JP4893785B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for washing dishes and the like by jetting washing water.

  Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.

  As shown in FIG. 6, the door body 101 is attached to the lower part of the dishwasher body 103 so as to be openable and closable around the door shaft 102, covers the front opening of the dishwasher body 103, and has a door body at the upper part. A grip portion 104 for grasping when opening and closing 101 and a lock means 106 released by a switch 105 are provided, and can be fixed in a closed state.

  Further, the lock means 106 is linked with the input function of the operation operation of the dishwasher, and is configured not to operate when the door body 101 is not completely closed, even when the door body 101 is opened during operation. Consideration is given so that washing water does not spout outside the dishwasher. The dishwasher main body 103 is provided with a washing tub 107 inside, and the washing tub 107 has a dish basket 108 disposed therein.

  Since the basic operation of the dishwasher is generally well known, a brief description will be given below. The user releases the locking means 106 by the switch 105 and then holds the handle 104 and holds the door body 101. Is opened, and dirty dishes are set in the dish basket 108 installed in the washing tub 107 in the dishwasher main body 103.

  Next, when the door body 101 is closed and the operation is started by operating the locking means 106, the cleaning water is heated from the cleaning nozzle 110 toward the tableware 111 while the cleaning water is heated by the heater 109 disposed at the bottom of the cleaning tank 107. A cleaning process is performed to spray and clean the dishes 110. Then, after rinsing the tableware 110, the drying process is performed to finish the operation.

  However, in the dishwasher with such a configuration, the space in front of the dishwasher is blocked with the door body 101 open, so that it cannot be installed sideways on the sink and is installed forward. Has a problem that the open door body 101 obstructs traffic, and it is difficult to set the table because it is difficult to set the dishwasher because the distance is long when the dishwasher is set in the dishwasher.

  As a structure for improving the said subject, there exists what was described in FIG. 7 as another dishwasher (for example, refer patent document 1). As shown in FIG. 7, this is a structure that opens and closes the opening 116 of the washing tank 115 by rotating the two door bodies 113, 114 provided in the dishwasher main body 112 in the vertical direction. The doors 113 and 114 are connected by a link 117. For this reason, if the handle 118 of the door body 114 is held and opened, the other door body 113 is also opened at the same time. In this way, by dividing the door body, it is possible to reduce the space for closing the front of the dishwasher when the door body is opened as compared with the single door configuration shown in FIG.

  Here, the seal configuration of the dishwasher shown in FIG. 7 will be described.

A side seal member that seals the side portions of the lower door body 114 and the upper door body 113 and the side portions of the cleaning tank 115 in a watertight manner is attached to the side of the opening 116 of the cleaning tank 115. Also, the opening 1
An upper seal member for watertightly sealing the upper portion of the upper door body 113 and the upper portion of the cleaning tank 115 is attached to the upper portion of 16.

  On the side portions of the lower door body 114 and the upper door body 113, pressing portions for pressing the side seal members are provided. Moreover, the press part which presses an upper seal member is provided in the upper part of the upper door body.

  Since the lower door body rotates around the lower fixed pivot 119, the lower door body 114 side pressing portion presses the side seal member in a substantially horizontal direction in the closed state.

  In the door closed state, the side pressing portion of the lower door body 114 and the side pressing portion of the upper door body 113 are substantially on the same plane. Therefore, the side pressing portion of the upper door body 113 is also configured to press the side sealing member in a substantially horizontal direction.

  The upper door body 113 rotates around the upper fixed pivot 120. Therefore, the upper pressing portion of the upper door body 113 is configured to press the upper seal member in a substantially vertical direction on the trajectory of rotation.

  The basic operation of this dishwasher is the same as that of the above-described dishwasher.

JP 2002-272661 A

  As described above, in the conventional configuration as shown in FIG. 7, the upper portion and the side portion of the opening of the cleaning tank are different in the pressing direction (sealing direction) by the pressing portion of the upper door body against the sealing member. The member and the side seal member use different parts. Therefore, since the sealing surface is interrupted at the joint between the upper seal member and the side seal member, there is a problem that water and steam are likely to leak from the portion.

  Further, in the case where a step is generated in the connection portion between the upper pressing portion and the side pressing portion of the upper door body and it is not smooth, there is a problem that the seal of the portion becomes weak and water and steam are likely to leak. .

