JP2007282756A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a stable operation of opening or closing door bodies along with an accurate sealing with a limited force. <P>SOLUTION: The door bodies 6 and 7 covering a front opening part 5 of a washing tank 2 so as to open or close freely are operated vertically to a seal member 8 almost being closed only with respective rotation mechanisms of first and second operation regulating parts 13 and 14, thereby achieving an accurate sealing with a limited force. This can be achieved only by the combination of the rotation mechanisms, thereby achieving the stable operation of the door bodies. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dishwasher for cleaning dishes and the like, and more particularly to a door opening / closing mechanism.

  This type of conventional dishwasher is configured as shown in FIGS. 10 to 12 (see, for example, Patent Document 1).

  Hereinafter, the configuration will be described. The dishwasher accommodates an object to be cleaned such as tableware 101 in the cleaning tank 102, and the front opening 103 provided in the cleaning tank 102 is closed by the door body 104, and then the cleaning pump 105 is operated to supply cleaning water. By spraying, the cleaning and rinsing steps of the object to be cleaned are performed. A seal member 106 is provided around the front opening 103 in order to prevent water leakage from between the front opening 103 and the door body 104. The door body 104 is rotatably supported by a rotation fulcrum 107, and is opened in the space above the main body 108, so that the height necessary for opening and closing the door body 104 can be kept small, and can be installed even in a small height place. At the same time, the protruding length of the door body 104 forward from the front opening 103 in the opened state is made as small as possible so that there is no hindrance to putting in and out the object to be cleaned.

Another dishwasher has been proposed as shown in FIG. In this structure, the support means 110 that supports the door body 109, the rotation fulcrum 113 that moves the slide part 112 provided on the cleaning tank side wall 111, and the guide part that moves the guide groove 114 provided on the cleaning tank side wall 111 are provided. 115, and as shown in the figure, the door body 109 is moved in a direction away from the front opening 116 and then opened in the space above the main body 117, so that the installation similar to the above-described conventional example is performed. Realizes sexuality and usability. Further, since this operates in a substantially vertical direction with respect to the front opening 116 in the vicinity of the closed state of the door body 109, a seal provided around the front opening 116 at the final stage of the closing operation of the door 109. A reliable seal can be realized with a small force without rubbing against the member 118.
JP-A-2004-790

  However, in the door body opening / closing configuration of the dishwasher shown in FIGS. 10 to 12, since the door body and the seal member operate while rubbing in the vicinity of the closed state of the door body, a large force is required for the opening / closing operation. Had the problem of being unstable.

  Further, in the door body opening / closing configuration of the dishwasher of FIG. 13, since the support means slides on the side wall of the washing tub, the opening / closing operation is smoother due to the influence of frictional resistance than the door body opening / closing mechanism including only the rotation mechanism. Since the movement is restricted by the complicated shape of the slide part and guide groove, it is easy to be affected by machining errors, and it is difficult to move the door body with a predetermined path with high accuracy. Had the problem of being.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and aims to realize a reliable seal with a small force and to realize a stable door opening / closing operation.

  In order to solve the above-described conventional problems, a dishwasher according to the present invention includes a main body, a cleaning tank provided in the main body, an opening provided in the front surface of the cleaning tank, and a door body that freely opens and closes the opening. A seal member provided around the opening, a door body seal receiver provided on the door body that is in pressure contact with the seal member in the closed state of the door body, and a door body support member that supports the door body, A first operation restricting portion having one end rotatably connected to the door support member at a first connecting point and the other end rotatably supported by a first support shaft of the cleaning tank side wall; A second operation restricting portion that is rotatably connected to the door support member at a second connection point, and the other end of which is rotatably supported by a second support shaft of the cleaning tank side wall, In the closed state of the door body, the straight line connecting the first connection point and the first support shaft, and the second The connecting point and the straight line connecting the second support shaft are configured to be substantially parallel to the straight line connecting the upper end and the lower end of the door body seal receiver, and the door body is in the vicinity of the closed state. Because it operates in a substantially vertical direction with respect to the front opening, the door body seal receiver and the sealing member are pressed vertically without rubbing at the final stage of the closing operation of the door body. Can be realized. In addition, the movement of the door body in the vertical direction is realized by only a combination of rotating mechanisms, not a mechanism that is easily affected by frictional resistance and shape processing errors such as a slide mechanism. Open / close operation can be realized.

