JPH10292897A - Wind direction adjusting device for electric fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind direction adjusting device for electric fans by which the direction of neck rotation can be set at any angle over the whole angle of 360 degrees and the direction of a blower section does not change against its base stand, even when the base stand is inclined. SOLUTION: A stand is provided with a supporting shaft 2 mounted to a neck piece 1 for supporting a blower section with the shaft section 2a of one end thereof, a cylindrical metal fittings 3 engaged with the upper side of a spherical section 2b of another end of the supporting shaft, a receiving metal fittings 4 engaged with the lower side of the spherical section 2b, and a fixing screw 5 threadedly engaged with the side of the cylindrical metal fittings 3. When the fixing screw 5 is tightened, the top section 5a thereof abuts on the inclined portion 4b of the receiving metal fittings 4, then the cylindrical metal fittings 3 and the receiving metal fittings 4 hold the spherical section 2b of the supporting shaft 2 between them and consequently fix the supporting shaft 2. While, when the fixing screw 5 is loosened, the shaft section 2a of the supporting shaft 2 can be made pivotal over the whole angle of 360 degrees.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind direction adjusting device for a fan.

[0002]

2. Description of the Related Art Heretofore, this type of wind direction adjusting device has generally been configured as shown in FIG.

[0003] As shown in the figure, a support shaft 102 protrudes from a lower portion of a motor constituting a blower.
Is supported by a receiving member 103 with a swing adjustment body 104 interposed therebetween. The oscillating adjustment body 104 includes the motor 101 and the oscillating rod 1.
05 and connected by a oscillating motor (not shown)
02 can be swung around.

A plurality of engagement holes 104 a are provided on the lower surface of the swing adjustment body 104 so as to be fitted to the tip of a ball spring 106 provided in a concave portion 103 a of the receiving member 103. The receiving tool 103 is provided at the upper end of the support pillar 107 and is supported by a spring 108 so as to be able to descend about a bolt shaft 109 by the action of a spring 108.

In the above configuration, when the left and right directions of the motor 101 are changed, the ball spring 106 moves through the engagement hole 104a in order by manually operating a blade guard (not shown) or the like, so that a predetermined blowing direction is obtained. Is set to

[0006] When the direction of elevating the air is changed, the spring 108 is deformed by manually operating a blade guard or the like in the elevating direction, so that the spring 108 is deformed into the second engagement hole 103 b provided at the lower part of the receiving member 103. The second ball spring (not shown) can be engaged to stop at a predetermined position.

[0007]

In such a conventional wind direction adjusting device for a fan, the rotation angle around the neck is generally 18 degrees.
It is limited to 0 degrees or less, and there is a problem that it is not possible to fix the blowing direction when using the fan base tilted,
It is required that the air blowing direction around the neck can be rotated by 360 degrees, and that the direction of the air blowing unit is fixed with respect to the base even when tilted.

The present invention solves such a conventional problem. The direction around the neck can be set to any of 360 degrees around the circumference, and the direction of the blower changes with respect to the base even when the head is tilted. It is an object of the present invention to provide a wind direction adjusting device for an electric fan that does not have any problem.

In addition, it is necessary to separately perform the operation of adjusting the direction around the neck and the direction of elevating, and a device for adjusting the wind direction is required.
Since there are a number of locations, there is a problem that the entire device becomes large, and it is required that the direction of the neck circumference and the elevation direction can be adjusted at once, and the wind direction adjusting device can be downsized.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a wind direction adjusting device for an electric fan that can adjust the direction around the neck and the elevation direction at a time and can be downsized. .

Further, since the angle range in which the elevation direction can be adjusted is small, there is a problem that the blowing direction cannot be largely changed, and it is required that the elevation direction can be changed by at least 90 degrees.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a wind direction adjusting device for a fan capable of changing the elevation angle by 90 degrees or more.

