JP2004351226A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve operability of opening a door which is kept closed. <P>SOLUTION: When a user holds a handlebar 64 provided on a first door 22 and turns it down, hooks 67 move associated with the handlebar from both end brackets 64a of the handlebar 64 via connecting members 161 and a shaft 66 to turn up against energized power of extension coil springs 70. Thus, pawl sections 67a of the hooks 67 come off holes 72 of a switch case 71 to release the first door 22 from the closure condition. This improves operability of opening the door which is kept closed only by operating the handlebar 64 because it is unnecessary to operate other operation members such as a push button. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a dishwasher having a door.

Conventionally, as shown in FIG. 25, a dishwasher provided with a single door 2 that can be opened and closed on the front surface of a main body 1 is generally provided.
On the other hand, as shown in FIG. 27, a door provided with two doors is also provided. In this case, the door is divided into a lower door 11 and an upper door 12, and furthermore, they are folded upward as shown in FIG. 28 and opened, and as shown in FIG. And an upper part which is rotated and opened separately.

  DISCLOSURE OF THE INVENTION The present invention relates to a tableware having a door as described above, having holding means for holding the door in a closed state, and improving operability when opening the door in the closed and held state. It is to provide a washing machine.

  In order to achieve the above object, a dishwasher according to the present invention has a washing room, has an opening for taking in and out tableware into and out of the washing room, and has a dish housed in the washing room. A main body having a cleaning mechanism for cleaning the main body, a door that is openably and closably attached to the main body, a door that closes the opening, holding means for holding the door in a closed state, and a door provided on the door, A handle for opening the door, wherein the holding means releases the closed and held state of the door by operating the handle.

  According to the above means, when the door in the closed and held state is opened, only the handle needs to be operated, and there is no need to operate another operation member such as a push button. Thus, the operability when opening the door in the closed and held state can be improved.

Hereinafter, a basic configuration of the present invention will be described with reference to FIGS.
First, FIG. 2 shows a main body 21 of a dishwasher, a first door 22, a second door 23, and an operation panel 24 provided on a front portion thereof.
The main body 21 has an outer box 25 as an outer shell, an inner box 26 shown in FIG. 3 is disposed inside the outer box 25, and the inside of the inner box 26 is a washing chamber 27. The cleaning chamber 27 has an open front surface, and the opening 28 is closed by both the first door 22 and the second door 23.

  In the cleaning chamber 27, a heater 29 made of, for example, a sheath wire is disposed at the bottom, and a fountain arm 30 as an injection body is rotatably connected and supported by a pipe-shaped arm support 31 above the heater 29. It is arranged. Further, a dish basket 32 is disposed in a portion above the fountain arm 30 in the washing room 27. The tableware basket 32 has sleds 33 on the left and right sides on the bottom, and the sleds 33 can be drawn in and out of the opening 28 by a drawer system that slides on rails 34 on both sides in the washing chamber 27. ing. Further, the dish basket 32 arranges dishes (not shown) to be washed, so that the dish can be put in and out of the washing room 27 through the opening 28 together with the dish basket 32. I have.

A water supply valve 35 is attached to the back of the cleaning chamber 27 (the back of the inner box 26), and a water supply pipe 36 that connects to a water supply (not shown) is connected to the water supply valve 35. Accordingly, tap water is supplied from the water supply pipe 36 through the water supply valve 35 into the cleaning chamber 27 as cleaning water.
A cleaning pump 37, a drainage pump 38, and a common pump motor 39 for driving the cleaning pump 37, the drain pump 38, and the like are arranged in the outer lower part of the cleaning chamber 27 (the outer lower part of the inner box 26). The pump motor 39 is rotatable, for example, in both clockwise forward rotation and counterclockwise reverse rotation. The forward rotation drives the cleaning pump 37 (the drainage pump 38 does not function at this time), and the reverse rotation rotates the drainage pump. 38 (at this time, the cleaning pump 37 does not function).

  In addition, a water storage tank 40 communicating with the inside of the cleaning chamber 27 is provided at the outer lower part of the cleaning chamber 27, and a connection pipe 41 for connecting the water storage tank 40 and a suction port of the cleaning pump 37, and a water storage tank 40 are provided. A connection pipe 42 for connecting to a suction port of the drain pump 38 is provided. Further, the discharge port of the cleaning pump 37 is connected to the arm support 31, and further connected to the fountain arm 30 to which the arm support 31 communicates, and the drain port of the drain pump 38 is connected to a drain hose 43. .

