JPH0362919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an electric fan that can swing vertically and horizontally.

(b) Prior Art Conventionally, electric fans that perform horizontal and vertical oscillations, and a curved trajectory oscillation that simultaneously performs both oscillations are disclosed in Japanese Utility Model Publication No. 32-12865, Japanese Unexamined Patent Publication No. 116972-1980,
There is one disclosed in Japanese Unexamined Patent Publication No. 57-20587.
The electric fan described in Japanese Utility Model Publication No. 32-12865 has a horizontal swing mechanism and a vertical swing mechanism that mesh with a worm formed on the rotating shaft of an electric motor, and both mechanisms are a combination of gears, joints, levers, etc. It is something. As a result, the bidirectional oscillation mechanism becomes complicated, and the load on the electric motor becomes larger compared to an electric fan having only a left and right oscillation mechanism. Further, as the electric motor oscillates up and down, the distance from the motor supporting portion changes, and a special mechanism is required for the transmission portion of the oscillation mechanism. There is an electric fan described in Japanese Patent Application Laid-Open No. 116972/1983 as an electric fan improved in the above-mentioned points. The electric fan has a U on the top of the neck piece.
A letter-shaped arm is pivotally supported, and a fan main body is pivotally supported between both ends of the arm, and a small motor is housed in a recess on the upper surface of the neck piece, and between the crank of the small motor and the arm and within the fan main body. The crank and arm of the provided fan motor are connected by connecting rods, and the fan motor swings vertically, the small motor swings horizontally, and a curved trajectory is created by combining both swings. It is also designed to be able to swing its head. Therefore, smooth swinging can be performed without requiring any special mechanism. However, since the small motor is housed in the neck piece, there is a drawback that the neck piece is larger than that of conventional electric fans. Furthermore, the arms, cranks, and connecting rods are exposed on the side of the main body of the electric fan, which is unfavorable in terms of appearance, and when used near a window, there are drawbacks such as curtains and the like getting caught in the connecting rods. Furthermore, since at least one of horizontal and vertical oscillations was performed by the output shaft obtained by decelerating the rotational force of the electric motor, stopping had to be performed by a clutch mechanism, and the oscillation stop control mechanism was It was complicated.

Furthermore, the electric fan described in JP-A-57-20587 uses, in addition to the fan motor, an oscillation motor for left and right oscillations and an elevation angle changing motor for up and down oscillations. was placed inside the stand that supported the neck piece, which had the disadvantage that the stand part became large.

(C) Problems to be Solved by the Invention The present invention solves the problem in that the blades can be rotated up and down, regardless of the rotating state of the blade.
The object of the present invention is to provide a fan which can smoothly perform left and right oscillation control, has a simplified structure, and is made compact by downsizing the main body of the fan and a neck piece part.

(d) Means for Solving the Problems In order to solve the above problems, the electric fan of the present invention includes a neck piece part that is pivotally supported on a fan stand, and a support that is supported by the neck piece part so as to be swingable in the left and right direction. a motor supported by the support so as to be swingable in the vertical direction; a blower blade rotatably driven by the motor; and a blower blade formed integrally with the support and extending behind the motor. a left and right swinging link having one end pivotally supported on the neck piece portion, and a left and right swinging link mounted on the mounting plate at a rear position of the electric motor and to which the other end of the left and right swinging link is connected. a motor device, a vertical oscillating link having one end pivotally supported on one of the electric motor and the mounting plate, and a vertical oscillating link attached to the other of the motor and the mounting plate, the other end of the vertical oscillating link being connected. A motor device for vertical oscillation, which is attached to a support plate attached to the rear of the electric motor, and covers the motor, a motor device for lateral oscillation, a lateral oscillation link, a motor device for vertical oscillation, a vertical oscillation link, etc. The present invention is characterized in that the motor device for horizontal oscillation and the motor device for vertical oscillation are arranged side by side behind the electric motor.

(E) Effect With the above configuration, in addition to the electric motor for driving the rotation of the blower blade, a dedicated vertical oscillation motor device and a lateral oscillation motor device are used for vertical oscillation and horizontal oscillation, respectively. The vertical and horizontal vibration stops can be performed independently using an electric switch, and the vertical vibration and horizontal vibration can be performed separately from the electric motor without putting a burden on the electric motor.

