CN216886103U - Wheel structure and scooter - Google Patents

Abstract

The present application relates to a wheel structure and scooter, the wheel structure includes: a hub having a rim including a second circumferential outer surface and first and second sides on the second circumferential outer surface; a tire disposed on said hub and in contact with at least said second circumferential outer surface; wherein the second circumferential outer surface is formed with at least one second open groove, the second open groove penetrates the first side surface and the second side surface in the length direction, and the width dimension of the second open groove is gradually reduced from the groove bottom to the opening. The scooter comprises the wheel structure.

Description

Wheel structure and scooter

The application is a divisional application with the application date of 2021, month 07 and 08, the application number of 202121552096.4 and the name of a scooter.

Technical Field

The present application relates to the field of tires and sports vehicles, and more particularly to a wheel structure and scooter.

Background

The scooter is a popular sports apparatus in the current market, can be used as a body-building sports apparatus for leisure and entertainment, can also be used as a temporary transportation and transportation tool, has small volume, light weight and convenient carrying, and is deeply favored by teenagers and children at home and abroad.

The existing partial scooter does not have a steering automatic reset function, a supporting rod folding function or a supporting rod stepless length adjusting function, unpleasant vibration feeling can be generated in the driving process, or wheels shrink easily.

SUMMERY OF THE UTILITY MODEL

In view of this, there is a need for a wheel construction and scooter that addresses at least one of the deficiencies noted in the background above.

In one aspect, a wheel structure is provided, comprising: a hub having a rim including a second circumferential outer surface and first and second sides on the second circumferential outer surface; a tire disposed on said hub and in contact with at least said second circumferential outer surface; wherein the second circumferential outer surface is formed with at least one second open groove, the second open groove penetrates the first side surface and the second side surface in the length direction, and the width dimension of the second open groove is gradually reduced from the groove bottom to the opening.

The wheel structure of the above embodiment can reduce the degree of depression of the tire at the open groove by improving the open groove of the rim to gradually reduce the width from the groove bottom to the opening, thereby reducing the vibration feeling during running.

In one embodiment, the second circumferential outer surface has a plurality of second open grooves formed thereon, and the plurality of second open grooves are equally spaced along the second circumferential outer surface.

In one embodiment, the tire further includes a light emitting portion provided in the second open groove, and the tire has a light transmitting portion corresponding to the light emitting portion through which light emitted from the light emitting portion is transmitted.

In one embodiment, the rim defines a plurality of through holes extending through the first and second side surfaces.

In one embodiment, the tire is an injection molded soft rubber article.

In one embodiment, the tyre comprises a third circumferential outer surface capable of contacting with the ground and a fourth circumferential outer surface capable of contacting with the second circumferential outer surface, wherein an annular glue drawing groove is formed between the third circumferential outer surface and the fourth circumferential outer surface, and a plurality of glue drawing channels communicating the annular glue drawing groove with the external environment are formed in the fourth circumferential outer surface.

In one embodiment, a plurality of the glue taking channels are distributed at equal intervals along the fourth circumferential outer surface.

In another aspect, a wheel structure is provided, including: a hub having a rim, the rim including a second circumferential outer surface; a tire disposed on the hub and in contact with the second circumferential outer surface; the tire is a soft rubber product formed by injection molding, and comprises a third circumferential outer surface capable of being in contact with the ground and a fourth circumferential outer surface in contact with the second circumferential outer surface, wherein an annular glue drawing groove is formed between the third circumferential outer surface and the fourth circumferential outer surface, and a plurality of glue drawing channels communicated with the annular glue drawing groove and the external environment are formed in the fourth circumferential outer surface.

The wheel structure of the above embodiment can prevent the tire from shrinking due to too thick rubber.

In one embodiment, the hub is an injection molded hard rubber article.

In yet another aspect, a scooter is provided that includes front left, front right and rear wheels having a wheel structure of at least one of the foregoing embodiments.

The scooter of the above embodiment does not produce unpleasant vibration feeling or the wheel is not easily shrunk during the running process.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application, and the description of the exemplary embodiments of the application are intended to be illustrative of the application and are not intended to limit the application.