  In this configuration, the cleaning pump 37 sucks the cleaning water supplied from the water supply valve 35 and stored in the lower part of the cleaning chamber 27 from the water storage tank 40 through the connection pipe 41 from the water storage tank 40 and supports the arm. The water is fed to the fountain arm 30 through 31. The pressure-fed washing water is ejected from a plurality of fountain ports 30a provided in the upper part of the fountain arm 30, and the fountain arm 30 also rotates by the reaction of the fountain.

Thus, the washing water is evenly sprayed into the washing room 27 via the tableware basket 32 toward the tableware accommodated therein, and the tableware is washed and rinsed. Therefore, the washing pump 37 and the fountain arm 30 constitute a washing mechanism 44 for washing the dishes stored in the washing chamber 27.
On the other hand, the drain pump 38 sucks the washing water in the washing chamber 27 from the inside of the water storage tank 40 through the connection pipe 42, and discharges the washing water to the outside through the drain hose 43.

  A blower 45 is provided at the back of the cleaning chamber 27, and the blower 45 sucks outside air and sends it to the inside from the lower part of the cleaning chamber 27 through the duct 46. A water level detecting device 47 is provided at a lower portion of the back of the cleaning chamber 27. The water level detecting device 47 communicates with the inside of the water storage tank 40 by a connection pipe (not shown), and furthermore, the cleaning chamber with which the water storage tank 40 communicates. The cleaning chamber 27 is in communication with the inside of the cleaning chamber 27 and detects the level of the cleaning water in the cleaning chamber 27.

  The operation panel 24 is provided for the user to perform necessary operations for the above operation of the main body 21. The operation panel 24 is attached to a portion below the opening 28 on the front surface of the outer box 21 as shown in FIG. Has various operation keys 48. As shown in FIG. 3, a control device 49 composed of, for example, a microcomputer is provided on the back side of the operation panel 24. The control device 49 controls the operation of the main body 21 based on the operation of the operation panel 24. The operation is controlled.

Now, with respect to the main body 21 as described above, the first door 22 and the second door 23 are divided vertically in this case, and the first door 22 is set to the lower side (lower door). Is an upper side (upper door).
As shown in FIG. 4, the first door 22 is attached to the main body 21 so as to be rotatable up and down by a shaft 50 (only one is shown) at both left and right ends of the lower side. The first door 22 pivots downward about the shaft 50 and is opened (see FIG. 1). Therefore, in this case, the rotation of the first door 22 about the shaft 50 is the opening and closing movement of the first door 22.

  On the other hand, the second door 23 has upper and lower left and right ends mounted on a door support plate 52 by shafts 51 (only one of which is shown) so as to be rotatable up and down. The door 23 is rotated upward about a shaft 51 and is opened (see FIG. 1). Therefore, in this case, the rotation of the second door 23 about the shaft 51 is the opening and closing movement of the second door 23. The door support plate 52 is attached and fixed to the uppermost part of the main body 21 by screws 53.

  An interlocking mechanism 54 is provided between the first door 22 and the second door 23 and at the center of rotation of the second door 23. More specifically, the interlocking mechanism 54 includes a distal end portion of a connection plate 55 (only one of which is shown) protruding from the center of rotation on both the left and right sides of the first door 22 and the left and right sides of the second door 23. A wire connecting a tip of a connecting plate 56 (only one of which is also shown) protruding from the portion near the center of rotation on both sides, particularly a wire main body 57a made of a steel cable in this case, and a slidable wire. It comprises a cable wire 57 comprising a movably covered outer cable 57b and a torsion coil spring 58 wound around a shaft 51 which is the center of rotation of the second door 23.

