Pressing type lacing device

Abstract

The invention discloses a pressing type lacing device which comprises a pressing type gear switching mechanism which is used for providing a first gear and a second gear for the pressing type lacing device, so that the pressing type lacing device can be driven to rotate after pressing force is applied to the pressing type gear switching mechanism and the pressing force is released. And the pressing type lacing device can be selectively switched to the first gear or the second gear. The pressing type lacing device is light and convenient to operate during gear switching, and can meet the requirements of vast users.

Description

Technical Field

[0001] The present invention relates to the field of daily necessities, and particularly to a push-type lacing device. Background Art

[0002] Although there are currently various lacing devices, the lacing devices all have two operation modes: tightening the lace and loosening the lace. The early lacing devices released the lace by continuously applying pressure to a knob. This way of releasing the lace by continuously applying an external force is very inconvenient to operate and is generally only suitable for fine adjustment of the tightness. Currently, the most widely used mechanism for switching operation modes is the detent-ring gear position switching mechanism. This mechanism uses the protrusions on the detent and the protrusions in the ring gear, and the two are interlocked with each other to achieve positioning of different gear positions. The lacing device using the detent-ring switching mechanism is generally realized by pulling or pressing the knob. This implementation method is still difficult to operate for children or people with inflexible fingers.

[0003] There is an urgent need for a lacing device that is convenient and labor-saving to switch gears to enrich the selection of lacing device products and meet the usage needs of more people. Summary of the Invention

[0004] The present invention relates to a push-type lacing device, which includes a housing, a rotary cover, and a spool. The rotary cover is rotatably disposed on the housing. The spool is supported by the housing and is rotatable relative to the housing. The spool is detachably connected to the rotary cover.

[0005] The push-type lacing device further includes a push-type gear position switching mechanism for providing a first gear position and a second gear position for the push-type lacing device. When the push-type lacing device is in the first gear position, the rotary cover is engaged with the spool. When the push-type lacing device is in the second gear position, the rotary cover is disengaged from the spool. After applying a pressing force to the push-type gear position switching mechanism and releasing the pressing force, the push-type lacing device can selectively switch to the first gear position or the second gear position.

[0006] Preferably, the push-type gear position switching mechanism includes a first member and a movable member coaxially arranged, and an elastic member for providing a resetting force for the axial movement of the movable member. The first member includes a first limiting surface and a second limiting surface. The first limiting surface is used to define the first resetting end point of the movable member, and the second limiting surface is used to define the second resetting end point of the movable member. The elastic member acts on the movable member to enable it to selectively reset to the first resetting end point or the second resetting end point. After applying a pressing force to the movable member and releasing the pressing force, the movable member can selectively reset to the first resetting end point or the second resetting end point.

[0007] When the movable member is reset to the first reset end point, the push - type lacing device is in the first gear position, and at this time, the rotary cover is engaged with the wire reel; when the movable member is reset to the second reset end point, the push - type lacing device is in the second gear position, and at this time, the rotary cover is disengaged from the wire reel.

[0008] Preferably, the first member includes a first end and a second end that are axially opposite. The first end of the first member is provided with the first limiting surface and the second limiting surface, and the distances from the first reset end point and the second reset end point to the reference plane of the second end of the first member along the axial direction are different.

[0009] The "distances from the first reset end point and the second reset end point to the reference plane of the second end of the first member along the axial direction" refers to: the axial distances from the first or second reset end point to the reference plane of the second end of the first member. The second - end reference plane is the plane where the second - end end face is located or the virtual plane of the second end. Among them, when the second - end end face of the first member is perpendicular to the axis direction of the first member, the second - end reference plane is the plane where the second - end end face is located; when the second - end end face is an irregular surface, the second - end reference plane is the virtual plane of the second end. The so - called virtual plane of the second end is a plane passing through any point on the second - end end face and perpendicular to the axis direction of the first member.

[0010] Preferably, the push - type gear - shifting mechanism further includes a second member coaxially arranged with the first member and the movable member. The movable member moves between the first member and the second member, and a stop surface is provided on the end face of the second member to define the moving end point of the movable member.

[0011] Preferably, the rotary cover is connected to the movable member. After applying a pressing force to the rotary cover and then releasing the pressing force, the push - type lacing device can selectively switch to the first gear position or the second gear position. That is to say, after a process of applying - releasing the pressing force ends, the lacing device completes one gear - shifting; rather than switching to one gear position when continuously applying the pressing force and switching to another gear position when releasing the pressing force.

[0012] Preferably, a push - type lacing device includes a housing, a rotary cover, and a wire reel. The rotary cover is rotatably arranged on the housing, the wire reel is supported by the housing and can rotate relative to the housing, and the wire reel is detachably connected to the rotary cover;

[0013] The push - type lacing device further includes a push - type gear - shifting mechanism. The push - type gear - shifting mechanism includes a first member and a second member, and further includes a movable member that moves between the first member and the second member, and an elastic member that provides a restoring force for the axial movement of the movable member. Wherein the first member, the second member, and the movable member are coaxially arranged. A stop surface is provided on the end surface of the second member to define the end point of the movement of the movable member. The first member includes a first end and a second end that are opposite to each other along the axis. A first limiting surface is provided at the first end of the first member to define the first restoring end point of the movable member, and a second limiting surface is further provided at the first end of the first member to define the second restoring end point of the movable member. The elastic member acts on the movable member to enable it to selectively return to the first restoring end point or the second restoring end point. The distances from the first restoring end point and the second restoring end point to the reference surface of the second end of the first member along the axis are different;

[0014] The rotary cap is connected to the movable member. Thus, after applying a pressing force to the rotary cap and then releasing the pressing force, the movable member can selectively return to the first restoring end point or the second restoring end point;

[0015] When the movable member returns to the first restoring end point, the push - type lacing device is in the first gear position, and at this time the rotary cap is engaged with the wire spool; when the movable member returns to the second restoring end point, the push - type lacing device is in the second gear position, and at this time the rotary cap is disengaged from the wire spool.

[0016] In this application, the so - called "coaxially arranged" means that the axes of two or more components coincide with each other or are parallel to each other. The so - called "axial direction" is the axis direction. The axial direction in this application can coincide with the axis direction or be parallel to each other.

