Shoelace tightening device for ski shoes and sports shoes

Abstract

The utility model relates to the technical field of ski shoes, and discloses a shoelace tightening device for ski shoes and sports shoes, which comprises an upper cover and a base, the top of the base is provided with a reel for tightening a shoelace, the top of the reel is provided with a reduction gear for reducing transmission, the inner side of the reduction gear is provided with a sun gear, and the sun gear is connected with the upper cover. A transmission part is arranged on the outer side of the sun gear, a planet carrier is installed on the outer side of the reduction gear, and a rotary knob used for rotating is installed on the top of the planet carrier. According to the shoelace tightening device for the ski shoes and the sports shoes, through cooperation of the sun gear, the reduction gear and the planet carrier and the transmission principle of the planet gears, the rotating force needed when the shoelaces are tightened is reduced, and the twisting force needed when the shoelaces are tightened is reduced by increasing the rotating distance; therefore, tightening work can be conveniently carried out when small force is used, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of ski boots, in particular to a ski boot and sports shoe lace tightening device. Background Art

[0002] With the rise of outdoor leisure activities in recent years, a wide range of specialized footwear has emerged on the market, including ski boots, cycling shoes, badminton shoes, and other specialized sports footwear. Ski boots, in particular, are particularly difficult for many women to securely fasten, hindering their skiing performance. Therefore, a suitable method is needed to improve these features and make lacing easier. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the utility model provides a ski boot and sports shoe lace tightening device, which solves the problems of inconvenient shoe lace tightening operation and poor tightening effect that may easily lead to danger.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a ski boot and sports shoe lace tightening device, comprising an upper cover and a base, a winding wheel for tightening the shoelaces is provided on the top of the base, a reduction gear for reducing transmission is provided on the top of the winding wheel, a sun gear is provided on the inner side of the reduction gear, a transmission member is provided on the outer side of the sun gear, a planetary carrier is installed on the outer side of the reduction gear, a knob for rotation is installed on the top of the planetary carrier, a central shaft for connection is provided on the top of the knob, the bottom end of the central shaft extends above the winding wheel, a screw is threadedly connected to the bottom end of the central shaft by the bottom of the winding wheel, and the upper cover for protection is clamped with the top of the knob through a barb structure.

[0007] Preferably, the inner hole wall of the knob is provided with an elastic barb for engaging with the central axis, the outer inner wall of the knob is provided with a one-way tooth, and the inner inner wall of the knob is provided with a knob locking tooth for locking.

[0008] Preferably, the top of the planetary carrier is provided with an elastic tooth for limiting one-way rotation, the bottom of the planetary carrier is provided with a fixed seat, the inner wall of the planetary carrier near the bottom is provided with planetary carrier teeth, the outer wall of the fixed seat is provided with a fixed seat V-shaped groove, the end surface of the elastic tooth force platform extending outward is provided with an elastic tooth stopper, the top of the planetary carrier is provided with a force block for blocking the elastic tooth, the end of the elastic tooth is provided with an elastic tooth force platform, and the top of the planetary carrier is provided with a limiting block. When working, the position of the elastic tooth is the position after the elastic tooth is retracted and displaced inward.

[0009] Preferably, a square structure is provided at the bottom end of the central shaft, and a lower inclined surface of the central shaft and an upper inclined surface of the central shaft for clamping and limiting the elastic barbs are provided on the outer wall of the central shaft.

[0010] Preferably, a lock tooth is provided on the top inner wall of the transmission member, and a gear hole is provided on the bottom inner wall of the transmission member.

[0011] Preferably, a gear column for installing a reduction gear is provided on the top of the winding wheel, a square hole for plugging in a square structure is provided on the top of the winding wheel, and a first steel wire hole, a second steel wire hole, a third steel wire hole, a fourth steel wire hole and a rope hole are provided on the surface of the winding wheel.

[0012] Preferably, a fixing platform for mounting the planetary carrier is provided on the top of the base, and a mounting limit block for cooperating with a V-shaped groove of the fixing seat to prevent the planetary carrier from rotating is also provided on the surface of the base.