  As described above, according to the present invention, a reliable sealing with a small force and a stable door opening / closing operation can be realized, and a dishwasher with high quality and good operability can be realized.

  1st invention is a main body, the washing tank provided in the said main body, the opening part provided in the said washing tank front surface, the door body which covers the said opening part so that opening and closing is possible, and the sealing member provided around the said opening part A door body seal receiver provided on the door body that is in pressure contact with the seal member in the closed state of the door body, a door body support member that supports the door body, and one end of the door body support member A first operation restricting portion that is rotatably connected at a connecting point, and the other end is rotatably supported on a first support shaft of the cleaning tank side wall, and one end is a second connection to the door body support member A second operation restricting portion that is rotatably connected at a point and whose other end is rotatably supported by a second support shaft of the side wall of the cleaning tank, and in the closed state of the door body, A straight line connecting the first connection point and the first support shaft, and a straight line connecting the second connection point and the second support shaft. The door body seal receiver is configured to be substantially parallel to a straight line connecting the upper end and the lower end of the door body, and the door body operates in a direction substantially perpendicular to the front opening in the vicinity of the closed state. In the final stage of the closing operation, the door seal receiver and the seal member are not rubbed and pressed vertically, so that a reliable seal can be realized with a small force. In addition, the movement of the door body in the vertical direction is realized by only a combination of rotating mechanisms, not a mechanism that is easily affected by frictional resistance and shape processing errors such as a slide mechanism. Open / close operation can be realized.

  In the second invention, in particular, the first connection point and the first support shaft of the first invention are provided so as to be positioned closer to the opening side than the second connection point and the second support shaft, respectively. The support shaft and the second support shaft are provided above the first connection point and the second connection point, respectively, and the length of the straight line connecting the first connection point and the first support shaft is The door body is configured to be shorter than the length of the straight line connecting the second connection point and the second support shaft, and the door body is opened in a substantially vertical direction from the front opening in the vicinity of the closed state. Since it operates to open in the upper space of the main body from the middle to the opening, it is possible to keep the height required for opening and closing small.

  The third aspect of the invention is particularly the upper part of the main body of the second aspect of the invention having a substantially arc shape from the front to the center of the upper part, the opening extending from the front of the main part to the vicinity of the central part of the upper part of the main body, Is substantially arc-shaped like the main body shape, the trajectory through which the upper portion of the door passes can be kept low, and the height required for opening and closing can be further reduced.

  In the fourth aspect of the invention, in particular, the upper shape of the main body of the second invention is configured to be a substantially arc shape that bulges upward from the front surface to the back surface, and the opening is formed in the arc shape of the upper portion of the main body from the front surface of the main body. The upper part of the door body is configured to have a substantially arc shape similar to the main body shape, and the door body can be opened along the arc shape of the upper part of the main body. The arc shape can be aligned with the arc shape on the back of the main body, and the height required for opening and closing can be minimized.

  In the fifth invention, in particular, the door body of the second to fourth inventions is pivotally supported by the upper door body opened to the upper part of the main body by the first operation restricting portion and the second operation restricting portion, and the lower end of the opening portion. Consists of a lower door body that opens downward, making it possible to reduce the protruding length of the upper door body forward from the front opening of the upper door body in an opened state, improving usability such as taking in and out the object to be cleaned. It is possible.

  In the sixth invention, in particular, the door body according to the fourth invention is pivotally supported by the upper door body opened to the upper part of the main body by the first operation restricting portion and the second operation restricting portion, and downwardly supported by the lower end of the opening portion. It is composed of a lower door body that is opened, and an engagement portion between the upper door body and the lower door body is provided at the end of the substantially arc shape. Further, it is possible to eliminate the forward protrusion from the front opening, and it is possible to improve the usability such as putting in / out the object to be cleaned.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a sectional view of a side wall when the door of the dishwasher according to the first embodiment of the present invention is closed, FIG. 2 is a sectional view of a side of the dishwasher when the door is opened, and FIG. FIG. 4 is a perspective view of the dishwasher when the door is closed, FIG. 4 is a perspective view of the dishwasher when the door is opened, FIG. 5 is an operation explanatory diagram of the fourth connection point of the dishwasher, and FIG. FIG. 7 is an operation explanatory diagram of the incomplete closing prevention means of the dishwasher.

