Loosening and winding belt sound production assembly and lacing device comprising same

Abstract

The invention discloses a coil loosening sound production assembly and a lacing device comprising the coil loosening sound production assembly, the coil loosening sound production assembly comprises a shell, a winding reel and a sound production pawl, the winding reel and the shell can be connected in a relative rotation mode, and the sound production pawl and the shell or the winding reel are fixedly connected in the circumferential direction; a sounding pawl is arranged on the winding reel, pawl teeth are arranged on the sounding pawl, a sounding groove is correspondingly formed in the winding reel or the shell, the pawl teeth and the sounding groove are matched to form a sounding structure, and the sounding structure is configured to respond to rotation of the winding reel in the tape winding direction to generate audible sound. And generating audible sound in response to the rotation of the winding reel in the belt loosening direction. Therefore, the relative movement of the sounding pawl and the sounding groove is consistent with the relative movement of the winding reel and the shell, and the structure is simple and stable; and the uncoiled belt sound production assembly can give out sound which can be perceived by a user in response to the winding and the loosening of the tying belt.

Description

Technical Field

[0001] This invention relates to the field of lacing devices, and more particularly to a loosened belt sound-generating component and a lacing device comprising the same. Background Technology

[0002] Currently, laces, ropes, or other tensioning mechanisms are commonly used to tighten footwear, clothing, or other items. Laces are typically located on footwear, clothing, or other items, allowing the laces to be tightened around the opening. While existing lace-up devices can fulfill the functional requirement of winding laces to tighten footwear, clothing, or other items, their function is relatively limited. Users typically experience no audible interaction when tightening or loosening the laces. Therefore, users must visually inspect the tightness of the laces, resulting in a poor user experience.

[0003] Therefore, those skilled in the art have conceived of adding a sound-generating structure to the existing belt-tying device to enhance the user experience through sound interaction. For example, existing technology discloses a separate belt-loosening sound-generating component, which is driven to rotate by a drive structure on the unwinding spool, and produces sound by the engagement of an elastic contact arm on the belt-loosening sound-generating component with a concave-convex structure on the bearing seat. The technical solution provided by this existing technology has the following disadvantages: First, the unidirectional rotation of the belt-loosening sound-generating component driven by the drive structure is relatively complex, and poor unidirectional transmission contact of the drive structure can easily lead to slippage; second, the separate belt-loosening sound-generating component increases the height of the belt-tying device, which is not conducive to miniaturization.

[0004] Therefore, it is necessary to provide a loose-wound tape sound-generating component with a simple structure and good stability to improve the user's voice interaction experience. Summary of the Invention

[0005] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, one object of the present invention is to provide a loose-wrap tape sound-generating assembly and a tying device comprising the same.

[0006] To achieve the above objectives, the present invention provides a loosely wound tape sound-generating assembly, comprising:

[0007] The device comprises a housing, a spool, and a ratchet pawl, wherein the spool and the housing are rotatably connected relative to each other, and the ratchet pawl is circumferentially fixedly connected to the housing.

[0008] The sound-generating pawl is provided with pawl teeth, and the spool is provided with a corresponding sound-generating groove. The pawl teeth and the sound-generating groove cooperate to form a sound-generating structure. The sound-generating structure is configured to generate an audible sound in response to the rotation of the spool along the winding direction and in response to the rotation of the spool along the unwinding direction.

[0009] The term "circumferential" as used in this application refers to the circumferential direction of the rotation of the winding drum; the term "circumferential fixed connection" means that the two connecting parts cannot rotate relative to each other, but are allowed to move relative to each other in other directions, such as relative movement along the axial direction.

[0010] Furthermore, the ratchet teeth and the sound-generating groove are configured to mesh with each other, with the meshing direction being either axial or radial meshing.

[0011] In this application, "axial engagement" refers to the axial direction parallel to the housing and the spool, wherein the housing and the spool are coaxially arranged or axially parallel; "radial engagement" refers to the radial direction of the circumference formed by the rotation of the spool, which is also the radial direction of the unwinding tape sound-generating assembly.

[0012] Furthermore, the sound-emitting pawl is provided with a single pawl tooth or a group of pawl teeth; the winding drum is correspondingly provided with a single sound-emitting groove or a group of sound-emitting grooves.

[0013] "The winding drum is provided with a single sound-emitting groove or a group of sound-emitting grooves" means that in order to cooperate with the single pawl tooth or group of pawl teeth on the sound-emitting pawl, the winding drum is provided with a single sound-emitting groove or a group of sound-emitting grooves. However, the number of single sound-emitting grooves or groups of sound-emitting grooves is not limited. There can be only one or multiple single sound-emitting grooves or groups of sound-emitting grooves. The number can correspond to the number of sound-emitting pawls or be a multiple of the number of sound-emitting pawls. As long as the single sound-emitting groove or group of sound-emitting grooves can cooperate with the pawl tooth or group of pawl teeth on the single sound-emitting pawl, it is acceptable.

[0014] Furthermore, the ratchet tooth assembly includes multiple adjacent ratchet teeth, and the sound-generating groove assembly includes multiple adjacent sound-generating grooves. Here, "multiple" means two or more.

[0015] Preferably, the loosened tape sound-generating assembly includes one or more sound-generating pawls.

[0016] More preferably, the one or more sound-emitting pawls are evenly spaced circumferentially.

