JPH0440557B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric fan that can swing vertically and horizontally.

Conventionally, as a fan that performs both horizontal and vertical oscillations at the same time on a curved trajectory, there have been published Publications No. 32-12865, No. 39722,
There is something disclosed in Japanese Patent Publication No. 53-116972.

The electric fan described in Publication No. 32-12865 and Publication No. 39722 of Utility Model Publication has a left-right oscillation mechanism that engages with a worm formed on the rotating shaft of an electric motor, and a vertical oscillation mechanism. It is a combination of gears, joints, levers, etc. Therefore, the double 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. Furthermore, when the electric motor oscillates up and down, the distance from the motor support changes, so a special mechanism is required for the transmission part of the lateral oscillation mechanism.

There is an electric fan described in Japanese Patent Application Laid-Open Publication No. 116972/1983 as an electric fan that improves on the drawbacks of the above-mentioned advertisement.
This electric fan oscillates in the vertical direction using the electric motor that drives the fan, and oscillates in the horizontal direction using a small motor housed in the neck piece, and also oscillates on a curved trajectory by combining both oscillations. This is what I did to get it.

However, by housing a small motor for left and right oscillation in the neck piece, there is a drawback that the neck peak becomes large. In addition, on the side of the electric fan,
The arms, cranks, and connecting rods that make up the vertical oscillation mechanism were exposed, which was not pleasing in terms of appearance, and when used near a window, it was dangerous in practice, as curtains and the like could get caught in the connecting rods.

Furthermore, fans with a vertical oscillation function such as those described in the above-mentioned publications are designed to prevent the guard from coming into contact with the neck piece when the main body of the fan faces downward, compared to fans without an up-and-down oscillation function. It is necessary to support the neck piece on the back side of the main body of the electric fan, but with this configuration, the front side becomes heavier than the rear side with respect to the support part of the neck piece of the electric fan body. Therefore, the weight balance deteriorated, and there were cases in which smooth left and right swinging of the head could not be performed.

In order to eliminate this weight imbalance, it is possible to install a balance weight as shown in Japanese Utility Model Publication No. 54-3901, but this requires a fairly large balance weight, which increases the weight of the fan. It has drawbacks such as being inconvenient to carry.

The present invention was made in view of the above-mentioned drawbacks, and an object of the present invention is to improve the weight balance of the fan main body in a fan having vertical and horizontal oscillation functions, and to provide a fan in which the fan main body and the neck piece are configured compactly. do.

In order to solve the above-mentioned problems, the present invention provides a neck piece that is supported on an electric fan stand so as to be able to adjust the angle of elevation, a U-shaped support that is pivotally supported by the neck piece, and a tip part of the support that can be moved vertically. an electric motor that is pivotally supported by the motor and rotates the blower blade; a vertical oscillation mechanism disposed at the rear of the electric motor; and a left-right oscillation motor device that is attached to a mounting plate extending rearward from the support. and a cover that covers the support, the electric motor, the vertical oscillation mechanism, and the lateral oscillation motor device, and the lateral oscillation motor device and the lateral oscillation motor device are arranged behind the electric motor in a direction substantially perpendicular to the axis of the motor. By arranging the balance weights in parallel,
To obtain an electric fan that oscillates horizontally and vertically and has the same appearance as an electric fan that only oscillates left and right.

The present invention will be explained below based on the illustrated embodiments.

Reference numeral 1 designates an electric fan of the present invention, which includes a stand 4 consisting of a base 2 and a support 3 protruding from the base, and a slide pipe 5 inserted and supported by the support 3 so as to be movable up and down.
a connecting body 6 that is rotatably fitted onto the upper part of the pipe; a neck piece 7 that is pivotally supported so that the elevation angle of the connecting body 6 can be adjusted; and a neck piece 7 that is rotatably supported on the neck piece 7. It consists of a fan main body 8.

