FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
AND
THE PATENT RULES, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
“A SWING ADJUSTMENT SYSTEM FOR AN AIR COOLER”
We, Bajaj Electricals Limited, an Indian National, of 45/47, Veer Nariman Road, Fort Mumbai- 400001, India.
The following specification particularly describes the invention and the manner in which it is to be performed.

TECHNICAL FIELD
The present disclosure relates to the field of an air cooler, more particularly, to a swing adjustment system for an air cooler, capable of enabling independent adjustment of a range of pivotal movement of each of a first and second set of louver members comprised therein.
BACKGROUND
This section is intended to provide information relating to the field of the invention and thus, any approach or functionality described below should not be assumed to be qualified as prior art merely by its inclusion in this section.
Air coolers are commonly known in the heating, ventilation, and air cooling (HVAC) industry, and are widely used in households. The air cooler is employed for delivery of cool air in a desired space or room. Air coolers may be one of a personal air cooler, a tower air cooler, a window air cooler, and a desert air cooler. Typically, the air cooler comprises a plastic housing, a fan arrangement positioned within the housing for generating an airflow, a drive arrangement employed to drive the fan arrangement for enabling the same to generate the airflow, a water pump arrangement for delivering water to the airflow generated by the fan arrangement, a front frame through which the airflow is directed outside the air cooler, and a swing mechanism positioned on the front frame for varying a direction of the airflow in a predefined angular range. A structure and arrangement of the air cooler is commonly known to a person skilled in the art, and the details of the same are

not repeated herein for the sake of brevity. Additional supporting accessory arrangements may also be envisioned.
Conventionally, the swing unit comprises a set of louver members installed vertically on the front frame arrangement of the air cooler, a common swing adjustment mechanism for adjustment of a range of pivotal movement of the set of louver members, and a driving means capable of operating the common swing adjustment mechanism. The pivotal movement of the set of louver members in the range corresponds to the delivery of airflow in horizontal and/or vertical direction in a predefined horizontal and/or vertical range. However, the currently known swing unit fails to provide for two separate swing adjustment mechanisms for independent adjustment of the range of pivotal movement of two separate set of louver members employed therein, and thus, fails to provide adjustment of the horizontal and/or vertical range of delivery of airflow in the horizontal and/or vertical direction.
Therefore, there is a well felt need to provide a swing adjustment system for the air cooler, capable of enabling independent adjustment of a range of pivotal movement of each of a first and second set of louver members comprised therein.
SUMMARY OF THE INVENTION
This section is intended to introduce certain objects of the disclosed method and system in a simplified form and is not intended to identify the key advantages or features of the present disclosure.

One aspect of the present disclosure relates to a swing adjustment system for an air cooler, wherein the air cooler comprises a front frame. The swing adjustment system comprises a motor, a first and second set of louver members pivotally attached to the front frame, and a first and second swing adjustment mechanism. The first swing adjustment mechanism is adapted to translate a rotary motion of the motor into a pivotal motion of the first set of louver members, and the second swing adjustment mechanism is adapted to translate a rotary motion of the motor into a pivotal motion of the second set of louver members. Notably, each of the first and second swing adjustment mechanism may be independently adjusted for independently varying the pivotal movement of the first and second set of louver members, respectively.
Another aspect of the present disclosure is that the first set of louver members and the second set of louver members are arranged in a left-right configuration and/or a top-bottom configuration.
Yet another aspect of the present disclosure is that each of the first and second swing adjustment mechanism forms a crank-lever linkage mechanism.
Yet another aspect of the present disclosure is that each of the first and second swing adjustment mechanism comprises a lever link and an adjuster link. Particularly, the lever link includes a first lever end portion connected to the motor, a second lever portion connected to the first and second set of louver members, and an intermediate lever portion defining a plurality of fulcruming cavities. While, the adjuster link includes a first adjuster end pivotally fixed to a front frame, and a second adjuster end being connected to one of the plurality of fulcruming cavities of the lever link,

