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 MECHANISM FOR AN AIR
COOLER”
We, Bajaj Electricals Limited, an Indian National, of 45/47, Veer Nariman Road, Fort, Mumbai- 400001, Maharashtra, 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 an air cooler, more particularly, the present disclosure relates to a swing adjustment mechanism for an air cooler, capable of providing an adjustable range of swing angle of swing louver members of the air cooler.
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 circulating water to cooldown the airflow generated by the fan arrangement, a front grill frame arrangement through which the airflow is directed outside the air cooler, and a swing mechanism positioned on the front grill frame arrangement 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.
The swing mechanism comprises a plurality of swing louver members installed vertically on the front grill frame arrangement of the air cooler, and a driving means capable of facilitating a predefined angular range of pivotal movement of the plurality of swing louver members, such that the pivotal movement of the

plurality of swing louver members in the predefined angular range corresponds to the delivery of airflow in horizontal direction in a predefined horizontal range. However, the currently known swing mechanism for the air cooler fails to provide a solution for the adjustment of the angular range of pivotal movement of the swing louver members, and thus fails to provide adjustment of the horizontal range of delivery of airflow in the horizontal direction.
Therefore, there is a well felt need to provide a swing adjustment mechanism capable of enabling adjustment of the angular range of pivotal movement of the swing louver members, and thus capable of enabling adjustment of the horizontal range of delivery of airflow in the horizontal direction.
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.
The present disclosure relates to a swing adjustment mechanism for an air cooler, the swing adjustment mechanism comprising a plurality of swing louver members pivotally attached to a front grill frame arrangement of the air cooler, an elongated cam member including a first and second end portions, and a circumferential portion therebetween, wherein the circumferential portion defines a plurality of sections with a different level of eccentricity, and a motion transfer assembly engaging any section of the plurality of sections defined on the circumferential portion of the elongated cam member to the plurality of swing louver members.
An aspect of the present disclosure provides that the level of eccentricity of the plurality of sections on the circumferential portion of the elongated cam member increases from the first end portion to the second end portion thereof. Another aspect of the present disclosure is that the motion transfer assembly comprises a follower rail member connected to the plurality of louver members,

and an engagement mechanism capable of engaging with each of the elongated
cam member and the follower rail member.
Another aspect of the present disclosure is that the follower rail member
includes a central cuboidal section having opposite facing walls defining a pair of
engagement slots thereof, and a first and a second siderail defining a plurality of
connection holes for connecting the plurality of swing louver members thereto.
An embodiment of the present invention provides for the engagement
mechanism including a U-shaped structure slidably engaged with any section of
the plurality of sections defined on the circumferential portion of the elongated
cam member, and a pair of riding pegs slidably engaged with the pair of
engagement slots defined in the central cuboidal section of the follower rail
member thereof.
Another embodiment of the present invention provides for the engagement
mechanism including a ring-shaped structure slidably engaged with any section
of the plurality of sections defined on the circumferential portion of the
elongated cam member, and a pair of riding pegs slidably engaged with the pair
of engagement slots defined in the central cuboidal section of the follower rail
member thereof.
Another aspect of the present disclosure is that the rotational motion of the
elongated cam member corresponds to the linear movement of the follower rail
member which further corresponds to the pivotal movement of the plurality of
swing louver members in a predefined range.
Yet another aspect of the present disclosure provides that the engagement
mechanism of the motion transfer assembly is slid on the elongated cam
member to engage a first section on the first end portion defined on the
circumferential portion of the elongated cam member to correspond to a first
predefined range of the pivotal movement of the plurality of swing louver
members.
Another aspect of the present disclosure is that the engagement mechanism is

slid on the elongated cam member to engage a second section on the second end portion defined on the circumferential portion of the elongated cam member to correspond to a second predefined range of the pivotal movement of the plurality of swing louver members.
Yet another aspect of the present disclosure he engagement mechanism is slid on the elongated cam member to engage a plurality of intermediate sections between the first end portion and the second end portion on the circumferential portion of the elongated cam member, of the plurality of sections defined on the circumferential portion of the elongated cam member to correspond to any intermediate predefined range of the pivotal movement of the plurality of swing louver members.
Another aspect of the present disclosure is that the first predefined range of pivotal movement of the plurality of swing louver members is larger than the second predefined range of pivotal movement of the plurality of swing louver members.
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 the rear perspective view of an air cooler, illustrating the
positioning of a swing adjustment mechanism therein, in accordance with the
concepts of the present disclosure.
Figure 2 shows a perspective view of the swing adjustment mechanism for the air
cooler, in accordance with the concepts of the present invention.
Figure 3 is a front view of the swing adjustment mechanism for the air cooler,

