JP2640025B2 - Door device of drum type washing machine - Google Patents

Description

The present invention relates to a drum-type washing machine.

(B) Conventional technology As a conventional example, in a door device for opening and closing an opening for putting in clothes, an annular frame pivotally supported by a pivot portion and an opening edge of the opening come into contact with an opening edge of the opening. A sealing member that seals between the device and a see-through window fixed to the inner peripheral surface of the annular frame via the sealing member; and an inner peripheral portion of the annular frame on the outer peripheral surface of the sealing member. Japanese Patent Application Laid-Open No. 58-169873 (D06F37 / 28) discloses a structure provided with a first annular groove for fitting the first annular groove and a second annular groove for fitting the peripheral portion of the see-through window.
Is shown in

(C) Problems to be Solved by the Invention In the conventional example, the sealing member has a role of a connection medium for connecting the see-through window to the annular frame and a role of contacting the opening edge to seal this portion. However, while the former requires a certain degree of hardness as the connection medium, the latter requires a certain degree of softness in order to sufficiently exert the sealing function, and it is difficult to adjust this point. There was a problem.

The present invention relates to an improvement in a door device of a drum type washing machine,
Such a problem is solved.

(D) Means for Solving the Problems The present invention provides a main body, a drum outer tub provided in the main body, a rotating drum rotatably arranged in the drum outer tub, and a front surface of the outer tub. And a door device for opening and closing the opening portion, the door device being openable and closable, the door device being an annular frame pivotally supported by a pivot portion, and a see-through for seeing through the inside of the drum. A window, and a sealing member made of an annular hard rubber which abuts on an annular projection formed at an edge of the opening to seal between the opening and the door device; and an outer periphery of the sealing member. The first annular groove for fitting the inner peripheral portion of the annular frame and the second annular groove for fitting the peripheral edge of the see-through window are formed on the inner peripheral surface of the sealing member. While connecting the annular frame and the see-through window, on the outer tank side of the seal member In a drum type washing machine having a third annular groove for forming a flexible wall surface which comes into contact with the annular projection when the door device is closed, one of the opposed wall surfaces constituting the third annular groove is provided. A protruding body protrudes from the tip of the wall toward the other wall.

The projecting body extends along an open end of the third annular groove,
It is provided continuously or intermittently.

Further, a recess is formed in a wall surface of the third annular groove on the outer tank side.

In addition, a plurality of annular recesses are formed in contact portions of the seal member with the see-through window.

Further, in a door device that opens and closes an opening for clothing input with a pivot portion as a fulcrum, a seal member that contacts an edge of the opening and seals between the opening and the door device is provided,
An adjusting means for changing the height of the pivot portion is provided.

(E) Operation That is, when the door device is closed, the seal member comes into contact with the opening. At this time, the projecting body comes into contact with the other open end, and the portion of the third annular groove is located inside the seal member. To form a space. Further, a recess is formed in a wall surface on the opening side in the space.

By forming this space and forming the recess, the side wall surface of the opening of the space becomes easy to bend with elasticity, and the adhesion with the opening can be improved without making the seal member itself soft. improves.

In addition, by forming a plurality of annular recesses at the contact points of the sealing member with the see-through window, a plurality of sealing places are present here, and the seal portion is brought closer to line contact, so that the sealing pressure is reduced. Enhance.

Also, by changing the height of the pivot of the door device,
The degree of adhesion to the opening is changed without changing the material of the seal member.

(F) Example An example of the present invention will be described with reference to the drawings.

1 to 3, reference numeral 1 denotes a frame made of sheet metal;
2 is an outer tank formed of a synthetic resin in the shape of a horizontal axis drum, 3
... are vibration damping devices for elastically supporting the outer tub 2 from the corners of the frame 1; 4 is a washing drum rotatably supported in the outer tub 2; 1, clothing inlets 8 coaxially opened at the center of the front of each of the outer tub 2 and the drum 4, and a door device 8 for opening and closing the inlets 5, 6, 7; And a glass plate 10 for seeing through the drum 4, and connecting the frame 9 and the glass plate 10 and abutting against an annular convex portion 11 formed at the edge of the charging port 6. And an annular sealing member 12 made of hard rubber for sealing the portion. Reference numeral 13 denotes a pivotal support portion provided on the outer tub 2 for pivotally supporting the frame 9 to the side of the inlet 6. Reference numeral 14 denotes a handle of the door device.