[0013] Further, in the case where the elevating direction is changed, there is a problem that, when the screw is loosened, the screw is suddenly bent at the center of rotation due to the weight and imbalance of the blower when the screw is loosened. However, it is required to bend slowly downward.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a wind direction adjusting device for a fan which does not bend sharply by its own weight when a fixing screw is loosened. And

In addition, when the base is of a clip type, the fixing direction of the base itself is not determined, so that there is a problem that an appropriate air blowing direction cannot be obtained by the conventional rotation only in the horizontal direction and the elevation direction. It is required that the blowing direction can be properly adjusted without depending on the fixing direction of the table.

An object of the present invention is to solve such a conventional problem, and it is an object of the present invention to provide a wind direction adjusting device for a fan capable of properly adjusting a blowing direction without depending on a fixing direction of a base. I have.

[0017]

SUMMARY OF THE INVENTION In order to achieve the above object, a wind direction adjusting device for a fan according to the present invention has a neck piece for supporting a blower, a shaft section mounted on the neck piece, and a spherical section at the other end. A support shaft provided with a support shaft rotatably supporting the spherical portion of the support shaft, the support column is engaged with an upper surface of the spherical portion of the support shaft, and a lower surface of the spherical portion. And a fixing screw screwed into a side surface of the cylindrical metal fitting, and a tip of the fixing screw abuts an inclined portion provided on the metal fitting, and the cylindrical metal fitting and the metal fitting are supported by the support shaft. The spherical part is sandwiched.

According to the present invention, by means of the above-mentioned means, the direction around the neck can be set to any of 360 degrees around the circumference, and the direction of the blower does not change with respect to the base even when tilted. A device is obtained.

Another means is that the cylindrical metal fitting has an opening at an upper portion which is larger than the outer diameter of the shaft portion of the support shaft, and the shaft portion contacts the opening portion in any direction around the entire circumference. The inclination can be set within the range of contact.

According to the present invention, a wind direction adjusting device for a fan can be obtained which can adjust the direction of the neck circumference and the elevation direction at once and can be downsized.

Another means is to form a groove continuous with the opening on the side surface of the cylindrical metal fitting so that the shaft of the support shaft can slide in the groove around the spherical portion of the support shaft. .

According to the present invention, a wind direction adjusting device for a fan which can change the elevation angle by 90 degrees or more can be obtained.

Further, another means has a cap provided so as to cover the outside of the cylindrical metal fitting, and a groove fitting part formed in the cap in accordance with a groove part of the cylindrical metal fitting. The width dimension is smaller than or equal to the outer diameter dimension of the shaft portion of the support shaft.

According to the present invention, it is possible to obtain a wind direction adjusting device that does not bend sharply by its own weight when the fixing screw is loosened.

Further, another means includes a support column for rotatably supporting the spherical portion of the support shaft, a rotation unit provided below the support column, and the support column via the rotation unit. It has a base rotatably supported, and a rotation center point of the spherical portion of the support shaft is provided on a rotation center axis of the support column.

According to the present invention, it is possible to obtain a wind direction adjusting device capable of appropriately adjusting the blowing direction without depending on the fixing direction of the base.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention provides a neckpiece for supporting a blower, a support shaft having a shaft attached to the neckpiece and having a spherical portion at the other end, and rotating the spherical portion of the support shaft. A supporting column for movably supporting the supporting column, the supporting column engaging with an upper surface of a spherical portion of the support shaft, a receiving portion engaging with a lower surface of the spherical portion, and a screw on a side surface of the cylindrical member. A fixing screw is provided, and a tip of the fixing screw abuts on an inclined portion provided on the metal fitting, and the cylindrical metal fitting and the metal fitting hold the spherical portion of the support shaft, and tighten the fixing screw. When the tip of the support comes into contact with the inclined portion of the metal fitting, the cylindrical metal fitting is lowered with respect to the metal fitting, and the spherical part of the support shaft is sandwiched from above and below, so that the support shaft is fixed.

According to a second aspect of the present invention, the cylindrical metal fitting has an opening at an upper portion which is larger than an outer diameter of a shaft portion of a support shaft, and the shaft portion has the opening portion in any direction around the entire circumference. The spherical portion of the support shaft is supported by the receiving bracket, and the shaft portion of the support shaft rotates through the opening of the cylindrical bracket in any direction around the entire circumference of the cylindrical bracket. This has the effect that the shaft can be tilted and supported within the range where the shaft contacts the opening.

