JPH0110478Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an improvement of a blower provided with a rotation motor for rotating a wind direction changing grill.

[Conventional technology]

FIG _. 11 is a sectional view showing a conventional grill drive device for a room cooler disclosed in, for example, Japanese Utility Model Publication No. 40-5404 _. Grills A ₃ are arranged in an inclined manner at a predetermined angle and are rotatably mounted on a supporting frame A ₄ via a central rotation line A ₆ rotatably mounted via a bearing A ₅ . The leg rod of actuator A ₁₀ supports the rotation axis A ₉ of transmitter A ₈ that contacts the circumferential side A ₇ of A ₃
Guide rods A ₁₂ , A ₁₂ with A ₁₁ , A ₁₁ fixed in support frame A ₄
The springs A ₁₃ , A ₁₃ are elastically supported in the leg rods A 11 , A ₁₁ through the bearings A ₅ , and the springs A 13 , _{A 13} are separately inserted in the engagement notch A ₁₄ formed in the actuator A ₁₀ . The eccentric cam A ₁₈ of the operation shaft A ₁₇ , which is movably inserted and supported and has the knob A ₁₆ protruding outside the case A, is positioned, and a spring (not shown) is attached to the eccentric cam A 18, and the transmitter A is attached to the eccentric cam A ₁₈ . ₈ 's rotation axis A ₉ has a drive shaft A ₂₀ such as a wire shaft that is separately driven via a prime mover.
It is a concatenation of. In the figure, _A21 is the engaging surface of the engaging notch _A14 , and _A22 is the knob of the central rotation axis _A6 .

The conventional room cooler drive device is configured as described above, and the rotation of the knob A ₁₆ causes the actuator A ₁₀ to move.
The transmission element A ₈ is brought into contact with the peripheral side of the grill A ₃ to rotate the grill, or is brought into a non-contact state to prevent the grill from rotating.

[Problem that the invention attempts to solve]

In the conventional grill drive device as described above, the support frame
Leg rod A ₁₁ is loosely inserted into guide rod A ₁₂ fixed to A ₄ , elastically supported by spring A ₁₃ , actuator A ₁₀ is actuated by knob A ₁₆ , and transmitter A ₈ is placed on the circumferential side of grille A ₃ . The grill is rotated or stopped by contacting or not contacting the grill. For this reason, the transmitter
When A ₈ is not in contact, the grill A ₃ can rotate freely on the rotation axis A ₆ , and when the wind hits each wing piece A ₂ , the grill vibrates, and the grill rotates due to the force of the wind. However, there was a problem that the wind could not be continuously sent in a specified direction.

This idea was made to solve these problems; even when the grill is not rotated, it does not wobble, and the grill can be held in place without being rotated by the force of the wind. Aim to get a blower.

[Means for solving problems]

The blower according to this invention is provided with a spring that constantly presses a grill abutting portion of a rotating motor for rotating the wind direction changing grill against the wind direction changing grill.

[Effect]

In this invention, even when the rotation of the grill is stopped, the grill abutment part of the rotation motor is pressed against the circumference of the grill by a spring, so the grill can be rotated by the force of the wind. This prevents the grill from turning and holds the grill in place.

