Long and wide integrated adjustment skate shoe
By introducing a mechanical linkage design of longitudinal and lateral adjustment mechanisms into roller skates, the problem of cumbersome length and width adjustments in existing technologies has been solved, achieving synchronous adjustment, improving comfort and safety, simplifying the structure and reducing the risk of failure.
Patent Information
- Application Number
- CN202521569351.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-25
AI Technical Summary
The existing roller skates have independent length and width adjustment mechanisms, which are cumbersome to operate and cannot be synchronized. Furthermore, the structural width cannot be changed by simply adjusting the tightness of the wrap, resulting in poor fit and comfort.
The design employs a mechanical linkage between a longitudinal adjustment mechanism and a lateral adjustment mechanism to allow for synchronous adjustment of length and width. The automatic width change of the shoe body is achieved through the cooperation of guide columns and oblique grooves, and a locking mechanism is provided to ensure fixation.
It achieves synchronous and automatic adjustment of length and width, improving adjustment efficiency and ease of use, providing effective lateral support and fit, enhancing comfort and safety, simplifying the structure and reducing the risk of failure.
Smart Images
Figure CN224672054U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of roller skate technology, and in particular to a roller skate with integrated length and width adjustment. [Background Technology]
[0002] To cater to different users, especially teenagers whose bodies are still growing, a variety of adjustable roller skates have long been available on the market. These roller skates typically allow users to adjust the length of the skates within a certain range to match the increasing foot length, which extends the product's lifespan to some extent and also makes it easier for consumers to choose.
[0003] In most existing adjustable roller skates, the length and width adjustment mechanisms are independent. After adjusting the length, the user needs to adjust the width using a separate set of knobs, screws, or clips. This separate adjustment method is not only cumbersome and time-consuming, but also structurally complex.
[0004] Some simplified solutions completely omit structural width adjustment, relying solely on Velcro, straps, or buckles to tighten the shoe and accommodate different foot shapes. This approach merely adjusts the tightness of the fit without fundamentally altering the width of the rigid structure of the sole and upper. Therefore, for users with wider or narrower feet, this adjustment method fails to provide effective lateral support and a snug fit, easily causing the foot to wobble inside the shoe, resulting in poor comfort and serious safety hazards. [Utility Model Content]
[0005] The purpose of this invention is to provide an integrated length and width adjustable roller skate, which aims to solve the technical problems in the prior art, such as the roller skate length and width adjustment mechanisms being independent of each other, cumbersome operation, inability to match synchronously, or only being able to adjust the tightness of the wrap without changing the structural width, resulting in poor fit and comfort.
[0006] This utility model is achieved through the following technical solution:
[0007] A roller skate with integrated length and width adjustment includes a sole cover and a corresponding upper for wrapping the foot. The upper and the sole cover are provided with a longitudinal adjustment mechanism for adapting to different foot lengths and a lateral adjustment mechanism for adapting to different foot widths. When the state of the longitudinal adjustment mechanism changes, the state of the lateral adjustment mechanism changes synchronously.
[0008] As described above, the roller skate with integrated length and width adjustment includes a footplate, the edge of which extends upward to form a back of the foot for wrapping the foot. The lateral adjustment mechanism includes first guide posts located on both sides of the middle of the sole, and the first guide posts are connected to oblique grooves located on both sides of the footplate. Each oblique groove has an arc groove on its inward side. When the longitudinal adjustment mechanism is adjusted, the first guide posts slide in conjunction with the oblique grooves, forcing the sides of the footplate to move laterally, thereby causing the sides of the back of the foot to contract or expand synchronously.
[0009] As described above, in the roller skates with integrated length and width adjustment, the arc groove is a hollow groove.
[0010] As described above, in roller skates with integrated length and width adjustment, the arc openings of the arc grooves face their corresponding oblique grooves.
[0011] As described above, the roller skate with integrated length and width adjustment includes a second guide post at the front of the sole cover, a first groove on the foot plate that cooperates with the second guide post, a third guide post at the rear of the sole cover, and a second groove parallel to the first groove at the rear of the foot plate.
[0012] As described above, the roller skates with integrated length and width adjustment also include a locking mechanism between the shoe body and the sole cover.
