Rope tightener

Abstract

The rope winding device comprises a base with a bottom plate and a ring-shaped body, a winding disc with a pivot hole, and a cover with a plurality of ratchet teeth and fixed to the winding disc; the base has a receiving space and a rotating shaft, and the ring-shaped body has at least one pawl corresponding to the ratchet teeth of the cover; the pivot hole of the winding disc is sleeved on the rotating shaft of the base, and the cover drives the winding disc to rotate relative to the base or to displace relative to the base between a pressed position and a pulled position; when the cover is in the pressed position, the ratchet teeth are engaged with the pawl, so that the cover can drive the winding disc to rotate in a single direction around the rotating shaft; when the cover is in the pulled position, the ratchet teeth are disengaged from the pawl, so that the cover can drive the winding disc to rotate randomly.

Description

Technical Field

[0001] This invention relates to a tightening device, and more particularly to a rope tightening device with a simple structure and easily replaceable components. Background Technology

[0002] When wearing shoes with laces, users typically connect the laces to both sides of the shoe's upper in a crisscross pattern. They then tighten the ends of the laces and tie a knot to secure them, improving the fit and allowing for comfortable movement. However, this can be quite challenging for preschool children or elderly individuals who need to put on or take off their shoes, as they often find it difficult to tighten or loosen the laces.

[0003] Secondly, when users are working on construction sites or engaging in competitive activities (such as bicycle racing), the ends of tightly tied shoelaces can easily come undone due to vigorous movement or impacts from external objects, significantly increasing the probability of accidents. Therefore, shoelaces must not come undone accidentally during activities. However, during rest periods, users need to loosen the shoelaces to allow their feet to fully rest. Therefore, we need a device that can both tighten and loosen shoelaces.

[0004] To address the aforementioned issues, commonly used shoelace tighteners can meet users' needs for tightening and loosening shoelaces. However, these tighteners require numerous components and have complex structures, making them difficult to assemble and reducing product productivity. Furthermore, damaged components are difficult to replace for repair, resulting in low product maintainability. Therefore, commonly used shoelace tighteners still have room for improvement. Summary of the Invention

[0005] In view of this, the main objective of the present invention is to provide a rope tightener that requires fewer components and has a simple structure, and whose components are easy to replace and repair when damaged.

[0006] To achieve the above objectives, the rope tensioner provided by the present invention includes a base having a bottom plate and an annular body, a winding reel having a pivot hole, and a top cover having a plurality of ratchet teeth and fixed to the winding reel. The base has an accommodating space and a rotating shaft, and the annular body has at least one pawl corresponding to the ratchet teeth. The pivot hole is fitted onto the rotating shaft, and the top cover drives the winding reel to rotate relative to the base, or drives the winding reel to move relative to the base between a depressed position and a pulled-up position. When the top cover is in the depressed position, the ratchet teeth are engaged with the pawl, causing the winding reel to rotate unidirectionally around the rotating shaft. When the top cover is in the pulled-up position, the ratchet teeth are disengaged from the pawl, allowing the top cover to drive the winding reel to rotate arbitrarily.

[0007] Through the aforementioned technical features, namely, by using the top cover to drive the winding reel to move relative to the base between the pressing position and the pulling position, so that the winding reel can wind up the rope or pull the rope out from the winding reel, the functions of tightening and loosening shoelaces commonly used by rope tighteners can be satisfied. Moreover, the rope tightener provided by the present invention has only a few components, its structure is simple, and it is very easy to assemble and maintain, thus improving the productivity and ease of maintenance of the product.

[0008] Preferably, the pivot hole of the take-up reel has a lower pivot section with a circular cross-section that is rotatably fitted onto the rotating shaft, and an upper pivot section that communicates with the lower pivot section and has a non-circular cross-section; the upper cover has a downwardly protruding main drive shaft, the shape of which is complementary to the upper pivot section, and the main drive shaft is fitted into the upper pivot section, so that the upper cover can drive the take-up reel to rotate relative to the base, and can drive the take-up reel to displace relative to the base between the pressed position and the pulled position. Thus, with the lower pivot section of the pivot hole fitted onto the rotating shaft, and the main drive shaft fitted into the upper pivot section of the pivot hole, the upper cover and the rotating shaft that can drive the take-up reel relative to the base slide up and down and rotate.

