TWI550192B - The blades can be synchronized with the ceiling fan - Google Patents

Description

The blade can simultaneously expand and collapse the ceiling fan

The present invention relates to a fan, and more particularly to a ceiling fan in which blades can be simultaneously unfolded and collapsed.

A synchronizing and unfolding structure of a spreading fin fan disclosed in the Patent No. M387920 of the Republic of China, which mainly comprises a driving device, a plurality of casings, a plurality of connecting rods and a plurality of blades, wherein the driving device is provided outwardly a radially arranged support frame, and a pivot post is disposed at a near end of the support frame; a pivot hole corresponding to the pivot post is disposed at a center of the case, and the case is provided with three perforations around the pivot hole; the link The two joint sections are integrally formed at two ends of a connecting section, and the connecting rod section is provided with a corresponding perforating through hole, and the connecting rod is respectively provided with a through hole of the two ends and a perforation of two adjacent shells by two screws. One end of the fan blade is provided with a corresponding portion of the corresponding housing, and the combination portion is provided with a screwing hole corresponding to the pivoting hole, and the combined portion is provided with a screwing hole corresponding to the through hole for the screw to pass through the connecting rod The through hole and the housing are perforated and locked to the screw hole; accordingly, the housing is pivoted relative to the support frame by the connecting rod, and the fan blade and the housing are synchronously unfolded or folded.

The above-mentioned spread-wing fan synchronous unfolding and folding structure has the disadvantage that the connecting blades are synchronously linked or unfolded by the connecting rods, and the connecting structure has a plurality of components (links) and a plurality of pivoting points, once among them If the structural deformation of a component or the pivoting function of one of the pivot points fails, the function of the synchronous linkage will be invalidated. In addition, the design change of the number of different blades and the different relative positions of the blades must be Redesigning the structural shape of each connecting rod can achieve the effect of synchronously interlocking the fan blades for unfolding and folding.

Therefore, the object of the present invention is to provide a ceiling fan which is simple in construction, smooth in transmission, and arbitrarily combinable, and which is suitable for various blade numbers and combinations, and which can be simultaneously unfolded and folded.

Therefore, the ceiling fan of the present invention which can be simultaneously unfolded and collapsed comprises a driving device, a lower turntable, a plurality of upper support frames, a plurality of shaft members, a plurality of springs, a belt member, and a plurality of blades.

The drive unit includes a rotating base.

The lower turntable is disposed on the rotating base and includes a plurality of pivoting regions spaced around the axis of the self. The pivoting zones each have a pivoting aperture.

The upper support brackets are detachably disposed on a circumferential side of the rotating base, and are located above the lower turntable, and respectively correspond to the pivoting regions.

The shaft members are respectively pivotally disposed in the pivoting regions of the lower turntable, and respectively include an upper end portion, a lower end portion pivotally disposed at a pivot hole of the corresponding pivoting portion, and a gear portion. The upper end portions of the shaft members are respectively pivotally disposed on the upper support frames.

The springs respectively have a first end and a second end disposed oppositely. The first ends are respectively connected to the shaft members. The second end connection The lower turntable.

The belt member surrounds the shaft members and meshes with the gear portions of the shaft members.

The blades are respectively driven by the shaft members, and each of the blades is connected to an upper end portion of the corresponding shaft member.

Wherein, when the rotating base changes between a rotating state and a stationary state, the driving belt member cooperates with the rotating shaft members to synchronously drive the blades, so that the blades are respectively in an unfolded position with the rotating shaft members as an axis And a change in rotation between a spring folding position. The springs respectively provide the restoring forces of the shaft members to rotate the blades to the spring retracted position.

The utility model has the advantages that the driving belt member cooperates with the rotating shaft members to synchronously drive the blades to rotate between a deployed position and a spring folding position, and the transmission member is simple, and the annular transmission mode is more traditional than the connecting rod transmission. Smooth and suitable for a variety of blade numbers and combinations of ceiling fans.

