JPH0610882A - Electric fan - Google Patents

Abstract

PURPOSE:To reduce a number of part items so as to improve workability of assembly by providing a plate-shaped member, in which a long hole is formed for slidably fitting a cam floated, rotated and driven by a vertically oscillating motor, in either a supporting member or a fan driving motor. CONSTITUTION:In an electric fan 1, when a vertically oscillating motor 12 is rotated, a pivotal shaft 17 is slid to the center from one end of a long hole 26a according to rotation of a cam 16, to place a blower motor 7 at an angle in a lower direction with a shaft 28 serving as the center. When the vertically oscillating motor 12 is rotated, the pivotal shaft 17 reaches the other end of the long hole 26a to place the blower motor 7 in a horizontal direction, and further when the vertically oscillating motor 12 is rotated, the pivotal shaft 17 is again slid to the center of the long hole 26a, to place the blower motor 7 at an angle in an upper direction. By the vertically oscillating motor 12 thus rotated, the blower motor 7 can be oscillated at the upper/lower angles, to also prevent a shaft 28a of the supporter 28 from coming off from a supporting fixture 26. Accordingly, necessity for a link or the like is eliminated, and a number of part items can be reduced to improve work efficiency of assembly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan provided with a swing mechanism for vertically swinging a fan head with respect to a base.

[0002]

2. Description of the Related Art FIG. 11 is a vertical sectional view of a conventional fan. In the figure, 1 is a fan, 2 is a base, 3 is a neck piece pivotally supported on the base 2 so that the elevation angle can be adjusted, and 4 is a fan head pivotally supported on the neck piece 3.

The fan main body 4 is provided with a supporting member 6 as a supporting member, which is mounted on an upper portion of a pivot 5 which is inserted and supported in a bearing hole formed in the neck piece 3, and between both ends of the supporting member 6. A blower fan drive motor 7 (hereinafter referred to as a blower motor 7) that is pivotally supported so as to be sandwiched and a blower blade 9 that is detachably attached to a rotation shaft 8 of the blower motor 7.
And a rear guard 10 and a front guard 11 that cover the blower blades 9.
And the vertical swing motor 1 mounted behind the blower motor 7.
2, a vertical swing mechanism 13 that vertically swings the fan 1 by the vertical swing motor 12, and a cup-shaped rear cover 14 that covers the blower motor 7 and the like.

The vertical swing mechanism 13 is fixed to the output shaft 15 of the blower motor 7 and has an elliptical cam 16 that rotates in conjunction therewith.
The upper and lower swing links 19 are connected to the outer periphery of the cam 16 by one end of which is pivotally supported by a pivot 17 and the other end of which is pivotally supported and connected to a pivot 18 behind the support 6.

The support 6 has a bottom surface 6 on which the pivot 5 is mounted.
a, a support portion 6b that rises from both sides of the front end of the bottom surface portion 6a, and a rising support portion 6c that mounts a pivot 18 formed on the right side of the rear end of the bottom surface portion 6a.

The pivot 21 of the support 6 for the blower motor 7 is
As shown in FIG. 13, the bearing 21b and the support portion 6b are sandwiched between the holes 7a formed in the brackets on both sides of the blower motor 7, and are pivotally supported by the screw 21a.

When the vertical swing motor 12 is operated, the output shaft 15 rotates, and the rotation is transmitted to the cam 16 that interlocks with the output shaft 15. The vertical shaft is pivotally supported by the pivot shaft 17 on the outer peripheral portion of the cam 16. A swing link 19 performs a crank movement about the pivot 18 of the support 6. As a result, the blower motor 7 swings up and down about the pivot 21 of the support 6.

The neck piece 3 includes a left and right swing motor 22.
Is mounted on the output shaft 2 of the left and right swing motor 22.
A cam 24 is fixed to the cam 3, and a left and right swing ring 25 is pivotally supported on the outer peripheral portion of the cam 24. by this,
When the left / right swing motor 22 rotates, the left / right swing ring 25 makes a crank motion around the pivot point of the neck piece 3,
Along with this crank movement, the support tool 6 reciprocates in the left-right direction about the pivot axis 5 to swing the blower motor 7 left and right.

