DESC:FORM 2
The Patent Act 1970
(39 of 1970)
&
The Patent Rules, 2005

COMPLETE SPECIFICATION
(SEE SECTION 10 AND RULE 13)

TITLE OF THE INVENTION

“SEAT BELT ASSEMBLY FOR A QUADRICYCLE”

APPLICANT:

Name Nationality Address
Mahindra & Mahindra Limited Indian Mahindra & Mahindra Ltd.,
MRV, Mahindra World City (MWC),
Plot No. 41/1, Anjur Post, Chengalpattu,
Kanchipuram District – 603204 (TN) INDIA

The following specification particularly describes and ascertains the nature of this invention and the manner in which it is to be performed:-

TECHNICAL FIELD
[001] The embodiments herein generally relate to seat belt systems in vehicles, and more particularly but not exclusively to seat belt systems in quadricycles.

BACKGROUND
[002] Quadricycles are four-wheeled micro-cars having limitations in terms of weight, power and speed. Since the quadricycles are of light weight, safety is of a prime concern. Weight target of a quadricycle should ideally be less than or equal to 450 kg when compared with N1 Class of vehicles. Therefore, in quadricycle, there are constraints in adding specific reinforcements for meeting seat belt anchorage regulatory targets. Owing to quadricycles having panels of less strength than the panels of a normal vehicle such as cars or the like, ability of the seat belt mechanism to secure the occupant may not be efficient.
[003] There are seat belt mechanisms that have been developed for similar vehicles. For example, in campings cars, in the event of an accident, at least one vertical column provided on the back rest of the seat has coupling points for two three-point safety belts at an upper end and a coupling flange at a lower end for connecting with one of the vehicle floor or chassis. The column forms a support portion of the seat. The flange may be attached directly to a beam of the vehicle chassis. However, there is no column based structure introduced in this design. Further, none of the available mechanisms solve the problem of seat belt anchorage mechanism, which will be able to take up the load directly by the chassis.
[004] Therefore, there exists a need for a seat belt assembly that can eliminate the aforementioned drawbacks.

OBJECTS
[005] The principal object of an embodiment of this invention is provide a seat belt assembly for a quadricycle type vehicle.
[006] Another object of an embodiment of this invention is to provide a seat belt assembly with reduced number of parts.
[007] These and other objects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

BRIEF DESCRIPTION OF DRAWINGS
[008] The embodiments of this invention are illustrated in the accompanying drawings, through out which like reference letters indicate corresponding parts in the various figures. The embodiments herein will be better understood from the following description with reference to the drawings, in which:
[009] FIG. 1 depicts a sectional view of the seat belt assembly directly connected onto the chassis, according to an embodiment of the invention as disclosed herein;
[0010] FIG. 2 depicts sectional view of a seat belt anchorage unit connected to the chassis, according to an embodiment of the invention as disclosed herein;
[0011] FIG. 3 depicts a perspective view of an wire rope, according to an embodiment of the invention as disclosed herein;
[0012] FIG. 4 depicts a side view of a rear end of a vehicle having conventional seat belt assembly after collision; and
[0013] FIG. 5 depicts a side view of a rear end of a vehicle having the seat belt assembly after collision, according to an embodiment of the invention as disclosed herein.

