JP4761983B2 - Drum washing machine - Google Patents

Description

  The present invention relates to a drum-type washing machine, and more particularly to a drum-type washing machine in which a clothing input port that is opened and closed by a door is provided on the front surface of a housing.

  In general, a drum-type washing machine has a configuration in which a drum is rotatably arranged around a horizontal axis or an inclined axis inside an outer tub arranged in a substantially box-shaped housing. The laundry is washed by rotating the drum in a state where the laundry is stored and water is stored in the outer tub. In many of these drum type washing machines, a clothing input port for putting clothes into and out of the drum is formed on the front surface of the housing, and a laterally opening type door for opening and closing the clothing input port is provided on the housing. Yes. When the door is opened, the interior of the drum is viewed through the outer tub opening formed on the front surface of the outer tub and the drum opening formed on the front end surface of the drum. You can put things in and out.

  In a conventional drum-type washing machine, the door is normally left-open. In ordinary households, these drum-type washing machines are often installed in laundry pans installed on the floor of the washroom, but when the left-open door is opened due to restrictions on the installation location, etc. In some cases, the user cannot be positioned on the opening side of the. In such a case, it is difficult to put the laundry in and out of the drum, which is inconvenient. In order to solve such a problem, a drum type washing machine is known in which a door can be selected and attached to either a left opening or a right opening.

  For example, in the drum-type washing machine described in Patent Document 1, a door with a circular shape when viewed from the front is point-symmetric with respect to the center of the clothes insertion port, and the door can be rotated 180 ° to correspond to the left opening specification and the right opening specification. I am doing so. Further, in another drum type washing machine described in the same document, an attachment member for attaching a hinge member (hinge portion) provided on the door is rotated by 180 ° so that the left opening specification and the right opening specification can be supported. However, in any case, the door is rotated 180 ° in the left-opening specification and the right-opening specification.

  It is very convenient for the user that the door left opening specification and the right opening specification can be selected in the drum type washing machine of the same model. However, since the performance and functions are not improved, it is unacceptable for the user to increase the cost significantly. Therefore, it is necessary to suppress the cost increase as much as possible on the manufacturing side. If only the door is rotated 180 ° for replacement, the structure becomes complicated and a significant increase in cost is unavoidable. On the other hand, it is easier to cope with the structure in which the door attachment member is rotated by 180 ° together with the door. However, even in such a case, various problems arise when trying to realize such a structure.

  Specifically, for example, since dimensional shifts occur in the respective members constituting the housing, the screw holes are not necessarily matched even if the door mounting member is rotated by 180 ° and screwed. If the screw holes are made large in order to absorb such a dimensional deviation, problems occur such as gaps between the members when the casing is assembled. Further, if there are places to be changed between the left-opening specification and the right-opening specification other than the mounting method of the door mounting member, the burden on the assembling worker is increased, workability is reduced, and work errors are likely to occur. Therefore, consideration must be given to workability during assembly. Furthermore, it is not preferable that there are differences in operability and usability other than the door opening direction between the left-opening specification and the right-opening specification.

JP 2004-105268 A

  The present invention has been made in order to solve the above-mentioned problems, and the object of the present invention is to install the door in any of the left and right opening specifications when the door opening direction can be changed at the manufacturing site. It is an object of the present invention to provide a drum-type washing machine that can perform the assembly work in a good manner and that does not cause a difference in operability and performance between the left and right opening specifications.

In order to solve the above-mentioned problems, the present invention comprises a box-shaped housing having a clothing insertion opening opened and closed by a door on the front surface, and an outer tub disposed inside the housing and having an opening on the front surface. A drum-type washing machine comprising: a drum that is provided to be rotatable forwardly around an inclined axis extending in the front-rear direction inside the outer tub,
The door includes a door main body, a hinge arm attaching portion for rotating the door main body about a door shaft extending in a vertical direction in the door main body, and the door main body closing the clothing input port. A locking portion for maintaining the state,
The case is attached to the right side plate member and the left side plate member covering both the left and right side surfaces and the front edge of the side plate members, and forms a frame for the clothing input port and opens and closes the door. A hinge mounting portion for mounting a hinge mechanism including the door shaft and a hinge arm, and a door latch mounting portion for mounting a door latch mechanism for holding the door closed by engaging with a locking portion of the door A frame member, and a front decorative cover attached to the front surface of the frame member so as to cover the front frame member,
In order to enable the selection of the left opening specification and the right opening specification of the door by rotating the front frame member 180 ° when attaching the front frame member to the both side plate members,
The right and left part of the front edge portions of the side plates member is straight line shape you directed obliquely upward so as to correspond to the inclination of the drum,
A lead wire guide groove having a U-shaped cross-section with a front opening is formed at both end portions of the front frame member in order to pass a plurality of lead wires in the vertical direction. In addition, a plurality of holes into which the screw member or the caulking member is inserted to attach the front frame member to the straight front edge of the both side plate members are located at different positions in the left opening specification and the right opening specification, respectively. Drilled,
Operation buttons for releasing the retention of the door closed state by the door latch mechanism mounted on said front frame member is formed by vertically disposed central position of the door in a state of being closed in the front face cover It is characterized by that.

  Here, the fixing member when the front frame member is attached to the left and right side plate members is, for example, a screwed member such as a screw or a caulking member. In this case, the fixing position of the fixing member is inserted through such a member. Holes (for example, screw holes). That is, the state where the fixing position of the fixing member is different in the left-opening specification and the right-opening specification is, for example, that the screw hole position is determined in different positions in the left-opening specification and the right-opening specification. The state that is.