[0017] Further, when applying a pressing force to the rotary cap, the rotary cap drives the movable member to move axially to the stop surface of the second member and slide along the stop surface to the end point of the movement. And when releasing the pressing force, the movable member returns to the first restoring end point under the action of the elastic member, and at this time the rotary cap is engaged with the wire spool; or the movable member returns to the second restoring end point under the action of the elastic member, and at this time the rotary cap is disengaged from the wire spool.

[0018] Further preferably, the movable member includes a locking portion. When a pressing force is applied to the rotary cap, the rotary cap drives the movable member to move axially until the locking portion abuts against the stop surface of the second member and slides along the stop surface to the movement end point; when the pressing force applied to the rotary cap is released, the movable member is reset to the first reset end point under the action of the elastic member, and at this time the rotary cap meshes with the spool; or the movable member is reset to the second reset end point under the action of the elastic member, and at this time the rotary cap disengages from the spool.

[0019] Optionally, when the pressing force applied to the rotary cap is released, the movable member moves axially under the action of the elastic member until it abuts against the first limiting surface and slides along the first limiting surface to the first reset end point, and at this time the lacing device is in the first gear position.

[0020] Optionally, when the pressing force applied to the rotary cap is released, the movable member moves axially under the action of the elastic member until it abuts against the second limiting surface and slides along the second limiting surface to the second reset end point, and at this time the lacing device is in the second gear position. Specifically, by pressing and releasing the external force applied to the rotary cap for the first time, the rotary cap is in the first gear position; by pressing and releasing the external force applied to the rotary cap for the second time, the rotary cap is in the second gear position.

[0021] Preferably, the spool has an inner cavity, and at least part of the push-button gear shifting mechanism is disposed in the inner cavity of the spool. "At least part of the push-button gear shifting mechanism is disposed in the inner cavity of the spool" means that at least one of the first member, the second member, the movable member, and the elastic member is disposed in the inner cavity of the spool, or at least a part of one of the components is disposed in the inner cavity of the spool.

[0022] Preferably, the rotary cap is provided with a driving tooth, and the spool is provided with a driven tooth. The rotary cap and the spool are detachably connected by the engagement and disengagement of the driving tooth and the driven tooth.

[0023] Preferably, the rotary cap and the movable member are coaxially arranged. That is: the rotary cap is coaxially arranged with the first member, the second member, and the movable member.

[0024] Further, the rotary cap and the movable member are locked in the axial direction and can rotate relative to each other in a plane perpendicular to the axial direction.

[0025] Further, the rotary cap and the movable member are connected by a snap structure.

[0026] Further, the rotary cap is provided with a buckle head, and the movable member is provided with a buckle groove. The buckle head is inserted into the buckle groove to connect the rotary cap and the movable member. The snap connection formed by the buckle head - buckle groove can restrict the axial relative displacement between the rotary cap and the movable member.

[0027] In other preferred embodiments, the screw cap is provided with a buckle groove, the movable member is provided with a buckle head, and the buckle head is inserted into the buckle groove to connect the screw cap and the movable member.

[0028] Preferably, an opening is provided on the screw cap, and the front end of the movable member is disposed in the opening of the screw cap. At this time, the user can directly apply a pressing force to the movable member.

[0029] In other preferred embodiments, the movable member is connected to the wire winding cylinder, so that the movable member and the wire winding cylinder are axially locked and can rotate relative to each other on a plane perpendicular to the axial direction. At this time, the axial displacement of the movable member drives the wire winding cylinder to move axially, thereby realizing the separable connection between the screw cap and the wire winding cylinder.

[0030] In the present application, the end of the movable member facing or approaching the first member is defined as the "front end of the movable member", and the end of the movable member facing or approaching the second member is defined as the "end of the movable member". Further, the movable member includes a locking portion, the stop surface of the second member defines the moving end point of the locking portion, the first limiting surface includes a sliding portion for guiding the sliding of the locking portion and a locking portion for defining the first reset end point of the locking portion, the second limiting surface includes a sliding portion for guiding the sliding of the locking portion and a locking portion for defining the second reset end point of the locking portion, and the moving end point of the locking portion is axially opposite to the sliding portion of the first limiting surface or axially opposite to the sliding portion of the second limiting surface.

[0031] Further, the first member is cylindrical, the first reset end point and the second reset end point are offset in the circumferential direction of the cylindrical first member, and the movable member can rotate around the axial direction, so as to be selectively reset to the first reset end point or the second reset end point.

[0032] Further, the first member is disposed in the inner cavity of a cylindrical member. A plurality of first serrated grooves and a plurality of second serrated grooves are provided on the first end surface of the first member, and the first serrated grooves and the second serrated grooves are sequentially spaced apart along the circumference and arranged in a cycle. The tooth top of the first serrated groove defines the first reset end point, the tooth top of the second serrated groove defines the second reset end point, and the depth of the first serrated groove is less than the depth of the second serrated groove.

[0033] In the present application, the open end of the serrated groove is defined as the "tooth bottom of the serrated groove", the bottom of the serrated groove is defined as the "tooth top of the serrated groove", and the side surface between the tooth bottom and the tooth top of the serrated groove is defined as the "tooth surface of the serrated groove". Among them, the "depth of the serrated groove" refers to the height from the tooth top to the tooth bottom of the serrated groove.

[0034] Further, the tooth surface and the tooth crest of the first serrated groove constitute the first limiting surface, and the tooth surface and the tooth crest of the second serrated groove constitute the second limiting surface.

[0035] Further, the tooth surface of the first serrated groove constitutes the sliding part of the first limiting surface, and the tooth crest of the first serrated groove constitutes the locking part that defines the first reset end point of the locking portion.

[0036] Further, the tooth surface of the second serrated groove constitutes the sliding part of the second limiting surface, and the tooth crest of the second serrated groove constitutes the locking part that defines the second reset end point of the locking portion.

[0037] Further, the distances from the bottoms of the plurality of first serrated grooves and the bottoms of the plurality of second serrated grooves to the reference plane of the second end of the first member along the axial direction are the same. The definition of the distance here is the same as the definition of "the distance from the first reset end point or the second reset end point to the reference plane of the second end along the axial direction" described in the previous text.