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a perspective view of a scooter according to one embodiment;

FIG. 2 is an exploded view of a portion of the structure of the scooter of FIG. 1;

FIG. 3 is a cross-sectional view of the left front wheel steering structure of the scooter of FIG. 1;

FIG. 4 is an exploded view of the steering structure of the scooter of FIG. 1;

FIG. 5 is a schematic structural view of a connection portion of a support bar and a footrest of the scooter of FIG. 1;

FIG. 6 is a perspective view of the lower end of the support pole of FIG. 5;

FIG. 7 is a perspective view of the catch member of the brace of FIG. 6;

FIG. 8 is a sectional view showing the structure of a lower end portion of the support pole of FIG. 6;

FIG. 9 is a perspective view showing the structure of a lower end portion of the support pole of FIG. 6;

FIG. 10 is a cross-sectional view of the scooter support bar of FIG. 1 in a first position;

FIG. 11 is a cross-sectional view of the scooter support lever of FIG. 1 in a second position;

FIG. 12 is a schematic structural view of the inner and outer tubes of the scooter support bar of FIG. 1;

FIG. 13 is a cross-sectional view of the outer tube and locking device of the scooter support rod of FIG. 1;

FIG. 14 is an exploded view of the inner tube of the scooter support rod of FIG. 1;

FIG. 15 is a schematic structural view of the scooter locking device and support bar of FIG. 1;

FIG. 16 is a perspective view of a portion of the structure of the locking device of FIG. 15;

FIG. 17 is an exploded view of a portion of the structure of the locking device of FIG. 15;

FIG. 18 is a perspective view of a wheel structure of the scooter of FIG. 1;

FIG. 19 is a perspective view of a rim of the wheel construction of FIG. 18;

FIG. 20 is another perspective view of a rim of the wheel construction of FIG. 18;

FIG. 21 is a front elevational view of a rim of the wheel construction of FIG. 18;

FIG. 22 is a perspective view of a tire of the wheel construction of FIG. 18;

fig. 23 is a cross-sectional view of the tire of fig. 22.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

As shown in fig. 1 and 2, the scooter of one embodiment of the present application includes a footboard 30, a support bar 40, a left front wheel 11, a right front wheel 12, and a rear wheel 13. The left and right front wheels 11 and 12 are disposed at the front portion 32 of the footboard 30, and the rear wheel 13 is disposed at the rear portion 34 of the footboard 30. The number of front wheels and rear wheels in this embodiment is merely an example.

The left front wheel 11 is connected to a left front wheel shaft 21, the right front wheel 12 is connected to a right front wheel shaft 22, the left front wheel shaft 21 and the right front wheel shaft 22 are connected by a link 23, and the left front wheel shaft 21 and the right front wheel shaft 22 are connected to the bottom of a front portion 32 of the footboard 30, respectively. The left front wheel 11 has a wheel pivot 111, the left front wheel 11 is connected to the left front wheel shaft 21 through the wheel pivot 111, the left front wheel 11 can be rotated with respect to the wheel pivot 111, and a bearing 112 and a bearing 113 are provided at the connection of the left front wheel 11 and the wheel pivot 111 to reduce the rotational friction coefficient. The connection structure of the right front wheel 12 and the right front wheel axle 22 is the same as that of the left front wheel 11, and the description thereof is omitted.

Referring to fig. 2 and 3, the left front wheel axle 21 has a first pivot 211 and a first axis 212, while the left front wheel 11 and the left front wheel axle 21 can be steered with respect to the first pivot 211 and the first axis 212. The first axis 212 is inclined toward the front direction of the footboard 30 such that it forms a predetermined adjacent angle 214 with an upward axis 213 perpendicular to the footboard 30. The adjacent angle 214 is greater than 0 degrees and less than 90 degrees, preferably the adjacent angle 214 is 43 degrees, but the adjacent angle may be greater or less than the examples given herein. Accordingly, the right front axle 22 has a second pivot 221 and a second axis 222, and the steering structure thereof is the same as that of the left front axle 21, and the adjacent angle formed by the second pivot is the same as that formed by the left front axle 21, which will not be described herein again.

