WO2022200888A1

WO2022200888A1 - A mechanism for mounting a rear wheel on the body of a two-wheeled electric vehicle

Info

Publication number: WO2022200888A1
Application number: PCT/IB2022/051976
Authority: WO
Inventors: Sachin Anant Jadhav
Original assignee: Sachin Anant Jadhav
Priority date: 2021-03-22
Filing date: 2022-03-07
Publication date: 2022-09-29

Abstract

The present disclosure relates to wheel mounting mechanisms of two-wheeled vehicles. The present disclosure discloses a mechanism (100) for mounting a rear wheel (15) on the body of a two-wheeled electric vehicle. The wheel is attached to an axle having stubs (16). The mechanism (100) comprises a pair of swing arms (8) configured to be attached to the vehicle frame. Each swing arm (8) has a recessed slot (81) and a through-hole configured on an operative rear end of the swing arm (8). The recessed slot (81) is configured to slidably receive a stub (16) therein to allow the rear wheel (15) to be nested between the swing arms (8). The mechanism (100) further comprises fastening means (17) for guiding and securing the axle to the swing arms (8), and arresting means (20) for arresting the displacement of the stubs (16) in the operative horizontal direction.

Description

A MECHANISM FOR MOUNTING A REAR WHEEL ON THE BODY OF A TWOWHEELED ELECTRIC VEHICLE

FIELD

The present disclosure relates to the field of mechanisms for removing rear wheels of two- wheeled electric vehicles.

BACKGROUND

The background information herein below relates to the present disclosure but is not necessarily prior art.

Typically, the rear wheel of a two-wheeled electric vehicle includes a swing arm assembly which includes a pair of arms for nesting the rear wheel therebetween. Often the swing arms include holes made at the rear halves of the rear swing arm. While mounting the rear wheel with the body of the vehicle, it is necessary that the swing arms are detached from the vehicle frame. The wheel is first installed, and thereafter the swing arms are mounted on the vehicle frame such that the stubs of the wheel axle are received in the holes. Lug nuts are then fastened over the stubs. In case of a two-wheeled electric vehicle, special care must be taken while installing the wheel, since the stator of a hub motor is mounted on the axle of the wheel.

However, at least two people are needed for mounting and removing the rear wheel, especially, during serviceability or maintenance since, a lot of components need to be removed first before mounting or removing the rear wheel and the wheel needs to picked and then inserted. Yet, it has been observed that the mounting and removal of the wheel is a complicated and time consuming process.

Therefore, there is felt a need of a mechanism, for removing the rear wheel, that alleviates the aforementioned drawbacks.

OBJECTS

Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows: It is an object of the present disclosure to ameliorate one or more problems of the prior art or to at least provide a useful alternative.

An object of the present disclosure is to provide a mechanism for mounting a rear wheel on the body of a two- wheeled electric vehicle.

Another object of the present disclosure is to provide a mechanism for mounting a rear wheel on the body of a two-wheeled electric vehicle that simplifies the process of mounting or dismounting of the rear wheel.

Still another object of the present disclosure is to provide a mechanism for mounting a rear wheel on the body of a two-wheeled electric vehicle that enables mounting and removal of the rear wheel in relatively lesser time.

Other objects and advantages of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying figures, which are not intended to limit the scope of the present disclosure.

SUMMARY

The present disclosure provides a mechanism for mounting a rear wheel on the body of a two-wheeled vehicle. The wheel is defined by a rim, a tire mounted on the rim, a hub having a hub motor, an axle on which the stator of the hub motor is mounted, and a sprocket configured to be secured to the hub connected and drivable by a pedal sprocket by means of a drive chain. The axle is defined by a body having stubs provided on either operative ends thereof.

The mechanism comprises a swing arm assembly defined by a pair of swing arms configured to be attached to the vehicle frame. Each swing arm has a recessed slot configured on an operative rear end of the swing arm in an operative horizontal direction (X-X’) and a through-hole configured on an operative rear end of the swing arm in an operative vertical direction (Y-Y’).The recessed slot is configured to slidably receive a stub therein to allow the rear wheel to be nested between the swing arms.