[0038] Preferably, the second member is fixed inside the inner cavity of the cylindrical member.

[0039] Preferably, the positions of the first member and the second member are relatively fixed.

[0040] More preferably, the second member and the first member are connected by a snap structure.

[0041] Further, the second member is a guiding cylinder, and a stop surface formed by a circle of serrated grooves is provided on the end surface of the guiding cylinder, and the tooth crest of each serrated groove on the stop surface defines the moving end point of the movable member.

[0042] In this application, the so-called "tooth crest of the sawtooth groove defines the reset end point or the movement end point" means that in the ideal state or relatively ideal state, the reset end point or the movement end point is the tooth crest of the sawtooth groove. The so-called ideal state means that it is assumed that the volume of the locking portion of the movable member is infinitely small, small enough to slide from the tooth surface to the tooth crest position. Since the force exerted by the tooth crest on the locking portion can cancel the axial upward component force exerted by the elastic member on the movable member, and there is no lateral component force at the same time, the movable member or its locking portion can remain relatively stationary at the tooth crest of the sawtooth groove, thus locking the position. The so-called relatively ideal state means that the tooth crest area of the sawtooth groove is very large, large enough to accommodate the volume of the locking portion. At this time, the locking portion can also move to the tooth crest position and remain stationary. The reset end point or the movement end point in these two cases is the tooth crest of the sawtooth groove. However, in actual situations, the locking portion of the movable member has a certain volume. Due to the volume, the movable member is clamped by the tooth surfaces on both sides of the sawtooth groove before reaching the tooth crest position. At this time, the resultant force of the lateral component forces exerted by the tooth surfaces on both sides on the locking portion is zero. Therefore, the locking portion can be locked and remain stationary at a position near the tooth crest. At this time, the position near the tooth crest of the sawtooth groove is the reset end point or the movement end point. In short, the existence of the included angle structure of the tooth crest provides the possibility for the movement end point or the reset end point, and the specific distance between the reset end point or the movement end point and the tooth crest is related to factors such as the area of the tooth crest, the tooth crest angle, and the volume of the locking portion. Therefore, the tooth crest of the sawtooth groove defining the reset end point or the movement end point does not mean that the reset end point or the movement end point is the tooth crest of the sawtooth groove. Further, the tooth surface of each sawtooth groove on the stop surface guides the locking portion to slide to the movement end point.

[0043] When the locking portion is on the tooth surface of the sawtooth groove, since the tooth surface is an inclined surface, the force it exerts on the locking portion not only has an axial downward component force but also has a lateral component force. This lateral component force enables the locking portion to move in a circular motion. Therefore, when the locking portion is on the tooth surface of the sawtooth groove, its movement mode includes a component movement in the axial direction and a component movement in the circumferential direction, so that the locking portion can slide along the tooth surface. The movement principle of the locking portion located on the tooth surface of the first sawtooth groove or the second sawtooth groove is the same, and will not be elaborated here. Further, the tooth crest of each sawtooth groove on the stop surface is axially opposite to the tooth surface of the first sawtooth groove or axially opposite to the tooth surface of the second sawtooth groove.

[0044] Further, the elastic member is located inside the guiding cylinder, one end of which abuts against the movable member, and the other end abuts against the bottom surface of the guiding cylinder.

[0045] Further preferably, one end of the elastic member abuts against the end face of the end of the movable member.

[0046] Further, the movable member is cylindrical, and a locking portion is provided on the cylindrical side surface of the movable member. The locking portion moves between the first end surface of the first member and the end surface of the second member provided with a stop surface and is reset under the action of the elastic member.

[0047] Further preferably, the locking portion is a convex column.

[0048] Further, the movable member, the second member, and the elastic member are all located inside the cavity of the cylindrical member.

[0049] Preferably, the front end of the movable member extends out of the top of the cylindrical member. In this application, the side of the cylindrical member close to the first member is the top, and the side close to the second member is the bottom.

[0050] The beneficial effects of the present invention include the following aspects:

[0051] 1. By switching the movable member of the push-type gear position switching mechanism between the first reset end point and the second reset end point, two operating gears are provided for the lacing device. In the first gear, the rotary cover is engaged with the winding drum, so that the rotation of the rotary cover can drive the winding drum to tighten the lacing; when a pressing and releasing action is performed, it will switch to the second gear, and the rotary cover is disengaged from the winding drum, and the winding drum can rotate freely under the tension of the lacing. Since the pressing action and the switching are performed under the elastic force, a lighter feel can be provided to the user.

[0052] 2. For the currently commonly used pin-ring gear position switching mechanism, due to severe wear after repeated interlocking between the convex portion of the pin and the ring, the service life of the lacing device is affected; in this application, the movable member reciprocates between the moving end point and the reset end point under the elastic force of the elastic member, and there is no problem of wear caused by repeated buckling and unbuckling;

[0053] 3. The rotary cover is connected to the movable member and locked axially, but can rotate relative to each other circumferentially, so that the rotary cover and the movable member have a linkage effect axially. No matter which operating gear the lacing device is in, the rotary cover cannot be separated from the movable member axially at will. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is an exploded structural schematic diagram of the rotary cover, the ratchet ring, the outer shell, and the winding drum of the lacing device of the present invention;

[0055] Figure 2 is Figure 1 another structural schematic diagram of the rotary cover of the lacing device shown;

[0056] Figure 3 is an exploded structural schematic diagram of the push-type gear position switching mechanism of the present invention;

[0057] Figure 4 is Figure 3 a schematic assembly structure diagram of the push - type gear shifting mechanism shown;

[0058] Figure 5a is Figure 4 a top - view of the assembly structure of the cylindrical part and the guiding cylinder in the push - type gear shifting mechanism shown;

[0059] Figure 5b is Figure 5a a sectional view along the F - F direction in the shown assembly structure;

[0060] Figure 6 is a schematic diagram of the movement track of the raised column of the movable part in Figure 5b the shown assembly drawing;

[0061] Figure 7 is Figure 1 and Figure 3 an overall schematic diagram of all components after assembly of the shown structure;

[0062] Figure 8 is Figure 7 a top - view of the shown overall structure;

[0063] Figure 9 is Figure 8 an A - A sectional view of the shown overall structure;

[0064] Figure 10 is Figure 8 a B - B sectional view of the shown overall structure.