  Thus, the cable wire 57 fixes both ends of the outer cable 57b to the left and right outer surfaces of the inner box 26 with the stoppers 59, respectively, and connects both ends of the wire main body 57a to the connection plate 55, It is connected to each of the 56 tips. Pulleys 60 and 61 for guiding the wire body 57a are provided between the tip of the connection plate 56 of the second door 23 and the upper end of the outer cable 57b on the connection plate 56 side. A tension pulley 63 urged downward along with the support arm 63a by a tension coil spring 62 between the pulleys 60 and 61 is applied to the wire main body 57a from above. Provided in contact.

  On the other hand, as shown in detail in FIG. 5, the torsion coil spring 58 has one end 58a hung on the door support plate 52 and the other end 58b hung on a portion of the second door 23 above the shaft 51. I have. As a result, a turning force in the opening direction indicated by the arrow A is applied to the second door 23, so that the torsion coil spring 58 functions as urging means for urging the second door 23 in the opening direction. I have to.

  On the other hand, as shown in FIG. 2, a horizontally long handle 64 serving as a handle for opening the door is provided on the upper side of the front surface of the first door 22. A push button 65 is provided at a central portion of the device, that is, at a position where the user can operate the handle 64 with one hand at the same time. As shown in detail in FIG. 6, the push button 65 has an upper part attached to a shaft 66, and the shaft 66 is rotatable in a horizontal shaft extending left and right in the hollow first door 22. It is supported, and hooks 67 are attached to both ends thereof. The hook 67 has a claw portion 67a as an engaging portion at a distal end portion, a slope portion 67b at a lower edge portion ahead of the hook portion 67a, and a step portion 67c further ahead of the hook portion 67a. I have.

  The tip of the hook 67 having the claw portion 67a, the inclined surface portion 67b, and the step portion 67c protrudes rearward through the hole 68 formed in the rear wall of the first door 22 so as to be vertically movable. A tension coil spring 70 is stretched between an intermediate portion of the hook 67 located inside the first door 22 and a spring hook 69 provided below the hook 67 to urge the hook 67 downward. ing.

  A switch case 71 is provided on both left and right outer surfaces of the inner box 26 corresponding to the hooks 67. The switch case 71 has a hole 72 as an engaged portion on a front surface thereof, and a hook 67 engages a claw 67a (engaging portion) with a lower edge portion of the hole 72, and the hook 67 By maintaining the urging force of the spring 70, the first door 22 is held (locked) in a closed state.

  In a state where the first door 22 is closed and held in the closed state, as shown by an arrow B in FIG. 4, the cable wire 57 of the interlocking mechanism 54, particularly the wire main body 57a thereof, Is pulled downward by the connecting plate 55 of the second door 22, and the connecting plate 56 of the second door 23 is pulled against the urging force of the torsion coil spring 58, whereby the second door 23 is also closed and closed. Is to be held. Therefore, the hook 67, the extension coil spring 70, and the switch case 71 hold the first door 22 in a closed state, and thus function as holding means (locking means) for holding the second door 23 in a closed state. Has become.

In the switch case 71, an actuator 73 that can swing around a fulcrum 73a at an intermediate portion and a switch operated by the actuator 73, in particular, a micro switch 74 are provided. Here, when the first door 22 is kept in the closed state, one end of the actuator 73 is pushed down by the step portion 67c of the hook 67, and the operation button 74a of the micro switch 74 is pushed by the other end. As a result, the microswitch 74 operates to detect the closing and holding of the first door 22.
In addition, as shown in FIG. 2, an exhaust port 75 for exhausting air from the inside of the cleaning chamber 27 is provided in the upper part of the front surface of the second door 23.

  Now, in the case of the above-described configuration, the first door 22 and the second door 23 are now in the closed holding state shown in FIG. 4, and from this state, the user holds the handle 64 with one hand, When the push button 65 is pressed with the fingertip, the hook 67 is interlocked with the push button 65 via the shaft 66, and the hook 67 is moved upward from the state shown in detail in FIG. 6 against the urging force of the extension coil spring 70. Rotate. As a result, the hook 67a of the hook 67 is disengaged from the hole 72 of the switch case 71 to release the first door 22 from the closed state.

  At this time, the actuator 73 is released from pushing down the one end by the stepped portion 67c of the hook 67, and the actuation button 74a of the micro switch 74 is released from the other end, so that the micro switch 74 is deactivated. , Detecting the release and opening of the closed state of the first door 22. Therefore, the actuator 73 and the microswitch 74 function as detecting means for detecting opening / closing, closing and holding of the first door 22, and canceling the holding.

