TWI813945B - Fastening device and lace tightening and releasing method - Google Patents

Abstract

The present disclosure provides a fastening device including a case, a spool, a plurality of ratchet teeth, an incremental releasing module and a knob. The case includes an inner region, and the spool is disposed within the inner region and is configured for a lace to wind therearound. The ratchet teeth are located in the inner region. The incremental releasing module includes a pawl arm and an operated portion. The pawl arm is selectively engaged with at least one of the ratchet teeth. The operated portion is linked up with the pawl arm. The knob is disposed on the case. When the pawl arm is engaged with the ratchet teeth, the spool is prohibited from rotating in a releasing direction. When the knob is rotated in a tightening direction, the pawl arm is disengaged from the ratchet teeth to allow the spool to tighten the lace. When the operated portion is operated, the pawl arm is disengaged from the ratchet teeth for allowing the lace to be incrementally released. Therefore, the lace can be incrementally released after the operated portion is operated, and the goal of incrementally releasing the lace can be achieved.

Description

Fastening devices and methods of retracting and retracting tie lines

The present invention relates to a fastening device and a retracting and retracting method, and in particular, to a fastening device and a retracting and retracting method of a tether line that can retract and unwind a tether line.

In daily life, threads such as ropes and ties are often used to tie up items. The most common tightening method is to use threads to shuttle back and forth through the holes in the items, and then fix them with knots, such as tying rope shoes. However, this method of tightening can easily cause the knots to loosen due to external factors. Not only does the knots have to be re-tied, but it also causes a lot of inconvenience because the items cannot be tightened stably.

In order to solve this kind of problem, some industry players have developed a simple wire harness mechanism, which includes a shell, a braking unit and a spring. The shell has a hole for the wire body to pass through, and it passes through the gap between the spring and the braking unit. The force causes the wire body to be clamped between the actuating unit and the housing to achieve a tightening effect. Pressing the spring to change the position of the actuating unit can pull the wire body to change its length. However, this type of wire harnessing mechanism provides fastening force through the restoring force of the spring. It is still easy for the wire body to loosen due to vibration or external force factors. Moreover, this type of wire harnessing mechanism does not have space to accommodate the wire body, so the wire body is exposed. It can also easily cause danger.

Therefore, some industry players have developed another buckle that can rotate to gather and fix the wire body. The wire body can be accommodated inside the buckle, and the length of the wire body can be adjusted through the mechanical interference of the internal components, and the length of the wire body can be adjusted at the same time. The tightness of the bandana. However, the complex structure of this type of fastener increases the manufacturing cost and makes assembly and maintenance difficult. In addition, when loosening this kind of buckle, it only has the function of fully releasing the wire body, but cannot release the wire body (tying the wire) segmentally (segment by segment), so it is still inconvenient in use.

In view of this, how to effectively improve the structure of fastening devices such as buckles to have the function of releasing the tie line in sections has become the goal of the relevant industry.

The present invention provides a fastening device and a method for retracting and releasing a tether, which can achieve the purpose of releasing the tether in sections through the structural configuration of the operating part.

According to an embodiment of the present invention, a fastening device is provided, which includes a housing, a linear disk, a plurality of ratchet teeth, a segmented release group and a knob. The casing includes an internal space, the wire reel is arranged in the internal space and is used for winding a series of wires, and the plurality of ratchet teeth are located in the internal space. The segmented release group includes a ratchet arm and an operating part. The ratchet arm selectively engages with at least one ratchet tooth, and the operating part links the ratchet arm. The knob is arranged on the housing. Wherein, when the ratchet arm is engaged with at least one ratchet tooth, it prevents the wire reel from rotating in a releasing direction; when the knob is rotated in a gathering direction, the ratchet arm disengages from at least one ratchet tooth to allow the wire reel to collect the tying line; when the operating part When operated, the ratchet arm disengages at least one ratchet tooth to allow the tether to be released in segments.

Thereby, before the operating part is operated, the ratchet arm can prevent the reel from releasing the tethering line, and after the operating part is operated, the tethering line can be released in sections, thereby achieving the purpose of releasing the tethering line in sections.

The fastening device according to the aforementioned embodiment may further include a ratchet wheel, which is disposed in the internal space and selectively coupled to the wire disk, and the plurality of ratchet teeth are located on the ratchet wheel.

According to the fastening device of the aforementioned embodiment, the ratchet wheel can be selectively coupled with the wire reel, and the knob is operated to decouple the ratchet wheel from the wire reel, allowing the tethered wire to be fully released.