[0065] The names corresponding to the labels in the figure are:

[0066] 1. Rotating cap; 11. Buckle head; 12. Inner ratchet; 13. Driving gear; 2. Anti - reverse gear ring; 21. Block; 22. Offsettable member; 23. Central ring; 221. Engaging tooth; 3. Outer shell; 31. Card slot; 32. Inlet hole; 33. Stopping member; 4. Reel; 41. Driven gear; 5. Cylindrical part; 51. Limiting cylinder; S1. First limiting surface; S2. Second limiting surface; 52. Sliding part of the first limiting surface; 53. Sliding part of the second limiting surface; D1. Tooth top of the first serrated groove; D2. Tooth top of the second serrated groove; 6. Movable part; 61. Raised column; 62. Buckle groove; 7. Spring; 8. Guiding cylinder; 81. Stopping surface; D3. Tooth top of the serrated groove; 9. Base; X. Central axis; E1. First end; E2. Second end. Detailed implementation manners

[0067] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, where the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0068] It should be understood that the terms indicating orientation or positional relationship used in the description of the present invention, such as "upper", "lower", "left", "right", "front", "rear", "length", "width", "horizontal", "vertical", "top", "bottom", "inner", "outer", etc., are all based on the orientation or positional relationship shown in the accompanying drawings, and are intended to facilitate the description of the present invention and simplify the description, and should not be construed as a limitation on the device or component that must have a specific orientation or specific positional relationship.

[0069] In addition, the terms "first" and "second" are only used for the purpose of differential description, without the connotation of relative importance, and are not intended to indicate or imply the number of technical features. Therefore, the features defined by "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

[0070] Unless otherwise clearly specified, terms such as "connection" and "fixation" in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral molding; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] The present invention discloses a push-button lacing device, including a wire winding mechanism and a push-button gear shifting mechanism. The wire winding mechanism is used to wind or unwind a wire belt, and the push-button gear shifting mechanism enables the winding device to switch between a first gear and a second gear. When the wire winding mechanism is in the first gear, rotating the wire winding mechanism can wind the winding cylinder, thereby tightening the wire belt; when the wire winding mechanism is in the second gear, rotating the wire winding mechanism cannot wind the winding cylinder, that is, it idles, and the winding cylinder can be driven to rotate by pulling the wire belt, thereby loosening the wire belt.

[0072] The wire belt here can be used in various occasions where it needs to be tightened or loosened. Commonly, such as shoelaces, the lacing device can be installed on the shoe upper, and the shoelaces are threaded through it and pass through the winding cylinder, so as to tighten or loosen the shoe upper by winding or unwinding. Of course, the object to be laced by the lacing device of the present invention can also be other occasions, such as coat buttons, neck ropes of helmets or hats, curtain ties, and so on. The use of the lacing device in this article is not limited.

[0073] In one embodiment, the wire winding mechanism is as Figure 1 , Figure 2As shown. As shown in the figure, the wire winding mechanism includes a rotary cap 1, a ratchet ring 2, a housing 3, a wire spool 4, and a base 9.

[0074] As Figure 1 , Figure 2 shown, the rotary cap 1 is located at the uppermost or outermost end of the entire wire winding mechanism and is the operation end for the user. Its outer surface is provided with a rough surface that facilitates user operation and increases friction. The rotary cap 1 can rotate around a central axis X perpendicular to its outer surface. This central axis X is the axis of the rotary cap 1 and is also the axis of the entire wire winding mechanism and the lacing device. The direction parallel to this axis is the axial direction. Here, the rotary cap 1, the ratchet ring 2, the housing 3, and the wire spool 4 are all coaxially arranged, that is, their central axes coincide.

[0075] On the inner surface of the rotary cap 1, there is an inner ratchet 12 centered on its central axis X. The inner ratchet 12 is composed of a ring of ratchet teeth. The inner ratchet 12, the displaceable member 22 of the ratchet ring 2, and the stop member 33 on the housing form a reverse prevention mechanism, which has the function of only allowing the inner ratchet 12 to rotate in one direction and preventing reverse rotation. As Figure 1 shown, the ratchet ring 2 includes three displaceable members 22 and a central ring 23. The three displaceable members 22 are connected to the central ring 23 and are integrally formed. The three displaceable members 22 are fixedly connected to the housing 3 through the central ring 23. Specifically, on the lower surface of the central ring 23 of the ratchet ring 2, there are protruding blocks 21, and corresponding slots 31 are opened at the corresponding positions on the housing 3. The ratchet ring 2 is assembled with the housing 3 by inserting the blocks 21 into the slots 31 and cannot rotate. The displaceable member 22 includes an engaging head and an elastic arm. The engaging head includes an engaging tooth 221, and the engaging tooth 221 can engage with the inner ratchet 12 on the rotary cap 1. There are stop members 33 provided on the housing 3. In this embodiment, there are three stop members 33 provided on the housing 3, and the three stop members 33 are integrally formed with the housing 3. When the ratchet ring 2 is assembled to the housing 3, the three stop members 33 and the three displaceable members 22 are arranged in one-to-one correspondence and are located on the counterclockwise side of the engaging head. When an external force in the loosening direction is applied to the rotary cap, in this embodiment, the loosening direction of the lacing device is the counterclockwise direction. The side wall of the inner ratchet biases the engaging tooth 221 of the displaceable member 22, causing the displaceable member to shift in the counterclockwise direction until its engaging head abuts against the stop member 33. At this time, the stop member 33 prevents the engaging head from further shifting in the counterclockwise direction. Therefore, the engaging tooth 221 and the inner ratchet 12 always remain engaged, and the rotary cap 1 (inner ratchet 12) cannot rotate in the loosening direction, achieving the effect of preventing reverse rotation.