After that, when the user opens the first door 22 with the hand holding the handle 64, as shown by the arrow C in FIG. The tension of the wire body 57a is released, and the tension of the connection plate 56 of the second door 23 is released via the wire body 57a, whereby the urging force of the torsion coil spring 58 is exerted on the second door 23. Released by
At this time, the interlocking mechanism 54 increases the degree of opening of the second door 23 with respect to the degree of opening of the first door 22. Specifically, the lower first door 22 is substantially horizontal. The second door 23 is opened until it is almost vertical (about 180 degrees).

  When the user closes the first door 22 from this state, as shown by the arrow B in FIG. 4, the cable wire 57 of the interlocking mechanism 54, particularly the wire main body 57a thereof, The second door 23 is also closed by being pulled downward by the connection plate 55 of the first door 22 and pulling the connection plate 56 of the second door 23 against the urging force of the torsion coil spring 58.

At this time, the hook 67 engages the claw portion 67 a (engaging portion) with the lower edge portion of the hole 72 of the switch case 71, and this is maintained by the urging force of the extension coil spring 70. As a result, the first door 22 is held in the closed state, and thus the second door 23 is also held in the closed state.
Further, at this time, the hook 67 pushes down one end of the actuator 73 by the step 67c, and the actuator 73 pushed down at one end pushes the operation button 74a of the micro switch 74 by the other end. 74 is activated, and the closing and holding of the first door 22 and, consequently, the closing and holding of the second door 23 are detected.

  As described above, in this configuration, the door is composed of the first door 22 and the second door 23, and when the doors are opened, the conventional one door is provided in front of the main body 21. It doesn't occupy a large space like a door. Therefore, even when the door is installed in a narrow space such as the end of the sink 4 on the kitchen cabinet 3 shown in FIG. 26, there is a problem that the opened doors 22 and 23 hit the water tap 5. You can not.

Further, since both the first door 22 and the second door 23 are attached to the main body 21, both are supported by the main body 21 even in the open state, so that the stability can be improved.
Then, since the second door 23 is opened and closed by interlocking the second door 23 with the opening and closing of the first door 22 by the interlocking mechanism 54, the opening and closing operation is performed only on the first door 22. In addition, it is possible to eliminate the trouble of operating two conventional doors separately and sequentially.

  In addition, particularly in this configuration, the interlocking mechanism 54 is provided with a wire connecting the doors 22 and 23, in particular, a cable wire 57, and an urging means for urging the second door 23 in the opening direction, in particular, a torsion. The first door 22 is opened by the urging force of the urging means (the torsion coil spring 58) when the first door 22 is opened. The opening operation force to be applied to the door only needs to be applied to the first door 22, and the operation can be lightened.

  In this case, as shown in FIG. 7, there is an obstacle S such as a hanging cabinet above the installation location of the dishwasher, and the second door 23 that is opened hits the obstacle S, thereby causing the second Even in a situation where the door 23 is prevented from being sufficiently opened, the wire of the interlocking mechanism 54, particularly the wire main body 57a of the cable wire 57, is loosened, so that the opening of the first door 22 is not hindered. Since the first door 22 can be sufficiently opened, it is possible to eliminate restrictions on the installation location.

  In addition, in this case, a tension pulley 63 urged downward by a tension coil spring 62 is provided for the wire of the interlocking mechanism 54, particularly for the wire main body 57a of the cable wire 57, and this is connected to the wire main body 57a. , The wire body 57a is pushed down and tensioned, so that it does not remain loose. Therefore, the wire main body 57a can be prevented from coming off from the pulleys 60 and 61 due to the loosening, and the appearance of the portion of the wire main body 57a exposed to the front outside the main body 21 can be maintained well.

Furthermore, the interlocking mechanism 54 is configured to open the second door 23 to a greater degree than the first door 22, thereby increasing the degree of opening (the opening angle) of the second door 23. Tableware can be easily taken in and out on the 23 side (the upper part in the first basic configuration).
In addition, the main body 21 has an opening 28 on the front surface, the first door 22 and the second door 23 are vertically separated, and the lower first door 22 pivots downward. The upper second door 23 is pivoted upward to be opened in conjunction with this, so that both doors 22 and 23 are overlapped when opened as in a conventional folding type. Therefore, the doors 22 and 23 can be opened without putting a hand between the doors 22 and 23.