illustrating various components comprised therein, in accordance with the
concepts of the present invention.
Figure 4 shows a perspective view of an elongated cam member of the swing
adjustment mechanism for the air cooler, illustrating the structure of the
elongated cam member, in accordance with the concepts of the present
disclosure.
Figure 5 shows a perspective view of a follower rail member of the swing
adjustment mechanism for the air cooler, illustrating various features defined
thereon, in accordance with the concepts of the present disclosure.
Figure 6 shows a front view of an engagement mechanism of the swing
adjustment mechanism 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 invention relate to a swing adjustment mechanism [102] for an air cooler [100], capable of enabling adjustment of the horizontal range of the airflow generated by the fan arrangement [103].

Figure 1 shows the rear perspective view of the air cooler [100], in accordance with the concepts of the present disclosure. Figure 2 shows a perspective view of a swing adjustment mechanism [102] for an air cooler [100], in accordance with the concepts of the present invention. Figure 3 is a front view of the swing adjustment mechanism [102] for the air cooler [100], in accordance with the concepts of the present invention. Figure 4 shows a perspective view of an elongated cam member [106] of the swing adjustment mechanism [102] for the air cooler [100], in accordance with the concepts of the present disclosure. Figure 5 shows a perspective view of a follower rail member [110] of the swing adjustment mechanism [102] for the air cooler [100], in accordance with the concepts of the present disclosure. Figure 6 shows a front view of an engagement mechanism [112] of the swing adjustment mechanism [102] for the air cooler [100], in accordance with the concepts of the present disclosure. FIG. 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 [103] positioned within the housing for generating an airflow, a drive arrangement employed to drive the fan arrangement [103] for enabling the same to generate the airflow, a water pump arrangement for circulating the water to cooldown the airflow generated by the fan arrangement [103], a front grill frame arrangement [101] through which the airflow is directed outside the air cooler, and a swing adjustment mechanism [102] positioned on the front grill frame arrangement [101] for varying a direction of the airflow in a horizontal 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 the new swing adjustment mechanism [102] for the air cooler [100], capable of enabling adjustment of the horizontal range of the airflow generated by the fan arrangement [103].

The swing adjustment mechanism [102] for the air cooler [100] comprises a plurality of swing louver members [104], an elongated cam member [106], and a motion transfer assembly [108]. The plurality of swing louver members [104] are pivotally attached to the front grill frame arrangement [101] of the air cooler [100]. The elongated cam member [106] is rotated by any conventionally known driving means, for example an electric motor. The motion transfer assembly [108] engages the plurality of swing louver members [104] with the elongated cam member [106], to translate rotational motion of the elongated cam member [106] into the pivotal movement of the plurality of swing louver members [104]. The structure and arrangement of the abovementioned components of the swing adjustment mechanism [102] will be described hereinafter in detail.
SWING LOUVER MEMBERS
The plurality of swing louver members [104] are employed in the swing adjustment mechanism [102] of the air cooler [100], wherein the plurality of swing louver members [104] are pivotally connected to the front grill frame arrangement [101] of the air cooler [100], while extending vertically thereon. Particularly, each end of the plurality of swing louver members [104] is pivotally connected to the front grill frame arrangement [101], while the plurality of swing louver members [104] extends vertically thereon with respect to the front grill frame arrangement [101]. Notably, the elongated cam member [106] and the motion transfer assembly [108], work in conjunction, to pivotally adjust the plurality of swing louver members [104], for varying a horizontal direction of the airflow generated by the fan arrangement [103].
ELONGATED CAM MEMBER
The elongated cam member [106] is rotatably installed on the front grill frame arrangement [101]. It may be noted that the elongated cam member [106] can be driven/rotated by any driving means known in the art. For example, the