  In the drum-type washing machine according to the present invention, the drum is disposed so as to be inclined forward, and accordingly, at least the front surface of the housing near the clothing input port is directed obliquely upward. In this case, the shape of the front decorative cover on the forefront of the housing may be curved or flat, but the front edge portions of the left and right side plate members are diagonally corresponding to the inclination of the drum at least on both sides of the clothing input port. It has a linear shape pointing upward. Therefore, in the front frame member that is attached to the front edge portion of the both side plate members and is attached to the front edge portion is linear, even when the front frame member is rotated 180 ° Adheres closely to the front edge.

Further, since the position of the screw holes for attaching the threadedly member or caulking member for fixing the front frame member is provided separately from each by the right opening specification and left open specifications, manufacturing of various members constituting the housing Even if the dimension is deviated to some extent from the design value, the deviation can be absorbed by changing the position of the screw hole. As a result, it is possible to reduce dimensional margins such as enlarging the screw holes so as to absorb dimensional deviations of various members and the like, so that the housing can be easily assembled and the finish can be improved.

  Also, since lead wire guide grooves are formed at both edges of the front frame member, for example, when it is decided to pass a plurality of lead wires into the right lead wire guide groove in the left specification opening In addition, even when the front frame member is rotated 180 ° and changed to the right opening specification, the inside of the lead wire guide groove exists on the right side, so that the assembly work itself for passing a plurality of lead wires does not need to be changed. Thereby, workability | operativity can be made favorable.

  In addition, since the operation button for releasing the door latch is located at the center position in the vertical direction of the door, the position of the operation button is symmetrical between the left-opening specification and the right-opening specification. The same sex and usability can be achieved.

  Further, in the drum type washing machine according to the present invention, preferably, the edge of the hinge arm on the attachment portion side of the door main body has a straight portion extending in the vertical direction, and the two hinge arms are in the straight portion. It is good to set it as the structure attached to the position which was respectively separated up and down along.

  According to this configuration, the force applied at the time of opening and closing the door can be appropriately distributed to each hinge arm as compared with the case where two hinge arms are provided close to each other. The intensity | strength of a site | part can be raised and durability can be improved. In addition, the cost of each member can be reduced, for example, by reducing the thickness of the mounting bracket that attaches the hinge arm to the door body, as the strength increases structurally.

  In addition, although the shape of the door main body edge part of a part symmetrical with the said linear part with respect to a door main body may be circular arc shape or linear shape, if it is made linear shape, a door main body will become a substantially rectangular shape by front view.

  On the other hand, if the edge of the hinge arm on the attachment part side is straight, when the door is opened, the narrow space between the front of the housing and the user may get longer. Increase. Therefore, when the door is opened, the position of the axis of the hinge mechanism is set so that a gap of a predetermined distance or more is formed between the straight portion of the door body and the front decorative cover on the front surface of the housing It is good to do. Here, the predetermined distance may be about 15 mm, for example. According to this configuration, when the door is opened, there is no possibility that the user may pinch a finger between the straight portion of the door body and the housing, and safety during use can be improved.

  Further, as one aspect of the drum-type washing machine according to the present invention, the door latch mechanism includes a door opening auxiliary operating body protruding forward in conjunction with pressing of an operation button for releasing the door latch, and a rear surface of the door body when the door is closed. It is good to set it as the structure respectively provided up and down across the location located in the side and the location where the latching | locking part of this door is engaged.

  According to this configuration, when the user presses the operation button to open the door, the upper and lower two door opening auxiliary operating bodies pop out to open the door located in front of the door, so that the user can move the door body itself. Even if there is no handle or the like for gripping, the user can easily open the door.

  Furthermore, as one aspect of the drum-type washing machine according to the present invention, the door latch mechanism includes a box body having an insertion opening into which a locking portion is inserted when the door is closed, and a box body formed inside the box body. An engagement member that engages with the locking portion, an engagement release mechanism that releases engagement by the engagement member in response to a pressing operation of the operation button, and an engagement release operation of the engagement release mechanism by electrical control A door lock portion that operates a blocking portion that blocks the door, and the door lock portion is disposed inside the box and laterally away from the insertion opening, and drains water on the upper and lower wall surfaces of the box body, respectively. It is preferable that the hole is perforated.

  In this configuration, since the insertion opening is open on the front surface of the box that houses the door lock portion, there is a risk that water may enter the inside of the box from the opening. Since the drain hole is provided, even if the box itself is turned upside down to select the left opening specification or the right opening specification, the drain hole is always present on the wall surface located below. As a result, the water that has entered the inside of the box can be discharged to the outside through the drain hole, and the drive source of the door lock unit, such as a solenoid or a torque motor, can be prevented from getting wet.

  As described above, according to the drum type washing machine according to the present invention, even when the door is left-open specification or right-open specification, the finish in appearance can be improved without impairing workability, It is possible to avoid a significant increase in cost. Further, in both the left opening specification and the right opening specification, the same operability and usability can be realized except for the door opening direction.

  Hereinafter, a drum type washing and drying machine according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a drum-type washing / drying machine according to this embodiment, and FIG. 2 is a schematic side longitudinal sectional view of the drum-type washing / drying machine according to this embodiment.

  The casing 1 forming the outer shape of the drum type washing and drying machine has a substantially box shape as a whole. As shown in FIG. 1, the front surface 1 a of the housing 1 has a shape that is slightly inclined from the upper part to the center part and faces slightly upward, and a substantially circular clothing input port 1 b is formed there. The clothes insertion port 1b is opened and closed by a door 2 that is pivotable in a lateral direction by a hinge mechanism 60. In addition, an operation panel 5 that is elongated to the left and right and on which various operation keys are arranged is provided on the upper portion of the front surface 1a, that is, on the clothes insertion opening 1b, and a drawer-type detergent container 6 is provided on the left side. Similarly, on the right side, a drawer-type dry filter container 7 is installed. Further, an operation button 8 for automatically opening the door 2 in the closed state is provided on the right side of the door 2.

