CN218577949U

CN218577949U - Scooter

Info

Publication number: CN218577949U
Application number: CN202121868599.2U
Authority: CN
Inventors: 汪须忠
Original assignee: Shenzhen Liyijiujiu Network Technology Co Ltd
Current assignee: Shenzhen Liyijiujiu Network Technology Co Ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2023-03-07
Anticipated expiration: 2031-08-10

Abstract

The present application relates to a scooter comprising a footrest having a front portion and a rear portion, the rear portion having a rear wheel connected thereto; a front axle rotatable relative to a steering axis, the front axle having a plurality of front wheels connected thereto; a steering member including a first portion connected to the front portion and a second portion connected to the front wheel shaft, the second portion being connected to the front wheel shaft as an extension of the front wheel shaft in a direction perpendicular to the steering axis.

Description

Scooter

Technical Field

The present application relates to the field of sports vehicles, and more particularly, to a 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 front part of the pedal of the existing scooter is provided with a front wheel shaft and a steering component for steering, the steering component is usually arranged between the bottom of the pedal and the front wheel shaft and is connected according to the sequence of the bottom of the pedal, the steering component and the front wheel shaft from top to bottom, so that the thickness of the front part of the pedal is roughly limited by the pedal, the steering component and the front wheel shaft together, the front part of the pedal of the existing scooter is thick and heavy, and the pedal is not beneficial to the operation of a user with less strength.

SUMMERY OF THE UTILITY MODEL

In view of this, there is a need to provide a scooter that addresses the above mentioned drawbacks of the background art.

In one aspect, there is provided a scooter comprising: a footrest having a front portion and a rear portion, the rear portion having a rear wheel connected thereto; a front axle rotatable relative to a steering axis, the front axle having a plurality of front wheels connected thereto; a steering member including a first portion connected to the front portion and a second portion connected to the front axle, the second portion being connected to the front axle in a direction perpendicular to the steering axis as an extension of the front axle.

In the scooter of the above embodiment, the second portion of the steering member is connected to the front wheel shaft as an extension of the front wheel shaft in a direction perpendicular to the steering axis, so that the second portion and the front wheel shaft are prevented from being overlapped in thickness in the direction along the steering axis, and thus the thickness defined by both the steering member and the front wheel shaft can be reduced, and the thickness of the front part of the pedal plate of the scooter is reduced to a certain extent.

In one embodiment, the second portion is a cylinder, a through hole is formed between the top surface and the bottom surface of the second portion along the steering axis, a pivot shaft is arranged in the through hole in a penetrating mode, and the front wheel shaft can rotate relative to the pivot shaft and the steering axis.

In one embodiment, the end of the first portion is formed with a recess for receiving the second portion.

In one embodiment, the recess comprises a top wall, a first side wall and a bottom wall, the bottom wall connecting the top wall and the bottom wall so as to define a substantially C-shaped opening at which the second portion slides into the recess in a direction perpendicular to the steering axis.

In one embodiment, the first portion opens in a direction perpendicular to the steering axis with a first cavity, the second portion opens in a direction perpendicular to the steering axis with a second cavity, the first and second cavities interfacing for receiving a biasing means, wherein the biasing means is positioned to bias the front axle towards a position where the front axle is perpendicular to the footboard.

In another aspect, there is provided a scooter comprising: a footrest having a front portion and a rear portion, the rear portion having a rear wheel connected thereto; a front axle rotatable relative to a steering axis, the front axle having a plurality of front wheels connected thereto; a steering member including a first portion connected to the front portion and a second portion connected to the front axle, an end of the first portion being formed with a notch for receiving the second portion.

In the scooter of the above embodiment, since the first portion itself has a certain thickness, otherwise the strength requirement of the scooter cannot be met, the first portion is provided with the notch, and the second portion is accommodated in the notch, so that the first portion and the second portion can be prevented from being overlapped in the direction along the steering axis.

In one embodiment, the recess comprises a top wall, a first side wall and a bottom wall, the bottom wall connecting the top wall and the bottom wall so as to define a substantially C-shaped opening at which the second portion slides into the recess in a direction perpendicular to the steering axis. In this embodiment, the bottom wall of the recess may serve to protect the front axle and the steering member from wear due to impact and friction from the ground or obstacles during use, extending the useful life of the scooter.

