JP3483864B2 - Duct switching damper device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper structure for switching air circulation paths. Particularly, the present invention relates to a damper device for switching between an exhaust path and a direct exhaust path via a deodorizing device in a garbage disposal.

[0002]

2. Description of the Related Art Conventionally, a damper device driven by a motor has been already developed, but there has been a problem that when the rotation direction of the motor is reversed, the movement of the damper is reversed or the damper becomes inoperable.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a damper device which operates a rocking body in a predetermined direction regardless of the rotation direction of a rotor and can reliably switch a ventilation path by a damper. And

[0004]

In order to solve the above-mentioned problems, according to a first aspect of the present invention, in a damper device in which a rotor swings a rocking body and a damper which moves integrally with the rocking body switches a distribution path, The oscillating body axis and the rotor axis are arranged on the center line of the oscillating angle of the moving body, and the contact point with the rotor is provided symmetrically in two places on the oscillating body. It was formed on both sides of the line connecting the child shafts, and the other left and right places were formed on both sides of the extension line of the oscillator shaft and the rotor shaft.
With this configuration, the oscillating body makes a predetermined movement regardless of whether the rotor rotates clockwise or counterclockwise.

According to a second aspect of the present invention, the left and right limit switches for controlling the rotation of the rotor are provided by attaching the other end of the tension spring whose one end is fixed on the extension line of the oscillator shaft and the rotor shaft to the center end of the oscillator. Since the oscillating body operates at the left and right end positions of the oscillating range, when the oscillating body passes the center of the oscillating angle by the rotor, the force of the spring moves to the left and right end positions of the oscillating range, and the limit switch rotates the rotor. The rotation of can be stopped.

[0006]

1 to 4, air is taken in through an intake port 1
A damper 7 for switching between a path that enters from the exhaust port 4 through the duct 2 and the duct 3 and a path that allows air to enter from the intake port 1 and exit the exhaust port 6 through the duct 2 and the duct 5, and the damper. A swing body 8 for operating the swing body 7, a rotor 10 rotated by a motor 9 for swinging the swing body 8, and a spring 11 for pulling the swing body 8 in one direction are shown. The damper 7 in the duct 2 and the oscillating body 8 arranged outside the duct integrally oscillate 90 degrees left and right about the shaft 81, and the rotor 10 rotates clockwise or counterclockwise about the shaft 101. To do.

The oscillating body 8 has a substantially symmetrical C-shape, has a shaft 81 in the center, and locks the spring 11 at the tip 84 of the center line on the left and right, and opposes the tip 84 with respect to the axis 81. A left piece 82 and a right piece 83 are formed symmetrically on the side.
The left piece 82 and the right piece 83 form a left piece element 822 and a right piece element 832 as a contact point with the rotor 10 so as to be between the shaft 81 and the axis 101, and the axis 81 of the shaft 81 with respect to the axis 101. A left side end 821 and a right side end 831 are formed on the opposite side.
Left element 822 and right element 832, left element 821 and right element 8
31 is bilaterally symmetrical.

Next, the rotor 10, the oscillator 8 and the damper 7
The operation of will be described. In FIG. 1, the damper 7 is the duct 2
To duct 5 is closed, and air is shown flowing from duct 2 to duct 3. When the operation panel switch (not shown) is turned on in this state, the shaft 1 of the motor 9
The rotor 10 attached to 01 starts rotating clockwise or counterclockwise.

When the rotor 10 turns clockwise,
The rotor 10 contacts the left one end 821 of the left piece 82 of the rocking body 8, and the rocking body 8 and the damper 7 move clockwise around the shaft 81. When the rotor 10 rotates counterclockwise, the rotor 10 hits the left half element 822 of the left piece 82 of the rocking body 8 and the rocking body 8 and the damper 7 move clockwise around the shaft 81. (Fig. 2)

When the rotor 10 further rotates clockwise or counterclockwise, the oscillator 8 and the damper 7 move further clockwise, and the oscillation angle of the oscillator 8 exceeds 1/2.
By the pulling force of the tension spring 11 attached to the fixed point 11a on the extension line between the tip 84 of the oscillating body 8 and the shaft 81 from the tip 84 of the oscillating body 8 so as to have the longest extension at the center of the oscillating angle, the oscillating body 8 and the damper 7 are pulled clockwise. (Figure 3)

The damper 7 then closes the passage leading from the duct 2 to the duct 3, and the air exits from the duct 2 through the duct 5 and the exhaust port 6. The left piece 82 of the rocking body 8 hits the limit switch 13 to turn off the motor 9 to stop the rotation. (Fig. 4) Next, turn the switch on the operation panel to O again.
When set to N, the state shown in FIG. 4 shifts to the state shown in FIG. It is also possible to set the timer and return to the state of FIG. 1 from the state of FIG. 4 when a certain time has elapsed.

FIG. 5 is a view showing that the damper device B of the present invention is used in the garbage processing machine. Air in the processing tank A for processing the garbage is sent to the damper device B through the duct A1. The damper device B switches between direct exhaust from the duct B1 and exhaust from the duct C1 via the deodorizing device C.

EFFECTS OF THE INVENTION Even if the rocking body that operates integrally with the damper is stopped on either side of the rocking range, it is stopped by rotating the rotor clockwise or counterclockwise. Can be rocked to the other side. That is, if the rotor is rotated by the motor, it is not necessary to consider the rotation direction of the motor, and an inexpensive motor can be used. Further, since the damper is switched regardless of the rotation direction of the rotor, the control of the damper does not become complicated, and it can be easily controlled by turning the switch ON / OFF or setting a timer.

[Brief description of drawings]

FIG. 1 is a sectional view showing an operating state of a damper.

FIG. 2 is a sectional view showing an operating state of a damper.

FIG. 3 is a sectional view showing an operating state of a damper.

FIG. 4 is a sectional view showing an operating state of the damper.

FIG. 5 is a schematic diagram of a damper device incorporated in a garbage processing machine.

[Explanation of symbols]

1 ... Intake port 2, 3, 5 ... duct 4, 6 ... Exhaust port 7 ... Damper 8 ... Oscillator 9 ... Motor 10 ... rotor 11 ... Spring

Claims (2)

(57) [Claims] 1. A damper device in which a oscillating body is oscillated by a rotor and a distribution path is switched by a damper that moves integrally with the oscillating body. The contact points with the rotor, which are placed symmetrically in two places on each side of the oscillator, are formed on each side of the line connecting the oscillator shaft and the rotor shaft. A duct switching damper device characterized in that each position is formed on both sides of the extension line of the oscillator shaft and the rotor shaft. 2. A left and right limit switch for controlling the rotation of the rotor is provided at the other end of a tension spring, one end of which is fixed on an extension line of the oscillator shaft and the rotor shaft, at the center end of the oscillator. The duct switching damper device according to claim 1, wherein the damper switching damper device is provided so as to operate at the left and right ends of the swing range.