JPS61226599A - Fan - Google Patents

Abstract

PURPOSE:To reduce the projecting amount of an output shaft and make an oscillation constituting mechanism a thin form by installing a board body to the output shaft of an oscillating motor, in an eccentric position, fitting the ring part of an oscillating link over the outer peripheral part of said board body, and slidingly rotating said board body along the mounting board of said motor. CONSTITUTION:A right-left oscillating motor device 6 consists of a right-left oscillating motor 62 which is fixed to the top surface of the extended part 43 of a mounting board 4 with a screw (unshown), an output shaft 63 which projects out through a through hole provided on said extended part 43, a disc body 64 which is mutually unrotatingly connected to the output shaft 63 at an eccentric part, and an oscillating link 66 on one end of which a ring part 65 which is slidably fitted over the periphery of the disc body 64, is formed. Due to such a construction, the rotation of the rotary shaft 63 makes said disc body 64 slidingly rotate along the mounting board 4 of the oscillating motor 62, preventing a force which tends to deflect the disc body 64 from acting, reducing the projecting amount of the output shaft 63, and enabling an oscillation constituting mechanism to be constructed in a thin form.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an electric fan equipped with a device that uses a motor to oscillate left and right, up and down, or left and right and up and down.

(b) Prior art As a technology prior to the present invention, Japanese Utility Model Publication No. 57-12233 describes a fan J! that uses a motor to oscillate from side to side. There are two types of electric fans: the Lm swinging device, and the electric fan described in Japanese Patent Application Laid-Open No. 59-28093, which uses a motor to swing the head both left and right and up and down. Both of the swinging devices described in these publications have a cam body connected to the output shaft of a swinging motor in a non-rotatable manner, and one end of the swinging link is pivotally supported on the lower surface of the end of the cam body. . Since the oscillating link is pivotally supported on the lower surface of the end, the cam body must be formed to have sufficient strength so as not to bend. Therefore, by increasing the thickness of the cam body to obtain strength, the amount of protrusion from the mounting plate of the oscillating motor is large.
This has become a problem when trying to downsize the fan head.

Particularly, in the case of a fan that oscillates horizontally and vertically, as disclosed in Japanese Patent Application Laid-Open No. 50-28093, it is necessary to bend the mounting plate so that it is positioned behind the electric motor to form a storage space for the cam body.

(c) Problems to be Solved by the Invention The present invention provides an electric fan in which the oscillating mechanism attached to the output shaft of the oscillating motor is made thinner.

(d) Means for Solving the Problem The present invention provides a device equipped with a oscillating motor device that causes the head of the fan to vibrate independently of the electric motor that drives the blower blades. A oscillating motor mounted on a mounting plate with its shaft protruding from the other surface, a plate body that is unrotatably connected to the output shaft at an eccentric portion, and a plate body that is slidably fitted around the plate body. This problem is solved by means of forming a swing link with a ring formed at one end.

(E) Function The present invention includes a plate mounted on the output shaft of the oscillating motor at an eccentric position, a ring portion of the oscillating link being fitted onto the outer periphery of the plate, and a ring portion of the oscillating link being fitted along the mounting plate of the oscillating motor. By sliding and rotating the disc body, it is possible to prevent a force that would tend to bend the disc body from acting, and the amount of protrusion of the output shaft can also be reduced.

1) Embodiment The first embodiment shown in FIGS. 1 to 10 is an example of an electric fan that oscillates left and right and one downward, and the first embodiment shown in FIGS. 11 to 13 shows only the essential parts of the present invention. Embodiment 2, Embodiment 3 in FIG. 14, Embodiment 4 in FIG. 15, and Embodiment 5 in FIG. 16.
Example, 6th example in FIGS. 17 and 18, and 19th example
The present invention will be explained based on the seventh embodiment shown in the figure.

A first example will be explained.

The electric fan (1) has a synthetic resin stand (2) incorporating a motor control switch (10), an operation control timer (11), and an oscillation changeover switch (12), and a support (13) of the stand (2). A slide pipe (14) that is inserted and supported so that it can be raised and lowered, and an intermediate connecting body 15 that has a bifurcated part that is rotatably supported at the tip of the slide pipe (14).
), a neckpiece (16) that is supported on the forked part of the intermediate connector (15) so as to be able to adjust its elevation angle; and a fan main body ( 3).

