Telescoping shoe plate structure

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a telescoping shoe plate structure, and particularly a telescoping shoe plate structure which could match various wheeled shoes with different appearance styles according to personal preference, and can be adjusted according to the different lengths and widths of the feet of the users.

Description of the Related Art

In-line skating has become a popular sport in recent years, especially for young people. The conventional in-line skating structure is mainly a shoe cover fixed on the top of the in-line skating wheels, and in order to adapt to different user's foot shape, there are some telescopic shoe plate structure with a length adjustment structure and a width adjustment structure. But the length and width adjustment structures are separate, and must be adjusted by hand, which are quite inconvenient.

Among them, as shown in TW Patent No. TW435255U “Structure of Threaded Rod-type Length Adjustment for In-line Skates”, the in-line skates is mainly composed of a telescopic shoe plate structure body and a shoe cover, with a threaded portion fixed at the bottom of the shoe cover, a screw provided under the telescopic shoe plate structure body, a knob provided at the outer end of the screw, and a positioning groove formed at a distance around the periphery of the knob, a pivot plate pivoted on the in-line wheel body, and a positioning block formed at the end of the pivot plate for being clamped in the positioning groove. When rotating the knob to driving the screw to rotate, the threaded portion of the knob will drive the shoe cover to move in a planar direction, so as to adjust the length between the shoe cover and the main body of the telescopic shoe plate structure, and position the positioning block on the pivot piece in the positioning groove on the knob, so that the shoe cover and the main body of the telescopic shoe plate structure can be maintained at a fixed length, thereby conveniently adjusting the length by rotating the knob from outside of the telescopic shoe plate structure without hand tools.

Also, as shown in China Patent No. CN212818025U “In-Line Wheeled Shoes” which discloses another type of telescoping structure, the wheeled shoes mainly comprises an in-line wheeled shoe body and a shoe cover, and the upper surface of the shoe cover has a middle portion. When the in-line wheeled shoe body and the shoe cover are elongated in a straight direction relative to each other, a first wing portion of the upper surface expands transversely against the middle portion by a first structure, and a second wing portion of the upper surface expands transversely against the middle portion by a second structure, and the first wing portion and the second wing portion move transversely in a reverse direction. In this way, the length and width of the in-line wheeled shoe can be adjusted at the same time when the in-line wheeled shoe body is stretched in a straight direction relative to the shoe cover by the reverse expansion of the two wing portions and the positioning of a clamping structure.

In actual use, the above two types of in-line skate structures are capable of adjusting the length of the in-line skate, or adjusting the length and width at the same time, so as to facilitate the use by users with different foot shapes. However, the threaded portion of the TW435255U patent is fixed at the bottom of the shoe cover, and the screw is fixed at the bottom of the telescopic shoe plate structure body, that is to say, the “screw-type length adjustment structure” and the in-line skates are integrated as a single piece; whereas the in-line skate body and shoe cover of the CN212818025U patent are separated into two relatively telescopic pieces. In this way, since one type of in-line skates needs to be matched with a specific type of “expansion and contraction structure”, the user, when purchasing the in-line skates, will be limited by the overall style of the in-line skates, and will not be able to choose different in-line skates with the same “expansion and contraction structure” according to his/her personal preference.

SUMMARY OF THE INVENTION

In view of this, in order to provide a structure that is different from the conventional technology, the inventors are diligent in developing and researching, and keep testing and accumulating experience, and finally gain a creation that can solve the above drawbacks.

An objective of the present invention is to solve the problem that the customary telescopic in-line skates are limited by the overall appearance of the in-line skates and it is impossible to choose different in-line skates with the same “telescopic structure” according to one's preference. By a telescoping shoe plate structure composed of an upper shoe plate and a lower shoe plate of the present invention, which can be accommodated and positioned in the interior space of the in-line skate, it provides flexibility for the users to choose in-line skate with various appearance styles according to their personal preferences, and allows the users to adjust based on the lengths and widths of users' feet.

In order to achieve the objective above, the telescoping shoe plate structure of the present invention mainly comprises an upper shoe plate and a lower shoe plate. The upper shoe plate has an upper guide portion on a surface of the upper shoe plate, a front portion and a rear portion in the long direction of the upper shoe plate, a first moving portion on one side of the front portion, and a second moving portion on the other side of the front portion. The rear portion has an upper clamping member; and the upper shoe plate is combined with a pushing member for pushing the upper shoe plate. The lower shoe plate has a lower guide portion on a surface of the lower shoe plate, and the lower guide portion is connected to the upper guide portion for the upper shoe plate and the lower shoe plate to extend and retract in a relatively straight direction. The lower shoe plate has a lower clamping member, and the lower clamping member is connected to the upper clamping member for positioning the upper shoe plate and the lower shoe plate.

