JP2015077348A - Drum type washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely perform detection of door closure while correcting positional deviation of a latch.SOLUTION: A drum type washing machine includes: an input port 1g where laundry is put in/taken out; a hinge 2c provided at one end opening edge part of the input port 1g; a latch receiving part 260 provided at the other end opening edge part of the input port 1g which is on the other side from the side on which the hinge 2c is provided with the input port 1g being sandwiched in-between; a door 2 for closing the input port 1g in an openable/closable manner via the hinge 2c; a latch 21 provided at the door 2 and locked to the latch receiving part 260; a door lock detection part 265 provided at the latch receiving part 260 and detecting that the latch 21 is locked; and positioning means provided in a position different from the latch receiving part 260 and correcting positional deviation of the latch 21 with respect to the latch receiving part 260.

Description

  The present invention relates to a drum type washing machine.

  In general, a drum-type washing machine includes a drum that can store laundry by rotating around a rotating shaft that is inclined so that the horizontal or opening side is high, and an outer tub in which the drum is disposed. I have.

  This type of drum-type washing machine repeats the washing process in which the laundry in the drum is lifted and dropped toward the water surface by rotating the drum containing the laundry in the outer tub storing a predetermined amount of water. Do the laundry. Moreover, in a drum type washing machine with a drying function, drying is performed by blowing warm air on the laundry in the drum.

  On the front side of the drum, an insertion port for taking in and out laundry is provided, and an opening-and-closing door is provided at the insertion port. The door is, for example, locked by a locking means provided in the washing machine body while being closed to the washing machine body during operation, and an open button or the like provided in the washing machine body is provided. It can be opened by operating.

Moreover, what provided the handle for opening operation of a door in the outer peripheral part of the door is also known (for example, refer patent document 1). In patent document 1, the latch provided in the door is latched by the latch receiving part provided in the opening edge of the insertion opening, and it is comprised so that a door may close an insertion opening.
A door lock detection unit is provided inside the latch receiving unit. The door lock detector is pressed by the latch when the latch is locked, and detects that the door is closed by the press.
An inclined guide portion is provided at the opening edge of the latch receiving portion. The guide portion serves to guide the abutting latch into the latch receiving portion when the latch is displaced due to a door displacement or the like. Even when the guide is misaligned, the latch can be locked to the latch receiving portion while correcting the misalignment.

Japanese Patent No. 4519054

  The latch receiving portion of the washing machine described in Patent Document 1 has two functions, that is, a function of correcting the positional deviation of the latch and a function of detecting a door lock. As a result, it is possible to detect that the door is closed while correcting the misalignment of the latch, but it has been improved to fully satisfy the requirements for further detection of door closing. Was desired.

  This invention is made | formed in view of such a situation, and makes it a subject to provide the drum type washing machine which can detect the door closing reliably, correct | amending the position shift of a latch.

  The present invention provides an input port for taking in and out laundry, a hinge provided at one end opening edge of the input port, and the other end of the input port opposite to the side where the hinge is provided across the input port. A latch receiving portion provided at an opening edge portion; a door that closes the opening through the hinge; and a latch provided on the door and locked to the latch receiving portion; and the latch receiving portion. A door lock detection unit that detects that the latch is locked, and a positioning unit that is provided at a position different from the latch receiving unit and corrects a positional deviation of the latch with respect to the latch receiving unit; It is characterized by comprising.

  ADVANTAGE OF THE INVENTION According to this invention, the drum type washing machine which can detect a door closing reliably while correcting the position shift of a latch is obtained.

It is a figure which shows the drum type washing-drying machine which concerns on one Embodiment of this invention, (a) is a front view, (b) is a right view. It is a left view which shows an internal structure typically. It is a right view which shows an internal structure typically. It is a top view which shows an internal structure typically. It is a partial front view of the upper left side which shows an internal structure typically. (A) is a front view of a door, (b) is a rear view of a door. The rear view of the door with the fixed cover removed, (b) is a rear view showing the lock mechanism. (A) is a figure which shows the contact state of the latch and latch receiving part at the time of non-opening operation (at the time of door closing), (b) is a figure which shows the separation state of the latch and latch receiving part at the time of opening operation. . (A) is a cross-sectional view of the door when the door is closed, and (b) is an end view showing a state of latch latching. It is an expansion perspective view of a latch receiving part. (A) is a left side view of the door, (b) is a rear view around the convex portion, and (c) is an enlarged sectional view showing a fixing structure of the convex portion along the line DD in FIG. 11 (b). It is the perspective view of the drum type washing-drying machine seen from the front diagonal lower right which shows the positional relationship of the convex part and recessed part which comprise a positioning means. In FIG. 12, it is an enlarged view of the part enclosed with the dashed-dotted circle, (a) is a figure which shows a convex part, (b) is a figure which shows a recessed part. It is a longitudinal cross-sectional view of the surroundings of a door on the basis of the engagement position of a convex part and a recessed part. FIG. 15 is an enlarged cross-sectional view of a portion surrounded by a dot-dash line circle in FIG. 14.