In one embodiment, the front axle has a second side wall corresponding to the first side wall, and the first side wall and the second side wall cooperate to limit the steering angle of the front axle to a certain extent.

In yet another aspect, there is provided a scooter comprising: a footrest having a front portion and a rear portion, the rear portion having a rear wheel connected thereto; a front axle rotatable relative to a steering axis, the front axle having a plurality of front wheels connected thereto; a steering member comprising a first portion connected to the front portion and a second portion connected to the front axle, the first portion opening a first cavity in a direction perpendicular to the steering axis and the second portion opening a second cavity in a direction perpendicular to the steering axis, the first and second cavities interfacing for receiving a biasing means, wherein the biasing means is positioned to bias the front axle towards a position where the front axle is perpendicular to the footrest.

According to the scooter of the embodiment, the thickness of the first part along the steering axis can not be increased by arranging the first cavity along the direction perpendicular to the steering axis, the thickness of the second part along the steering axis can not be increased by arranging the second cavity along the direction perpendicular to the steering axis, and the first cavity and the second cavity are arranged in a butt joint along the direction perpendicular to the steering axis, so that the first part and the second part are prevented from being overlapped in the direction along the steering axis.

In one embodiment, the biasing means is operable between a released state, from which it is twisted into a twisted state when a force is applied to the steering member to steer the front wheel axle, and a twisted state, from which it returns to the released state when the force applied to the steering member is released.

In one embodiment, the biasing device is a torsion spring, the first cavity receives ends of two torsion arms of the torsion spring, and the second cavity receives a coil portion of the torsion spring.

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 required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

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

FIG. 2 is a cross-sectional view of a forward portion of a footrest of the scooter of FIG. 1;

FIG. 3 is a perspective view of a front axle portion of the scooter of FIG. 1;

FIG. 4 is another angled perspective view of the front axle portion of FIG. 3;

FIG. 5 is a perspective view of a footboard portion of the scooter of FIG. 1;

fig. 6 is a perspective view of a biasing device of the scooter of fig. 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying figures are described in detail below. 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 to 5, the scooter of one embodiment of the present application includes a footboard 30, a support bar 40, two front wheels 10 and a rear wheel 11. Front wheel 10 and rear wheel 11 are connected to front portion 32 and rear portion 34 of footboard 30, respectively. The number of front wheels and rear wheels in this embodiment is merely an example.

The front wheel 10 is connected to a front wheel axle 50. The front wheel axle 50 has a pivot 51 and a steering axis 56, while the front wheels 10 and the front wheel axle 50 can be steered with respect to the pivot 51 and the steering axis 56. The steering axis 56 is inclined toward the front of the footboard 30 such that it forms a predetermined adjacent angle 53 with an upward axis 55 perpendicular to the footboard 30. The adjacent angle 53 is greater than 0 degrees and less than 90 degrees, preferably the adjacent angle 53 is 25 degrees, but the adjacent angle may be greater or less than the examples given herein.

One end of the steering member is disposed on the front axle 50 along a steering axis 56 for steering the front axle 50 to one side of the steering member when a force is applied to the same side. The other end of the steering member is connected to the bottom of the front portion 32 of the footboard 30. In this embodiment, the steering member includes a first portion 62 attached to the bottom of the front portion 32 of the footrest 30, and a second portion 64 attached to the front axle 50, the first portion 62 and the second portion 64 being relatively rotatable about the steering axis 56.

When the scooter is in a straight-ahead condition, the weight of the user is evenly distributed over the two front wheels 10 and the balance of forces prevents the front wheel axle 50 from rotating about the pivot 51 and steering axis 56 so that the scooter will travel straight. When the user leans the scooter to the left or transfers a portion of his weight to the left, such force will be transferred from the scooter 30 and the steering member to the front axle 50 and, through the front axle 50, to the left front wheel 10, which will be subjected to an upward reaction force F against it by the ground, which reaction force F acts in a direction opposite to the force from the steering member, as shown in fig. 2. Since the steering axis 56 of the front axle 50 is inclined at a predetermined adjacent angle 53 relative to the upward axis 55, the reaction force F acting on the left front wheel 10 can be resolved into Fx and Fz as described in fig. 2, which force Fx will cause a rotational movement of the front axle 50 at the pivot 51 relative to the steering axis 56 due to the connection of the left front wheel 10 with the front axle 50. Rotation of the front axle 50 will also turn the front wheel 10 to the same side.