According to the fastening device of the aforementioned embodiment, the knob may include at least one guide track, the ratchet includes at least one guide portion coupled with the guide track, and the knob rotates in the release direction to cause the ratchet wheel to be guided up by the at least one guide portion. , to release the coupling between the ratchet and the wire reel.

According to the fastening device of the above embodiment, the ratchet wheel may include an outer ring part and a lifting part, the plurality of ratchet teeth are located in the outer ring part, the lifting part is engaged with the outer ring part and includes a screw hole, and the knob includes a center The stud is coupled to the screw hole, and the knob is rotated in the release direction to raise the lifting portion to release the coupling between the ratchet and the wire reel.

According to the fastening device of the aforementioned embodiment, the segmented release group may further include a stopper, the stopper is spaced apart from the ratchet arm, and when the ratchet arm engages with at least one ratchet tooth, the stopper does not engage with any ratchet. teeth mesh; when the operating part is operated to separate the ratchet arm from at least one ratchet tooth, the stopper engages at least another ratchet tooth to stop the wire reel.

According to the fastening device of the aforementioned embodiment, the operating part can be exposed from the casing.

According to the fastening device of the aforementioned embodiment, the housing may include an annular wall and a pivot base. The ring wall may include an opening, and the pivot seat protrudes radially outward from the ring wall. The ratchet arm is integrally connected with the operating part and is pivoted on the pivot base. The ratchet arm extends into the internal space from the opening to engage with at least one ratchet tooth.

According to the fastening device of the aforementioned embodiment, the segmented release group may further include an elastic element, and when the ratchet arm is separated from at least one ratchet tooth, it pushes against the elastic element to accumulate force.

According to another embodiment of the present invention, a method for retracting and unwinding a tether is provided, which includes a tightening step, a segmented unwinding step and a full releasing step. In the tightening step, a fastening device provided on an object is operated. The fastening device includes a housing, a wire reel, a plurality of ratchet teeth, a ratchet arm and a knob. The wire reel is coupled to the tie wire and is located in the housing, Turning the knob in a take-up direction disengages the ratchet arm from at least one ratchet tooth to allow the reel to take in the tie line. In the segmented wire releasing step, an operating part of the fastening device is operated to separate the ratchet arm from at least one ratchet tooth and then engage with at least another ratchet tooth to allow the wire reel to rotate in a release direction to release the wire in the tying wire. a paragraph. In the full release step, the knob is operated so that the ratchet arm of the fastening device does not prevent the wire reel from rotating in the release direction, so that the tying wire can be released freely.

Embodiments of the present invention will be described below with reference to the drawings. For the sake of clarity, many practical details will be explained together in the following narrative. The reader should understand, however, that these practical details should not be construed as limiting the invention. That is to say, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some commonly used structures and components will be illustrated in a simple schematic manner in the drawings; and repeated components may be represented by the same numbers or similar numbers.

In addition, the terms first, second, third, etc. in this article are only used to describe different components or components, and there is no limitation on the components/components themselves. Therefore, the first component/component can also be renamed as the second component/component. . Moreover, the combination of components/components/mechanisms/modules in this article is not a combination that is generally known, conventional or customary in this field. Whether the components/components/mechanisms/modules themselves are common knowledge cannot be used to determine whether their combination relationship is Easily accomplished by a person of ordinary skill in the technical field.

Please refer to Figures 1, 2 and 3. Figure 1 shows a schematic three-dimensional view of a fastening device 1000 according to a first embodiment of the present invention, and Figure 2 shows the first embodiment of Figure 1. FIG. 3 shows another exploded schematic view of the fastening device 1000 of the first embodiment in FIG. 1 . The fastening device 1000 includes a housing 1200, a thread plate 1300, a plurality of ratchet teeth 1410, a segmented release group 1600 and a knob 1700. The housing 1200 includes an internal space 1260. The wire reel 1300 is disposed in the internal space 1260 and is used for winding a series of wires (not shown). The plurality of ratchet teeth 1410 are located in the internal space 1260. The segmented release group 1600 includes a ratchet arm 1611 and an operating part 1613. The ratchet arm 1611 is selectively engaged with at least one ratchet tooth 1410, and the operating part 1613 links the ratchet arm 1611. The knob 1700 is provided on the housing 1200. When the ratchet arm 1611 is engaged with at least one ratchet tooth 1410, it prevents the wire reel 1300 from rotating in a release direction A1. When the knob 1700 is rotated in a closing direction A2, the ratchet arm 1611 disengages from at least one ratchet tooth 1410 to allow the wire reel to rotate. 1300 tightens the tether; when the operating part 1613 is operated, the ratchet arm 1611 is separated from at least one ratchet tooth 1410 to allow the tether to be released in sections.