for fulcruming of the lever link thereof. Further, a follower link is fixedly attached to the second lever end portion of the lever link, and adapted to slide laterally corresponding to the lateral movement of the second lever end portion. Notably, the follower link is connected to the first and second set of louver members, respectively, such that the lateral movement of the second lever end portion corresponds to the pivotal movement of the first and second set of louver members, respectively.
Yet another aspect of the present invention is that the lateral movement of the first lever end portion by the motor, corresponds to a lateral movement of the second lever end portion thereof, which further corresponds to a lateral movement of the follower link, to finally correspond to a pivotal movement of the first and second set of louver members. Notably, the second adjuster end is adjusted to connect with other of the plurality of fulcruming cavities of the lever link, to adjust a range of pivotal movement of the first and second set of the first and second set of louver members.
Yet another aspect of the present disclosure is that the follower link of the first and second swing adjustment mechanism is connected to the first and second set of louver members, respectively, by means of one or more actuation pins, to enable translation of the lateral movement of the follower link into a pivotal movement of the first and second louver members.
Yet another aspect of the present disclosure is that each of the first and second variable swing mechanism further comprises a crank link connected to the motor, including an eccentric connection portion, and the crank link being adapted to rotate

corresponding to the rotary motion of the motor, and a connecting link including a first connector end pivotally attached to the eccentric connection portion of the crank link, and a second connector end being pivotally attached to the first lever end portion to connect the first lever end portion with the motor, such that the rotary motion of the motor corresponds to a lateral movement of the first lever end portion of the lever link.
An embodiment of the present disclosure provides for the intermediate lever end portion of the lever link defining three (3) fulcruming cavities defined along a length of the lever link.
Yet another aspect of the present disclosure is that the lateral movement of the first lever end portion of the lever link by the motor in an input range, corresponds to the lateral movement of the second lever end portion of the lever link in a first output range, while the second adjuster end is connected to a first fulcruming cavity of the intermediate lever portion of the lever link.
Yet another aspect of the present disclosure is that the lateral movement of the first lever end portion of the lever link by the motor in an input range, corresponds to the lateral movement of the second lever end portion of the lever link in a second output range, while the second adjuster end of the adjuster link is connected to a second fulcruming cavity of the intermediate lever portion of the lever link.
Yet another aspect of the present disclosure is that the lateral movement of the first lever end portion of the lever link by the motor in an input range, corresponds to the lateral movement of the second lever end portion of the lever link in a third

output range, while the second adjuster end of the adjuster link is connected to a third fulcruming cavity of the intermediate lever portion of the lever link.
Yet another aspect of the present disclosure is that the lateral movement of the second lever end portion of the lever link in the first output range corresponds to the pivotal movement of the first and second set of louver members, respectively, in a first pivotal range, the lateral movement of the second lever end portion of the lever link in the second output range corresponds to the pivotal movement of the first and second set of louver members, respectively, in a second pivotal range, and the lateral movement of the second lever end portion of the lever link in the third output range corresponds to the pivotal movement of the first and second set of louver members, respectively, in a third pivotal range.
Yet another aspect of the present disclosure is that each of the first swing adjustment mechanism and the second swing adjustment mechanism employs a common crank link connected to the motor thereof.
BRIEF DESCRIPTION OF DRAWINGS
In order to explain the technical solution in the embodiments of the present application more clearly, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application. For those skilled in the art, without any creative work, other drawings can be obtained based on these drawings.

Figure 1 shows a rear perspective view of an air cooler employing a swing adjustment system, in accordance with the concepts of the present disclosure.
Figure 2 shows a front perspective view of the swing adjustment system for the air cooler, in accordance with the concepts of the present disclosure.
Figure 3 is a front view of the swing adjustment system for the air cooler, illustrating various components comprised therein, in accordance with the concepts of the present disclosure.
Figure 4 is a sectional perspective view of the swing adjustment system for the air cooler, in accordance with the concepts of the present disclosure.
Figure 5a is a front view of a lever link employed in the swing adjustment system for the air cooler, in accordance with the concepts of the present disclosure.
Figure 5b is a perspective view of the lever link employed in the swing adjustment system for the air cooler, in accordance with the concepts of the present disclosure.
Figure 6 is a perspective view of a follower link employed in the swing adjustment system for the air cooler, in accordance with the concepts of the present disclosure.
DETAILED DESCRIPTION
In the following description, for the purposes of explanation, various specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent, however, that embodiments of the present invention may be practiced without these specific details. Several features described