[0017] Furthermore, the sound-generating grooves on the spool are arranged in a repetitive, spaced manner, with a single groove or a group of grooves serving as groove structural units. The number of groove structural units is a multiple of the number of sound-generating pawls. This arrangement ensures that each sound-generating pawl has a corresponding groove structural unit to cooperate in producing sound, and that after the spool rotates a certain angle, each sound-generating pawl can again cooperate with its corresponding groove structural unit to produce sound. The overall structure is stable, and the emitted sound is crisp and audible.

[0018] Furthermore, the sound-generating ratchet is integrally formed on the housing, or it can be formed separately and then connected to the housing.

[0019] Furthermore, the sound-generating pawl is individually molded and then circumferentially fixed to the housing by a key connection.

[0020] Preferably, the sound-emitting pawl and the housing are circumferentially fixedly connected by the engagement of a positioning groove and a positioning protrusion.

[0021] Furthermore, when the spool is subjected to a rotational force, the sound-emitting pawl and the sound-emitting groove are configured to not prevent the spool from rotating relative to the housing. Here, "the spool is subjected to a rotational force" includes applying a rotational force to the spool via a strap, applying a rotational force to the spool via a force-applying member of the strap device, etc.; "the sound-emitting pawl and the sound-emitting groove are configured to not prevent the spool from rotating relative to the housing" includes both rotation of the spool relative to the housing in the winding direction and rotation of the slack direction relative to the housing.

[0022] Furthermore, the tips of the ratchet teeth are configured in a symmetrical or substantially symmetrical structure, and the sound-emitting groove is adapted to the structure of the ratchet teeth to allow the spool to rotate relative to the housing in the winding direction or the unwinding direction.

[0023] The term "symmetric structure or basically symmetric structure" refers to a shape that is symmetrical or basically symmetrical.

[0024] Preferably, the ratchet teeth and the sound-producing groove engage in a form-fitting manner.

[0025] Furthermore, the sound-generating pawl is a single cantilever pawl, one end of which is connected to the housing, and the movable end of the single cantilever pawl is provided with pawl teeth.

[0026] Preferably, the pawl teeth of the single cantilever pawl mesh with the sound-generating groove in an axial direction.

[0027] Furthermore, the housing also includes an annular platform located at one end of the housing. The single cantilever pawl and the annular platform are integrally formed, and the pawl teeth protrude into the housing along the axial direction of the housing.

[0028] Preferably, the pawl teeth of the single cantilever pawl mesh with the sound-generating groove in an axial direction.

[0029] Furthermore, the single cantilever pawl is disposed near the inner ring of the annular platform and extends circumferentially along the annular platform, and one end of the single cantilever pawl is connected to the annular platform.

[0030] Furthermore, in other embodiments of this application, a hollow area is provided on the middle ring area of ​​the annular platform, and the single cantilever pawl is disposed in the hollow area and one end is connected to the annular platform.

[0031] Furthermore, the sound-generating pawl is a double-armed elastic pawl, and the pawl teeth are located in the middle of the double-armed elastic pawl.

[0032] Preferably, the engagement direction between the pawl teeth of the double-arm elastic pawl and the sound-generating groove is radial or axial.

[0033] Furthermore, the unwinding tape sound-generating assembly includes one or more double-arm elastic pawls, and the one or more double-arm elastic pawls are interconnected to form an elastic pawl ring, which is installed inside the housing.

[0034] Preferably, the elastic pawl ring is circumferentially fixed within the housing by a key connection.

[0035] Furthermore, the elastic pawl ring and the housing are circumferentially fixedly connected through the engagement of a positioning groove and a positioning protrusion.

[0036] Preferably, the pawl teeth of the elastic pawl ring mesh radially with the sound-generating groove.

[0037] Furthermore, each of the said double-arm elastic pawls is evenly distributed on the elastic pawl ring, and each of the said sound-generating grooves or sound-generating groove groups is evenly distributed on the winding drum.

[0038] Preferably, a positioning groove is provided at the connection point of two adjacent double-arm elastic pawls in the elastic pawl ring, and a positioning protrusion is provided on the inner side of the housing at the corresponding position of the positioning groove. The positioning groove and the positioning protrusion cooperate to install and position the elastic pawl ring.

[0039] In the above-mentioned loose-wound tape sound-generating assembly, the positions of the sound-generating pawl and the sound-generating groove can be interchanged. Therefore, the present invention also provides a loose-wound tape sound-generating assembly, including: a housing, a winding drum and a sound-generating pawl, wherein the winding drum and the housing are rotatably connected relative to each other, and the sound-generating pawl and the winding drum are circumferentially fixedly connected.

[0040] The sound-generating pawl is provided with pawl teeth, and the housing is correspondingly provided with a sound-generating groove. The pawl teeth and the sound-generating groove cooperate to form a sound-generating structure. The sound-generating structure is configured to generate an audible sound in response to the rotation of the spool along the winding direction and in response to the rotation of the spool along the unwinding direction.

[0041] In the loose-wound tape sound-generating assembly provided in this application, the sound-generating pawl is circumferentially fixedly connected to the housing or the winding drum, meaning that there is no relative rotation between the sound-generating pawl and the housing or between the sound-generating pawl and the winding drum. This eliminates the need for a unidirectional transmission drive mechanism in the prior art, resulting in a simpler and more stable structure.