[0076] The housing 3 is located below the rotary cap 1. The housing 3 is detachably mounted in the inner cavity of the base 9, and the base 9 is used to fix items such as the shoe upper to be fastened. The interior of the housing 3 is a cavity. The spool 4 is inserted into the housing 3 from the lower opening of the housing 3 upwards, and the spool 4 also has an inner cavity. There is a through-hole in the center of the upper end face of the housing 3, and the central ring 23 of the anti-reverse gear ring 2 also has a through-hole. The upper end of the spool 4 is provided with a driven gear 41 protruding from its upper end face. The driven gear 41 is distributed around the central axis for one week, and the driven gear 41 protrudes from the through-holes of the housing 3 and the anti-reverse gear ring 2. A circle of matching driving teeth 13 is provided on the inner surface of the rotary cap 1 corresponding to the position of the driven gear 41, and the driving teeth 13 are located inside the inner ratchet 12.

[0077] When the rotary cap 1 is installed on the housing 3 and the winding mechanism is in the first gear position, the driving teeth 13 in the rotary cap 1 are engaged with the driven gear 41 on the spool 4. At the same time, the inner ratchet 12 is assembled and engaged with the displaceable member 22 of the anti-reverse gear ring 2. At this time, when the rotary cap 1 is rotated clockwise, it rotates relative to the anti-reverse gear ring 2 and cannot rotate back, and at the same time drives the spool 4 to rotate. When the winding mechanism is in the second gear position, the rotary cap 1 moves axially upwards until the driving teeth 13 leave the tooth surface of the driven gear 41, then the rotary cap 1 disengages from the engagement with the spool 4 and can no longer drive the spool 4 to wind the tape.

[0078] For winding the tape, as Figure 1 shown, an inlet hole 32 is provided on the side surface of the housing 3. There are at least two inlet holes 32 for the tape to enter the cavity of the housing from here and be coupled with the spool 4. When the spool 4 is driven to rotate by the rotary cap 1, it will drive the tape to wind between the inner wall of the housing 3 and the outer wall of the spool 4, so as to fasten the tape. When the spool 4 disengages from the engagement with the rotary cap 1, the spool 4 can rotate freely, and the pulling force applied by the tape will drive the spool 4 to reverse wind, so as to loosen the tape.

[0079] When this winding mechanism is in use, when the winding mechanism is in the first gear position, the driving teeth 13 on the rotary cap 1 are engaged with the driven gear 41 on the spool 4. At this time, the rotation of the rotary cap 1 can drive the spool 4 to rotate together. Rotate the rotary cap 1 in the tightening direction (clockwise direction), and a clear "click click" sound can be heard. At this time, the engaging teeth 221 of the anti-reverse gear ring 2 are engaged with the inner ratchet 12 on the rotary cap 1. The rotary cap 1 drives the spool 4 to rotate in the tightening direction, and the tape is wound around the spool 4 one by one. The item to be fastened is slowly tightened by the tape until it feels the right tightness. If it feels too tight, it can be switched to the second gear through the gear shifting mechanism. At this time, the driving teeth 13 and the driven gear 41 on the rotary cap 1 and the spool 4 are disengaged. At this time, the tight tape will drive the spool to rotate in reverse, loosening the item. By repeatedly switching gears, the item to be fastened can be adjusted to the right tightness.

[0080] The above-mentioned winding mechanism is one of the embodiments of the corresponding components in the lacing device of the present invention. The internal ratchet-offset member-stop member is one of the implementation manners to achieve the anti-reverse function, and it can also be other mechanisms, such as an elastic pawl-ratchet mechanism or other mechanisms that can play a role in preventing reverse rotation. Even, a dedicated anti-reverse mechanism may not be required, and it is only necessary to increase the friction force of the surface part where the inner side of the screw cap 1 contacts the outer shell 3 to prevent relative reverse rotation. Of course, for safety reasons, it is still a feasible recommended solution to set an anti-reverse mechanism in the lacing device.

[0081] In summary, for the winding mechanism, there are at least the screw cap 1, the outer shell 3, and the winding cylinder 4 meshing with the screw cap. When the screw cap 1 meshes with the winding cylinder 4, the screw cap 1 drives the winding cylinder 4 to rotate to tighten the lace. When the two are disengaged, the winding cylinder 4 is in a free state and can unwind the lace. As for other structures and parts, they can be designed and adjusted according to needs.

[0082] The present invention also relates to a push-button gear shifting mechanism. The push-button gear shifting mechanism of one embodiment is as Figures 3 to 6 shown. The working principle of the push-button gear shifting mechanism will be described below in conjunction with this embodiment.

[0083] As Figure 3 shown, the push-button gear shifting mechanism includes a cylindrical member 5, a movable member 6, a spring 7, and a guiding cylinder 8.

[0084] Similar to the winding mechanism, the components of the push-button gear shifting mechanism here are also coaxially arranged, and the common central axis is X. Specifically, the cylindrical member 5 can be inserted into the inner cavity of the winding cylinder 4, and the cylindrical member 5 has an inner cavity, which can accommodate the movable member 6, the spring 7, and the guiding cylinder 8, and they are all arranged coaxially. A limiting cylinder 51 integrally formed with or separately formed and fixedly integrated with the inner wall of the cylindrical member 5 is provided on the inner wall of the cylindrical member 5. The guiding cylinder 8 is also located inside the cylindrical member 5 and is spaced apart therefrom. Among them, the guiding cylinder 8 is fixed to the inner wall of the cylindrical member 5 through a snap structure. At one end of the limiting cylinder 51 facing the guiding cylinder 8 is the first end E1, and its end face is serrated, and this serrated end face constitutes a limiting surface for limiting the axial movement displacement range of the movable member 6.