[0009]

In the vertical swing mechanism 13 of the conventional fan 1, one end of the vertical swing link 19 is pivotally supported by the cam 16 and the other end of the vertical swing link 19 is supported by the support member 6. Since the blower motor 7 is pivotally supported by the crank motion of the vertical pivot link 19,
The number of parts such as the vertical swing link 19 and the bearing of the pivot is large, and the number of assembling steps is large, which causes a problem in cost.

Further, as shown in FIG. 13, in order to attach the blower motor 7 to the support 6, the blower motor 7, the support portions 6b on both sides and the bearings 21b on both sides are aligned and tightened with two screws 21a. Since it had to be done, it took a lot of work time and was a difficult work.

In this case, if the bearing 21b is provided with a pin so as to be temporarily fixed to the bracket, the positioning can be facilitated, but the support 6 is temporarily fixed to the blower motor 7 while being expanded to the height of the pivot 21. It had to be done, and it was a difficult task that was still a heavy task.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fan which can reduce the number of parts by eliminating links and the like and can improve the workability of assembly.

[0013]

According to a first aspect of the present invention, there is provided a support member for pivotally supporting a blower fan drive motor in a vertically swingable manner, and one of the support member and the blower fan drive motor. An upper / lower swinging motor to be mounted and a long hole for slidably loosely fitting a cam provided on either the support member or the blower fan driving motor and rotatably driven by the vertical swinging motor. And a plate-shaped member.

According to a second aspect of the present invention, both sides of the blower fan driving motor are pivotally supported by the supporting member, and the vertical swinging motor is disposed between the supporting member and the rear portion of the blowing fan driving motor. In the fan in which the blower fan drive motor is swung in the vertical direction by the above, the portion of the support member that pivotally supports both sides of the blower fan drive motor has a circular shaft hole and upward from the shaft hole. It is formed of a plate-shaped member having an opening groove having a width narrower than the diameter of the shaft hole to be opened, and the lateral direction of the opening is provided at both sides of the blower fan driving motor pivotally supported by the support member. A shaft having a peripheral surface that fits in the shaft hole and is dimensioned to pass through the groove is projectingly provided.

[0015]

According to the first aspect of the present invention, a link or the like for swinging up and down is unnecessary, the number of parts is reduced, and the assembling work can be improved.

According to the second aspect of the invention, the assembly of the blower fan driving motor and the support member is simplified, and the assembly work can be improved.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, 1 is a fan, 2 is a base, 3 is a neck piece pivotally supported on the base 2 so that the elevation angle can be adjusted, and 4 is a fan pivotally supported on the neck piece 3. It is the head.

The fan head 4 is provided with a supporting member 26 as a supporting member which is mounted on an upper portion of a pivot 5 which is axially supported by a bearing hole formed in the neck piece 3, and between both ends of the supporting member 26. A blower fan drive motor 7 (hereinafter referred to as a blower motor 7) that is pivotally supported so as to be sandwiched, a blower blade 9 that is detachably attached to a rotation shaft 8 of the blower motor 7, and a blower blade 9. Rear guard 10 and front guard 11
And a vertical swing motor 12 mounted behind the blower blade 9.
And a vertical swing mechanism 27 that vertically swings the fan 1 by the vertical swing motor 12, and a cup-shaped rear cover 14 that covers the blower motor 7 and the like.

As shown in FIGS. 4 to 6, the support tool 26 has a bottom surface portion 26a on which the pivot shaft 5 is mounted, a blower motor 7, and a portion that supports both side portions of the blower fan motor 7. Is a circular shaft hole 26f and an opening groove 26e having a width narrower than the diameter of the shaft hole 26f opening upward from the shaft hole 26f.
A support portion 26b formed of a plate-shaped member having a plate-like member and a rising portion 26c formed of a plate-shaped member are provided on the right side of the rear end of the bottom surface portion 26a, and a long hole 26d is horizontally formed in the rising portion 26c. Is forming.