The main body of the electric fan (3) includes a mounting plate (4) having a vertical support shaft (41) inserted into the neck piece (16), and instructions provided upright on both sides of the front of the mounting plate (4). An electric motor (31) rotatably supported by a rod (42);
a front cover (32) that can be attached to the front of the engine; a rear guard (33) that can be attached to the front cover (32) with a nut that is screwed into the cylindrical portion of the front cover (32); ! (31) A blower blade (34) that can be attached to the rotating shaft with a spinner, and the rear guard (34) that covers the blower blade (34).
a front guard (35) connected to the outer edge of the motor (33), a vertical swing motor device (5) that can be attached to the upper rear surface of the electric motor (31), and a rear extension part (43) of the mounting plate (4). a left-right oscillating motor device (6) attached to the motor;
31), a cup-shaped rear cover (36) that covers the vertical oscillation motor device (5), the left-right oscillation motor device (6), etc. The electric fan main body (3) swings in the left and right direction by rotating around the support shaft (41), and the electric motor (31) rotates around the pivot shaft of the support rod (42). By doing this, you can swing the head in the vertical direction.

Figure 1 is a right sectional view showing the area around the electric motor (31) of the fan Jolt machine body (3), Figure 2 is a sectional bottom view showing the same part as Figure 1, and Figure 3 is the same part as Figure 1. Figure 4 is a cross-sectional rear view showing the same part as No. 115U, Figure 5 is a fan! (1) is a perspective view. FIG. 6 is an enlarged sectional view of the left-right oscillating motor device (6), and FIG. 9 is an exploded perspective view of the same portion. Figure 7 shows the electric motor (31) of the main fan (3) rotated downward by the maximum angle β degrees.
A side sectional view showing the peripheral part, Figure 8 shows the maximum angle of 4 in the upward direction.
FIG. 7 is a side sectional view similar to FIG. 7 in a state in which it has been rotated by an angle;

A member that supports the neck piece (16) vertically and upwardly is formed by the stand (2), the slide pipe (14), and the intermediate connector (15), but this is not particularly limited. For example, in the case of a tabletop M type or a wall-mounted fan, a bifurcated portion can be formed at the tip of the column (13) of the stand (2) to support the neckpiece (16).

The vertical oscillation motor device (5) includes a vertical oscillation motor (21) fixed with a screw to a support plate (37) fixed with a screw to the upper center of the rear surface of the electric motor (31), and the support plate. A cam body (37) is attached to the output shaft (22) which projects horizontally to the right from the lower insertion hole formed in
23) and a vertical U-swing link (24), one end of which is pivotally supported on the end of the cam body (23).The other end of the vertical swing link (24) is connected to the mounting plate (4). It is pivoted to a pivot support (44) formed on the right side. The vertical swing motor (21
) rotates, the vertical swing link (24) and the cam body (
23), the electric motor (31)
The support rod (42) swings downward with the tip pivot part as the center and the swing state shown in FIGS. 7 and 8 is set as the maximum vertical swing angle. 11 and as is clear from FIG. 3, it is located on the lower rear side of the electric motor (31) of the mounting plate (4). The vertical oscillation motor (21) is mounted at the center of the rear surface of the electric motor (31) as shown in FIGS. 3 and 4, so that the electric motors (31) on the left and right sides of the vertical oscillation motor (21) > A space is formed at the rear. The cam body (23) and the vertical swing link (
24) is stored. Although not shown in the left space, a capacitor for driving the electric motor (31) is housed. The condenser can be fixed with screws to a mounting piece (38) formed integrally with the support plate (37). The support plate (3
7) The screw may be screwed into the case of the electric motor (31) from the side, but as in this embodiment, the screw is inserted into the case of the electric motor (31)
) may be screwed into the support plate (37) from the inner side of the case. By fixing the support plate (37) with a screw as in this embodiment, even if the length of the screw is somewhat long, the tip of the screw will not contact and damage the winding of the electric motor (31). A portion of the rear edge of the support plate (37) is extended and bent to form a bent piece (39) into which a screw for attaching the rear cover (36) is inserted.

A spring body (
7) is being constructed. In this embodiment, the spring body (7) is constructed by hooking its end portions between the bent piece (39) and the rear end of the extension portion (43). The spring body (7) has a spring force that compensates only for the difference in weight between the front and rear guards (35) (33) located in front of the pivot portion of the support rod (42) and the blower blade (34), etc. The spring body (7)
The balance point is set near the center of the vertical swing angle of 4 degrees and β degree, and the force required for upward movement and the force required for downward movement are approximately equal. It is set to be constant and smooth vertical swing. Note that the spring body (7) uses a fill spring, but when used, the spring force of the fill spring is approximately constant in the range of expansion and contraction by using a characteristic range that is approximately constant in the range of vertical swing. A certain rotational force can be obtained. The spring body (7) may be a spiral constant force spring used to bias the slide/cive (14) of the electric fan (1) upward.