  Hereinafter, a drum type washing machine according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. The main feature of the drum type washing machine according to the present embodiment is that the drum type washing machine includes a positioning unit that corrects the positional deviation of the latch with respect to the latch receiving portion. Below, after demonstrating the whole structure of a drum type washing machine first, the positioning means is demonstrated in detail. In the present embodiment, a drum type washing machine is described as an example of the drum type washing machine. The front / rear / left / right / up / down directions in the following description are based on the front / rear / left / right / up / down directions shown in FIG.

  As shown in FIG. 1 (a), the drum type washing and drying machine has a casing 1 whose outer shell is configured by combining a steel plate and a resin molded product, and the casing 1 is mounted on a base 1h. Configured. The housing 1 includes left and right side plates 1a and 1b, a front cover 1c, a back cover 1d (see FIG. 1B), a top cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are joined by a U-shaped upper reinforcing member R2 (see FIGS. 2 and 4), a front reinforcing member R1 (see FIGS. 2 and 4), and a rear reinforcing member (not shown). The box-shaped housing 1 including the base 1h is formed and has sufficient strength.

In the approximate center of the front cover 1c, there is provided an insertion port 1g for taking in and out clothes or the like to be washed or dried. The insertion port 1g is closed by a door (lid body) 2, and the door 2 is supported by a hinge 2c (see FIGS. 2 and 9) provided on the front reinforcing member R1 so as to be opened and closed. Details of the configuration of the door 2 and the configuration around the input port 1g will be described later.
An operation panel 12 including a power switch 12a, operation switches 12b and 12c, a display 12d, and the like is provided on the upper front surface of the housing 1. The operation panel 12 is electrically connected to a control device 13 (see FIGS. 2 and 3) provided at the lower part of the housing 1.

  On the left side of the operation panel 12, there is provided a drawer-type tray 14 for charging detergent, bleach, softener and the like. Further, on the right side of the operation panel 12, a pull-out drying filter 15 is provided.

  The dry filter 15 includes a mesh filter 15a (see FIG. 4), and removes lint, cotton dust, and the like. Cleaning of the dry filter 15 is performed by pulling out the dry filter 15 and taking out the mesh-type filter 15a.

  Further, the upper surface cover 1e is provided with a connection port (not shown) to which a water supply hose from the water tap is connected and a hose connection port (not shown) for supplying the remaining hot water of the bath.

  As shown in FIG. 2, the drum type washing and drying machine has a drum 3 (also called a rotating drum, an inner tub, or the like) 3 that can rotate around a rotation shaft in a housing 1. Clothes etc. are accommodated in the drum 3.

  The drum 3 is made of a metal such as stainless steel, and has a substantially bottomed cylindrical shape. As shown by a broken line in FIG. 2, the drum 3 is arranged with the opening end 39 side facing the front of the drum-type washing and drying machine so that the opening end 39 faces the door 2.

The peripheral wall 31 of the drum 3 is formed with a plurality of through holes (not shown) for water flow and air flow.
As shown in FIG. 3, a substantially annular fluid balancer (also called a balancer ring) 35 is provided integrally with the drum 3 at the edge of the opening end 39 of the drum 3. The fluid balancer 35 is configured by enclosing a fluid having a large specific gravity therein, and cancels the eccentricity due to the movement of the fluid in the fluid balancer 35 when the eccentricity occurs due to the unevenness of the laundry when the drum 3 rotates. And maintain the balance of rotation. The inside of the drum 3 can be accessed through an opening 36 (see FIG. 2) that is largely open radially inward of the annular fluid balancer 35, from which clothes and the like can be taken in and out. it can.

  As shown in FIG. 3, a plurality of lifters 37 are provided on the inner side of the peripheral wall 31 of the drum 3 so as to project linearly in the depth direction (axial direction). By providing the lifter 37, it is possible to efficiently and repeatedly perform the operation of lifting clothes and the like together with the centrifugal force obtained by the rotation of the drum 3 at the time of washing and drying, and dropping it with gravity. The rotation center 38 of the drum 3 is inclined so that the opening 36 (see FIG. 2) side is high, but it may be horizontal.

