JPH01230390A - Rotary drum with automatic door opening/closing device - Google Patents

Abstract

PURPOSE:To release an operator from the troublesome door opening/closing operation or the position adjusting work of a drum opening section and improve the workability by automatically performing the automatic opening/closing operation of a drum door opening or closing the opening section of a rotary drum and the fixing of the rotary drum while the drum door is opened. CONSTITUTION:A rotary drum 2 is rotatably supported in a casing 1, a drum door 3 covering the opening section provided on the peripheral wall of the rotary drum is provided. A seesaw type door stopper 7 hooking the drum door 3 on the rotary drum 2 so that it can not be slid or moved is provided and arranged in a recessed stopper storage section 23 formed on the drum door 3. The rotating speed and the rotating direction of the driving motor 8 of the rotary drum are controlled by a control circuit 9. A door locking means 11 is arranged near the drum outer periphery in the casing 1 and performs the operation of the stopper 7. The control circuit 9 stops the motor 8 when the rotary drum 2 reaches the door opening/closing position and starts the operation of the door locking means 11 and moves a lock pin.

Description

Detailed Description of the Invention "Field of Industrial Application" The present invention is directed to a rotating drum with an automatic door opening/closing device, particularly a rotating drum used in a drum type washing machine or a drum type dryer, which has an opening in the peripheral wall of the drum. This invention relates to automation of the opening and closing of a rotating drum door, a part of which is opened and closed by a drum door.

[Prior Art] Conventionally, a rotating drum used in, for example, a drum-type washing/drying machine, has an opening formed in its peripheral wall as an opening for loading and unloading laundry, and in order to open and close this opening, the drum peripheral wall is used to open and close the opening. Two sliding drum doors are provided.

Fig. 11 shows a schematic perspective view of a conventional drum-type washer/dryer, in which a rotating drum (2) that performs the washing/drying process inside the casing (1) is rotatably supported. . The peripheral wall (2a) of the rotating drum (2) is provided with a drum door (3) that opens and closes the opening for loading and unloading the laundry. A latching tool (4) for locking to 2) is attached.

An opening (5) is provided in the upper surface of the casing (1), and an outer cover (6) for opening and closing the opening (5) is mounted on the right axis.

If so, the operator of such a drum-type washer/dryer must release the outer cover (6), release the latch (4) of the rotating drum (2), and slide the drum door (3). The drum is moved to open the laundry loading/unloading port of the drum and loading and unloading of laundry or drying items is performed.

In FIG. 11, other elements of the outer tank 5' are omitted for the sake of simplicity.

[Problems to be Solved by the Invention] However, in the apparatus using the rotary drum (2) provided with the conventional drum door described in -11, the operator has to manually open and close the door. There is a problem with poor workability.

In addition, if the closing operation of the drum U1 is not performed properly or if the user forgets to close it, the contents may be thrown out by rotating the drum, resulting in damage to the contents (or damage to the contents or due to other measures on the equipment). The problem is that there is a risk of damaging the department's profits.

-3= Furthermore, in the case of a rotating drum used in a drum-type washer/dryer as shown in Fig. 10, after releasing the outer cover (6), the drum door (3) is manually operated until it reaches the upper position. Not only is it necessary to open and close the drum door (3), which is a cumbersome task of rotating the rotating drum (2) and releasing the latch (4) to release the drum door (3), but also it is difficult to finish drying the culm. in some cases!・There was a problem that the surface of the ram was so hot that there was a risk of burns when manually opening and closing the door.

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a rotating drum equipped with an automatic door opening/closing device that can automatically open and close the drum door.

