JP2005296315A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher having excellent installation property by reducing the opening / closing space of a door body. <P>SOLUTION: The dishwasher comprises: a main body 7; a washing tub 8 provided with a front surface opening part 9; an upper door body 10 provided with a slide groove part 14 and covering the front surface opening part 9 so as to be freely opened and closed; a slide support part 12 for supporting the upper door body 10 movably to the upper space of the main body 7; a first operation regulation part 18 whose one end is rotatably supported by the main body 7; and a second operation regulation part 19 whose one end is connected to the first operation regulation part 18 and other end is connected to the upper door body 10. One end of the slide support part 12 is rotatably supported at the upper part of the outer wall of the washing tub 8 and the slide groove part 14 is freely slidably supported at the other end. The upper door body 10 is opened and closed by operations in which rotation and sliding are combined by the slide support part 12 and the first and second operation regulation parts 18 and 19, a projection length to the front is short in the case that the opening / closing height of the upper door body 10 is the same as before, the height required for opening and closing the upper door body 10 is lowered in the case that the projection length to the front is the same as before, and the installation property of the main body 7 is improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dishwasher that cleans tableware and the like, and particularly relates to a door body opening / closing mechanism.

  A conventional dishwasher of this type will be described with reference to FIG.

  The dishwasher stores an object to be cleaned such as tableware in the washing tub 1 and closes the front opening 2 provided in the washing tub 1 with the upper door body 3 and the lower door body 4, and then a washing pump (not shown). ) And jetting cleaning water, the cleaning and rinsing steps of the object to be cleaned were performed. There are various types of opening and closing forms of the door body that opens and closes the front opening 2, but this dishwasher divides the door body into two parts, an upper door body 3 and a lower door body 4. The space required for opening and closing the body (the space in which the door body moves) is reduced, and the installation is improved so that the dishwasher can be installed in a narrow space.

Of the two door bodies, the lower door body 4 rotates to the front lower side of the front opening 2 with the rotation fulcrum 5 as a fulcrum. On the other hand, the upper door body 3 is rotatably supported by the rotation fulcrum 6 and is opened in the upper space of the main body, so that the height necessary for opening and closing the upper door body 3 can be kept small, and can be installed even in a small height place. At the same time, the protruding length of the upper door 3 forward from the front opening 2 of the upper door 3 in the opened state is made as small as possible so that there is no problem in putting in and out the object to be cleaned (for example, Patent Document 1). reference).
JP 2002-272660 A

  However, in the open / close configuration of the upper door body 3 of the conventional dishwasher, if the shape and size of the main body and the door body are the same, the height required for opening and closing the upper door body 3 and the upper door in the opened state The forward projecting length of the body 3 is in a contradictory relationship. If the opening / closing height is lowered, the projecting length to the front is increased, and conversely, if the projecting length to the front is shortened, the opening / closing height is increased. Had the problem of becoming higher.

  In particular, when the upper door body 3 becomes longer, there is a problem that the upper door body 3 protrudes forward to the extent that it hinders use even if the opening / closing height of the upper door body 3 does not change. .

  The present invention solves the above-mentioned conventional problems. When the size of the door body is substantially the same as the conventional one, when the height required to open and close the door body in the opened state is the same as the conventional one, the door body If the length of the door projecting forward is the same as before, a dishwasher with excellent ease of installation that can reduce the height required to open and close the door body. The purpose is to provide.

  In order to solve the conventional problems, a main body, a cleaning tank having a front opening and provided in the main body, a door having a slide groove and covering the front opening so as to be opened and closed, and the door And a movement support means for opening and closing the door body along a predetermined locus, and one end of the slide support part is rotatable to the upper part of the outer wall of the cleaning tank. And the slide groove is slidably supported at the other end, and the door body is not opened and closed by a simple rotation operation, but is rotated and slid by the slide support portion and the operation restricting means. Since the door is opened and closed by a combined operation, when the door body size is approximately the same as the conventional size, when the door body is opened and the height required to open and close is the same as the conventional size, the door body is moved forward. Projection length can be shortened, and the front of the door body If the protruding length is the same as conventional, it can to reduce the height required for the opening and closing of the door body, the installation of the body is improved. In addition, by providing the slide support portion on the upper part of the outer wall of the cleaning tank, the positional relationship with the upper surface of the main body when the door body moves upward of the main body can be realized with high accuracy.

