FORM 2

THE PATENTS ACT 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See Section 10; rule 13)
TITLE OF THE INVENTION
Improved Sunvisor Assembly For A Vehicle

APPLICANTS
TATA MOTORS LIMITED, an Indian company
having its registered office at Bombay House,
24 Homi Mody Street, Hutatma Chowk,
Mumbai 400 001 Maharashtra, India
INVENTOR
Mr. Arvind Jain
an Indian National
of TATA MOTORS LIMITED,
an Indian company having its registered office
at Bombay House, 24 Homi Mody Street, Hutatma Chowk,
Mumbai 400 001 Maharashtra, India
PREAMBLE TO THE DESCRIPTION
The following specification describes the invention
2577/MUM/2007

FIELD OF INVENTION
This invention relates to vehicle sunvisor in general and more particularly the invention relates to a sunvisor assembly with transparent sunscreen.
BACKGROUND OF INVENTION
An automobile sunvisor is a device usually mounted on the cab roof and is used for shielding sunrays, which cause inconvenience while driving. Sunvisors are either molded thermoplastics or made of hard boards, sandwiched between foam layers and covered by PVC or thermoplastic sheets all around. Sunvisors can be rotated about a horizontal axis and positioned at various locations vertically. Also sunvisors can be rotated about a vertical axis and positioned to obstruct the rays coming from side windows.
Conventional sunvisor assembly comprises of a wire frame and at particular location the sunvisor has depressions for accessing the wire frame, at this location the wire frame is covered with a pipe which acts as the hinge pin for the sunvisor assembly.
The major drawback associated with the conventional sunvisor is that, the driver's view is obstructed by the sunvisor itself when it is lowered below the eye level to shield the rays efficiently. In order to overcome the above drawback this invention is devised.
OBJECTS OF INVENTION
The main object of the invention is to provide an improved sunvisor assembly which is able to block the sunrays transferring towards the vehicle occupant effectively.
2
15 JUL 2008

Yet another object of this invention is to provide an improved sunvisor assembly which is capable of providing transparency to the occupants.
Yet another object of this invention is to provide an improved sunvisor assembly which is simple in construction and cost effective.
BRIEF DESCRIPTION OF INVENTION
Improved vehicle sunvisor assembly in accordance with this invention basically comprises of sunscreen, holding frames with plurality of extended pin surfaces and apertures, provided along the periphery therein and hinge clips wherein said sunscreen is provided with plurality of apertures around the periphery, said frames are having semicircular or semi elliptical cross section and are provided with said apertures and pins on flat surface, said sunscreen is sandwiched between said frames by fixing extended pin surfaces of one frame in apertures of other frame.
Assembly of said frame and sunscreen is hinged at the hinge clips adapted to be provided at the inner roof of the vehicle.
BRIEF DESCRIPTION OF DRAWINGS
Fig 1(a) and fig 1(c) shows front view of the frame used in this invention.
Fig 1(b) shows front view of the sunscreen.
Fig 2 shows side view of the hinge clip.
Fig 3(a) shows sectional vies of frame taken at A - A of fig 1.
Fig 3(b) shows sectional vies of frame taken at B - B of fig 1.
Fig 3(c) shows sectional vies of frame taken at C - C of fig 1.
Fig 4 shows sunvisor assembly in accordance with this invention fitted to
vehicle
3
1 5 JUL 2008

DETAILED DESCRIPTION OF INVENTION
Referring now to drawings wherein the showing are for the purpose of illustrating a preferred embodiment of the invention only, and not for the purpose of limiting the same,
Referring to figs 1 to 4
Improved vehicle sunvisor assembly in accordance with this invention
basically comprises of sunscreen (1), holding frames (2,3) with plurality of
extended pin surfaces (4) and apertures (5), provided alternately along the
periphery therein and at least one hinge clip (6) wherein said sunscreen (1) is
provided with plurality of apertures (7) around the periphery, said frames (2,3)
are having semicircular or semi elliptical cross section and are provided with
said apertures and pins on flat surface, said sunscreen (1) is sandwiched
between said frames (2,3) by fixing extended pin surfaces (4) of one frame in
apertures (5)of other frame.
Said at least one hinge clip (6) is provided with at least one groove (9) and with
at least one slot (10) to accommodate the said frames (2,3). Said slot (10) helps
in accommodating the dimensional variation of said frames.
Assembly of said frame and sunscreen is hinged at the hinge clips (6) adapted
to be provided at the inner roof of the vehicle (8).
Said sunscreen has plurality of apertures at a pre determined pitch and at
locations corresponding to the apertures and pins on the frames as seen in fig
1 (a) and fig 1 (c) clearly.
The assembly of said frames acts as the hinge pin about which the improved
sunvisor assembly can be rotated about a horizontal axis to position at various
vertical positions. With the assembly of said frames snap-fitted into the clips,
the sunvisor assembly will rotate about a horizontal axis with the clips acting as
hinge and the assembly frame acting as a hinge pin. Therefore there is no
requirement of use of separate hinge pin for holding the sunvisor.
4
1 5 JUL 2008

The foregoing description is a specific embodiment of the present invention. It should be appreciated that this embodiment is described for purpose of illustration only, and that numerous alterations and modifications may be practiced by those skilled in the art without departing from the spirit and scope of the invention. It is intended that all such modifications and alterations be included insofar as they come within the scope of the invention as claimed or the equivalents thereof.
1 5 JUL 2008

WE CLAIM:
1. A sunvisor assembly for a vehicle comprising:
a sunscreen being sandwiched between at least a first and second frame;
at least one hinge clip adapted to be provided at the inner roof of the
vehicle;
said hinge clip comprising means to accommodate the sunscreen being
sandwiched between at least two frames such that the sunvisor assembly
will rotate about a horizontal axis with the hinge clips acting as hinge
and the frame and sunscreen assembly acting as a hinge pin.
2. The sunvisor assembly as claimed in claim 1, wherein a series of projections and apertures are provided alternately along the periphery of both said first and second frames such that said sunscreen is sandwiched between said first and second frames by fixing said projections of one frame in apertures of the other frame.
3. The sunvisor assembly as claimed in claim 1, wherein said sunscreen has plurality of apertures at a pre-determined pitch and at locations corresponding to the projections and apertures on the first and second frames.
4. The sunvisor assembly as claimed in claim 1, wherein said hinge clip is provided with at least one groove and at least one slot to accommodate the said first and second frames.
5. The sunvisor assembly as claimed in claim 4, wherein said slot is provided in such a way that it should be able to accommodate the dimensional variation of said frames.
6. The sunvisor assembly as claimed in claim 1, wherein said first and second frames have semi-circular or semi-elliptical cross section.
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1 5 JUL 2008

7. The sunvisor assembly as claimed in claim 1 wherein said sun screen is having transparent surface.
8. The sunvisor assembly as claimed in claim 1, wherein the said sunscreen and frame assembly is preferably snap-fitted into the hinge clip.
9. Vehicle fitted with sunvisor assembly as claimed in claims 1 to 8.
10. A sunvisor assembly hereinabove described with reference to the accompanying drawings.
Dated this 27th day of December 2007

(Karuna Goleria) of De PENNING & DePENNING
1 5 JUL 2008
TATA MOTORS LIMITED By their Agent & Attorney