The left front axle 21 may be connected to the bottom of the front portion 32 of the footboard 30 by a first pivot 211, and the right front axle 22 may be connected to the bottom of the front portion 32 of the footboard 30 by a second pivot 221. One end of the connecting rod 23 is connected with the left front wheel shaft 21 in a rotating matching mode, and the other end of the connecting rod 23 is connected with the right front wheel shaft 22 in a rotating matching mode.

Because of the adjacent angle, when a force is applied to the side of the left front wheel axle 21, the left front wheel axle 21 turns to the left, and when the left front wheel axle 21 turns, the right front wheel axle 22 can be driven by the connecting rod 23 to turn to the same side; when a force is applied to the right front wheel axle 22, the right front wheel axle 22 is steered to the right, and when the right front wheel axle 22 is steered, the left front wheel axle 21 is steered to the same side by the link 23. Therefore, when steering occurs, depending on the position of the link 23 connected to the left or right front wheel axle 21 or 22, the link 23 moves left or right at the bottom of the front portion 32 of the footrest 30, and if the left front wheel axle 21 makes a left turn, the link 23 is pushed to steer the right front wheel axle 22, and the link 23 moves right, and if the left front wheel axle 22 makes a left turn, the link 23 is pulled to steer the right front wheel axle 22, and the link 23 moves left.

As shown in fig. 2 and 4, in this embodiment, a biasing device 50 is provided between the left and right front axle 21, 22, the biasing device 50 being positioned to bias the left and right front axle 21, 22 toward a position where the plane of symmetry of the link 23 overlaps with the plane of symmetry of the footrest 30. The biasing device 50 is operable between a released state and a twisted state. When a force is applied to steer the left front axle 21 or the right front axle 22, the biasing means 50 is steered from the released state to the twisted state, and when the applied force is released, the biasing means 50 is returned to the released state. Therefore, when a force is applied to steer the scooter, the link 23 moves left or right causing its plane of symmetry to be separated from the plane of symmetry of the footboard 30, and when the applied force is released, the left and right front wheel shafts 21 and 22 will pivot to a position where the plane of symmetry of the link 23 overlaps the plane of symmetry of the footboard 30, i.e., self-righting is achieved, because of the biasing action of the biasing means 50. The plane of symmetry of the footrest 30 is perpendicular to the connecting rod 23.

As a non-limiting example, the biasing means 50 may be an elastic member having a certain length, one end of which is fitted on the engagement groove 215 on the left front wheel axle 21 and the other end of which is fitted on the engagement groove 216 on the right front wheel axle 22. When the biasing means 50 is in the released state, its length extension direction coincides with the length extension direction of the link 23. The number of elastic members in this embodiment is merely an example. The elastic member may be, for example, an elastic sheet, an elastic strip, or the like made of metal or silicone rubber. Depending on the choice of the form of the biasing means 50, the form of the engagement grooves 215 and 216 may be adapted accordingly and should be understood to be included in the scope of the present application.

With continued reference to fig. 2 and 4, as a non-limiting example, the first outer surface 217 of the left front axle 21 is formed with a first protrusion 218, the bottom of the front portion 32 of the footrest 30 is formed with a first stopper groove 321 corresponding to the first protrusion 218, and the first stopper groove 321 is configured to engage with the first protrusion 218 to limit the steering angle of the left front axle 21 to some extent. It should be understood that the positions of the protrusion and the position-limiting groove can be reversed. The same structure may be provided on the right front wheel axle 22, and will not be described in detail.

As shown in fig. 5, as a non-limiting example, the lower end of the support bar 40 is connected to a support bar shaft 41, and the support bar shaft 41 is connected to the upper portion of the front portion 32 of the footboard 30. The support lever shaft 41 has a third pivot 412 and a third axis 413, while the support lever 40 can be rotated with respect to the third pivot 412 and the third axis 413.

The positioning device is operable between allowing the support bar 40 to be rotated relative to the third axis 413 and preventing the support bar 40 from being rotated relative to the third axis 413. As shown in fig. 5 and 6, the positioning means includes a positioning member 61 provided at a lower end of the support rod 40 and a positioning groove 62 provided at an upper portion of the front portion 32 of the foot board 30, the positioning member 61 being selectively inserted into or withdrawn from the positioning groove 62, the support rod 40 being prevented from rotating relative to the third axis 413 when the positioning member 61 is inserted into the positioning groove 62, and the support rod 40 being allowed to rotate relative to the third axis 413 when the positioning member 61 is withdrawn from the positioning groove 62. It should be understood that the positions of the projections and the recesses may be reversed. The positioning groove 62 may be provided in plural at the upper portion of the front portion 32 of the foot board 30 to allow or prevent the support bar 40 from being rotated in cooperation with the positioning member 61 when the support bar 40 is rotated to the corresponding position.