[0009] Preferably, the main drive shaft of the top cover has a countersunk hole; the rope tightener further includes a first fixing screw, the first fixing screw having a head and a threaded body connecting the head, the first fixing screw passing through the countersunk hole of the main drive shaft and locking onto the shaft, and the head of the first fixing screw being located in the countersunk hole, and when the top cover is in the pulled-up position, the head of the first fixing screw abuts against a bottom surface of the countersunk hole. Thus, the head of the first fixing screw limits the maximum pulled-up position of the top cover.

[0010] Preferably, the rope tensioner further includes a second fixing screw, which is locked between the top cover and the winding reel to secure the top cover to the winding reel.

[0011] Preferably, the take-up reel has a fixing hole, and the top cover has a downwardly protruding auxiliary drive shaft spaced apart from the main drive shaft. The auxiliary drive shaft is fitted into the fixing hole, and the second fixing screw has a head and a threaded body connected to the head. The threaded body of the second fixing screw passes through the fixing hole and locks onto the auxiliary drive shaft of the top cover, and the head of the second fixing screw abuts against the take-up reel. Thus, by the mutual engagement of the auxiliary drive shaft and the fixing hole, the second fixing screw can more tightly lock the top cover and the take-up reel together.

[0012] Preferably, the outer peripheral surface of the pivot of the base has a first annular groove and a second annular groove, and the wall of the pivot hole of the reel has an annular locking portion. When the top cover is in the pressed position, the annular locking portion is locked in the first annular groove; when the top cover is in the pulled position, the annular locking portion is locked in the second annular groove. Thus, when the top cover is in the pressed position or the pulled position, the annular locking portion is locked in the first annular groove or the second annular groove, which can restrict the reel from sliding relative to the pivot at a fixed position.

[0013] Preferably, the annular body of the base has a first through hole and a second through hole corresponding to the first through hole, and the at least one pawl includes a first pawl and a second pawl corresponding to the first pawl; the first and second pawls and the first and second through holes are equally spaced around the pivot on the annular body. Thus, when the ratchet of the top cover engages with the first and second pawls of the base, the top cover can drive the winding reel to rotate smoothly in one direction around the pivot.

[0014] Preferably, the reel has a bottom plate, a top plate, and a middle portion connecting the top and bottom plates, and the pivot hole passes through the bottom plate, the top plate, and the middle portion.

[0015] Preferably, the reel has a base plate comprising a first bottom, a second bottom spaced apart from the first bottom, and a connecting portion connecting the first and second bottoms; the rope tensioner further comprises an elastic element having two elastic abutment portions, each abutting against one side of the connecting portion of the reel; the outer circumference of the pivot of the base has a first annular groove and a second annular groove. When the top cover is in the depressed position, the elastic abutment portions of the elastic element abut against the first annular groove of the pivot; when the top cover is in the pulled-up position, the elastic abutment portions of the elastic element abut against the second annular groove of the pivot. Thus, when the top cover is in the depressed or pulled-up position, the elastic abutment portions abut against the first or second annular groove will make a sound, thereby reminding the user that the reel is relatively abutted against a fixed position on the pivot.

[0016] Preferably, the reel also has a receiving groove located between the first and second bottoms and the connecting portion; the elastic member also has an arc-shaped body located between the elastic locking portions, the elastic member being received in the receiving groove of the reel with the arc-shaped body, so that the elastic member and the reel are driven by the top cover to slide up and down relative to the rotating shaft.

[0017] Detailed construction, features, assembly, and usage of the rope tightener provided by this invention will be described in the following detailed description of embodiments. However, those skilled in the art will understand that these detailed descriptions and the specific embodiments listed for implementing this invention are merely illustrative and not intended to limit the scope of this patent application.