elongated cam member [106] can be driven/rotated by an electric motor connected to the elongated cam member [106] thereof. The elongated cam member [106] includes a first end portion [106a] defined distal to the fan arrangement [103], a second end portion [106b] defined proximal to the fan arrangement [103], and a circumferential portion [106c] disposed therebetween. The second end portion [106b] further defines a cavity (not shown in the figure) for engaging the elongated cam member [106] with the driving means. Further, the circumferential portion [106c] of the elongated cam member [106] defines a plurality of sections with a different level of eccentricity on its periphery, which are capable of being engaged by the motion transfer assembly [108]. The level of eccentricity of the plurality of sections on the circumferential portion [106c] of the elongated cam member [106] increases from the first end portion [106a] to the second end portion [106b] thereof. In preferred embodiment, the plurality of sections includes a first section defined on the circumferential portion [106c] proximal to the first end portion [106a] of the elongated cam member [106], a second section defined on the circumferential portion [106c] proximal to the second end portion [106b] of the elongated cam member [106], and a plurality of intermediate sections defined on the circumferential portion [106c] between the first end portion [106a] and the second end portion [106b] of the elongated cam member [106].
MOTION TRANSFER ASSEMBLY
The motion transfer assembly [108] is provided to engage any section of the plurality of sections on the circumferential portion [106c] of the elongated cam member [106] to the plurality of swing louver members [104], such that the rotational movement of the elongated cam member [106] corresponds to the pivotal movement of the plurality of swing louver members [104]. For such purposes, the motion transfer assembly [108] includes a follower rail member [110] connected to the plurality of swing louver members [104], and an

engagement mechanism [112] capable of engaging with each of the elongated cam member [106] and the follower rail member [110].
The follower rail member [110] includes a central cuboidal section [114] having two opposite facing walls [114a, 114b] defining a pair of engagement slots [114c] thereof, and a first and second siderail [116, 118] defining a plurality of connection holes [116a] for connecting the plurality of swing louver members [104] thereto. The follower rail member [110] is connected to the plurality of swing louver members [104], by passing at least a portion of each of the plurality of swing louver members [104] through the plurality of connection holes [116a] defined in the first and second siderail [116, 118] of the follower rail member [110]. In such arrangement, the central cuboidal section [114] of the follower rail member [110] faces the elongated cam member [106] thereof.
In a preferred embodiment, the engagement mechanism [112] comprises a U-shaped structure [120] and a pair of riding pegs [122] extending sidewards from the U-shaped structure [120], such that the U-shaped structure [120] is slidably engaged with any of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106], while the pair of riding pegs [122] are slidably engaged with the pair of engagement slots [114c] defined in the central cuboidal section [114] of the follower rail member [110] thereof. In an alternate embodiment, the engagement mechanism [112] comprises a ring-shaped structure [120] and a pair of riding pegs [122], such that the ring-shaped structure [120] is slidably engaged with any of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106], while the pair of riding pegs [122] are slidably engaged with the pair of engagement slots [114c] defined in the central cuboidal section [114] of the follower rail member [110] thereof. For ease in reference, the preferred embodiment of U-shaped structure [120] is shown and described herein. For example, the engagement mechanism [112] may be installed, such that the U-shaped structure [120] is slidably engaged with to the first section of the plurality of sections defined on

the circumferential portion [106c] of the elongated cam member [106], while the pair of riding pegs [122] are slidably engaged with the pair of engagement slots [114c] defined in the central cuboidal section [114] of the follower rail member [110].
ASSEMBLY
In assembly of the swing adjustment mechanism [102], the plurality of swing louver members [104] of the swing adjustment mechanism [102] is initially pivotally installed on the front grill frame arrangement [101] of the air cooler [100], such that the plurality of swing louver members [104] are positioned vertically along the front grill frame arrangement [101] of the air cooler [100]. Upon such installation, the elongated cam member [106] along with its driving means is installed on an appropriate position on the front grill frame arrangement [101]. Thereafter, the follower rail member [110] of the motion transfer assembly [108] is positioned on top of the plurality of swing louver members [104], such that at least one portion of each of the plurality of swing louver members [104] extends through the connection holes [116a] defined on the first and second siderails [116,118] of the follower rail member [110]. Thereafter, the engagement mechanism [112] is positioned, such that the pair of riding pegs [122] are slidably engaged with the pair of engagement slots [114c] defined in the central cuboidal section [114] of the follower rail member [110], while the U-shaped structure [120] is slidably engaged with any of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106]. For example, the engagement mechanism [112] may be installed, such that the U-shaped structure [120] is slidably engaged with to the first section of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106], while the pair of riding pegs [122] are slidably engaged with the pair of engagement slots [114c] defined in the central cuboidal section [114] of the follower rail member [110].