By way of non-limiting example, the positioning member 61 may slide relative to the support rod 40 so as to selectively extend into or exit from the positioning slot 62. The positioning member 61 has a first circumferential outer surface 611 opposite to the first circumferential inner surface 621 of the positioning groove 62, and the corresponding first circumferential inner surface 621 and first circumferential outer surface 611 can prevent the positioning member 61 and the positioning groove 62 from shaking at the connection position.

In a preferred embodiment, the positioning member 61 can be at least partially received in the supporting rod 40. As shown in fig. 7, the positioning element 61 is provided with a first through hole 63, and the third pivot 412 is disposed through the first through hole 63 and is in clearance fit with the first through hole 63, so that the positioning element 61 is held at the lower end of the supporting rod 40 by the third pivot 412 and the positioning element 61 is allowed to slide by the clearance.

As shown in fig. 8, as a non-limiting example, the first elastic member 80 is configured to constantly elastically push or pull the positioning member 61 toward a position that can be extended into the positioning slot 62. In the embodiment of the present application, the first elastic element 80 may be disposed between the positioning element 61 and the third pivot 412, when the force is applied to slide the positioning element 61 in a direction of exiting the positioning slot 62, the first elastic element 80 is compressed, and when the force is released, the first elastic element 80 pushes the positioning element 61 in a direction of extending into the positioning slot 62. It should be understood that by changing the position of the first elastic member 80, it is achieved that the first elastic member 80 will be stretched when the positioning member 61 is slid in the direction of exiting the positioning groove 62 by applying a force.

As shown in fig. 6, 8 and 9, the sliding member 70 is connected to the positioning member 61, and the sliding member 70 can slide the positioning member 61 to extend or retract the positioning member 61 into or out of the positioning slot 62. In a preferred embodiment, the sliding member 70 may include a sliding sleeve 71 and a fixing member 72, the sliding sleeve 71 is sleeved outside the supporting rod 40, and the fixing member 72 passes through the second through hole 42 formed in the supporting rod 40 to connect the sliding sleeve 71 and the positioning member 61 disposed in the supporting rod 40. The fixing member 72 is loosely fitted to the second through hole 42 to allow the fixing member 72 to be slidable in the first through hole 42. When a force is applied to the sliding sleeve 71, the sliding sleeve 71 will slide the positioning member 61 in the gap of the second through hole 42 via the fixing member 72.

As shown in fig. 5, as a non-limiting example, the upper portion of the front portion 32 of the footboard 30 is formed with a ridge portion 33, the ridge portion 33 is formed with a first opening groove 331, and an opening of the first opening groove 331 may extend from a position at a top surface of the ridge portion 33 to a position at a side surface of the ridge portion 33 facing the footboard 30, such that the first opening groove 331 is substantially fan-shaped. The third pivot 412 is disposed in the first open groove 331 at a position perpendicular to the foot board 30 so that the support bar 40 can be rotated between a first position (shown in fig. 10) with respect to the top position of the opening of the first open groove 331 to a second position (shown in fig. 11) at the side position of the opening of the first open groove 331.

As shown in fig. 5 and 9, by way of non-limiting example, the support rod shaft 41 has a third outer surface 414 opposite the second outer surface 332 of the bottom of the first open slot 331, the respective second and third outer surfaces 332, 414 being such that the support rod shaft 41 can be partially received in the first open slot 331 and the third outer surface 414 can be rotated in the first open slot 331 relative to the third pivot 412 and the third axis 413.