A shaft 28a is projectingly provided on a support body 28 at both side portions of the blower motor 7 pivotally supported by the support portion 26b. The shaft 28a extends in a lateral direction 28c of the shaft 28a and an opening groove 26e of the support portion 26b. With a dimension to pass through the longitudinal direction 28b in the axial hole 2
A falling prevention piece 28d larger than the shaft hole 26f is attached to the end face formed on the peripheral surface fitted to the 6f. Reference numeral 29 denotes a screw that holds the support 28 from both sides.

When the blower motor 7 is incorporated into the support tool 26, as shown in FIG. 6, first, the blower motor 7 is lifted and the lateral direction 28c of the shaft 28a of the support 28 is moved from both sides to the opening groove of the support portion 26b. 26e, the blower motor 7 is rotated as shown in FIG. 7, and further, as shown in FIG. 3, a bearing 17b is used as a pivot 17 in a long hole 26d of a rising portion 26c of the support 26. Screw 17a.

In the fan 1 assembled as described above, when the vertical swing motor 12 rotates from the state shown in FIG. 2, the cam 1
As the shaft 6 rotates, the pivot shaft 17 slides from one end of the elongated hole 26d toward the center, and the blower motor 7 forms a downward angle as shown in FIG. 8 about the shaft 28a. Then, when the vertical swing motor 12 rotates, as shown in FIG. 9, the pivot 17 reaches the other end of the elongated hole 26d and the blower motor 7 becomes horizontal,
Further, when the vertical swing motor 12 rotates, as shown in FIG. 10, the pivot 17 again slides on the center of the elongated hole 26d to make the blower motor 7 an upward angle.

Thus, as shown in FIGS. 2 and 8 to 10, by rotating the vertical swing motor 12, the blower motor 7 can be swung up and down and the vertical swing angle changes. However, the shaft 28a of the support 28 does not come out of the support 26. Therefore, no link or the like is required, the number of parts can be reduced, and the assembling work is simplified and the work efficiency is improved. Moreover, the assembly of the blower motor and the support becomes easy, and the workability can be improved.

In the above embodiment, the vertical swing motor is mounted on the rear part of the blower motor, and the elongated hole is formed on the rising portion formed on the support. However, the vertical swing motor is mounted on the support,
The present invention can be implemented in the same manner even if a metal fitting having an elongated hole is attached to the rear portion of the blower motor. Further, in the portion where both sides of the blower fan driving motor of the above embodiment are pivotally supported, a circular shaft hole is formed in the rising portion of the support and a width narrower than the diameter of the shaft hole opened upward from this shaft hole. An opening groove is formed, and on both sides of the blower fan driving motor, there is a circumferential surface that fits in the axial hole in the longitudinal direction with a dimension that passes through the opening groove in the lateral direction, Although it was constructed by projecting a shaft with a large slip-out prevention piece, conversely, a circular shaft hole on both sides of the blower fan drive motor and a width narrower than the diameter of the shaft hole opening downward from this shaft hole. The plate-shaped member having the opening groove formed therein is mounted, and the rising portion of the support has a peripheral surface that fits in the shaft hole in the longitudinal direction with a dimension that passes through the opening groove in the short direction, and has a shaft at the end. The present invention can be carried out in the same manner even when the shaft provided with a drop-out prevention piece larger than the hole is formed by projecting. . In addition, the slip-out preventing piece is not always necessary, and for example, the shaft may be projected outward by a predetermined length so that the shaft does not slip out of the shaft hole.

[0026]

As described above, according to the present invention, the number of parts can be reduced since the conventional mechanism such as a link is unnecessary, and the assembling work can be improved. In addition, the workability of assembling the blower motor and the support can be improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a fan showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing the fan head portion of FIG.

FIG. 3 is an explanatory view showing the vertical swing mechanism of FIG.

FIG. 4 is an explanatory view showing a blower motor, a support body, and a support tool.

FIG. 5 is a front view showing a state in which a shaft of a support body is inserted into a support tool and assembled.