The left-right swing motor device (6) includes a left-right swing motor (62) fixed to the upper surface of the extension part (43) of the mounting plate (4) with a screw (61), and a left-right swing motor (62) fixed to the top surface of the extension part (43) of the mounting plate (4). an output shaft (63) that protrudes through a drilled through hole (45); a disc body (64) that is unrotatably connected to the output shaft (63) at an eccentric portion; A left-right oscillating link having a ring portion 65) slidably fitted around the plate body (64) formed at one end, and the other end pivotally supported by the neck piece (16).
(66), and a protrusion (67) that is unrotatably connected to the output shaft (63) and is coaxial with the output shaft (63).
and the mounting plate (4).
) and pivotally supports the protrusion (67).
). The extension part (43) is connected to the electric motor (
31) side, and the disc body (64), the ring part (65), and the removal stopper (65) are installed within the step.
68), and the protrusion (67) protrudes from the step.

The protruding portion of the output shaft (63) from the mounting plate (4) is D.
A cant portion is formed, and a D hole (70) is formed in the disc body (64). The mounting plate (4) of the disc body (64)
The rotation of the output shaft (63), which forms a flange (71) on the peripheral edge portion that slides into contact with the disk body (
64) is rotated eccentrically. In this embodiment, the linear portion of the hole forming hole (70) is formed so as to face the circular arc of the disc body (64), so that the output as shown in FIG. Distance P between the center of the shaft (63) and the center of the disk body (64)
The disk body (6
4> diameter can be set small. As a result, the diameter LD of the locus drawn by the disc body (64) can be made smaller, the movable range of the left and right swing links (66) can be reduced, and the width and rearward protrusion of the extension part (43) can be reduced. It can be made smaller and more compact. In addition, since the disk body (64) has a small diameter, the ring portion (65)
The sliding resistance between the disk body (64) and the disk body (64) is reduced, and smooth operation can be achieved. Furthermore, a protrusion is formed on the surface of the disk body (64) that slides on the mounting plate (4) to reduce sliding resistance, thereby reducing the sliding contact area and ensuring smooth rotation. I have to.

The ring part removal stopper 68) is formed of a disc having the same outer diameter as the flange part (71) of the disc body (64), and the disc body (64) of the left and right oscillating link (66) ) to prevent it from falling off. The protrusion (67) is connected to the output shaft (63).
It is formed by a cylinder whose center is the same as the center of rotation. The protrusion (67) is formed with a D-shaped member (72) into which the output shaft (63) is fitted. Therefore, the removal stopper (6
8) rotates eccentrically at the same time as the disk body (64), but the protrusion (67) rotates but does not rotate eccentrically. The bearing body (69) is made of sheet metal, and forms a sliding surface for the removal stopper (68) and also serves as a contact surface for the protrusion (67).
) is formed with a bearing hole (73) that supports the shaft.

The bearing body (69) is screwed (74) into the mounting plate (4).
It is fixed at. Since the bearing body (69) is fixed to the mounting plate (4), the output shaft (63) is connected to the bearing on the left-right oscillating motor (62) side and the bearing hole (73) of the bearing body (69). It can be pivoted at. Therefore, a force that tends to deflect is applied to the output shaft (63) due to the crank movement of the left and right swing links (66) due to the rotation of the disc body (64), but the output shaft (63) can be reliably supported vertically without deflecting. It is.

In this embodiment, the output shaft (63) and the disc body (6
4) and the removal stopper 68) are molded from synthetic resin. In addition, the mounting plate (4) and the disc body (64), the disc body <
64), left and right swinging mechanism 66) and removal stopper (68)
The output shaft (6) is made of oil-containing synthetic resin in order to reduce the sliding resistance between the removal stopper (68) and the bearing (69).
3), the disk body (64), and the removal stopper body (68) are preferably formed.

Next, second to seventh embodiments will be described. However, for the same structural parts as in the first embodiment, the description of the first embodiment will be used. Therefore, regarding the second to seventh embodiments, only the characteristic portions of each embodiment will be illustrated and explained.

A second embodiment shown in FIGS. 11 to 13 will be described.

In this embodiment, the diameter of the disc body (64) is made smaller, and the flat part of the output shaft (63) has the same curvature as the outer circumferential arc surface of the disc body (64). A D hole (70) is formed so that the cut surface of the output shaft (63) is the outer peripheral surface of the disc body (64). The projection (67) protrudes because the removal stopper (68) has the same diameter as the disc (64). The output shaft (63
) from the center of rotation of the disc body (64) to the center of the disc body (64) is the same as in the first embodiment, but the diameter d of the disc body (64)
has a smaller diameter by the dimension q shown in FIG. 1O. The pin (80) protruding from the removal stopper (68) is used to prevent the disk body (64) from shaking.