As shown in fig. 5, 10 and 11, the positioning groove 62 includes a first positioning groove 622 and a second positioning groove 623 which are disposed on the second outer surface 332 of the bottom of the first open groove 331, wherein the first positioning groove 622 is disposed with respect to the first position of the supporting rod 40 to cooperate with the positioning member 61 to allow or prevent the supporting rod 40 from being rotated when the supporting rod 40 is located at the first position, and the second positioning groove 623 is disposed with respect to the second position of the supporting rod 40 to cooperate with the positioning member 61 to allow or prevent the supporting rod 40 from being rotated when the supporting rod 40 is located at the second position. Preferably, the opening of the first positioning groove 622 is disposed vertically upward, and the opening of the second positioning groove 623 is disposed horizontally toward the direction of the pedal plate 30, so that the support rod 40 can be positioned in a vertical state (i.e., a first position) for holding when driving and a folded state (i.e., a second position) for easy storage, respectively.

When the supporting rod 40 is located at the first position as shown in fig. 10 and the positioning member 61 extends into the first positioning groove 622, the supporting rod 40 cannot be rotated; at this time, a force may be applied to withdraw the positioning member 61 from the first positioning groove 622, and simultaneously a force may be applied to the supporting rod 40 to rotate the supporting rod 40 relative to the third pivot 412 and the third axis 413; when the supporting rod 40 is rotated to the second position as shown in fig. 11, the positioning member 61 extends into the second positioning groove 623, and the supporting rod 40 cannot be rotated, so that the supporting rod 40 can be maintained at the second position. The rotation of the support lever 40 from the second position to the first position is the same as the rotation from the first position to the second position, except for the reverse order.

As shown in fig. 12, as a non-limiting example, the support rod 40 includes an outer tube 43 and an inner tube 44, the outer tube 43 is connected at a lower end thereof to the support shaft 41, the inner tube 44 is disposed inside the outer tube 43 and is slidable with respect to the outer tube 43, and the length of the support rod 40 can be adjusted by the sliding fit of the inner tube 44 and the outer tube 43.

The locking means is operable between allowing the inner tube 44 to slide relative to the outer tube 43 and preventing the inner tube 44 from sliding relative to the outer tube 43. In one embodiment, as shown in fig. 12 and 13, the locking device includes a latch hole 45 disposed on the inner tube 43 and a latch 46 disposed on the outer tube 44, the latch 46 can selectively extend into or withdraw from the latch hole 45, when the latch 46 extends into the latch hole 45, the inner tube 44 is prevented from sliding relative to the outer tube 43, and when the latch 46 withdraws from the latch hole 45, the inner tube 44 is allowed to slide relative to the outer tube 43. The engaging holes 45 may be provided in plural along the inner tube 44, and the plural engaging holes 45 respectively engage with the engaging pieces 46 when the inner tube 44 is slid to the corresponding position to allow or prevent the inner tube 44 from sliding with respect to the outer tube 43, thereby allowing the support rod 40 to have plural lengths locked. The number of the engaging holes 45 is preferably 30 to 60, and most preferably 45 to 55, and the distance between the center lines of every two adjacent engaging holes 45 in the vertical direction is preferably 3mm to 6mm, and most preferably 4mm to 5 mm. The support rod 40 can be adjusted to have a length stepless adjustment function by setting the number of the engaging holes 45.

As shown in fig. 14, a band 441 is attached to the inner tube 44, the extension direction of the band 441 coincides with the longitudinal extension direction of the inner tube 44, and the engagement hole 45 is positioned on the band 441. Band 441 is removably attached to inner tube 44. The inner pipe 44 may be formed with a mounting groove 442, and the band 441 is mounted in the mounting groove 442, and the mounting groove 442 extends in the same direction as the inner pipe 44.

The unlocking member is connected to the engaging member 46, and the unlocking member can drive the engaging member 46 to move, so that the engaging member 46 can extend into or withdraw from the engaging hole 45. As shown in fig. 13, 15 and 16, in a preferred embodiment, the unlocking member may include a key 91 and a connecting sleeve 92, the connecting sleeve 92 is sleeved on the outer tube 43 and is in clearance fit with the outer tube 43 to allow the connecting sleeve 92 to move transversely on the periphery of the outer tube 43, and the key 91 is connected with the engaging member 46 through the connecting sleeve 92. When a force is applied to the button 91, the button 91 drives the engaging member 46 to move through the connecting sleeve 92. The engaging piece 46 may be provided on the side opposite to the key 91, and when the key 91 is pressed to be close to the outer tube 43, the engaging piece 46 moves away from the outer tube 43 to exit the engaging hole 45. The unlocking member can be fixed at the upper end of the outer tube 43 through the mounting seat 93, the mounting seat 93 is provided with a key hole, the key 91 is exposed out of the mounting seat 93 through the key hole, and the connecting sleeve 92 is positioned in the mounting seat 93 and can transversely move in the mounting seat 93.