hereafter can each be used independently of one another or with any combination of other features. An individual feature may not address any of the problems discussed above or might address only one of the problems discussed above. Some of the problems discussed above might not be fully addressed by any of the features described herein. Exemplified embodiments of the present invention are described below, as illustrated in various drawings in which like reference numerals refer to the same parts throughout the different drawings.
The embodiments of the present disclosure relate to a swing adjustment system [200] for an air cooler [100], capable of independently operating a first and second swing adjustment mechanism [204a, 204b] comprised therein, for independent adjustment of a pivotal range of each of a first and second set of louver members [102a, 102b] thereof.
Figure 1 shows a rear perspective view of the air cooler [100] employing the swing adjustment system [200], in accordance with the concepts of the present disclosure. Figure 2 shows a front perspective view of the swing adjustment system [200] for the air cooler [100], in accordance with the concepts of the present disclosure. Figure 3 is a front view of the swing adjustment system [200] for the air cooler [100], in accordance with the concepts of the present disclosure. Figure 4 is a sectional perspective view of the swing adjustment system [200] for the air cooler [100], in accordance with the concepts of the present disclosure. Figure 5a is a front view of a lever link [206] employed in the swing adjustment system [200], in accordance with the concepts of the present disclosure. Figure 5b is a perspective view of the lever link [206] employed in the swing adjustment system [200], in

accordance with the concepts of the present disclosure. Figure 6 is a perspective view of a follower link [214] employed in the swing adjustment system [200], in accordance with the concepts of the present disclosure. Figures 1, 2, 3, 4, 5 and 6 are to be viewed in conjunction with one another, in order to completely understand the concepts of the present disclosure.
The air cooler [100] comprises a plastic housing, a fan arrangement positioned within the housing for generating an airflow, a drive arrangement employed to drive the fan arrangement for enabling the same to generate the airflow, a water pump arrangement for delivering water to the airflow generated by the fan arrangement, a front frame [106] through which the airflow is directed outside the air cooler [100], and a swing adjustment system [200] positioned on the front frame [106] for varying a direction of the airflow in a range. A structure and arrangement of the air cooler is commonly known to a person skilled in the art, and the details of the same are not repeated herein for the sake of brevity. Additional supporting accessory arrangements may also be envisioned. The present invention discloses a new swing adjustment system [200] for the air cooler [100], capable of enabling independent adjustment of the horizontal and/or vertical range of delivery of airflow by each of the first set of louver members [102a] and second set of louver members [102b].
The swing adjustment system [200] for the air cooler [100] comprises a motor [202], the first and second set of louver members [102a, 102b], and a first and second swing adjustment mechanism [204a, 204b]. The motor [202] is employed in the swing adjustment system [200] to operate the first and second swing adjustment mechanism [204a, 204b]. A structure and arrangement of the other components of

the swing adjustment system [200] of the present invention will be explained hereinafter in detail.
FIRST AND SECOND SET OF LOUVER MEMBERS
The first and second set of louver members [102a, 102b] are adapted to deliver airflow from the fan arrangement to the user in a range. Notably, one end of each of the first set of louver members [102a] and the second set of louver members [102b] is pivotally attached to the front frame [106] of the air cooler [100]. The first set of louver members [102a] and the second set of louver members [102b] are arranged in one of a left-right configuration and/or a top-bottom configuration. In particular, the left-right configuration corresponds to delivery of airflow in a horizontal direction, in a horizontal range, while the top-bottom configuration corresponds to delivery of airflow in a vertical direction, in a vertical range.
FIRST AND SECOND SWING ADJUSTMENT MECHANISM
The first swing adjustment mechanism [204a] is adapted to translate a rotary motion of the motor [202] into a pivotal motion of the first set of louver members [102a], and the second swing adjustment mechanism [204b] adapted to translate a rotary motion of the motor [202] into a pivotal motion of the second set of louver members [102b]. Notably, each of the first and second swing adjustment mechanism [204a, 204b] may be independently manipulated for independently varying the pivotal movement of the first and second set of louver members [102b]. Each of the first