In addition, in the present configuration, the tableware basket 32 can be pulled out from the washing chamber 27 and placed on the upper surface of the first door 22 that has been pivoted substantially horizontally downward. Tableware can be easily taken in and out of the main body 21 in a large space in front.
Further, the push button 65, which is a closure holding releasing means for releasing the closed holding of the first door 22, is provided at a position where the user can simultaneously operate with one hand holding the handle 64, thereby improving operability. can do.

  In contrast, FIGS. 8 to 24 show the first to eighth reference examples and the first to third embodiments of the present invention. The description will be omitted, and only different parts will be described.

[First Reference Example]
In the first reference example shown in FIG. 8, the interlocking mechanism 81 is configured by a wire 82 and a torsion coil spring 58 consisting only of a steel cable instead of the interlocking mechanism 54 including the cable wire 57 and the torsion coil spring 58 described above. In addition, pulleys 83 and 84 are added, and the wires 82 are guided by these and the aforementioned pulleys 60 and 61.

  Also in this case, the second door 23 can be opened and closed by interlocking the second door 23 with the opening and closing of the first door 22 by the interlocking mechanism 81, and the obstacle such as a hanging cabinet can be used. Even in a situation where the second door 23 is prevented from sufficiently opening, the first door 22 can be sufficiently opened by loosening the wire 82 of the interlocking mechanism 81.

[Second Reference Example]
In the second reference example shown in FIG. 9, a lever 91 is added to the above-described cable wire 57 and torsion coil spring 58 to form an interlocking mechanism 92. In this interlocking mechanism 92, a lever 91 pivotally supports an intermediate portion below the left and right outer surfaces of the inner box 26 so as to be swingable by a shaft 93. The lower ends of the wire bodies 57a are connected to each other. A pin 94 as an engaging portion is provided at the other end on the front side of the lever 91. On the other hand, the connecting plate 55 of the first door 22 has a notched groove as an engaged portion at the distal end. 95 are provided and these are engaged.

  Therefore, in this case, the operation accompanying the opening and closing of the first door 22 is transmitted from the connection plate 55 to the wire main body 57 a of the cable wire 57 via the engagement structure between the notch groove 95 and the pin 94 and the lever 91. Further, the notch groove 95 can be detached from the pin 94 by being pulled out, that is, the notch groove 95 and the pin 94 can be disengaged (engaged and disengaged), and function as a disengageable connecting means. Thereby, the interlocking mechanism 92 and the first door 22 are connected.

  In this case, since the connecting means for connecting the interlocking mechanism 92 and the first door 22 can be disengaged, after the main body 21 is assembled including the interlocking mechanism 92, the first The door 22 can be connected by the engagement of the connecting means, and the removal and attachment of the first door 22 at the time of repair or the like can be easily performed by detaching and engaging the connecting means.

  In this case, the pin 94 and the notch groove 95 may be provided in the opposite relationship between the lever 91 and the connection plate 55, that is, the pin 94 may be provided in the connection plate 55 and the notch groove 95 may be provided in the lever 91. Further, the detachable connecting means may be provided between the interlocking mechanism 92 and the second door 23 instead of or in addition to the interlocking mechanism 92 and the first door 22. That is, it is only necessary that the connection between at least one of the first door 22 and the second door 23 and the interlocking mechanism 92 is made by a releasable connection means.

[Third Reference Example]
In the third reference example illustrated in FIG. 10, a plurality of, in this case, three wire attachment portions 101, 102, and 103 are provided on the connection plate 56 of the second door 23. The plurality of wire attachment portions 101 to 103 have different distances from the second door 23 in the closing direction, and the distances are sequentially reduced.

  A wire, in particular, an upper end of the wire main body 57a of the cable wire 57 is selectively attached to the wire attachment portions 101 to 103, and the first and second wires are selectively attached to the wire attachment portions 101 to 103. The degree of opening (opening angle) of the second door 23 changes. More specifically, the upper end of the wire main body 57a is replaced in the order of the wire mounting portions 101, 102, and 103 in which the distance in the closing direction from the second door 23 is gradually reduced, so that the second door 23 is replaced. Are gradually reduced.