OPERATION
While operating the swing adjustment mechanism [102] of the air cooler [100] as disclosed in the present application, a swing switch-knob on the control panel of the air cooler [100] may be switched to an ON position to activate the driving means of the elongated cam member [106], such that the driving means rotates the elongated cam member [106]. Notably, the rotational motion of the elongated cam member [106] corresponds to the linear movement of the follower rail member [110]. The linear movement of the follower rail member [110] corresponds to the pivotal movement of the plurality of swing louver members [104], which further corresponds to varying a horizontal direction of the airflow generated by the fan arrangement [103].
Notably, in the swing adjustment mechanism [102], as disclosed in the present disclosure, the angular range of pivotal movement of the plurality of swing louver members [104] and the horizontal range of varying a horizontal direction of the airflow generated by the fan arrangement [103], is dependent on the level of eccentricity of engaged section of the plurality of sections of the elongated cam member [106]. Accordingly, in the swing adjustment mechanism [102], as disclosed in the present disclosure, the angular range of pivotal movement of the plurality of swing louver members [104] can be adjusted, and thus the horizontal range of varying the horizontal direction of the airflow generated by the fan arrangement [103] can also be adjusted, based on user’s requirements. For doing so, the sliding movement of the follower rail member [110] is slidably engaged with the engagement mechanism [112], along a horizontal axis. This can be achieved by using an external sliding means (not shown) for effecting the sliding of the engagement mechanism [112] along the engagement slots [114c] defined on the follower rail member [110], to engage with either of the first section proximal to the first end portion [106a] defined on the circumferential portion [106c] of the elongated cam member [106], the second section proximal to the

second end portion [106b] defined on the circumferential portion [106c] of the elongated cam member [106], or the plurality of intermediate sections between the first end portion [106a] and the second end portion [106b] on the circumferential portion [106c] of the elongated cam member [106], of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106]. Since, each of the first section, the second section, and the plurality of intermediate sections of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106] has a different level of eccentricity, the angular range of pivotal movement of the plurality of swing louver members [104] and the horizontal range of varying a horizontal direction of the airflow generated by the fan arrangement [103] will be different, based on the engaged section amongst the first section, the second section, and the plurality of intermediate sections of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106]. For example, the engagement mechanism [112] engages with the first section to correspond to a first predefined angular range of the pivotal movement of the plurality of swing louver members [104] (and thus a first horizontal range of varying a horizontal direction of the airflow), while the engagement mechanism [112] engages with the second section to correspond to a second predefined angular range of the pivotal movement of the plurality of swing louver members [104] (and thus a second horizontal range of varying a horizontal direction of the airflow), and the engagement mechanism [112] engages with any of the intermediate sections of the plurality of sections to correspond to any intermediate predefined angular range of the pivotal movement of the plurality of swing louver members [104] (and thus a plurality of intermediate horizontal range of varying a horizontal direction of the airflow). The first predefined angular range of pivotal movement of the plurality of swing louver members [104] (the first horizontal range of varying a horizontal direction of the airflow), is larger than the second predefined angular range of pivotal

movement of the plurality of swing louver members [104] (the second horizontal range of varying a horizontal direction of the airflow). In an embodiment, the eccentricity of the first section is 5.5 millimeters to achieve the first predefined range of pivotal movement of the plurality of swing louver members [104] of - 15 degrees (left) to + 15 degrees (right), whereas the eccentricity of the second section is 1.4 millimeters to achieve the first predefined range of pivotal movement of the plurality of swing louver members [104] of – 4 degrees (left) to + 4 degrees (right).
With such an arrangement, the angular range of pivotal movement of the plurality of swing louver members [104] is capable of being varied in accordance with the requirement of the user. Thus, the swing adjustment mechanism [102] for the air cooler [100], as disclosed in the present application, provides for a more user-friendly swing functionality than the currently known swing mechanisms.
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
101 - Front grill frame arrangement
102 – Swing adjustment mechanism
103 – Fan arrangement
104 – Swing louver members 106 – Elongated cam member