In one implementation, the upper guide portion comprises a straight groove; wherein the lower guide portion comprises a first straight rod portion and a first limiting member, and the first straight rod portion is on the surface of the lower shoe plate and passes through the straight groove; and wherein the first limiting member is connected to one end of the first straight rod portion for limiting the front portion of the upper shoe plate.

In one implementation, the first moving portion comprises a first arcuate spring, and the second moving portion comprises a second arcuate spring, and wherein the first arcuate spring and the second arcuate spring expands laterally in opposite directions.

In one implementation, the surface of the lower shoe plate has a long guide groove, and a bottom of the upper shoe plate has the pushing member, wherein the pushing member comprises a second straight rod portion and a pushing portion, and the second straight rod portion passes through the long guide groove and pushes the upper shoe plate by the pushing portion.

In one implementation, the present invention further includes a second limiting member which downwardly presses against the rear portion of the upper shoe plate, wherein the second limiting member has a first engaging portion, and the surface of the lower shoe plate has a second engaging portion for one end of the first engaging portion to be connected.

In one implementation, the second limiting member comprises a compression plate and the first engaging portion, wherein the compression plate downwardly presses against the rear portion of the upper shoe plate, and the first engaging portion comprises at least one positioning post; and wherein the second engaging portion comprises at least one positioning hole for correspondingly limiting the at least one positioning post.

In one implementation, a bottom of the lower shoe plate has a flat portion for being accommodated and positioned in an interior space of a wheeled shoe; and wherein the lower shoe plate has an elevation portion upwardly extending from the circumference of the lower shoe plate for restricting one feet of a user.

In one implementation, the upper clamping member comprises a positioning rack which protrudes downwardly from the surface the rear portion of the upper shoe plate; wherein the lower shoe plate has a positioning guide groove on the elevation portion, and the lower clamping member comprises an engaging member and a restoring member, and one end of the engaging member is limited in the positioning guide groove, and the other end of the engaging member has positioning teeth for catching the positioning rack; and wherein the one end of the restoring member is connected to the engaging member for restoring the engaging member to an original position after it is moved.

The invention will become better understood with regard to the following detailed description of the preferred but non-limiting embodiments. The following description is made with reference to the accompanying drawings and denotations to describe specific content and expected results of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 depicts exploded views of a preferred embodiment of the present invention.

FIG. 2 depicts a perspective view of some components of a preferred embodiment of the present invention.

FIG. 3 depicts a perspective view of a preferred embodiment of the present invention.

FIG. 4 depicts a sectional view of FIG. 3 along the A-A′ section.

FIG. 5 depicts a schematic diagram of a preferred embodiment of the present invention.

FIG. 6 depicts another schematic diagram of a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The telescoping shoe plate structure of the present invention is used to be accommodated and positioned in the interior space of a wheeled shoe. The telescoping shoe plate structure mainly comprises an upper shoe plate and a lower shoe plate. The upper shoe plate has an upper guide portion on a surface of the upper shoe plate, a front portion and a rear portion in the long direction of the upper shoe plate, a first moving portion on one side of the front portion, and a second moving portion on the other side of the front portion. The rear portion has an upper clamping member; and the upper shoe plate is combined with a pushing member. The lower shoe plate has a lower guide portion on a surface of the lower shoe plate, and the lower guide portion is connected to the upper guide portion. Further, the lower shoe plate has a lower clamping member, and the lower clamping member is connected to the upper clamping member. Therefore, the upper and lower shoe plates are allowed to relatively extend and retract to adjust the length, and the width could be adjusted by the first and second moving portions.

Please refer to FIGS. 1 to 6, which are a preferred embodiment of the telescoping shoe plate structure of the present invention. The telescoping shoe plate structure mainly comprises an upper shoe plate 2 and a lower shoe plate 3. The upper shoe plate 2 has a front portion 21 and a rear portion 22 in its long direction, and a surface of the front portion 21 has an upper guide portion 211 with a straight groove 212. The straight groove 212 penetrates through the surface of the front portion 21, and is parallel to the long direction of the upper shoe plate 2. The front portion 21 has a first moving portion 23 on one side of its surface, and the first moving portion 23 comprises a first arcuate spring 231, and a first notch 232 is formed between the first arcuate spring 231 and one side of the surface of the front portion 21, so as to allow the first arcuate spring 231 to produce an elasticity of lateral expansion; when implemented, it could simultaneously produce the elasticity of lateral expansion or contraction. The front portion 21 has a second moving portion 24 on the other side of its surface, and the second moving portion 24 comprises a second arcuate spring 241, and a second notch 242 is formed between the second arcuate spring 241 and the other side of the surface of the front portion 21, so as to allow the second arcuate spring 241 to produce an elasticity of lateral expansion; when implemented, it could simultaneously produce the elasticity of lateral expansion or contraction. The rear portion 22 having an upper clamping member 221 with an elongated positioning rack 222. The positioning rack 222 protrudes downwardly from the surface the rear portion 22, and the long direction of the positioning rack 222 is parallel to the long direction of the upper shoe plate 2. A quadrangle short post downwardly protrudes from one side of the surface of the rear portion 22, which serves as a second straight rod portion 223.