[0013] Compared with the prior art, the present invention provides a ski boot and sports shoe lace tightening device, which has the following beneficial effects:

[0014] 1. The ski boot and sports shoe lace tightening device, through the cooperation of the sun gear, the reduction gear and the planetary carrier, uses the transmission principle of the planetary gear to reduce the speed of the rotational force required for tightening the shoelaces, and reduces the torsional force required for tightening by increasing the rotation distance, thereby facilitating the tightening work with less force, and is easy to use.

[0015] 2. When tightening and releasing the laces of the ski boots and sports shoes, you only need to pinch the outer contour of the knob and pull it outward. The knob is provided with four elastic hooks. The four elastic structures need to go from the thin diameter position on the central axis to the thick diameter position and switch on the upper inclined surface and the lower inclined surface of the central axis, so that the knob can be switched back and forth between the closed and open states. The switching operation is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an internal exploded view of the utility model;

[0017] Figure 2 This is a schematic diagram of the lower side of the internal explosion of the utility model;

[0018] Figure 3 This is an overall cross-sectional view of the utility model;

[0019] Figure 4 This is a schematic diagram of the barb structure at the bottom of the upper cover of the utility model;

[0020] Figure 5 This is a cross-sectional view of the knob of the utility model in a closed state;

[0021] Figure 6 This is a cross-sectional view of the knob of the utility model in the open state;

[0022] Figure 7 This is the internal structure diagram of the knob of the utility model;

[0023] Figure 8 This is a schematic diagram of the lock tooth structure of the utility model;

[0024] Figure 9 This is a schematic diagram of the gear groove structure of the utility model;

[0025] Figure 10 This is a schematic diagram of the top structure of the planetary carrier of the utility model;

[0026] Figure 11 This is a schematic diagram of the top structure of the planetary carrier of the utility model;

[0027] Figure 12 This is a schematic diagram of the bottom structure of the planetary carrier of the utility model;

[0028] Figure 13 This is a schematic cross-sectional view of the transmission member, central shaft and sun gear of the utility model;

[0029] Figure 14 This is a schematic diagram of the transmission part, central shaft and sun gear bottom structure of the utility model;

[0030] Figure 15 This is a cross-sectional view of the planetary gear set of the present utility model;

[0031] Figure 16 This is a cross-sectional view of the central shaft, rope winding wheel and screw of the utility model;

[0032] Figure 17 This is a schematic structural diagram of the central shaft, rope winding wheel and screw of the utility model;

[0033] Figure 18 This is a schematic diagram of the fixed platform structure of the utility model;

[0034] Figure 19 This is a schematic diagram of the limit block structure of the utility model.

[0035] Among them: 1. Upper cover; 11. Hook structure; 2. Knob; 21. Elastic hook; 23. Knob lock tooth; 24. One-way tooth; 3. Planet carrier; 31. Elastic tooth; 32. Fixed seat; 33. Planet carrier tooth; 34. Fixed seat V-shaped groove; 35. Elastic tooth stopper; 36. Force block; 37. Elastic tooth force platform; 38. Limit block; 39. Elastic tooth position during operation; 4. Center axis; 41. Square structure; 42. Upper inclined surface of the center shaft; 43, lower inclined surface of the center shaft; 5, screw; 6, transmission part; 61, lock tooth; 62, gear hole; 7, sun gear; 8, reduction gear; 9, winding wheel; 91, gear column; 92, square hole; 93A, first steel wire hole; 93B, second steel wire hole; 94A, third steel wire hole; 94B, fourth steel wire hole; 95, rope hole; 10, base; 101, fixing platform; 102, installation limit block. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] See also Figure 1-19The utility model provides a lace tightening device for ski boots and sports shoes, including an upper cover 1 and a base 10. The upper cover 1 is mainly used to decorate and cover the central axis 4. A winding wheel 9 for tightening the shoelaces is provided on the top of the base 10. A reduction gear 8 for speed reduction transmission is provided on the top of the winding wheel 9. A sun gear 7 is provided on the inner side of the reduction gear 8. A transmission member 6 is provided on the outer side of the sun gear 7. A planet carrier 3 is installed on the outer side of the reduction gear 8. A knob 2 for rotation is installed on the top of the planet carrier 3. A central axis 4 for connection is provided on the top of the knob 2. The bottom end of the central axis 4 extends above the winding wheel 9. The screw 5 is threadedly connected to the bottom end of the central axis 4 by the bottom of the winding wheel 9. The upper cover 1 for protection is clamped with the top of the knob 2 through a hook structure 11.