The mechanism further comprises fastening means and arresting means. The fastening means is configured to receive the stubs, roll and guide the rear wheel from the operative rear end of the swing arm into the recessed slots, and to secure the axle to the swing arms. The arresting means is configured to be securely received in the through-holes. The arresting means is configured to arrest the displacement of the stubs in the operative horizontal direction.

In an embodiment, each fastening means is provided with internal threads for facilitating threadable attachment of the axle in the swing arm.

In an embodiment, the fastening means is a lug nut.

In another embodiment, the arresting means is a kingpin configured to be threadably secured in the through-hole.

The present disclosure further provides a method for mounting a rear wheel on the body of a two-wheeled vehicle.

The wheel is defined by a rim, a tire mounted on the rim, a hub having a hub motor, an axle on which the stator of the hub motor is mounted, and a sprocket configured to be secured to the hub connected and drivable by a pedal sprocket by means of a drive chain. The axle is defined by a body having stubs provided on either operative ends thereof.

The method comprises the following steps:

• slidably receiving the stubs in recessed slots configured, in an operative horizontal direction (X-X’), on operative rear ends of each swing arm of a pair of swing arms attached to the vehicle frame;

• receiving the stubs in a fastening means for rolling and guiding the rear wheel from the operative rear end of the swing arm into the recessed slots, and securing the axle to the swing arms; and

• receiving arresting means in through-holes configured, in an operative vertical direction (Y-Y’), on operative rear ends of the swing arms for arresting the displacement of the operative ends of the stubs in the operative horizontal direction.

The present disclosure further provides a vehicle having a mechanism for mounting a rear wheel thereon.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING A mechanism, of the present disclosure, for mounting a rear wheel on the body of a two wheeled electric vehicle will now be described with the help of the accompanying drawing, in which:

Figure 1 illustrates a front view of a two-wheeled electric vehicle with the mechanism, in accordance with an embodiment of the present disclosure;

Figure 2 illustrates a rear view of the two-wheeled electric vehicle of Figure 1;

Figure 3 illustrates a right hand side view of the rear wheel with the mechanism of Figure 1;

Figure 4 illustrates a left hand side view of the rear wheel with the mechanism of Figure 1;

Figure 5 illustrates a top view of the rear portion of the two-wheeled electric vehicle of Figure 1;

Figure 6 illustrates a bottom view of the rear wheel with the mechanism of Figure 1;

Figure 7 illustrates a right hand bottom isometric view of the rear wheel with the mechanism along with swing arm, motor and chain adjuster assembly of the electric two wheeler of

Figure 1; Figure 8 illustrates a right hand top isometric view of the rear wheel with the mechanism, chain adjuster assembly and swing arm of the electric two wheeler of Figure 1;

Figure 9 illustrates a left hand bottom isometric view of the rear wheel with the mechanism along with swing arm, motor chain adjuster assembly of the electric two wheeler of Figure 1; and Figure 10 illustrates a left hand top isometric view of the rear wheel with the mechanism, chain adjuster assembly and swing arm of the electric two wheeler of Figure 1.

LIST OF REFERENCE NUMERALS

100 - mechanism 1 - Rear mud guard assembly 2 - Rear mudguard support pipe 3 - Pivot assembly

4 - Pivot brackets

5 - First pivot stopper rod

6 - Second pivot stopper rod 7 - Pivot bolts

8 - Swing arm

81 - recessed slot

9 - Main stand

10 - Drive chain 11 - Chain connecting spring clip

12 - Chain connecting link

13 - Mud guard mount bracket

14 - Mud guard mount bolt

15 - Rear wheel 16 - stub of axle

17 - fastening means

18 - Rear brace caliper assembly

19 - Chain adjuster assembly

20 - Arresting means 21 - Washer

22 - Nut 24 - Power and sensor connectors

151 - Rim 152 - Tire 155 - Sprocket DETAILED DESCRIPTION

Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.

Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details, are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail. The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms "comprises," "comprising," “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, operations, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, operations, elements, components, and/or groups thereof.