[Means for Solving the Problems] In order to achieve the above object, an automatic door opening/closing device according to the present invention (=one rotation drum is slidably arranged around one rotation of the rotation drum) and this It is a seesaw-shaped stopper provided on the drum door, and when the tail end -4 = is at the upper limit position i!', the drum door is in the 11 state of engagement with the rotating drum, and when it is at the middle position and the lower limit position, the drum door is in the 11 state. A door sill/flange that makes the door non-movable with respect to the casing at the same time when the door is in the unlocked state, and a drum position detection means that detects a predetermined position in the rotational direction of the rotating drum;
A control circuit that controls the drum drive unit to give the rotary drum a rotational operation to a door opening/closing position for opening and closing the drum door, and an opening/closing operation at a predetermined angle in a forward or reverse direction from the door opening/closing position. After moving the rotary drum to the first return opening/closing position, a first operation is performed in which the tail end of the door stopper is pushed and raised from the upper limit position to the F limit position before the opening rotation operation at the predetermined angle. , perform a second operation to return the tail end of the door stopper to the middle position before the closing rotation operation at the predetermined angle, and perform a third operation to return the tail end of the door stopper to the upper limit position at the end of the closing rotation operation r. a door locking means, a fitting portion provided on the drum door and pushed down at the same time as the first operation of the door locking means to cause a protrusion to protrude inward of the rotating drum; The present invention is characterized in that a hole is provided in the vicinity of the opening of the rotary drum so as to fit into the protrusion of the connecting part and to make the rotary drum immovable with respect to the casing.

[Function] According to the above configuration, the drum driving section is controlled by the control circuit to rotate the rotary drum to a predetermined position ii (door opening/closing position) for opening and closing the door, and first, by the first operation of the door locking means. Push the tail end of the raised door stopper to the lower limit position and lower it to the drum door. .

In other words, since the drum door is in the unlocked state, it is in a state where it can slide 6J relative to the rotating drum, and it is in a non-movable state with respect to gauging, so only the rotating drum can rotate. considered possible.

At this time, the door locking means pushes down the door stopper to the lower limit position and at the same time causes the protrusion of the fitting part provided on the drum door to protrude inward of the rotating drum.

In this state, the control circuit controls the drum driving section to rotate the rotating drum by a predetermined angle in the forward or reverse direction.・Ram opening 1'ii
One part can be opened and closed. That is, the drum door is kept in a fixed state, and the drum opening is covered by the drum door by rotating the rotary drum 1, etc., so that the closing + I = operation is performed and the drum is exposed. This causes an opening operation.

When this opening rotation operation is performed, the protrusion on the fitting portion side fits into the hole provided near the opening of the rotating drum.

This ensures that the rotating drum is not ijJ with respect to the casing.
It becomes a dynamic state.

In addition, before the I-ram door closes and rotates, the second operation of the door locking means locks the tail end of the door stopper at the middle stage (+'
Return to position. Then, by rotating the rotating drum by a predetermined angle in the forward or reverse direction, the closing rotation operation of the drum door is performed. Then, after the closing rotation operation is completed, the drum door is brought into the engaged state by the third operation of the door locking means.

As described in -1- above, according to the present invention, the drum door of the rotating drum can be opened and closed automatically, and unnecessary rotation of the rotating drum can be effectively prevented without using a brake means when the drum door is opened. can be prevented.

[Example] Hereinafter, an example in which the present invention is applied to a drum-type washer/dryer will be described based on the drawings.

FIG. 1 is a conceptual diagram showing the overall configuration of the present invention, in which a rotating drum (2) is rotatably supported in a casing (1), and an opening provided in the peripheral wall of the rotating drum is shown in FIG. A drum door (3) that can be covered is also provided.

] - The ram door (3) is provided with a seesaw-type door stopper (7) for locking the drum door (3) to the rotating drum (2) and preventing it from sliding. This door stopper (7) is arranged in a stopper storage section (23) which is a recess formed in the drum door (3), and a fitting section +a' ( 24
) squared (=1 squared (the specific shape will be described later).

The rotary drum is rotationally driven by a motor (8),
The rotational speed and direction of this motor (8) are controlled by a control circuit (9).

Further, (10) is a drum position detector that detects a predetermined position in the rotational direction of the rotating drum (2).
A magnetic sensor (not shown) is installed in the rotary drum, and a predetermined rotational direction position of the rotary drum is detected by inserting an iron (=J) into the boot portion of the rotary drum.

(11) is a door locking means, which is disposed near the outer periphery of the drum inside the casing (1). This door locking means (
11) is for operating the door stopper (7) (pushing down the tail end).

