US20110243745A1

US20110243745A1 - Structure for combining vane frame and vane of hanging fan

Info

Publication number: US20110243745A1
Application number: US12/750,964
Authority: US
Inventors: Wen-Hsiung Ko
Original assignee: KO WAN-CHEN
Current assignee: KO WAN-CHEN
Priority date: 2010-03-31
Filing date: 2010-03-31
Publication date: 2011-10-06

Abstract

A structure for combining a vane frame and a vane of a hanging fan includes an elastic plate onto the vane frame, a pressing portion at a front end of the elastic plate, a latching portion at a rear end of the elastic plate, and three embedding blocks on the vane frame. One of the embedding blocks abuts the elastic plate. Slants are formed on both sides of the embedding block. A snap-in portion is formed at the bottom of the embedding block. Three embedding holes are formed at a front end of the vane, each having a connecting surface for connecting the vane with each embedding block. The pressing portion abuts the vane. The connecting surface and slant abut with each other. The front end of the embedding hole is snapped with the snap-in portion. The latching portion is pressed against a rear end of the embedding hole.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates to a hanging fan assembling structure, and more particularly to a structure for combining a vane frame and a vane of a hanging fan.
2. Description of the Related Art
To facilitate the process of combining a vane frame and a vane of a hanging fan, many quick assembling structures for vanes of a hanging fan are available in the market. With reference to FIG. 8 for a conventional structure for assembling a vane of a hanging fan quickly, the structure comprises an elastic plate 92 and three stop elements 93 installed onto a vane frame 91, and a vane 94 including a connecting hole 95 substantially in a key shape and formed at a front end of the vane 94 and disposed at a position corresponding to each stop element 93, a small diameter portion 96 formed at a front end of the connecting hole 95 for sheathing and engaging the connecting hole 95 of the vane 94 with the corresponding stop element 93 of the vane frame 91, so that a pushing and pressing force of the elastic plate 92 can drive the stop element 93 to be embedded and latched into the small diameter portion 96 of the connecting hole 95 to achieve the effect of installing the vane 94 quickly.
However, the elastic plate 92 of the aforementioned conventional structure for assembling the vane of the hanging fan simply provides an elasticity of pushing and pressing the vane 94 in a single direction towards the back, so that there is a risk of loosening the vane 94 easily. Further, if the vane 94 is pushed and pressed by the elastic plate 92 as shown in FIG. 9, such that if the small diameter portion 96 in the connecting hole 95 is stopped at the stop element 93, a gap 97 will be formed on a side of the connecting hole 95, and the gap 97 will not be supported effectively. As a result, when the vane 94 of a hanging fan is rotated, the vane 94 may be shaken easily.
In view of the foregoing shortcomings of the conventional structure of assembling a vane of a hanging fan, the inventor of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally developed a structure for combining a vane frame and a vane of a hanging fan in accordance with the present invention.

SUMMARY OF THE INVENTION

Therefore, it is a primary objective of the present invention to provide an improved structure for combining a vane frame and a vane of a hanging fan, and the structure can connect the vane frame with the vane more securely.
To achieve the foregoing objective, the present invention provides a structure for combining a vane frame and a vane of a hanging fan, and the structure comprises:
a vane frame, having a mounting portion, and the mounting portion including a fixing block, an elastic plate installed onto the fixing block, a pressing portion formed at an end of the elastic plate and curled towards a front end of the mounting portion, and a latching portion formed at another end of the elastic plate and extended towards a rear end of the mounting portion;
three embedding blocks, disposed on the mounting portion of the vane frame, and one of the embedding blocks being pressed onto the elastic plate, and a slant being formed separately on two opposite sides of each embedding block and tapered towards a front end of the mounting portion, and each embedding block having a snap-in portion concavely formed at the bottom of the embedding block and snapped into a rear end of the mounting portion; and
a vane, having three embedding holes formed at a front end of the vane, and the vane being coupled to each corresponding embedding block through the embedding hole of the vane, and the embedding hole being tapered towards a front end of the vane front end and having a connecting surface corresponding to the slant of the embedding block, and the pressing portion of the elastic plate pressing a distal edge of the front end of the vane to push and press the vane, such that the connecting surface of the vane embedding hole is pressed and coupled to the slant of the embedding block, and the embedding hole aligned towards the distal edge of front end of the vane is snapped into the snap-in portion of the embedding block, and the latching portion of the elastic plate is pressed and coupled to the embedding hole corresponding to the embedding block on the fixing block and aligned towards the distal edge of the rear end of the vane.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a perspective view of an assembly of the present invention;

FIG. 3 is a schematic view of an application status of the present invention, showing that a front end of a vane is inserted obliquely into an opening of a pressing portion of an elastic plate and a force is applied towards the pressing portion of the elastic plate;

FIG. 4 is a schematic view of an application status of the present invention, showing that a vane is pressed downwardly to snap an embedding hole onto a corresponding embedding block of a mounting portion;