According to a third aspect of the present invention, a groove continuous with the opening is formed on the side surface of the cylindrical metal fitting so that the shaft of the support shaft can slide on the groove around the spherical portion of the support shaft. The spherical portion of the support shaft has an effect that the shaft portion of the support shaft moves along the groove of the tubular metal fitting and rotates to a substantially right angle with respect to the support column while being supported by the receiving fitting.

According to a fourth aspect of the present invention, there is provided a cap provided so as to cover the outside of the cylindrical fitting, and a groove fitting portion formed in the cap in accordance with a groove of the cylindrical fitting. The width of the shaft is smaller than or equal to the outer diameter of the shaft of the support shaft.When the fixing screw is loosened, the shaft of the support shaft slides while being pressed by the groove fitting part. It has the effect of moving slowly downward.

According to a fifth aspect of the present invention, there is provided a supporting column for rotatably supporting a spherical portion of a supporting shaft, a rotating unit provided below the supporting column, and the supporting unit via the rotating unit. It has a base that pivotally supports the column, and has a rotation center point of the spherical portion of the support shaft provided on the rotation center axis of the support column. Even after the rotation in the direction and the elevating direction is fixed, the support pillar can be rotated with respect to the base to change the direction of the blower.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0033]

【Example】

(Embodiment 1) As shown in FIGS. 1 and 2, a neck piece 1 for supporting a blower (not shown) is supported by a metal support shaft 2, and the support shaft 2 is a support column 12 having an upper opening.
It is rotatably supported on the shaft. The support shaft 2 includes a shaft portion 2a inserted into the neck piece 1 and a spherical portion 2b at the lower end.

The support column 12 projects from the shaft 2a of the support shaft 2 upward and encloses the spherical portion 2b with the curved surface portion 3a. The metal support 3 supports the spherical portion 2b with the engaging portion 4a. , And a cap 11 that covers the outer surface of the cylindrical metal fitting 3.

The metal fitting 3 accommodates the metal fitting 4, and the inclined part 4 b is formed on the side surface of the metal fitting 4. A fixing screw 5 is screwed into the side surface of the tubular metal fitting 3 through the cap 11, and a tip 5 a of the sharpened tip of the fixing screw 5 is formed into an inclined portion 4 b of the receiving metal 4.
, And is pressed. The tube fitting 3 is connected to the base 13 by screws 7.

In the above configuration, when changing the direction of the air blower, first loosening the fixing screw 5 and the spherical portion 2 of the support shaft 2
b can be freely rotated, and then the direction of the blower is determined by the user's hand, and the fixing screw 5 is tightened.

At this time, the tip 5a of the fixing screw 5 comes into contact with and presses against the inclined portion 4b of the metal fitting 4, and the metal fitting 4
Is connected to the base 13, so that the cylindrical metal fitting 3 provided substantially integrally with the fixing screw 5 relatively moves slightly downward. Therefore, the spherical portion 2b of the support shaft 2 held between the curved surface portion 3a of the cylindrical metal fitting 3 and the engaging portion 4a of the metal fitting 4 is fixed by receiving pressure from above and below.

In the present embodiment, the metal fitting 3 is connected to the base 13 to move the cylindrical fitting 3 slightly. However, the cylindrical fitting 3 is connected to the base 13 to move the fitting 4 slightly. Even so, there is no difference in operation and effect.

(Embodiment 2) FIG. 3 shows an inclined engagement state of the support shaft 2. As shown in FIGS. 1 to 3, an opening 3b is provided at the upper part of the cylindrical metal fitting 3, and the inner diameter is supported. It is larger than the outer diameter of the shaft portion 2a of the shaft 2.

The wall surface of the opening 3b is formed in a mortar shape. When the shaft portion 2a is inclined up to 15 degrees in all directions around the spherical portion 2b, it comes into contact with the wall surface of the opening 3b. I have.