[0018] The above overview and the following detailed description are illustrative in nature and are intended to further illustrate the scope of protection of this invention. Other objects and advantages of this invention will be set forth in the following description and drawings. Attached Figure Description

[0019] Figure 1 This is a perspective view of the rope tightener provided in the first embodiment of the present invention;

[0020] Figure 2 yes Figure 1 An exploded perspective view of the first embodiment shown;

[0021] Figure 3 yes Figure 1 An exploded perspective view of the first embodiment shown from another angle;

[0022] Figure 4a yes Figure 1 A sectional view along section line 4-4 shows the top cover in the depressed position;

[0023] Figure 4b Similar Figure 4a However, the display shows the top cover is in the pulled-up position;

[0024] Figure 5 This is a perspective view of the winding reel and elastic element provided by the rope tensioner according to the second embodiment of the present invention;

[0025] Figure 6a This is a cross-sectional view of the rope tightener provided in the second embodiment of the present invention, showing the upper cover in the pressed-down position; and

[0026] Figure 6b It is similar to 6a, indicating that the top cover is in the pulled-up position.

[0027] Figure Labels

[0028] 1: Rope tightener;

[0029] 2: Rope tightener;

[0030] 10: Base;

[0031] 10': Base;

[0032] 11: Base plate;

[0033] 12: Ring-shaped body;

[0034] 121: First gap;

[0035] 121a: First pawl;

[0036] 122: The second gap;

[0037] 122a: Second pawl;

[0038] 123: First perforation;

[0039] 124: Second perforation;

[0040] 13: Storage space;

[0041] 14: Shaft;

[0042] 14': Axle;

[0043] 141: First annular groove;

[0044] 141': First annular groove;

[0045] 142: Second annular groove;

[0046] 142': Second annular groove;

[0047] 143': Pushing part;

[0048] 20: Closing price;

[0049] 20': Closing price;

[0050] 21: Base plate;

[0051] 21': Base plate;

[0052] 211': First bottom;

[0053] 212': Second bottom;

[0054] 213': Connecting part;

[0055] 214': Receiving slot;

[0056] 22: Top slab;

[0057] 22': Top plate;

[0058] 221, 222: Perforation;

[0059] 23: Middle section;

[0060] 23': Middle section;

[0061] 24: Winding groove;

[0062] 24': Rewind groove;

[0063] 25: Pivot hole;

[0064] 251: Lower pivot segment;

[0065] 251a: Annular locking part;

[0066] 252: Upper pivot segment;

[0067] 26: Fixed hole;

[0068] 261: Countersunk hole;

[0069] 262: fixed section;

[0070] 30: Rope;

[0071] 31: First end;

[0072] 32: Second end;

[0073] 33: Body;

[0074] 40: Top cover;

[0075] 41: Top plate;

[0076] 411: Main drive shaft;

[0077] 411a: Countersunk hole;

[0078] 412: Auxiliary drive shaft;

[0079] 42: Annular sidewalls;

[0080] 421: Ratchet;

[0081] 50: First fixing screw;

[0082] 51: Head;

[0083] 52: Threaded body;

[0084] 60: Second fixing screw;

[0085] 61: Head;

[0086] 62: Threaded body;

[0087] 70: Elastic component;

[0088] 71: Elastic locking part;

[0089] 72: Curved body;

[0090] P1: Press-down position;

[0091] P2: Pull up position. Detailed Implementation

[0092] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0093] First, it should be noted that the technical features provided by this invention are not limited to the specific structures, uses, and applications described in the embodiments. The terminology used in this description is illustrative and descriptive, and is not intended to limit the scope of the claims. Directional terms such as "front," "up," "down," "back," "left," "right," "top," "bottom," "inner," and "outer" mentioned in this specification are merely illustrative descriptive terms based on normal usage directions and are not intended to limit the scope of the claims.

[0094] Please refer to this first. Figures 1 to 3 The rope tightener 1 provided in the first embodiment of the present invention mainly includes a base 10, a winding reel 20, an upper cover 40, a first fixing screw 50, and a second fixing screw 60. The structural features of each component will be described in detail below.