  The dishwasher of the present invention can reduce the space and height required for opening and closing the door body, improve the installation of the main body, or can greatly open the door body from the opening to a position that does not get in the way. This makes it possible to improve the ease of use such as putting in and out the object to be cleaned. In addition, by providing the slide support part on the upper part of the outer wall of the cleaning tank, the positional relationship with the upper surface of the main body when the door body moves upward can be realized with high accuracy. It is possible to realize a stable door body opening / closing operation without contact with the like.

  According to a first aspect of the present invention, there is provided a main body, a cleaning tank having a front opening and provided in the main body, a door body having a slide groove and covering the front opening so as to be freely opened and closed, and the door body of the main body. A slide support portion that is movably supported in an upper space, and an operation restriction means that opens and closes the door body along a predetermined locus, and rotatably supports one end of the slide support portion on the outer wall of the cleaning tank, The slide groove is slidably supported at the other end, and the door body does not open and close by simple rotation, but is a combination of rotation and slide by the slide support and operation restricting means. Therefore, if the door body size is approximately the same as the conventional size, and the height required for opening and closing the door body is the same as the conventional size in the open state, the length of the forward projection of the door body is set to It can be shortened, and the protrusion length of the door to the front is conventional If identical, it is possible to reduce the height required for the opening and closing of the door body, the installation of the body is improved. In addition, by providing the slide support portion on the upper part of the outer wall of the cleaning tank, the positional relationship with the upper surface of the main body when the door body moves upward of the main body can be realized with high accuracy.

  In the second invention, in particular, the door body of the first invention is composed of an upper door body and a lower door body, and a slide groove is provided in the upper door body, and the door body is divided into two parts in the upper and lower sides. Thereby, compared with the case where a front opening part is opened and closed by one door body, since space required for opening and closing of a door body can be made small, installation property can be improved further.

  In the third invention, in particular, the operation restricting means of the first or second invention is formed of resin. When the door body is moved to the space above the main body, the user mistakenly moves the door body when opening and closing the door body. It is possible to realize a highly safe dishwasher that does not get injured even if it touches the operation control means exposed to the outside.

  In the fourth invention, in particular, on the upper surface of the main body of any one of the first to third inventions, a regulating means for regulating the movement of the door body in the vertically downward direction is provided in the door body opened state. Stable opening and closing operation of the door body without causing the slide body to lock in the slide groove part by locking the door body against the upper surface of the main body when the door body is opened and scratching or when the door body is tilted. Can be realized.

  In the fifth invention, in particular, one end of the slide groove portion is closed by the operation restricting means of any one of the first to fourth inventions, and the operation restricting means prevents the slide support portion from coming off from the slide groove portion. In addition, it is not necessary to add a separate part for preventing the slide support part from coming off, and the number of parts can be reduced and the assembly workability can be improved.

  In the sixth invention, in particular, the operation restricting means according to any one of the first to fifth inventions is provided with an abutting portion that abuts against the slide support portion in the door body opened state, and the operation restriction in the opened state is provided. Since the positional relationship between the means and the slide support is restricted, the opening position of the door body is stabilized.

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

(Embodiment 1)
FIG. 1 is a sectional view of a side wall of the dishwasher according to the first embodiment of the present invention, FIG. 2 is a perspective view of the dishwasher, and FIG. 3 is a main part of the dishwasher when the upper door is opened. It is a perspective view.

  A washing tub 8 is provided inside the dishwasher main body 7 (hereinafter referred to as the main body 7), and the front opening 9 of the washing tub 8 is opened and closed by an upper door body 10 and a lower door body 11 which are door bodies. It is configured as follows. A table basket (not shown) for setting an object to be cleaned is accommodated in the cleaning tank 8. One end of the slide support portion 12 that slidably supports the upper door body 10 is rotatably supported by the first rotation fulcrum 13 on the outer wall of the cleaning tank 8, and the other end has a slide groove portion 14 provided in the upper door body 10. It is slidably supported by two slide engaging portions 15.

  The groove width of the slide groove portion 14 is narrower than the other range only in the vicinity where the slide engagement portion 15 is engaged when the upper door body 10 is closed, and the slide groove portion 14 when the upper door body 10 is closed. The gap between the slide engagement portion 15 and the slide engagement portion 15 is set to the minimum necessary so that both parts will not be stretched when the processing error and the assembly error are taken into account and the opening / closing operation is locked. A sufficient width is secured in the other range of the slide groove portion 14 so as not to affect the sliding of the slide engagement portion 15. In addition, the slide engaging portion 15 is provided with a rotatable roller portion 16 to smoothly slide the slide engaging portion 15 in the slide groove portion 14.