[0042] The present invention also provides a strapping device including the above-mentioned loose-wrap sound-generating component, the strapping device further including: a backstop member, the backstop member being fixedly disposed on the housing;

[0043] The housing further includes an annular platform, and the anti-reverse component is disposed on the first end face of the annular platform; the sound-emitting ratchet is integrally formed with the annular platform, or...

[0044] The sound-emitting ratchet is circumferentially fixed to the second end face of the annular platform.

[0045] Furthermore, the anti-reverse component is one or a combination of a anti-reverse pawl, a rocker arm elastic component, and an offset component. The anti-reverse component, together with other components, forms an anti-reverse mechanism, such as an anti-reverse pawl and a ratchet forming an anti-reverse mechanism.

[0046] Furthermore, when the sound-emitting pawl and the sound-emitting groove are axially engaged, a hollow area is provided on the annular platform, and the sound-emitting pawl is disposed within the hollow area, with the anti-reverse component located above or to the side of the sound-emitting pawl. By placing the axially engaged single cantilever pawl within the hollow area of ​​the annular platform, the space required for a separate sound-emitting pawl component is eliminated. Compared to radially engaged sound-emitting pawls, this reduces the axial height of the tethering device, making it more conducive to miniaturization.

[0047] Furthermore, the sound-emitting ratchet is integrally formed within the hollow area or fixedly disposed within the hollow area.

[0048] Preferably, the sound-emitting pawl is configured to elastically displace along the axial direction of the housing within the hollowed-out area to a critical position, and the critical position is flush with or lower than the first end face of the annular platform.

[0049] Since the highest position (critical position) reached axially by the axially engaged sound-generating pawl during elastic displacement is lower than or flush with the first end face of the annular platform, and the anti-reverse component is disposed on the first end face, the elastic displacement of the anti-reverse component will not hinder the elastic deformation of the anti-reverse component. This ingenious structural design avoids the problem of mutual interference between the sound-generating pawl and the anti-reverse component, so that the sound-generating function and the anti-reverse function are integrated into one, simplifying the structural composition of the tethering device, and also facilitating the stable realization of each function.

[0050] Preferably, the bottom surface of the axially engaged sound-generating pawl is flush with the second end face of the annular platform, and the thickness of the axially engaged sound-generating pawl is less than the height of the hollowed-out area. That is, the thickness of the axially engaged sound-generating pawl is less than the thickness of the annular platform.

[0051] Preferably, when the pawl teeth of the sound-emitting pawl engage radially with the sound-emitting groove, the sound-emitting pawl is circumferentially fixedly connected to the second end face of the annular platform.

[0052] Preferably, the elastic pawl ring is circumferentially fixed to the second end face of the annular platform of the housing through the cooperation of the positioning groove and the positioning protrusion.

[0053] The anti-reverse mechanism, which includes the anti-reverse component, is used to control the cable reel in the winding mode so that the reel can only rotate in one direction relative to the housing.

[0054] Furthermore, the tying device also includes a cap, which has a ratchet inside, and the cap is operably connected to the spool.

[0055] The anti-reverse component is a anti-reverse pawl. When the cap is connected to the spool, the anti-reverse pawl engages with the ratchet, so that the cap and the spool can only rotate relative to the housing in the winding direction.

[0056] When the cap is disengaged from the spool, the anti-reverse pawl disengages from the ratchet, and the spool can rotate freely relative to the housing.

[0057] The present invention has the following beneficial effects:

[0058] 1. The sound-emitting pawl is circumferentially fixed to the housing or the spool, and the sound-emitting groove is correspondingly set on the spool or the housing, so that the relative movement of the sound-emitting pawl and the sound-emitting groove is consistent with the relative movement of the spool and the housing. This structure is relatively simple and will not have the slippage problem that may occur when the sound-emitting pawl is driven in one direction. The structure is more stable and reliable.

[0059] 2. The unwinding belt sound-generating component can emit a sound that is perceptible to the user in response to the winding and unwinding of the belt;

[0060] 3. The sound-generating grooves are repeatedly spaced in groove structure units, so that the sound-generating grooves will engage with the pawl teeth on the sound-generating pawl again to generate sound after the winding drum has turned a certain angle, thereby avoiding sound generation caused by slight adjustments to the tightness of the strap. Compared with setting a single ring of sound-generating grooves, the winding drum sound-generating component provided by this invention has a wider range of applications and will not affect the user's normal walking. Attached Figure Description

[0061] Figure 1 An exploded structural diagram of one angle of the first embodiment of the loose-wound tape sound-generating component provided by the present invention;

[0062] Figure 2 Exploded structural diagrams from different angles of the first embodiment of the loose-wound tape sound-generating component provided by the present invention;

[0063] Figure 3 An exploded structural diagram of one angle of the second embodiment of the loose-wound tape sound-generating component provided by the present invention;

[0064] Figure 4 Exploded structural diagrams from different angles of the second embodiment of the loose-wrap tape sound-generating component provided by the present invention;

[0065] Figure 5 for Figure 3 A top view of the housing in an embodiment of the loose-wound tape sound-generating assembly shown;

[0066] Figure 6a for Figure 5 Schematic diagram of the cross-sectional structure at point AA;

[0067] Figure 6b for Figure 6a A magnified view of a section at point A in the middle;

[0068] Figure 7 An exploded structural diagram of one angle of the third embodiment of the loose-wound tape sound-generating component provided by the present invention;

[0069] Figure 8 Exploded structural diagrams from different angles of the third embodiment of the loose-wound tape sound-generating component provided by the present invention;

[0070] Figure 9 This is a schematic diagram of the structure of the housing and the anti-reverse pawl in the lacing device provided by the present invention;

[0071] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure at point BB;

[0072] Figure 11 A schematic diagram of some components of the fastening device including a loosened belt sound-generating component provided by the present invention;

[0073] Figure 12 for Figure 11 A schematic diagram of the cross-sectional structure at point CC.