[0095] The base 10 is a one-piece molded component having a base plate 11, an annular body 12 extending upward from the base plate 11, an accommodating space 13 defined by the base plate 11 and the annular body 12, and a pivot 14 extending upward from the base plate 11 and located in the accommodating space 13. Specifically, in this embodiment, an outer peripheral surface of the pivot 14 has a first annular groove 141 and a second annular groove 142, while an outer peripheral surface of the annular body 12 has a first notch 121 and a second notch 122 corresponding to the first notch 121. Secondly, the outer peripheral surface of the annular body 12 has a first pawl 121a that connects to the right side of the first notch 121 and protrudes outward from the first notch 121. Similarly, the outer peripheral surface of the annular body 12 has a second pawl 122a that connects to the left side of the second notch 122 and protrudes outward from the second notch 122. In addition, the annular body 12 has a first through hole 123 and a second through hole 124 that corresponds to the first through hole 123. The first and second pawls 121a and 122a and the first and second through holes 123 and 124 are arranged at equal intervals around the pivot 14 on the annular body 12.

[0096] Please also refer to Figure 2 , Figure 3 , Figure 4a and Figure 4bThe take-up reel 20 is a one-piece molded component comprising a base plate 21, a top plate 22, and a middle portion 23 connecting the top and bottom plates 21 and 22. A take-up groove 24 is formed between the base plate 21, the top plate 22, and the middle portion 23. Specifically, the top plate 22 has a pair of through holes 221 and 222, and the take-up reel 20 has a pivot hole 25 and a fixing hole 26, both of which penetrate the base plate 21, the top plate 22, and the middle portion 23. Furthermore, the pivot hole 25 has a lower pivot section 251 with a circular cross-section and an upper pivot section 252 with a square cross-section communicating with the lower pivot section 251. The lower pivot section 251 has an annular abutment portion 251a in one hole wall, and the upper pivot section 252 extends upward from the top plate 22. In addition, the fixing hole 26 has a countersunk hole 261 recessed inward from the bottom plate 21 and a fixing section 262 extending upward from the top plate 22.

[0097] The top cover 40 is a one-piece molded component, comprising a top plate 41 and an annular sidewall 42 extending downward from the top plate 41. Specifically, the top cover 40 has a main drive shaft 411 protruding downward from the top plate 41 and an auxiliary drive shaft 412 protruding downward from the top plate 41 and spaced apart from the main drive shaft 411. Furthermore, the main drive shaft 411 has a countersunk hole 411a extending downward from the top plate 41, and an inner wall surface of the annular sidewall 42 has a plurality of ratchet teeth 421 distributed in a ring, and the ratchet teeth 421 correspond to the first and second pawls 121a and 122a of the base 10.

[0098] The above describes the component structure features of the rope tensioner 1 provided in the first embodiment of the present invention. The following will further describe the assembly and usage of the rope tensioner 1.

[0099] Please refer to Figure 2 , Figure 3 , Figure 4a and Figure 4b In practical applications, the rope tightener 1 of the present invention will be used with a rope 30 (e.g., metal wire, but not limited thereto), the rope 30 including a first end 31, a second end 32, and a body 33 located between the first end 31 and the second end 32.

[0100] In this embodiment, the winding reel 20 is disposed in the accommodating space 13 of the base 10. Specifically, firstly, the lower pivot section 251 of the pivot hole 25 of the winding reel 20 is fitted onto the rotating shaft 14 of the base 10. Then, the first and second ends 31 and 32 of the rope 30 are passed through the first and second through holes 123 and 124 of the annular body 12 of the base 10, and then through the through holes 221 and 222 of the top plate 22 of the winding reel 20. The first and second ends 31 and 32 are then knotted and fixed to the top plate 22 of the winding reel 20. Thus, the body 33 of the rope 30 passes through the first and second through holes 123 and 124 of the annular body 12 of the base 10, so that a portion of the body 33 of the rope 30 is exposed on the base 10, while the remaining body 33 of the rope 30 that is not exposed on the base 10 can be wound up and accommodated in the winding groove 24 of the winding reel 20. However, the method of fixing the first and second ends 31, 32 to the perforations 221, 222 is not limited to knotting; it can also be achieved by gluing, fastening, or other suitable methods.