FIGS. 5 and 6 are schematic views of an application status of the present invention, showing that a pressing portion of an elastic plate pushes and presses a front end of a vane front, such that the vane is moved backward

FIG. 7 is a schematic view of an application status of the present invention, showing that a press portion of an elastic plate is pressed downwardly to remove a vane;

FIG. 8 is an exploded view of a conventional structure for assembling a vane of a hanging fan quickly; and

FIG. 9 is a schematic view of a conventional structure for assembling a vane of a hanging fan quickly.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The structural assembly, overall operation and technical characteristics of the present invention will become apparent with the detailed description of a preferred embodiment and the illustration of the related drawings as follows.
With reference to FIGS. 1 and 2 for a structure for combining a vane frame and a vane of a hanging fan in accordance with the present invention, the structure comprises a locking portion 12 formed at a front end of a vane frame 11, a mounting portion 13 extended from a rear end of the vane frame 11 for coupling the front end of the vane, three embedding blocks 14 disposed on the mounting portion 13, and a vane 21 mounted onto the mounting portion 13 of the vane frame 11.
The vane frame 11 includes a fixing block 15 protruded from the mounting portion 13, an elastic plate 16 installed onto the fixing block 15, and having an end curled towards a front end of the mounting portion 13 to form a pressing portion 161 that is comprised of two substantially S-shaped hook aims, and the pressing portion 161 includes an opening 162 aligned towards a rear end of the mounting portion 13, and another end of the elastic plate 16 has a press portion 163 extended upwardly, and a latching portion 164 extended from the rear end of the mounting portion 13, such that a force can be applied to press the press portion 163 and drive the latching portion 164 to move up and down, and the mounting portion 13 includes a stop block 131 protruded form a front side of the pressing portion 161 of the elastic plate 16 and disposed opposite to the pressing portion 161.
Each embedding block 14 is disposed scatteredly on the mounting portion 13 of the vane frame 11, and one of the embedding blocks 14 is secured with the elastic plate 16 and the fixing block 15 by a locking element 17 at the same time, and both sides of each embedding block 14 are tapered towards the front end of the mounting portion 13 and also tapered from top to bottom to form a slant 141, and a snap-in portion 142 substantially in a groove shape and disposed at the bottom of the front end of each embedding block 14 and concavely snapped into the rear end of the mounting portion 13.
The vane 21 includes an embedding hole 22 formed at a front end of the vane 21 and disposed at a position corresponding to each embedding block 14, and each embedding hole 22 of the vane 21 is coupled to each corresponding embedding block 14 and pressed by the elastic plate 16 to push backward, wherein the embedding hole 22 is substantially in a water drop shape and tapered towards a front end of the vane 21 to form a connecting surface 22 corresponsive to the slant 141 of the embedding block 14, and the opening 162 of the pressing portion 161 of the elastic plate 16 is pressed and coupled to a distal edge at the front end of the vane 2 to provide an elasticity for pushing the vane 21 towards the back to connect the connecting surface 221 of the embedding hole 22 of the vane 21 with the slant 141 of the embedding block 14, and the embedding hole 22 aligned towards the front end of the vane 21 is latched onto the snap-in portion 142 of the embedding block 14, and the latching portion 164 of the elastic plate 16 corresponding to the embedding block 14 is contained in the embedding hole 22 above the fixing block 15 and abutted and coupled to the embedding hole 22 which is aligned towards the distal edge of the rear end of the vane 21.
When the present invention is assembled as shown in FIG. 3, a distal edge at the front end of the vane 21 is inserted into the opening 162 of the pressing portion 161 of the elastic plate 16. If a force is applied in a direction towards the pressing portion 161 of the elastic plate 16, the pressing portion 161 of the elastic plate 16 will be deformed to align the position of the vane 21 of the embedding hole 22 with the position of the embedding block 14 of the mounting portion 1, and the stop block 131 of the mounting portion 13 can be used for restricting the deformation of the elastic plate 16 of the pressing portion 161, so as to prevent the pressing portion 161 from being damaged by an excessively applied force. In FIG. 4, if an assembler stops applying a force to push the vane 21 forward after the vane 21 is pressed to latch the embedding hole 22 of the vane 21 onto the embedding block 14 of the mounting portion 13, the restoring elasticity of the elastic plate 16 drives the pressing portion 161 of the elastic plate 16 to push the front end of the vane 21 as shown in FIGS. 5 and 6, such that the vane 21 can be moved towards the back to further compress the connecting surface 221 of the embedding hole 22 of the vane 21 to abut and couple the slant 141 of the embedding block 14, and the embedding hole 22 aligned towards a distal edge of the front end of the vane 21 is snapped onto the snap-in portion 142 of the embedding block 14, and the latching portion 164 of the elastic plate 16 is elastically pressed into the embedding hole 22 corresponding to the embedding block 14 on the fixing block 15, and abutted and coupled to the embedding hole 22 aligned towards the distal edge of the rear end of the vane 21, so that the double elastic pressing effect of the pressing portion 161 of the elastic plate 16 and the latching portion 164 provides a way of securing the front end of the embedding hole 22 onto the snap-in portion 142 of the embedding block 14, and connecting the connecting surface 221 of the embedding hole 22 with the slant 141 of the embedding block 14, so that the vane 21 can be installed onto the mounting portion 13 of the vane frame 11 quickly and securely. When the vane 21 is rotated normally, a centrifugal force produced by the rotation of the vane 21 further latches the connecting surface 221 of the embedding hole 22 of the vane 21 with the slant 141 of the embedding block 14 to prevent the vane 21 from being shaken or separated during the operation of the hanging fan.
On the other hand, if it is necessary to remove the vane 21 from the mounting portion 13 of the vane frame 11 as shown in FIG. 7, the assembler simply presses the press portion 163 of the elastic plate 16 to separate the latching portion 164 of the elastic plate 16 from the embedding hole 22 to release the latching portion 164 from the elastic pressing effect at the internal periphery of the embedding hole 22, and then pushes the vane 21 to move forward and compress the pressing portion 161 of the elastic plate 16, such that the front end of the embedding hole 22 of the vane 21 can be separated from the snap-in portion 142 of the embedding block 14. Now, the stop block 131 disposed on the mounting portion 13 also can provide an excessive deformation to the pressing portion 161 to align the position of the embedding hole 22 of the vane 21 with the position of the embedding block 14 of the mounting portion 13 again, so as to remove the vane 21 from the mounting portion 13 of the vane frame 11 quickly.
With the aforementioned structure, the present invention has the following advantages:
1. In the present invention, a double elastic pressing effect of the vane 21 provided by the pressing portion 161 and the latching portion 164 of the elastic plate 16 secures the front end of the embedding hole 22 with the snap-in portion 142 of the embedding block 14 and connects the connecting surface 221 of the embedding hole 22 with the slant 141 of the embedding block 14, so that the vane 21 can be assembled onto the mounting portion 13 of the vane frame 11 more securely.
2. In the present invention, both sides of each embedding block 14 are tapered towards the front end of the mounting portion 13 and tapered from top to bottom to form the slant 141, and the embedding hole 22 has a connecting surface 221 corresponding to the slant 141 of the embedding block 14, such that when the vane 21 is operated normally, the centrifugal force of the vane 21 further latches the connecting surface 221 of the embedding hole 22 of the vane 21 with the slant 141 of the embedding block 14 more securely to overcome the problem of a loosened or separated vane 21 occurred during the operation of the hanging fan.
3. In the present, invention, the pressing portion 161 of the elastic plate 16 comes with the opening 162 formed at the rear end of the mounting portion 13, so that the invention has an effect of guiding the distal edge of the front end of the vane 21 for a quick installation, and the vane 21 can be installed or removed quickly and conveniently.