  In this embodiment, when there is an obstacle S such as the above-mentioned hanging cabinet at the tip end side of the opened second door 23, the degree (angle) at which the obstacle S does not collide with the obstacle S is set, and the second door 23 is set at that degree. Since the opening of 23 can be stopped, usability can be improved.

[Fourth Reference Example]
In the fourth reference shown in FIGS. 11 and 12, the interlocking mechanism 111 is replaced with the interlocking mechanism 54 including the cable wire 57 and the torsion coil spring 58, and a plurality of, in this case, four links 112, 113, It is constituted by a link row composed of 114 and 115.

  Specifically, as shown in FIG. 11, the intermediate portion of the first link 112 is pivotally supported by a shaft 117 on a support member 116 erected below the left and right outer portions of the inner box 26. The front end of the first link 112 is rotatably connected to the distal end of the connection plate 55 of the first door 22 by means of an elongated hole 118 and a pin 119. A lower end of the second link 113 is rotatably connected to a rear other end of the first link 112 by a connecting pin 120, and an upper other end of the second link 113 is connected thereto. In addition, a rear end of the third link 114 is rotatably connected by a connecting pin 121.

  The third link 114 is rotatably supported by a shaft 123 on a support 122 having an intermediate portion fixed to the left and right outer surfaces of the inner box 26. The other end of the third link 114 is located on the front side. The other end of the fourth link 115 is rotatably connected to the second door 23 by a connecting pin 125, and the other end of the fourth link 115 is connected to the second door 23 by a connecting pin 125. Connected as possible.

In this configuration, when the first door 22 is opened, the links 112, 113, 114, and 115 rotate or move as shown by the arrow D in FIG.
When the first door 22 is closed from this state, the links 112, 113, 114, and 115 rotate or move in the opposite directions to the above, respectively, to close the second door 23.
Therefore, even in this case, the second door 23 can be opened and closed by interlocking the second door 23 with the opening and closing of the first door 22 by the interlocking mechanism 111.

  In this case, although not shown in detail, the weight of the second door 23 is made lighter than the weight of the first door 22, thereby opening the first door 22 to the second door 23. The degree to which the operation is performed against the weight is reduced, and the opening operation of the first door 22 can be facilitated. Further, it is possible to prevent the first door 22 from being easily closed by the weight of the second door 23.

[Fifth reference example]
In the fifth reference example shown in FIG. 13, the aforementioned torsion coil spring 58 is provided around a shaft 51 that is the center of rotation of the second door 23 of the fourth reference example, and the second door 23 is mounted. It is urged in the opening direction (arrow A).
By doing so, the degree of performing the opening operation of the first door 22 against the weight of the second door 23 can be further reduced, and the opening operation of the first door 22 can be further facilitated. Further, it is possible to further prevent the first door 22 from being easily closed by the weight of the second door 23.

[Sixth Reference Example]
In the sixth embodiment shown in FIGS. 14 and 15, a toggle spring 132 is mounted between a spring hook 131 provided inside the second door 23 of the fourth embodiment and the door support plate 52. ing. This toggle spring 132 urges the second door 23 in the closing direction on the closed side as shown by an arrow E in FIG. As shown by the arrow F, the second door 23 is urged in the opening direction. Therefore, the toggle spring 132 serves as urging means for urging the second door 23 in both the opening direction and the closing direction. Function.

  In this device, when the first door 22 is opened and closed, the second door 23 is opened and closed by the urging force of the urging means, so that the opening and closing operations applied to the first door 22 are performed. Can be lightened, and the operability can be further improved.

[Seventh Reference Example]
In the seventh reference example shown in FIGS. 16 and 17, the interlocking mechanism 141 is configured by a link row including a plurality of, in this case also, four links 112, 142, 114, and 143.

Specifically, as shown in FIG. 16, the first link 112 and the third link 114 are as described in the fourth reference example.
The second link 142 has a straight backward inclination without being bent like the above-mentioned second link 113, and accordingly, the third link 114 is located rearward from the above. . The lower end of the second link 142 is rotatably connected to the rear other end of the first link 112 by a connection pin 120, and the upper end of the second link 142 is connected to the lower end of the second link 142. Is rotatably connected to a rear end of the third link 114 by a connecting pin 121.