106a – First end portion of the elongated cam member
106b – Second end portion of the elongated cam member
106c – Circumferential portion of the elongated cam member
108 – Motion transfer assembly
110 – Follower rail member
112 – Engagement mechanism
114 – Central cuboidal section
114a, 114b – Opposite facing walls of the central cuboidal section
114c – Engagement slots
116 – First siderail
116a – Connection holes
118 – Second siderail
120 – U-shaped structure
122 – Riding pegs

I/We claim:
1. A swing adjustment mechanism [102] for an air cooler [100], the swing
adjustment mechanism comprising:
- a plurality of swing louver members [104] pivotally attached to a front grill frame arrangement [101] of the air cooler [100];
- an elongated cam member [106] including a first and second end portions [106a, 106b], and a circumferential portion [106c] therebetween, wherein the circumferential portion [106c] defines a plurality of sections with a different level of eccentricity; and
- a motion transfer assembly [108] engaging any section of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106] to the plurality of swing louver members [104].

2. The swing adjustment mechanism [102] as claimed in claim 1, wherein the level of eccentricity of the plurality of sections on the circumferential portion [106c] of the elongated cam member [106] increases from the first end portion [106a] to the second end portion [106b] thereof.
3. The swing adjustment mechanism [102] as claimed in claim 1, wherein the motion transfer assembly [108] comprises:

- a follower rail member [110] connected to the plurality of louver members [104]; and
- an engagement mechanism [112] capable of engaging with each of the elongated cam member [106] and the follower rail member [110].
4. The swing adjustment mechanism [102] as claimed in claim 1, wherein the
follower rail member [110] includes a central cuboidal section [114] having
opposite facing walls [114a, 114b] defining a pair of engagement slots [114c]
thereof, and a first and second siderail [116, 118] defining a plurality of

connection holes [116a] for connecting the plurality of swing louver members [104] thereto.
5. The swing adjustment mechanism [102] as claimed in claim 1, wherein the engagement mechanism [112] includes a U-shaped structure [120] slidably engaged with any section of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106], and a pair of riding pegs [122] slidably engaged with the pair of engagement slots [114c] defined in the central cuboidal section [114] of the follower rail member [110] thereof.
6. The swing adjustment mechanism [102] as claimed in claim 1, wherein the engagement mechanism [112] includes a ring-shaped structure [120] slidably engaged with any section of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106], and a pair of riding pegs [122] slidably engaged with the pair of engagement slots [114c] defined in the central cuboidal section [114] of the follower rail member [110] thereof.
7. The swing adjustment mechanism [102] as claimed in claims 1-6, such that the rotational motion of the elongated cam member [106] corresponds to the linear movement of the follower rail member [110] which further corresponds to the pivotal movement of the plurality of swing louver members [104] in a predefined range.
8. The swing adjustment mechanism [102] as claimed in claims 1-6, wherein the engagement mechanism [112] of the motion transfer assembly [108] is slid on the elongated cam member [106] to engage either of a first section on the first end portion [106a] defined on the circumferential portion [106c] of the elongated cam member [106], a second section on the second end portion [106b] defined on the circumferential portion [106c] of the elongated cam member [106], or a plurality of intermediate sections between the first end portion [106a] and the second end portion [106b] on the circumferential

portion [106c] of the elongated cam member [106], of the plurality of sections defined on the circumferential portion [106c] of the elongated cam member [106].
9. The swing adjustment mechanism [102] as claimed in claims 1-6 and 8, wherein the engagement mechanism [112] engages with the first section to correspond to a first predefined range of the pivotal movement of the plurality of swing louver members [104], while the engagement mechanism [112] engages with the second section to correspond to a second predefined range of the pivotal movement of the plurality of swing louver members [104], and the engagement mechanism [112] engages with any of the intermediate sections of the plurality of sections to correspond to any intermediate predefined range of the pivotal movement of the plurality of swing louver members [104].
10. The swing adjustment mechanism [102] as claimed in claims 1-9, wherein the first predefined range of pivotal movement of the plurality of swing louver members [104] is larger than the second predefined range of pivotal movement of the plurality of swing louver members [104].