Claims

1. A structure for combining a vane frame and a vane of a hanging fan, and the structure comprising:

a vane frame, having a mounting portion, and the mounting portion including a fixing block, an elastic plate installed onto the fixing block, a pressing portion formed at an end of the elastic plate and curled towards a front end of the mounting portion, and a latching portion formed at another end of the elastic plate and extended towards a rear end of the mounting portion;

three embedding blocks, disposed on the mounting portion of the vane frame, and one of the embedding blocks being pressed onto the elastic plate, and a slant being formed separately on two opposite sides of each embedding block and tapered towards a front end of the mounting portion, and each embedding block having a snap-in portion concavely formed at the bottom of the embedding block and snapped into a rear end of the mounting portion; and

a vane, having three embedding holes formed at a front end of the vane, and the vane being coupled to each corresponding embedding block through the embedding hole of the vane, and the embedding hole being tapered towards a front end of the vane and having a connecting surface corresponding to the slant of the embedding block, and the pressing portion of the elastic plate pressing a distal edge of the front end of the vane to push and press the vane, such that the connecting surface of the vane embedding hole is pressed and coupled to the slant of the embedding block, and the embedding hole aligned towards the distal edge of the front end of the vane is snapped into the snap-in portion of the embedding block, and the latching portion of the elastic plate is pressed and coupled to the embedding hole corresponding to the embedding block on the fixing block and aligned towards the distal edge of the rear end of the vane.

2. The structure for combining a vane frame and a vane of a hanging fan according to claim 1, wherein the pressing portion of the elastic plate is comprised of two substantially S-shaped hook arms curled towards a front end of the mounting portion, and the pressing portion includes an opening aligned towards a rear end of the mounting portion.

3. The structure for combining a vane frame and a vane of a hanging fan according to claim 1, further comprising a locking element for locking one of the embedding blocks to the elastic plate and the fixing block at the same time.

4. The structure for combining a vane frame and a vane of a hanging fan according to claim 1, wherein each embedding block has a slant formed separately on two opposite sides of the embedding block and tapered from top to bottom.

5. The structure for combining a vane frame and a vane of a hanging fan according to claim 1, wherein the mounting portion further comprises a stop block protruded from a front side of the pressing portion of the elastic plate and disposed opposite to the pressing portion.