Thereby, before the operating part 1613 is operated, the ratchet arm 1611 can prevent the reel 1300 from releasing the tethering line, and after the operating part 1613 is operated, the tethering line can be released in sections, thereby achieving the purpose of releasing the tethering line in sections. The detailed structure of the fastening device 1000 will be described in detail later.

The fastening device 1000 may further include a ratchet 1400, which is disposed in the internal space 1260 and selectively coupled to the wire disk 1300, and the aforementioned plurality of ratchet teeth 1410 are located on the ratchet 1400 and therefore are also located in the internal space 1260. The ratchet 1400 may include an outer ring part 1420 and a lifting part 1430. The plurality of ratchet teeth 1410 are located on the outer ring part 1420. The lifting part 1430 is fitted with the outer ring part 1420 and includes a through hole 1431.

The outer ring part 1420 may have a hollow annular structure and include a central hole 1421. The shape of the central hole 1421 corresponds to the shape of the lifting part 1430 so that the lifting part 1430 can be lifted and lowered, wherein the lifting part 1430 can be inserted along the axis. It moves toward I1 (marked in Figure 4) relative to the outer ring portion 1420, but cannot rotate relative to the outer ring portion 1420.

The ratchet 1400 may further include a plurality of first combination teeth 1450 and three clamp arms 1440. The first combination teeth 1450 and the three clamp arms 1440 are located inside the lifting part 1430, and each clamp arm 1440 includes a radial protrusion (not shown) at the lower end. mark).

The wire reel 1300 may include a wire reel body 1310, a second coupling tooth 1320, and a positioning ring 1330. The second coupling tooth 1320 is located above the wire reel body 1310, and the positioning ring 1330 is located between the second coupling tooth 1320 and the wire reel body 1310. between. The second coupling teeth 1320 are used to selectively engage with the first coupling teeth 1450, and the positioning ring 1330 can cooperate with each clamp arm 1440.

The operating part 1613 can be exposed on the housing 1200 to facilitate the user's operation. Specifically, the housing 1200 may include an annular wall 1220 and a pivot base 1230 . The annular wall 1220 may include an opening 1221, and the pivot seat 1230 protrudes radially outward from the annular wall 1220. Among them, the ratchet arm 1611 is integrally connected with the operating part 1613 and is pivoted on the pivot base 1230. The ratchet arm 1611 extends into the internal space 1260 from the opening 1221 to engage with at least one ratchet tooth 1410, and the operating part 1613 is located outside the opening 1221. The housing 1200 may further include a cover 1240, a pivot 1250 and a base 1210. The cover 1240 may be covered on the pivot 1230 to cover the ratchet arm 1611 but not the operating part 1613, so the operating part 1613 may be exposed to the housing. 1200, the pivot rod 1250 protrudes downward from the cover body 1240, and the base 1210 can be used for setting the ring wall 1220 and the pivot seat 1230.

More specifically, the annular wall 1220 surrounds the internal space 1260, the pivot seat 1230 is integrally connected to the outer peripheral surface of the annular wall 1220, and the opening 1221 radially penetrates the body of the annular wall 1220 to connect the internal space 1260 with the outside. The segmented release group 1600 includes a pivot pawl 1610. A hook-shaped structure at one end of the pivot pawl 1610 can be defined as a ratchet arm 1611. A dial structure at the other end of the pivot pawl 1610 can be defined as an operating portion 1613. The pivot pawl 1610 includes A pivot hole (mark) allows the pivot rod 1250 to pass through, so that the pivot pawl 1610 can be pivoted on the pivot seat 1230, and the pivot pawl 1610 protrudes from the opening 1221 into the internal space 1260, so that the ratchet arm 1611 and the ratchet wheel The teeth 1410 correspond to each other, and the operating portion 1613 is left exposed in the opening 1221 .

The knob 1700 may include a through hole (not labeled) and three limiting pieces 1710. The three limiting pieces 1710 protrude downward from the inner top surface of the knob 1700 along the axial direction I1. The three limiting pieces 1710 are used to insert into the outer ring portion 1420. There are three limiting holes 1422, whereby rotating the knob 1700 can drive the ratchet 1400 to rotate. The fastening device 1000 may further include a connection unit 1800 (marked in Figure 4). The connection unit 1800 includes a screw rod 1810 and a positioning shaft 1820. The positioning shaft 1820 passes through the wire reel 1300 from bottom to top, and the screw rod 1810 extends from top to bottom. The lower part passes through the through hole 1431 to be screw-locked with the positioning shaft 1820. One end of the positioning shaft 1820 abuts the lifting part 1430, and the other end is limited to the axis space of the wire reel 1300.