[0013] As described above, the roller skate with integrated length and width adjustment includes a locking mechanism comprising a first mounting groove at the rear of the footplate, a locking block fixedly connected to the first mounting groove, a first locking tooth portion passing through the footplate on the locking block, a second mounting groove at the rear of the sole cover, an mounting channel corresponding to the second mounting groove on one side of the rear of the sole cover, and a locking hook cooperating with the locking block in the second mounting groove.
[0014] As described above, the roller skate with integrated length and width adjustment includes a locking hook that can engage with the first locking tooth portion. One end of the second locking tooth portion is provided with an elastic connecting portion, which is connected to one end of an elastic member. The other end of the elastic member abuts against the inner wall of the second mounting groove. The other end of the second locking tooth portion is provided with an operating portion located in the mounting channel.
[0015] As described above, the roller skates with integrated length and width adjustment have mounting holes on both sides of the sole cover for connecting auxiliary fixing components.
[0016] As described above, the roller skates with integrated length and width adjustment have an upper connected to the upper part of the sole cover for wrapping the ankle and lower leg; and a wheel frame connected to the bottom part of the sole cover for mounting wheels.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] 1. This utility model achieves synchronous and automatic adjustment of length and width by mechanically linking the longitudinal and lateral adjustment mechanisms. Users only need to adjust the length once, and the width of the roller skate will adaptively change accordingly. This completely solves the cumbersome problem of requiring multiple separate operations in existing technologies, greatly improving adjustment efficiency and ease of use.
[0019] 2. This invention fundamentally changes the width of the rigid structure of the shoe body and sole cover, rather than merely adjusting the tightness of the shoe body's fit. This structural adjustment allows the roller skates to truly match the user's foot shape, providing effective lateral support and a perfect fit, whether the foot is too wide or too narrow, preventing foot swaying inside the shoe, thereby significantly improving wearing comfort and safety during exercise.
[0020] 3. This utility model adopts an integrated design concept, which cleverly couples the two adjustment functions together. Compared with the scheme of setting two independent adjustment mechanisms, the overall structure is simpler and more compact, reducing manufacturing costs and potential failure risks. [Attached Image Description]
[0021] To more clearly illustrate the technical solutions in the embodiments of the utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0022] Figure 1 This is a three-dimensional structural diagram of this embodiment;
[0023] Figure 2 This is an exploded structural diagram of this embodiment;
[0024] Figure 3 This is a schematic diagram of the assembly structure of the shoe body and sole cover in this embodiment;
[0025] Figure 4 This is a three-dimensional structural diagram of the shoe sole cover in this embodiment;
[0026] Figure 5 This is an exploded view of the shoe sole cover in this embodiment;
[0027] Figure 6 This is a three-dimensional structural diagram of the front of the shoe body in this embodiment;
[0028] Figure 7This is a three-dimensional structural diagram of the back of the shoe in this embodiment;
[0029] Figure 8 This is a schematic diagram of the mating structure of the locking block and the locking hook in this embodiment;
Detailed Implementation Methods
[0030] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.
[0031] Please refer to the appendix. Figures 1 to 8 This embodiment provides an integrated adjustable roller skate, comprising a sole cover 1 serving as a base, and a shoe body 2 that slides relative to the sole cover 1 and wraps around the user's foot. To accommodate different foot shapes, an interconnected adjustment mechanism is provided between the shoe body 2 and the sole cover 1. Specifically, this includes a longitudinal adjustment mechanism 3 for accommodating different foot lengths and a lateral adjustment mechanism 4 for accommodating different foot widths. These two mechanisms do not operate independently but are mechanically linked. When the user operates the longitudinal adjustment mechanism 3 to change the effective length of the roller skate, the lateral adjustment mechanism 4 simultaneously and automatically changes its state, thereby altering the width of the roller skate, achieving a convenient effect of simultaneous adjustment. In contrast, existing roller skate width adjustment mechanisms are usually set up independently, requiring users to perform multiple tedious operations to adjust the length and width separately, making it difficult to achieve the desired result in one step. Other solutions only adjust the tightness of the shoe's fit through Velcro or straps, but this does not structurally change the actual width of the sole, resulting in unsatisfactory fit and comfort for users with wide or narrow feet.