The fan main body 8 is sandwiched between a substantially U-shaped support 10 made of sheet metal having a vertically extending pivot 9 inserted into a bearing hole formed in the neck piece 7, and both ends of the support 10. , an electric motor 11 that is rotatably supported in the vertical direction, a disk-shaped front cover 13 made of synthetic resin that is attached to the front of the electric motor 11 with screws 12, and a central portion of the front cover 13 with the A cylindrical portion 15 that protrudes to surround the rotating shaft 14 of the electric motor 11
A rear card 17 is detachably attached to the front cover 13 with a nut 16 screwed into the outer periphery; a blower blade 19 is detachably attached to the rotating shaft 14 with a spinner 18; A front card 20 is detachably attached to the outer periphery of the rear card 17 so as to cover the front surface, a mounting plate 21 extends rearward from the lower rear end of the support 10, and the rear of the mounting plate 21. A left and right swing motor device 23 fixed to the end with a screw 22, a vertical swing mechanism 24 attached to the rear surface of the electric motor 11, and a vertical swing mechanism 24 that covers the electric motor 11 and the like, and the opening is the front cover. It consists of a cup-shaped rear cover 25 that fits around the outer periphery of 13. When the electric fan 1 is oscillated in the vertical direction, the electric motor 11 pivotally supported by the support 10 and the front cover 1
3, rear card 17, blower blade 19, and front card 2
0, the vertical swing mechanism 24, and the rear cover 25 move in the vertical direction, and the support 10, the mounting plate 21, and the horizontal swing motor device 23 do not move in the vertical direction.
When the electric fan 1 is swung from the left and right, the fan main body 8 moves in the left and right directions about the pivot 9 of the support 10.

The electric motor 11 includes a front case 30 and a rear case 31 formed by sheet metal press molding, a stator housed in both cases 30 and 31, and a rotary motor rotatably positioned within the stator. Become closer to your child. The front case 30 and the rear case 31 have protrusions 32 and 33 formed at the center of their end faces for housing bearings therein. A rotating shaft 14 is pivotally supported. The front case 30 and the rear case 31 are connected by bringing the flanges 34, 35 stretched over their open ends into contact with each other, and by screwing the screws 36 into both the flanges 34, 35. The rotating shaft 14 protrudes from the center of the protrusions 32 and 33. The outer edges of the flanges 34 and 35 are not formed in a circular shape, but the upper, lower, left and right side edges are cut in straight lines, and gaps 37, 38, 39 are formed between them and the inner surface of the rear cover 25. Ru.

The cylindrical portion 15 is formed on the front surface of the front cover 13, and a plurality of boss portions 40 through which the screws 12 are inserted and abut against the front surface of the front case 30 are formed on the rear surface. The boss portion 40 comes into contact with the front surface of the front case 30, thereby forming a gap 41 between the front cover 13 and the front surface of the front case 30. A flange portion 42 is provided on the outer circumference of the front cover 13 and covers the side of the front end of the front case 30.
is formed. The rear cover 2 is attached to the flange 42.
A fitting portion 43 into which the opening edge of No. 5 fits is formed.

The support 10 includes a bottom plate 50 to which the mounting plate 21 and the pivot 9 are attached, and support parts 51 rising from both sides of the front end of the bottom plate 50. The bottom plate portion 50, the mounting plate 21, and the pivot shaft 9 are connected to each other by inserting a protrusion 52 formed at the front end of the mounting plate 21 into a through hole 53 formed in the bottom plate portion 50 for positioning. This is accomplished by inserting the upper end of the pivot 9 into matching through holes formed in the bottom plate 50 and the mounting plate 21, and caulking the tip. Said axis 9
is vertically provided at the center of the rear end of the bottom plate portion 50. The support portion 51 is bent such that the distal end thereof is wider than the base end thereof, and is located close to receive the lower surface of the electric motor 11 which is pivotally supported by a bearing 54 at the distal end.