[0074] Figure label:

[0075] The housing 10, the annular platform 101, the positioning protrusion 1011, the buckle 1012, the single cantilever pawl 102a, the hollow area 102, the elastic pawl ring 102b, the double-arm elastic pawl 1021, the pawl teeth 1021a and 1021b, the elastic arm 1021c, and the positioning groove 1022.

[0076] 20, 201a and 201b, 202, 203, and 2031;

[0077] Stop the backlash with 30 thorns.

[0078] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0079] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0080] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0081] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "length", "width", "horizontal", "vertical", "top", "bottom", "inner", and "outer" used in the description of this invention are based on the orientation or positional relationship shown in the accompanying drawings and are intended to facilitate the description of this invention and simplify the description. They should not be construed as a limitation that the device or component referred to must have a specific orientation or positional relationship.

[0082] Furthermore, the terms "first" and "second" are used solely for distinguishing purposes and do not imply relative importance, nor do they indicate or suggest the number of technical features. Therefore, a feature defined by "first" or "second" may explicitly or implicitly indicate that there is one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise expressly defined.

[0083] Unless otherwise explicitly specified, the terms "connection" and "fixation" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0084] See Figure 1 and Figure 2 This invention provides a loose-wound tape sound-generating assembly, comprising: a housing 10, a spool 20, and a sound-generating pawl; the spool 20 and the housing 10 are rotatably connected relative to each other, and the sound-generating pawl is circumferentially fixedly connected to the housing 10. The sound-generating pawl is provided with pawl teeth 1021a, and the spool 20 is provided with a sound-generating groove 201a corresponding to the pawl teeth 1021a. The pawl teeth 1021a and the sound-generating groove 201a form a sound-generating structure. The pawl teeth 1021a are in elastic contact with the surface of the spool 20. The sound-generating pawl is used to generate sound through the pawl teeth 1021a and the sound-generating groove 201a when the spool 20 rotates relative to the housing 10. The 01a meshes to produce a sound; specifically, when the spool rotates along the winding direction, the pawl teeth and the sound-producing groove engage and disengage to produce an audible sound; similarly, when the spool rotates along the unwinding direction, the pawl teeth and the sound-producing groove also engage and disengage to produce an audible sound, that is, the sound-producing mechanism is configured to produce an audible sound in response to the rotation of the spool along the winding direction or along the unwinding direction.

[0085] like Figure 1 and Figure 2As shown, in one embodiment of the present invention, the sound-generating pawl is a single cantilever pawl 102a; one end of the single cantilever pawl 102a is fixedly connected to the main body of the housing 10, so the single cantilever pawl 102a and the housing 10 cannot rotate in the circumferential direction and remain relatively stationary; the other end of the single cantilever pawl 102a is a movable end, and the pawl teeth 1021a are located at the end of the movable end of the single cantilever pawl 102a. An installation cavity is provided inside the housing 10, and the cable reel 20 is rotatably installed in the installation cavity. After the housing 10 and the cable reel 20 are assembled relative to each other, the upper surface of the cable reel 20 contacts the single cantilever pawl 102a. Because the single cantilever pawl 102a has a certain elasticity, the pawl teeth 1021a can elastically contact the surface of the cable reel 20. During the relative rotation between the spool 20 and the housing 10, the spool 20 also rotates relative to the single cantilever pawl 102a. When the sound-generating groove 201a rotates to engage with the pawl teeth 1021a, the pawl teeth 1021a will strike the sound-generating groove 201a under the action of elastic force to produce sound. In one embodiment of the present invention, the structural shape of the sound-generating groove 201a is adapted to the structure and shape of the outer surface of the pawl teeth 1021a to increase the elastic contact area between the pawl teeth 1021a and the sound-generating groove 201a, thereby producing a stable sound. Since the sound-generating pawl is directly set at the upper end of the inner cavity of the housing 10, and the sound-generating groove 201a is set on the spool 20, this structure is relatively simple and will not have the slippage problem existing in the unidirectional drive structure, making the structure stable and reliable.

[0086] like Figure 1 and Figure 2 As shown, the housing 10 also includes an annular platform 101, and the single cantilever pawl 102a and the annular platform 101 are integrally formed. The annular platform 101 is located at the top of the housing 10. The housing 10 can be integrally formed using injection molding, potting, or other methods to form the annular platform 101 and the single cantilever pawl 102a. This ensures a more secure connection between the single cantilever pawl 102a and the annular platform 101, and the single cantilever pawl 102a is less prone to damage during its elastic up-and-down movement. In other preferred embodiments, the single cantilever pawl 102a and the housing can be formed separately and then positioned and installed.