[0101] After placing the take-up reel 20 in the receiving space 13 of the base 10, the top cover 40 is then fixed to the take-up reel 20. Specifically, since the shape of the main drive shaft 411 of the top cover 40 is complementary to the upper pivot section 252 of the pivot hole 25, the main drive shaft 411 is fitted into the upper pivot section 252; while the shape of the auxiliary drive shaft 412 of the top cover 40 is complementary to the fixed section 262 of the fixed hole 26, the auxiliary drive shaft 412 is fitted into the fixed section 262, thus temporarily fixing the take-up reel 20 and the top cover 30 to each other.

[0102] As can be seen from the above description, the base 10, winding reel 20, rope 30, and top cover 40 are currently temporarily fixed together. The base 10, winding reel 20, and top cover 40 are then locked together using the first fixing screw 50 and the second fixing screw 60. Specifically, the first fixing screw 50 has a head 51 and a threaded body 52 connecting the head 51, and the second fixing screw 60 has a head 61 and a threaded body 62 connecting the head 61. The threaded body 52 of the first fixing screw 50 passes through the countersunk hole 411a of the upper cover 40 and is locked to the rotating shaft 14 of the base 10, and the head 51 of the first fixing screw 50 is located in the countersunk hole 411a of the upper cover 40. The threaded body 62 of the second fixing screw 60 passes through the fixing hole 26 of the take-up reel 20 and is locked to the auxiliary drive shaft 412 of the upper cover 40, and the head 61 of the second fixing screw 60 abuts against a bottom surface of the countersunk hole 261 of the fixing hole 26. The first fixing screw 50 can coaxially lock the base 10, the take-up reel 20 and the upper cover 40, while the second fixing screw 60 can tightly lock the upper cover 40 and the take-up reel 20 together.

[0103] After the rope tensioner 1 is assembled, the winding reel 20 is placed in the accommodating space 13 of the base 10, and the upper cover 40 can drive the winding reel 20 to rotate relative to the pivot 14 of the base 10, and the upper cover 40 can drive the winding reel 20 to a pressed position P1 (e.g., Figure 4a As shown) and a pull-up position P2 (as shown) Figure 4b The displacement between the upper cover 40 and the base 10 is shown. Specifically, when the user presses down on the upper cover 40 so that the upper cover 40 is in the pressed position P1 (as shown) Figure 4a As shown), the ratchet 421 of the upper cover 40 engages with the first and second pawls 121a and 122a of the base 10. Through the engagement of the ratchet 421 with the first and second pawls 121a and 122a, the upper cover 40 causes the winding reel 20 to rotate unidirectionally around the shaft 14. Then, the winding reel 20 moves downwards due to the movement of the upper cover 40, causing the annular locking portion 251a of the winding reel 20 to engage with the first annular groove 141 of the shaft 14. In this way, the user can rotate the upper cover 40, thereby causing the winding reel 20 to move towards the winding groove 24 of the winding reel 20, where the rope 30 can be wound into the winding reel 20. The upper cover 40, along with the winding reel 20, cannot rotate in the opposite direction due to the configuration relationship between the ratchet 421 and the first and second pawls 121a and 122a. Therefore, the rope 30 can remain wound in the winding groove 24 and cannot be pulled out of the winding groove 24. In other words, if the rope tightener 1 provided in this case is applied to shoes, when the user presses down on the upper cover 40 to make the upper cover 40 in the pressed position P1, the user can tighten the shoelaces (the rope 30 referred to in this embodiment) by rotating the upper cover 40, and ensure that the shoelaces can remain in a tightened state without loosening. It is worth mentioning that when the top cover 40 is in the pressed-down position P1, the annular sidewall 42 of the top cover 40 does not completely cover the first and second through holes 123 and 124 of the annular body 12 of the base 10, so that the body 33 of the rope 30 that passes through the first and second through holes 123 and 124 and is exposed on the base 10 can still be wound up and accommodated in the winding groove 24 of the winding reel 20.