The electric motor 11 is pivotally supported to the support 10 via a shaft body 60 molded from oil-containing synthetic resin. The shaft body 60 has a shaft portion 61 that is rotatably supported by the bearing 54 of the support 10, a through hole 63 through which a bearing locking rod 62 is inserted, and a through hole 63 formed on both sides of the front end of the front case 30 of the electric motor 11. Protrusions 65, 65 that fit into the locking holes 64, 64, and a regulating protrusion 66 that protrudes toward the rear surface of the front cover 13 are formed. The front case 30 is formed with a through hole 67 that matches the through hole 63 when the shaft body 60 is mounted. The front case 30 is pivoted to the support 10 by mounting the shaft 60 on the front case 30 and supporting the shaft 61 of the shaft 60 on the bearing 54 by expanding the support 10. I can support it. Thereafter, in order to prevent the support part 51 of the support 10 from expanding, the locking rod 62 is inserted into the through hole 67 and the through hole 63 from the inside of the front case 30, and the protruding end of the locking rod 62 is inserted into the through hole 67 and the through hole 63 from the inside of the front case 30. The parts are caulked using a washer 68. Therefore, since the front case 30 is made of sheet metal, it is difficult to integrally form the portion corresponding to the shaft 60 in terms of molding and precision. However, by using the shaft 60 separately, , the electric motor 11 can be easily positioned and pivoted to the support 10. The power supply cord 70 to the electric motor 11 and the vertical oscillation mechanism 24 (to be described later) are connected to and disconnected from each other. An inner wire body 71 is inserted into the neck piece 7 from within the pillar 3 and connected to the bottom plate portion 50 of the support 10. After passing through the formed through hole 72 and passing through the right side gap 41 between the front cover 13 and the front surface of the electric motor 11, the upper surface of the electric motor 11 and the rear cover 25 are inserted.
The vertical swing mechanism 24 and the electric motor 11 are inserted through the upper gap 37 between the collar parts 34 and 35.
It is connected to the lead wire 73 from the stator winding. When inserted into the right side gap 41 between the front cover 13 and the front surface of the electric motor 11, the inner wire body 7
1 and the power supply cord 70 are located between the protrusion 32 on the front surface of the electric motor 11 and the regulating protrusion 66 of the shaft body 60. Therefore, when the electric motor 11 swings in the vertical direction, the inner wire body 71 and the power supply cord 70 expand and contract and move within the right side gap 41. Projection 3
2, since its movement is restricted only within the right side gap 41, it does not move to the side of the support part 51 of the support tool 10.