  When viewed from the side of the main body 1 of the dishwasher, the upper outer shape is a substantially arc shape that bulges upward from the front surface 1a to the back surface 1b, and the front surface shape is a substantially planar shape. In the main body 1, a cleaning tank 2 formed in a substantially arc shape that bulges upward from the upper surface to the back surface is provided so that the upper shape is along the inner surface of the arc-shaped portion at the upper part of the main body 1. A table basket 4 for setting an object to be cleaned such as the tableware 3 is housed inside.

  The cleaning tank 2 is provided with an opening 5 that opens from the front surface to the upper surface, and is configured to be opened and closed by an upper door body 6 and a lower door body 7 respectively. The upper end position of the opening 5 is provided near the top of the arc shape. Further, a seal member 8 is attached around the opening 5, and an upper door body seal receiver 6 a provided on the upper door body 6 and a lower door body seal receiver 7 a provided on the lower door body 7, A seal of the opening 5 is configured. A seal member 9 between door bodies is attached to the upper door body 6, and a seal between the upper and lower door bodies is constituted by an inter-door body seal receiver 7 b provided on the lower door body 7.

  The vertical cross-sectional shape of the upper door body 6 is formed in a substantially arc shape that bulges outward like the upper surface shape of the main body 1, and the lower end of the upper door body 6 is a substantially arc-shaped portion of the outline of the main body 1. Near the lower end 1c, the upper end is a substantially arc-shaped upper end 1d (near the top). Further, the upper door body 6 is provided with a window 10 for visually recognizing the inside of the cleaning tank 2.

  The upper door body 6 is fixed by an upper door support member 11 and a fixing point 12. One end of the upper door support member 11 is rotatably connected to a first operation restricting portion 13 rotatably supported by a first support shaft 13a provided on the side wall of the cleaning tank 2 and a first connection point 13b. Moreover, one end is rotatably connected to a second operation restricting portion 14 rotatably supported by a second support shaft 14a provided on the side wall of the cleaning tank 2 and a second connection point 14b. In the closed state of the door body, the first support shaft 13a and the second support shaft 14a are positioned above the first connection point 13b and the second connection point 14b, respectively. 13a and the 1st connection point 13b are provided in the opening part 5 side from the 2nd support shaft 14a and the 2nd connection point 14b, respectively.

  Further, in the closed state of the door body, a straight line 13c (one-dot chain line) connecting the first support shaft 13a and the first connection point 13b, and a straight line connecting the second support shaft 14a and the second connection point 14b. 14c (one-dot chain line) is configured to be substantially parallel to a straight line 6c (one-dot chain line) connecting the upper and lower ends of the upper door seal receiver 6a. The length of the straight line 13c connecting the first support shaft 13a and the first connection point 13b is shorter than the length of the straight line 14c connecting the second support shaft 14a and the second connection point 14b. Has been.

  The lower door body 7 has a substantially planar shape similar to the front shape of the main body 1, and is a lower door support member rotatably supported by a third support shaft 15 a in the vicinity of the lower end portion of the opening 5 of the cleaning tank 2. 15 is fixed. The side wall of the cleaning tank 2 is provided with a first stopper portion 16 that comes into contact with the lower door support member 15 when the door body is opened, and the inner surface of the lower door body 7 faces upward and downward from the opening 5. It is configured to open up to a horizontal position. The lower door body 7 is provided with a push button switch 17 and a locking means 19 that is engaged with an engaging portion 18 provided on the side wall of the cleaning tank 2 to fix the lower door body 7 with the opening 5 closed. The locking means 19 can be released from the locking portion 18 in conjunction with the push button switch 17.

  Further, an interlocking portion 23 having one end rotatably connected to the lower door support member 15 at the third connection point 21 and the other end rotatably connected to the upper door support member 11 at the fourth connection point 22 The upper door body 6 and the lower door body 7 are configured to open and close in conjunction. The fourth connection point 22 includes a long hole portion 22 a provided in the interlocking portion 23 and a cylindrical connection shaft 22 b provided in the upper door support member 11, and is connected to the upper door body 6 in the closed state. The lower door body 7 has a play in the opening direction.