  In addition, the drum type washing and drying machine includes an outer tub 4 in which the drum 3 is disposed, coaxially with the drum 3. The outer tub 4 is formed of a synthetic resin and is formed in a substantially bottomed cylindrical shape. The outer tub 4 is arranged toward the front of the drum type washing and drying machine so that the open end faces the door 2.

A substantially annular tank cover 5 is attached to the edge of the open end of the outer tank 4. The open end of the tank cover 5 faces the door 2.
The tank cover 5 is formed of the same or different synthetic resin as the outer tank 4. As the synthetic resin forming the outer tub 4 and the tub cover 5, polypropylene resin, polybutylene terephthalate resin, polyphenylene sulfide resin, syndiotactic polystyrene resin can be used, and preferably a synthetic resin with a reinforcing material added thereto. Can be used. Of these, it is desirable to use polypropylene resin from the viewpoint of cost and the like. As the reinforcing material, a filler component, that is, an inorganic filler such as glass filler or talc can be used. Since the strength can be increased by adding a reinforcing material, it is suitable for the outer tub 4 that requires strength.

  As shown in FIG. 2, the opening of the tank cover 5 and the opening provided in the front reinforcing member R <b> 1 are connected by a rubber bellows 2 e, and the bellows 2 e closes the outer tank 4 by closing the door 2. It plays the role of maintaining watertightness with the door 2. This prevents water leakage during washing, rinsing and dehydration.

  As shown in FIG. 2, a motor M <b> 1 for driving the drum 3 is attached to the center on the back side of the bottom wall of the outer tub 4. A rotation shaft (not shown) of the motor M1 passes through the outer tub 4 and is coupled to the drum 3.

  As shown in FIGS. 2 and 3, the outer tub 4 is supported in an anti-vibration manner by a plurality of suspensions 40 whose lower side is fixed to the base 1 h. The suspension 40 includes a coil spring 40a and a damper 40b.

  On the other hand, the upper side of the outer tub 4 is supported by an auxiliary spring 45 (see FIGS. 4 and 5) attached to the upper reinforcing member R2. The auxiliary spring 45 prevents the outer tub 4 from falling in the front-rear direction.

  As shown in FIG. 2, a water supply port (supply port) 46 for supplying a liquid containing water, a detergent, a bleaching agent and the like into the outer tub 4 is provided on the upper left side of the rear side of the outer tub 4. Yes. The water supply port 46 communicates with a groove (not shown) that curves gently downward from here. A cover member is screwed or welded to the groove so as to close the groove except for the lower end portion of the groove. Therefore, only the lower end portion of the groove communicates with the inside of the outer tub 4.

  As shown in FIG. 5, the detergent container 17 has an upper opening 17a and a front opening 17b, and a drawer-type tray 14 (see FIG. 1A) is attached to the front opening 17b. When the detergent is to be put in, the tray 14 is pulled out. The detergent container 17 is fixed to the upper reinforcing member R2 of the housing 1. The detergent container 17 has a bottom surface that is obliquely cut to prevent interference with the outer tub 4, and is shallow on the right side and deep on the left side when viewed from the front. Further, a water outlet 17 c is provided on the left side of the detergent container 17 and slightly behind it. Therefore, the bottom surface of the detergent container 17 is formed in a mortar shape so that the position of the water outlet 17c is the lowest. The water outlet 17c and the water supply port 46 of the detergent container 17 are connected by a rubber bellows tube 17d.

  Therefore, the liquid supplied from the detergent container 17 enters the water supply port 46 from the water outlet 17c through the bellows tube 17d. The liquid that has entered the water supply port 46 is supplied into the outer tub 4 through the aforementioned groove. With such a configuration, in order to recover the water sealing of the drain trap after the drying operation, it is possible to prevent wet clothes and the like from getting wet when supplying makeup water to the drain pipe through the outer tub 4. Can do.

As shown in FIGS. 2 and 3, a drain port 47 is provided at the bottom of the bottom of the outer tub 4, and a drain hose D <b> 1 is connected via a drain joint. In addition, the front-end | tip part of the drainage hose D1 is connected to the drainage hole G1 provided in the floor G as shown in FIG. A drainage valve D2 is provided in the middle of the drainage hose D1, and water is stored in the outer tub 4 by closing the drainage valve D2 and supplying water, and opening the drainage valve D2 in the outer tub 4 Water is discharged outside the aircraft.
As shown in FIG. 3, a blower duct 61 is provided inside the back surface of the housing 1, and an overflow connected to a lower portion of the blower duct 61 so as to join the drainage hose D <b> 1 downstream of the drainage valve D <b> 2. Hose D3 for use is connected. The upstream end of the overflow hose D3 is connected so as to be positioned above the bellows tube 49c.