  As can be seen in FIGS. 1 and 2, the upper surface 1 c of the housing 1 is a drop portion 1 d whose rear side is greatly depressed as compared with the front side. The overall height of the drum-type washing / drying machine of this embodiment is 1170 mm, which is considerably higher than that of a conventional drum-type washing machine of this type. However, a water tap and a housing protruding from the wall of the washroom by providing a drop portion 1d are provided. The washing machine can be properly installed while avoiding interference with the body 1.

  A water supply hose connection port 3 to which the other end of the water supply hose connected to the water tap is connected is disposed at a position in front of the dropping portion 1d on the upper surface 1c of the housing 1, and one end is adjacent to the right side of the bathtub. A bath water hose connection port 4 to which the other end of the bath water hose immersed in the bath water is connected is arranged. The water supply hose connection port 3 is formed by exposing a water inlet of a water supply valve 21 described later directly to the upper surface, and the bath water hose connection port 4 is formed by exposing the water inlet of the bath water pump 22 directly to the upper surface. Has been.

  Next, the internal structure will be described with reference to FIG. Inside the casing 1, an outer tub 10 having a substantially cylindrical peripheral surface is held in a freely swingable manner by a damper 11 that supports the lower left and right sides and a spring (not shown) that pulls the upper part. An outer tub opening 10a is formed on the front surface of the outer tub 10 in a circular shape relative to the garment input port 1b of the housing 1, and the peripheral portion of the outer tub opening 10a and the peripheral portion of the garment input port 1b are defined as follows. They are connected by a substantially flat cylindrical packing 12 made of an elastic body such as rubber.

  Inside the outer tub 10, a drum 13 having a substantially cylindrical shape for accommodating laundry is supported by a main shaft 14 that extends in the front-rear direction and is inclined forward. A drum opening 13a having a large opening is formed on the front end surface of the drum 13, and when the door 2 is opened, the inside of the drum 13 can be looked into from the upper front through the outer tank opening 10a and the drum opening 13a. It has become. Here, the inclination angle θ of the central axis C of the drum 13, that is, the central axis of the main shaft 14 is set to about 15 ° with respect to the horizontal line, but this is an example, and the inclination angle θ is about 10 to 30 °, for example. Is set at an appropriate angle.

  The front end of the main shaft 14 is firmly fixed to the rear surface of the drum 13 and is rotatably supported by a bearing 16 of a bearing fixing member 15 attached to the rear surface portion of the outer tub 10. A rotor 172 of a motor 17 which is an outer rotor type DC brushless motor is attached to an end portion of the main shaft 14 protruding rearward of the outer tub 10, while a stator 171 of the motor 17 is fixed to the bearing fixing member 15. ing. The rotor 172 including the permanent magnet is disposed so as to surround the outer peripheral side of the stator 171 including the windings, whereby the motor 17 has a thin structure in the extending direction of the main shaft 14. When a drive current is supplied to the stator 171 from a control circuit (not shown), the rotor 172 rotates and the drum 13 is rotationally driven through the main shaft 14 at the same rotational speed as the rotor 172.

  In the upper space in the housing 1, a water supply unit 20 including a water supply valve 21, a bath water pump 22 for supplying bath water, and a detergent charging unit 23 is disposed. The water inlet directed to the upper side of the water supply valve 21 is the water supply hose connection port 3, and the water inlet directed to the upper side of the bath water pump 22 is the bath water hose connection port 4. The detergent charging unit 23 that allows the detergent container 6 to be pulled out is disposed in front of the water supply valve 21, and the water supplied to the detergent charging unit 23 through the water supply valve 21 and the bath water pump 22 mainly passes through the interior of the detergent container 6. As described above, the water is supplied into the outer tub 10 from a water injection port 25 provided at the rear portion of the outer tub 10 through a water injection pipe 24 connected to the bottom of the detergent charging unit 23.

  As described above, the water supplied and stored in the outer tub 10 flows into the drum 13 through the water passage hole 13b. Further, water discharged from the laundry in the drum 13 during dehydration is scattered to the outer tub 10 side through the water passage hole 13b. A drain outlet 26 is provided behind the bottom of the outer tub 10, and the drain outlet 26 is connected to the inlet of the drain valve 27. When the drain valve 27 is opened, the water stored in the outer tub 10 is It passes through the drain pipe 28 and is discharged out of the machine via the lint filter 29.

  Note that the drum-type washing and drying machine of the present embodiment has a function for drying the laundry accommodated in the drum 13, and for that purpose, a fan, a fan motor, a heater (not shown), Although provided with a dehumidification part etc., since these are not related to this invention, description is abbreviate | omitted.

  Subsequently, a housing structure including a door mounting structure in the drum type washing and drying machine of the present embodiment will be described with reference to FIGS. 3 to 11 in addition to FIGS. 3 is a front perspective view of the housing structure in the drum type washing machine of the present embodiment, FIG. 4 is a rear perspective view of the housing structure, and FIG. 5 is a front view of the door (a) and a door opening / closing structure. FIG. 6 is a front view showing the front frame plate mounting structure, FIG. 8 is a front plan view of the housing 1 with the door removed, and FIG. 9 is a front decorative cover removed. FIG. 10 is an enlarged view of the edge of the front frame plate, FIG. 11 is a front view (a), a top view (b), a bottom view (c), and a main portion of the door latch mechanism. It is a right view (d).