[0039] Knob 2 has two working states, as shown in the following figure: Figure 5 As shown, the knob 2 is in the closed state. When the knob 2 is rotated, the winding wheel 9 can be driven to rotate through other accessories, so that the rope is wound around the winding wheel 9, thereby tightening the rope. The second working state is the open state, such as Figure 6 When opening, you need to pinch the outer contour of the knob 2 and pull it outwards. Because there are four elastic hooks 21 on the knob 2, the four elastic hooks 21 need to go from the thin diameter position on the central axis 4 to the thick diameter position. At this time, a certain resistance is required. Its function is to allow the knob 2 to switch back and forth between the closed and open states, while ensuring that it remains in any working state when not subject to external force.

[0040] Furthermore, the inner hole wall of the knob 2 is provided with an elastic barb 21 for engaging with the central shaft 4, the outer inner wall of the knob 2 is provided with a one-way tooth 24, and the inner inner wall of the knob 2 is provided with a knob locking tooth 23 for locking.

[0041] As attached Figure 5 As shown, the knob 2 is in a closed position. The elastic barb 21 on the knob 2 is positioned on the inclined surface 42 on the central axis. The knob lock teeth 23 on the knob 2 are locked with the lock teeth 61 of the transmission member 6. The rotational force of the knob 2 is transmitted to the transmission member 6, causing the transmission member 6 to rotate. The knob 2 is also provided with a circle of one-way teeth 24. The one-way teeth 24 cooperate with the elastic teeth 31 provided on the planetary carrier 3. When the knob 2 is rotated clockwise, the elastic teeth 31 will not lock with the one-way teeth 24 on the knob 2. If the knob 2 is rotated in the opposite direction, the elastic teeth 31 will lock with the one-way teeth 24 on the knob 2, preventing the knob 2 from rotating in the opposite direction. After the reverse locking, the winding reel 9 is also unable to rotate in the opposite direction, and the rope or wire wound on the winding reel 9 will not be pulled out.

[0042] Furthermore, an elastic tooth 31 for limiting one-way rotation is provided at the top of the planet carrier 3, a fixed seat 32 is provided at the bottom of the planet carrier 3, a planet carrier tooth 33 is provided on the inner wall near the bottom of the planet carrier 3, a fixed seat V-shaped groove 34 is provided on the outer wall of the fixed seat 32, an elastic tooth stopper 35 is provided on the outwardly extending end surface of the elastic tooth force platform 37, a force block 36 for blocking the elastic tooth 31 is provided at the top of the planet carrier 3, an elastic tooth force platform 37 is provided at the end of the elastic tooth 31, and a limiting block 38 is provided at the top of the planet carrier 3. During operation, the elastic tooth position 39 is the position after the elastic tooth 31 is retracted and displaced inward.

[0043] As attached Figure 10-12 The planet carrier 3 is shown. When the knob 2 is installed on the planet carrier 3, the elastic tooth 31 will be pressed to the elastic tooth position 39 during operation and has a certain elasticity. An elastic tooth stopper 35 is provided on the elastic tooth 31, and a limit block 38 is provided on the planet carrier 3. The limit block 38 is used to limit the up and down movement of the elastic tooth stopper 35 to ensure that the knob 2 does not drive the elastic tooth 31 to move up and down when working up and down. A force block 36 is provided on the planet carrier 3, and an elastic tooth force platform 37 is provided on the elastic tooth 31. When the knob 2 is subjected to a force for reverse rotation, the elastic tooth force platform 37 will press against the force block 36 to prevent the knob 2 from rotating in the opposite direction. A fixing seat 32 and a fixing seat V-shaped groove 34 are provided on the planet carrier 3 for fixing the planet carrier 3 on the base 10.

[0044] Furthermore, a square structure 41 is provided at the bottom end of the central shaft 4 , and a central shaft lower inclined surface 43 and a central shaft upper inclined surface 42 are provided on the outer wall of the central shaft 4 for clamping and limiting the elastic barbs 21 .

