing, the housing, the locking unit, the knob, and the spool are joined and restricted, at which point the base may still be separated from the housing, but the connection between the other elements is not affected, because the base is only restricted by the housing.

[0075] Referring to FIG. 36 and FIG. 7 through 9, FIG. 36 is a block flowchart of a race assembly method (100) according to the 17th embodiment of the present invention. The race assembly method (100) is applied to connect a race (T1) to a fastening device (100e), and the race assembly method (100) includes a fastening device providing step (S01) and a race coupling step (S02).

[0076] In the step of providing a fastening device (S01), a fastening device (100e) is provided, and the fastening device (100e) includes a case (200e), a spool (300e), a knob (500e), and a locking unit (400e). The case (200e) includes a housing (260e), a base (270e), and a mounting portion (250e). The base (270e) is detachably connected to the housing (260e), the mounting portion (250e) is located in the housing (260e), the knob (500e) includes a coupling portion (540e) corresponding to the mounting portion (250e), and the spool (300e) and the locking unit (400e) are disposed inside the housing (260e).

[0077] In the race coupling step (S02), the first end and the second end of the race (T1) pass through the housing (260e) and the spool (3003) and are exposed from the housing (260e), the first end and the second end are knotted, and the race (T1) can be coupled to the spool (300e).

[0078] The case (200e) may further include two side holes (220e), and the spool (300e) includes a first opening (321e) and at least one inclined surface (316e), and the first end of the race (T1) passes through one of the side holes (220e) and the first opening (321e) toward at least one inclined surface (361e). As shown in FIG. 9, there may be one inclined surface (361e), and after the first end of the race (T1) passes through either of the side holes (220e) and the first opening (321e) toward the inclined surface (316e), the second end of the race (T1) passes through the other of the side holes (220e) and the second opening toward the inclined surface (316e).

[0079] Finally, after the race (T1) is coupled to the spool (300e), the base (270e) is connected to the housing (260e), thereby completing the assembly.

[0080] Although the present invention has been described as above, the present invention is not limited thereto, and since anyone with ordinary knowledge in the technical field to which the present invention pertains can make modifications and changes within the scope of the present invention, the scope of protection of the present invention falls within the scope of protection of the following claims. Explanation of the symbols

[0081] 100: How to assemble the lace 100c,100d,100e,100f,100g,100h,100i,100j,100k,100l,100m,100n,100p,100q,100r,100s: Fastening device 200c,200d,200e,200f,200g,200h,200i,200j,200k,200l,200m,200n,200p,200s: Case 210c: Storage space 220c,220e,220p: Side holes 230c,230e,230f,230g,230j,230q,230r: Internal gear 240e: Lower opening 250c, 250e: Mounting part 260c,260e,260f,260g,260h,260i,260j,260k,260p,260q,260r,260s: Housing 261c,262c,263c,261e,262e,263e: tab 270c,270e,270f,270g,270h,270i,270j,270k,270p,270s: Base 271c,272c,273c,271e,272e,273e: hole 274c: Guide groove 274e: Continuous wall 280k: Housing Pole Arm 300c,300d,300e,300f,300g,300h,300i,300j,300k,300l,300m,300n,300p,300q,300r,300s: Spool 310h: 1st pole gear 310i: 1st gear 315e: Floor opening 316e : Inclined surface 321e,321p: First opening 322p: The second opening 323p: The third opening 330c, 330e: Interlocking gears 400c,400e,400g,400h,400i,400j,400k,400l,400m,400n,400p,400q,400r,400s: Locking Unit 410c,410d,410e,410g,410m,410n,410s: Combined disk 410h,261i: Second pole gear 410i: 2nd gear 410k: Side gear 411c: Transmission gear 411e : Coupling projection 412c: Center hole 420i: 1st ratchet gear 430c: 1st pole arm 430s : Guide section 440c: Second pole arm 450c, 450d, 450e, 450g, 450m, 450n, 450s: Internal gear 451c: External gear 451e, 451g: Screw hole 452c: Insertion hole 460e: Coupling gear 470e,470g,470q,470r: Pole arm 500c, 500d, 500e, 500f, 500g, 500h, 500i, 500j, 500k, 500l, 500m, 500n, 500p, 500q, 500r, 500s: Knob 510c: Projecting column 510e: Inner plate 510g, 510n, 511e: Screw post 510k: Guide protrusion 512e: Coupling arm 515h: Restriction 520c: 1st bias projection 520e: Guide block 520g: Top Chicha 530c : 2nd bias projection 530e: Rotating cover 530s: Spiral track 540c, 540e: Joint 700e, 700f, 700h, 700i: Spring 800e, 800f, 800g: Ratchet Ring 810e: Lower inclined gear 810g: 1st arm 820e: Upper inclined gear 820g: 2nd arm 830e, 830g: Ratchet Chicha 900h,900i,900j,900k,900l,900m,900p,900q: Control set 910i,910j: Control bar 910k: Trekking Groove 910l,910m: Restriction member 911h,911i: Flange 920i,920j,920l,920m: Screw 920k,920p: Clamping arm 930l: Barrel 930m: Bushing A3: First direction A4: Second direction S01: Step of providing a fastening device S02: Lace coupling stage T1: Wraith

Claims

Claim 1 A fastening device for tightening or releasing a lace, comprising: a case having a storage space; a spool configured to be received within the storage space and around which the lace can be wound; a knob positioned on the case; and a locking unit received within the storage space; wherein when the knob is rotated in a tensioning direction relative to the case, the spool can be rotated in a tensioning direction to tighten the lace without being affected by the locking unit, and when the knob is actuated and the spool is released from the locking unit, the spool can be rotated in a release direction to release the lace. Claim 2 In claim 1, the locking unit comprises: a coupling disc having a central hole; and a fastening device having an internal gear located within the central hole. Claim 3 A fastening device in claim 2, wherein the inner gear has a plurality of coupling gears and the spool has a plurality of coupling gears corresponding to the coupling gears, and when the knob is rotated relative to the case in the release direction, the inner gear is raised and the coupling gears are separated from the coupling gears. Claim 4 A fastening device in claim 3, wherein the knob comprises a screw post, the screw post protrudes downward and engages with a screw hole of the inner gear, and when the knob is rotated in a release direction relative to the case, the screw hole is guided by the screw post and the inner gear is raised and separated from the spool. Claim 5 A fastening device in claim 1, wherein the spool comprises a first opening, a second opening and at least one inclined surface, and the first end of the race passes through the first opening toward the at least one inclined surface. Claim 6 A fastening device in claim 5, wherein the at least one inclined surface is one, the first end of the race passes through the first opening toward the inclined surface, and the second end of the race passes through the second opening toward the inclined surface. Claim 7 A fastening device according to claim 1, wherein the locking unit comprises at least one pawl arm, the knob comprises at least one protruding column, and when the knob is rotated in a release direction, the at least one protruding column displaces the at least one pawl arm. Claim 8 A fastening device according to claim 1, further comprising a ratchet ring, wherein the case comprises a plurality of internal gears, the ratchet ring is disposed in the case and comprises a plurality of lower inclined gears, a plurality of upper inclined gears, and a plurality of ratchet gears, wherein each lower inclined gear and each upper inclined gear are located on the outer surface of the ratchet ring, each lower inclined gear is located below each upper inclined gear corresponding to each internal gear, and each ratchet gear is located on the inner surface of the ratchet ring.

Images