  First, the overall structure of the housing 1 will be described with reference to FIGS. 3 and 4. The housing 1 is symmetrically arranged between a pair of left side plate 101 and right side plate 102 and upper front edges of the left and right side plates 101, 102. Passed between the front frame plate (front frame member in the present invention) 103 which is fixed by being passed and formed with a clothing input port 1b in the center and also serves as a mounting frame for the door 2, and the lower part of the front edge of the left and right side plates 101 and 102 Between the front reinforcing plate 104 to be fixed, the upper front reinforcing plate 105 to be fixed between the upper edge front portions of the left and right side plates 101 and 102, and the upper edge rear portions of the left and right side plates 101 and 102 Between the upper rear reinforcing plate 106 that is fixed while being passed, the upper rear plate 107 that is fixed between the upper rear edges of the left and right side plates 101 and 102, and the lower rear edge of the left and right side plates 101 and 102 Lower rear surface 108, a main rear plate 109 that closes the opening between the upper rear plate 107 and the lower rear plate 108, and an upper plate that rests on the upper front reinforcing plate 105 and the upper rear reinforcing plate 106 to close the upper surface 1c. 110, a top decorative cover 111 that covers most of the top plate 110, a front decorative cover 112 that covers the front frame plate 103, a front lower cover 113 that covers the bottom of the front decorative cover 112, and legs And a pedestal 114 to which the part is attached. Among these members, the upper plate 110, the upper decorative cover 111, the front decorative cover 112, the front lower cover 113, and the footrest 114 are made of synthetic resin with good workability, and other members other than these are stronger. Made of high metal.

  The upper edge portions of the left and right side plates 101, 102 are bent inward at a substantially right angle to form a flange having a predetermined width, and a reinforcing metal fitting having substantially the same width is fixed to the flange with a screw. The upper front reinforcing plate 105 and the upper rear reinforcing plate 106 are fixed to each other. Similarly, the front edge portions of the left and right side plates 101 and 102 are bent inward at substantially right angles to form flanges, and the front reinforcing plate 104 is fixed via a reinforcing metal fitting. Each of the upper front reinforcing plate 105 and the upper rear reinforcing plate 106 is a substantially U-shaped member in which both end portions of a metal plate member extending in the left-right direction are bent at a substantially right angle. Both end portions of the metal plate member extending in the left-right direction are members that are bent in a U-shape, and the side plates 101 and 102 can be firmly held by these members.

  Similarly to the front reinforcing plate 104, the door 2 is attached to the front frame plate 103 having a relatively high strength. Next, an attachment structure of the door 2 will be described. In FIGS. 1 to 5, the door 2 is left-opened in all cases, but it may be desirable to open the right-hand side depending on restrictions on the installation location of the washing machine and user preference. Therefore, the drum type washing and drying machine of the present embodiment has a structure that allows the left-opening specification and the right-opening specification to be selected while simplifying the manufacturing process and suppressing an increase in cost.

  As shown in FIG. 5A, the door 2 has a rectangular shape in front view in which four corners are formed with appropriate roundness. The door main body 51 which is a main component of the door 2 includes a door frame 52 made of a non-transparent synthetic resin having a circular opening formed in the center, and a heat-resistant attached to the opening of the door frame 52. A transparent window body 53 made of a transparent member such as glass and having a rear surface bulged into a truncated flat cone shape, covering the front surface of the transparent window body 53, and the center being semicircular (so-called smoked) in a substantially circular shape, And a synthetic resin door cover portion 54 whose periphery is opaque. As a result, a large translucent see-through window is formed at the center of the door 2, and the inside of the drum 13 can be seen through the see-through window even when the door 2 is closed.

  Two hinges, which will be described later, are separated from each other by a predetermined vertical distance on one side of the door body 51 (on the left side in the case of the left-opening specification) in the vertical direction (that is, the left side of the rectangle in FIG. 5A). A hinge arm attaching portion 63a to which the arm 63 is attached is provided. In the hinge arm attachment portion 63a, one end of the hinge arm 63 is fixed to the back surface of the door frame 52 with a screw. When the door main body 51 is circular when viewed from the front, it is difficult to provide two hinge arms apart from each other. On the other hand, in this drum type washing and drying machine, since the door body 51 has a substantially rectangular shape when viewed from the front, the mounting position of the two hinge arms 63 (that is, the hinge arm mounting portion 63a) can be separated. As a result, the strength of holding the door 2 can be increased, and the load applied to members such as the mounting portion and screws can be appropriately dispersed to increase the durability.

  On the other hand, the central point of the circular opening of the door frame 52 is located at the vertical straight portion (that is, the right side of the rectangle in FIG. 5A) of the edge of the door body 51 on the opposite side of the hinge arm attachment portion 63a. On a horizontal line (center line) F passing through G, a hook 55 as a locking portion in the present invention is provided so as to protrude rearward from the door frame 52, and at a substantially symmetrical position vertically with the hook 55 interposed therebetween. The door frame 52 is recessed forward to form an operating body receiving portion 56. In addition, since the door main body 51 is slightly thinner than the periphery in the part of the operation body receiving portion 56, the thickness is just right for the user to grip when opening the door.

  The door 2 is substantially symmetrical with respect to the center line F. That is, the positions of the two hinge arm attachment portions 63a and the two actuating body receiving portions 56 are substantially equally spaced from the center line F, and the hooks 55 are located on the center line F. Therefore, even if the door 2 is rotated 180 ° around the center point G so that the door 2 is turned upside down (upside down), the appearance is the same as the door 2 turned upside down with respect to the vertical line F ′.