[0045] As attached Figure 6 As shown, the knob 2 is in the open state. At this time, the elastic hook 21 on the knob 2 is at the lower inclined surface 43 of the central axis, and the knob lock tooth 23 of the knob 2 is separated from the lock tooth 61 of the transmission member 6. At this time, the knob 2 is disconnected from the transmission member 6, and the transmission member 6 can rotate freely. The winding wheel 9 can also rotate freely at the same time. When the shoe rope is pulled outward by external force, the winding wheel 9 will rotate counterclockwise and the shoe rope will be pulled out.

[0046] Furthermore, a lock tooth 61 is provided on the top inner wall of the transmission member 6, and a gear hole 62 is provided on the bottom inner wall of the transmission member 6.

[0047] As attached Figure 13-14 As shown, in any working state, a part of the sun gear 7 is always embedded in the gear hole 62 of the transmission member 6, and rotates around the central axis 4. When the knob 2 is turned, the transmission member 6 drives the sun gear 7 to rotate. When the shoelace is opened, the sun gear 7 drives the transmission member 6 to rotate.

[0048] Furthermore, a gear column 91 for installing the reduction gear 8 is provided on the top of the winding wheel 9, a square hole 92 for plugging in the square structure 41 is provided on the top of the winding wheel 9, and a first steel wire hole 93A, a second steel wire hole 93B, a third steel wire hole 94A, a fourth steel wire hole 94B and a rope hole 95 are provided on the surface of the winding wheel 9.

[0049] As attached Figure 15 As shown, four reduction gears 8 rotate around sun gear 7. Reduction gears 8 have a circular hole in their centers and are mounted on four gear posts 91 on a winding reel 9. The outer rings of the four reduction gears 8 rotate around planetary carrier 3, which remains stationary in all operating states. When sun gear 7 rotates, the four reduction gears 8 also rotate, driving the winding reel 9 in turn.

[0050] As attached Figure 16-17 As shown, a square structure 41 is provided at the lower end of the central shaft 4, and a square hole 92 matching the central shaft 4 is also provided on the winding wheel 9. After the central shaft 4 is assembled on the winding wheel 9, the central shaft 4 cannot rotate by itself. The screw 5 enters from the bottom of the rope wheel and is fastened with the thread at the bottom of the central shaft 4. The winding wheel 9 is provided with two groups of wire holes and one group of rope holes. Each group of wire holes corresponds to two holes. The steel wire is installed by first inserting one end of the wire rope into the second wire hole 93B, then turning around and inserting it into the first wire hole 93A, and then passing it out from the other end of the first wire hole 93A. The steel wire is folded after passing through. , and then pull the steel wire in reverse into the first steel wire hole 93A. Because the first steel wire hole 93A is a tapered hole, the steel wire will be stuck in the first steel wire hole 93A. Similarly, the other end of the wire rope is first inserted into the fourth steel wire hole 94B, and then turns around and inserts into the third steel wire hole 94A, and passes out from the other end of the third steel wire hole 94A. The steel wire is folded after passing through, and then the steel wire is pulled in reverse into the third steel wire hole 94A. There are two rope holes 95. The rope hole 95 is used to install the Dyneema rope. The rope is inserted into the rope hole 95, and the inserted end is knotted. It cannot be pulled out after the knot is tied.

[0051] Furthermore, a fixing platform 101 for mounting the planet carrier 3 is provided on the top of the base 10, and an installation limit block 102 for cooperating with the fixing seat V-shaped groove 34 to prevent the planet carrier 3 from rotating is also provided on the surface of the base 10.

[0052] As attached Figure 18-19 As shown, when the planet carrier 3 is assembled on the base 10 , the fixing platform 101 fixes the planet carrier 3 to the base 10 , and the installation limit block 102 cooperates with the fixing seat V-shaped groove 34 to prevent the planet carrier 3 from rotating.