Please refer to Figures 4 and 5, and please refer to Figures 2 and 3 together. Figure 4 shows a schematic cross-sectional view of the fastening device 1000 of the first embodiment in Figure 1, and Figure 5 Figure 1 shows another schematic cross-sectional view of the fastening device 1000 of the first embodiment. The ratchet 1400 is selectively coupled to the reel 1300 and the knob 1700 is operated to decouple the ratchet 1400 from the reel 1300 and allow the tether to be fully released. Specifically, the knob 1700 can be actuated along the axial direction I1 to be positioned at the first position or the second position. As shown in Figure 4, when the knob 1700 is at the first position, the lifting portion 1430 does not rise, and the first combination tooth 1450 meshes with the second combination tooth 1320. When the knob 1700 rotates in the closing direction A2, the pivot pawl 1610 is pushed outward to pivot outward so that the ratchet arm 1611 is separated from the ratchet teeth 1410. The wire reel 1300 is allowed to rotate in the closing direction A2, and can Tie up the tie. If the user stops turning the knob 1700, the ratchet arm 1611 engages with the ratchet teeth 1410, preventing the wire reel 1300 from rotating in the release direction A1, and the tying line can be tightened.

When the tying line is to be fully released, the user can pull up the knob 1700 to position it in the second position. At this time, the lifting part 1430 rises, the first coupling teeth 1450 and the second coupling teeth 1320 are separated, and the wire reel 1300 is not affected and can be released. Free to turn in release direction A1. It should be noted here that when the tie line is fully released, although only the lifting part 1430 rises, the outer ring part 1420 does not rise, so the ratchet arm 1611 is still engaged with the ratchet teeth 1410. However, because the first combination teeth 1450 have It is separated from the second coupling tooth 1320, so the coupling between the ratchet wheel 1400 and the wire disk 1300 is essentially released, and the wire disk 1300 is not affected by the meshing of the ratchet arm 1611 and the ratchet tooth 1410.

Please refer to Figures 6A and 6B, and refer to Figures 2 to 5 together. Figure 6A illustrates a portion of the fastening device 1000 of the first embodiment of Figure 4 along the cut plane line 6-6. Schematic cross-sectional view, Figure 6B shows another schematic cross-sectional view of the fastening device 1000 of the first embodiment in Figure 4 along the cut plane line 6-6. The segmented release group 1600 may further include a stopper 1612. The stopper 1612 is spaced apart from the ratchet arm 1611. When the ratchet arm 1611 engages with at least one ratchet tooth 1410, the stopper 1612 does not engage with any ratchet tooth 1410; When the operating part 1613 is operated to separate the ratchet arm 1611 from at least one ratchet tooth 1410, the stopper part 1612 engages at least another ratchet tooth 1410 to stop the wire reel 1300. More specifically, another hook-shaped structure of the pivot pawl 1610 may be defined as a stop portion 1612 , and the stop portion 1612 is configured not to engage the ratchet teeth 1410 at the same time as the ratchet arm 1611 . As shown in Figure 6A, when the ratchet arm 1611 engages the ratchet teeth 1410, the wire reel 1300 can be prevented from rotating in the release direction A1 as described above; conversely, when the user turns the operating part 1613, the pivot pawl 1610 rotates with the pivot rod 1250. The central axis performs a pivoting movement, causing the ratchet arm 1611 to rotate outward and away from the ratchet teeth 1410. At this time, the wire reel 1300 is released and can rotate in the release direction A1. However, due to the stop when the ratchet arm 1611 rotates out, The portion 1612 is screwed inward and engages with the ratchet teeth 1410, so the wire reel 1300 is blocked by the stopper portion 1612 and cannot rotate in the release direction A1, thus helping to prevent the wire reel 1300 from rotating before the ratchet arm 1611 is reset, and Can be more helpful in releasing the tether line piece by piece. In other words, through the structural configuration of the stopper part 1612, after the user turns the operating part 1613, the tethering line will not be fully released, but only a small section of the tethering line will be released. It should be noted here that after the user turns the operating part 1613, the reel 1300 can rotate by a pitch of one ratchet tooth 1410, thereby releasing the tie line piece by piece. In other embodiments, the rotation range of the wire disk may also be the pitch of multiple ratchet teeth, but is not limited thereto.