DETAILED DESCRIPTION
[0014] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed 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.
[0015] The embodiments herein achieve a seat belt assembly for a quadricycle type vehicle. Referring now to the drawings, and more particularly to FIGS. 1 through 5, where similar reference characters denote corresponding features consistently throughout the figures, there are shown embodiments.
[0016] FIG. 1 depicts a sectional view of the seat belt assembly directly connected onto the chassis, according to an embodiment of the invention as disclosed herein. In an embodiment the seat belt assembly 100 includes a seat belt (not shown), a seat belt buckle 102, a wire rope 104 and a seat belt anchorage unit 106. In an embodiment the seat belt is connected to the seat belt buckle 102 which in turn is connected to the wire rope 104. In an embodiment the wire rope 104 is mounted to a chassis cross member 200 of the vehicle (not shown) via the body in white (BIW) floor hole 202. However, it is also within the scope of the invention to mount the wire rope 104 to a chassis long member (not shown) of the vehicle. During a collision at the rear of vehicle, the load applied on the seat belt is directly transferred to the chassis cross member 200, i.e., the load is carried by the chassis cross-member 200.
[0017] FIG. 2 depicts sectional view of a seat belt anchorage unit connected to the chassis, according to an embodiment of the invention as disclosed herein. In an embodiment the seat belt anchorage unit 106 is connected with the wire rope 104 which in turn is directly connected to the chassis cross-member 200. In this configuration, the stiffness of the BIW and anchorage brackets is utilized for better protection.
[0018] FIG. 3 depicts a perspective view of a wire rope, according to an embodiment of the invention as disclosed herein. In an embodiment the seat belt is connected to the seat belt buckle 102, which in turn is connected to the seat belt anchorage unit 106. Further, the seat belt anchorage unit 106 is directly connected to the wire rope 104. In an embodiment the wire rope 104 is a steel wire rope. However, it is also within the scope of the invention to provide any other type of wire rope 104 without otherwise deterring the intended function of the wire rope 104 as can be deduced from the description.
[0019] FIG. 4 depicts a side view of a rear end of a vehicle having conventional seat belt assembly after collision. FIG. 5 depicts a side view of a rear end of a vehicle having the seat belt assembly 100 after collision, according to an embodiment of the invention as disclosed herein. During a collision at the rear end of the vehicle having conventional seat belt assembly, the rear body of the vehicle tends to collapse, which is a safety concern for quadricycle type vehicles. It is apparent from the Fig. 5, that the rear body of the vehicle remains intact, since the chassis cross member 200 carries the entire load from the seat belt. In an embodiment the seat belt assembly 100 is provided for a quadricycle. However, it is also within the scope of the invention to provide the seat belt assembly 100 to any other type of vehicle.
[0020] The technical advantages of the seat belt assembly 100 are as follows. The number of parts e.g. anchorage reinforcement units in the seat belt assembly 100 is reduced, and the additional cross-members to meet the regulatory targets are eliminated. Further, the seat belt assembly 100 is robust providing required resistance to anchorages by direct connection to the chassis (not shown) of the vehicle.
[0021] The foregoing description of the specific embodiments will so fully reveal 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.

CLAIMS
We claim,
1. A seat belt assembly for a vehicle, the seat belt assembly comprising:
a wire rope;
a seat belt buckle connected to a seat belt;
a seat belt anchorage unit connected to the seat belt buckle and the wire rope,
wherein
the wire rope is connected to a chassis cross member of the vehicle.
2. The seat belt assembly as claimed in claim 1, wherein the wire rope is a steel wire rope.
3. The seat belt assembly as claimed in claim 1, wherein the wire rope is connected to the chassis cross member through a body in white floor hole in the vehicle.
4. The seat belt assembly as claimed in claim 1, wherein the vehicle is a quadricycle.

5. The seat belt assembly as claimed in claim 1 is adapted to transfer a load received by the seat belt to the chassis cross member of the vehicle.

Date: 18th April, 2016 Signature:
Dr.Kalyan Chakravarthy

ABSTRACT
Seat belt assembly for a vehicle includes a wire rope, a seat belt buckle connected to a seat belt, a seat belt anchorage unit connected to the seat belt buckle and the wire rope. The wire rope is connected to a chassis cross member of the vehicle. The load received by the seat belt is transferred to the chassis cross member of the vehicle during a collision.
FIG. 1

,CLAIMS:CLAIMS
We claim,
1. A seat belt assembly for a vehicle, the seat belt assembly comprising:
a wire rope;
a seat belt buckle connected to a seat belt;
a seat belt anchorage unit connected to the seat belt buckle and the wire rope,
wherein
the wire rope is connected to a chassis cross member of the vehicle.
2. The seat belt assembly as claimed in claim 1, wherein the wire rope is a steel wire rope.
3. The seat belt assembly as claimed in claim 1, wherein the wire rope is connected to the chassis cross member through a body in white floor hole in the vehicle.
4. The seat belt assembly as claimed in claim 1, wherein the vehicle is a quadricycle.

5. The seat belt assembly as claimed in claim 1 is adapted to transfer a load received by the seat belt to the chassis cross member of the vehicle.