  The interlocking portion 23 is provided with a guide projection 24, and the upper door support member 11 is provided with a guide groove 25, and is configured to engage from the closed state to the open state of the door body. Further, the guide groove 25 has a predetermined operation region of the guide projection 24 so that the fourth connecting point 22 has a play when the upper door body 6 is in a closed state. The shape of the guide projection 24 is regulated so as to eliminate play at the connecting point 22.

  The first holding part 26 provided on the upper door support member 11 and the second holding part 27 provided on the interlocking part 23 are connected by a first spring 28 (tensile coil spring), and the upper body is closed in the closed state. The lower door body 7 is configured to elastically bias the door body 6 in the opening direction. Further, from the middle of opening of the door body to the opened state, the first spring 28 elastically biases the interlocking portion 23 in the direction of opening the upper and lower door bodies 6 and 7.

  Further, the third holding part 29 provided in the second operation restricting part 14 and the fourth holding part 30 provided on the side wall of the cleaning tank 2 are connected by the second spring 31 (tensile coil spring), and the closed state is established. In the middle of opening (the lower door body rotates about 45 ° from the closed state), the second operation restricting portion 14 is elastically biased in the direction in which the upper door body 6 opens, and from the middle of opening to the opened state, The second operation restricting portion 14 is elastically biased in the direction in which the upper door body 6 is closed. In the closed state of the upper door body 6, the moment in the opening direction of the upper door body 6 due to the urging force of the second spring 31 is set to be smaller than the moment in the closing direction due to the weight of the upper door body 6. .

  Further, the fifth holding part 32 provided in the interlocking part 23 and the sixth holding part 33 provided on the side wall of the cleaning tank 2 are connected by a third spring 34 (tensile coil spring), and are opened from the closed state (closed). When the lower door body is rotated by about 70 ° from the completed state, the interlocking portion 23 is elastically biased in the direction in which the upper and lower door bodies 6 and 7 are opened, and the upper and lower doors are opened from the middle to the opened state. The interlocking portion 23 is elastically biased in the direction in which the bodies 6 and 7 are closed.

  The speed reduction member 36 rotatably supported by the fourth support shaft 35 provided on the side wall of the cleaning tank 2 is configured to come into contact with the sliding portion 37 provided on the upper door support member 11 from the middle of opening the door body to opening. Has been. The seventh holding portion 38 provided on the speed reduction member 36 and the eighth holding portion 39 provided on the side wall of the cleaning tank 2 are connected by a fourth spring 40 (tensile coil spring), and the speed reduction member 36 and the sliding portion 37 are connected. After the contact, the distance between the seventh holding portion 38 and the eighth holding portion 39 increases as the door body opens. Further, the second stopper portion 41 provided on the side wall of the cleaning tank 2 is configured so that the distance between the seventh holding portion 38 and the eighth holding portion 39 is not smaller than a predetermined length. The contact point at which the speed reduction member 36 and the sliding portion 37 abut is configured to approach the fourth support shaft 35 as the door body opens.

  The upper door support member 11 is provided with a first upper door protrusion 42 protruding downward from the lower end of the upper door body 6. In addition, a second upper door protrusion 43 that is larger in height than the first upper door protrusion 42 and protrudes forward is provided on the upper portion of the first upper door protrusion 42. The lower door body 7 is provided with a lower door projection 44, and when the upper and lower door bodies 6 and 7 are closed at a predetermined closed position, the lower door projection 44 serves as a second upper door. It is configured to be positioned above the protrusion 43.

  The operation of the dishwasher configured as described above will be described.

  By pushing the push button switch 17, the locking means 19 is released from the locking portion 18, and the interlocking portion 23 biased by the first spring 28 and the third spring 34 operates in the door body opening direction. . Further, the first spring 28 urges the upper door body 6 in the direction of opening the lower door body 7 and the fourth connecting point 22 has a play. Initially, only the lower door body 7 is opened, and the upper door body 6 remains in the closed position.