The vertical swing mechanism 24 attached to the rear surface of the electric motor 11 includes a gear case 80 with a U-shaped cross section formed by bending a sheet metal, and a lid body made of synthetic resin that closes two side openings of the case 80. 81, a plurality of gear components assembled and attached to the gear case 80 and the lid 81, and an engagement/disengagement body 82 for engaging and disengaging the power transmission of the gear components. A bent mounting piece 83 is formed on each side wall edge of the gear case 80. Each side wall of the gear case 80 is connected to the upper wall 80a and the right side wall 8 of the vertical swing mechanism 24.
It is fixed to the rear case 31 with screws so as to form a lower wall 80c and a lower wall 80c. The screw is screwed into the mounting piece 83 from inside the rear case 31. The lid body 81 has a main upper wall 81a that covers the upper surface of the upper wall 80a, a left side wall 81b of the vertical swing mechanism 24, a back wall 81c, and a positioning member that fits over the protrusion 33 of the rear case 31. Fitted back wall 81d
and an auxiliary lower wall 81e connected to the lower wall 80c.
, a mounting portion 84 of the engaging and detaching body 82 formed on the upper surface of the left side of the main upper wall 81a, and the left side wall 81b.
It consists of a mounting part 86 for the driving capacitor 85 of the motor 11 stretched over the lower edge of the outer surface, and a terminal covering part 87 of the capacitor 85 stretched over the rear edge of the outer surface of the left side wall 81b. The lid body 81 is connected to the fitted back wall 8.
1d is fitted into the protrusion 33, and a protrusion formed at the end of the back wall 81c is fitted onto the gear case 8.
The cover body 81 is positioned in the gear case 80 and the rear case 33 by fitting into the engagement hole in the right side wall 80b of the gear case 80. The lid body 81 is locked to the gear case 80 by forming elastic claw pieces 88 formed on the main upper wall 81a and the auxiliary lower wall 81e of the lid body 81 on the upper wall 80a and the lower wall 80c of the gear case 80. This is done by engaging the provided through hole 89. The gear structure housed in the gear case 80 and the lid 81 includes a worm 90 formed on the rotating shaft 14 protruding into the gear case 80 and the lid 81, and a left side wall of the lid 81. A pinion shaft 93 located above the worm 90 is supported by a bearing 91 formed in the inside of the gear case 81b and a bearing hole 92 bored in the right side wall 80b of the gear case 80, and a pinion shaft 93 is supported by the pinion shaft 93. A worm wheel 94 that meshes with the worm 90 is engaged with a clutch ball 96 that is biased outwardly by a spring 95 housed in a through hole drilled in the pinion shaft 93.
a cylindrical clutch body 97 pivotally supported by the pinion shaft 93 which rotates integrally with the pinion shaft 93;
The cam gear 99 is pivotally supported on the outer surface of the right side wall 80b and meshes with a pinion 98 protruding from the bearing hole 92 of the cam gear 99. Said cylindrical clutch body 97
is mounted so as to be movable in the axial direction of the pinion shaft 93, and by being moved in the axial direction, the end of the cylindrical shaft portion of the worm wheel 94 and the clutch body 97 are engaged and disengaged; Transmission of rotational force between the worm wheel 94 and the clutch body 97 is performed. The clutch body 9
7 is always connected to the worm wheel 9 by a spring 100.
4 in the direction of engagement. A flange is formed on the outer periphery of the clutch body 97, and the engaging and disengaging body 82 engages with the flange. The engaging and detaching body 82
is rotatably supported on the mounting portion 84.
The inner wire body 71 is attached to the detachable body 82.
wire 101 is connected, and the wire 101
When the engaging/disengaging body 82 is rotated, the clutch body 97 is moved. The inner wire body 71 is held by a screw 103 screwed into the boss 102 of the attachment part 84 to such an extent that the tension movement of the wire 101 is not prevented. The cam gear 99 is pivotally supported on the right side wall 80b such that a pivot shaft 104 is located below the pinion 98. The pinion shaft 93 is located above the worm 90 and no parts are assembled below the worm 90, so the back wall 8
1c has a vertical wall at the rear of the pinion shaft 93 and the worm 90, the lower part of the back wall 81c can be recessed toward the rear surface of the electric motor 11, and the vertical swing mechanism 24 is installed at the upper rear surface of the electric motor 11. An extra space 1 is formed below the vertical swing mechanism 24.
05 can be formed. In this embodiment, the back wall 81c is inclined toward the electric motor 11 to form the extra space 105. The right side wall 80b of the gear case 80 is connected to the worm 90.
The pinion 98 and the cam gear 99 are positioned toward the rear of the electric motor 11. The cam gear 99 and the support 10 are connected by a substantially L-shaped vertical swing link 106.
One end of the link 106 is pivoted to the base end of the right side support part 51 of the support 10 and extends upward along this side of the support part 51, and then connects to the flanges 34, 35 of the electric motor 11 and the rear thereof. Right side gap 3 with inner surface of cover 25
The other end of the link 106 is pivotally supported on the outer periphery of the cam gear 99 through the link 9 . The link 10
6 is inserted through the gap 39 formed by cutting the flanges 34 and 35 of the electric motor 11 in a straight line, so that the rear cover 52 can be inserted through the gap 39 formed by cutting the flanges 34 and 35 of the electric motor 11 in a straight line.
The cross section of the inner diameter close to the circular arc portion of 35 can be made into a substantially cylindrical shape, and the external appearance can be made compact.

When the electric motor 11 is operated, the rotating shaft 14 rotates, the rotation is transmitted from the worm 90 of the rotating shaft 14 to the wormhole 94, and the rotation is transmitted from the clutch body 97 to the pinion shaft 93 via the clutch ball 96. is conveyed. Due to the rotation of the pinion shaft 93, rotation is transmitted from the pinion 98 to the cam gear 99, and the vertical swing link 106 performs a crank movement about the pivot point of the support 10. Accompanying the crank movement, the electric motor 11 swings up and down about the shaft body 60.