  Further, the fourth link 143 extends longer than the fourth link 115 described above, and the other end on the front side of the third link 114 can be pivoted to the one end on the rear side by the connecting pin 124. And the other end of the fourth link 143 on the front side is rotatably connected to the second door 23 by a connecting pin 125.

With this configuration, when the first door 22 is opened, the links 112, 142, 114, and 143 rotate or move as indicated by the arrow G in FIG.
At this time, the interlocking mechanism 141 increases the degree of opening of the second door 23 with respect to the degree of opening of the first door 22. Specifically, the lower first door 22 is substantially horizontal. The second door 23 is opened obliquely upward (about 120 degrees). Thereby, the tableware can be easily taken in and out on the side of the second door 23 having a large opening degree (opening angle) (this is also the upper part in this embodiment).
Note that when the first door 22 is closed from the above-described state, the links 112, 142, 114, and 143 rotate or move in the opposite directions to the above, respectively, and close the second door 23. .

[Eighth Reference Example]
In the eighth reference example shown in FIGS. 18 and 19, the connection between the first link 112 and the second link 142 in the above-described interlocking mechanism 141 is formed by a vertically extending engagement portion on the first link 112 side. And a pin 152 as an engaged portion provided on the second link 142 side, and transmission between them is performed by an allowance of the length of the long hole 151 with respect to the pin 152, The operation is performed with a time difference, so that the elongated holes 151 and the pins 152 function as time difference transmission means.

  Specifically, in this case, when the first and second doors 22 and 23 are in the closed holding state, the elongated hole 151 positions the pin 152 at the lowest position in the length range. When the first door 22 is opened from this state, the other end of the first link 112 is lowered, and as shown in FIG. 18 and FIG. , But during this time, the operation of the first link 112 is not transmitted to the second link 142.

  Thus, after the pin 152 is positioned at the uppermost part of the elongated hole 151, the operation of the first link 112 is transmitted to the second link 142, and the second link 142 descends. Further, the operation is transmitted to the third link 114 and the fourth link 143, and the second door 23 is opened. Thus, the second door 23 is opened later than the opening of the first door 22.

On the other hand, when the first door 22 is closed from the above state, the other end of the rear side of the first link 112 rises, and the second link 142 also connects the pin 152 to the end of the long hole 151. The second door 23 is allowed to return due to the weight of the second door 23 while being positioned at the upper portion, whereby the second door 23 is closed.
However, when the second door 23 is closed, the second link 142 keeps the pin 152 at the top of the long hole 151, and then until the long hole 151 positions the pin 152 at the bottom. When the other end of the first link 112 rises, the first door 23 closes. Thus, the first door 22 is closed after the second door 23 is closed.

In this embodiment, the order of opening and closing the doors is such that when opened, the first door 22 is first, the second door 23 is rear, and when closed, the second door 23 is first and the first door 22 is rear. Can be done clearly.
In this case, the long hole 151 and the pin 152 are connected to the first link 112 and the second link 142 in a reverse relationship to the above, that is, the long hole 151 is connected to the second link 142 and the pin 152 is connected to the first link. Link 112, or between other links.

[First embodiment]
In the first embodiment of the present invention shown in FIGS. 20 to 22, the hook 67 for holding the first door 22 in the closed state is operated by the handle 64.
Specifically, as shown in FIG. 21, a connecting member 161 is attached to the front side of both ends of the shaft 66 to which the hook 67 is attached, and the connecting member 161 is attached to the bulging portion of the front wall of the first door 22. A hole 162 formed with a margin in the upper and lower portions of the handle 22a is penetrated and protrudes forward, and brackets 64a at both ends of the handle 64 are attached to the protruding portion of the connecting member 161.

  In this configuration, when the user holds the handle 64 and turns it downward as shown in FIG. 22, the hook 67 interlocks with the bracket 64 a at both ends of the handle 64 via the connecting member 161 and the shaft 66, and the tension coil It rotates upward against the urging force of the spring 70. As a result, the hook 67a of the hook 67 is disengaged from the hole 72 of the switch case 71 to release the first door 22 from the closed state.

