DESC:FALSE COVER OF TABLE, PEDESTAL, AND WALL FAN MOTOR
FIELD OF INVENTION:
[001] The present subject matter described herein, relates to a false cover of table, pedestal and wall fan motor. The motor false cover is easy to assemble and di-assemble which reduces cost of manufacturing operations and materials.
BACKGROUND AND PRIOR ART:
[002] Existing False Cover of TPW (Table, Pedestal, and Wall fan) Motors is having five numbers of fastener to secure the Motor covers with Gear Box or motor. In today’s era of automation and value engineering, there is need to reduce cost as well as number of operations in machining and number of manual operations.
OBJECTS OF THE INVENTION:
[003] The principal objective of the present invention is to provide a smart locking system in between Front and Back False Cover.
[004] Another object of the present subject matter is to secure the Front False Cover with less number of fasteners.
[005] Another object of the present subject matter is to increase reliability of fastening of Guard Holder Nut, bigger Circular section area of fastening.
[006] Another object of the present subject matter is to Pre-assemble the Guard Fixing nut at molders’ end so that number of operation is reduced in final assembly line as well as eliminate separate packing for Guard fixing Nut to save cost of packing material and increase stuffing in course of transport.
[007] Another object of the present subject matter is to make the whole assembly aesthetically and ergonomically more acceptable.
SUMMARY OF THE INVENTION:
[008] The subject matter disclosed herein relates to a false cover for table, pedestal, and wall (TPW) fan motor with reduce number of screw mounting holes and mounting steps. The false cover includes a guard holder nut, a front false cover and a back false cover. Further, the false cover is made of plastic material with molding process, such as injection molding. The front false cover is in rectangular base shape. A circular portion extends from the rectangular base towards front side to receive the guard holder nut. The circular portion defines a threaded profile to receive the guard holder nut. Further, the circular portion defines a through hole to allow passage of shaft of the motor. The front false cover has two vertically placed screw mounting holes on the rectangular base to mount the front false cover on front face of the motor. The front false cover has a plurality of snap lock receivers at corners of the rectangular base to receive the back false cover. The guard holder nut is provided to hold guard structure of fan to protect consumers from any accident. The guard holder nut comprises threaded profile at inner side corresponding to the threaded of the front false cover for secure engagement. To allow easy opening and closing of the guard holder nut, the guard holder nut has a continuous grooves and protrusions on outer circumference of the guard holder nut. The continuous grooves and protrusions helps the user to easily mount and un-mount the guard from the fan assembly for cleaning purpose. The back false cover has a plurality of walls which define a hollow cuboid shape profile structure to cover and protect the motor completely. The back false cover has a plurality of snap fit locks which to securely fits into the plurality of snap lock receivers of the front false cover during assembly. Further, the back false cover has a screw mounting hole at back wall to securely fix the back false cover on the motor. Based on the present structure of the false cover, the user has to take less number of manual operations to assemble the fan. Further, due to less number of screw mounting holes in the present false cover, number of machining operations are also less which ultimately reduces the cost of the fan.
[009] In order to further understand the characteristics and technical contents of the present subject matter, a description relating thereto will be made with reference to the accompanying drawings. However, the drawings are illustrative only but not used to limit scope of the present subject matter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system or methods in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:
[0011] Fig. 1 illustrates false cover assembly with motor, in accordance with an embodiment of the present subject matter;
[0012] Fig. 2 illustrates back false cover of figure 1;
[0013] Fig. 3 illustrates front false cover of fig.1;
[0014] Fig. 4 illustrates side view of front false cover of fig. 1;
[0015] Fig. 5 illustrates front view of guard nut holder of fig. 1; and
[0016] Fig. 6 illustrates side vie of guard nut holder of fig. 1
[0017] The figures depict embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0018] The subject matter disclosed herein relates to a false cover for table, pedestal, and wall (TPW) fan motor with reduce number of screw mounting holes and mounting steps. The false cover includes a guard holder nut, a front false cover and a back false cover. Further, the false cover is made of plastic material with molding process, such as injection molding. The front false cover is in rectangular base shape. A circular portion extends from the rectangular base towards front side to receive the guard holder nut. The circular portion defines a threaded profile to receive the guard holder nut. Further, the circular portion defines a through hole to allow passage of shaft of the motor. The front false cover has two vertically placed screw mounting holes on the rectangular base to mount the front false cover on front face of the motor. The front false cover has a plurality of snap lock receivers at corners of the rectangular base to receive the back false cover. The guard holder nut is provided to hold guard structure of fan to protect consumers from any accident. The guard holder nut comprises threaded profile at inner side corresponding to the threaded of the front false cover for secure engagement. To allow easy opening and closing of the guard holder nut, the guard holder nut has a continuous grooves and protrusions on outer circumference of the guard holder nut. The continuous grooves and protrusions helps the user to easily mount and un-mount the guard from the fan assembly for cleaning purpose. The back false cover has a plurality of walls which define a hollow cuboid shape profile structure to cover and protect the motor completely. The back false cover has a plurality of snap fit locks which to securely fits into the plurality of snap lock receivers of the front false cover during assembly. Further, the back false cover has a screw mounting hole at back wall to securely fix the back false cover on the motor. Based on the present structure of the false cover, the user has to take less number of manual operations to assemble the fan. Further, due to less number of screw mounting holes in the present false cover, number of machining operations are also less which ultimately reduces the cost of the fan. The guard holder nut is designed to facilitate tightening screws/have continuous grooves and protrusions on outer circumference for easily mount and un-mount with front false cover, which facilitates also to eliminate cost of packing for Guard fixing nut and assembly cost of the same.