In the above configuration, the hemispherical portion 3 of the cylindrical metal member 3
a fixed shaft 2 clamped by an engaging portion 4a of
When the fixing screw 5 is loosened, the shaft 2a is rotatable in all directions with respect to its axis, but the shaft 2a is further tilted about the spherical portion 2b until it comes into contact with the opening 3b. Can be done.

At this time, by setting the blower to the direction and inclination of the user's preference and tightening the fixing screw 5, it is possible to simultaneously set the direction around the neck and the elevation direction.

(Embodiment 3) FIG. 4 shows a state in which the support shaft is slid at a substantially right angle along the groove. In FIGS. 1 to 5, a groove continuous with the opening 3b is provided on the side of the cylindrical fitting 3. 3c, the groove width is larger than the outer diameter of the shaft portion 2a of the support shaft 2, and the length of the groove extends below the center of 3a.

In the above configuration, the inclination angle of the support shaft 2 is restricted by the contact of the shaft portion 2a with the opening 3b.
By sliding along c, it can be fixed by sliding at a substantially right angle until it comes into contact with the end face of the groove 3c. At this time, fixation at an arbitrary position until sliding at a substantially right angle is also possible.

The support shaft 2 is also rotatable 360 degrees around the axis of the shaft portion 2a.
c at the position where it slides at a substantially right angle until it contacts the end face.
By rotating about a, the blower portion supported by the neck piece 1 can be directed in any direction, such as directly below, directly above, or arbitrarily.

(Embodiment 4) FIG. 4 is a side sectional view in which the support shaft 2 is rotated substantially at right angles, and FIG. 5 is a front view thereof. As shown in FIG. 1 to FIG.
A groove fitting portion 11a parallel to the groove 3c is provided, and the width thereof is smaller than the outer diameter of the shaft portion 2a of the support shaft 2. The cap 11 is formed of a material having elasticity such as a synthetic resin.

In the above configuration, when the shaft portion 2a is moved along the shaft fitting portion 11a in order to change the direction of the blower, the shaft fitting portion 11a is elastically deformed. Therefore, the moving speed decreases. Therefore, when the position of the center of gravity of the blower is off the center of the spherical portion 2b of the support shaft 2 and on the side of the groove fitting portion 11a, the shaft 2a of the support shaft 2 rotates at a rapid speed due to the weight of the blower. Can be prevented.

(Embodiment 5) In FIGS. 1 and 2, the support column 12 rotatably supports the spherical portion 2b of the support shaft 2.
At least the blowing direction of the blowing section can be changed by 360 degrees.

The support column 12 is provided with a rotating means rotatably connected to the base 13. The turning means projects from below the base 13 and is screwed into the female screw portion 4c of the metal fitting 4; a support 6 rotatably provided with the screw 7 as a center axis; It comprises a spring 8 and a steel ball 9 mounted on the insertion hole 6a, and locking holes 10a of equal pitch formed on a locking plate 10 mounted on the base 13. When the steel ball 9 provided on the support 6 is fitted or moved into the locking hole 10a, the support column 12 can be stopped or rotated. The base 13 has a clip function for fixing the base 13 to an end face of a flat plate or the like.

In the above configuration, when adjusting the wind direction of the blower, first, the base 13 is fixed by the clip method, and the support shaft 2 provided on the support 12 is rotated or inclined to set the wind direction. Tighten the fixing screw 5 to fix it.

When the wind direction is temporarily changed in this state,
By rotating the support column 12 itself using the rotation means, the wind direction can be easily changed.

Further, even when the desired wind direction position cannot be obtained only by rotating the support shaft 2 around the spherical portion 2b, various wind directions can be set by combining with the rotation of the support column 12 itself. can do.

[0053]

As is apparent from the above embodiments, according to the present invention, the fixing screw is operated while the spherical portion of the support shaft mounted on the neck piece supporting the blower is held between the tube fitting and the receiving fitting. By doing so, it is possible to freely set the air blowing direction around the neck, and to provide an air direction adjusting device for a fan, which has the effect that the direction of the air blowing unit does not change even when the main body is tilted.