  When the long hole portion 22a moves completely in the play area of the cylindrical connecting shaft 22b, the long hole portion 22a and the cylindrical connecting shaft 22b are connected, and the upper door support member 11 is biased by the interlocking portion 23 in the door opening direction. The power of is transmitted. In addition, the urging force of the second spring 31 to the second movement restricting portion 14 in the door opening direction overcomes the moment in the door closing direction due to the weight of the upper door 6, The door bodies 6 and 7 are automatically opened from the closed state to the open state where the lower door support member 15 contacts the first stopper portion 16. At this time, the lower door body 7 is rotated to a position where the inner surface is upward and horizontal.

  Since the upper door body 6 operates in the normal direction of the arc with respect to the substantially arc-shaped central portion of the opening 5 in the initial stage of opening, the upper door body 6 can be opened without rubbing against the seal member 8. Moreover, since the rotation angle of the 1st operation control part 13 becomes larger than the rotation angle of the 2nd operation control part 14 from the middle of opening to opening, the upper door body 6 opens so that it may wrap around to the main body 1 upper part. . Since the upper shape of the main body 1 and the upper door body 6 have a substantially arc shape, the main body 1 necessary for opening the upper door body 6 by opening the upper door body 6 along the substantially arc shape. It is possible to minimize the upper space.

  Further, the outer shape line of the upper door body 6 and the outer shape line of the main body 1 behind the upper end of the opening 5 have substantially the same arc, and project forward from the opening 5 of the opened upper door body 6. Further, it is possible to eliminate the rearward protrusion from the back surface of the main body 1. Thereby, it is possible to satisfy both the ease of use in which the upper door body 6 does not get in the way when the object to be cleaned is taken in and out and the ease of installation that does not require an installation space behind the main body 1.

  As the door body opens, the moment in the opening direction due to the weight of the lower door body 7 increases and the moment in the door body closing direction due to the weight of the upper door body 6 decreases, so the upper and lower door bodies 6, 7 The moment of the door interlocking mechanism as a whole due to its own weight works in the closing direction of the door when the door is closed, but as the door opens, the moment in the closing direction decreases, As the working direction reverses and thereafter opens, the moment in the door opening direction increases. Therefore, from the middle of opening to the opening, the second spring 31 biases the second operation restricting portion 14 in the door closing direction, and the third spring 34 biases the interlocking portion 23 in the door closing direction. The door body opening speed is suppressed, and the impact when the door body is fully opened is mitigated.

  However, the second spring 31 and the third spring 34 need to be set so that the upper and lower door bodies 6 and 7 are automatically opened, and the impact relaxation when the door body is fully opened is compatible. difficult. In addition, in order to ensure that the door body is fully opened and that the shock when the door body is fully opened is reliably mitigated, the door body opening speed is rapidly suppressed near the door body fully opened state, and the impact when fully opened is mitigated. In the deceleration by the second spring 31 and the third spring 34, since the force gradually changes proportionally, it is difficult to rapidly suppress the door opening speed.

  Therefore, the urging force in the door closing direction is applied to the upper door support member 11 by the speed reduction member 36 in the middle of opening the door body. The deceleration member 36 is completely independent of the automatic opening operation of the interlocking mechanism by the upper / lower door body support members 11 and 15 and the interlocking portion 23, so that the degree of freedom of setting is high, and the interlocking mechanism as a whole is opened. The moment in the door body closing direction is applied to the upper door support member 11 from the middle of opening the door body, and the urging force of the fourth spring 40 to the speed reduction member 36 causes the door body to open. As the door body opens, the contact point between the speed reduction member 36 and the sliding portion 37 approaches the fourth support shaft 35. Therefore, a large force is exerted in the door closing direction in the vicinity of the door opening state. It is possible to add to the upper door support member 11, and it is possible to more effectively realize suppression of the opening speed and relaxation of the impact when the door body is fully opened.

  After the upper and lower door bodies 6 and 7 are fully opened, the tableware basket 4 is pulled out on the inner surface of the lower door body 7 and the object to be cleaned is set. Since the tableware basket 4 is pulled out onto the inner surface of the lower door body 7, it is possible to prevent the juice and water droplets dripping from the object to be cleaned such as the tableware 3 from flowing out of the machine.

  Then, the tableware basket 4 is accommodated in the washing tank 2 and the lower door body 7 is closed. Since the upper door body 6 and the lower door body 7 are configured to open and close in conjunction, the upper door body 6 is also closed simultaneously. Since the biasing force in the door closing direction to the upper door support member 11 of the deceleration member 36 is increased in the vicinity of the fully opened state, the activation force for closing the lower door body 7 may be small, and the operation feeling is good.