Furthermore, since the motor device for vertical oscillation and the motor device for lateral oscillation are arranged side by side at the rear of the electric motor, the required dimension in the rear direction of the electric motor is shortened, the rear cover can be small, and the distance between the motor and the mounting plate is reduced. Since the vertical oscillation link is pivotally supported on one side, and the vertical oscillation motor device is attached to the other side of the electric motor and the mounting plate, the vertical oscillation link does not come out from the rear cover, and the main body of the fan is The neck piece can be made smaller, and since the swinging motor device is not incorporated in the net piece, the neck piece can be made smaller.

(F) Embodiments The present invention will be described below based on embodiments shown in FIGS. 1 to 5.

The electric fan includes a box-shaped base made of synthetic resin with a support 1 protruding from it, a neck piece part 2 that is pivoted to the forked part of the tip of the support 1 so as to be able to adjust the angle of elevation, and the fan that is supported by the neck piece part 2. Consists of subject 3. The electric fan main body 3 includes an electric motor 5 supported and pivoted in a vertically swingable manner at the tip of a support 4 which is pivotably supported on the neck piece portion 2 in a horizontally swingable manner. A blower blade (not shown) attached to the rotating shaft 6 of the electric motor 5, a front cover 7 attached to the front of the electric motor 5, a rear guard 9 attached to the front cover 7 with a nut body 8, and the rear A front guard (not shown) that covers the blade together with the guard 9, and a swinging mechanism that is installed at the rear of the electric motor 5;
The support 4 consists of a cup-shaped rear cover 10 that covers the electric motor 5 and the swinging mechanism. It consists of a support plate 4b. The pivot plate 4b has a substantially U-shaped cross section, and bearings are formed at both ends thereof. A shaft support plate 11 having a substantially U-shaped cross section is fixed to the lower surface of the electric motor 5 by screws, welding, or the like. Both tips of the pivot plate 11 and the tip bearing part of the pivot plate 4b are brought into contact and rotatably connected by screws 12, rivets, or the like.
Therefore, the electric motor 5 can swing vertically about the screw 12 and horizontally about the pivot 4a.

A mounting plate 13 extends rearward from the pivot plate 4b. In this embodiment, the pivot plate 4b and the mounting plate 13 are integrally formed by pressing and molding a single sheet metal. A left-right oscillating motor device 14 is fixed to the end of the mounting plate 13 with screws 15 at a rear position of the electric motor 5 . A cam body 17 is mounted on the drive shaft 16 of the motor device 14 that protrudes from the back surface of the mounting plate 13. The cam body 17 has one end pivotally supported on the neck piece portion 2, and the other end of the left and right swing link 18 is pivotally supported. Therefore, when the lateral head vibration motor device 14 is driven and the cam body 17 rotates, as shown in the left and right neck vibration diagram shown in FIG.
The head is oscillated at an angle of θ degrees about the pivot 4a. FIG. 4 is a diagram, and point A in the figure shows the pivot 4a, point B shows the pivot of the link 18 to the neck piece, point C shows the pivot of the link 18 to the cam body 17, and point D indicates the drive shaft 16.

A support plate 19 having a substantially U-shaped cross section is fixed to the rear surface of the electric motor 5. Each surface of the support plate 19 is a vertical surface, and a moch device 20 for vertical swinging is attached to the surface extending in the front-rear direction at the intermediate portion thereof.
It is mounted at a rear position of the electric motor 5 so as to be juxtaposed with the left-right oscillation motor device 14 in the left-right direction with respect to the electric motor 5. A cam body 22 is mounted on the drive shaft 21 of the vertical swing motor device 20. The other end of a vertical swing link 23 whose one end is pivotally supported by the mounting plate 13 is supported on the cam body 22 . Therefore, the vertical swing motor device 20
is driven and the cam body 22 rotates, as shown in the vertical neck vibration diagram shown in FIG.
Shake the head at an angle of α degrees around .