As shown in FIGS. 3 and 4, the seal member 12 has first and third annular grooves 15 and 16 which open in the outer peripheral direction, and is sandwiched between the two annular grooves 15 and 16 and opens in the inner peripheral direction. The second annular groove 17 is formed integrally. Then, the inner peripheral portion 18 of the frame 9 is fitted into the first annular groove 15, and the second annular groove
The door device 8 is configured by fitting the peripheral portion 19 of the glass plate 10 into 17.

20 is a wall surface of the third annular groove 16 on the side of the inlet 6
An annular projection formed at the open end of the projection 21 toward the opposing wall surface 22, an annular recess A formed at the wall surface 21,
Numerals 24 are annular recesses B formed in a large number of places on the seal member 12 in contact with the glass plate 10.

As shown in FIG. 4, the annular projection 20 and the opposing wall surface 22 are set in advance so that a gap Z is formed at the time of molding the seal member 12 such that the gap Z can be removed.

Thus, in the state where the door device 8 is closed, the wall surface 21 is pressed by coming into contact with the projection 11 of the insertion port 6, and the annular projection 20 comes into contact with the opposing wall surface 22.
Inside the seal member 12, a space 25 utilizing the third annular groove 16 is formed.

The wall surface 21 is formed with the annular recesses A23 in addition to the space portion 25,
It becomes very easy to bend and is deformed along the convex portion 11 of the inlet 6, so that the area of contact with the convex portion 11 is increased. Therefore,
The sealing effect at this portion is extremely good.

Further, in the portion where the annular recesses B24 are provided,
The opening ends of the many recesses B24 are in linear contact with the glass plate 10, and the sealing pressure is concentrated on each contact portion to enhance the sealing effect, and a large number of sealing portions are present.
If the recesses B24 are not provided, the contact with the glass plate 10 becomes a surface contact, not only the sealing pressure is dispersed, but also a capillary phenomenon may be caused to allow water to enter.

Next, a second embodiment will be described with reference to FIG. 5 and FIG. However, the feature of the second embodiment is that the pivot 13
Therefore, only this characteristic portion will be described here.

Reference numerals 26 and 26 denote a pair of support bases for pivotally supporting both ends of the pivot shaft 27 of the door device 8, and reference numeral 28 denotes a support hole opened on the side surface of the support base 26. Penetrated,
Further, the pivot shaft 27 is formed to be vertically long so as to be able to move in the vertical direction (actually, since the pivot portion 13 is provided on the front side of the device, the front and rear direction). 29 is this support 26
Inside, a holding body for holding both ends of the pivot shaft 27, an inclined surface A30 is provided on the upper surface. Reference numeral 31 denotes a spring for urging the holding body 29 to move upward, and 32 abuts on the upper surface of the holding body 29 against the urging of the spring 31,
The upper surface of the holding member 29 is in contact with the upper surface of the support base 26, and the lower surface of the holding member 29 is
An inclined surface B33 corresponding to the 29 inclined surfaces A30 is provided.
Reference numeral 34 denotes a bolt screwed to the side surface of the support base 26, and the bolt is provided at a position such that its tip comes into contact with the side of the contact body 32. Reference numeral 35 denotes a lock nut for the bolt 34.

That is, by increasing the screwing degree of the bolt 34, the contact body 32 is pushed and moves laterally. Then, since the contact portion between the contact body 32 and the holding body 29 is inclined, the holding body 29 moves downward according to the movement of the contact body 32, and is held by the holding body 29. The pivot shaft 27 is also moved downward. Thus, the pivotal position of the door device 8 is changed in the vertical direction.