  In addition, as an operation restricting means for opening and closing the upper door body 10 with a unique predetermined trajectory, the first operation restricting portion 18 and the first operation restricting portion 18 that are rotatably connected at the first connecting point 17 to each other. 2, and the other end of the first operation restriction unit 18 is rotatably supported on the outer wall of the cleaning tank 8 by the second rotation fulcrum 20. The end is fixed to a fixing point 21 provided at the lower end of the upper door body 10.

  In addition, the 1st operation control part 18 and the 2nd operation control part 19 are each formed with resin, and the 1st operation control part 18 and the 2nd operation control part 19 enter / exit from the side part of the front surface of the main body 7 to the outside. An operation restricting portion storage port 22 is provided at the portion to be operated. The first operation restricting portion 18 has a substantially V-shape projecting downward in the opened state of the upper door body 10. The first operation restricting portion 18 similarly contacts the operation restricting storage port 22 in the opened state. The 1st rib 23 which touches is provided. The side to which the second operation restricting portion 19 of the slide groove portion 14 provided in the upper door body 10 is fixed is an open portion 14a, and the slide engaging portion 15 of the slide support portion 12 is slid and inserted. It is configured. After the slide engagement portion 15 is inserted into the slide groove portion 14, the second operation restriction portion 19 is fixed to the fixing point 21 so that the opening portion 14 a of the slide groove portion 14 is closed by the second operation restriction portion 19. It has become. As a result, it is not necessary to separately add a component for preventing the slide engagement portion 15 from being detached, and the number of components can be reduced and the assembly workability can be improved. The second operation restricting portion 19 is provided with a contact portion 24 that contacts the slide support portion 12 in the opened state of the upper door body 10.

  The lower door body 11 is fixed to the lower support portion 26 that is rotatably supported by the third rotation fulcrum 25 in the vicinity of the lower end portion of the front opening 9 of the cleaning tank 8. It can be opened to a position where the inner surface is horizontal upward.

  The lower door body 11 is provided with a push button switch 27 and a lock means 28 for fixing the lower door body 11 in a closed state, and interlocking with the push button switch 27, a locking portion 29 provided on the outer wall of the cleaning tank 8. Thus, the locking means 28 can be released. In order to seal the upper door body 10 and the lower door body 11 and the front opening 9 and between the upper door body 10 and the lower door body 11, the front opening 9 and the upper door body 10 are formed of an elastic body. A sealed member 30 is provided.

  Reference numeral 31 denotes an interlocking portion having one end rotatably connected to the first operation restricting portion 18 and the second connecting point 32 and the other end rotatably connected to the lower support portion 26 and the third connecting point 33. The upper door body 10 and the lower door body 11 are configured to open and close in conjunction with each other. Further, the first holding part 34 provided in the interlocking part 31 and the second holding part 35 provided on the outer wall of the cleaning tank 8 are connected by a first spring 36 (tensile coil spring), and the upper door body 10 and the lower door body 11 are connected. Is configured to be elastically biased in the opening direction. A protective member 37 is provided on a portion of the interlocking portion 31 exposed to the outside of the dishwasher body 7.

  The second connection point 32 includes a rotating shaft 18a provided in the first operation restricting portion 18 and a vertically elongated hole 31a provided at one end of the interlocking portion 31, and the rotating shaft 18a and the elongated hole 31a. When the upper door body 10 and the lower door body 11 are closed, the upper door body 10 is in a positional relationship so as to be closed before the lower door body 11. Further, the first operation restricting portion 18 is biased in a direction in which the upper door body 10 is closed by a second spring 38 (torsion coil spring) having one end connected to the interlocking portion 31 and the other end connected to the rotating shaft 18a. ing.

  The upper surface of the main body 7 is provided with a second rib 39 for restricting the movement of the upper door body 10 in the width direction in the opened state, and a restriction means 40 for restricting the movement of the upper door body 10 in the vertical downward direction. In addition, a stopper portion 41 is provided on the side wall of the cleaning tank 8 so as to abut the interlocking portion 31 and maintain the opened state of the lower door body 11.