The power supply cord 70 and the lead wire 73 are connected with a crimp terminal, and the connected portion is held by being tied to the main upper wall 81a of the lid body 81 with a hand 110. The inner wire body 71 is inserted into the right side gap 41 between the front cover 13 and the electric motor 11 from a mounting portion 84 formed on the upper surface of the left side of the main upper wall 81a of the lid body 81. Since the wire 71 is wired with a large radius of curvature, the sliding resistance of the wire 101 moving within the inner wire body 71 can be reduced, and the operating force exerted by the unillustrated operating knob in the base 2 can be reduced. . In addition, the inner wire body 71 and the power supply cord 70 are wired close to the center of vertical movement of the electric motor 11, so that the inner wire body 71 and the power supply cord 70 can expand and contract as the electric motor 11 swings vertically.
This reduces bending and left/right movement.

The driving capacitor 85 is the capacitor 85
The terminal 111 is placed on the mounting portion 86 so as to face the terminal cover 87 in the opposite direction to the electric motor 11, and the band 112 is placed on the left side wall 81b of the lid 81.
be tied up. The capacitor 85 may be attached to the left side wall 81b in various ways, such as not only binding with the band 112 described above, but also clamping with elastic locking pieces, fixing with screws, etc. The lead wire 73, the power supply cord 70, and the terminal 111 of the capacitor 85 are connected by a connecting wire 113. Electrical connection between the terminal 111, the power supply cord 70, the lead wire 73, and the connecting wire 113 is made by a press-contact terminal. Terminal 11 of the capacitor 85
1 in the opposite direction to the motor 11, the capacitor 85 can be connected to the motor 1 without fear of leakage.
It can be made close to 1. Further, since the terminal 111 does not face upward, the terminal 111 does not come into contact with the engaging/disengaging body 82 of the vertical swing mechanism 24 and prevent the operation of the engaging/disengaging body 82 .
Furthermore, in this embodiment, by covering the terminal 111 with the terminal covering part 87 and placing the capacitor 85 on the mounting part 86, the rear cover 25 and the mounting part 86 can be connected to each other. The portion 87 also covers the capacitor 85 to prevent dust from adhering to the capacitor 85. The contact line 11
3, the lead wire 73, and the power supply cord 70 are connected using crimp terminals.
3 is connected to the main upper wall 81a of the lid 81 using a band 110. Therefore, the power supply cord 70, the connecting line 113, and the lead line 73
The connecting portion where insulation coating is likely to be missing is not directly attached to the electrically conductive gear case 80, but is attached to the main upper wall 81a of the lid body 81 made of an insulating material.
Since the wires are tied together, good electrical insulation can be achieved. Note that in this embodiment, the band 1
10, but the main upper wall 8
An elastic locking piece may be integrally formed in 1a and held therebetween.

A partition wall 120 extending rearward is formed on the right side wall 80b of the gear case 80. The partition wall 1
A bent cut and raised piece 121 is formed at the rear end of the cover 20, and the rear cover 25 is fixed by a screw 122 that is screwed into the cut and raised piece 121. By positioning the right side wall 80b closer to the worm 90 as described above, an extra space is formed between the partition wall 120 and the rear cover 25. The remaining space is used as a storage part 124 for the balance weight 123, and the partition wall 120 is used as a storage part 124 for the balance weight 123.
23 is the mounting part. The partition wall 120 is provided with a boss portion 126 into which a balance weight mounting screw 125 is screwed. The balance weight 123 has a through hole 127 through which the screw 125 is inserted.
A flange 128 is formed in which a groove is hooked onto the upper edge of the partition wall 120. The flange 128
A notch 129 is formed in a part of the partition wall 120, in which the boss 126 is positioned when the balance weight 123 is hooked onto the partition wall 120. Therefore, by simply hooking the balance weight 123 onto the partition wall 120, the balance weight 123 can be easily temporarily held and positioned on the partition wall 120.