1‧‧‧ drive

11‧‧‧Spinning base

2‧‧‧ Lower turntable

21‧‧‧ pivot zone

211‧‧‧ pivot hole

212‧‧‧Arc Guide Hole

213‧‧‧Expanded end

214‧‧‧Close end

22‧‧‧Hooks

3‧‧‧Upper support

4‧‧‧ shaft parts

41‧‧‧Upper end

42‧‧‧Bottom

43‧‧‧ Gear Department

44‧‧‧Limited arm

441‧‧‧Bump

5‧‧‧ leaf stand

51‧‧‧Connecting end

52‧‧‧Set the end

6‧‧‧ leaves

7‧‧‧ Spring

71‧‧‧ first end

72‧‧‧ second end

8‧‧‧Transmission belt parts

9‧‧‧Lighting plate

10‧‧‧shade

L‧‧‧ axis

The other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the accompanying drawings in which: FIG. 1 is a perspective view illustrating an embodiment of a ceiling fan in which the blades of the present invention can be simultaneously unfolded and collapsed; Figure 2 is a plan view showing a plurality of blades of the embodiment in a deployed position; Figure 3 is a partial exploded perspective view showing the combination of a blade and the remaining components of the embodiment; Figure 4 is a top plan view showing the blades of the embodiment in a spring-retracted position; and Figure 5 is a top plan view showing the majority of the blade holders of the embodiment in the spring-retracted position.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of a ceiling fan in which the blade of the present invention can be synchronously unfolded includes a driving device 1 , a lower turntable 2 , a plurality of upper support frames 3 , a plurality of rotating shaft members 4 , and a plurality of leaf frames 5 . A plurality of blades 6, a plurality of springs 7, a belt member 8, a lamp panel 9, and a lampshade 10.

The drive unit 1 includes a motor (not shown) and a rotary base 11 that is rotatable about its own axis L by the motor.

The lower turntable 2 is disposed on the rotating base 11 and coaxial with the rotating base 11 and includes a plurality of pivoting regions 21 spaced around the axis L, and is disposed on the bottom surface and respectively corresponding to the pivot The hook member 22 of the region 21 is provided. Each of the pivoting regions 21 has a pivot hole 211 and an arcuate guide hole 212. Each of the arcuate guide holes 212 has a deployed end portion 213 and a folded end portion 214 disposed oppositely. The hooks 22 are respectively located on a side of the arcuate guide holes 212 adjacent to the folding end 214.

The upper support frames 3 are detachably disposed on the circumferential side of the rotating base 12 and above the lower turntable 2, and respectively correspond to the pivoting regions 21.

The shaft members 4 are rotatably disposed between the pivoting regions 21 of the lower turntable 2 and the upper support frames 3, respectively. Each of the shaft members 4 includes an upper end portion 41 pivotally disposed on the corresponding upper support frame 3, and a pivoting phase The lower end portion 42 of the pivot hole 211 of the corresponding pivoting portion 21, a gear portion 43, and a limiting arm portion 44 projecting outward. Each of the limiting arm portions 44 has a stud 441 which is slidably disposed on the arcuate guiding hole 212 of the corresponding pivoting region 21.

The leaf racks 5 have a connecting end portion 51 and a setting end portion 52 which are oppositely disposed. The connecting end portions 51 of the leaf racks 5 are respectively connected to the upper end portions 41 of the shaft members 4, and the disposed end portions 52 of the leaf racks 5 are respectively provided for the blades 6 to be connected. Each of the blade frames 5 can be used to adjust the angle between the connected blades 6 and the rotating surface when the blades 6 are rotated.

The springs 7 respectively include a first end 71 and a second end 72 disposed oppositely. The first ends 71 of the springs 7 are respectively hooked on the protrusions 441 of the limiting arm portions 44 of the shaft members 4, and the second ends 72 of the springs 7 are respectively sleeved on the lower dial 2 Hook member 22. Thereby, the springs 7 respectively provide the restoring force of the shaft member 4 to slide the boss 441 of the limiting arm portion 44 to the closing end portion 214 of the corresponding curved guide hole 212.

The belt member 8 surrounds the shaft members 4 and meshes with the gear portions 43 of the shaft members 4. The belt member 8 is a time gauge belt.

The lamp panel 9 is disposed below the lower turntable 2 and is provided for a light fixture (not shown).

The lampshade 10 is disposed on the lamp panel 9 and covers the lamp.

