JPS60233393A - Fan - Google Patents

Abstract

PURPOSE:To reduce a space to be secured behind the fan upon oscillating it by a method wherein a guard body is oscillated about the axis thereof and the center of oscillation is set at the front half of the guard body while the guard body, located before the axis in a prior art, is located at the rear side of the axis. CONSTITUTION:When an oscillating motor device 18 is operated, the main body 4 of the fan including the guard body 9 is oscillated about the axis 15a, inserted into and supported by a bearing body 6. The axis 15a is formed at the lower half side of the guard body 9 and the center of oscillation is set at the front half of the guard body 9. According to this constitution, the necessary dimension from the fore side to the rear side of the oscillating space becomes (b) from the front surface of the guard body 9 toward the rear side thereof. The dimension (b) becomes about 3/4 as compared with the same dimension in prior art. Accordingly, the rear space, necessary for the oscillating motion, may be reduced. Further, the necessary space at right and left sides of the fan may also be reduced.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a blower that causes indoor air to flow.

(b) Prior art As a technology prior to the present invention, Utility Model Application No. 57-184298
Publication No. (hereinafter referred to as conventional example 1), Utility Model Application No. 58-1423
Publication No. 93 (hereinafter referred to as conventional example 2) and Utility Model Application No. 58-3
No. 0797 (hereinafter referred to as conventional example 3). In Conventional Example 1, the lower part of the fan body is supported, and although the elevation angle can be adjusted, the fan does not oscillate and the air blowing range is narrow. Furthermore, in Conventional Example 2, a rotary grill is placed in front of the air blowing blade in order to expand the air blowing range, but the air blowing range is narrower than that of the commonly used 88 aircraft. Furthermore, as is clear from the specification, in Conventional Example 3, the fan body swings from side to side like the popular electric fan, but since the center of swing of the fan body is at the center of the lower part of the fan guard, the fan body swings from side to side. The movement range when shaken up is increased.

The point that the conventional blower has a large movement range when the head is oscillated will be explained based on FIG. 9. In a conventional general electric fan, a guard body (41) is formed at the front part of the electric motor part (40), and a swing center (42) is formed at the lower front part of the electric motor part (40). Therefore, while the left and right oscillation is 60 degrees left and right, so-called 12
When the head is tilted upward with an opening angle of 0 degrees, the guard body 4
1) moves as shown by the two-dot chain line, and the front and rear dimensions are a when the front side of the guard body (41) is used as a reference when air is being blown forward.
only required. Because the judicial a is large, the tabletop,
In the case of a tatami room fan, a dimension a is required at the rear, and in the case of a wall-mounted fan, the fan must be supported with a protrusion of a dimension a from the wall surface. For example, if the diameter of the blower blade is 30
cm, and the outer diameter of the guard is 38 cm, the helical modulus a is 28
cm is required. Therefore, in consideration of improved usability, a blower with a small dimension a has been desired, and in particular, it has been desired that a wall-mounted fan should have a small amount of protrusion from the wall surface.

(C) Purpose of the Invention The object of the present invention is to provide a blower that requires less space at the rear when the blower is oscillated.

2) Structure of the Invention The present invention comprises a guard body in which a part of a motor for driving a blower blade is formed in the center, a shaft part vertically disposed on the front half side of the lower part of the guard body, and a shaft part that pivots on the shaft part. By forming a blower with a supporting stand body and a swing device that drives the guard body to swing, the Gar F body described in iii. By making it a part, the guard body, which was conventionally placed one piece in front of the shaft part, is now located at the rear.
It is configured so that

(E) Example The first example shown in FIGS. 1 to 5, and the second example shown in FIG.
EXAMPLE The present invention will be explained based on a third example shown in FIGS. 7 and 81A.

A first example will be described.

The blower (1) consists of a stand (2) that is equipped with a switch, etc. that is attached to a wall surface (W>), and a neck piece (3) that is pivoted to the two prongs at the end of the stand (2) so that the angle of elevation and elevation can be adjusted.
), and a blower main body (4) which is pivotably supported on the neckpiece (3). The stand (2) is completely molded from synthetic resin, and its opening is closed with a back plate made of sheet metal. The above-mentioned Lee Tuk Piece (3) is the above-mentioned stand (
2> is held at the appropriate rotation operation position,
For its structure, a conventionally known elevation angle adjustment device is used. The neck piece (3) has a shaft support hole extending downward in the shape h (1), and the neck piece (3) has a shaft support hole extending downward.
A bearing body (6) having a flange (5) formed on the L surface is inserted. The bearing body (6) can rotate and is held at an appropriate rotational position by a locking body (7) consisting of a spring and a locking body. A pivot pin (8) is provided protruding from the -1 side peripheral edge of the flange (5).