The mounting plate 21 extending rearward from the support 10 includes a fixing part 130 extending horizontally from the bottom plate part 50 of the support 10, and an intermediate inclined part 131 extending obliquely upward from the rear edge of the fixing part 130. , is formed in a substantially shape with a mounting portion 132 of the horizontal oscillating motor device 23 located behind the vertical oscillating mechanism 24 and extending horizontally. The mounting plate 21
is fixed to the left half side of the bottom plate portion 50, and the motor device 23 is fixed to the partition plate 12 of the gear case 80.
It is located in the left extra space of 0. Therefore, the oscillating motor device 23 is positioned close to one half side (the left half side in this embodiment) in the rear space of the electric motor 11, and the balance weight is located on the other half side (the right half side in this embodiment). 123, pinion 98, and cam gear 99, each member can be stored by effectively utilizing the space in which the electric motor 11 is placed, and the outer diameter of the rear cover 25 can be made compact.

The motor device 23 includes an electric motor section and a gear section, and an output shaft 140 that rotates at a low speed protrudes from the gear section. The output shaft 140 is fixed to the mounting portion 132 with the screw 22 via the substrate 133 so as to hang down from the bottom surface. The output shaft 14
0, the cam body 141 is fixed. One end of a left and right oscillating link 142 is pivotally supported on the outer peripheral portion of the cam body 141, and the other end of the link 142 is pivotally supported on the neck piece 7. Therefore, the motor device 2
3 is operated, the left and right oscillating link 142 performs a crank movement about the pivot point of the neck piece 7. The support tool 1 accompanies the crank movement.
0 performs reciprocating movement in the left and right directions around the pivot 9, and the electric motor 11 performs left and right oscillations accordingly.

By forming the intermediate sloped part 131 on the mounting plate 21, an extra space 134 is formed behind the sloped part 131 and below the mounting part 132. The extra space 134 is just an extra space when the electric motor 11 faces horizontally as shown in FIG. 2, but when the electric motor 11 faces downward as shown in FIG. The lower side is close to the lower surface of the mounting plate 21 and serves as a movement relief space for the pre-discussion cover 25. Therefore, there is no need to form a relief part of the mounting plate 21 in the rear cover 25 when the electric motor 11 swings downward, and the rear cover 2
5 can be made compact, and the downward swing angle of the electric motor 11 can be expanded.

Although the intermediate inclined portion 131 extends obliquely upward, a free space portion 105 is formed below the vertical swing mechanism 24, so that the electric motor 11 can be moved as shown in FIG. When facing upward, the intermediate inclined portion 131 is close to the back wall 81c of the vertical swing mechanism 24, and the extra space 105 becomes a relief space, so that the upward swing angle of the electric motor 11 can be expanded. It is something. Further, in this embodiment, a recess 135 is formed in the intermediate sloped part 131 of the mounting plate 21 and in the upper surface near the sloped part 131, the mounting part 132, and the fixing part 130. Therefore, when the electric motor 11 is oscillated upward, the rear lower corner of the electric motor 11 is located within the recess 135, and the upward oscillation can be made larger. Further, the recess 135 is formed on the mounting plate 2.
1, the material thickness of the metal sheet for molding the mounting plate 21 can be made thinner, and molding can be easily performed. It serves as a reservoir for oil.

A notch 136 and a projecting piece 137 are formed on the right side edge of the mounting plate 21. The power supply cord 143 to the oscillating motor device 23 is connected to the notch 136.
By being locked in a meandering manner and being guided in contact with the protruding piece 137, the wiring can be routed along the right side edge of the mounting plate 21 without slack. In this embodiment, by forming the recesses 135 in the mounting plate 21, the recesses 135 are formed on the lower surface of both side edges of the mounting plate 21.
8 is formed and the power supply cord 143 is routed along the recess 138, thereby reducing the protrusion of the power supply cord 143 from the mounting plate 21. Therefore, when the left and right swing link 142 is disposed close to the mounting plate 21, the link 1
This prevents the power supply cord 143 from being wrapped around the power supply cord 42. Before the power supply cord 143 is inserted into the neck piece 7, the band 14 is attached to a hanging piece 144 cut and raised on the bottom plate portion 50 of the support 10 in order to prevent the power supply cord 143 from sagging due to left and right swinging.
It is fixed at 5.