  As shown in FIG. 6, the front frame plate 103 is made of a metal plate, and a circular opening 41 corresponding to the clothing insertion port 1 b is formed at the center thereof, and both end portions are attachment portions 44 that are elongated in the vertical direction. . The front frame plate 103 is fixed to the flanges formed at the front edge portions of the left and right side plates 101, 102 at the mounting portion 44, and the front edge portion (flange) is flat within the range facing the mounting portion 44, That is, as a whole, a straight line is formed in the vertical direction instead of a curved shape while being directed obliquely upward. As a result, if the portion of the mounting portion 44 that contacts the flange is also made flat, it is possible to improve the adhesion of the contact surfaces of both, and even when the front frame plate 103 is rotated 180 ° as will be described later. Equivalent adhesion can be ensured.

  A hinge mounting portion 42 for mounting the hinge mechanism 60 including the hinge arm 63 described above is provided between the mounting portion 44 and the opening 41 positioned on the left side in the left opening specification, and is positioned on the right side. Between the mounting portion 44 to be opened and the opening 41, the door 2 is held in a closed state by engaging with the hook 55 provided on the door 2 described above, that is, latched, and the release of the latch is prevented. The door latch mounting part 43 for attaching the door latch mechanism 70 which locks, that is, locks the door 2 is provided.

  As shown in FIG. 10, the elongated attachment portions 44 at both ends are formed in a substantially U-shaped cross-section as shown in FIG. The inside of the substantially U-shaped cross section is a lead wire guide groove 47, and a plurality of holes 48 are formed in the inner wall surface. In this drum type washer / dryer, a plurality of lead wires 90 are passed through the lead wire guide groove 47 on the right end side, and the claw at the end of the resin binding band 91 that binds the plurality of lead wires 90 is formed in the hole 48. Insert into and fix. Thereby, the plurality of lead wires 90 are stably accommodated along the lead wire guide grooves 47, and the lead wires 90 are prevented from moving greatly due to vibration or the like.

  The hinge mechanism 60 is connected to the hinge mounting portion 42, a rotating shaft portion 62 including a spring attached to the mounting plate 61 so as to extend in the vertical direction, and the rotating shaft portion 62. And the above two hinge arms 63. The hinge arm 63 is rotatable around the rotation shaft portion 62, and the door 2 is opened by the biasing force of the spring provided on the rotation shaft portion 62 (that is, in the clockwise direction in FIG. 5B). ). Therefore, when the engagement between the hook 55 and the door latch mechanism 70 is released and no external force is applied as will be described later, the biasing force of the spring assists the user when opening the door 2.

  The structure of the door latch mechanism 70 attached to the door latch mounting part 43 is as follows. The main part of the door latch mechanism 70 is accommodated in a flat rectangular parallelepiped box 71 made of synthetic resin as shown in FIG. An insertion opening 72 is provided on the front surface of the box 71 at a position that is exactly the center line F when attached to the front frame plate 103, and the tip of the hook 55 passes through the insertion opening 72 when the door 2 is closed. Inserted inside. Inside the box 71, a door latch portion 73 including an engaging member that engages with the hook 55 when it is inserted and a drive mechanism using a heart cam mechanism, and the hook 55 is engaged by the door latch portion 73. And an electromagnetic solenoid 74 for preventing the release of. When the hook 55 is inserted into the box 71 when the door 2 is closed so as to close the clothes insertion slot 1b, the engagement member of the door latch portion 73 engages with the hook 55, and the door 2 It is held in that state, that is, in a closed state. An actuating body 77 protrudes from the front surface of the box 71. When the operating button 8 that rotates about a shaft 8a extending in the vertical direction is pushed as shown in FIG. 9, the actuating body 77 is pushed. The engagement of the hook 55 by the door latch portion 73 is released.

  As shown in FIG. 9, a door opening auxiliary operating body 79 that is rotatable about a shaft 79a extending in the vertical direction is provided above and below the box 71, and when the operation button 8a is pressed as described above, The upper and lower extending pieces 8b integrated with the operation button 8a push the right end portion of the door opening auxiliary operating body 79, and the left end portion of the door opening auxiliary operating body 79 projects forward accordingly. This position is just the working body receiving portion 56 of the door 2 and pushes the door main body 51 in a state where the door latch is released forward. As a result, the door 2 is slightly opened, and thereafter, the user can easily open the door 2.

  Furthermore, the door is locked during operation so that the door 2 does not open immediately. That is, when a drive current is supplied to the electromagnetic solenoid 74 from a control circuit (not shown), the actuating body of the solenoid 74 operates, and each time the engagement release operation of the door latch portion 73 is blocked and non-blocked alternately. Switch. Therefore, for example, when the operation is started, the electromagnetic solenoid 74 is activated and the door latch portion 73 is prevented from being disengaged. At this time, even if the operation button 8 is pressed, the door latch is not released and the door 2 is moved. will not open. Thereby, water leakage to the outside can be prevented and safety is ensured. Further, when the operation is completed or the user performs a predetermined operation for forcibly opening the door 2, the electromagnetic solenoid 74 is activated and the door latch portion 73 is disengaged from the non-blocking state. At this time, the door latch is released according to the pressing operation of the operation button 8, and the door 2 is slightly opened.

  Here, the structure of the door latch portion using the heart cam mechanism is not described in detail, but the basic operation is disclosed in, for example, Japanese Patent Application Laid-Open No. 2005-354209.