  Further, as shown in FIG. 2, an air trap 48 is provided at the lowermost portion of the rear end face of the outer tub 4, and is connected to a water level sensor 56 (see FIG. 2) by a tube T. The water level in 4 is detected. The air trap 48 is connected through the outer tub 4 by an air trap joint seal and an air trap joint.

  On the rear side of the detergent container 17 (see FIG. 2), as shown in FIG. 4, components related to water supply such as a water supply electromagnetic valve 52, a bath water supply pump 53, and a water level sensor 56 are provided. The upper opening 17a (see FIG. 5) of the detergent container 17 includes a water supply unit 54 to which a water supply electromagnetic valve 52 is attached.

  As shown in FIG. 3, a blower duct 61 is connected to the drying filter 15 via a drying duct 15b. The air duct 61 is connected to an exhaust port 49 provided below the rear end face of the outer tub 4 via a rubber bellows tube 49c. A water-cooled dehumidifying mechanism (not shown) is built in the air duct 61, and cooling water is supplied to the water-cooled dehumidifying mechanism from a water supply electromagnetic valve 52 through a water supply hose 55 as shown in FIG.

  As shown in FIG. 4, a blower fan 62 is provided on the rear side of the drying filter 15. As shown in FIG. 3, the intake side of the blower fan 62 is connected to the drying filter 15, and the discharge side is connected to a hot air duct 64 in which a heater 63 is built. The hot air duct 64 is connected to the opening of the outer tub 4 via a rubber bellows pipe 65 and a hot air blowing nozzle 68 connected thereto.

  The control device 13 (see FIG. 2) includes a microcomputer and a drive circuit, and also includes operation switches 12b and 12c (see FIG. 1A), input circuits from various sensors, and the like. The microcomputer receives various information signals in the operation of the user, the washing process, and the drying process. The microcomputer is connected to the motor M1, the water supply electromagnetic valve 52, the drain valve D2, the blower fan 62, and the like (see FIGS. 2 to 4) through a drive circuit, and controls the opening, closing, rotation, and energization of these. Further, in order to inform the user of information related to the washing machine, the display 12d (see FIG. 1A), a buzzer, and the like are controlled.

Next, the structure of the opening edge part of the door 2 or the inlet 1g is demonstrated in detail.
As shown in FIGS. 6A and 6B, the door 2 has a circular shape in front view and rear view. A handle 20 is provided on the outer periphery of the door 2. Further, the frame body 200 constituting the door 2 is provided with a protruding portion 250 (see FIGS. 6B and 12) constituting the positioning means, and the positioning means is provided at the opening edge of the insertion port 1g. A recess 270 (see FIG. 12) is formed. The convex part 250 is configured to engage with the concave part 270 when the door is closed.

  As shown in FIG. 1A, the door 2 serves as a door for closing a circular insertion port 1g provided in the front cover 1c. The door 2 is provided on the housing 1 so as to be openable and closable via a hinge 2c (see FIGS. 9A and 12) provided on the left peripheral portion. As shown in FIG. 12, a ring-shaped (concentric with the door 2) cover member 1j for partitioning the inlet 1g is attached to the opening edge of the inlet 1g (front cover 1c of the housing 1). The cover member 1j can be made of a metal material such as synthetic resin or stainless steel that has been subjected to surface processing with good slipperiness.

  As shown in FIG. 6B, a lock including a latch 21 for locking the door 2 in the closed position is provided on the right peripheral portion of the door 2 (the peripheral portion opposite to the hinge mounting portion 2b to which the hinge 2c is attached). A mechanism is provided. A handle 20 is disposed on the upper side of the latch 21, and the handle 20 acts to release the lock of the latch 21 (the locked state shown in FIG. 8A and FIG. 8B). Indicating the release state).

  Specifically, the door 2 includes a ring-shaped frame 200 (see FIG. 7A, the same applies below) and a window member 210 fixed to the front surface of the frame 200 (see FIG. 6A, the same applies below). And a thin ring-shaped fixed cover 220 fixed to the rear surface of the frame body 200 (see FIG. 6B, the same applies hereinafter), and a door glass that is held between the frame body 200 and the fixed cover 220 so as not to fall off. 230.