When the degree of screwing of the bolt 34 is loosened, the force of the holding body 29 moving upward by the urging of the spring 31 is applied to the contact body 32.
The contact member 32 retreats to its original position in accordance with the inclination of the contact portion between the two, and the holding member 29 can move upward.

From the above, when it is desired to increase the contact force between the seal member 12 and the insertion port 6, the door device 8 is moved in the direction of the insertion port 6 by moving the position of the pivot shaft 27 downward. Get closer.

The displacement of the pivotal position of the door device 8 can be increased by increasing the inclination angles of the inclined surfaces A30 and B33. Therefore, the pressure applied to the bolt 34 also increases. Therefore, the bolt 34 corresponding to the desired displacement amount
It is necessary to adopt.

(G) Effects of the Invention In the door device according to claims 1 to 3 of the present invention, the sealing effect with the opening can be enhanced without changing the material of the sealing member. In the configuration of the door device according to the fourth aspect, since the sealing pressure between the door device and the opening can be changed, there is more room for selection of the material and shape of the sealing member, and the degree of freedom in design is improved. Can be done.

Further, in the configuration of the door device according to claim 3 of the present invention, the sealing effect of the door device itself can be improved.

[Brief description of the drawings]

1 is a perspective view of a drum type washing machine of the present invention, FIG. 2 is a side sectional view of the same, FIG. 3 is a sectional view of a principal part of a seal portion of the door device, and FIG. FIG. 5 is a sectional plan view of the door device in the second embodiment, and FIG.
The figure is a side sectional view of the pivot portion. 6 ... clothing input port (opening), 8 ... door device, 9 ...
Frame (annular frame), 10: glass plate (transparent window), 12: sealing member, 13: pivot portion, 15: first annular groove, 16: third annular groove, 17: second Annular groove, 20 ... Annular projection (projection), 23 ... Annular recess A, 24 ... Annular recess B, 26 ... Pivot, 29 ... Holder, 31 ... Spring, 32 ... … Abutment, 34…
... bolts (26, 29, 31, 32, 34: adjusting means).

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mibun Enami 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hideaki Matsunaga 2--18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Tetsuo Sakane 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Tadashiri 2--18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Inside Electric Co., Ltd. (72) Inventor Masafumi Nishino 2-18, Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References Japanese Utility Model Sho-58-26475 (JP, U) Japanese Utility Model Hei 2-15098 (JP, U) Actually open 1988-202289 (JP, U) Actually open 1987-151890 (JP, U) Actually open 48-107579 (JP, U) Actually open 49-2169 (JP, U) Actually open Kaisho 56-169873 (JP, U)

Claims (4)

(57) [Claims] 1. A main body, a drum outer tub provided in the main body, a rotary drum rotatably disposed in the drum outer tub, and a clothing input opening provided in a front face of the outer tub. And a door device that covers the opening so as to be openable and closable. The door device includes an annular frame pivotally supported by a pivot, a see-through window for seeing through the inside of the drum, and a rim of the opening. A sealing member made of an annular hard rubber which abuts on the annular convex portion formed on the outer peripheral surface of the annular frame to seal between the opening and the door device. A first annular groove for fitting the portion and a second annular groove for fitting the peripheral portion of the see-through window are formed on the inner peripheral surface of the seal member, and the seal member connects the annular frame and the see-through window. In a state where the door device is closed on the outer tank side of the seal member, In a drum type washing machine having a third annular groove for forming a flexible wall surface which abuts on the annular protrusion, in the drum-type washing machine, one end wall of the opposing wall surface constituting the third annular groove extends from the front end to the other wall surface. A drum-type washing machine characterized in that a protruding body is protruded toward the machine. 2. The drum type washing machine according to claim 1, wherein a recess is formed in a wall surface of the third annular groove on the outer tub side. 3. The drum-type washing machine according to claim 1, wherein a plurality of annular recesses are formed at contact portions of the seal member with the see-through window. 4. A door device for opening and closing an opening for putting clothes around a pivot portion as a fulcrum, wherein the door device contacts an edge of the opening,
A drum type washing machine comprising: a sealing member for sealing between the opening and the door device; and adjusting means for changing a height of the pivot portion.