  Although the internal structure of the box 71 in the door latch mechanism 70 is as described above, the insertion opening 72 on the front surface of the box 71 is exposed as shown in FIG. There is a risk of water entering. Since the door latch 73 is composed of only mechanical parts, there is no problem even if it is flooded. However, since the electromagnetic solenoid 74 is an electrical part, there is a risk of failure such as a short circuit. Therefore, the electromagnetic solenoid 74 is provided at a position away from the insertion opening 72 in the lateral direction, and a water guiding rib 75 is formed in the vicinity of the insertion opening 72 to prevent water from flowing to the electromagnetic solenoid 74 side. It is. Further, water drain holes 76a and 76b are provided on the upper wall surface and the lower wall surface of the box body 71 so that the water entering the box body 71 is quickly discharged without collecting. Thus, even when the door latch mechanism 70 is rotated 180 ° together with the front frame plate 103 in order to change the opening direction of the door 2 as will be described later, a drain hole is always provided on the lower wall surface of the box 71. Exists and can reliably drain water.

  As shown in FIG. 6, the outer shape of the front frame plate 103 is substantially vertically symmetric with respect to the center line F, and the positions of the hinge mounting portion 42 and the door latch mounting portion 43 are also vertically symmetric with respect to the center line F. is there. Therefore, similarly to the door 2, even if the center point G is rotated by 180 °, the appearance is almost the same as the case where the front frame plate 103 is horizontally reversed with respect to the vertical line F ′. Therefore, if the door 2 is attached to the front frame plate 103 and rotated 180 ° as described above, the left-opening specification can be changed to the right-opening specification. The positions of the operation buttons 8 are also symmetrical.

  However, the position of the screw hole provided in the attachment portion 44 for attaching the front frame plate 103 to the both side plates 101 and 102 is changed between the left opening specification and the right opening specification. That is, a left opening specification screw hole 44L and a right opening specification screw hole 44R are separately drilled in the mounting portion 44, and a left opening specification screw hole 44L is next to the left opening specification screw hole 44L to identify both. An "L" mark 45 is added so that it can be read correctly at the position of the specification. In addition, screw holes corresponding to the left opening specification screw hole 44L and the right opening specification screw hole 44R are also formed in the flanges 101a, 102a bent inward at the front edge portions of the side plates 101, 102. (Not shown). Each of the screw holes 44L and 44R is determined so that the position of the front frame plate 103 becomes an appropriate position in a state where the members constituting the housing 1 are preliminarily assembled.

  Accordingly, when the door 2 is attached with the left opening specification in the actual manufacturing process, the front frame plate 103 is positioned as shown in FIG. 6 and the left opening specification screw hole marked with “L” 45 is attached. The front frame plate 103 is fixed to the side plates 101 and 102 by inserting and tightening screws into 44L. On the other hand, when the door 2 is attached with the right-opening specification, as shown in FIG. 7, the front frame plate 103 is positioned so as to rotate 180 ° from FIG. The front frame plate 103 is fixed to the side plates 101 and 102 by inserting and tightening screws into the right opening specification screw holes 44R not attached.

  In general, it is unavoidable that various members constituting the housing 1 are displaced from design values in the manufacturing process. Therefore, if the screw holes are to be shared between the case where the front frame plate 103 is attached in the 0 ° state and the case where it is attached in the 180 ° state as described above, it is necessary to provide a vertically long screw hole that can absorb the dimensional deviation. However, in such a screw hole, the mounting position of the front frame plate 103 is not accurately determined, and there is a risk that assembly failures will increase. On the other hand, the front frame plate 103 is attached in the 0 ° state and the 180 ° state when the front frame plate 103 is attached from the beginning by providing a separate screw hole so that the front frame can be accurately positioned with the same workability as in the prior art. A plate 103 can be attached.

  Moreover, in the drum type washing / drying machine of the present embodiment, as described above, the shape of the door 2 is rectangular when viewed from the front, and the edge of the door frame body 52 facing the hinge arm attachment portion 63a is linear. Therefore, as shown in FIG. 5B, there is a range in which the gap between the front surface of the housing 1 (the front surface of the front decorative cover 112) and the door body 51 is the same when the door 2 is opened. Longer in the vertical direction. Therefore, if this gap is narrow, it is easy for the user to pinch his / her finger. Therefore, by providing the pivot shaft portion 62 of the hinge mechanism 60 relatively forward as compared to the case of a door having a circular shape when viewed from the front as in the prior art, the gap distance d when the door 2 is opened is set. It is intentionally wide. Specifically, by securing the distance d to 15 mm or more, the fingers are prevented from being pinched.

  Next, the attachment structure of the front lower cover 113 attached to the lower front part of the housing 1 and the opening / closing structure of the inspection port cover 115 that opens and closes the lint filter inspection port provided in the cover 113 will be described with reference to FIGS. Will be described. 12 is an external view of the back side of the front lower cover 113, and FIG. 13 is an enlarged view of the inspection port cover 115 opened.

  As shown in FIG. 12, three engaging claws 113a projecting rearward are formed on the upper edge portion of the front lower cover 113, and two screws for inserting screws from the front at both ends of the lower portion. The boss 113c is formed. The front lower cover 113 is positioned in the vertical direction by hooking the three engaging claws 113a on the front reinforcing plate 104, and by screwing the screws inserted into the screw holes of the boss 113c from the front into the leg base 114. Fixed. Therefore, when the engagement claw 113a is broken, the upper side latch is insufficient. On the other hand, as a characteristic configuration of the present embodiment, an upper surface L-shaped rib 113b extending to a position slightly higher than the claw 113a is provided on both sides of each engagement claw 113a. Ribs on both sides of the engagement claw 113a when the front lower cover 113 is transported alone, assembled at the manufacturing site, or when a service person removes the front lower cover 113 for repair etc. The presence of 113b makes it difficult for a hard object to directly hit the engaging claw 113a. Thereby, the engagement claw 113a can be prevented from breaking.