As shown in fig. 13, as a non-limiting example, the second elastic member 100 is configured to constantly elastically push or pull the click member 46 toward a position where it can be inserted into the click hole 45. In the embodiment of the present application, the second elastic element 100 can be disposed between the engaging element 46 and the mounting seat 93, when a force is applied to make the engaging element 46 exit from the engaging hole 45, the engaging element 46 will approach the mounting seat 93, and at this time, the second elastic element 100 is compressed, and when the applied force is released, the second elastic element 100 pushes the engaging element 46 toward the direction of extending into the engaging hole 45. It should be understood that by changing the disposed position of the second elastic member 100, it can be achieved that the second elastic member 100 will be stretched when a force is applied to withdraw the engaging member 46 out of the engaging hole 45.

As shown in fig. 13, 15 and 17, in another embodiment, the locking means includes a pressing piece 47 provided at the upper end of the outer tube 43 and an elastic sleeve 48 provided on the inner tube 44, the elastic sleeve 48 selectively presses or releases the pressing piece 47 against the outer wall of the inner tube 44, the inner tube 44 is prevented from sliding relative to the outer tube 43 when the pressing piece 47 is pressed against the outer wall of the inner tube 44 by the elastic sleeve 48, and the inner tube 44 is allowed to slide relative to the outer tube 43 when the pressing piece 47 is released from the outer wall of the inner tube 44 by the elastic sleeve 48.

The compressing plate 47 can be fixed at the upper end of the outer pipe 43 through the mounting seat 93, the mounting seat 93 is provided with an external thread, and the elastic sleeve 48 is provided with an internal thread matched with the external thread, so that when the compressing plate 47 is compressed with the inner pipe 44, the elastic sleeve 48 and the mounting seat 93 are fixed together in a threaded manner, and the compressing plate 47 is prevented from being loosened.

When the length of the supporting rod 40 needs to be adjusted, the elastic sleeve 48 can be firstly loosened to loosen the pressing piece 47 from the outer wall of the inner tube 44, and then a force is applied to the key 91 to make the engaging piece 46 exit from the engaging hole 45, at this time, the inner tube 44 and the outer appearance 43 can slide to adjust the length of the supporting rod 40; when the length of the support rod is adjusted to be proper, the force applied to the key 91 is released, the clamping piece 46 extends into the clamping hole 45, and then the elastic sleeve 48 is fixed with the mounting seat 93 in a threaded manner, so that the key 91 is prevented from being touched by mistake, and the length of the support rod 40 is changed accidentally.

Referring to fig. 18, at least one of the front left wheel 11, the front right wheel 12, and the rear wheel 13 may have a wheel structure 200 that includes a wheel hub 210 and a tire 220. As shown in fig. 19, 20 and 21, hub 210 has a rim 213 that contacts a tire 220. The rim 213 includes a second circumferential outer surface 214, and a first side surface 215 and a second side surface 216 on both sides of the second circumferential outer surface 214, the second circumferential outer surface 214 is formed with at least one second open groove 217, the second open groove 217 extends on the second circumferential outer surface 214 to penetrate the first side surface 215 and the second side surface 216 in a length direction, and a width dimension gradually decreases from a groove bottom of the second open groove 217 to an opening width of the second open groove 217 in a width direction, wherein the length and width directions are perpendicular to each other. The scooter tire is usually a soft product formed by injection molding and does not need to be inflated, the soft tire can be sunken to a certain extent at the open groove of the rim during the driving process, the tire is out of round, and vibration feeling of a certain extent is generated.

By way of non-limiting example, the second circumferential outer surface 214 may have a plurality of second open grooves 217 formed therein. A plurality of second open slots 217 may be equally spaced along the second circumferential outer surface 214. For example, in fig. 21, three second open grooves 217 are provided, the three second open grooves 217 being equally spaced along the second circumferential outer surface 214.