[0032] Furthermore, as a specific implementation of this embodiment, the shoe body 2 is mainly composed of a basically horizontally arranged foot plate surface 21 and its edges extending upward integrally to form a back of the foot 22 for wrapping the sides of the foot. The specific structure of the lateral adjustment mechanism 4 includes first guide posts 41 protruding upward on the left and right sides of the middle of the sole sleeve 1; correspondingly, oblique grooves 42 are provided on both sides of the foot plate surface 21 of the shoe body 2, which can slide and cooperate with the first guide posts 41. When the shoe body 2 moves longitudinally back and forth relative to the sole sleeve 1, the fixed first guide posts 41 will slide in the oblique grooves 42. Since the grooves are obliquely arranged, this relative sliding will generate a lateral component force, thereby forcing the sides of the foot plate surface 21 to undergo lateral displacement, and driving the sides of the back of the foot 22 to simultaneously contract or expand, so as to automatically match the width of the foot. To further enhance the reliability of the structural connection, the top of the first guide post 41 is preferably provided with an internal threaded hole, so that it is essentially a stud. After the shoe body 2 is installed in place, a limiting screw with a larger head can be screwed into the first guide post 41 from above the oblique groove 42. The head diameter of this limiting screw (not shown in the figure) can be larger than the width of the oblique groove 42, but its rod can slide freely within the groove. In this way, normal adjustment and sliding are not affected, and the accidental vertical detachment of the shoe body 2 from the sole cover 1 is absolutely prevented, greatly improving the safety of the product.
[0033] To ensure smooth lateral deformation without structural damage, the lateral adjustment mechanism 4 also includes a crucial elastic compensation structure. Specifically, an arc-shaped groove 43 is formed on one side of each of the inclined grooves 42 facing the center line of the foot plate surface 21. This arc-shaped groove 43 is a hollow groove, that is, a through groove penetrating the foot plate surface 21. Its function is to provide a space for stress release and elastic deformation when the foot plate surface 21 is subjected to lateral force, so that the two sides of the foot plate surface 21 can generate a recoverable lateral bending under the action of external force.
[0034] As a preferred geometric configuration, the arc openings of the arc grooves 43 are respectively oriented toward their corresponding oblique grooves 42. This arrangement helps to more effectively guide and disperse the internal stress generated during deformation, ensuring the smoothness of the adjustment process and the resilience of the structure.
[0035] Furthermore, the specific structure of the longitudinal adjustment mechanism 3 in this embodiment includes: one or more second guide posts 31 are provided at the front of the sole cover 1, and a first waist groove 32 that can slide and cooperate with it is correspondingly provided at the front of the foot plate surface 21; at the same time, one or more third guide posts 33 are provided at the rear of the sole cover 1, and one or more second waist grooves 34 parallel to the first waist groove 32 are correspondingly provided at the rear of the foot plate surface 21. The cooperation of the first waist groove 32 and the second guide post 31, and the second waist groove 34 and the third guide post 33 together constitute a stable and reliable longitudinal sliding guide rail system, ensuring that the shoe body 2 can only move precisely along the preset longitudinal path during the adjustment process, preventing unnecessary deflection or shaking. Similar to the structure of the first guide post 41, the second guide post 31 and the third guide post 33 in this embodiment also function as studs, and their top ends are provided with threaded holes. During assembly, the corresponding limiting screws pass through the first waist groove 32 and the second waist groove 34 and are screwed into the guide post. Through the limiting effect of the screw head on the edge of the groove, the shoe body 2 is reliably locked on the sliding plane of the sole 1, forming a stable whole that can be slidably adjusted without separating.
[0036] Furthermore, as another optional implementation structure for the core length and width adjustment linkage concept of this embodiment, the adjustment mechanism characterized by "moving groove and stationary column" can also be replaced by a "stationary groove and moving column" linkage-slide rail system, which can also achieve synchronous length and width adjustment. In this alternative, the motion conversion is mainly accomplished by the linkage mechanism cooperating with guide rails of a specific shape. Specifically, the upper surface of the sole 1 has two symmetrical, V-shaped or figure-eight-shaped fixed oblique guide rails (not shown in the figure) formed integrally. These two guide rails constitute a fixed motion trajectory. Correspondingly, the bottom of both sides of the foot plate surface 21 of the shoe body 2 has a guide pin (not shown in the figure) that can rotate or slide freely, fixed by means of pins or bearings. These two guide pins are respectively housed in the two fixed oblique guide rails and can slide freely therein. The working principle is as follows: when the user pushes the shoe body 2 forward longitudinally as a whole, the two guide pins located at the bottom of the shoe body 2 are forced to move along the V-shaped oblique guide rails fixed on the sole 1. Since the guide rail gradually expands outward, the movement trajectory of the guide pin inevitably includes a lateral outward component, thereby causing the wings on both sides of the shoe body 2 connected to it to expand outward synchronously, thus increasing the width. Conversely, when the shoe body 2 is pulled backward, the guide pin slides inward along the gradually narrowing guide rail, causing the wings on both sides to contract synchronously.