When an element is referred to as being "connected to," or "coupled to" another element, it may be connected or coupled to the other element. The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region, layer or section from another component, region, layer or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure. A mechanism (100), of the present disclosure, for mounting a rear wheel (15) on the body of a two-wheeled electric vehicle will now be described with reference to Figure 1 through Figure 10.

Figure 2 illustrates a rear view of the two- wheeled electric vehicle of Figure 1 ;

Figure 3 illustrates a right hand side view of the rear wheel with the mechanism of Figure 1 ;

Figure 4 illustrates a left hand side view of the rear wheel with the mechanism of Figure 1 ;

Figure 6 illustrates a bottom view of the rear wheel with the mechanism of Figure 1 ;

Figure 7 illustrates a right hand bottom isometric view of the rear wheel with the mechanism along with swing arm, motor and chain adjuster assembly of the electric two wheeler of Figure 1; Figure 8 illustrates a right hand top isometric view of the rear wheel with the mechanism, chain adjuster assembly and swing arm of the electric two wheeler of Figure 1 ;

Figure 9 illustrates a left hand bottom isometric view of the rear wheel with the mechanism along with swing arm, motor chain adjuster assembly of the electric two wheeler of Figure 1 ; and Figure 10 illustrates a left hand top isometric view of the rear wheel with the mechanism, chain adjuster assembly and swing arm of the electric two wheeler of Figure 1.

The wheel is defined by a rim (151), a tire (152) mounted on a rim (151), a hub having a hub motor and an axle on which the stator of the hub motor is mounted, and a sprocket (155) configured to be secured to the hub connected and drivable by a pedal sprocket by means of a drive chain.. The axle is defined by a body having stubs (16) provided on either operative ends thereof

The mechanism (100) comprises a swing arm assembly defined by a pair of swing arms (8) configured to be attached to the vehicle frame. Each swing arm (8) has a recessed slot (81) configured on an operative rear end of the swing arm (8) in an operative horizontal direction (X-X’) and a through-hole configured on an operative rear end of the swing arm (8) in an operative vertical direction (Y-Y’). The recessed slot (81) is configured to slidably receive a stub (16) therein to allow the rear wheel (15) to be nested between the swing arms.

The mechanism (100) further comprises fastening means (17) and arresting means (20). The fastening means (17) are configured to receive the stubs (16), roll and guide the rear wheel from the operative rear end of the swing arm (8) into the recessed slots (81), and secure the axle to the swing arms (8). The arresting means (20) are configured to be securely received in the through-holes to arrest the displacement of the stubs (16) in the operative horizontal direction.

In an embodiment, each fastening means (17) is provided with internal threads for facilitating threadable attachment of the axle in the swing arm (8).

In an embodiment, each stub (16) is provided with external threads configured thereon.

In another embodiment, the fastening means (17) is a lug nut, which in an operative configuration, is configured to be fastened on the stubs (16).

In one embodiment, each stub (16) is provided with a groove configured thereon. In another embodiment, the fastening means (17) is a biased spring configured to be fitted in the grooves

In one embodiment, the through-hole is configured on the swing arm (8) such that through- hole is near the mouth of the recessed slot (81).

In another embodiment, the arresting means (20) is a kingpin. The kingpin is configured to pass through the through-hole, and be threadably secured to the swing arm (8), in the through-hole, with the help of a washer and a lug nut.

The present disclosure further provides a method for mounting a rear wheel (15) on the body of a two-wheeled electric vehicle. The wheel is defined by a rim (151), a tire (152) mounted on a rim (151), a hub having a hub motor and an axle on which the stator of the hub motor is mounted, and a sprocket (155) configured to be secured to the hub connected and drivable by a pedal sprocket by means of a drive chain.. The axle is defined by a body having stubs (16) provided on either operative ends thereof

The method comprises the following steps: Step 102: slidably receiving the stubs (16) in recessed slots (81) configured, in an operative horizontal direction (X-X’), on operative rear ends of each swing arm (8) of a pair of swing ar s (8) attached to the vehicle frame;

Step 104: receiving the stubs (16) in a fastening means (17) for rolling and guiding the rear wheel from the operative rear end of the swing arm (8) into the recessed slots (81), and securing the axle to the swing arms (8); and

Step 106: receiving arresting means (20) in through-holes configured, in an operative vertical direction (Y-Y’), on operative rear ends of the swing arms (8) for arresting the displacement of the operative ends of the stubs (16) in the operative horizontal direction.