[0087] like Figure 1 and Figure 2As shown, multiple single cantilever pawls 102a and sound-generating grooves 201a are provided. Each single cantilever pawl 102a is evenly distributed within the housing 10, and each sound-generating groove 201a is evenly distributed on the winding drum 20. When the winding drum 20 rotates relative to the housing 10, the winding drum 20 also rotates relative to each single cantilever pawl 102a. When the pawl teeth 1021a on each single cantilever pawl 102a engage with the sound-generating grooves 201a, each pawl tooth 1021a can simultaneously strike the sound-generating grooves 201a under the action of elastic force to produce a loud sound. In this embodiment, each single cantilever pawl 102a is provided with one pawl tooth 1021a; in other embodiments, each single cantilever pawl 102a may be provided with a pawl tooth group consisting of multiple pawl teeth, and the corresponding winding drum is provided with a sound-generating groove group. Further preferably, as... Figure 1 As shown, there are three single cantilever pawls 102a, evenly spaced circumferentially, and six sound-generating grooves 201a, evenly spaced circumferentially. In other preferred embodiments, the number of sound-generating grooves 201a can be other multiples of the number of single cantilever pawls, such as 1, 2, 3, ... This arrangement allows multiple sounds to be generated during the relative rotation of the spool 20 and the housing 10, producing a regular clicking sound. The sound-generating grooves 201a can only surround the annular platform 101 of the housing once. However, preferably, the sound-generating grooves are spaced apart, and the central angle between adjacent sound-generating grooves can be any angle between 30° and 120°. Figure 1 and 2 As shown, the central angle between adjacent sound-emitting grooves is 60°. The spacing of the sound-emitting grooves ensures that the spool will only make a sound after rotating a certain angle, preventing the rattling sound caused by minor adjustments to the strap tension during normal walking. However, if the sound-emitting grooves were arranged around the entire ring platform, the sound would still be produced during normal walking, making it unsuitable for quiet environments, resulting in a poor user experience and a narrower range of applications.

[0088] See Figures 1 to 4 In another embodiment of the present invention, the specific positions of the single cantilever pawl 102a and the sound-generating groove 201a can be adjusted according to design requirements. For example... Figure 1 and Figure 2 As shown, the sound-generating groove 201a is located on the upper surface of the winding drum 20, near the inner ring; correspondingly, the single cantilever pawl 102a is also located on the inner circumference of the annular platform at the top of the housing 10. Figure 3 and Figure 4As shown, the sound-generating groove 201a is located on the upper surface of the winding drum 20, near the outer ring; correspondingly, the single cantilever pawl 102a is located at the middle ring position of the annular platform at the top of the housing 10; specifically, as... Figure 3 As shown, the annular platform 101 has a hollow area 102, and the single cantilever pawl 102a is disposed in the hollow area 102. Figure 1 and Figure 3 The difference in the illustrated embodiment is that when the single cantilever pawl 102a is close to the inner ring, the radial inward displacement of the single cantilever pawl 102a towards the housing 20 is unrestricted; while when the single cantilever pawl 102a is positioned at the middle ring of the annular platform, both the radial inward and outward displacement of the single cantilever pawl 102a towards the housing 20 are restricted, so that the single cantilever pawl 102a will not undergo excessive elastic displacement due to external forces, which is more conducive to the stability of the sound-generating structure.

[0089] in addition, Figures 1 to 4 In the two embodiments shown, the pawl tooth 1021a and the sound-generating groove are configured not to obstruct the rotation of the spool within the housing, so that sound can be generated when the spool 20 rotates relative to the housing 10 in both directions. Preferably, the pawl tooth 1021 has a right angle or an obtuse angle at its tip, and the tooth wall near the free end of the pawl is a first tooth wall T1, and the other tooth wall is T2, wherein the first tooth wall T1 is longer than the second tooth wall T2, and the angle between the first tooth wall T1 and the altitude line passing through the tooth tip is greater than the angle between the second tooth wall T2 and the altitude line. Preferably, the angle between the angle bisector passing through the tooth tip and the altitude line is in the range of 0°≤α≤5°. Specifically, as shown... Figure 5 and Figure 6a , 6bAs shown, in the second embodiment, the angle α between the angle bisector P passing through the tooth tip and the altitude line H in the pawl tooth tip is 3.5°. When the spool rotates clockwise, the force applied to the single cantilever pawl by the sound-emitting groove causes the pawl cantilever to tighten; when the spool rotates counterclockwise, the force applied to the single cantilever pawl by the sound-emitting groove causes it to compress. Since the pawl teeth of the single cantilever pawl are only constrained on one side, the compressive force applied to the cantilever may cause the pawl teeth and the groove to jam during disengagement or re-engagement. Therefore, by designing the pawl teeth, when the T1 tooth wall is used as the force transmission surface, the slope of the T1 tooth wall is designed to be gentler and have a longer stroke, which is beneficial to guide the pawl teeth to disengage from the sound-emitting groove. This ensures that the spool 20 will not generate a large obstruction force when rotating clockwise or counterclockwise relative to the housing 10, thus preventing the spool 20 from rotating poorly or even failing to rotate. When the spool 20 rotates clockwise or counterclockwise relative to the housing 10, the ratchet teeth 1021a strike the sound-generating groove 201a under the action of elastic force to produce sound. Thus, since the spool 20 can produce sound when rotating in both directions relative to the housing 10, the sound-generating mechanism allows the user of the cable tie to perceive the sound of winding and unwinding the cable regardless of whether the spool rotates clockwise or counterclockwise, greatly improving the user experience.