The blower body (4) is a guard body (9) made of synthetic resin.
and a motor (12) fixed to a motor mounting part (10) formed in the center of the guard body (9) with a screw (11).
), and an air blower mounted on the rotating shaft of the electric motor (12).
A screw (
A screw (
17), and a Suita body (19) attached to the front part of the guard body (9). ■1.++ The support shaft body (15) is the bearing body (6
), the shaft part (15a) can be inserted into the shaft (15a)
) and a mounting plate (15b) fixed to the -1-1 end of the plate. The claw side plate portion (15b) is made of sheet metal and is located close to the tip of the pivot pin (8) of the collar portion (5). The guard body (9) includes a ring part (9a) surrounding the blower blade (13), a guard part (9b) formed in a dome shape at the rear edge of the ring part (9a), and a guard part (9b) that surrounds the blower blade (13).
) the motor mounting part 1 part (10) opened to the mI force formed in the center of the guard part (9b); The attachment part (9c) of the m-shaped blowing body (19) formed on the πI edge of the ring part (9a), and the ring part (9a)
A fixing portion (9d) of the pivot shaft (15) is formed on the lower outer side of the pivot shaft (15). The guard body (9b) extends downward from the motor mounting part (10), reaches the mounting part (16), and extends to the lower rear edge of the ring part (9a). 9) Open groove on the inner surface (2
0) is formed. The electric motor (
12) and the electric cord (2) to the oscillating motor device (18).
1) is wired. When the oscillating motor device 18) is attached to the mounting portion (16), its output shaft protrudes downward. A force l body (22) is attached to the output shaft, and a nuclear force l
, one end of a swing link (23) is pivotally supported on the body (22). The other end of the swing link (23) is pivotally supported by the pivot pin (8). The mounting portion (16) and the lifting link
23) is covered with a cover (24).

When the oscillating motor device (18) is put into operation, the blower main body (4) oscillates from side to side about the shaft (15a).

Note that the Suita body (19) is formed of a guard body that has a large number of crosspieces and has low ventilation resistance.
It is not particularly limited. For example, the blowing body may be a wind direction changing body that is rotationally driven by wind pressure or a motor, or a large number of seven wind direction panels may be arranged vertically or horizontally, and the blowing direction can be controlled manually or automatically. It may be possible to change it.

Further, the electric motor (12) may be attached to the guard body (9) by attaching it from the outside to a mounting portion opened to the outside 2, and covering the rear surface with a cover. Furthermore, the swing motor device (18)
may be attached to the guard body (9) so that the output shaft protrudes from inside the guard body. Although the embodiment is a wall-mounted blower, the stand shape may be a floor-standing type.

A detail (15a) is formed on the lower front half side of the guard body (9), so that the guard body (9) is formed as shown in FIG.
) The front and rear dimensions of the swinging space required from the front to the rear are (
b). The dimension A is three-quarters larger than the conventional dimension a in the comparison between FIGS. 5 and 7. For example, when the diameter of the blowing blade shown in the conventional example is 30 cm and the outer diameter of the guard body is 38 cm, the dimension is 22 cn+. The swing angle in this case is 120 degrees.

In other words, in order to understand that the front and rear dimensions of the rear space with respect to the front surface of the guard body (9) of the present invention are reduced, it is unlikely that this type of head swing will normally be performed. For example, when the head is oscillated by 180 degrees, in the case of the present invention shown in FIG. 5, the dimension is half the outer diameter of the guard body (9). However, in the conventional technique shown in FIG. 9, the dimension a is half the outer diameter of the guard body (41).
〉 thickness is added. Therefore, according to the present invention, the rear space can be reduced by the thickness dimension of the guard body (9>).Furthermore, as can be understood by comparing FIG. 5 and FIG. It can be understood that the space required on the left and right sides is also smaller.The ability to reduce the width of the left and right spaces is effective when vertical swinging is performed and when the elevation angle is adjusted. In the example, the stand body is formed by the stand (2) and the neck piece (3). However, if the elevation angle is not to be adjusted, the neck piece (3) is not necessary and the stand body consists of only the stand (2). is formed.

A second example will be explained. Components that are the same as those in the first embodiment are denoted by the same reference numerals and explanations will be omitted.