[0085] Specifically, as Figure 4 、 Figure 5a 、 Figure 5bAs shown, the serrated limiting surface includes a plurality of first serrated grooves recessed towards the other end (the second end E2, the end face of the second end E2 is perpendicular to the central axis X) of the limiting cylinder 51 and a plurality of second serrated grooves, which enclose a circle and are arranged in a cycle of first serrated groove, second serrated groove, first serrated groove, second serrated groove, …, first serrated groove, that is, the first serrated groove and the second serrated groove are arranged at intervals staggered in the circumferential direction; in this embodiment, it is arranged in a cycle of first serrated groove, second serrated groove, first serrated groove, second serrated groove twice, and the number of cycles can be different in other embodiments and can be more than twice according to needs. One side tooth surface 52 and the tooth top D1 of the first serrated groove form the first limiting surface S1, where the tooth surface 52 is the sliding part of the first limiting surface S1, and one side tooth surface 53 and the tooth top D2 of the second serrated groove form the second limiting surface S2, where the tooth surface 53 is the sliding part of the second limiting surface S2, and the tooth depth H1 of the first serrated groove recessed is less than the tooth depth H2 of the second serrated groove. Preferably, the bottoms of the plurality of first serrated grooves and the bottoms of the plurality of second serrated grooves are located on the same circumferential plane perpendicular to the axial direction. Therefore, the distances from the bottoms of the plurality of first serrated grooves and the second serrated grooves to the second end S2 of the limiting cylinder 51 along the axial direction X are the same, that is, each serrated groove is recessed from the same end face of the first end S1 towards the second end S2 to form serrated grooves with different depths. The tooth depth is the distance from the plane where the circle is located to the tooth top of the serrated groove. In addition, the width of the first serrated groove in the circumferential direction is preferably the same as or equivalent to the width of the second serrated groove in the circumferential direction. Of course, it is also possible to be different, but only the distance interval of the switching, as well as the resulting time interval and feel, may change slightly.

[0086] Corresponding to the limiting cylinder 51 is the guiding cylinder 8. The end face of the guiding cylinder 8 is provided with a stop surface 81 arranged with a circle of serrated grooves. The tooth tops of each V-shaped serrated groove recessed towards the bottom of the guiding cylinder 8 on the stop surface 81 are staggered by a certain central angle in the circumferential direction from the tooth tops of the first serrated groove or the second serrated groove on the limiting cylinder 51. For example, the angle of stagger is equal to or less than the central angle occupied by half a serrated groove, that is, the tooth top D3 of each serrated groove on the stop surface 81 is axially opposite to the tooth surface S1 of the first serrated groove or axially opposite to the tooth surface S2 of the second serrated groove. The tooth surface of each serrated groove is inclined to guide the moving part 6 to slide along the inclined surface and thus rotate in the circumferential direction.

[0087] The moving part 6 moves between the limiting cylinder 51 and the guiding cylinder 8. Specifically, as Figure 3As shown, the movable member 6 is cylindrical, with a protruding column 61 provided on the side surface of the cylinder. The column body of the movable member 6 is inside the limiting cylinder 51 and the guiding cylinder 8, while the protruding column 61 extends out to move between the end faces of the two, namely the limiting surfaces 52, 53 and the stopping surface 81. The length of the column body of the movable member 6 allows its top end to pass through the through hole at the upper end of the tubular member 5, and preferably can extend outside the tubular member 5 so as to be connected to the wire winding mechanism. One end of the spring 7 abuts against the end face at the end of the movable member 6, and the other end abuts against the bottom of the guiding cylinder 8.

[0088] In this assembly relationship, as Figure 6 shown in the movement trajectory, when the movable member 6 is pressed by an external force, its main body moves towards the bottom of the tubular member 5, and the protruding column 61 on it moves towards the bottom until it touches the stopping surface 81 of the guiding cylinder 8. As long as it has not reached the tooth top D3 of the serrated groove of the stopping surface 81, the protruding column 61 will slide obliquely downwards along the tooth surface of the inclined serrated groove. At this time, the protruding column 61 and the movable member 6 are rotated passively until it reaches the tooth top D3 of the serrated groove, that is, it reaches the movement end point of the downward pressing of the movable member 6 and cannot move forward or downward further. The spring 7 is compressed, and this is the Figure 6 starting point of the trajectory shown by the arrow; at this time, the protruding column 61 is moved axially opposite to the sliding part 52 of the first limiting surface or axially opposite to the sliding part 53 of the second limiting surface, that is, it is located within the axial projection range of the tooth surface of the first or second serrated tooth groove. Assume that here the protruding column 61 is opposite to the sliding part 53 of the second limiting surface.

[0089] After the pressing is released, the spring 7 resets and pushes the movable member 6 to move towards the top of the tubular member 5, and its protruding column 61 moves axially towards the limiting cylinder 51 until it reaches the tooth surface on one side of the aforementioned second serrated groove, that is, the sliding part 53 of the second limiting surface, that is, Figure 6 the part of the trajectory shown by the arrow moving upward from the starting point. Since the tooth top of the guiding cylinder 8 and the tooth top of the limiting cylinder are offset by a certain central angle on the circumference, when the protruding column 61 resets to reach the tooth surface 53 of the second serrated groove, it has not reached the tooth top D2 of the second serrated groove. Therefore, it will continue to slide along the inclined tooth surface, that is, in addition to axial movement, it will also rotate on the circumference along the tooth surface, and under the thrust of the spring 7, it will reach the tooth top D2 of the second serrated groove all the time, that is, the second reset end point and is locked in position, that is, Figure 6 the part of the trajectory in the figure moving obliquely left and upward, and cannot move any further. Here is the second gear of the push-type gear shifting mechanism.

[0090] It can be seen that after one pressing, since the movable member 6 has rotated to a certain extent, when it is pressed again, as described above, the movable member 6 will move downward and slide along the inclined surface until it reaches the tooth top D3 of the serrated groove of the guiding cylinder 8,

[0091] arriving at the movement end point, that is, Figure 6The part where the middle trajectory travels downward and then obliquely downward to the left. At this time, it reaches the tooth crest D3 of the next sawtooth groove on the stop surface. Furthermore, after this pressing is released, as described above, the movable member 6 will also rotate circumferentially while axially resetting, so as to reach the tooth crest D1 of the first sawtooth groove adjacent to the aforementioned second sawtooth groove, that is, the first reset end point and the locked position, that is, the part where the trajectory in the figure travels upward for the second time and obliquely upward to the left for the second time. At this time, the movable member 6 is switched to the first gear of the push-type gear shifting mechanism. When it is pressed downward and obliquely slides to the tooth crest D3 of the sawtooth groove again, the running trajectory of the movable member 6 will repeat the above actions, and so on. The push-type gear shifting mechanism switches back and forth between the first gear and the second gear.