[0090] Furthermore, Figures 1 to 4 In the illustrated embodiments, see Figure 5 and Figure 6a , 6b The pawl teeth 1021a protrude axially (OO) toward the interior of the housing and engage axially with the sound-generating groove 201a. In this application, the housing 10 and the winding drum 20 are collinear. In other preferred embodiments, a double-armed elastic pawl can also be provided in the hollow area 102 of the annular platform 101 of the housing, and the pawl teeth of the double-armed elastic pawl can also be configured to protrude axially (OO) toward the interior of the housing. The double-armed elastic pawl can be molded separately and installed on the annular platform 101, or it can be integrally molded with the annular platform.

[0091] See Figure 7 and Figure 8 In another embodiment of the invention, the sound-emitting pawl is configured as an elastic pawl ring 102b, which is installed within the housing 10; the elastic pawl ring 102b includes a double-arm elastic pawl 1021, and the pawl teeth 1021b are located at the middle of the inner side of the double-arm elastic pawl 1021. Figure 7 and Figure 8 As shown, this embodiment is similar to Figures 1 to 4 The two embodiments are different. Figures 1 to 4Both embodiments of the sound-generating ratchet employ a one-piece molded structure, with the single cantilever ratchet 102a forming integrally with the annular platform 101. In this embodiment, a separate component, an elastic ratchet ring 102b, is used to realize the structure of the sound-generating ratchet. The elastic ratchet ring 102b may have one or more double-arm elastic ratchet 1021s. The double-arm elastic ratchet 1021s are connected by a connecting portion to form a ring-shaped elastic ratchet ring 102b. This elastic ratchet ring 102b can be formed using a one-piece molding process. The outer diameter of the elastic ratchet ring 102b is adapted to the inner diameter of the housing 10, allowing the elastic ratchet ring 102b to be tightly installed within the housing 10 against its inner wall. Thus, when the spool 20 rotates relative to the housing 10, since the elastic pawl ring 102b is circumferentially fixed to the housing, it cannot rotate either. The spool can then rotate relative to the elastic pawl ring 102b, and the pawl teeth 1021b on the inner side of the double-arm elastic pawl 1021 can engage with the sound-generating groove 201a on the outer side of the spool 20 to produce sound. When the spool rotates, the elastic arms 1021c of the double-arm elastic pawl 1021 deform radially inward and outward, causing the pawl teeth 1021b to continuously engage and disengage with the sound-generating groove 201a, thereby producing sound. Preferably, as... Figure 7 As shown, the elastic arm 1021c is constructed in the shape of a serpentine spring. Since the elastic arms 1021c on both sides of the pawl tooth 1021b are symmetrical, and the pawl tooth is preferably symmetrical, the pawl tooth 1021b is subject to the dual constraints of the elastic arms on both sides, regardless of whether the drum rotates clockwise or counterclockwise. This prevents jamming during the engagement and disengagement process of the pawl tooth and the sound-generating groove. Furthermore, the elastic arm on one side of the pawl tooth 1021b is subjected to tension, while the other side is subjected to compression, resulting in essentially consistent forces. This ensures that the sound emitted by the sound-generating structure is essentially consistent when the drum rotates in both directions, and the smoothness of rotation is also essentially consistent. In other embodiments, the elastic arms of the double-arm elastic pawl can also have other structures or shapes, as long as radial offset can be achieved. Further, in this embodiment, the pawl tooth 1021b and the sound-generating groove 201a on the outer side of the drum 20 are radially engaged, that is, the pawl tooth 1021b protrudes inward along the radial direction RR of the elastic pawl ring 102b, such as... Figure 7 As shown, the radial direction of the elastic pawl ring 102b is collinear with the radial direction of the housing 10.

[0092] like Figure 7 and Figure 8As shown, multiple elastic pawls 1021 and sound-generating grooves 201b are provided. Each double-arm elastic pawl 1021 is evenly distributed on the elastic pawl ring 102b, and each sound-generating groove 201b is evenly distributed on the winding drum 20. When the winding drum 20 rotates relative to the housing 10, the winding drum 20 and the elastic pawl ring 102b rotate relative to each other. When the winding drum rotates to the point where the pawl teeth 1021b on each elastic pawl 1021 engage with the corresponding sound-generating groove 201b, each pawl tooth 1021b can simultaneously strike the sound-generating groove 201b under the action of elastic force, thus producing a louder sound. The number of sound-generating grooves 201b is a multiple of the number of double-arm elastic pawls 1021, as detailed in [reference needed]. Figures 1 to 4 The illustrated embodiment shows the quantity of both. This allows for multiple sounds to be generated during one rotation between the spool 20 and the housing 10, resulting in a regular clicking sound. In other preferred embodiments, both single-cantilever pawls and double-cantilever elastic pawls can have one or more pawl teeth. Each single-cantilever pawl or double-cantilever elastic pawl has pawl teeth forming a pawl tooth group. Correspondingly, the grooves on the spool are configured as sound-generating grooves or a group of sound-generating grooves. The pawl teeth engage with the sound-generating grooves, and the pawl tooth group engages with the sound-generating groove group. Figures 1 to 8 In the illustrated embodiments, both the single-cantilever pawl and the double-arm elastic pawl have only one pawl tooth, and the spool also features a single, repeatedly spaced sound-emitting groove. In other preferred embodiments, the single-cantilever pawl or the double-arm elastic pawl has a group of pawl teeth (e.g., two pawl teeth forming one group), and correspondingly, the spool has a group of sound-emitting grooves (two sound-emitting grooves forming a group). The groups of sound-emitting grooves constitute groove structure units, which are repeatedly spaced on the spool. The number of sound-emitting groove groups can be set as a multiple of the number of pawl tooth groups, with the multiple range referring to the setting of the multiple of the number of sound-emitting grooves to pawl teeth above.