[0053] When in use, when performing the locking operation, push the knob 2 so that the elastic barb 21 is stuck in the inside of the inclined surface 42 on the central axis to maintain the locking state, and then rotate the knob 2. The knob lock teeth 23 on the knob 2 are locked with the lock teeth 61 of the transmission member 6. The rotational force of the knob 2 is transmitted to the transmission member 6, causing the transmission member 6 to rotate. The transmission member 6 drives the sun gear 7 to rotate through the gear hole 62. The sun gear 7 drives the reduction gear 8 to rotate along the outside of the gear column 91. When the reduction gear 8 rotates, it rolls along the inside of the planetary carrier teeth 33 under the restriction of the planetary carrier teeth 33. The reduction gear 8 rolls along the inside of the planetary carrier teeth 33. When rolling, the gear column 91 drives the winding wheel 9 to rotate, thereby tightening the shoelaces through the rotation of the planetary frame 3; when unlocking, pinch the outer contour of the knob 2 and pull it outward, and the knob 2 drives the elastic hook 21 to move from the upper inclined surface 42 of the central axis to the inner side of the lower inclined surface 43 of the central axis, and the knob locking teeth 23 of the knob 2 are separated from the locking teeth 61 of the transmission member 6. At this time, the knob 2 is disconnected from the transmission member 6, and the transmission member 6 can rotate freely. The winding wheel 9 can also rotate freely at the same time. The shoelaces wrapped around the outside of the winding wheel 9 can be pulled out by directly pulling the shoelaces, thereby completing the unlocking operation. The operation is simple and easy to use.

[0054] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ski boot and sports shoe lace tightening device, comprising an upper cover (1) and a base (10), characterized in that: A reel (9) for tightening shoelaces is provided on the top of the base (10), a reduction gear (8) for reducing transmission is provided on the top of the reel (9), a sun gear (7) is provided on the inner side of the reduction gear (8), a transmission member (6) is provided on the outer side of the sun gear (7), a planetary frame (3) is installed on the outer side of the reduction gear (8), a knob (2) for rotation is installed on the top of the planetary frame (3), a central shaft (4) for connection is provided on the top of the knob (2), the bottom end of the central shaft (4) extends above the reel (9), a screw (5) is connected to the bottom end of the reel (9) and the bottom end of the central shaft (4) by a thread, and a protective upper cover (1) is clamped with the top of the knob (2) through a hook structure (11).

2. The ski boot and sports shoe lace tightening device according to claim 1, characterized in that: The inner hole wall of the knob (2) is provided with an elastic barb (21) for engaging with the central shaft (4), the outer inner wall of the knob (2) is provided with a one-way tooth (24), and the inner inner wall of the knob (2) is provided with a knob locking tooth (23) for locking.

3. The ski boot and sports shoe lace tightening device according to claim 1, characterized in that: The top of the planet carrier (3) is provided with an elastic tooth (31) for limiting unidirectional rotation, the bottom of the planet carrier (3) is provided with a fixed seat (32), the inner wall of the planet carrier (3) close to the bottom is provided with a planet carrier tooth (33), the outer wall of the fixed seat (32) is provided with a fixed seat V-shaped groove (34), the end surface of the elastic tooth force platform (37) extending outward is provided with an elastic tooth stopper (35), the top of the planet carrier (3) is provided with a force block (36) for blocking the elastic tooth (31), the end of the elastic tooth (31) is provided with an elastic tooth force platform (37), and the top of the planet carrier (3) is provided with a limiting block (38). When working, the elastic tooth position (39) is the position after the elastic tooth (31) is displaced inwardly.

4. The ski boot and sports shoe lace tightening device according to claim 2, characterized in that: The bottom end of the central shaft (4) is provided with a square structure (41), and the outer wall of the central shaft (4) is provided with a central shaft lower inclined surface (43) and a central shaft upper inclined surface (42) for clamping and limiting the elastic barb (21).

5. The ski boot and sports shoe lace tightening device according to claim 1, characterized in that: The top inner wall of the transmission member (6) is provided with a lock tooth (61), and the bottom inner wall of the transmission member (6) is provided with a gear hole (62).

6. The ski boot and sports shoe lace tightening device according to claim 4, characterized in that: The top of the winding wheel (9) is provided with a gear column (91) for installing a reduction gear (8), the top of the winding wheel (9) is provided with a square hole (92) for plugging the square structure (41), and the surface of the winding wheel (9) is provided with a first steel wire hole (93A), a second steel wire hole (93B), a third steel wire hole (94A), a fourth steel wire hole (94B) and a rope hole (95).

7. The ski boot and sports shoe lace tightening device according to claim 3, characterized in that: A fixing platform (101) for mounting the planetary carrier (3) is provided on the top of the base (10), and a mounting limit block (102) for cooperating with the fixing seat V-shaped groove (34) to prevent the planetary carrier (3) from rotating is also provided on the surface of the base (10).

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