In this embodiment, the lower turntable 2, the upper support frames 3, and the leaf frames 5 are all made of aluminum material to achieve weight reduction and high structural strength, but the materials of the above-mentioned members of the present invention are not The above limits are also available for other materials. In addition, in the embodiment, the blades 6, the pivoting regions 21 of the lower turntables 2, the upper support frames 3, the leaf shelves 5 and The number of the springs 7 corresponds to four, respectively, but the number of the above-mentioned members of the present invention is not limited to the above, and may also vary according to design requirements.

Wherein, when the rotating base 12 is driven by the motor 11 to change between a rotating state and a stationary state, the belt member 8 cooperates with the rotating shaft members 4 to simultaneously drive the blades 6, so that the blades 6 respectively The rotating shaft member 4 is a shaft center and is rotated between a deployed position (see FIGS. 1 and 2) and a spring folding position (see FIGS. 4 and 5).

When the rotating base 12 is in a stationary state, the blades 6 are folded in the spring folding position (see FIGS. 4 and 5) and do not overlap each other, and the blades 6 are matched in a disc shape. However, the boss 441 of the limiting arm portion 44 of the shaft member 4 is located at the folding end portion 214 of the corresponding curved guiding hole 212, and the motor 11 is driven to rotate the rotating base 12 by the user to rotate. The centrifugal force causes each of the blades 6 to rotate with the respective rotating shaft member 4 as an axis and rotates relative to the lower turntable 2 and the upper supporting frame 3, and simultaneously drives the adjacent blades 6 to the same through the driving belt member 8 and the rotating shaft members 4 The unfolded position (see FIG. 1 and FIG. 2) is such that the vanes 6 are apart from each other and do not overlap each other. At this time, the studs 441 of the limiting arm portions 44 of the rotating shaft members 4 are located at the corresponding curved guiding holes 212. The end portions 213 are unfolded and the springs 7 are respectively stretched.

When the user closes the motor 11, the studs 441 of the limiting arm portions 44 of the respective shaft members 4 are driven by the elastic restoring force of the connected springs 7, and are slid to the folded end portions 214 of the arcuate guiding holes 212. Rotating the shaft member 4 relative to the lower turntable 2 and the upper support frame 3, and simultaneously driving the adjacent blades 6 to the spring-retracting position through the belt member 8 and the shaft members 4 (see FIG. 4 and Figure 5).

It is worth mentioning that the upper support frame 3 is detachably disposed on the rotating base 12, and the number and arrangement design of the pivoting regions 21 of the lower turntable 2 are arbitrarily adjusted. The number of the support frames 3 is set, so that the assembly structure between the components can be combined into a plurality of ceiling fans of various blade numbers and combinations without redesigning.

More importantly, since the belt member 8 has flexibility, in accordance with this, in addition to the gear portion 43 that can be engaged with the fourth number of the shaft members 4, the blades 6 can be simultaneously engaged and retracted. The function of the shaft member 4 can also be engaged with different numbers and spatial distributions, and the rotation of the shaft members 4 can be simultaneously driven to achieve the synchronous expansion and contraction of the blades 6 connected to the upper side.

In summary, the blades 6 of the ceiling fan of the present invention can be synchronously unfolded, and the blades 6 can be synchronously rotated between a spring-retracting position and a deployed position by the rotation of the shaft member 4 and the belt member 8, respectively. Not only the transmission member is simple, but the ring transmission mode is smoother than the conventional link transmission, and is applicable to the deployment fan of various blade numbers and combinations. In addition, the upper support frames 3 are detachably disposed on the rotating base 12, and the number of the upper support frames 3 and the distance between them can be arbitrarily adjusted. Therefore, the assembly structure between the components of the present invention is not It needs to be redesigned, and only the lower turntable 2 having the corresponding number and spatial arrangement of the pivoting areas 21 can be replaced, and the ceiling fans of various blade numbers and combinations can be assembled. Furthermore, the blades 6 do not overlap each other during the rotation between the spring-retracting position and the deployed position, so that the blades 6 do not have the problem of noise and wear due to collision friction, and In addition, the shaft members 4 are pivoted up and down respectively. The disk 2 and the upper support members 3, therefore, the shaft members 4 do not have the problem of left and right yaw rotation, thereby improving the stability of the synchronous rotation and the service life of the device, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