[0093] like Figure 7 and Figure 8As shown, the ratchet teeth 1021b and the sound-emitting groove 201b are configured in a symmetrical structure to allow the spool 20 to rotate relative to the housing 10 in both directions. The symmetrical structure of the ratchet teeth 1021b and the sound-emitting groove 201b ensures that the spool 20 will not experience excessive resistance during clockwise or counterclockwise rotation relative to the housing 10, preventing the spool 20 from failing to rotate. When the spool 20 rotates clockwise or counterclockwise relative to the housing 10, the ratchet teeth 1021b will strike the sound-emitting groove 201b under elastic force, producing a sound. Thus, since the spool 20 produces sound during both clockwise and counterclockwise rotation relative to the housing 10, the cable tie device will produce sound when winding and unwinding the cable, allowing the user to perceive the sound.

[0094] See Figure 8 The elastic pawl ring 102b has a positioning groove 1022 at the connection point of two adjacent double-arm elastic pawls 1021. One or more positioning protrusions 1011 are provided on the inner side of the housing 10 opposite to the positioning groove 1022. The positioning groove 1022 and the positioning protrusion 1011 cooperate to position the elastic pawl ring 102b, achieving a circumferential fixed connection between the elastic pawl ring 102b and the housing 10. The positioning groove 1022 and the positioning protrusion 1011 allow for positioning of the elastic pawl ring 102b during installation, ensuring that the elastic pawl ring 102b is installed at a predetermined position on the inner wall of the housing 10, thus avoiding installation deviations.

[0095] See Figure 9 and Figure 10 The present invention also provides an embodiment of a strapping device including the aforementioned loose-wound tape sound-generating component, the strapping device further including a backstop member. Preferably, the backstop member is a backstop pawl 30, which is installed on the outer side of the annular platform at the top of the housing 10. The backstop pawl 30 cooperates with a ratchet to control the unidirectional rotation of the ratchet. When the ratchet is linked with the winding drum, it further controls the unidirectional rotation of the winding drum. The working principle of the backstop pawl can be found in patent CN208993976U. The backstop pawl 30 will radially inward offset in the working state. When the ratchet is disengaged from the winding drum, the sound-generating pawl-sound-generating groove will not hinder the rotation of the winding drum relative to the housing, and the winding drum can rotate in both directions. Figure 9 and Figure 10As shown, the anti-reverse pawl 30 is installed on the outer side of the top of the housing 10, adjacent to and located outside or above the single cantilever pawl 102a. When the winding drum 20 rotates relative to the housing 10, the single cantilever pawl 102a will move elastically up and down under the action of the sound-generating groove 201a. When the single cantilever pawl 102a moves axially towards the anti-reverse pawl 30, it may collide with the anti-reverse pawl 30, thus affecting each other. To reduce or avoid this mutual influence, a certain space needs to be reserved between the upper surface of the single cantilever pawl 102a and the lower surface of the anti-reverse pawl 30. Figure 10 As shown, the reserved space can be formed when the housing 10 is integrally molded. That is, the upper surface of the single cantilever pawl 102a is a certain axial distance difference δH from the upper surface of the annular platform of the housing 10. This ensures that the axial up-and-down movement of the single cantilever pawl 102a will not collide with the anti-reverse pawl 30 on the upper surface of the housing 10, thus preventing mutual interference. Even if the anti-reverse pawl shifts radially inward while the emitting pawl jumps axially upward, the two can avoid collision and thus do not interfere with each other. Specifically, the bottom surface of the single cantilever pawl can be flush with the bottom surface of the annular platform, and the thickness of the single cantilever pawl can be set to be relatively thin, less than the thickness of the annular platform. This ensures the axial elasticity of the single cantilever pawl and creates a height difference between the upper surface of the single cantilever pawl 102a and the upper surface of the annular platform 101. The height difference can be determined according to the upward movement of the single cantilever pawl in actual application. This configuration ensures that regardless of whether the anti-reverse pawl is positioned directly above or to the side of the sound-generating pawl, the upward elastic displacement of the sound-generating pawl will not affect the deformation and offset of the anti-reverse pawl, thus guaranteeing the normal operation of the lacing device. Furthermore, placing the axially engaged single cantilever pawl within the hollowed-out area of ​​the annular platform results in high structural integration and space utilization, eliminating the need for a separate sound-generating pawl component. Compared to radially engaged sound-generating pawls, the axial height of the lacing device is reduced, which is more conducive to miniaturization. Further, the anti-reverse pawl 30 can be configured to adjust the relative rotation direction between the housing 10 and the winding drum 20 according to actual application requirements. For example, in one embodiment, clockwise rotation can be used as the winding direction of the lacing device; while in another embodiment, counterclockwise rotation can be used. In other embodiments, the anti-reverse component can also be the swing arm elastic component in patent CN116509108A, or the offset component in patent CN 202420057882.4.