The lower shoe plate 3 has a flat plate portion 31 with a flat portion 32 on its bottom, and an elevation portion 33 upwardly extending from the circumference of the flat plate portion 31, such that when the upper shoe plate 2 and the lower shoe plate 3 are combined and simultaneously accommodated in the interior space of a wheeled shoe, the flat portion 32 of the lower shoe plate 3 could be downwardly pressed and positioned, thereby limiting the foot of the user in the elevation portion 33 for in-line skating. The elevation portion 33 has a positioning guide groove 331 which laterally penetrates it. A first straight rod portion 341 upwardly protrudes from the surface of the lower shoe plate 3 and upwardly passes through the straight groove 212. The top end of the first straight rod portion 341 is clamped and connected with a head screw, which serves as a first limiting member 342, thereby restricting the moving direction of the first straight rod portion 34 and limiting the movement of the front portion 21 of the upper shoe plate 2, so as to prevent the front portion 21 from separating from the flat plate portion 31 of the lower shoe plate 3; when implemented, the first straight rod portion 341 and the first limiting member 342 are combined as the lower guide portion 34.

The surface of the flat plate portion 31 has a long guide groove 35 which penetrates through the lower shoe plate 31. When the upper shoe plate 2 is stacked on the top of the flat plate portion 31, one end of the second straight rod section 223 downwardly penetrates through the long guide groove 35, and then locks onto a pushing portion 224; when implemented, the second straight rod section 223 and the pushing portion 224 are combined as a pushing member 225. Further, the flat plate portion 31 has a lower clamping member 36 below its rear end surface. The lower clamping member 36 includes an engaging member 37 and a restoring member 38, and the engaging member 37 is a long column with a head portion 371 at one end, and the head portion 371 of the engaging member 37 is limited to the positioning guide groove 331 of the elevation portion 33. The other end of the engaging member 37 has a positioning tooth 372, and the positioning tooth 372 corresponds to the positioning rack 222 of the upper shoe plate 2. The restoring member 38 is a compression spring, and the restoring member 38 is positioned inside the lower shoe plate 3. One end of the restoring member 38 is coaxially connected to the other end of the engaging member 37, so as to stabilize the position of the engaging member 37, and allow the engaging member 37 to return to its original position after being moved.

A second limiting member 39 is provided above the rear surface of the flat plate portion 31, and the second limiting member 39 has an elongated sheet-like compression plate 391. The underside of the surface of the compression plate 391 has two parallel and downwardly protruded positioning posts (392,392′), which are combined as a first engaging portion 393. One end of each of the positioning posts (392,392′) is inserted into the positioning holes (311,311′) of the flat plate portion 31 respectively, such that the two positioning holes (311,311′) correspondingly limit the two positioning posts (392,392′) to allow the compression plate 391 downwardly presses against the rear portion 22 of the upper shoe plate 2, thereby preventing the rear portion 22 from separating from the flat plate portion 31 of the lower shoe plate 3; when implemented, the two positioning holes (311,311′) are combined as the first engaging portion 312.

Therefore, when the user presses the head portion 371 at one end of the engaging member 37, the positioning teeth 372 and the positioning rack 222 can be separated, so that the upper shoe plate 2 and the lower shoe plate 3 can form a state that can be extended and contracted in a straight direction opposite to each other. When pushing the pushing member 225 to move the upper shoe plate 2, and then loosening the head portion 371 again, it can allow the positioning teeth 372 and the positioning rack 222 to return to the state of being interconnected with each other, thus allowing the upper shoe plate 2 and the lower shoe plate 3 to generate a fixed length to be applicable to the length of one of the feet of a different user; and through the flexible expansion or contraction in the opposite direction of the first arcuate spring 231 and the second arcuate spring 241, it is possible to be applicable to the width of one of the feet of a different user, so as to facilitate use by the users with different lengths and widths of the feet.

In summary, based on the disclosure above, the present invention does achieve the intended purpose of providing a telescoping shoe plate structure that not only can be accommodated and positioned in the inner space of a wheeled shoe by combining and connecting the upper and lower shoe plates, but also allows the user to flexibly choose in-line skates with different outlooks according to personal preference, and the length and width could be to be adjusted in accordance with the user's foot.

An embodiment of the present invention and the technical means applied are as described above. Based on the disclosure or teaching of the description, numerous variations and modifications may be derived, which are to be considered as equivalent changes of the concept of the present invention. Hence, the effectiveness generated by such variations and modifications are within the substantial spirits covered by the description and drawings, and are to be encompassed within the technical scope of the present invention.

It should be understood that different modifications and variations could be made from the disclosures of the present invention by the people familiar in the art, which should be deemed without departing the spirit of the present invention.