1‧‧‧ drive

11‧‧‧Spinning base

2‧‧‧ Lower turntable

21‧‧‧ pivot zone

213‧‧‧Expanded end

214‧‧‧Close end

3‧‧‧Upper support

4‧‧‧ shaft parts

43‧‧‧ Gear Department

44‧‧‧Limited arm

441‧‧‧Bump

5‧‧‧ leaf stand

6‧‧‧ leaves

8‧‧‧Transmission belt parts

9‧‧‧Lighting plate

10‧‧‧shade

L‧‧‧ axis

Claims (9)

A ceiling fan capable of synchronously unfolding and folding, comprising: a driving device comprising a rotating base; a lower turntable disposed on the rotating base and comprising a plurality of pivoting regions spaced around the axis thereof, the pivoting Each of the upper support frames has a pivoting hole; a plurality of upper support frames are detachably disposed on the circumferential side of the rotating base, and are located above the lower turntable, respectively corresponding to the pivoting regions; and the plurality of rotating shaft members are respectively pivoted The pivoting area of the lower turntable includes an upper end portion, a lower end portion pivotally disposed at a pivot hole of the corresponding pivoting portion, and a gear portion, wherein the upper end portions of the rotating shaft members are respectively pivoted The upper support frame; a plurality of springs respectively having a first end and a second end oppositely disposed, the first ends respectively connecting the rotating shaft members, the second ends connecting the lower turntable; a driving belt member, Surrounding the shaft members and engaging with the gear portions of the shaft members; a plurality of blades are respectively driven by the shaft members, and each of the blades is connected to an upper end portion of the corresponding shaft member; wherein, the rotating base Rotating and quiet When the state changes, the belt member cooperates with the shaft members to synchronously drive the blades, so that the blades rotate with the shaft members as a shaft center between a deployed position and a spring folding position. The springs respectively provide the shaft members to rotate the blades to the springs. The recovery power of the position. The blade of claim 1 can be synchronously unfolded and folded, wherein each pivoting area of the lower turntable further has an arcuate guide hole, and each of the arcuate guide holes has an unfolded end portion and a receiving end oppositely disposed The end portion of each of the shaft members further includes an outwardly extending limiting arm portion, each of the limiting arm portions having a protruding post that is slidably disposed in the arcuate guiding hole of the corresponding pivoting region, and the blades rotate synchronously When the spring is in the retracted position, the protruding posts of the limiting arm portions of the rotating shaft members are respectively located at the folding ends of the arcuate guiding holes, and when the blades are synchronously rotated to the deployed position, the rotating shaft members are The studs of the limiting arm are respectively located at the unfolded ends of the arcuate guiding holes. The blade of claim 2 can be synchronously unfolded and folded, wherein the first ends of the springs are respectively connected to the studs of the limiting arm portions of the rotating shaft members, and the second ends of the springs are connected to the lower end. The turntables are respectively located on one side of the arcuate guide holes adjacent to the folding end portions, whereby the springs respectively provide the rotating shaft members to slide the studs of the limiting arm portions to corresponding positions The restoring force of the folded end of the curved guide hole. The vane according to any one of claims 1 to 3, wherein the vane can be simultaneously unfolded, wherein the belt member is a timing belt. The blade according to claim 4 is capable of simultaneously unfolding and collapsing the ceiling fan, and further comprises a plurality of blade frames, the blade frames respectively connecting the blades to the upper end portions of the shaft members. The blade according to claim 1 can synchronously unfold the collapsed ceiling fan, wherein the blades do not overlap each other when the blades are in the spring-retracted position. A ceiling fan according to claim 6, wherein the blade can be simultaneously unfolded and collapsed, Wherein, when the blades are in the spring-retracting position, the blades are matched in a disk shape. The blade according to claim 1 can synchronously unfold the folded ceiling fan, and further comprises a lamp panel disposed on the lower turntable and provided for a lamp. The ceiling fan according to claim 8, wherein the blade is synchronously unfolded, and further comprises a lamp cover disposed on the lamp panel and covering the lamp.