[0104] On the other hand, when the top cover is in the pull-up position P2 (e.g.) Figure 4bAs shown), the ratchet 421 of the upper cover 40 is disengaged from the first and second pawls 121a and 122a of the base 10 (only the second pawl 122a is shown in the figure), and at this time, the head 51 of the first fixing screw 50 abuts against the bottom surface of the countersunk hole 411a of the main drive shaft 411, restricting the upward position of the upper cover 40. At the same time, the winding reel 20 is moved upward by the upper cover 40, so that the annular locking part 251a of the winding reel 20 is locked against the second annular groove 142 of the rotating shaft 14 and positioned. In this way, since the ratchet 421 has disengaged from the first and second pawls 121a and 122a, the upper cover 40 can drive the winding reel 20 to rotate arbitrarily. Therefore, the body 33 of the rope 30 can be pulled out from the winding groove 24 of the winding reel 20. In other words, if the rope tightener 1 provided in this case is applied to shoes, the user can loosen the shoelaces.

[0105] However, the rope tightener 1 of the present invention is not limited to that disclosed in this embodiment. The rope tightener 2 of the second embodiment of the present invention is structurally similar to that of the first embodiment, the difference being that the structure of the base 10' is different, such as... Figure 6a As shown, the base 10' has a pivot 14', the outer peripheral surface of the pivot 14' has a first annular groove 141', a second annular groove 142', and a pushing part 143' located between the first and second annular grooves 141' and 142', and the first and second annular grooves 141' and 142' are relatively deep.

[0106] The rope tensioner 2 is structurally similar to the first embodiment, except that the structure of the winding reel 20' is different, such as... Figure 5 As shown, the winding reel 20' has a bottom plate 21' and a top plate 22'. The bottom plate 21' has a first bottom 211', a second bottom 212' spaced apart from the first bottom 211', a connecting portion 213' connecting the first and second bottoms 211' and 212', and a receiving groove 214' located between the first and second bottoms 211' and 212' and the connecting portion 213'. The winding reel 20' also has a middle portion 23' connecting the top plate 22' and the first bottom 211', and a winding groove 24' located between the top plate 22', the first bottom 211' and the middle portion 23'. The rope 30 (e.g.) Figure 3 The method of fixing the take-up slot 24' of the take-up reel 20' (as shown) is exactly the same as in the first embodiment, so it will not be described in detail again.

[0107] In this embodiment, the rope tensioner 2 also provides an elastic element 70, which has two elastic abutment portions 71 and an arc-shaped body 72 located between the elastic abutment portions 71. During actual assembly, each elastic abutment portion 71 of the elastic element 70 abuts against two sides of the connecting portion 213' of the winding reel 20' (e.g., Figure 6a (as shown), and the elastic member 70 is housed in the receiving groove 214' of the winding reel 20' with its arc-shaped body 72.

[0108] Furthermore, when the user presses down on the top cover 40, the elastic element 70, along with the winding reel 20', moves downward relative to the pivot 14' due to the movement of the top cover 40. At this time, the elastic locking portions 71 of the elastic element 70 are pushed by the pushing portions 143' of the pivot 14', accumulating an elastic restoring force. When the top cover 40 is in a position such that... Figure 6a When the upper cover is in the depressed position P1, the elastic locking parts 71 are no longer pushed by the pushing part 143' of the rotating shaft 14' and release their elastic restoring force, causing the elastic locking parts 71 to lock into the first annular groove 141' of the rotating shaft 14' and be positioned. Moreover, the elastic locking parts 71 will make a sound when they lock into the first annular groove 141' of the rotating shaft 14', thereby reminding the user that the winding reel 20' is locked in a fixed position relative to the rotating shaft 14'. In addition, when the upper cover 40 is in the depressed position P1, the operation of the upper cover 40 driving the winding reel 20' to wind up the rope 30 is exactly the same as in the first embodiment, so it will not be described in detail here.