  The frame body 200 is integrally formed of a synthetic resin, and has a substantially C-shaped cross section (not shown) having a substantially curved bulge toward the front side and an opening formed on the rear side. The frame body 200 is a member facing the cover member 1j at the opening edge of the insertion port 1g. As shown in FIG. 7A, ribs 201 extending in the circumferential direction and ribs 202 extending in the radial direction so as to intersect with the ribs 201 are formed inside the frame body 200. Yes. The ribs 202 are integrally formed with every other boss 203 in the circumferential direction. A fixing screw 221 (see FIG. 6B) for fixing the fixing cover 220 is screwed to the boss 203.

  As shown in FIG. 7A, a metal seat plate 204 for fixing the hinge 2 c is installed on the rear surface of the frame body 200. The seat plate 204 is fixed by a fixing screw 221 (see FIG. 6B) when the fixing cover 220 is attached.

  Further, abutting members 200c and 200c are provided on the upper and lower inner surfaces of the frame body 200. When the door 2 is closed, these contact members 200c and 200c contact the opposing surface of the cover member 1j of the insertion port 1g (see FIG. 1A). In addition, the elastic member which is not shown in figure is attached to the front-end | tip part of contact member 200c, 200c.

The handle 20 is integrally formed of a hard synthetic resin. As shown in FIG. 7A, the handle 22 extends from one end of the base 22 and extends from the outer peripheral edge of the door 2 as shown in FIG. Part 23.
In addition, the handle 20 is arrange | positioned in the back side rather than the largest protrusion part 1k of the front surface of the housing | casing 1, as shown in FIG.1 (b).

  As shown in FIG. 7B, the base portion 22 is provided with rotating shafts 22a and 22b projecting at both ends in the longitudinal direction, and further on the side of the rotating shaft 22b on the rotating shaft 22b. Side by side, an extension 22c is provided. As shown in FIGS. 8A and 8B, a flat contact surface 22c1 that contacts the end 21a of the latch 21 and a contact surface 22c1 are formed at the distal end of the extending portion 22c. An inclined portion 22d is provided.

  As shown in FIG. 8B, the inclined portion 22d abuts on the end portion 21a of the latch 21 when the handle 20 is opened, and gives the latch 21 rotational force in the release direction. The action when the handle 20 is opened will be described later.

As shown in FIG. 7 (b), the handle 20 supports the pivot shafts 22a and 22b at both ends in the longitudinal direction by support portions 205a and 205b provided on the inner surface of the frame body 200, respectively. It is attached to 200 so that rotation is possible. At the time of attachment, after the rotation shaft 22b is supported by the support portion 205b, the rotation shaft 22a is fitted into the C-shaped support portion 205a (not shown) (it is fitted from the radial direction of the frame body 200). Thus, the handle 20 is assembled.
The frame body 200 is provided with a spring member 208 for biasing the rotation of the handle 20 to the initial position (the closed position of the door 2). As shown in FIG. 12A, the handle 20 is positioned by the spring member 208 in a state where the base portion 22 is in contact with a regulation rib 200 a provided in the frame body 200, and in this state, the finger hook portion 23 is It extends to the outer peripheral edge portion of the frame body 200 through a notch 200e (see FIG. 6A) provided in the peripheral portion of the frame body 200. As a result, a part of the finger hanging portion 23 is in a state of overlapping the front surface of the door 2 (the edge portion of the window member 210).

As shown in FIG. 7B, the lock mechanism includes a latch 21, an urging spring 28, and a shaft 29.
The latch 21 is integrally formed of synthetic resin, and has a substantially L shape in side view as shown in FIGS. The latch 21 has a plate-like support portion 21c and a hook portion 21d provided upright from the support portion 21c. The end 21a of the support portion 21c has a tapered shape, and comes into contact with the contact surface 22c1 of the handle 20 from behind (arranged in an overlapping state).

Further, as shown in FIG. 7B, a groove 21b is formed at the opposite end of the support portion 21c, and the end portion 28a of the biasing spring 28 is locked to the groove 21b with a biasing force. It is like that.
As shown in FIGS. 8A and 8B, a shaft insertion portion 21e is formed at the connecting portion between the support portion 21c and the hook portion 21d, and the latch 21 is inserted through the shaft insertion portion 21e. It is assembled to the frame 200 so as to be rotatable about the shaft 29.
The hook formed on the hook portion 21 d is provided so that the tip portion 21 m faces the radially inner side of the frame body 200. On the opposite side of the hook portion 21d, a protruding portion 21p that protrudes outward in the radial direction of the frame body 200 is formed.