Figure 2 shows the attachment of the drum door (3) to the rotating drum (=
FIG. 1 is an explanatory diagram showing the first state, in which the drum door (3) is partially sunk in the peripheral wall of the rotating drum (2).
b) is placed in a position where it can be covered, and the rotating drum (
The opening (2b) can be opened and closed by sliding on the outer periphery of the opening (2b).

Fig. 3 shows a tilted view of the drum door (3), and sliding grooves (3a) are provided on both sides of the drum door (3). , the drum IJij (3) is slidably attached to the rotating drum (=
I get kicked.

Stopper storage area (23) on the -1- side of the door (3)
) is provided with a door stopper (7), and a claw part (7a) is formed at the tip of the door stopper (7).
The drum door (3) is attached to the rotating drum (2) by locking the door (7a) to the hook formed on the peripheral wall of the rotating drum (2).
2) to be fixed so as not to shift. The door stopper (7) has a splash handle (-1), and the door stopper (7) is normally set in the direction in which the claw part (7a) is hooked on the hook part of the rotating drum (2). (-1 force).Furthermore, a recess (7b) is formed at the tail end of the door stopper (7) against which the door locking means, which will be described later, is pressed. By pushing down, the claw part (7a) is separated from the hook part of the rotating drum (2) against the force of the spring (?l I!>5), and the drum door (3
) can be brought into a disengaged state with respect to the rotating I-ram (2).

Furthermore, stopper storage section (23) No J: Ri, i1
7. Direction of the concave portion (7b) of the collar ii! i: is provided with a drum lock opening (3b), which is a characteristic component of the Kinomitsukitsu. This drum lock opening (3b) can be opened by pushing the door stopper (7) further downward from the -1-arrangement release state from the position 7 by means of the door lock means +4. )
This allows the tail end of the drum to protrude toward the rotating I/ram (2) located below the drum door (3).

Fig. 4A is an explanatory diagram for explaining the state of the first fitting member (24) installed on the bottom side of the stopper storage portion (23) of the drum door (3). The fitting part (24) is formed of a plate cut 1, and the blade side end has a rotary driver (2), and the protrusion (24) protrudes inward. ) is formed, and is removed by being fixed to the other end or the bottom of the stopper storage part (23).This fitting part (24) is -
By pushing down from the 1st direction, it can be bent as shown by the broken line in the figure, and under normal conditions, it is set at the position shown by the solid line due to its springiness.

FIG. 4B is an explanatory diagram for explaining the small holes (2d) provided in the peripheral wall of the rotating drum (2).
A small hole (2d) is placed near the opening (2b) in the peripheral wall of 2).
or is formed. This small hole (2d) is located on the rotating drum (
2) When opened [to bring part 1 (2d) into the open state.
It is formed in a position where it can bloom in a).

FIG. 5 is an explanatory diagram that does not show the main components of the door locking means (11). In the figure, the lock pin (12) is connected to the rotating drum by the F part bearing (13) and the -1 part bearing (14). 2) Supported so as to be slidable back and forth in the direction.

(15) is a motor which is a driving source for moving the lock pin (12) back and forth, and a pulley (16) is attached to its main shaft (15a). A wire (17) is wrapped around the outer periphery of this pulley (16).
At both ends of the lock pin (12)
has been done. Therefore, the lock pin (12) can be moved forward and backward by rotating the pulley (16) in forward and backward directions.

In addition, a lower limit switch (18), a middle limit switch (19), and an upper limit I switch (20) are arranged to detect the upper and lower limits of the forward and backward movement of the lock pin (12) and to detect the middle position. The motor (15) is installed by detecting the movement of the switch actuator (21) attached to the lock pin (12).
) on/off and rotation.

The position of the lock pin (12) indicated by the broken line in the figure is the tenth position (X, ), and the position of the lock pin (12) indicated by the solid line is the middle position (Y). As a first operation, the door opening locking means (11) performs a -1 opening operation of pushing the lock pin (12) from the L limit position (X) to the D limit position (Z).

The lock pin (12) moves toward the J direction of the rotating drum 11.
1-Push the four parts (7b) at the tail end of the door stopper (7) mentioned above with the tip of the screw bin (12). Latch part (2C
) to leave.