  During the closing of the door body, the rattling of the upper door body 6 due to the play of the fourth connection point 22 is regulated by the guide protrusion 24 and the guide groove 25, so that the upper door body 6 The position is stable and stable. As a result, in the closing operation, the predetermined operation that the upper door body 6 reaches the closed position prior to the lower door body 7 can be realized with certainty. Therefore, the inter-door seal member 9 attached to the upper door body 6 Sealing can be ensured by a door-to-door seal receiver 7b provided on the lower door body 7.

  Immediately before the door is closed, the upper door 6 is already closed, so the moment in the closing direction by the upper door 6 is zero, and the moment acting on the interlocking mechanism of the door is in the opening direction. It grows rapidly. Since the moment in the opening direction is a force necessary to close the lower door body 7, it is desirable that the moment is as small as possible. In order to reduce the moment in the closing direction of the upper door body 6, the upper door body 6 may be lightened, but the upper door body 6 has a tempered glass window 10 in order to improve the internal visibility. In addition, the upper door body 6 is limited in terms of weight reduction in configuration. Therefore, in order to reduce the influence of the weight of the upper door body 6, the second spring 31 is provided in the second operation restricting portion 14 so as to cancel the moment due to the weight of the upper door body 6. The same effect as the weight reduction of the body 6 is realized.

  When the tableware 3 or the like is stretched on the upper door body 6 and exists above the predetermined closed position, the lower door protrusion 44 comes into contact with the first upper door protrusion 42 as shown in FIG. 7B. The lower door body 7 cannot be closed to the closed position. As a result, the locking means 19 cannot be locked to the locking portion 18 and cannot be operated. Further, if the lower door body 7 is to be forcibly closed in this state, the upper door body 6 is pulled downward, but the upper end of the lower door projection 44 is set to the lower end of the second upper door projection 43. As a result, the operation of the upper door body 6 can be completely restrained, and the lower door body 7 cannot be reliably closed. Thereby, it is possible to prevent the operation in a state where the seal with the upper door body 6 lifted up is incomplete.

  The opening / closing mechanisms of the upper and lower door bodies 6 and 7 described above are provided on both the left and right sides of the cleaning tank 2 and the upper and lower door bodies 6 and 7.

(Embodiment 2)
FIG. 8 is a perspective view when the door of the dishwasher according to the second embodiment is closed, and FIG. 9 is a side view of the dishwasher installed in the kitchen. In the present embodiment, the lower end of the upper door body 45 is located below the substantially arc-shaped portion of the outline of the main body 47, and the upper door body 45 is configured by a substantially arc shape and a substantially planar shape. Other configurations are the same as those of the first embodiment, and detailed description thereof is omitted.

  The dishwasher is generally installed on the side of the sink 46, and includes a side installation in which the front surface of the main body 47 is installed facing the sink 46 side, and a front installation in which the side surface of the main body 47 is installed facing the sink 46 side. It is divided into. In the dishwasher installed on the side surface with the door body opened, the lower door body 48 protrudes toward the water tap 49 in the sink 46, and in the dishwasher installed in the front surface, the lower door body 48 is above the kitchen counter 50. Projects to cover the cooking space.

  In recent years, a dishwasher is desired to be a large-capacity type capable of washing large dishes and cooking utensils, etc. In order to realize a large capacity with a limited installation area on the kitchen counter 50 The dishwasher needed to be taller. However, when the lower end of the upper door body 45 is provided in the vicinity of the lower end portion 51 of the substantially arc-shaped portion of the outline of the main body 47, the lower door body 48 becomes long. It has a problem of interfering with the food or eliminating the cooking space.

  According to the configuration of the present invention, in a tall and large-capacity type dishwasher, the lower door body is provided by dividing the upper door body 45 and the lower door body 48 below the substantially arc-shaped portion of the outer shell of the main body 47. 48 can be shortened, and since the protrusion of the lower door body 48 forward when the door body is opened can be shortened, the above-described problems can be solved. Further, since the upper door body 45 becomes longer, the upper door body 45 protrudes forward from the opening 52 when the door is opened, but the dishwasher is tall and the upper end position of the opening 52 is upward. Since it is located, the upper door body 45 does not interfere with the user's access to the interior.