[0096] See Figure 11 and Figure 12The inner wall of the housing 10 is provided with a buckle 1012, and the spool 20 is provided with an annular groove 202 opposite to the buckle 1012. The annular groove 202 is used to accommodate the tie. The buckle 1012 and the annular groove 202 are engaged with each other to allow the spool 20 and the housing 10 to be rotatably connected relative to each other. Figure 12 As shown, the outer side of the spool 20 is provided with an annular groove 202, and the inner side of the housing 10 is provided with a buckle 1012 corresponding to the upper flange of the annular groove 202. When the spool 20 is installed into the housing 10, the spool 20 can be pushed into the housing 10, and the buckle 1012 rotatably sets the spool 20 in the housing 10 and restricts the axial displacement of the spool.

[0097] Furthermore, the lacing device provided in this application also includes a coil spring, such as... Figure 4 As shown, the coil spring can be set in the cavity 203 surrounding the lower end face of the spool. The working principle and setting method of the coil spring can be found in patent CN202410798218.X. In this application, the free end of a stop block 2031 in the baffle wall of the lower end face of the spool is set as an inclined surface to facilitate the winding of the coil spring when it is initially placed.

[0098] The relative rotation between the sound-generating pawl and the sound-generating groove can be either the sound-generating pawl rotating while the sound-generating groove remains stationary, or the sound-generating pawl remaining stationary while the sound-generating groove rotates. In the above embodiments, the sound-generating pawl is circumferentially fixed to the housing and therefore cannot rotate, while the sound-generating groove is mounted on the winding drum and thus rotates. In other embodiments, the sound-generating groove can be mounted on the housing and remain stationary, while the sound-generating pawl is circumferentially fixed to the winding drum and thus rotates, which can also achieve the function of the sound-generating structure.

[0099] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of the present invention specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of the present invention.

[0100] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0101] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A loosely wound tape sound-generating component, characterized in that, include: The device comprises a housing, a spool, and a ratchet pawl, wherein the spool and the housing are rotatably connected relative to each other, and the ratchet pawl is circumferentially fixedly connected to the housing. The sound-generating pawl is provided with pawl teeth, and the spool is provided with a corresponding sound-generating groove. The pawl teeth and the sound-generating groove cooperate to form a sound-generating structure. The sound-generating structure is configured to generate an audible sound in response to the rotation of the spool along the winding direction and in response to the rotation of the spool along the unwinding direction.

2. The loose-wound tape sound-generating component according to claim 1, characterized in that, The sound-emitting pawl is provided with a single pawl tooth or a group of pawl teeth; the winding drum is correspondingly provided with a single sound-emitting groove or a group of sound-emitting grooves.

3. The loose-wound tape sound-generating component according to claim 2, characterized in that, The sound-generating grooves on the winding drum are arranged in a repeated interval as a single sound-generating groove or a group of sound-generating grooves as groove structure units, and the number of groove structure units is a multiple of the number of sound-generating pawls.

4. The loose-wound tape sound-generating component according to claim 1, characterized in that, The sound-generating ratchet is integrally formed on the housing, or it can be formed separately and then connected to the housing.

5. The loose-wound tape sound-generating assembly according to claim 1, characterized in that, When the spool is subjected to a rotational force, the sound-emitting pawl and the sound-emitting groove are configured to not prevent the spool from rotating relative to the housing.

6. The loose-wound tape sound-generating assembly according to claim 1, characterized in that, The sound-generating pawl is a single cantilever pawl, one end of which is connected to the housing. The movable end of the single cantilever pawl is provided with pawl teeth, which can mesh with the sound-generating groove, and the meshing direction is axial meshing or radial meshing.

7. The loose-wound tape sound-generating component according to claim 1, characterized in that, The sound-generating pawl is a double-armed elastic pawl, with both ends of the double-armed elastic pawl connected to the housing, and the pawl teeth located in the middle of the double-armed elastic pawl. The pawl teeth and the sound-generating groove can mesh with each other, and the meshing direction is axial meshing or radial meshing.

8. The loose-wound tape sound-generating assembly according to claim 7, characterized in that, The dual-arm elastic pawl is provided with one or more, and the one or more dual-arm elastic pawls are connected to each other to form an elastic pawl ring, which is installed in the housing.

9. A loose-wound tape sound-generating component, characterized in that, include: The device comprises a housing, a spool, and a ratchet pawl, wherein the spool and the housing are rotatably connected relative to each other, and the ratchet pawl and the spool are circumferentially fixedly connected. The sound-generating pawl is provided with pawl teeth, and the housing is correspondingly provided with a sound-generating groove. The pawl teeth and the sound-generating groove cooperate to form a sound-generating structure. The sound-generating structure is configured to generate an audible sound in response to the rotation of the spool along the winding direction and in response to the rotation of the spool along the unwinding direction.

10. A strapping device comprising the loose-wrap sound-generating component as described in claim 1, characterized in that, The lacing device further includes: a backstop member, which is fixedly disposed on the housing; The housing further includes an annular platform, and the anti-reverse component is disposed on the first end face of the annular platform; the sound-emitting ratchet is integrally formed with the annular platform, or... The sound-emitting ratchet is circumferentially fixed to the second end face of the annular platform.

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