FIG. 6 is a first view of assembling the support body of the blower motor to the support tool.
Explanatory diagram showing the procedure of.

FIG. 7: Second assembling the support of the blower motor to the support
Explanatory diagram showing the procedure of.

FIG. 8 is an explanatory view showing a state in which the blower motor is set to a downward angle by the vertical swing motor.

FIG. 9 is an explanatory diagram showing a state in which a blower motor is set to a horizontal angle by a vertical swing motor.

FIG. 10 is an explanatory diagram showing a state in which a blower motor is set to an upward angle by a vertical swing motor.

FIG. 11 is a vertical cross-sectional view showing a conventional fan.

FIG. 12 is a vertical cross-sectional view showing a conventional fan head.

FIG. 13 is an explanatory view showing a state in which a blower motor is incorporated in a conventional support tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fan 2 Base 3 Neck piece 4 Fan head 5 Axis 6 Supports 7 Blower fan drive motor 12 Vertical swing motor 15 Output shaft 16 Cam 17 Axis 26a Bottom part 26b Support part 26c Rise part 26d Long hole 26e Opening groove 26f Shaft hole 28a Shaft 28b Longitudinal direction 28c Shortest direction 28d Fall-out prevention piece

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[Procedure amendment]

[Submission date] October 7, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a fan showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing the fan head portion of FIG.

FIG. 3 is an explanatory view showing the vertical swing mechanism of FIG.

FIG. 4 is an explanatory view showing a blower motor, a support body, and a support tool.

FIG. 5 is a front view showing a state in which a shaft of a support body is inserted into a support tool and assembled.

FIG. 6 is a first view of assembling the support body of the blower motor to the support tool.
Explanatory diagram showing the procedure of.

FIG. 7: Second assembling the support of the blower motor to the support
Explanatory diagram showing the procedure of.

FIG. 8 is an explanatory view showing a state in which the blower motor is set to a downward angle by the vertical swing motor.

FIG. 9 is an explanatory diagram showing a state in which a blower motor is set to a horizontal angle by a vertical swing motor.

FIG. 10 is an explanatory diagram showing a state in which a blower motor is set to an upward angle by a vertical swing motor.

FIG. 11 is a vertical cross-sectional view showing a conventional fan.

FIG. 12 is a vertical cross-sectional view showing a conventional fan head.

FIG. 13 is an explanatory view showing a state in which a blower motor is incorporated in a conventional support tool.

[Explanation of reference symbols] 1 fan 2 base 3 neck piece 4 fan head 5 pivot 6 support 7 blower fan drive motor 12 vertical swing motor 15 output shaft 16 cam 17 pivot 26a bottom 26b support 26c rising 26d length Hole 26e Opening groove 26f Shaft hole 28a Shaft 28b Longitudinal direction 28c Short-side direction 28d Fall-out prevention piece

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 7]

[Fig. 13]

[Figure 6]

[Figure 8]

[Figure 9]

[Figure 10]

FIG. 11

[Fig. 12]

Claims (2)

[Claims] 1. A support member for pivotally supporting a blower fan drive motor in a vertically swingable manner, a vertical swing motor mounted on either the support member or the blower fan drive motor, And a plate member having an elongated hole into which a cam, which is provided on either the support member or the blower fan driving motor and is rotationally driven by the vertical swing motor, is slidably and loosely fitted. And a fan. 2. A support member pivotally supports both sides of a blower fan driving motor, and a vertical swing motor disposed between the support member and the blower fan driving motor rear portion drives the blower fan. In a fan in which a motor for a fan is vertically swung, a portion of the support member that pivotally supports both sides of the motor for driving the blower fan has a circular shaft hole and the shaft hole that opens upward from the shaft hole. Is formed of a plate-shaped member having an opening groove having a width narrower than the diameter of the fan fan driving motor that is pivotally supported by the support member, and has a dimension in which the lateral direction passes through the opening groove. A fan having a peripheral surface that fits in the shaft hole in the longitudinal direction is projected.