The present invention solves the above conventional problems,
A dishwashing machine that injects washing water to wash an object to be cleaned, and opens and closes a washing tank provided in the dishwasher body and an opening of the washing tank, and a rotation axis provided in the washing tank. The upper door body and the lower door body that are pivoted upward and downward, the interlocking means for interlocking the upper door body and the lower door body, and the opening portion by being sandwiched between the cleaning tank and the upper door body and the lower door body and a sealing member for sealing the watertight, sealing member includes an upper opening, upper sealing portion for sealing the side portions and corner portions watertight, side seal portion and a corner sealing portion is formed integrally, above With the door closed
The first pressing portion of the upper door body that presses the side seal portion is formed with a plane facing the rear of the dishwasher, and the second pressing portion of the upper door body that presses the upper seal portion is a substantially vertical downward plane. It is formed, improving the third pressing portion of the upper door body for pressing the corner sealing portion is formed by twisting a curved surface, by smoothly connecting Rukoto the first pressing portion and the second pressing part, the sealing performance The purpose is to let you.

In order to achieve the above object, the present invention
A dishwashing machine that injects washing water to wash an object to be cleaned, and opens and closes a washing tank provided in the dishwasher body and an opening of the washing tank, and a rotation axis provided in the washing tank. The upper door body and the lower door body that are pivoted upward and downward, the interlocking means for interlocking the upper door body and the lower door body, and the opening portion by being sandwiched between the cleaning tank and the upper door body and the lower door body and a sealing member for sealing the watertight, sealing member includes an upper opening, upper sealing portion for sealing the side portions and corner portions watertight, side seal portion and a corner sealing portion is formed integrally, above In a state where the door body is closed, the first pressing portion of the upper door body that presses the side seal portion is formed by a plane facing the rear of the dishwasher, and the second door portion of the upper door body that presses the upper sealing portion. The pressing portion is formed of a substantially vertical downward plane, and the third of the upper door body that presses the corner seal portion. The pressing portion is formed by twisting a curved surface, in it shall connect the first pressing portion and a second pressing portion smoothly, to seal the top of the opening in a watertight cleaning tank such as a conventional dishwasher seal By eliminating the joint portion between the member and the seal portion that seals the side portion, water leakage and steam leakage from the joint portion can be suppressed, and the sealing performance can be improved.

  The dishwasher of this invention can suppress the water leak and steam leak from a junction part by eliminating a junction part with the sealing member which seals a side part, and can improve sealing performance.

Side wall part sectional drawing of the closed state of the door of the dishwasher of Embodiment 1 of this invention Side wall part sectional drawing of the open state of the door of the dishwasher of Embodiment 1 of this invention The cross-sectional view of the closed state of the door of the dishwasher of Embodiment 1 of this invention Sectional drawing which shows the locus | trajectory of rotation of the upper door body of the dishwasher of Embodiment 1 of this invention (A) The perspective view which looked at the upper door body of the dishwasher of Embodiment 1 of this invention from the washing tank side (b) The expansion perspective view in the dashed-two dotted line of FIG. 5 (a) (c) The upper part of a washing tank Front enlarged view (d) AA sectional view of FIG. 5 (c) Side wall sectional view of the dishwasher of Conventional Example 1 Side wall sectional view of the dishwasher of Conventional Example 2

1st invention is a dishwasher which wash | cleans a to-be-washed object by injecting washing water, Comprising: The washing tank provided in a dishwasher main body, and the rotation provided in a washing tank by opening and closing the opening part of a washing tank An upper door body and a lower door body that are opened by rotating the opening upward and downward about an axis; interlocking means for interlocking the upper door body and the lower door body; a cleaning tank, an upper door body, and a lower door body; A sealing member that seals the opening in a water-tight manner by sandwiching between the upper sealing part, the side sealing part, and the angular sealing part that seals the upper part, both side parts, and the corner part of the opening in a water-tight manner. The upper door body is formed as a flat surface that faces the rear of the dishwasher, and is configured to press the upper seal portion, with the upper door body being closed and the upper door body being closed. The second pressing portion of the door body is formed by a substantially vertical downward plane and presses the corner seal portion. The third pressing part of the upper door body is formed by twisting a curved surface, the first pressing portion and the dishwasher was characterized Rukoto smoothly connecting the second pressing part, the sealing member to seal the sides By eliminating the joint part, water leakage and steam leakage from the joint part can be suppressed, and the sealing performance can be improved.

A second invention is characterized in that, in the first invention, the seal member is manufactured by extrusion, compared to a case where the seal member is manufactured by injection molding as in a conventional dishwasher. And an inexpensive configuration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 and 2, the dishwasher body 1 is provided with a washing tub 2 inside, and an opening 3 of the washing tub 2 is defined by an upper door body (door body) 4 and a lower door body (door body) 5. It is configured to open and close. An upper support member 6 is fixed to the upper door body 4, and the upper support member 6 is pivotally supported on the base member 8 by an upper fixed pivot 7. A lower support member 9 is fixed to the lower door body 5, and the lower support member 9 is pivotally supported on the base member 8 by a lower fixed pivot 10.

Further, an interlocking link 11 is provided as an interlocking means for interlocking the upper support member 6 and the lower support member 9, and the upper link pivot 12 and the lower link pivot 13 are pivotally supported by the upper support member 6 and the lower support member 9, respectively. ing. The base member 8, the upper support member 6, and the lower support member 9 are provided on the left and right sides of the cleaning tank 2.