FIG. 6 shows a state in which the lock bin (12) is further lowered from the middle position (Y) and moved to the lower limit position (Z).

By this downward movement to the door limit position (z), the lock bin (12) pushes down the recess (7b) of the door stopper (7) and moves from the drum lock open part (3b) to the four part (3b) which is the tail end of the door stopper. 7b) protrudes (in this way, the tail end of the door stopper (7)
According to the movement operation to the limit position, middle position, and lower limit A device, it is similarly set to the 10 position in 1-1).

In addition, the recess (7b) protruded by the lower limit rod device pushes the fitting part +J' (24) downward, and the fitting member (2, 1
)'s protruding part (24a) on the inner side of the rotating drum (2). When this first operation ends] 7, the rotating drum is rotated by a predetermined angle, in this embodiment, the angle is 11,
Due to the rotation in the direction 1, the opening (2b) of the rotating drum (2) located at the door (3) of the drum door (3) is opened. Insert the fitting part (protrusion (24a) of 1 or
The state is such that the sum of 1χ is 11. Due to this fitting, the rotating drum (2) becomes unable to rotate.

When the lock bin (12) retreats -1 and moves in the direction of the limit position, the door stopper (7) returns to the normal +lt state position by the force of the spring (22) and engages. Section H (24) also returns to its normal state. This lock pin is driven by (r
C is controlled by i. This door locking means (11
) is mainly gauging (1)
Alternatively, in the case of a drum-type washing machine, the temperature is removed through a gasket (9) in the first tank.

Next, the flow chart 1 in FIGS. 7 and 8 and the operation diagrams in FIGS. I'll explain it to you one by one.

Flowchart 1 in FIG. 7 shows the automatic opening operation of the drum door (3), and FIG. 9 A1, FIG. 9 B, FIG. 9 C, and FIG. 1 shows a partial schematic diagram of a drum washer and dryer showing the stages; FIG.

First, the rotary drum drive motor (8) rotates the rotary drum (2) counterclockwise at low speed, and the drum position detector (10) detects when the rotary drum is in the door opening/closing position. Stop rotation (Sl). That is, the control circuit (9) avoids driving the motor (8) until the rotating drum (2) reaches the door opening/closing position, and stops the motor (8) when the door opening/closing position 17 is reached. FIG. 9A shows a state in which the rotating drum (2) is stopped at the door opening/closing position.

Next, the control circuit (9) starts the first operation of the door locking means (11) and rotates the lock bin (12) from I- to M (2).
) direction and move it to the lower limit position (Y) (S2
).

FIG. 9B shows a state in which the lock pin (12) has been lowered to the intermediate position (Y), which is a position on the way down. At this time, the door stopper (7) is pushed down (2) by the recess (7b) at its tail end or the tip of the lock pin (12), and the claw (7a) is lifted northward. At this time, the drive 1 and the door (3) are brought into a state of release from engagement with respect to the rotating drum (2), and become capable of sliding movement 11.

Here, the lock pin (12) is further continuously moved to the lower limit position Z.
(S2).

FIG. 9 shows the state in which the cell lock bin (12) has been lowered to the lower limit position Z. At this time, the tail end (7b) of the Dii stopper presses down the fitting portion abutment (24a) in the F direction and causes its protrusion (24a) to protrude in the 1ζ direction.

Next, the drive motor (8) rotates the rotary motor (2) counterclockwise at a low speed by a predetermined angle based on the signal from the control circuit (9). Perform the opening action. The drive of the drive motor (8) is stopped when the drive motor (8) has rotated by a predetermined angle (S3). The rotation of the rotating drum (2) at a predetermined angle is determined by the drum position detector (10) when the rotating drum is moved from a predetermined position in the rotational direction (either the drum opening (2b) or the drum door (3)) and is completely opened. This is done by detecting the door opening completion position (where the door is opened) and stopping the drive of the control circuit (9) or motor (8) based on this detection signal.

The ninth diagram shows a state in which the rotation of the rotary drum (2) in the counterclockwise direction by a predetermined angle has been completed. As is clear from the figure, the opening (2b) provided in the peripheral wall of the rotating drum (2) moves to the left in Figure 1 from the position where it is covered by the drum door (3). 3), the lid is not covered and the opening (2b) is open.