[0092] Since the tooth depth H1 of the first sawtooth groove is less than the tooth depth H2 of the second sawtooth groove, the distance from the top end of the movable member 6 to the top end of the cylindrical member when it is locked at the first reset end point after the first pressing is different from the distance from the movable member 6 to the top end of the cylindrical member when it is locked at the second reset end point after the second pressing. Furthermore, as needed, by pressing once, twice or multiple times, it can be selected or switched whether the movable member 6 is to be reset to the first reset end point or the second reset end point, that is, switched to the first gear or the second gear.

[0093] Such a push-type gear shifting mechanism, in cooperation with the winding mechanism, can achieve special effects.

[0094] As Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 shown, the above-mentioned push-type gear shifting mechanism and the winding mechanism are assembled to form the push-type lacing device of the present invention.

[0095] Specifically, as can be seen from Figure 2 、 Figure 4 , a buckle 11 is provided at the center of the inner surface of the rotary cap 1, and a buckle groove 62 is provided at the front end of the movable member 6. After the rotary cap 1, the anti-reverse gear ring 2, the outer shell 3, and the winding cylinder 4 are axially installed in sequence, the buckle 11 of the rotary cap 1 is located at the center. The cylindrical member 5 is inserted into the inner cavity of the winding cylinder 4, and then the movable member 6 is inserted into the cylinder of the cylindrical member 5 from the bottom, and its top end extends out of the cylindrical member 5. By pressing hard, the buckle groove 62 and the buckle 11 are assembled. The movable member 6 is preferably rotatable freely relative to the rotary cap 1, but cannot be axially displaced relative to each other, that is, they move synchronously along the axis. Then, the spring 7 is inserted into the cylindrical member 5, the guiding cylinder 8 is buckled, and then the base 9 is installed. The overall assembly schematic diagram is as Figure 7 shown, and the positional relationship of each component can be seen from the cross-section Figure 9 、 Figure 10 .

[0096] Among them, the check gear ring 2, the outer shell 3, and the base 9 are fixed by means of buckling or limitation, the cylindrical member 5 and the guide tube 8 are fixed by a snap-fit structure, and at the same time the bottom of the cylindrical member 5 includes a pair of mounting arms 51, and the cylindrical member 5 is buckled to the outer shell 3 or the base 9 by the mounting arms 5 so as to be fixed; therefore, the check gear ring 2, the outer shell 3, the cylindrical member 5, the guide tube 8, and the base 9 constitute the stator part of the lacing device, and the rotary cover 1, the winding drum 4, and the movable part 6 are rotatable around the axial direction, constituting the rotor part of the lacing device.

[0097] Overall, when the starting position is when the raised column 61 of the movable part 6 is located at the first reset end point on the first serrated groove, since the distance from the first reset end point to the top of the tubular part 5 is relatively far, the movable part 6 is lowered at this time, and the rotary cover 1 is also lowered, so that the rotary cover 1 is engaged with the winding drum 4, and the lacing device is in the first gear position at this time; the rotary cover 1 is rotated to tighten the line belt, and the check gear ring 2 cooperates with the inner ratchet 12 and the stop member 33 to prevent the rotary cover 1 from rotating and unwinding.

[0098] Then, the rotary cover 1 is pressed to drive the movable part 6 on the push-type gear switching mechanism to move downward. After the raised column 61 reaches the inclined tooth surface of the stop surface 81, the movable part 6 continues to move downward and rotate until the raised column 61 reaches the moving end point D3 and stops moving; then, the pressing force is released, and the movable part 6 is reset under the action of the spring 7, and the raised column 61 moves upward along the axial direction to the inclined tooth surface of the second serrated groove adjacent to the aforementioned first serrated groove corresponding to the rotation, and continues to move upward under the thrust of the spring 7, while sliding and rotating along the tooth surface until the raised column 61 reaches the tooth top of the second serrated groove, that is, the second reset end point. The locking position, at this time, the lacing device is switched to the second gear; because the distance from the second reset end point to the top of the cylindrical member 5 is closer, at this time the front end of the movable member 6 is away from the cylindrical member 5, pushing the rotary cover 1 to move axially upward away from the housing 3, and the difference between the distance from the first reset end point to the second end E2 of the cylindrical member 5 and the distance from the second reset end point to the second end E2 of the cylindrical member 5 causes the rotary cover 1 to move upward, and the upward distance is greater than the meshing depth of the active teeth of the rotary cover 1 and the driven teeth of the winding drum 4, which is enough to make the active teeth of the rotary cover 1 disengage from the driven teeth of the winding drum 4, and the rotating rotary cover 1 is idle at this time. If the lacing is tight at this time, the tension causes the winding drum 4 to unwind, and the line belt can be loosened; by pulling the line belt, the winding drum can be driven to rotate to further loosen the line belt.

[0099] The above is one specific embodiment of the present invention. Herein, the cylindrical member 5 and the guiding cylinder 8 are respectively cylindrical, and serrated grooves are provided along one circle of the cylinder to form the first / second limiting surfaces, the stop surface, the guiding surface, etc. However, the present invention is not limited to this implementation manner. As long as the first member and the second member respectively perform functions similar to those of the cylindrical member 5 and the guiding cylinder 8, that is, the cylindrical member 5 is one embodiment of the first member, and the guiding cylinder 8 is one embodiment of the second member. Specifically, the first member and the second member limit the movable member to move between them under the action of the elastic member, for example, displace and reset under the action of elastic force, two reset end points with different distances from one end of the first member facing the second member to its other end are provided, and the movable member's moving end point is limited on the second member and the movable member can be guided to switch between the two reset end points. The first member and the second member satisfying such functional characteristics fall within the protection scope of the present invention. For example, the first member and the second member do not necessarily have to be cylindrical, but can be planar structures, and the movable member can be changed from circular motion to swinging between the first reset end point and the second reset end point, or other possible implementation manners all fall within the protection scope of the present invention, which will not be elaborated herein. In this embodiment, the convex column 61 is used as the locking portion of the movable member to lock the relative position of the movable member and the cylindrical member at the first or second reset end point, so as to provide an effective gear position mode. In other embodiments, other structures can also be used as the locking portion as long as the movable member can be locked at the first or second reset end point position of the first member.