  As shown in FIG. 7B, the biasing spring 28 is a torsion coil spring, and one end portion 28 a is locked to the groove 21 b of the latch 21, and the other end portion 28 b is locked to the frame body 200. Locked to the portion 202a. As a result, the latch 21 is urged in the direction (the counterclockwise direction of the shaft 29) in which the latch 21 is latched to the latch receiving portion 260, as described later, with the shaft 29 as the center. .

The shaft 29 is inserted into the shaft insertion portion 21e of the latch 21 and the urging spring 28 through the support portions 207a, 207b, and 207c provided upright on the frame body 200, and supports these to support the frame body. 200 to hold.
A retaining piece 206 for preventing the shaft 29 from falling off is provided on the side of the support portion 207a. The retaining piece 206 has a thin plate shape and has elasticity that can be tilted in the radial direction of the frame body 200.

  As shown in FIG. 9A, a latch receiving portion 260 is provided at the opening edge of the other end of the insertion port 1g on the side opposite to the side where the hinge 2c is provided. As shown in FIG. 9B, the latch receiving portion 260 can be latched with the latch 21 when the door is closed (see FIG. 8A). As shown in FIG. 10, the latch receiving portion 260 has a rectangular opening through which the latch 21 is inserted, and inclined guide portions 262 a to 262 c that extend toward the opening are formed at the opening edge. Is formed.

  As shown in FIG. 10, a door lock detection unit 265 is provided on the inner side (rear side) of the latch receiving unit 260. As shown in FIG. 8A, the door lock detection unit 265 includes a detection unit 265a that is slid by being pushed by the tip 21m of the latch 21 (the main body portion of the door lock detection unit 265 is not shown). ). The detecting portion 265a is configured to move while being pressed in the direction of the white arrow in the figure when the tip 21m of the latch 21 is locked to the locking receiving portion 266 of the latch receiving portion 260. The door lock detection unit 265 is configured such that the distal end portion 21m of the latch 21 is locked to the locking receiving portion 266 of the latch receiving portion 260 when the detecting portion 265a is pressed and moved in the direction of the arrow in FIG. It is detected that the door 2 is closed.

When the handle 20 is opened in the closed state of the door 2, the extending portion 22 c of the handle 20 rotates and the end portion 21 a of the support portion 21 c of the locking hook 21 is pushed. Thereby, the locking hook 21 rotates in the direction in which the locking of the locking hook 21 is released (see FIG. 8B).
When the latch 21 is released, the detecting portion 265a is moved in the direction of the white arrow (release direction) in the figure by an urging member (not shown) and the detection of the door closing is released.

  The convex part 250 which comprises a positioning means is provided in the rear surface side of the frame 200, as shown to Fig.11 (a)-(c). The convex portion 250 is disposed at a position on the lower side in the circumferential direction of the seat plate 204 on the hinge 2c side (the side on which the hinge 2c is attached) from the center of the door 2 (see FIG. 12 from the center of the insertion port 1g). (See FIG. 11B). The convex portion 250 is made of a material having excellent wear resistance and strength, for example, polyacetal, and is integrally formed with the body 252 and the peripheral surface of the body 252 as shown in FIG. And a plate-like fixing portion 253 formed. The trunk portion 252 has a bottomed cylindrical shape with a tip portion serving as a bottom portion. A tapered surface 254 that gradually narrows toward the tip is formed on the outer peripheral surface of the tip. The tip side further than the taper surface 254 is formed in a substantially hemispherical shape. Further, the base end side of the distal end portion has a constant outer diameter along an axis not shown.

The fixing portion 253 is formed with a screw hole through which the fixing screw 255 is inserted. A fixing boss portion 203a protrudes from the rear surface of the frame body 200, and a fixing screw 255 inserted through the fixing portion 253 is screwed into the fixing boss portion 203a. The convex part 250 is attached. In the fixed state, the front end portion side of the body portion 252 protrudes toward the opening edge side of the insertion port 1g through the convex portion insertion hole 251 provided in the fixed cover 220 (see FIG. 13A).
The fixing portion 253 may be formed in a disk shape, or the fixing portion 253 may be fixed to the frame body 200 with three or more fixing screws 255.