[0109] On the other hand, when the upper cover 40 is pressed down from position P1 (as shown) Figure 6a (As shown) Move to the pull-up position P2 (as shown) Figure 6b During the process shown, the elastic element 70, together with the winding reel 20', is moved upward relative to the rotating shaft 14' by the upper cover 40. At this time, the elastic locking portions 71 of the elastic element 70 are pushed by the pushing portions 143' of the rotating shaft 14' and accumulate an elastic restoring force. When the upper cover 40 moves to the position shown, the elastic element 70 moves upward relative to the rotating shaft 14'. Figure 6b When the upper part P2 is shown, the elastic locking parts 71 are no longer pushed by the pushing part 143' of the rotating shaft 14' and release their elastic restoring force, so that the elastic locking parts 71 are locked against the second annular groove 142' of the rotating shaft 14' and positioned. Moreover, the elastic locking parts 71 will make a sound when locked against the second annular groove 142' of the rotating shaft 14', thereby reminding the user that the winding reel 20' is locked against another fixed position of the rotating shaft 14'. In addition, when the upper cover 40 is in the upper part P2, the operation of the upper cover 40 driving the winding reel 20' to pull the rope 30 out of the winding reel 20' is exactly the same as in the first embodiment, so it will not be described in detail here.

[0110] In summary, the rope tighteners 1 and 2 provided by the present invention move the winding reel 20 or winding reel 20' to the pressing position P1 by the upper cover 40, so that the winding reel 20 rotates in one direction around the rotating shaft 14, or the winding reel 20' rotates in one direction around the rotating shaft 14', thereby winding the body 33 of the rope 30 into the winding groove 24 of the winding reel 20, or winding the body 33 of the rope 30 into the winding groove 24' of the winding reel 20', so as to achieve the function of tightening the rope 30. The rope tighteners 1 and 2 provided by this invention can also move the winding reel 20 or winding reel 20' to the pull-up position P2 via the upper cover 40, thereby pulling the body 33 of the rope 30 out of the winding groove 24 of the winding reel 20, or pulling the body 33 of the rope 30 out of the winding reel 24' of the winding reel 20', to achieve the function of loosening the rope 30, thus achieving the purpose of this invention. Moreover, the rope tighteners 1 and 2 provided by this invention have only a few components, and their structure is simple, and they are easy to assemble and maintain, thus improving the productivity and ease of maintenance of the product. In addition, the rope tighteners 1 and 2 are not limited to use on shoelaces of footwear products, but can also be applied to other items that need to be repeatedly tightened and loosened by the rope 30.

[0111] Finally, it must be stated again that the constituent components disclosed in the foregoing embodiments of the present invention are merely illustrative examples and are not intended to limit the scope of this application. Substitutions or variations of other equivalent components should also be covered by the scope of protection of this application.

Claims

1. A rope tightening device, characterized in that, Includes: A base having a base plate, an annular body extending upward from the base plate, an accommodating space formed by the base plate and the annular body, and a pivot extending upward from the base plate and located in the accommodating space, wherein the annular body has at least one pawl. A reel has a pivot hole that fits onto the rotating shaft, allowing the reel to be rotatably disposed in the receiving space and to slide up and down along the rotating shaft; A top cover is fixed to the take-up reel and can drive the take-up reel to rotate. The top cover has multiple ratchet teeth, each ratchet tooth corresponding to at least one pawl. The top cover can drive the take-up reel to move relative to the base between a depressed position and a pulled-up position. When the top cover is in the depressed position, each ratchet tooth is engaged with the at least one pawl, allowing the top cover to drive the take-up reel to rotate unidirectionally around the axis. When the top cover is in the pulled-up position, each ratchet tooth is disengaged from the at least one pawl, allowing the top cover to drive the take-up reel to rotate arbitrarily. An elastic element is provided on the winding reel, and the elastic element has two elastic locking portions; The outer circumferential surface of the pivot of the base has a first annular groove and a second annular groove. When the top cover is in the pressed position, each of the elastic locking parts of the elastic member is locked in the first annular groove of the pivot. When the top cover is in the pulled position, each of the elastic locking parts of the elastic member is locked in the second annular groove of the pivot. The reel has a base plate, which includes a first bottom, a second bottom spaced apart from the first bottom, and a connecting portion connecting the first and second bottoms; each of the elastic locking portions of the elastic member abuts against two sides of the connecting portion of the reel.

2. The rope tightener according to claim 1, characterized in that, The reel also has a receiving groove located between the first and second bottoms and the connecting portion; the elastic member also has an arc-shaped body located between each of the elastic locking portions, the elastic member is received in the receiving groove of the reel with the arc-shaped body, so that the elastic member and the reel are driven by the top cover to slide up and down relative to the rotating shaft.

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