An oscillating gear device (30) that can be driven by the electric motor (12) is formed at the rear of the electric motor (12).The oscillating gear device (30) is formed on the rotating shaft of the electric motor (12). It consists of a worm (31), a ohm wheel that meshes with the worm (31), a pinion (32) that rotates with the rotation of the ohm wheel, and a cam gear (33) that meshes with the pinion (32). The above ohm (31)
The ohm wheel is disposed at the rear of the electric motor (12), and the pinion (32) and cam gear (33) are disposed at the rear lower part. The two ohm wheels and pinions (
32) can be connected to the long shaft (34), and the knob (3
The clutch mechanism is engaged at step 5). The oscillating gear device (30) is connected to the guard body (9).
It is stored in a storage section (36) formed at the lower rear surface of the.

Since the swinging device is formed using the electric motor (12) as a driving source, there is no need for a separate motor device as in the first embodiment.

It should be noted that the present invention is not limited to the above-described embodiments, and various structures can be considered as long as they do not deviate from the structures set forth in the claims in terms of their functions and effects.

For example, the electric motor (12 inches) that drives the blower blades (13) normally uses an induction motor in a blower;
In recent years, as microcomputer-based control and IC-based control have become commonplace, it has become more effective to drive motors with direct current rather than alternating current. Therefore, by using a CDC motor as the electric motor (12),
It is particularly effective in the present invention to reduce the size and store it in the central boss of the blower blade (13), thereby eliminating the protrusion of the electric numeral motor mounting part. Become. In addition, a force shaking device is formed in one part of the guard body (9).
By forming the blade body (9) into the A.7 piece (3>), the blade body (9) can be formed without a protrusion. In assembling the oscillation heptad device (18) into the neckpiece (3), the cam body <22) and the oscillation link <2
In 3), τ the guard body (9) may be made to swing;
As shown in the third embodiment shown in FIGS. 7 and 8, the output shaft of the oscillating morph device (18)
18a) and directly swing the guard body (9).
C is also good. In this case, the oscillating motor device (18) is a synchronous motor whose rotation direction is free, and the guard body (9)
A protrusion (37) is formed on the neck plate (3), and a swing range regulating protrusion (39) is formed on the cover plate (38) of the neck/kubis (3) so as to perform a left stone swing. The detailed structure and operation of the third embodiment are disclosed in Japanese Patent Application Laid-Open No. 53-25
It is disclosed in Publication No. 169. In this third embodiment, the shaft portion (
15a) is formed on the lower front half side of the guard body (9).The feature is that it is formed as in JP-A No. 53-25169.

Furthermore, the oscillating gear device 4 (30
), the rotational force of the electric motor (12) is
The rotational force is transmitted to the lower part of the guard body (9) through the TiI long axis (34), which is a conventionally known rotational force transmission structure fL.
However, the present invention is not particularly limited to the structure of this embodiment.

A) Effects of the Invention The present invention provides effects such as making it possible to reduce the rear space necessary for the head vibration operation by making the lower front half of the guard body the center of the head vibration.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a side sectional view of the blower, and FIG. 2 is a partially sectional front view with the blower removed and some parts omitted. , Fig. 3 is a rear view with the cover etc. of the blower body removed and partially omitted, Fig. 4 is a bottom view of the same, Fig. 5 is an explanatory diagram of the vibration operation, and Fig. 6 shows the second embodiment. FIG. 7 is a cross-sectional view of the main part showing the third embodiment, FIG. 8 is a fL view of the same, and FIG. be. (2)...stand (stand toy book), 3)...neckpiece (stand body), (9)...guard body, (
12)...Electric motor, (13)...Blower blade, (15a
)...Shaft part. Applicant Koyo Heavy Industries Co., Ltd. Agent Patent Attorney Shizuo Sano Figure 3 15a

Claims (1)

[Claims] 1. A guard body in which a mounting portion for an electric motor that drives a blower blade is formed in the center, a shaft portion vertically disposed on the lower front half side of the guard body, and a stand that pivotally supports the shaft portion. A blower comprising a body and a swinging device for driving the guard body in advance. 2. The blower according to claim 1, wherein the stand body is formed of a neck piece for pivotally supporting a shaft portion, and a stand for pivotally supporting the neck piece so as to be adjustable in elevation and elevation. 3. The blower according to claim 1 or 2, wherein the swinging device is formed in the guard body. 4. The blower according to claim 1 or 2, wherein the swinging device is formed on a stand body. 5. The blower according to claims 1 to 4, wherein the oscillating device is formed by a oscillating motor device. 6. The blower device according to claims 1 to 3, wherein the swinging device is formed by a gear device that reduces the output of the electric motor.