and second swing adjustment mechanism [204a, 204b] of the swing adjustment system [200] comprises a lever link [206], an adjuster link [208], a crank link [210], a connecting link [212], and a follower link [214]. A structure and arrangement of the aforementioned components of the first and second swing adjustment mechanism [204a, 204b] will be explained hereinafter in detail.
LEVER LINK
The lever link [206] includes a first lever end portion [206a], a second lever end portion [206b], and an intermediate lever portion [206c]. The first lever end portion [206a] is connected to the motor [202], while the second lever end portion [206b] is connected to the first and second set of louver members [102a, 102b], and the intermediate lever portion [206c] defines a plurality of fulcruming cavities [206d] thereon. The lever link [206] further defines a cylindrical portion [206e] on the second lever end portion [206b] thereof. Notably, a lateral movement of the first lever end portion [206a] of the lever link [206] by the motor [202], corresponds to a lateral movement of the second lever end portion [206b] thereof, to correspond to a lateral movement of the follower link [214] to finally correspond to a pivotal movement of the first and second set of louver members [102a, 102b]. In the preferred embodiment, the intermediate lever portion [206c] of the lever link [206] defines three (3) fulcruming cavities [206d] defined along the length of the link, in each of the first swing adjustment mechanism [204a] and the second swing adjustment mechanism [204b].

ADJUSTER LINK
The adjuster link [208] includes a first adjuster end [208a] and a second adjuster end [208b]. The first adjuster end [208a] is pivotally fixed to the front frame [106] of the air cooler [100], while the second adjuster end [208b] is connected to one of the plurality of fulcruming cavities [206d] defined on the intermediate lever portion [206c] of the lever link [206], for fulcruming the lever link [206] thereof. Particularly, the second adjuster end [208b] of the adjuster link [208] is adjusted to connect with the other of the plurality of fulcruming cavities [206d] of the lever link [206], to adjust a range of pivotal movement of the first and second set of louver members [102a, 102b].
The lateral movement of the first lever end portion [206a] of the lever link [206] of each of the first and second swing adjustment mechanism [204a, 204b], by the motor [202] in an input range, corresponds to the lateral movement of the second lever end portion [206b] in a first output range while the second adjuster end [208b] is connected to a first fulcruming cavity of the lever link [206] of each of the first and second swing adjustment mechanism [204a, 204b]. The lateral movement of the second lever end portion [206b] of the lever link [206] of the first and second swing adjustment mechanism [204a, 204b], in the first output range corresponds to the pivotal movement of the first and second set of louver members [102a, 102b] in a first pivotal range.
Similarly, the lateral movement of the first lever end portion [206a] by the motor

[202] in an input range, corresponds to the lateral movement of the second lever end portion [206b] in a second output range while the second adjuster end [208b] is connected to a second fulcruming cavity of the lever link [206] of each of the first and second swing adjustment mechanism [204a, 204b]. The lateral movement of the second lever end portion [206b] of the lever link [206] of the first and second swing adjustment mechanism [204a, 204b], in the second output range corresponds to the pivotal movement of the first and second set of louver members [102a, 102b] in a second pivotal range.
Further, the lateral movement of the first lever end portion [206a] by the motor [202] in an input range, corresponds to the lateral movement of the second lever end portion [206b] in a third output range while the second adjuster end [208b] is connected to a third fulcruming cavity of the lever link [206] of each of the first and second swing adjustment mechanism [204a, 204b]. The lateral movement of the second lever end portion [206b] of the lever link [206] of the first and second swing adjustment mechanism [204a, 204b], in the third output range corresponds to the pivotal movement of the first and second set of louver members [102a, 102b] in a third pivotal range.
Though, the connection of the second adjuster end [208b] of the adjuster link [208] of each of the first and second swing adjustment mechanism [204a, 204b] is described to be same in the present disclosure, the connection of the second adjuster end [208b] of the adjuster link [208] may be different for each of the first and second swing adjustment mechanism [204a, 204b], i.e., for example, the second adjuster end [208b] of the first swing adjustment mechanism [204a] is connected to the first