The operation of the electric fan 1 is controlled by a control switch and a timer (not shown) of the electric motor 11 built into the base 2. Therefore, the power supply cord 70 is passed through the neck piece 7 and then inserted into the slide pipe 5 to be connected to the switch and timer. The vertical swing of the electric fan 1 is achieved by inserting the inner wire body 71 into the slide pipe 5 and connecting it to an operating knob built into the base 2, and pulling the wire 101 of the inner wire body 71 by the knob. It is stopped by operation. After the power supply cord 143 is inserted into the slide pipe 5, the left and right oscillation of the electric fan 1 is connected to a switch (not shown) built into the base 2, and the switch stops the oscillation motor device 23. Let's do it. The electric fan 1
In order to smoothly control the swing of the switch, the switch is a rotary switch, a cam plate is attached to the rotating shaft of the switch, and the inner wire body 71 is connected to the cam plate. This allows for switching between horizontal oscillation, vertical oscillation, and curved trajectory oscillation that is a combination of both oscillations.

In this embodiment, the left-right swing motor device 23 is positioned closer to the rear left half of the electric motor 11, but it is clear that it may be positioned closer to the right half. . Furthermore, by positioning the motor device 23 closer to one half side, a storage section 124 is formed on the other rear half side.
The storage portion 124 may store not only the balance weight 123 but also the capacitor 85, and in this embodiment, the partition wall 12
0 through the storage section 124 and the motor device 2
It extends to the back of 3.

As described above, according to the present invention, by disposing the left-right oscillation motor device in the electric fan main body, the neck piece that supports the electric fan main body can be formed compactly, and the left-right oscillation motor can move the electric fan main body. It can improve the weight balance of
The balance weight placed mainly on the electric fan can be reduced. In addition, since the left and right oscillation motor device and the balance weight are arranged side by side in a direction almost orthogonal to the motor axis behind the electric motor, the space behind the electric motor can be effectively utilized to accommodate the left and right oscillation motor and balance weight. It can be arranged compactly, and the main body of the electric fan can be formed compactly.

[Brief explanation of drawings]

Fig. 1 is a partially sectional side view of the electric fan of the present invention;
The figure is a right side sectional view of the main body of the electric fan facing horizontally, excluding the guard, balance weight, etc.
The figure is a plan sectional view of the main body of the fan excluding cards, etc., Figure 4 is a left sectional view of the main body of the fan excluding cards, etc., Figure 5 is a cross-sectional view of Figure 2, and Figure 6 is a cross-sectional view of Figure 2. - Cross-sectional view, Figure 7 is a perspective view of the main body of the fan excluding the card rear cover, etc., Figure 8 is an exploded rear perspective view of the main body of the fan excluding the gear structure of the vertical swing mechanism, and Figure 9 is an upward view. Figure 10 is a right side sectional view of the main body of the fan, similar to Figure 2, facing downwards, Figure 11 is a sectional view of the fan body, similar to Figure 2, facing downwards, and Figure 11 shows the support, mounting plate, and left and right neck. A side view of the swing motor device, FIG. 12 is a plan view of the same, and FIG. 13 is a side view of the swing motor device.
Figure 1 is a side view excluding the power supply cord to the motor device, Figure 14 is a cross-sectional view of Figure 12, Figure 15 is a cross-sectional view of Figure 3, and Figure 16 is a cross-sectional view of Figure 4. It is. 1...Fan, 7...Neck piece, 8...Fan main body, 9...Pivot, 10...Support, 11...
...Electric motor, 21... Mounting plate, 23... Left and right swing motor device, 24... Vertical swing mechanism, 124...
Storage department.

Claims (1)

[Claims] 1. A neck piece that is supported on a fan stand so as to be able to adjust its elevation and elevation, a U-shaped support that is pivotally supported on the neck piece, and a U-shaped support that is pivotally supported between the tip of the support so that it can swing up and down, and that also has air blowing blades. a rotating electric motor; a vertical swinging mechanism disposed at the rear of the motor; a horizontal swinging motor device mounted on a mounting plate extending rearward from the support; the support, the electric motor, and a vertical swing mechanism; An electric fan comprising a oscillation mechanism and a cover that covers a left-right oscillation motor device, and the left-right oscillation motor device and a balance weight are arranged behind the electric motor in a direction substantially orthogonal to the axis of the electric motor.