In addition, the segmented release group 1600 may further include an elastic element 1620, and when the ratchet arm 1611 is separated from the ratchet teeth 1410, it pushes against the elastic element 1620 to accumulate force. The elastic element 1620 can have a torsion spring structure. One end of the elastic element 1620 is limited to the pivot seat 1230, and the other end is against the ratchet arm 1611. Therefore, the pivot of the ratchet arm 1611 can push the elastic element 1620 to twist and accumulate force, so the elastic element 1620 can After the external force of the operating part 1613 is removed, the ratchet arm 1611 is pushed back to its original position.

Please refer to Figure 7, which shows an exploded schematic diagram of a fastening device 2000 according to a second embodiment of the present invention. The fastening device 2000 is similar to the fastening device 1000 in FIGS. 1 to 6B , except that the structure of the ratchet wheel 2400 is different from the ratchet wheel 1400 . The ratchet 2400 also includes an outer ring portion 2420 and a lifting portion 2430. The lifting portion 2430 is generally annular and includes a plurality of radial external teeth to cooperate with a plurality of radial internal teeth of the outer ring portion 2420. Other structures of the fastening device 2000 that are the same as those of the fastening device 1000 will not be described again.

Please refer to Figure 8, which shows an exploded schematic diagram of a fastening device 3000 according to a third embodiment of the present invention. The fastening device 3000 is similar to the fastening device 1000 in FIGS. 1 to 6B, except that the structure of the ratchet wheel 3400 is different from the ratchet wheel 1400. The ratchet 3400 has a one-piece structure, that is, it is not divided into an outer ring part 1420 and a lifting part 1430 like the ratchet 1400 . The ratchet 3400 is a cylindrical structure and may include a plurality of first coupling teeth 3450 and a plurality of ratchet teeth 3410. The first coupling teeth 3450 are located on the inner peripheral surface of the ratchet 3400 and correspond to the plurality of second coupling teeth 3320 of the wire disk 3300. The ratchet teeth 3410 are located on The outer peripheral surface of the ratchet wheel 3400 corresponds to the ratchet arm 3611, and pulling up the knob 3700 can cause the ratchet wheel 3400 to rise as a whole, causing the first combination tooth 3450 to separate from the second combination tooth 3320. Although the ratchet tooth 3410 still corresponds to the ratchet arm 3611, However, since the reel 3300 has been decoupled, it can rotate freely. In other embodiments, the height of the ratchet teeth can be changed so that the ratchet wheel rises as a whole and the ratchet teeth are disengaged from the ratchet arm and do not correspond to each other. That is to say, in terms of structural configuration, the ratchet arm can be engaged with the ratchet teeth or the ratchet arm when fully released. Separation from the ratchet teeth is not limited to this. Other structures of the fastening device 3000 that are the same as those of the fastening device 1000 will not be described again.

Please refer to Figures 9, 10, 11 and 12. Figure 9 shows an exploded diagram of a fastening device 4000 according to a fourth embodiment of the present invention. Figure 10 shows an exploded view of a fastening device 4000 according to a fourth embodiment of the present invention. Figure 11 is another exploded schematic view of the fastening device 4000 of the fourth embodiment. Figure 11 shows a cross-sectional schematic view of the fastening device 4000 of the fourth embodiment of Figure 10. Figure 12 shows the fourth embodiment of Figure 10. Another schematic cross-sectional view of an example fastening device 4000. In the fastening device 4000, the knob 4700 may include at least one guide track 4720, and the ratchet 4400 may include at least one guide part 4460 coupled with the guide track 4720. The knob 4700 rotates in the release direction to cause the ratchet 4400 to be supported by the at least one guide track. 4720 is guided upward to decouple the ratchet 4400 and the wire reel 4300.

As shown in Figure 10, the ratchet 4400 is a one-piece structure, and the number of guide parts 4460 is three. Each guide part 4460 protrudes outward from the outer circumferential surface of the ratchet 4400 and has a helical tooth structure. The guide track 4720 is located at The inner wall of the knob 4700 can correspond to the guide portion 4460.

The ratchet 4400 may further include a first holding part 4470, a second holding part 4480 and two protrusions 4491, 4492. The first holding part 4470 and the second holding part 4480 each include a free end 4471, 4481, and the free end 4471, 4481. 4481 can move in the radial direction after receiving force, and can be reset after the external force is removed.

The knob 4700 may further include a protruding post 4740, a through hole 4750 and two positioning blocks 4730. The protruding post 4740 protrudes downward along the axial direction (not shown in Figures 9 to 12), and the through hole 4750 penetrates the protruding post 4740. The two positioning blocks 4730 are symmetrically disposed on the outside of the protruding column 4740 along the radial direction.