  The lower door body 5 is provided with a push button switch 14 and a lock means 15 for fixing the lower door body 5 in the closed state, and interlocked with the push button switch 14 from the locking portion 16 provided in the cleaning tank 2. 15 can be released. Further, the lock means 15 is provided with a lock means detection device (not shown) and can detect whether or not the lock means 15 is engaged with the engaging portion 16.

  When the detection state of this lock means detection device and the input function of the operation operation of the dishwasher are linked, the lower door body 5 is not completely closed, that is, the lock means detection device indicates the engagement state of the lock means 15. When not detected, it is configured not to drive.

  An elastic sealing member 17 for sealing the lower door body 5, the upper door body 4 and the cleaning tank 2 is attached to the opening 3 of the cleaning tank 2. The sealing member 17 for sealing the upper part of the opening 3 and the side part of the opening 3 is formed integrally and seamlessly.

  Further, a pressing portion (not shown) that presses the side seal portion of the seal member 17 on the side of the opening 3 in a substantially horizontal direction is provided on the side of the lower door body 5. Similarly, the 1st press part 18 which presses the side seal part of the opening part 3 side part in a substantially horizontal direction is provided in the upper door body 4 side part. The first pressing portion 18 is a rectangular flat surface that faces the rear of the dishwasher body 1 in a state where the upper door body 4 is closed, and is substantially a side surface of the seal member 17. Press the seal.

  A second pressing portion 19 that presses the upper seal portion of the seal member 17 above the opening 3 in a substantially vertical direction is provided on the upper door body 4. The second pressing portion 19 is a rectangular plane that faces downward in a state in which the upper door body 4 is closed, and is long in the width direction of the dishwasher body 1, and the sealing member 17 faces substantially vertically downward in this plane. Press the upper seal part.

  Moreover, as shown to Fig.5 (a)-(d), the 3rd press part 20 is provided in the upper corner part by the side of the washing tank 2 of the upper door body 4. As shown in FIG. The third pressing portion 20 smoothly connects the first pressing portion 18 and the second pressing portion 19 and connects the corner portion of the seal member 17, that is, the upper seal portion and the side seal portion. Press the corner seal part. Moreover, the 3rd press part 20 is comprised by the twisted curved surface, and it connects with the 1st press part 18 and the 2nd press part 19 without a level | step difference. Here, the upper seal portion, the side seal portion, and the corner seal portion are integrally formed without a seam.

  In addition, the interlocking link 11 is provided with a first holding part 21 and a second holding part 22, and the first holding part 21 is connected to the base member 8 by a first spring 23 (a tension coil spring). In the closed state of the door body, a force is applied to the open side, and in the open state, a force is applied in the closing direction. Further, the second holding portion 22 is connected to the upper support member 6 by a second spring 24 (a tension coil spring), and is configured to apply a force in a direction to always open the upper door body 4. The first spring 23 and the second spring 24 constitute a mechanism that automatically opens the upper door body 4 and the lower door body 5 from the closed state to the open state.

  The base member 8 supports a sliding member 25 that slides on the upper support member 6, and the sliding member 25 applies a load to the sliding surface with the upper support member 6 by a third spring 26. ing.

  In addition, the upper support member 6 is made of resin, and is provided with a closed contact portion 27 and an open contact portion 28 separately from the support portion of the upper door body 4, The sliding member 25 is in contact with the sliding member 25. Further, a spring holding portion 29 for holding the second spring 24 is provided between the upper fixed pivot 7 and the upper link pivot 12.

  Further, the pivot holding portion 30 that holds the upper link pivot 12 has a long hole shape in the direction of the substantially interlocking link 11 that can move at least upward from the position of the upper link pivot 12 in the closed state of the upper door body 4. It is configured to absorb the variation of the link mechanism and reliably close it.

  Explaining the operation in the above configuration, the upper door body 4 and the lower door body 5 are configured to be opened and closed by being turned up and down by the upper support member 6 and the lower support member 9, respectively. When changing to the state, the upper fixed pivot 7 is rotated so that the upper door body 4 moves upward from the substantially horizontal state or the substantially horizontal state until the upper end portion of the upper door body is slightly more polygonal than the lower end portion. The lower door body 5 is also rotated downward until the lower door 5 is substantially horizontal by the rotation of the lower fixed pivot 10.

  As described above, since the lower door body 5 rotates about the lower fixed pivot 10, the seal member 17 pressing portion on the side of the lower door body 5 in the closed state causes the side seal portion of the seal member 17 to be substantially horizontal. Press in the direction.