The mechanism (100) is configured to simplify the process of mounting of the rear wheel (15) of two-wheeled electric vehicles, and reduce the time required for mounting and removing the wheel (15), and is hence beneficial especially when the rear wheel assembly is punctured, is to be serviced, or replaced. Further, the mechanism (100) ensures that a single person can install the wheel (15) with relatively less energy by merely sliding the wheel (15).

The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.

TECHNICAL ADVANCEMENTS

The present disclosure described herein above has several technical advantages including, but not limited to, the realization of a mechanism for mounting a rear wheel on the body of a two-wheeled electric vehicle, that:

• simplifies the process of mounting or dismounting of the rear wheel; and

• enables mounting and removal of the rear wheel in relatively lesser time.

The embodiments herein, the various features, and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

The disclosure has been described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.

The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

The foregoing description of the specific embodiments so fully reveals the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

Claims

CLAIMS:

1. A mechanism (100) for mounting a rear wheel (15) on the body of a two-wheeled electric vehicle, the wheel defined by a rim (151), a tire (152) mounted on the rim (151), a hub having a hub motor, and an axle on which the stator of the hub motor is mounted, the axle being defined by a body having stubs (16) provided on either operative ends thereof, and a sprocket (155) configured to be secured to the hub connected and drivable by a pedal sprocket by means of a drive chain, said mounting mechanism (100) comprising:

• a swing arm assembly, defined by a pair of swing arms (8), configured to be attached to the vehicle frame, each swing arm (8) having a recessed slot (81) configured on an operative rear end of said swing arm (8) in an operative horizontal direction (X-X’) and a through-hole configured on an operative rear end of said swing arm (8) in an operative vertical direction (Y-Y’), said recessed slot (81) configured to slidably receive a stub (16) therein to allow the rear wheel (15) to be nested between said swing arms (8);

• fastening means (17) for receiving the stubs (16), rolling and guiding the rear wheel from the operative rear end of the swing arm (8) into said recessed slots (81), and securing the axle to said swing arms (8); and

• arresting means (20) configured to be securely received in said through-holes, said arresting means (20) configured to arrest the displacement of the stubs (16) in the operative horizontal direction.

2. The mechanism (100) as claimed in claim 1, wherein each fastening means (17) is provided with internal threads for facilitating threadable attachment of the axle in said swing arm (8).

3. The mechanism (100) as claimed in claim 2, wherein the fastening means (17) is a lug nut.

4. The mechanism (100) as claimed in claim 1, wherein each arresting means (20) is a kingpin configured to be threadably secured in said through-hole.

5. A method for mounting a rear wheel (15) on the body of a two-wheeled electric vehicle, the wheel defined by a rim (151), a tire (152) mounted on the rim (151), a hub having a hub motor, an axle on which the stator of the hub motor is mounted, the axle being defined by a body having stubs (16) provided on either operative ends thereof, and a sprocket (155) configured to be secured to the hub connected and drivable by a pedal sprocket by means of a drive chain,, said method comprising the steps:

• slidably receiving the stubs (16) in recessed slots (81) configured, in an operative horizontal direction (X-X’), on operative rear ends of each swing arm (8) of a pair of swing arms (8) attached to the vehicle frame;

• receiving the stubs (16) in a fastening means (17) for rolling and guiding the rear wheel from the operative rear end of the swing arm (8) into said recessed slots (81), and securing the axle to said swing arms (8); and

• receiving arresting means (20) in through-holes configured, in an operative vertical direction (Y-Y’), on operative rear ends of the swing arms (8) for arresting the displacement of the operative ends of the stubs (16) in the operative horizontal direction.

6. A vehicle having a mechanism (100) for mounting a rear wheel (15) thereon.