The third embodiment of No. 14A is the bearing body (6
Remove the screw (7) and screw it into the stopper body (68).
This is to prevent the removal stopper 68) from coming off at the head of 5).

The fourth embodiment shown in Fig. 15 is a mounting plate (4) for a disc body (64).
A flange portion (76) is formed on the periphery of the surface that does not come into sliding contact with the outer flange portion (76) to prevent the ring portion (65) from being removed, and the output shaft (63) of the disc body (64) is To remove the screw from the stopper (7
7) is performed on the head.

In the third and fourth embodiments described above, the output shaft (63) is a cantilevered shaft support, so this is a particularly useful implementation structure when the output shaft (63) is formed of a metal rod with little deflection. be.

The fifth embodiment in FIG. 16 is a ring part (65
) and the mounting plate (4), which is expected to generate metallic noise,
A claw body (78) is formed on the side periphery of the mounting plate (4) of the output shaft (63) to prevent direct contact, and a claw part (79) is formed at the tip of the output shaft (63) to prevent the disk body ( 64) is for stopping.

17 and 18 show a sixth embodiment. This embodiment eliminates the protrusion (67) of the bearing body (69) and removal stopper (68) in the first embodiment, and Removal stop body (
The claw body (81) formed in 68) is connected to the engagement portion <82) formed on the output shaft (63) and the engagement portion <82) formed on the disc body (64).
3).

The seventh embodiment shown in FIG. 19 will be explained. In this embodiment, in order to reduce the sliding resistance in the first embodiment, a recess (84) is formed in the disc body (64).
In this embodiment, the recess (84) is formed so as to open also at the outer periphery of the disc body (64), so that the lubricating oil is stored in the annular part (65). supply will be carried out smoothly. As the lubricating oil, highly viscous grease or the like is suitable to prevent dripping.

In addition, each of the above-mentioned embodiments shows only the case where a disk body (64) is used as the plate body, but this is not particularly limited, and the corners of polyhedrons such as triangles and quadrilaterals may be formed into circular arcs. , it may have a shape inscribed in the ring portion (65) of the oscillating link (66). In this case, the output shaft (63) is connected at a portion close to one corner of the polygon.

(G) Effects of the Invention The present invention provides a thin design by attaching a disc body to the output shaft and fitting the ring portion of the oscillating link around the disc body to reduce the amount of protrusion of the output shaft. It is possible to form a small oscillating device using the oscillating device, which has the effect of making the electric fan more compact.

[Brief explanation of drawings]

1 to 10 show a first embodiment of the present invention, in which FIG. 1 is a right sectional view of the main part, FIG. 2 is a sectional bottom view of the main part,
Fig. 3 is a cross-sectional plan view of the main part, Fig. 4 is a cross-sectional rear view of the main part, Fig. 5 is a perspective view, Fig. 6 is a cross-sectional view of the main part of the left and right six-stroke motor device, and Fig. 7 shows the maximum tilting state. 8 is a right sectional view of the main part showing the most upright position, FIG. 9 is an exploded perspective view of the left and right oscillation motor device, FIG. 10 is a bottom view of the same, and FIGS. 11 to 1
3 shows the second embodiment, FIG. 11 is a sectional view of the left and right oscillating motor device, FIG. 12 is a sectional plan view of the removal stopper, FIG. 13 is an exploded perspective view, and FIG. 14 shows the third embodiment, FIG. 15 shows the fourth embodiment, FIG. 16 shows the fifth embodiment, and FIG. FIG. 18 is an exploded perspective view of the left-right oscillation motor device of the sixth embodiment, and FIG. 19 is an exploded perspective view of the left-right oscillation motor device of the seventh embodiment. (3)...Fan main body, (4)...Mounting plate, (6)
... Left and right 6-swing motor device, (31) ... Electric motor, (
34)...Blower blade, (62)...Right and left swing motor, 63)...Output shaft, (64)...Disc body (plate body), (65)...Ring part , (66)...Left and right swing links.

Claims (1)

[Claims] 1. In a device equipped with a head vibration motor device that causes the head of the fan to vibrate separately from the electric motor that drives the blower blades,
A oscillating motor that mounts the oscillating motor device on a mounting plate with the output shaft protruding from the other surface, a plate that is unrotatably connected to the output shaft at an eccentric portion, and a periphery of the plate. An electric fan formed of an oscillating link having a ring portion formed at one end thereof to be slidably fitted into the oscillating link.