As shown in Figure 11, the ratchet wheel 4400 does not rise and is coupled with the wire reel 4300. At this time, the tethering wire can be tightened and the tying wire can be prevented from being released. On the contrary, as shown in Figure 12, rotating the knob 4700 in the release direction can drive the ratchet wheel 4400 to rise in the axial direction, so as to release the coupling between the ratchet wheel 4400 and the wire reel 4300. More specifically, before the ratchet 4400 rises, one of the positioning blocks 4730 is located between the free end 4471 of the first holding part 4470 and the convex block 4491, and the other positioning block 4730 is located between the free end 4481 of the second holding part 4480 and the convex block 4491. between blocks 4492. When the knob 4700 rotates in the release direction, the ratchet 4400 is limited by the meshing relationship between the ratchet arm 4611 and the ratchet teeth 4410 and cannot rotate together. Therefore, the two positioning blocks 4730 are pressed against the two free ends 4471 and 4481 respectively. 4481 is radially deformed so that the knob 4700 can rotate relative to the ratchet wheel 4400. The guide portion 4460 is guided by the guide rail 4720 and can rise axially relative to the guide rail 4720 to switch the position of the ratchet wheel 4400. At this time, one of the aforementioned positioning blocks 4730 is positioned between the free end 4471 of the first holding part 4470 and the bump 4492, and the other aforementioned positioning block 4730 is positioned between the free end 4481 of the second holding part 4480 and the bump 4491. , whereby the ratchet 4400 can be positioned.

The connection unit 4800 of the fastening device 4000 may include a locking sleeve 4830, a stop ring 4840 and a screw rod 4810. The locking sleeve 4830 passes through the through hole 4750 of the knob 4700, and the stop ring 4840 is limited to the wire drum 4300. The shaft center space of the screw rod 4810 passes through the stop ring 4840 and is then locked on the locking sleeve 4830.

In the fastening device 4000 shown in Figures 9 to 12, the ratchet 4400 is raised by turning the knob 4700 to fully release the tie line. The release methods are different, but all can be fully released by operating knobs 1700, 3700, and 4700.

Please refer to Figure 13, which shows an exploded schematic diagram of a fastening device 5000 according to a fifth embodiment of the present invention. In the fastening device 5000, the ratchet 5400 may include an outer ring part 5420 and a lifting part 5430. A plurality of ratchet teeth 5410 are located on the outer ring part 5420. The lifting part 5430 is engaged with the outer ring part 5420 and includes a screw hole 5431. The knob 5700 It includes a central stud 5760 coupled to the screw hole 5431. The knob 5700 is rotated in the release direction to raise the lifting portion 5430 to release the coupling between the ratchet 5400 and the wire reel 5300. Specifically, the fastening device 5000 also rotates the knob 5700 to raise the ratchet 5400 to fully release the tie line. However, it achieves this purpose with a structure in which the screw hole 5431 corresponds to the center stud 5760, which is slightly different from the fastening device 4000. There are different.

The connection unit 5800 of the fastening device 5000 may include a stop ring 5840 and a screw rod 5810. The stop ring 5840 is limited to the axial space of the wire drum 5300. The screw rod 5810 passes through the stop ring 5840 and is then locked to the central stud 5760. .

Please refer to Figures 14 and 15. Figure 14 shows an exploded schematic diagram of a fastening device 6000 according to a sixth embodiment of the present invention. Figure 15 shows a fastening device according to the sixth embodiment of Figure 14. 6000 cross-section diagram. The fastening device 6000 of the sixth embodiment is similar to the fastening device 4000 of Figures 9 to 12. The knob 6700 may include at least one guide track 6720, and the ratchet 6400 may include an outer ring part 6420, a lifting part 6430 and The three guide portions 6460 protrude radially outward from the upper edge of the lifting portion 6430 to couple with the guide rail 6720 . Thereby, rotating the knob 6700 can cause the lifting portion 6430 to rise, so as to decouple the ratchet 6400 from the wire drum 6300 and allow the tethering wire to be fully released. Other structures of the fastening device 6000 that are the same as or similar to the fastening device 4000 will not be described again.

Please refer to Figure 16, and also refer to Figures 1 to 6B. Figure 16 illustrates a block flow chart of a tether retracting and retracting method 7000 according to a seventh embodiment of the present invention. The tie line retracting and unwinding method 7000 includes a tightening step S01 and a segmented line unwinding step S02.

In the tightening step S01, a fastening device 1000 disposed on an object is operated. The fastening device 1000 includes a housing 1200, a wire reel 1300, a plurality of ratchet teeth 1410, a ratchet arm 1611 and a knob 1700. The wire reel 1300 Coupled to the tether and located in the housing 1200, turning the knob 1700 toward a gathering direction A2 disengages the ratchet arm 1611 from at least one ratchet tooth 1410 to allow the wire reel 1300 to gather the tether.