  As described above, the dishwasher according to the present invention realizes a reliable seal with a small force and realizes a stable opening / closing operation of the door body, and uses a plurality of door bodies as well as the dishwasher. It can be applied to various devices such as washing machines and washing machines.

Side wall sectional drawing at the time of door body closing of the dishwasher in the 1st Embodiment of this invention Side wall sectional view of the dishwasher door opening Perspective view when the door of the dishwasher is closed Perspective view of the dishwasher door opening (A) Operation explanatory diagram of the fourth connection point when the door of the dishwasher is closed (b) Operation explanatory diagram of the fourth connection point at the initial opening of the door of the dishwasher (A) Operational explanatory diagram of the speed reduction mechanism when the door body of the dishwasher is opened (b) Operational explanatory diagram of the speed reduction mechanism during the door body opening of the dishwasher (A) Operation explanatory diagram of the incomplete closing prevention means when the upper door body of the dishwasher is normally closed (b) Operation description of the incomplete closing prevention means when the upper door body of the dishwasher is closed abnormally Figure The perspective view at the time of the door body closing of the dishwasher in the 2nd Embodiment of this invention Side view of the dishwasher installed in the kitchen Side view of an example of a conventional dishwasher Cross section of the dishwasher Schematic of the seal part of the dishwasher Side sectional view of another example of a conventional dishwasher

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Cleaning tank 5 Opening part 6 Upper door body (door body)
6a Upper door seal holder (door seal holder)
7 Lower door (door)
7a Lower door seal holder (door seal holder)
8 Seal member 11 Upper door support member (door body support member)
13 1st operation control part 13a 1st support shaft 13b 1st connection point 14 2nd operation control part 14a 2nd support shaft 14b 2nd connection point

Claims (6)

A main body, a cleaning tank provided in the main body, an opening provided on the front surface of the cleaning tank, a door body that covers the opening in an openable and closable manner, a seal member provided around the opening, A door body seal receiver provided on the door body that is in pressure contact with the seal member in the closed state, a door body support member that supports the door body, and one end of the door body support member that is rotatable at a first connection point to the door body support member A first operation restricting portion connected to the first support shaft of the cleaning tank side wall and rotatably supported at one end, and one end rotatably connected to the door support member at a second connection point; A second operation restricting portion rotatably supported on the second support shaft of the cleaning tank side wall, and in the closed state of the door body, the first connection point and the A straight line connecting the first support shaft and a straight line connecting the second connection point and the second support shaft are the door body seat. Connecting the upper and lower ends of the receiving line and the dishwasher configured so as to be substantially parallel. The first connection point and the first support shaft are provided so as to be positioned closer to the opening side than the second connection point and the second support shaft, respectively, and the first support shaft and the second support shaft are respectively connected to the first connection shaft and the first support shaft. The length of the straight line connecting the first connection point and the first support shaft is higher than the first connection point and the second connection point, and the length of the straight line connecting the first connection point and the first support shaft is the second support point and the second support point. The dishwasher of Claim 1 comprised so that it might become shorter than the length of the straight line which connected the axis | shaft. The front upper portion of the main body has a substantially arc shape from the front surface to the center of the upper portion, the opening extends from the front surface of the main body to the vicinity of the central portion of the upper portion of the main body, and the upper shape of the door body has an approximately arc shape similar to the main body shape. 2. The dishwasher according to 2. The upper shape of the main body is configured to be a substantially arc shape that bulges upward from the front surface to the back surface, the opening is from the front surface of the main body to the vicinity of the top of the arc shape of the upper portion of the main body, and the upper shape of the door body is the main body The dishwasher of Claim 2 comprised so that it might become a substantially circular arc shape similarly to a shape. The door body is comprised by the upper door body opened to the upper part of a main body by the 1st motion control part and the 2nd motion control part, and the lower door body pivotally supported by the lower end of an opening part and open | released below. 5. The dishwasher according to any one of 4 above. The door body is composed of an upper door body opened to the upper part of the main body by the first operation restricting portion and the second operation restricting portion, and a lower door body pivoted at the lower end of the opening portion and opened downward. The dishwasher of Claim 4 which provided the engaging part of the lower door body and the substantially arc-shaped edge part.

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