When the rotating drum opens and rotates, the small hole (2d) provided near the opening (2b) of the rotating drum has a protrusion (
24a) is fitted. This causes the rotating drum (2) to become immovable together with the drum door (3). This series of operations completes the automatic opening operation of the rotating drum (2).

Next, the automatic closing operation of the drum door (3) will be explained based on the flowchart 1 in FIG. 8 and the closing operation diagram in FIG. 10.

When the opening operation of the drum door (3) and the operation of making the rotating drum (2) non-movable are completed, and it is time to close the drum door (3), the door locking means is first activated from the state shown in Figure 9. The lock pin (12) is driven upward by the second operation (11). Then, the Chubu Limit] switch (1
9) detects the middle position (Y) of the lock pin (12) and stops the lock pin (12) at the middle position (Y);
(S4).

Next, the control circuit (9) drives the drive motor (8) to rotate the rotary drum (2) at low speed in the training direction (
S5). At this time, the drum door (3) is moved by the door stopper (7).
) is in a lifted state and fixed to the washing machine main body by a lock pin (12). = 19 - Therefore, only the rotating drum (2) is in a rotatable state. This clockwise low-speed rotational drive is continued until the opening of the rotating drum (2) reaches a closed position. This stop 1- in the closed 11-position is caused by the control circuit (9) based on the signal from the drum position detector (10).
is performed by stopping the drive motor (8) (S5).

Figure 10A shows the rotary drum (2) rotating clockwise at low speed with the door stopper (7) unlocked and the drum door (3) fixed by the lock pin (12). The state in which it is set is shown. Therefore, the opening (2b) of the rotating drum (2) is gradually covered by the drum door (3).

Furthermore, FIG. 10B shows a state in which the rotating drum (2) has been rotated to the door opening/closing position, which is the closed position, and in this state, the opening (2b) of the rotating drum is completely closed to the drum (3).
) is covered by

Next, the door locking means (1) is activated by a signal from the control circuit (9).
The third operation of 1) is performed, and the lock pin (12) is moved up h' to the -1-eye position (X) and then stopped (S6).

In Figure 10C, the lock pin (12) is at the 4-limit position (X).
It shows the state in which the door has been moved up to yi, and the door stopper (
7) has returned to its normal position, and the claw portion (7a) is engaged with the engaging portion of the rotating drum. This allows the drum door (3)
is in a locked state with respect to the rotating drum (2), and the rotating drum (2) is in a state where it can start a washing or drying process by rotational driving.

According to this embodiment, it is possible to automatically open and close the drum door of the rotating drum in a drum-type washer/dryer. When you open the outer lid of the main unit, you can immediately load and unload laundry without opening the rotating drum door.

Furthermore, when the drum door (3) is open, the protrusion (24a) of the fitting member is inserted into the small hole (2d) of the rotating drum.
By fitting the rotating drum (2) into a non-movable state, the rotating drum (2) can be prevented from moving in the weight direction due to unevenness of the laundry while loading and unloading the laundry. Definitely prevent this! I can do L.

In addition, by closing the outer lid of the main unit after loading or unloading the laundry, the door of the rotating drum can be automatically closed, which eliminates the need for the operator to close the door of the rotating drum. There is no need to perform opening/closing operations.

In addition, although this embodiment shows an example in which the rotating drum according to the present invention is applied to a drum-type washing/drying machine, the rotating drum according to the present invention is not limited to these, and the rotating drum according to the present invention has an opening in the peripheral wall. It is possible to apply this device to a variety of devices as long as the device uses a rotating drum which has a 1-section opening and a mechanism for opening and closing this opening with a sliding door.