  Further, as shown in FIG. 13, a synthetic resin inspection port cover 115 is also provided on the front surface of the front lower cover 113 made of synthetic resin so as to be openable so as to fall down on the front side about the horizontal shaft 115a. Yes. A lint filter 29 that collects lint at the time of drainage is attached to the back of the open opening so as to be freely drawn out forward. A small convex portion 115b is formed on the upper side of the side wall of the inspection port cover 115 and protrudes to the left and right sides. When the inspection port cover 115 is closed, the convex portion 115b is formed on the inner side of the side wall 113d of the opening. The inspection port cover 115 is locked in the closed state by fitting into the recessed portion 113f.

  In the drum type washer / dryer of the present embodiment, the front lower cover 113, the inspection port cover 115, and the like are coated to improve the design, and this is the same for the side wall 113d of the front lower cover 113. However, when the inspection portion cover 115 is closed, if the convex portion 115b is repeatedly rubbed, the painted surface may be peeled off. On the other hand, as a characteristic configuration of the present embodiment, the side wall 113d is formed with an inwardly bulging portion 115e, and the recess 113f is provided near the front end thereof. Thereby, when the inspection port cover 115 is closed, the range in which the projection 115b rubs until the projection 115b reaches the recess 113f can be made extremely small, and can be suppressed to an inconspicuous level even when the coating is peeled off. Although only the left side is visible in FIG. 13, the right side wall is the same.

  Next, the characteristic structure about the attachment structure of the operation panel 5 provided above the door 2, and the operation box containing the circuit board inside it is demonstrated. 14 is a longitudinal sectional view of the vicinity of the operation panel 5, FIG. 15 is a plan view of the main part of the circuit unit, and FIG. 16 is a vertical sectional view of the main part of the circuit unit.

  As shown in FIG. 14, in the operation panel 5, a circuit unit including a circuit board 80 and a case 81 in which the circuit board 80 is housed is housed and covered in a recess formed by the upper surface plate 110. As described above, an operation plate 86 which is a molded product of a synthetic resin is attached. The operation plate 86 is attached to the upper part of the front decorative cover 112, and the lower edge of the operation plate 86 is formed by inserting a protrusion 86 b formed at the lower end of the operation plate 86 into an engagement hole formed in the front decorative cover 112. The upper edge portion of the operation plate 86 has a fitting piece 86c extending forward from a substantially L-shaped standing wall 86a formed at the upper end of the operation plate 86, and the front decorative cover 112 is bent backward. It is fixed by fitting in the fitting part 112a. When water flows from the upper surface, water may enter the gap between the front decorative cover 112 and the operation plate 86. As described above, a substantially L-shaped standing wall 86a is formed at the upper end of the operation plate 86. Thus, it is possible to prevent water from getting over to the circuit unit side.

  As shown in FIG. 15, various components are mounted on a circuit board 80 accommodated in a case 81. In FIG. 15, reference numeral 82 denotes a push button switch for a start key. . This push button switch 82 is a non-locking type switch that opens and closes two contact points only when a protruding operation element is pressed. The operation plate 86 on the upper side thereof receives a pressing force from substantially vertically above. A pressing force receiving portion 87 including a spiral spring portion having an elastic force in a direction to receive the pressing force is transmitted to the operator of the push button switch 82.

  Further, around the push button switch 82, three LEDs 83 are provided for illuminating the display portion of the switch, and a cylindrical light shielding cover 84 is attached so as to surround the LED 83. The light shielding cover 84 is for preventing the light emitted from the LED 83 from leaking to other than the display portion of the switch. Here, a part of the light shielding cover 84 is provided so as to protrude outside the case 81. When the entire light shielding cover 84 enters the case 81, the circuit board 80 becomes larger by that amount. However, by making a part of the light shielding cover 84 protrude as in the above configuration, the circuit accommodated in the case 81. The size of the substrate 80 can be reduced, which is effective for cost reduction. Conversely, the range illuminated by the LED 83 can be expanded without being restricted by the size of the circuit board 80.

  As shown in FIG. 16, a membrane sheet 88 is attached to the surface of the operation plate 86 as a film that forms the operation surface using an adhesive or the like. The membrane sheet 88 is a flexible resin sheet, the position corresponding to the pressing force receiving portion 87 bulges forward, and a switch display (characters and patterns) is drawn on the center, and the center is circular. The light transmitting portion 88a is transparent or translucent, and the portion other than the light transmitting portion 88a is a light shielding portion 88b. Therefore, when the LED 83 is turned on, the light spreads upward, that is, outside the apparatus only through the circular light transmission portion 88a.

  The three LEDs 83 are arranged on the same circumference, but the diameter of the circle is set larger than the diameter of the circular light transmission part 88a. That is, not the light transmitting portion 88a but the light shielding portion 88b is disposed directly above each LED 83 (that is, on the optical axis). As is well known, an LED has directivity, has the highest emission intensity on the optical axis, and the light becomes weaker as the distance from the optical axis increases. Therefore, in the said structure, the inner surface of the light transmissive part 88a is illuminated in the state which the relatively weak light each each radiate | emitted from three LED83 mixed appropriately. Therefore, when viewed from the outside, each LED 83 is not conspicuous as a point light source, and even if the number of LEDs is about three, it shines with substantially uniform brightness, and the appearance is good.

  It should be noted that the above embodiment is an example of the present invention, and it is obvious that even if changes, modifications, and additions are made as appropriate within the scope of the present invention, they are included in the claims of the present application.