fulcruming cavity, while the second adjuster end [208b] of the second swing adjustment mechanism [204b] is connected to the second fulcruming cavity. With such an arrangement, the lateral movement of the first lever end portion [206a] of the lever link [206] of the first swing adjustment mechanism [204a], by the motor [202] in an input range, corresponds to the lateral movement of the second lever end portion [206b] in the first output range, while the lateral movement of the first lever end portion [206a] of the lever link [206] of the second swing adjustment mechanism [204b], by the motor [202] in an input range, corresponds to the lateral movement of the second lever end portion [206b] in the second output range. Accordingly, the lateral movement of the second lever end portion [206b] of the lever link [206] of the first swing adjustment mechanism [204a], in the first output range corresponds to the pivotal movement of the first set of louver members [102a] in the first pivotal range, and the lateral movement of the second lever end portion [206b] of the lever link [206] of the second swing adjustment mechanism [204b], in the third output range corresponds to the pivotal movement of the second set of louver members [102b] in the second pivotal range.
CRANK LINK
The crank link [210] includes an eccentric connection portion [210a], and is connected to the motor [202], whereby it is adapted to rotate corresponding to the rotary motion of the motor [202]. In the preferred embodiment, each of the first swing adjustment mechanism [204a] and the second swing adjustment mechanism [204b] employs a common crank link [210] connected to the motor [202] thereof.

CONNECTING LINK
The connecting link [212] is adapted to connect the crank link [210] to the lever link [206] of each of the first and second swing adjustment mechanism [204a, 204b]. The connecting link [212] includes a first connector end [212a] pivotally attached to the eccentric connection portion [210a] of the crank link [210], and a second connector end [212b] pivotally attached to the first lever end portion [206a] of the lever link [206], to connect the first lever end portion [206a] with the motor [202].
FOLLOWER LINK
The follower link [214] is fixedly attached to the second lever portion of the lever link [206] and adapted to slide laterally corresponding to the lateral movement of the second lever end portion [206b] of the lever link [206]. The follower link [214] defines a plurality of connection holes [214a] to pivotally attach the first and second set of louver members [102a, 102b]. The follower link [214] further defines at least one lever attachment hole [214b], such that the lever link [206] is capable of being fixedly attached by slidably locking the cylindrical portion [206e] of the lever link [206] therein. Notably, particularly, the lateral movement of the second lever end portion [206b] corresponds to the pivotal movement of the first and second set of louver members [102a, 102b].
Particularly, the follower link [214] of the first swing adjustment mechanism [204a] is connected to the first set of louver members [102a], and the follower link [214] of the second swing adjustment mechanism [204b] is connected to the second set

of louver members [102b], each by means of the plurality of connection holes [214a] defined thereon. More particularly, the follower link [214] of the first and second swing adjustment mechanism [204a, 204b] is connected to the first and second set of louver members [102a, 102b], respectively, by means of one or more actuation pins, to enable translation of the lateral movement of the follower link [214] into a pivotal movement of the first and second louver members [102a, 102b].
Particularly, the connection between each of the crank link [210], the connecting link [212] and the lever link [206] is a pivotal attachment, while the connection between each of the lever link [206] and the adjuster link [208] is a restricted-slot attachment, and the connection between each of the lever link [206] and the follower link [214] is fixed attachment, such that the assembly of each of the first and second swing adjustment mechanism [204a, 204b] forms a crank-lever linkage mechanism.
ASSEMBLY
In assembly of the swing adjustment system [200], initially, the motor [202] is mounted on the front frame [106] of the air cooler [100], such that the shaft of the motor [202] is positioned towards the fan arrangement. Each of the first and second set of louver members [102a, 102b] is then pivotally attached to the front frame [106] of the air cooler [100]. Thereafter, the first swing adjustment mechanism [204a] and the second swing adjustment mechanism [204b] assembled in the form of the crank-lever linkage mechanism, are mounted by means of the crank link [210]

which is common for the first swing adjustment mechanism [204a] and the second swing adjustment mechanism [204b], such that the crank link [210] is coupled with the shaft of the motor [202]. Finally, the first set of louver members [102a] is connected to the follower link [214] of the first swing adjustment mechanism [204a], and the second set of louver members [102b] is connected to the follower link [214] of the second swing adjustment mechanism [204b].
OPERATION
In operation, a swing switch-knob on a control panel (not shown in the figure) of the air cooler [100] may be switched to an ON position to activate the motor [202] of the swing adjustment system [200] as disclosed in the present disclosure, such that the rotary motion of the motor [202] corresponds to a lateral movement of the first lever end portion [206a] of the lever link [206] of each of the first swing adjustment mechanism [204a] and second swing adjustment mechanism [204b], to further correspond to a lateral movement of the second lever end portion [206b] of the lever link [206], to finally provide a pivotal movement of the first set of louver members [102a] and the second set of louver members [102b], respectively.
Notably, in the preferred embodiment of the swing adjustment system [200], as disclosed in the present invention, the range of the pivotal movement of the first set of louver members [102a] and the second set of louver members [102b] is dependent on the connection of the second adjuster end [208b] of the adjuster link [208] with the three (3) fulcruming cavities [206d] defined on the intermediate lever