[0100] In addition, in this embodiment, the spring 7 provides the reset power for the movable member 6. However, obviously, other elastic members that can provide elastic reset force are feasible and are not limited herein. In addition, in this embodiment, the other end of the spring 7 abuts against the bottom of the guiding cylinder 8. In other embodiments, the guiding cylinder 8 can also be a hollow structure with an open bottom, and the gear shifting mechanism can further include a snap cap for plugging the open bottom of the guiding cylinder 8 to abut against the other end of the spring. The snap cap can be directly fixed to the base or fixed to the cylindrical member 5.

[0101] The beneficial effect of adopting the present invention is that, by switching between the first reset end point and the second reset end point, the lacing device of the present invention provides two operating gear positions. In the first gear position, the rotary cap is engaged with the winding cylinder, so that the wire belt can be operated to be tightened; when a pressing action is performed on the rotary cap, it will switch to the second gear position, the rotary cap is disengaged from the winding cylinder, and the winding cylinder can loosen the wire belt by itself. Since the pressing action and the switching are performed under the elastic acting force, a more light and convenient hand feeling can be provided to the user.

[0102] In addition, the currently commonly used stop pin-retaining ring gear switching mechanism has serious wear due to repeated interlocking between the raised portion of the stop pin and the retaining ring, which affects the service life of the lacing device; the movable part in the present application reciprocates between the moving end point and the reset end point by the elastic force of the elastic part, and there is no problem of wear caused by repeated buckling and disengagement;

[0103] The rotary cover and the movable part are fixedly connected by a buckle structure, so that the axial movement of the rotary cover and the movable part is linked. No matter which operating gear the lacing device is in, the rotary cover cannot be separated from the movable part at will.

[0104] In other embodiments, a winding device may also cooperate with a plurality of push-type gear switching mechanisms. In this case, the rotary cover is preferably arranged coaxially with the central axis of the plurality of push-type gear switching mechanisms.

[0105] The above description is only a preferred embodiment of the present invention, which is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A press-type lacing device, comprising a housing, a rotary cover and a spool. The rotary cover is rotatably arranged on the housing. The spool is supported by the housing and is rotatable relative to the housing. The spool is detachably connected to the rotary cover; characterized in that, The push-type lacing device further includes a push-type gear shifting mechanism for providing a first gear position and a second gear position for the push-type lacing device. When the push-type lacing device is in the first gear position, the rotary cover is engaged with the spool; when the push-type lacing device is in the second gear position, the rotary cover is disengaged from the spool; after applying a pressing force to the push-type gear shifting mechanism and then releasing the pressing force, the push-type lacing device can selectively switch to the first gear position or the second gear position.

2. The push-button lacing device according to claim 1, wherein, The push-type gear shifting mechanism includes a first member and a movable member coaxially arranged, and an elastic member for providing a resetting force for the axial movement of the movable member. The first member includes a first limiting surface and a second limiting surface. The first limiting surface is used to define the first resetting end point of the movable member, and the second limiting surface is used to define the second resetting end point of the movable member; the elastic member acts on the movable member so that it can selectively reset to the first resetting end point or the second resetting end point; after applying a pressing force to the movable member and then releasing the pressing force, the movable member can selectively reset to the first resetting end point or the second resetting end point. When the movable member resets to the first resetting end point, the push-type lacing device is in the first gear position, and at this time the rotary cover is engaged with the spool; when the movable member resets to the second resetting end point, the push-type lacing device is in the second gear position, and at this time the rotary cover is disengaged from the spool.

3. The push-button lacing device according to claim 2, characterized in that, The first member includes a first end and a second end opposite to each other along the axis. The first end of the first member is provided with the first limiting surface and the second limiting surface, and the distances from the first resetting end point and the second resetting end point to the reference surface of the second end of the first member along the axis are different.

4. The push-button lacing device according to claim 2, wherein, The push-type gear shifting mechanism further includes a second member coaxially arranged with the first member and the movable member. The movable member moves between the first member and the second member, and a stop surface is provided on the end surface of the second member to define the moving end point of the movable member.

5. The push-button lacing device according to claim 1, characterized in that The spool has an inner cavity, and at least a part of the push-type gear shifting mechanism is arranged in the inner cavity of the spool.

6. The push-button lacing device according to claim 2, wherein, The rotary cover is connected to the movable member, and the rotary cover and the movable member are locked in the axial direction and can rotate relative to each other in a plane perpendicular to the axial direction; after applying a pressing force to the rotary cover and then releasing the pressing force, the push-type lacing device can selectively switch to the first gear position or the second gear position.

7. The push-button lacing device according to claim 4, wherein, The movable member includes a locking portion. The stop surface of the second member defines the moving end point of the locking portion. The first limiting surface includes a sliding portion for guiding the sliding of the locking portion and a locking portion for defining the first resetting end point of the locking portion. The second limiting surface includes a sliding portion for guiding the sliding of the locking portion and a locking portion for defining the second resetting end point of the locking portion. The moving end point of the locking portion is axially opposite to the sliding portion of the first limiting surface or axially opposite to the sliding portion of the second limiting surface.

8. The push-button lacing device according to claim 2, wherein, The first component is cylindrical, the first reset end point and the second reset end point are offset along the circumferential direction of the cylindrical first component, and the movable member can rotate around the axial direction, so as to be selectively reset to the first reset end point or the second reset end point.

9. The push-button lacing device according to claim 2, wherein, The first component is arranged in the inner cavity of a cylindrical member. A plurality of first serrated grooves and a plurality of second serrated grooves are arranged on the first end face of the first component, and the first serrated grooves and the second serrated grooves are arranged at intervals in sequence along the circumference and are arranged in a cycle. The tooth top of the first serrated groove defines the first reset end point, the tooth top of the second serrated groove defines the second reset end point, and the depth of the first serrated groove is less than the depth of the second serrated groove.

10. The push-button lacing device according to claim 4, characterized in that, The movable member is cylindrical, and the locking portion is arranged on the cylindrical side surface of the movable member. The locking portion moves between the first end face of the first component and the end face of the second component provided with the stop surface and is reset under the action of the elastic member.

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