[Effects of the Invention] As described below, the automatic door opening/closing device for the rotating drum according to the present invention can automatically open and close the drum door for opening and closing the opening of the rotating drum, and the The rotating drum can be fixed automatically, ■'e: The author has removed the troublesome door opening/closing operations and the drum opening ``one part position adjustment''.
! L'('j) is released, improving work efficiency.Also, since the door opening 11-operation is performed automatically, if the door is forgotten to close or if the door is closed insufficiently, the contents may leak out while the rotating drum is rotating. Due to the contents flying around or flying around -C
It can effectively increase the voltage by 1vJ to damage the equipment. Furthermore, since it is not necessary to open and close the drum by touching it directly when the drum surface is hot, the safety of the operator is improved.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram showing the overall structure of an embodiment of the present invention, and FIG. 2 is a diagram showing the installation of a drum door to a rotating drum according to the present invention
FIG. 3 is a perspective view of the drum door according to the embodiment; FIG. 4A is an explanatory diagram showing the state in which the fitting part hole provided on the inner surface of the drum door is installed; FIG. 4/Bl is an explanatory diagram showing the small hole formed near the opening part of the rotating drum, and FIGS. 5 and 6 are the main parts 47 of the door locking means. Fig. 7 is a schematic diagram showing the drum door opening operation, and Fig. 8 is a schematic diagram showing the drum door opening operation.
7 o-f Ya-1-diagram, Figure 9 rA), (B),
rc+ and tD are partial schematic diagrams showing each stage of the drum door opening operation, and Figures 10/A), (B) and (C) are partial schematic diagrams showing each stage of the drum door closing operation. , 1st
FIG. 1 is a schematic perspective view of a drum-type washing machine for explaining the J+1) configuration of a conventional rotating drum. (2) is a rotating drum, (2d) is a small hole, (3) is a drum door, (3b) is a drum lock opening, (7) is a door stopper, (9) is a control circuit, (10) is a drum position detection vessel(
11) is the door lock means, (12) is the lock pin, (23)
) is the stopper storage part, and (24) is the Sakiaiberi. In each figure, the same reference numeral 7'3 indicates the same element. Agent Patent Attorney Masuo Oiwa (and 2 others) Figure 1 2b Upper hall and δ Figure 2 7b] Concave (A) CB) Figure 4 Figure 3 X... 12: Mouth, 7 Kupiso Figure 5 2d: Small Zo (12: Mouth -・Rin L°n 17: Wire Figure 6 Figure 11 Procedural amendment (voluntary) 1. Indication of the case Patent application 1986-057461 No. 2
Name of the invention Automatic door opening/closing device (=j Rotating drum 3, Representative of the person making the amendment: Moriya Shiki 5, Detailed explanation column and drawings of the invention in the specification subject to the amendment. 6. Contents of the amendment 120, Ri L-07 Figure 5

Claims (1)

[Claims] (1) A rotating drum that performs a predetermined rotational movement within a casing, a drum door that is slidably attached to the outer periphery of the rotating drum to open and close a drum opening provided on the peripheral wall of the rotating drum, and the drum door. It is a seesaw-shaped stopper with a locking pawl at the tip, and when the tail end is at the upper limit position, the drum door is locked to the rotating drum, and when it is at the middle and lower limit positions, the drum door is locked. A door stopper that releases the door and simultaneously makes it immovable with respect to the casing; a drum position detection means that detects a predetermined position in the rotational direction of the rotating drum; and a door stopper that allows the door to open and close with respect to the rotating drum. A control circuit that controls the drum drive unit to provide rotational movement to the door opening/closing position and opening/closing movement at a predetermined angle in the forward or reverse direction from the door opening/closing position, and a control circuit that moves the rotating drum to the early door opening/closing position. Then, before the opening rotation operation of the predetermined angle, a first operation is performed to push down the tail end of the door stopper from the upper limit position to the lower limit position, and before the closing rotation operation of the predetermined angle, the tail end of the door stopper is pushed down. a door locking means that performs a second operation of returning the door stopper to the middle position and a third operation of returning the tail end of the door stopper to the upper limit position at the end of the closing rotation operation; a fitting member that is pressed down at the same time as one operation and causes a protrusion to protrude inward of the rotating drum; and a fitting member that fits into the protrusion of the fitting member at the end of the opening rotation operation of the rotating drum and makes the rotating drum immovable relative to the casing. A rotary drum with an automatic door opening/closing device, comprising: a hole provided near an opening of the rotary drum for adjusting the state of the rotary drum.