Also, since the upper portion of the cylindrical fitting has an opening larger than the outer diameter of the shaft portion of the support shaft, the wind direction adjusting device for the fan can be turned up and down in any direction of the entire circumference. Can be provided.

Further, a groove extending from the opening is provided on the side of the cylindrical metal fitting, and the shaft of the support shaft is slid along the groove so that the elevating direction can be turned over a wide range of substantially right angles. A wind direction adjusting device for a fan can be provided.

Further, by making the inner dimension of the groove fitting portion of the cap smaller than the outer diameter of the shaft portion of the support shaft, the groove fitting portion is
Since the shaft portion is pressed while being elastically deformed, even when the center of gravity of the blower portion is on the groove fitting portion side, it is possible to provide a wind direction adjusting device for an electric fan having an effect of slowly rotating.

Further, the support column for rotatably supporting the blower is rotatable with respect to the base, so that the wind direction of the blower can be easily adjusted even after the base is fixed to an end surface of a desk or the like. It is possible to provide a wind direction adjusting device for a fan which can be changed and has an effect of diversifying the method of setting the wind direction to facilitate the handling.

[Brief description of the drawings]

FIG. 1 is a sectional view of a wind direction adjusting device of a fan according to embodiments 1 to 5 of the present invention.

FIG. 2 is an exploded perspective view of the first to fifth embodiments.

FIG. 3 is a sectional view of an essential part of the second to fourth embodiments at the time of elevating rotation.

FIG. 4 is a sectional view of an essential part of the third embodiment and the fourth embodiment at substantially right angle rotation.

FIG. 5 is an external view of an essential part of the third and fourth embodiments.

FIG. 6 is an exploded perspective view of a conventional wind direction adjusting device of a fan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Neckpiece 2 Support shaft 2a Shaft part 2b Spherical part 3 Cylindrical metal fitting 3b Opening 3c Groove part 4 Metal fitting 4b Inclined part 5 Fixing screw 6 Support body (rotating means) 7 Screw (rotating means) 8 Spring (rotating means) 9 Steel Ball (rotating means) 10 Locking plate (rotating means) 10a Locking hole (rotating means) 11 Cap 11a Groove fitting portion 12 Support post 13 Base

Claims (5)

[Claims] 1. A neckpiece for supporting an air blower, a support shaft having a shaft attached to the neckpiece and having a spherical portion at the other end, and a support column for rotatably supporting the spherical portion of the support shaft. Having a cylindrical fitting that engages with the upper surface of the spherical portion of the support shaft, and a fitting that engages with the lower surface of the spherical portion,
A fixing screw is screwed onto a side surface of the cylindrical fitting, and a tip of the fixing screw contacts an inclined portion provided on the receiving fitting, and the cylindrical fitting and the receiving fitting sandwich a spherical portion of the support shaft. Wind direction adjustment device for electric fan. 2. A cylindrical fitting has an opening at an upper portion thereof which is larger than an outer diameter of a shaft portion of a support shaft, and the shaft portion is inclined in any direction around the entire circumference so as to come into contact with the opening portion. The wind direction adjusting device for an electric fan according to claim 1, wherein the wind direction adjusting device is enabled. 3. An electric fan according to claim 1, wherein a groove is formed on a side surface of the cylindrical member so as to be continuous with the opening, and the shaft of the support shaft can slide in the groove around the spherical portion of the support shaft. Wind direction adjustment device. 4. A cap provided so as to cover the outside of the cylindrical fitting, and a groove fitting part formed in the cap in accordance with a groove part of the cylindrical fitting, and a width dimension of the groove fitting part is set to a supporting shaft. 4. The wind direction adjusting device for an electric fan according to claim 3, wherein the outer diameter of the shaft portion is smaller than or equal to the outer diameter of the shaft portion. 5. A supporting column for rotatably supporting a spherical portion of a supporting shaft, a rotating unit provided below the supporting column, and a shaft rotatably rotating the supporting column via the rotating unit. The wind direction adjusting device for an electric fan according to any one of claims 1 to 4, further comprising a supporting base, wherein a rotation center point of the spherical portion of the support shaft is provided on a rotation center axis of the support column.