[0037] To reliably secure the shoe upper 2 and sole cover 1 after adjustment, preventing accidental slippage during use, a locking mechanism 5 is further provided between the shoe upper 2 and sole cover 1 as a preferred embodiment. Regardless of the aforementioned linkage adjustment mechanism, the following locking scheme can be applied. This locking mechanism 5 is a mechanical device that can be quickly unlocked manually and automatically locked.
[0038] Specifically, the locking mechanism 5 includes a first mounting groove 51 at the tail of the footplate 21, in which a locking block 52 is fixedly connected. The locking block 52 has one or more rows of first locking teeth 53 that pass upward or downward through the footplate 21. Correspondingly, a second mounting groove 54 is provided at the tail of the sole cover 1, and a mounting channel 55 communicating with the second mounting groove 54 is provided on one side end face of the tail of the sole cover 1. A locking hook 56 that can cooperate with the locking block 52 is movably provided in the second mounting groove 54.
[0039] As a specific and reliable implementation, the locking hook 56 includes a main body portion on which a second locking tooth portion 561 is formed, capable of engaging with the teeth of the first locking tooth portion 53. One end of the second locking tooth portion 561 is connected to one end of an elastic member 563 via an elastic connecting portion 562, and the other end of the elastic member 563 abuts against the inner wall of the second mounting groove 54. The elastic member 563 can take various forms commonly used in the art, such as a metal coil spring, a compression spring, or an elastic polymer block, etc., and its function is to continuously apply a preload force so that the second locking tooth portion 561 remains engaged and locked with the first locking tooth portion 53 in its natural state. The other end of the second locking tooth portion 561 extends to form an operating portion 564, which passes through and is exposed outside the mounting channel 55, facilitating user pressing with their fingers. When the length needs to be adjusted, the user presses the operating part 564, which causes the locking hook 56 to move against the elastic force of the elastic member 563, so that the second locking tooth 561 disengages from the first locking tooth 53. At this time, the lock is released, and the user can freely push and pull the shoe body 2 to adjust the length. After adjusting to the appropriate position, the user releases the operating part 564, and the elastic member 563 will automatically reset, pushing the locking hook 56 to re-engage with the first locking tooth 53 to complete the locking.
[0040] Furthermore, as an equally feasible alternative implementation, the locking mechanism 5 can also be implemented using a cam eccentric locking mechanism. In this scheme, a locking handle (not shown in the figure) that can rotate about a pivot can be provided on the side of the sole cover 1. The head of the handle is designed as an eccentric wheel or an irregularly shaped cam. Correspondingly, a flat and wear-resistant pressing surface (not shown in the figure) can be provided on the side wall of the shoe body 2. When adjustment is required, the user moves the locking handle to the unlock position, for example, vertically upward. At this time, the minimum radius of the cam faces the pressing surface, and there is a gap or minimal contact force between the two, allowing the shoe body 2 to slide freely. After adjustment to the target position, the user moves the locking handle down 90 degrees to the locked position, for example, horizontally. During this process, the radius of the cam increases, thereby generating increasingly greater positive pressure on the pressing surface of the shoe body 2. Due to the effect of friction, this huge positive pressure generates frictional resistance sufficient to resist the impact force during movement, thus firmly locking the position of the shoe body 2 and the sole cover 1. The advantage of this scheme is that the locking force is huge and the operation is intuitive.
[0041] Furthermore, those skilled in the art can conceive of other equivalent locking methods. For example, a screw-tightening mechanism that achieves friction locking by passing a manually tightenable hand-tightened screw through the sole cover 1 and pressing against the shoe body 2; or, a pin positioning mechanism that provides a row of positioning holes on the sole cover 1 and a spring-loaded pin on the shoe body 2, achieving segmented positioning by inserting the pin into different holes. Although these different locking schemes have different structures, they can all reliably fix the relative positions of the shoe body and the sole cover, and therefore should all be considered to fall within the protection concept of this utility model.