In the segmented wire releasing step S02, an operating part 1613 of the fastening device 1000 is operated to separate the ratchet arm 1611 from at least one ratchet tooth 1410 and then engage with at least another ratchet tooth 1410 to allow the wire reel 1300 to move in a release direction. A1 turns to release a section of the tether.

Specifically, in the tightening step S01, the ratchet 1400 is driven to rotate by rotating the knob 1700. When the ratchet 1400 rotates, the ratchet arm 1611 is deflected, so that the ratchet arm 1611 is separated from the ratchet teeth 1410, thereby tightening the tie line. When the knob 1700 stops rotating, the ratchet arm 1611 engages with the ratchet teeth 1410 to prevent the reel 1300 from releasing the tying wire. In the segmented wire releasing step S02, every time the user moves the operating part 1613, the ratchet arm 1611 and the ratchet teeth 1410 can be separated, and a small section of the tying wire can be released.

If you want to fully release the tether line, the tether line retracting and unwinding method 7000 can further include a full release step S03. The knob 1700 is operated so that the ratchet arm 1611 of the fastening device 1000 does not prevent the wire reel 1300 from rotating in the release direction A1, so that the tether line can be fully released. Be freed. Among them, the knob 1700 can be pulled up to release the coupling between the ratchet 1400 and the reel 1300. At this time, the reel 1300 is not affected by the meshing of the ratchet teeth 1410 and the ratchet arm 1611, and can rotate freely, so that the tying line can be fully released. In addition to pulling up the knob 1700 to fully release the tether, the tether can also be fully released by turning the knob 4700 (marked in Figure 9), and the invention is not limited thereto.

Although the present invention has been disclosed above through embodiments, they are not intended to limit the present invention. Anyone skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention is The scope shall be determined by the appended patent application scope.

1000,2000,3000,4000,5000,6000: fastening device 1200: Shell 1210:Base 1220: Ring wall 1221:Open your mouth 1230:Pivot 1240: Cover body 1250: Pivot 1260:Internal space 1300,3300,4300,5300,6300: reel 1310: Cable reel body 1320,3320: Second combination tooth 1330: Positioning ring 1400,2400,3400,4400,5400,6400: ratchet 1410,3410,4410,5410: ratchet teeth 1420,2420,5420,6420: Outer ring part 1421: Center hole 1422: Limit hole 1430,2430,5430,6430:Lifting part 1431:Through hole 1440:Clamp arm 1450,3450: first combination tooth 1600: Segmented release group 1610: Pivot Claw 1611,3611,4611: ratchet arm 1612: Stopper 1613:Operation Department 1620: Elastic element 1700,3700,4700,5700,6700: Knob 1710:Limiting piece 1800, 4800, 5800: connection unit 1810,4810,5810:Screw 1820: Positioning axis 4460,6460: Guidance Department 4470:First maintenance department 4471,4481: Free end 4480:Second maintenance department 4491,4492: Bump 4720,6720:Guide track 4730: Positioning block 4740:Protruding pillar 4750:Through hole 4830: Locking bushing 4840,5840: Stop ring 5431:Screw hole 5760:Center stud 7000: How to retract and release the tether line A1: Release direction A2: convergence direction I1: axial S01: Tightening steps S02: Steps of setting out wire in sections S03: Full release steps

Figure 1 is a schematic three-dimensional view of a fastening device according to a first embodiment of the present invention; Figure 2 shows an exploded schematic diagram of the fastening device of the first embodiment of Figure 1; Figure 3 shows another exploded schematic diagram of the fastening device of the first embodiment in Figure 1; Figure 4 shows a schematic cross-sectional view of the fastening device of the first embodiment of Figure 1; Figure 5 shows another cross-sectional view of the fastening device of the first embodiment in Figure 1 Figure; Figure 6A shows a schematic cross-sectional view of the fastening device of the first embodiment of Figure 4 along the cut plane line 6-6; Figure 6B shows another schematic cross-sectional view of the fastening device of the first embodiment of Figure 4 along the cut plane line 6-6; Figure 7 shows an exploded schematic diagram of a fastening device according to a second embodiment of the present invention; Figure 8 shows an exploded schematic diagram of a fastening device according to a third embodiment of the present invention; Figure 9 shows an exploded schematic diagram of a fastening device according to a fourth embodiment of the present invention; Figure 10 shows another exploded schematic diagram of the fastening device of the fourth embodiment of Figure 9; Figure 11 shows a schematic cross-sectional view of the fastening device of the fourth embodiment of Figure 10; Figure 12 shows another schematic cross-sectional view of the fastening device of the fourth embodiment of Figure 10; Figure 13 shows an exploded schematic diagram of a fastening device according to a fifth embodiment of the present invention; Figure 14 shows an exploded schematic diagram of a fastening device according to a sixth embodiment of the present invention; Figure 15 shows a schematic cross-sectional view of the fastening device of the sixth embodiment in Figure 14; and Figure 16 illustrates a block flow chart of a tether retracting and retracting method according to a seventh embodiment of the present invention.