On the other hand, as shown in FIG. 12, the cover member 1j at the opening edge of the insertion port 1g is provided with a recess 270 at a position facing the protrusion 250. The convex portion 250 can be engaged with the concave portion 270 when the door is closed. As shown in FIG. 13B, the recess 270 has a bottomed elongated hole shape that is slightly elongated in the left-right direction, and its opening edge 271 is chamfered in a tapered shape (see FIG. 15). ). The opening edge 271 functions as a guide surface that guides (guides) the tip of the convex portion 250 into the concave portion 270 when the door is closed. The recess 270 has an inner peripheral surface 272 that is substantially orthogonal to the surface of the cover member 1j.
In addition, the size of the elongated hole 270 is set so that the convex portion 250 is inserted into the concave portion 270 in consideration of the rotation trajectory of the tip portion of the convex portion 250 that rotates about the hinge 2c. Has been

As shown in FIG. 15, the recess 270 is inserted into a through hole 275 provided in the front reinforcing member R1, and the bottom 273 side is disposed on the rear surface side of the front reinforcing member R1. Thereby, the inner peripheral surface 272 of the concave portion 270 extends long to the rear surface side, and as a result, an engagement space (engagement space of the convex portion 250) formed inside the concave portion 270 is formed large.
Here, the protruding length of the convex portion 250 is such that the body portion 252 engages with the inner peripheral surface 272 of the concave portion 270 before the latch 21 contacts the latch receiving portion 260 when the door is closed. It is set to length.

The door 2 is positioned at the opening edge of the input port 1g in such a manner that the input port 1g is suitably sealed by engaging the convex portion 250 with the concave portion 270 as described above.
The latch 21 is configured to be inserted into the latch receiving portion 260 without contacting the lower guide portion 262c of the latch receiving portion 260 when the door 2 is closed with the door 2 positioned as described above. Yes.

As shown in FIG. 6B, the fixed cover 220 has a thin ring shape fixed to the rear surface of the frame body 200, and a concave portion 224 is formed in a portion corresponding to the handle 20.
A screw hole 222 is formed in the fixed cover 220 at a position corresponding to the boss 203 (see FIG. 7A) of the frame body 200 at a predetermined interval in the circumferential direction. Further, the fixed cover 220 has contact member holes 223 and 223 through which the contact members 200c and 200c (see FIG. 7A) are inserted, and a latch through which the latch 21 (see FIG. 7A) is inserted. A convex portion insertion hole 251 through which the hole 227 and the convex portion 250 are inserted is formed.

As shown in FIG. 9A, the door glass 230 has a substantially hat-like cross section, and the flange portion 232 formed on the peripheral portion is pressed against the frame body 200 by the fixed cover 220, so that the frame body 200. And the fixed cover 220 are held so as not to fall off.
On the upper portion of the door glass 230, an inclined surface 231 (see FIG. 6B) is formed. The inclined surface 231 serves to suitably guide the hot air blown out through the opening of the outer tub 4 into the drum 3.

Next, the operation when the door is closed will be described.
For example, when clothes are stored in the drum 3 through the insertion port 1g during washing and then the door 2 is operated to close the door 2 by placing a hand on the opened door 2, the door 2 is connected via the hinge 2c. It is rotated and approaches the opening edge (cover member 1j) of the charging port 1g so as to block the charging port 1g. Then, the convex part 250 (body part 252) of the door 2 provided on the side closer to the hinge 2c than the latch 21 is engaged so as to be inserted into the concave part 270 at the opening edge of the insertion port 1g. Thereby, in the process in which the door 2 is closed, it positions in the opening edge part of the inlet 1g in the state which seals the inlet 1g suitably.

  Here, if a positional deviation occurs in a state in which the door 2 is lowered from a predetermined position due to a downward external force acting on the opened door 2, the position of the convex portion 250 with respect to the concave portion 270. In the process in which the door 2 is closed due to the deviation, the tip end portion of the body portion 252 of the convex portion 250 comes into contact with the lower opening edge 271 of the concave portion 270. Then, the body portion 252 is guided on the opening edge 271 and is guided into the recess portion 270, and is guided to the inner peripheral surface 272. As a result, the positional deviation of the door 2 is corrected, and the positional deviation of the latch 21 with respect to the latch receiving portion 260 is corrected.

  In the state where the convex portion 250 is engaged with the concave portion 270, the outer peripheral surface of the body portion 252 of the convex portion 250 and the inner peripheral surface 272 of the concave portion 270 are in close contact with each other in the axial direction due to the shape thereof. A good contact state can be maintained without causing one-side contact or the like at the time of engagement. This contributes to improvement in durability.

  Thereafter, when the door 2 is further brought closer to the opening edge of the insertion port 1g, the latch 21 is inserted into the latch receiving portion 260. In this case, since the latch 21 is inserted into the latch receiving portion 260 with the door 2 positioned by the positioning means, the leading end portion 21m of the latch 21 is inserted into the guide portion 262c on the lower side of the latch receiving portion 260 at the time of insertion. Smooth insertion is realized without contact.