1 is an external perspective view of a drum type washing and drying machine according to an embodiment of the present invention. The schematic side surface longitudinal cross-sectional view of the drum type washing-drying machine of a present Example. The front perspective view of the housing | casing structure in the drum type washing-drying machine of a present Example. The rear perspective view of the housing | casing structure in the drum type washing-drying machine of a present Example. The front view (a) of the door in the drum type washing-drying machine of a present Example, and the schematic top view (b) which shows the opening-and-closing structure of a door. The front view which shows the attachment structure of the front frame board in the drum type washing-drying machine of a present Example (door left opening specification). The front view which shows the attachment structure of the front frame board in the drum type washing-drying machine of a present Example (door right opening specification). The front top view of the housing | casing of the state which removed the door. FIG. 9 is an enlarged view of the vicinity of a door latch mechanism in a state where a front decorative cover is further removed from the state of FIG. 8. The enlarged view of the edge of a front frame board. The front view (a) of the principal part of a door latch mechanism, a top view (b), a bottom view (c), and a right side view (d). The back side external view of a front lower cover. The enlarged view of the state which opened the inspection port cover. The longitudinal cross-sectional view of the operation panel vicinity. The top view of the principal part of a circuit unit. The longitudinal cross-sectional view of the principal part of a circuit unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Housing 1b ... Clothing input port 101 ... Left side plate 102 ... Right side plate 103 ... Front frame plate 104 ... Front reinforcement plate 105 ... Upper front reinforcement plate 106 ... Upper rear reinforcement plate 107 ... Upper rear plate 108 ... Lower rear Face plate 109 ... Main rear plate 110 ... Upper surface plate 111 ... Upper face decorative cover 112 ... Front face decorative cover 112a ... Fitted portion 113 ... Front lower cover 114 ... Leg base 115 ... Inspection port cover 2 ... Door 10 ... Outer tub 10a ... Outside Tank opening 11 ... Damper 12 ... Packing 13 ... Drum 13a ... Drum opening 14 ... Main shaft 15 ... Bearing fixing member 16 ... Bearing 17 ... Motor 41 ... Opening 42 ... Hinge mounting portion 43 ... Door latch mounting portion 44 ... Mounting portion 44L ... Left opening Specification screw hole 44R ... Right opening specification screw hole 45 ... Mark 47 ... Lead wire guide groove 48 ... Hole 51 ... Door body 52 ... Door frame body 53 ... Transparent window body 54 ... Door cover part 55 Hook 56 ... Actuator receiving portion 60 ... Hinge mechanism 61 ... Mounting plate 62 ... Rotating shaft 63 ... Hinge arm 63a ... Hinge arm attaching portion 70 ... Door latch mechanism 71 ... Box body 72 ... Insertion opening 73 ... Door latch portion 74 ... Electromagnetic Solenoid 75 ... Rib 76a, 76b ... Drain hole 77 ... Operating body 79 ... Door opening auxiliary operating body 79a ... Axis 8 ... Operating button 90 ... Lead wire 91 ... Bundling band

Claims (6)

A box-shaped housing having a clothing insertion port that is opened and closed by a door on the front surface, an outer tub disposed inside the housing and having an opening on the front surface, and an inclined shaft extending in the front-rear direction inside the outer tub A drum-type washing machine comprising:
The door includes a door main body, a hinge arm attaching portion for rotating the door main body around a door shaft extending in the vertical direction in the door main body, and the door main body closing the clothes input port. A locking portion for maintaining the state,
The case is attached to the right side plate member and the left side plate member covering both the left and right side surfaces and the front edge of the side plate members, and forms a frame for the clothing input port and opens and closes the door. A hinge mounting portion for mounting a hinge mechanism including the door shaft and a hinge arm, and a door latch mounting portion for mounting a door latch mechanism for holding the door closed by engaging with a locking portion of the door A frame member, and a front decorative cover attached to the front surface of the frame member so as to cover the front frame member,
In order to enable the selection of the left opening specification and the right opening specification of the door by rotating the front frame member 180 ° when attaching the front frame member to the both side plate members,
The right and left part of the front edge portions of the side plates member is straight line shape you directed obliquely upward so as to correspond to the inclination of the drum,
A lead wire guide groove having a U-shaped cross-section with a front opening is formed at both end portions of the front frame member in order to pass a plurality of lead wires in the vertical direction. In addition, a plurality of holes into which the screw member or the caulking member is inserted to attach the front frame member to the straight front edge of the both side plate members are located at different positions in the left opening specification and the right opening specification, respectively. Drilled,
Operation buttons for releasing the retention of the door closed state by the door latch mechanism mounted on said front frame member is formed by vertically disposed central position of the door in a state of being closed in the front face cover A drum-type washing machine characterized by that.
  The edge of the hinge arm on the attachment portion side of the door body has a linear portion extending in the vertical direction, and the two hinge arms are respectively attached to the upper and lower positions along the linear portion. The drum type washing machine according to claim 1.   The drum type washing machine according to claim 2, wherein the door body is substantially rectangular in a front view.   The position of the axis of the hinge mechanism is set so that a gap of a predetermined distance or more is formed between the straight part of the door body and the front decorative cover on the front surface of the housing when the door is opened. The drum type washing machine according to claim 3.   The door latch mechanism is a portion located on the back side of the door body when the door is closed, and the door opening auxiliary operating body protruding forward in conjunction with the pressing of the operation button for releasing the door latch. The drum type washing machine according to claim 1, wherein the drum type washing machine is provided above and below the portion where the locking portion is engaged. The door latch mechanism includes a box having an insertion opening formed on a front surface into which the locking portion is inserted when the door is closed, an engaging member that is inside the box and engages the locking portion, An engagement release mechanism that releases the engagement by the engagement member in response to a pressing operation of the operation button, and a door lock portion that operates a blocking portion that prevents the engagement release operation of the engagement release mechanism by electrical control. The door lock portion is disposed inside the box and is spaced apart from the insertion opening in the lateral direction, and water drainage holes are drilled in the upper and lower wall surfaces of the box, respectively. The drum type washing machine according to claim 1, wherein

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