As a non-limiting example, the second opening groove 217 may be provided therein with a light emitting portion 218, the tire 220 has a light transmitting portion corresponding to the light emitting portion 218, the light emitted from the light emitting portion 218 may be transmitted through the light transmitting portion, the light transmitting portion may be provided at a partial position of the tire 220 according to the position where the light emitting portion 218 is provided, or the tire 220 may be entirely provided with the light transmitting portion. The light emitting portion 218 may be a lamp, for example.

By way of non-limiting example, the hub 210 is an injection molded hard rubber product, and to prevent the rubber from becoming too thick and shrinking, the rim 213 is provided with a plurality of through holes 219 penetrating the first side surface 215 and the second side surface 216, for example, twelve through holes 219 are provided in fig. 21.

As shown in fig. 22 and 23, as a non-limiting example, the tire 220 is a soft rubber article formed by injection molding, and in order to prevent shrinkage due to too thick rubber, the tire 220 has the following structure. The tyre 220 comprises a third circumferential outer surface 221 capable of contacting with the ground and a fourth circumferential outer surface 222 contacting with the rim 213, an annular glue drawing groove 223 is arranged between the third circumferential outer surface 221 and the fourth circumferential outer surface 222, and a plurality of glue drawing channels 224 communicating the annular glue drawing groove 223 with the external environment are arranged on the fourth circumferential outer surface 222. A plurality of glue channels 224 are equally spaced along the fourth circumferential outer surface 222.

The support bar 40 is held by the user as a handle for better balance, rather than for stiffening the scooter. Thus, the scooter may be operated with or without a support bar.

The embodiments described in this specification and the disclosure therein are provided by way of illustration only. The present application is equally applicable to other types of scooters.

While the present application has been described in detail with reference to the disclosed embodiments, various modifications within the scope of the present application will be apparent to those of ordinary skill in the art. It should be understood that features described with respect to one embodiment may generally be applied to other embodiments.

Claims (10)

1. A wheel structure, comprising: a hub having a rim including a second circumferential outer surface and first and second sides on the second circumferential outer surface; a tire disposed on said hub and in contact with at least said second circumferential outer surface; wherein the second circumferential outer surface is formed with at least one second open groove, the second open groove penetrates the first side surface and the second side surface in the length direction, and the width dimension of the second open groove is gradually reduced from the groove bottom to the opening.

2. The wheel construction of claim 1 wherein said second circumferential outer surface has a plurality of said second open grooves formed therein, said plurality of said second open grooves being equally spaced along said second circumferential outer surface.

3. The wheel structure according to claim 1, further comprising a light-emitting portion provided in the second open groove, the tire having a light-transmitting portion corresponding to the light-emitting portion through which light emitted by the light-emitting portion is transmitted.

4. The wheel construction of claim 1 wherein the rim defines a plurality of through holes extending through the first side surface and the second side surface.

5. A wheel construction according to any one of claims 1 to 4 characterised in that the tyre is an injection moulded soft rubber article.

6. A wheel construction according to claim 5 characterised in that said tyre comprises a third circumferential outer surface contactable with the ground and a fourth circumferential outer surface contactable with said second circumferential outer surface, said third circumferential outer surface and said fourth circumferential outer surface having an annular undercut between them, said fourth circumferential outer surface having a plurality of undercut channels communicating between said annular undercut and the external environment.

7. The wheel construction of claim 6 wherein a plurality of said plurality of skim channels are equally spaced along said fourth circumferential outer surface.

8. A wheel structure, comprising: a hub having a rim, the rim including a second circumferential outer surface; a tire disposed on the hub and in contact with the second circumferential outer surface; the tire is a soft rubber product formed by injection molding, and comprises a third circumferential outer surface capable of being in contact with the ground and a fourth circumferential outer surface in contact with the second circumferential outer surface, wherein an annular glue drawing groove is formed between the third circumferential outer surface and the fourth circumferential outer surface, and a plurality of glue drawing channels communicated with the annular glue drawing groove and the external environment are formed in the fourth circumferential outer surface.

9. The wheel construction of claim 8 wherein the hub is an injection molded hard rubber article.

10. A scooter comprising left, right and rear front wheels having a wheel structure as claimed in any one of claims 1 to 9.

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