After the insertion, the distal end portion 21m of the latch 21 moves to the locking receiving portion 266 side, and the distal end portion 21m is locked to the locking receiving portion 266. Thereby, the detection part 265a of the door lock detection part 265 is pressed by the front-end | tip part 21m, and a door closing is detected by the door lock detection part 265.
Here, the distal end portion 21m of the latch 21 is smoothly moved to the latch receiving portion 266 side after being inserted into the latch receiving portion 260. This is because the tip portion 21m of the latch 21 does not come into contact with the lower guide portion 262c and the like at the time of insertion, and the tip portion 21m does not receive the resistance as in the case of contact. This is because the degree of freedom is secured. Thereby, the door closing detection unit 265 can reliably detect the door closing.

  According to the drum type washing and drying machine of the present embodiment described above, the positioning means (the convex portion 250 and the concave portion 270) for correcting the positional deviation of the latch 21 with respect to the latch receiving portion 260 is provided at a position different from the latch receiving portion 260. Since the function of correcting the positional deviation of the latch 21 and the function of detecting the door lock are provided separately, the latch receiving portion 260 closes the door while preferably correcting the positional deviation by the positioning means. Can be reliably detected.

  Since the positioning means is composed of a convex portion 250 provided on the door 2 and a concave portion 270 provided on the opening edge of the charging port 1g facing the convex portion 250, the configuration is simple, and the latch 21 It is possible to obtain a function for correcting the positional deviation at low cost. Moreover, since the convex part 250 and the concave part 270 should just be added as a structure of a positioning means, the function which correct | amends the position shift of the latch 21 is realizable, without requiring the design change of a washing machine significantly.

  Since the positioning means is provided on the hinge 2c side with respect to the center of the insertion port 1g, before the latch 21 is engaged with the latch receiving portion 260, the convex portion 250 and the concave portion 270 can be reliably engaged. In addition, the positional deviation correction of the latch 21 can be reliably performed before the latch 21 is engaged with the latch receiving portion 260.

  Since the positioning unit is provided below the hinge 2c, the positioning unit is blocked by the door glass 230 and the like, so that the convex portion 250 and the like are hardly visible to the user. Therefore, the design of the door 2 or the like is not impaired.

Although the present invention has been described in detail based on the embodiments, the contents of the present invention are not limited to the above description, and various modifications and changes can be made to the present invention without departing from the spirit of the present invention. included.
For example, in the above description, the convex portion 250 is provided on the door 2 side, and the concave portion 270 is provided on the opening edge of the charging port 1g. On the contrary, the convex portion 250 is provided on the opening edge of the charging port 1g. While providing, you may provide the convex part 250 in the door 2 side.

  Moreover, although the positioning means (the convex part 250 and the recessed part 270) was provided in one place which opposes, you may provide in several places at intervals in the circumferential direction of the door 2. As shown in FIG.

  Furthermore, although the positioning means has been shown that is provided closer to the hinge 2c than the center of the insertion port 1g, it may be provided closer to the latch 21 than the center of the insertion port 1g. Moreover, you may provide in the center of the insertion port 1g.

  The positioning means is provided below the hinge 2c, but is not limited to this, and may be provided above the hinge 2c or may be provided on both upper and lower sides of the hinge 2c.

1g slot 2 door 1j cover member (opening edge)
2c Hinge 21 Latch 250 Convex part (positioning means)
260 Latch receiving portion 265 Door lock detecting portion 270 Recessed portion (positioning means)

Claims (4)

A slot for loading and unloading laundry;
A hinge provided at one end opening edge of the inlet;
A latch receiving portion provided at an opening edge of the other end of the insertion port which is opposite to a side where the hinge is provided across the insertion port;
A door that can be opened and closed through the hinge;
A latch provided on the door and locked to the latch receiving portion;
A door lock detection unit provided in the latch receiving unit for detecting that the latch is locked;
A drum-type washing machine comprising: a positioning unit that is provided at a position different from the latch receiving unit and corrects a positional deviation of the latch with respect to the latch receiving unit.   The positioning means is provided on one of the opening edge of the charging port and the facing part of the door facing the opening edge, and on the other of the opening edge and the facing part, The drum-type washing machine according to claim 1, further comprising a concave portion with which the convex portion is engaged.   The drum type washing machine according to claim 1 or 2, wherein the positioning means is provided closer to the hinge side than the center of the charging port.   The drum type washing machine according to claim 3, wherein the positioning means is provided below the hinge.

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