After that, if the user operates the opening of the first door 22 with the hand holding the handle 64, the first door 22 is opened, and the second door 23 is opened in conjunction with the opening operation.
When the user releases the handle 64, the hook 67, the shaft 66, the connecting member 161, and the handle 64 are returned by the urging force of the extension coil spring 70.
In this case, when opening the first door 22 in the closed and held state, it is only necessary to operate the handle 64, and it is not necessary to operate the above-described push button 65, so that the operability can be improved.

[Second embodiment]
In the second embodiment of the present invention shown in FIG. 23, when the second door 23 is opened on the back surface of the upper second door 23, water droplets adhering to the back surface and flowing down are removed on both left and right sides. A rib 171 is provided as a guide member for guiding in the direction.
Thereby, it is possible to prevent the tableware drawn out after the washing and the drying from being wetted by the water drops dripping from the back surface of the second door 23.

[Third embodiment]
In the third embodiment of the present invention shown in FIG. 24, the back surface of the upper second door 23 is subjected to a hydrophilic treatment 181 such as sandblasting.
In this case, water droplets adhered to the back surface of the second door 23 do not bead and do not flow down when the second door 23 is opened, so that washing and drying can be performed as described above. The tableware that has been pulled out after the completion can be prevented from getting wet with water droplets dripping from the back surface of the second door 23.

In addition, the first door 22 may be located on the upper side instead of the lower side, and the second door 23 may be located on the lower side in all the reference examples and all the embodiments from the above basic configuration. Further, the doors 22 and 23 may be divided not only vertically but also horizontally or in other directions, and either side of each direction may be the first door.
Further, the cleaning mechanism 44 is not limited to the fountain method described above, and may be a mechanism that immerses tableware in water and performs cleaning by a water flow generated.
In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

FIG. 1 is a cutaway side view of the entire dishwasher in an open state, showing a basic configuration of the present invention. Appearance perspective view of the entire dishwasher Vertical side view of the entire dishwasher Broken side view of the entire dishwasher with the door closed Enlarged fracture side view of main parts Enlarged fracture side view of different main parts Broken side view of the entire dishwasher with different doors open FIG. 4 equivalent view showing a first reference example. 2 is a cutaway side view of the entire dishwasher showing a second reference example in an intermediate state of assembly. FIG. 1 equivalent view showing a third reference example. FIG. 4 equivalent view showing a fourth reference example. Figure equivalent to Figure 1 FIG. 5 equivalent view showing a fifth reference example. FIG. 5 corresponding to FIG. 5 showing a sixth reference example. Figure equivalent to Figure 5 with the door open FIG. 4 equivalent view showing a seventh reference example. Figure equivalent to Figure 1 8 is a cutaway side view of the entire dishwasher showing the eighth reference example in the middle of door opening. Enlarged side view of main parts FIG. 2 corresponding to FIG. 2 showing a first embodiment of the present invention. Figure equivalent to Figure 6 Figure equivalent to Figure 6 in the middle of door opening FIG. 4 is a perspective view of the entire dishwasher according to a second embodiment of the present invention in an open state. FIG. 23 corresponding to FIG. 23 showing a third embodiment of the present invention. FIG. 2 equivalent view showing a conventional example A perspective view of the entire dishwasher installed in a kitchen cabinet FIG. 2 equivalent view showing a different conventional example. Side view of the entire dishwasher with the door open FIG. 28 equivalent view showing a further different conventional example.

Explanation of reference numerals

21 is a main body, 22 is a first door, 23 is a second door, 27 is a cleaning chamber, 28 is an opening, 44 is a cleaning mechanism, 64 is a handle, 67 is a hook (holding means), and 70 is a tension coil spring. (Holding means) and 71 indicate a switch case (holding means).

Claims (1)

A main body having a washing room, having an opening for taking in and out the dishes into and out of the washing room, and having a washing mechanism for washing the dishes housed in the washing room;
A door attached to the main body so as to be capable of opening and closing, and closing the opening;
Holding means for holding the door in a closed state;
A handle provided on the door, for opening the door,
The dishwasher according to claim 1, wherein the holding means releases the closed state of the door by operating the handle.

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