As an example, in this embodiment, the second portion 64 is connected at the front axle 50 as an extension of the front axle 50, but the second portion 64 may be fixed to the front axle 50 by other means. The steering member must be fixed to the front axle 50 so that when a force is exerted on the steering member, the force can be transmitted to steer the front axle 50. Preferably, the second portion 64 extends in a direction perpendicular to the steering axis 56, so that the second portion 64 and the front axle 50 are prevented from overlapping in thickness in the direction along the steering axis 56.

By way of non-limiting example, the second portion 64 may be a cylinder having a top surface and a bottom surface with a through hole 69 defined therebetween along the steering axis 56, and the pivot shaft 51 is disposed through the through hole 69 such that the second portion 64 is rotatable about the pivot shaft 51.

As an example, in this embodiment, the end of the first portion 62 of the steering member is formed with a notch 67 for receiving the second portion 64, and since the first portion 62 itself has a thickness that would otherwise not meet the strength requirements of the scooter, the notch 67 is provided in the first portion 62 and the second portion 64 is received in the notch 67, thereby avoiding the first portion 62 and the second portion 64 from overlapping in thickness in a direction along the steering axis 56.

By way of non-limiting example, the recess 67 includes a top wall 671, a first side wall 672, and a bottom wall 673, the side wall 672 connecting the top wall 671 and the bottom wall 672 thereby defining a generally C-shaped opening at which the second portion 64 is slidable into the recess 67 in a direction perpendicular to the steering axis 56 and is rotatably connected to the first portion 62 by the pivot 51. The bottom wall 673 may function to protect the front axle 50 and the steering member from impact and friction from the ground or obstacles during use, thereby prolonging the life of the scooter. Meanwhile, the bottom wall 673 is formed integrally with the first portion 62 as a part of the recess 67 to prevent accidental falling during use.

As an example, in this embodiment, the front axle 50 has a second sidewall 502 corresponding to the first sidewall 672, and the first sidewall 672 cooperates with the second sidewall 502 to limit the steering angle of the front axle 50 to some extent. As a non-limiting example, the first side wall 672 and the second side wall 502 are spaced apart, and when the front axle 50 rotates to one side about the steering axis 56 until the first side wall 672 of that side abuts the corresponding second side wall, the front axle 50 is restricted from further rotation.

As shown in fig. 2, in this embodiment, a biasing device 70 is disposed between the first portion 62 and the second portion 64, which is positioned to bias the front axle 50 toward a position where the front axle 50 is perpendicular to the footrest 30. The biasing device 70 is operable between a released state and a twisted state. When a force is applied to the steering member to steer the front axle 50, the biasing means 70 is turned from the released state to the twisted state, and when the force applied to the steering member to steer the front axle 50 is released, the biasing means 70 is returned to the released state. In this manner, the steering auto-centering function of the front axle 50 can be achieved using the biasing device 70.

By way of non-limiting example, the biasing device 70 may be a torsion spring (as shown in FIG. 6). In this embodiment, the first and

second portions

62, 64 of the steering member have first and

second cavities

63, 65, respectively, for receiving the biasing means 70, the first cavity 63 receiving the ends of the two torsion arms 72 of the torsion spring, the second cavity 65 receiving the coil portion 74 of the torsion spring, the first and

second portions

62, 64 having first and second

inner walls

621, 641, respectively, corresponding to the torsion arms 72 of the torsion spring. When the front axle 50 rotates, the torsion spring is twisted by the first inner wall 621, the second inner wall 641 and the torsion arm 72 on the same side. The coil portion 74 of the torsion spring may be fitted over the pivot shaft 51. The number of torsion springs in this embodiment is merely an example.

The biasing means 70 may be in other forms such as a hexagonal cylindrical resilient member made of silicone rubber, or a resilient sheet made of metal, or other forms of torsion springs, etc. The biasing device 70 may be connected to the steering member in other ways. The form of the cavity of the first and

second portions

62, 64 for receiving the biasing device 70 may be adapted accordingly, as selected by the form of the biasing device 70, and should be understood to be within the scope of the present application.