portion [206c] of the lever link [206] of the first and the second swing adjustment mechanism [204b], respectively. Accordingly, the range of pivotal movement of the first set of louver members [102a] and the second set of louver members [102b] can be adjusted, by switching the fulcruming position of the lever link [206] of each of the first and second swing adjustment mechanism [204a, 204b] to any of the three (3) fulcruming cavities [206d] defined thereon. For doing so, the second adjuster end [208b] of the adjuster link [208] is shifted to one of the three (3) fulcruming positions corresponding to the three (3) fulcruming cavities [206d]. This can be achieved by using a first swing adjustment knob (not shown in the figure) connected to the first swing adjustment mechanism [204a], and a second swing adjustment knob (not shown in the figure) connected to the second swing adjustment mechanism [204b], such that each of the first and the second swing adjustment knob are capable of moving in three positions corresponds to the three (3) fulcruming position of the lever link [206], independent of one another.
With such an arrangement, the range of pivotal movement of each of the first set of louver members [102a] and second set of louver members [102b] is capable of being independently varied in accordance with the requirement of the user. Thus, the swing adjustment system [200] for the air cooler [100], as disclosed in the present disclosure, provides for a wider and adjustable range of airflow output, and easy and independent control over the horizontal and/or vertical range of airflow from each of the first and second set of louver members [102a, 102b] thereof. Furthermore, the present disclosure provides for a solution which employs a single motor [202] to independently control the pivotal range of each of the first and

second set of louver members [102a, 102b].
While the preferred embodiments of the present invention have been described hereinabove, it should be understood that various changes, adaptations, and modifications may be made therein without departing from the spirit of the invention and the scope of the appended claims. It will be obvious to a person skilled in the art that the present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive.
LIST OF COMPONENTS
100 – Air cooler
102a – First set of louver members
102b – Second set of louver members
106 – Front frame
200 – Swing adjustment system
202 – Motor
204a – First swing adjustment mechanism
204b – Second swing adjustment mechanism
206 – Lever link

206a – First lever end portion
206b – Second lever end portion
206c – Intermediate lever portion
206d – Fulcruming cavities
206e – Cylindrical portion
208 – Adjuster link
208a – First adjuster end
208b – Second adjuster end
210 – Crank link
210a – Eccentric connection portion
212 – Connecting link
212a – First connector end
212b – Second connector end
214 – Follower link
214a – Lever attachment hole
214b – Connection holes

We claim:
1. A swing adjustment system [200] for an air cooler [100], the air cooler [100]
comprising a front frame [106], the swing adjustment system [200] comprising:
- a motor [202];
- a first and second set of louver members [102a, 102b] pivotally attached to the front frame [106]; and
- a first and second swing adjustment mechanism [204a, 204b], whereby the first swing adjustment mechanism [204a] translates a rotary motion of the motor [202] into a pivotal motion of the first set of louver members [102a], and the second swing adjustment mechanism [204b] translates a rotary motion of the motor [202] into a pivotal motion of the second set of louver members [102b],
wherein each of the first swing adjustment mechanism [204a] and second swing adjustment mechanism [204b] may be independently manipulated for independently varying the pivotal movement of the first set of louver members [102a] and the second set of louver members [102b], respectively.
2. The swing adjustment system [200] as claimed in claim 1, wherein the first set of louver members [102a] and the second set of louver members [102b] are arranged in one of: a left-right configuration.
3. The swing adjustment system [200] as claimed in claim 1, wherein each of the first and second swing adjustment mechanism [204a, 204b] forms a crank-lever linkage mechanism.