〔Example〕

1 to 10 show an embodiment of this invention. In the figures, a blower motor 17 is attached to the front case 1 via a motor mounting plate 42, and a push button switch 14 is attached to the third As shown in the figure, the fixing rib 35 provided on the front case 1 is fitted into the hole provided at one end of the mounting bracket 36 of the push button switch 14, and the mounting bracket 38 at the other end is screwed into the boss 37 provided on the front case 1. It is tightened at 39. The roller 7 that rotates the wind direction changing grille 3 is driven by a rotation motor 20 as shown in FIG.
The roller 7 is attached to the shaft 43 of the ninth
As shown in FIGS. 10 and 10, a cushioning material 55 made of rubber or the like is provided around the outer periphery of the hard part 53, and the hard part 53 has slip prevention holes 54 to prevent the cushioning material 55 from rotating. The buffer material 55 serves to prevent vibration of the motor 20 and to amplify the frictional resistance with the circumferential side 10 of the wind direction changing grille 3. The rotation motor 20 is attached to a mounting plate 21 with screws 40, and this is attached to a boss 52 provided on the front case 1 via a piece A18, and the rotation direction of the mounting plate 21 is changed with a spring 22, with a fulcrum part 44 as the center. It is moved to the grille 3 side and a certain load is applied to the circumferential side 19 to contact it. The time switch 13 is on the switch panel 12.
is installed. This switch panel 12 is constructed by sliding the ribs 45 of the switch panel 12 into the guide grooves 46 and 47 of the front case 1 and back case 2, respectively, as shown in FIG. being held in place. The blade 8 is attached to the motor 17 by a spinner 9, and the guard 10 is attached by fitting the fixing rib 11 into the attachment hole 48 of the back case 2. A metal 15 serving as a bearing is incorporated into the grille 3, and the sliding part 1 of the front case 1
The metal portion 15 is fitted into the grill knob 4, and a plate spring 23 is attached to the grill knob 4 with screws as shown in FIG. This plate spring is provided with a rotation prevention hole 25 and is prevented from rotation by a stopper 26. The wind direction changing grille 3 is assembled into the plate spring 23 of the grille knob 4 and the front case 1. front case 1
The back case 2 is reinforced by the support parts 34 and 49 of the front case 1 and the back case 2 at the guide part 33 of the stand 5, as shown in FIG. Insert front case 1 and back case 2 into hole 32 of stand 5.
The fixed leg parts 50 and 51 are inserted, and the stand 5, front case 1, and back case 2 are fixed. Two convex portions 31 are symmetrically provided on the stand 5, into which the concave portions 28 of the piece 6 are incorporated. Piece 6 configured as shown in Figures 7 and 8
The round portion 27 is supported by a stopper hole 30 of the stand 5. Further, when the round portion 27 is removed from the stopper hole 30, the spring portion 29 of the piece 6 is deformed and removed.

In the blower configured as described above, the mounting plate 21 always tries to move toward the wind direction changing grille 3 side by the spring 22. As a result, the roller 7 of the rotation motor 20 presses the circumferential side of the wind direction changing grille 3 with a predetermined force, and by driving the rotation motor 20, the roller 7 rotates.
This is transmitted to the wind direction changing grille 3 and the grille is rotated to continuously change the wind direction.

On the other hand, by stopping the power supply to the rotation motor 20, the roller stops and the wind direction changing grill 3
stops. At this time, since the roller is pressed by the spring 22 against the circumferential side of the wind direction changing grille 3, the wind direction changing grille 3 is held at a predetermined position without being rotated by the wind. Furthermore, since the roller presses the circumferential side of the wind direction changing grille as described above, there is no rattling and no vibration noise is generated.

[Effect of idea]

As explained above, this invention consists of a case provided with a ventilation passage, a wind direction changing grill rotatably provided in the ventilation passage, and a mechanism that contacts the circumferential side of the wind direction changing grill and rotates the wind direction changing grill. The wind direction changing grill can be rotated by the force of the wind even when the rotating motor is not in operation. It has the advantage of being able to be held in a predetermined position without having to do so.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of this invention, Fig. 2 is a plan view of the main part of this invention, and Fig. 3 is an exploded perspective view showing an embodiment of this invention.
4 is a perspective view of the switch panel, FIG. 5 is a sectional view of the grill knob, and FIG. 6 is a sectional view of the stand. Figure 7 is an exploded perspective view of the stand, and Figure 8 is an assembled perspective view of the stand.
FIG. 9 is a front view of the roller, FIG. 10 is a side sectional view of FIG. 9, and FIG. 11 is a sectional view of a conventional example. In addition, the same reference numerals in each figure indicate the same parts, 1 is the front case, 2 is the back case, 3 is the wind direction changing grill, 7 is the roller, 17 is the blower motor, 2
0 is a rotation motor, 21 is a mounting plate, and 22 is a spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A case provided with a ventilation passage, a wind direction changing grill rotatably provided in the ventilation passage, and a wind direction changing grill that comes into contact with the circumferential side of the wind direction changing grill and rotating the wind direction changing grill. What is claimed is: 1. A blower comprising: a rotating motor for moving the rotating motor; and a spring for constantly pressing a portion of the rotating motor that contacts the wind direction changing grille against the wind direction changing grille. (2) Registration of a utility model characterized in that a rotation motor is attached to a mounting plate, the mounting plate is formed to be movable toward the wind direction changing grille, and a spring is attached to the mounting plate. An air blower according to claim 1.