Preferably, the first cavity 63 is formed in the first portion 62 in a direction perpendicular to the steering axis 56, and correspondingly, the second cavity 65 is formed in the second portion 64 in a direction perpendicular to the steering axis 56, the first cavity 63 and the second cavity 65 being in open abutment for receiving the biasing means 70. Opening the first cavity 63 in a direction perpendicular to the steering axis 56 may not increase the thickness of the first portion 62 along the steering axis 56, opening the second cavity 65 in a direction perpendicular to the steering axis 56 may not increase the thickness of the second portion 64 along the steering axis 56, and positioning the first cavity 63 and the second cavity 65 in abutment in a direction perpendicular to the steering axis 56 to avoid the first portion 62 and the second portion 64 from overlapping in thickness along the steering axis 56.

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 or may not have a support bar 40.

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

1. A scooter, comprising: a footrest having a front portion and a rear portion, the rear portion having a rear wheel connected thereto; a front axle rotatable relative to a steering axis, the front axle having a plurality of front wheels connected thereto; a steering member comprising a first portion connected to the front portion and a second portion connected to the front wheel shaft, the first portion and the second portion being rotatable relative to the steering axis, the second portion being connected to the front wheel shaft as an extension of the front wheel shaft in a direction perpendicular to the steering axis.

2. A scooter as claimed in claim 1, wherein a through hole is provided between the top and bottom surfaces of the second portion along the steering axis, the through hole being provided with a pivot for connecting the first and second portions, the first and second portions being rotatable relative to the pivot and the steering axis, the front axle being rotatable relative to the pivot and the steering axis.

3. A scooter according to claim 1 or 2, wherein the second portion is a cylindrical body.

4. A scooter, comprising: a footrest having a front portion and a rear portion, the rear portion having a rear wheel connected thereto; a front axle rotatable relative to a steering axis, the front axle having a plurality of front wheels connected thereto; a steering member including a first portion connected to the front portion and a second portion connected to the front axle, the first and second portions being rotatable relative to the steering axis, an end of the first portion being formed with a recess for receiving the second portion.

5. A scooter as claimed in claim 4, wherein the recess comprises a top wall, a first side wall and a bottom wall, the first side wall joining the top and bottom walls to define a generally C-shaped opening at which the second portion slides into the recess in a direction perpendicular to the steering axis.

6. A scooter as claimed in claim 5, wherein the front axle has a second side wall corresponding to the first side wall, the first and second side walls cooperating to limit the steering angle of the front axle to some extent.

7. A scooter according to claim 5 wherein the bottom wall is integrally formed in the first part.

8. A scooter, comprising: a footrest having a front portion and a rear portion, the rear portion having a rear wheel connected thereto; a front axle rotatable relative to a steering axis, the front axle having a plurality of front wheels connected thereto; a steering member comprising a first portion connected to the front portion and a second portion connected to the front axle, the first portion and the second portion being rotatable relative to the steering axis, the first portion opening a first cavity in a direction perpendicular to the steering axis, the second portion opening a second cavity in a direction perpendicular to the steering axis, the first and second cavities interfacing for receiving a biasing means, wherein the biasing means is positioned to bias the front axle towards a position where the front axle is perpendicular to the foot board.

9. A scooter as claimed in claim 8, wherein the biasing means is operable between a released condition and a twisted condition, the biasing means being twisted from the released condition to the twisted condition when a force is applied to the steering member to steer the front wheel shaft, the biasing means returning to the released condition when the force applied to the steering member is released.

10. A scooter according to claim 9 wherein the biasing means is a torsion spring, the first cavity receiving the ends of two torsion arms of the torsion spring, the second cavity receiving the coiled portion of the torsion spring, the first and second portions having respective first and second inner walls corresponding to the torsion arms, the first and second inner walls and torsion arms on the same side causing the torsion spring to twist from a relaxed condition to a twisted condition as the front axle rotates.

11. A scooter as claimed in claim 10, wherein the second portion has a through bore extending along the steering axis between the top and bottom surfaces thereof, the through bore having a pivot extending therethrough for connecting the first and second portions, the first and second portions being rotatable relative to the pivot and the steering axis, the coil portion being mounted on the pivot.