  Each fulcrum position of the link is an angle formed between the second rotation fulcrum 20 and the fixed point 21 with the first connection point 17 as the center, and the third connection point 33 with the second connection point 32 as the center. Three angles, the angle formed between the second rotation fulcrum 20 and the angle formed between the third rotation fulcrum 25 and the second connection point 32 around the third connection point 33, are the upper door body 10, In the opening / closing operation of the lower door body 11, it is set to be 0 degree or more and 180 degrees or less.

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

  When the push button switch 27 is pressed, the locking means 28 is released from the locking portion 29, and the upper door body 10 and the lower door body 11 are biased toward the open side of the door by the first spring 36, The door body 10 and the lower door body 11 are automatically opened from the closed state to the open state where the interlocking portion 31 contacts the stopper portion 41.

  Details of the opening operation of the upper and lower door bodies 10 and 11 are as follows.

  The opening operation of the lower door body 11 rotates forward and downward around the lower end of the cleaning tank 8 and rotates to a position where the inner surface is horizontal upward.

  One end of the upper door body 10 is rotatably supported by the upper part of the outer wall of the cleaning tank 8, and the other end side is combined with rotation and sliding by a slide support portion 12 that slidably supports the slide groove 14 of the upper door body 10. Move along the trajectory. As a result, the degree of freedom of the movement trajectory is higher than in the case where the support member is simply rotationally supported as in the conventional case of FIG.

  However, with this slide support portion 12 alone, the turning trajectory of the upper door body 10 is not uniquely determined, and the upper door body 10 may move freely and may collide with the upper surface of the main body 7 or the like.

  Therefore, the movement trajectory of the upper door body 10 is uniquely restricted by the first operation restriction unit 18 and the second operation restriction unit 19. Thereby, it becomes possible to move the upper door body 10 to the upper space of the main body 7 along the outline shape of the main body 7, and the installation property required to keep the installation height required for opening and closing the upper door body 10 lower than before. Can provide a good dishwasher. Furthermore, since the slide support portion 12 is provided on the outer wall upper portion of the cleaning tank 8 near the upper surface of the main body 7, the positional relationship between the upper door body 10 and the upper surface of the main body 7 can be realized with high accuracy. A stable door opening / closing operation that does not come into contact with the upper surface, the hanging cabinet, or the like can be realized.

  Moreover, since the protrusion length which protrudes ahead from the front-surface opening part 9 of the upper door body 10 can be made small in the state which the upper door body 10 opened completely, the inside of the washing tank 8 is easy to see, and taking in and out of tableware etc. is also obstructed. It is possible to provide an easy-to-use dishwasher.

  Further, by setting the fulcrum positions of the links so as not to become top dead center and bottom dead center, irreversible operation and locking of the links when the upper door body 10 and the lower door body 11 are opened and closed are prevented. Therefore, stable opening and closing operations of the upper door body 10 and the lower door body 11 can be realized.

  In the opened state of the upper door body 10, the second rib 39 provided on the upper surface of the main body 7 and the restricting means 40 restrict the movement of the upper door body 10 in the width direction and the movement in the vertically downward direction, respectively. The movement of the upper door body 10 in the width direction is restricted by the first rib 23 provided in the first action restricting portion 18 being in contact with the action restricting portion storage port 22. Furthermore, when the contact part 24 provided in the 2nd operation control part 18 contact | abuts with the slide support part 12, the movement to the back of the upper door body 10 is controlled, and the opening position of the upper door body 10 is stabilized. .

  After the upper door body 10 and the lower door body 11 are opened, the tableware basket is pulled out to the lower door body 11 and the object to be cleaned is set. Since the tableware basket is drawn on the inner surface of the lower door body 11, it is possible to prevent the juice and water droplets hanging from the object to be washed out from flowing out of the machine.

  Subsequently, the tableware basket is stored in the washing tank 8, and the user closes the lower door body 11. Since the upper door body 10 and the lower door body 11 are configured to open and close in conjunction with each other by the interlocking portion 31, the upper door body 10 is also closed at the same time. At this time, in conjunction with the closing operation of the lower door body 11, the first operation restricting portion 18 and the second operation restricting portion 19 are stored in the operation restricting portion storage port 22. There is a possibility that the user's consciousness is not suitable for the operation. However, in the present embodiment, since the first operation restricting portion 18 and the second operation restricting portion 19 are made of resin, a part of the user's body or a finger touches them during the operation. But I won't get hurt.