[0042] Furthermore, as an optional implementation, to enhance the functionality and connectivity of the roller skates, the sole cover 1 can also be provided with mounting holes 6 on both sides for connecting auxiliary fixing components such as brakes and protective blocks. Besides being used to install traditional components like brakes, these mounting holes 6, in this embodiment, serve an important function of installing and fixing auxiliary fixing components such as Velcro straps for adjusting the fit. This not only fundamentally solves the problem of structural width self-adaptation through the core linkage adjustment mechanism, but also retains the option for users to personalize the fit using traditional straps. The two functions complement each other, working together to provide the user with the optimal wearing and usage experience.
[0043] Furthermore, the upper end of the sole cover 1 is connected to the upper 7 for wrapping the ankle and lower leg by means of riveting, screwing, pivoting or integral molding; and the bottom end is connected to the wheel frame 8 for installing pulleys by standard fasteners such as screws.
[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A roller skate with integrated length and width adjustment, comprising a sole cover (1) and a corresponding shoe body (2) for wrapping the foot, characterized in that, The shoe body (2) and the shoe sole cover (1) are provided with a longitudinal adjustment mechanism (3) for adapting to different foot lengths and a lateral adjustment mechanism (4) for adapting to different foot widths. When the state of the longitudinal adjustment mechanism (3) changes, the state of the lateral adjustment mechanism (4) changes synchronously.
2. The roller skates with integrated length and width adjustment according to claim 1, characterized in that, The shoe body (2) includes a foot plate surface (21), and the edge of the foot plate surface (21) extends upward to the back of the foot (22) for wrapping the foot. The lateral adjustment mechanism (4) includes a first guide post (41) respectively disposed on both sides of the middle part of the shoe sole (1). The first guide post (41) is connected to an oblique groove (42) respectively disposed on both sides of the foot plate surface (21). An arc groove (43) is provided on the inward side of each oblique groove (42). When the longitudinal adjustment mechanism (3) is adjusted, the first guide post (41) slides with the oblique groove (42), forcing the two sides of the foot plate surface (21) to move laterally, thereby driving the two sides of the back of the foot (22) to shrink or expand synchronously.
3. The roller skate with integrated length and width adjustment according to claim 2, characterized in that, The arc groove (43) is a hollow groove.
4. The roller skate with integrated length and width adjustment according to claim 2, characterized in that, The arc openings of the arc groove (43) are respectively oriented toward their corresponding oblique grooves (42).
5. The roller skates with integrated length and width adjustment according to claim 2, characterized in that, The longitudinal adjustment mechanism (3) includes a second guide post (31) located at the front of the sole cover (1), a first waist groove (32) that cooperates with the second guide post (31) is provided on the foot plate surface (21), a third guide post (33) is provided at the tail of the sole cover (1), and a second waist groove (34) that is parallel to the first waist groove (32) is provided at the tail of the foot plate surface (21).
6. The roller skates with integrated length and width adjustment according to claim 2, characterized in that, A locking mechanism (5) is also provided between the shoe body (2) and the shoe sole cover (1).
7. The roller skates with integrated length and width adjustment according to claim 6, characterized in that, The locking mechanism (5) includes a first mounting groove (51) opened at the tail of the foot plate surface (21), a locking block (52) is fixedly connected to the first mounting groove (51), the locking block (52) is provided with a first locking tooth (53) passing through the foot plate surface (21), the tail of the shoe sole (1) is provided with a second mounting groove (54), one side end of the tail of the shoe sole (1) is provided with an installation channel (55) corresponding to the second mounting groove (54), and the second mounting groove (54) is provided with a locking hook (56) that cooperates with the locking block (52).
8. The roller skates with integrated length and width adjustment according to claim 7, characterized in that, The locking hook (56) includes a second locking tooth (561) that can engage with the first locking tooth (53). One end of the second locking tooth (561) is provided with an elastic connecting part (562). The elastic connecting part (562) is connected to one end of an elastic member (563). The other end of the elastic member (563) abuts against the inner wall of the second mounting groove (54). The other end of the second locking tooth (561) is provided with an operating part (564) located in the mounting channel (55).
9. The roller skates with integrated length and width adjustment according to claim 1, characterized in that, The shoe sole cover (1) has mounting holes (6) on both sides for connecting auxiliary fixing components.
10. The roller skates with integrated length and width adjustment according to claim 1, characterized in that, The upper end of the sole cover (1) is connected to a shoe upper (7) for wrapping the ankle and lower leg; the lower end of the sole cover (1) is connected to a wheel frame (8) for installing pulleys.