The above-mentioned left and right swing and up and down swing can be performed individually or simultaneously. Further, by controlling the speeds of both the motor devices 14 and 20, it is possible to perform variable swinging. Furthermore, when controlling the speed of both motor devices 14 and 20, by always determining the initial position and controlling with a microcomputer or the like, it is possible to perform oscillation operation that draws a free curve.

The left and right oscillating motor device 14 and the vertical oscillating motor device 20 are arranged side by side at the rear of the electric motor 5, so that the required dimension in the rear direction of the electric motor 5 can be shortened, and therefore the rear cover 10 may be small, and one end of the vertical oscillating link 23 can be connected to the rear of the electric motor 5 or to the mounting plate 1 as in this embodiment.
By attaching the vertical oscillating motor device 20 to the rear of the electric motor 5 or the other side of the mounting plate 13 to which the vertical oscillating link 23 is connected, the oscillating link 23 is not disposed on the side of the electric motor 5 and does not come out from the rear cover 10, so that the fan main body 3
can be made more compact, and the neck piece 2 is also equipped with a motor device 14 for horizontal oscillation and a motor device 20 for vertical oscillation.
Since it is not necessary to incorporate the neck piece portion 2, the size of the neck piece portion 2 can also be reduced, and a compact electric fan can therefore be obtained.

In addition to the electric motor 5 for rotationally driving the blower blades, there are also a vertical oscillation motor device 20 and a lateral oscillation motor device 1 dedicated for vertical oscillation and horizontal oscillation, respectively.
4, it is possible to independently stop the vibration of the vertical and horizontal directions using an electric switch.
The curved trajectory oscillation, which freely combines vertical oscillation, lateral oscillation, and both oscillations, can be freely controlled separately from the electric motor 5 without putting a burden on the electric motor 5. Therefore, the blower blade rotates smoothly regardless of the neck vibration operation of the fan main body 3, and the neck vibration operation state does not change depending on the strength of the rotation of the blower blade.

(G) Effects of the Invention Since the present invention uses a motor device for vertical oscillation and a motor device for lateral oscillation in addition to an electric motor, the vertical and lateral oscillation can be stopped independently using an electric switch. At the same time, vertical oscillation and lateral oscillation can be performed freely and smoothly separately from the electric motor without putting a burden on the motor. Since the rear cover is placed side by side with the rear cover, the rear cover can be small.
In addition, since the vertical swing link is pivotally supported on either one of the electric motor and the mounting plate, and the vertical swing motor device is attached to the other of the motor and the mounting plate, the vertical swing link does not come out from the rear cover. Therefore, the main body of the electric fan can be made smaller, and the neck piece portion can also be made smaller, so that it is possible to obtain a compact and easy-to-use electric fan.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of the main part of the electric fan of the present invention, Fig. 2 is a -sectional view of Fig. 1, and Fig. 3 is a -sectional view of Fig. 1.
A sectional view, Figure 4 is an explanatory diagram of the operation in the left and right swinging state,
FIG. 5 is an explanatory diagram of the operation in the vertical swinging state. 2... Neck piece, 4... Support, 5... Electric motor, 13... Mounting plate, 14... Left and right swing motor device, 18... Left and right swing link, 20... Up and down swing motor device, 23... Vertical swing link.

Claims (1)

[Claims] 1. A neck piece that is pivotally supported on a fan stand, a support that is supported by the neck piece so that it can swing in the left and right directions, an electric motor that is supported by the support so that it can swing in the vertical direction, and a a mounting plate formed integrally with the support and extending to the rear of the electric motor; a left-right oscillating link having one end pivoted to the neck piece; and the mounting plate. A left and right oscillation motor device is attached to a position behind the electric motor of the plate and the other end of the left and right oscillation link is connected, and a vertical oscillation motor device whose one end is pivoted to either the motor or the mounting plate. a link, a vertical oscillation motor device that is attached to the other of the electric motor and the mounting plate and to which the other end of the up and down oscillation link is connected; It consists of a rear cover that covers the left and right oscillation motor device, the left and right oscillation link, the vertical oscillation motor attachment, the up and down oscillation link, etc., and the left and right oscillation motor device and the vertical oscillation motor device are connected to A fan characterized by being placed behind an electric motor.