1000: Fastening device

1200: Shell

1210:Base

1220: Ring wall

1221:Open your mouth

1230:Pivot

1240: Cover body

1250: Pivot

1260:Internal space

1300:Thread reel

1310: Cable reel body

1320: Second combination tooth

1330: Positioning ring

1400:ratchet

1410: Ratchet teeth

1420: Outer ring part

1421: Center hole

1422: Limit hole

1430:Lifting part

1431:Through hole

1600: Segmented release group

1610: Pivot Claw

1611: Ratchet Arm

1612: Stopper

1613:Operation Department

1620: Elastic element

1700: Knob

1810:Screw

1820: Positioning axis

A1: Release direction

A2: convergence direction

Claims (10)

A fastening device consisting of: a shell containing an interior space; A thread reel is provided in the internal space and is used for winding a series of threads; a plurality of ratchet teeth located in the internal space; A segmented release group, containing: a ratchet arm selectively engaged with at least one of the ratchet teeth; and An operating part links the ratchet arm; and A knob provided on the housing; Wherein, when the ratchet arm engages at least one of the ratchet teeth, it prevents the reel from rotating in a releasing direction. When the knob is rotated in a retracting direction, the ratchet arm disengages from at least one of the ratchet teeth to allow the reel to retract. Bundle the tether; when the operating part is operated, the ratchet arm is separated from at least one ratchet tooth to allow the tether to be released in sections. The fastening device as described in claim 1 further includes: A ratchet wheel is disposed in the internal space and selectively coupled to the wire disk, and the ratchet teeth are located on the ratchet wheel. The fastening device of claim 2, wherein the ratchet is selectively coupled to the wire reel, and the knob is operated to decouple the ratchet from the wire reel, allowing the tether to be fully released. The fastening device as claimed in claim 3, wherein the knob includes at least one guide track, the ratchet includes at least one guide portion coupled with the guide track, and the knob rotates in the release direction to cause the ratchet to receive at least A guide portion guides and rises to release the coupling between the ratchet and the wire reel. The fastening device of claim 3, wherein the ratchet wheel includes an outer ring part and a lifting part, the ratchet teeth are located in the outer ring part, the lifting part is engaged with the outer ring part and includes a screw hole , the knob includes a central stud coupled to the screw hole, and the knob is rotated in the release direction to raise the lifting portion to release the coupling between the ratchet and the wire reel. The fastening device of claim 1, wherein the segmented release group further includes a stopper, the stopper is spaced apart from the ratchet arm, and when the ratchet arm engages with at least one of the ratchet teeth, the stopper The stop portion does not engage with any of the ratchet teeth; when the operating portion is operated to separate the ratchet arm from at least one of the ratchet teeth, the stop portion engages at least another of the ratchet teeth to stop the wire reel. The fastening device as claimed in claim 1, wherein the operating part is exposed from the housing. The fastening device according to claim 7, wherein the housing contains: a circumferential wall containing an opening; and a pivot seat protruding radially outward from the ring wall; Wherein, the ratchet arm is integrally connected with the operating part and is pivoted on the pivot base. The ratchet arm extends into the internal space from the opening to engage with at least one ratchet tooth. The fastening device of claim 1, wherein the segmented release group further includes an elastic element, and when the ratchet arm is separated from at least one of the ratchet teeth, it pushes against the elastic element to accumulate force. A method of retracting and retracting a tying line, including: A tightening step is to operate a fastening device provided on an object. The fastening device includes a housing, a wire reel, a plurality of ratchet teeth, a ratchet arm and a knob. The wire reel is coupled to the tie line and located on the tie line. In the housing, rotate the knob in a gathering direction to disengage the ratchet arm from at least one ratchet tooth to allow the wire reel to gather the tether; In a segmented wire releasing step, an operating part of the fastening device is operated to separate the ratchet arm from at least one of the ratchet teeth and then engage with at least another of the ratchet teeth to allow the wire reel to rotate in a release direction to release. a section of the tether; and A full release step is to operate the knob so that the ratchet arm of the fastening device does not prevent the wire reel from rotating in the release direction, so that the tie line can be released freely.

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