[0019] It should be noted that the description and figures merely illustrate the principles of the present subject matter. It should be appreciated by those skilled in the art that conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present subject matter. It should also be appreciated by those skilled in the art that by devising various arrangements that, although not explicitly described or shown herein, embody the principles of the present subject matter and are included within its spirit and scope. Furthermore, all examples recited herein are principally intended expressly to be for pedagogical purposes to aid the reader in understanding the principles of the present subject matter and the concepts contributed by the inventor(s) to furthering the art and are to be construed as being without limitation to such specifically recited examples and conditions. The novel features which are believed to be characteristic of the present subject matter, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures.
[0020] These and other advantages of the present subject matter would be described in greater detail with reference to the following figures. It should be noted that the description merely illustrates the principles of the present subject matter. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present subject matter and are included within its scope.
[0021] Fig. 1 illustrates false cover with motor, in accordance with an embodiment of the present subject matter. Fig. 1 illustrates exploded view of the motor with its False cover set 100 having a Front false cover 102 and a Back false cover 108 along with a guard holder nut 101. As shown in the figure 1, the front false cover 102 is in rectangular base shape 103. Referring to figure 3, the front false cover 102 has a circular portion 104 which extends from the rectangular base 103 towards fan guard side to receive the guard holder nut 101. Referring to figure 4, the circular portion 104 defines a threaded profile 104a to receive the guard holder nut 101. Again referring to figure 3, the circular portion 104 defines a through hole 106 to allow passage of shaft of the motor 200.
[0022] In an embodiment, referring to figure 3, the front false cover 102 has two vertically placed screw mounting holes 107 on the rectangular base 103 to mount the front false cover 102 on front face of the motor 200. The motor 200 has two screw holes to receive screws of the front false cover 102 in vertical position to restrict rotation of the front false cover 102. The mounting holes 107 are provided above the circular portion 104 in vertical direction at 180o circular distance from each other. The vertical position/ribs of the screw mounting holes 107 restrict rotation of the front false cover 102 in any direction. The vertically positioned screw mounting holes 107 securely fixe the front false cover 102 on the motor 200.
[0023] Referring to figure 3, the front false cover 102 has a plurality of snap lock receivers 105a, 105b, 105c, 105d (jointly refer as 105) at corners of the rectangular base 103 to receive the back false cover 108.
[0024] In an embodiment of the present subject matter, referring to figure 5 and 6, the guard holder nut 101 is provided to hold guard structure of fan to protect consumers/users from any accident. The guard holder nut 101 comprises a threaded profile 101a at inner side corresponding to the threaded profile 104a of the front false cover 102 for secure engagement. To allow easy opening and closing of the guard holder nut 101, the guard holder nut 101 has a continuous grooves and protrusions 101b on outer circumference of the guard holder nut 101. The continuous grooves and protrusions 101b help the user to easily mount and un-mount the guard from the fan assembly for cleaning purpose.
[0025] In an embodiment of the present subject matter, referring to figure 1 and 2, the back false cover 108 has a plurality of walls 108a, 108b, 108c, 108d which define a hollow cuboid shape profile structure to cover and protect the motor completely. The hollow cuboid shape profile has a plurality of vertical slots 111 to allow passage of air to air cool the motor. Further, there is an opening at lower surface for passage of wires also. The back false cover 108 has a plurality of snap fit locks 109a, 109b, 109c, 109d (jointly refer as 109) to securely fits the back false cover 108 onto the plurality of snap lock receivers 105 of the front false cover 102 during assembly. The plurality of snap fit locks 109 are provided at front corners of the false back cover 108 corresponding to plurality of snap receivers 105 of the front false cover 102. Further, the back false cover 108 has a screw mounting hole at back wall 108d to securely fix the back false cover 108 on the motor 200 from back side. Further, the top surface of the back false cover 108 has a circular opening 110 for oiling of the motor.
[0026] Based on the present structure of the false cover, the user has to take less number of manual operations to assemble the fan. Further, due to less number of screw mounting holes in the present false cover, number of machining operations are also less which ultimately reduces the cost of the fan
[0027] In an embodiment of the present subject matter, the guard holder nut is made bigger so that the two vertical screws to be fastened on the vertical axis of Front False Cover, can be tightened easily, without taking the power screw driver in the vicinity of Guard Holder nut.
Benefits extracted from the present subject matter:
1. Items Reduced (3 nos.):
i) Two screws for fixing Front False Cover with Front Cover
ii) One Screw for fixing Back False Cover with Gear Box
iii) Grommet for Back False Cover (for 4 core cable)
2. Machining operations reduced (6 nos.):
i) 2 drilling operations from Front Cover
ii) 2 tapping operations from Front Cover
iii) 1 drilling operation from Gear Box
iv) 1 tapping operation from Gear Box
3. Manual operations reduced at production line (9 nos.):
i) Inserting 4 screws on Front False Cover
ii) 2 Screws fixing on Front False Cover with Front Cover
iii) 1 Screw fixing on Back False Cover with Gear Box
iv) Grommet fitting on Back False Cover
v) Back Guard fixing Nut (Pre-assembled at vendor’s end)