4. The swing adjustment system [200] as claimed in claim 1, wherein each of the first and second swing adjustment mechanism [204a, 204b] comprises:
o a lever link [206] including a first lever end portion [206a] connected
to the motor [202], a second lever end portion [206b] connected to
the first and second set of louver members [102a, 102b], and an
intermediate lever portion [206c] defining a plurality of fulcruming
cavities [206d]; and
o an adjuster link [208] including a first adjuster end [208a] pivotally
fixed to the front frame [106], and a second adjuster end [208b]
being connected to one of the plurality of fulcruming cavities [206d]
of the lever link [206], for fulcruming the lever link [206] thereof,
o a follower link [214] fixedly attached to the second lever end portion
[206b] of the lever link [206], and adapted to slide laterally
corresponding to the lateral movement of the second lever end
portion [206b], the follower link [214] is connected to the first and
second set of louver members [102a, 102b], respectively, such that
the lateral movement of the second lever end portion [206b]
corresponds to the pivotal movement of the first and second set of
louver members [102a, 102b], respectively,
wherein a lateral movement of the first lever end portion [206a] by the motor
[202], corresponds to a lateral movement of the second lever end portion [206b]
thereof, which corresponds to the lateral movement of the follower link [214]

to finally correspond to a pivotal movement of the first and second set of louver members [102a, 102b],
wherein the second adjuster end [208b] is adjusted to connect with other of the plurality of fulcruming cavities [206d] of the lever link [206], to adjust a range of pivotal movement of the first and second set of louver members [102a, 102b].
5. The swing adjustment system [200] as claimed in claim 1, wherein the follower link [214] of the first and second swing adjustment mechanism [204a, 204b] is connected to the first and second set of louver members [102a, 102b], respectively, by means of one or more actuation pins, to enable translation of the lateral movement of the follower link [214] into the pivotal movement of the first and second louver members [102a, 102b].
6. The swing adjustment system [200] as claimed in claim 1, wherein each of the first and second swing adjustment mechanism [204a, 204b] comprises:
o a crank link [210] connected to the motor [202], and including an eccentric connection portion [210a], the crank link [210] being adapted to rotate corresponding to the rotary motion of the motor [202];
o a connecting link [212] including a first connector end [212a] pivotally attached to the eccentric connection portion [210a] of the crank link [210], and a second connector end [212b] being pivotally attached to the first lever end portion [206a] to connect the first lever end portion [206a] with the motor [202];

wherein the rotary motion of the motor [202] corresponds to a lateral movement of the first lever end portion [206a] of the lever link [206].
7. The swing adjustment system [200] as claimed in claims 1-3, wherein the intermediate lever portion [206c] of the lever link [206] defines three (3) fulcruming cavities [206d] defined along a length of the lever link [206].
8. The swing adjustment system [200] as claimed in claims 1-4, wherein the lateral movement of the first lever end portion [206a] by the motor [202] in an input range, corresponds to the lateral movement of the second lever end portion [206b] in a first output range while the second adjuster end [208b] is connected to a first fulcruming cavities [206d] of the lever link [206].
9. The swing adjustment system [200] as claimed in claims 1-5, wherein the lateral movement of the first lever end portion [206a] by the motor [202] in an input range, corresponds to the lateral movement of the of the second lever end portion [206b] in a second output range while the second adjuster end [208b] is connected to a second fulcruming cavity of the lever link [206].
10. The swing adjustment system [200] as claimed in claims 1-6, wherein the lateral movement of the first lever end portion [206a] by the motor [202] in an input range, corresponds to the lateral movement of the of the second lever end portion [206b] in a third output range while the second adjuster end [208b] is connected to a third fulcruming cavity of the lever link [206].

11. The swing adjustment system [200] as claimed in claims 1-7, wherein the lateral movement of the second lever end portion [206b] in the first output range corresponds to the pivotal movement of the first and second set of louver members [102a, 102b], respectively, in a first pivotal range, the lateral movement of the second lever end portion [206b] in the second output range corresponds to the pivotal movement of the first and second set of louver members [102a, 102b], respectively, in a second pivotal range, and the lateral movement of the second lever end portion [206b] in the third output range corresponds to the pivotal movement of the first and second set of louver members [102a, 102b], respectively, in a third pivotal range.
12. The swing adjustment system [200] as claimed in claim 1, wherein each of the first swing adjustment mechanism [204a] and the second swing adjustment mechanism [204b] employs a common crank link [210] connected to the motor [202] thereof.