  Further, the slide engaging portion 15 may be squeezed in the slide groove portion 14 by the restriction of the upper door body 10 to be moved vertically downward by the restriction means 40 and the movement restriction of the upper door body 10 by the contact portion 24. Therefore, a smooth door closing operation can be maintained.

  Further, in the vicinity of the closed state of the upper door body 10 and the lower door body 11, the second connection point 32 is constituted by the rotating shaft 18 a and the elongated hole 31 a, and the first operation restriction is performed by the second spring 38. Since the portion 18 is biased in the direction in which the upper door body 10 is closed, the upper door body 10 is surely closed first, and the seal member 30 provided on the upper door body 10 is reliably secured by the lower door body 11. It becomes possible to hold down, and the seal between the upper door body 10 and the lower door body 11 can be reliably performed.

  Further, since the gap between the slide groove portion 14 and the slide engagement portion 15 is set narrow only when the upper door body 10 is closed, the position of the upper door body 10 at the time of closing is stable and the upper door body 10. And the front opening 9 are reliably sealed, and a stable door body opening / closing operation can be performed by smooth sliding of the slide groove portion 14 and the slide engagement portion 15 during opening and closing.

  Furthermore, by using the roller part 16 for the slide engagement part 15, the sliding resistance of the slide groove part 14 and the slide engagement part 15 is further reduced, and a more stable door body opening / closing operation can be realized.

  In the present embodiment, the opening / closing trajectory of the upper door body 10 supports the first movement restriction portion 18 directly on the fixed point 21 of the upper door body 10 without using the second movement restriction portion 19. However, in this case, the operation restricting portion storage port 22 becomes remarkably large.

  However, in the present embodiment, the second operation restricting portion 19 is provided, and the first operation restricting portion 18 is formed in a substantially V shape protruding downward in the opened state of the upper door body 10, When the operation restricting portion storage port 22 can be kept to the minimum necessary, the strength reduction of the gate-type structure on the front of the dishwasher can be minimized, and the case strength of the dishwasher housing is configured with one component. Compared to the above, it is possible to dramatically improve, and the fulcrum positions of the links are not easily displaced, and stable opening / closing operations of the upper door body 10 and the lower door body 11 and reliable sealing performance can be realized. The link mechanisms for opening and closing the upper door body 10 and the lower door body 11 described above are provided on the right and left sides of the cleaning tank 8 and the upper door body 10 and the lower door body 11.

  As described above, the dishwasher according to the present invention is low in space and height required for opening and closing the door body, and is excellent in installation of the main body, and various devices having doors for taking in and out of objects, It can be widely applied to devices.

Side wall part sectional drawing of the dishwasher in Embodiment 1 of this invention Perspective view of the dishwasher Perspective view of the main part when the upper door of the dishwasher is opened Main sectional view of the side wall of a conventional dishwasher

Explanation of symbols

7 Dishwasher body (main unit)
8 Washing tank 9 Front opening (opening)
10 Upper door (door)
DESCRIPTION OF SYMBOLS 11 Lower door body 12 Slide support part 14 Slide groove part 18 1st operation | movement control part (operation control means)
19 2nd operation control part (operation control means)

Claims (6)

A main body, a cleaning tank having a front opening and provided in the main body, a door body having a slide groove and covering the front opening so as to be openable and closable, and the door body being movable to an upper space of the main body A slide support portion for supporting, and an operation restricting means for opening and closing the door body along a predetermined trajectory, wherein one end of the slide support portion is rotatably supported on an upper portion of the outer wall of the cleaning tank, and the slide groove portion at the other end. Dishwasher that slidably supports. The dishwasher according to claim 1, wherein the door body is composed of an upper door body and a lower door body, and a slide groove portion is provided in the upper door body. The dishwasher according to claim 1 or 2, wherein the operation regulating means is made of resin.  The dishwasher of any one of Claims 1-3 which provided the control means which controls the movement to the vertical downward direction of the said door body in the door body open state in the main body upper surface.  The dishwasher according to any one of claims 1 to 4, wherein one end of the slide groove is closed by the operation restricting means. The dishwasher according to any one of claims 1 to 5, wherein the operation restricting means is provided with an abutting portion that abuts against the slide support portion when the door is open.

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