[0028] The present false cover is made of plastic material, such as PVC, LD, HD, PP by simple molding process, such as injection molding.
[0029] Although embodiments for the present subject matter have been described in language specific to structural features, it is to be understood that the present subject matter is not necessarily limited to the specific features described. Rather, the specific features and methods are disclosed as embodiments for the present subject matter. Numerous modifications and adaptations of the system/component of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the scope of the present subject matter.
,CLAIMS:We claim:

1. A false cover (100) for table, pedestal, and wall fan motor (200), the false cover (100) comprising:
a front false cover (102) having a rectangular base (103), a circular portion (104) extends towards front side () from the rectangular base to receive a guard holder nut (101), wherein the circular portion (104) defines a threaded profile (104a) to receive the guard holder nut (101),
a plurality of snap lock receivers (104) provided at corners of the rectangular base (103);
a back false cover (108) having a plurality of walls (108a, 108b, 108c, 108d) defining a hollow cuboid shape profile to cover the motor (200), the back false cover (108) has a plurality of snap fit locks (109) to securely fit into the plurality of snap lock receivers (104) of the front false cover (102).

2. The false cover (100) as claimed in claim 1, wherein the front false cover (102) has two vertically placed screw mounting holes (107) to mount the front false cover (102) on front face of the motor (200).

3. The false cover (100) as claimed in claim 1, wherein the circular portion (104) has a through hole (106) to allow passage of shaft of the motor (200).

4. The false cover (100) as claimed in claim 1, wherein the guard holder nut (101) comprises threaded profile (101a) at inner side corresponding to the threaded profile (104a) of the front false cover (102).

5. The false cover (100) as claimed in claim 1, wherein the guard holder nut (101) has a continuous grooves and protrusions (101b) to rotate the guard holder nut (101) on the front false cover (102).

6. The false cover (100) as claimed in claim 1, wherein the guard holder nut (101) provided to hold/guide guard structure of fan.

7. The false cover (100) as claimed in claim 1, wherein the false cover (100) is made of plastic material.

8. The false cover (100) as claimed in claim 1, wherein the back false cover (108) has a plurality of vertical slots (111) at lower surface for air cooling of the motor (200).