  In the door closed state, the pressing portion on the side of the lower door 5 and the pressing portion (the first pressing portion 18) on the side of the upper door 4 are substantially on the same plane. Therefore, the 1st press part 18 of the upper door body 4 becomes a structure which presses the side seal part of the sealing member 17 in a substantially horizontal direction like the press part of the lower door body 5 side part.

  Further, the upper door body 4 rotates around the upper fixed pivot 7. Therefore, the trajectory of the rotation of the upper door body 4 from the opened state to the closed state is as shown in the order of FIG. 4A → FIG. 4B → FIG. 4C. In other words, the upper pressing portion (second pressing portion 19) of the upper door body 4 presses the seal member 17 in a substantially vertical downward direction due to the rotational trajectory. That is, the direction (seal direction) in which the seal member 17 is pressed is different between the first pressing portion 18 and the second pressing portion 19 of the upper door body 4. That is, while the upper door body 4 is closed, the first pressing portion presses the upper seal portion of the seal member 17 substantially vertically downward, while the second press portion is a side seal portion of the seal member 17. Press horizontally in the direction of the back of the dishwasher body.

Therefore, in the present embodiment, a third pressing portion 20 that smoothly connects the first pressing portion 18 and the second pressing portion 19 is provided. FIG. 5A is a perspective view of the upper door body 4 as viewed from the cleaning tank 2 side. As shown in the figure, the third pressing portion 20 is formed of a twisted curved surface and plays a role of gradually changing the pressing direction of the seal member 17. That is, in a state where the upper door body 4 is closed, a first pressing portion that is a plane that faces substantially vertically downward, and a second pressing portion that is a plane that faces the rear of the dishwasher body in the horizontal direction, By connecting with a third pressing portion formed of a twisted curved surface, the water tightness of the upper door body 4 and the seal member 17 integrally configured with the upper seal portion, the side seal portion, and the corner seal portion is improved. Can be made.

  By adopting such a configuration, the connection between the first pressing portion 18 and the second pressing portion 19 can be configured without a step, so that the seal of the portion becomes weak and causes water leakage and steam leakage. Can be prevented.

  In addition, the upper seal portion that seals the upper portion of the opening 15 and the side seal member that seals the side portion are integrally formed, and since there is no connection portion between the seal members in the portion, the seal is weakened. Can be prevented.

  Further, the seal member 17 is pressed from different directions by the first, second and third pressing portions 18, 19 and 20, but the portion where the seal member 17 is pressed is formed in a substantially cylindrical shape having a substantially circular cross section. Therefore, watertightness can be ensured even if the pressing direction changes.

  Moreover, since the cost concerning a sealing member can be suppressed by manufacturing the said sealing member 17 by an extrusion process compared with the case where it manufactures by a direct pressure system, a cheaper dishwasher can be provided.

  In addition, when attaching the seal member 17 manufactured by the extrusion process to the opening of the cleaning tank, in order to prevent the seal member from being crushed and deformed at the upper corner portion of the opening 3 to be sweetened, It is preferable to set the corner portion routing radius to be larger (for example, about R80).

  Next, the operation when the door is opened will be described. By operating the push button switch 14 provided on the lower door body 5 by the interlocking link 11 biased to the open side by the first spring 23 and the second spring 24, the locking means 15 is released, and the upper Since the door body 4 and the lower door body 5 rotate in conjunction with each other, the user does not need to grasp the door body and perform an opening operation, and the upper door body 4 and the lower door body 5 are automatically operated from the closed state to the opened state. Can be opened.

  Further, the first spring 23 biases the force in the closing direction during the opening operation of the door body, so that the impact force when the door body is opened can be reduced.

  Further, the closing contact portion 27 provided on the upper support member 6 applies a force to the closing side by the sliding member 25 biased by the third spring 26, thereby delaying the opening speed of the door body, Even when the user operates the push button switch 14 during the operation, the opening speed of the upper door body 4 and the lower door body 5 immediately after the release can be reduced, and the washing water sprayed simultaneously with the release of the locking means 15 Can be prevented from being ejected outside the dishwasher body 1.

  Further, the opening force of the door body is reduced by the frictional force generated by the opening contact portion 28 and the sliding member 25 biased by the third spring 26, and the impact force at the time of opening is reduced. Moreover, rebound due to the impact of the lower door body 4 can be prevented.

  Further, the sliding member 25 is installed on the base member 8 on which the upper support member 6 and the lower support member 9 are installed, so that the error of the respective installation positions becomes only the processing error, and the upper door body 4 and the lower door body 5. The movement of the door body after assembling can be stabilized, for example, the variation in the opening speed and the impact force at the time of opening can be made extremely small.

  In the vicinity of the closed state of the upper door body 4, the second spring 24 generates a moment force that acts on the upper fixed pivot 7 and the spring holding portion 29 in the closing direction. As for the position of the pivot shaft 12, the upper door body 4 can always be positioned in the closing direction in the pivot shaft holding portion 30 having a long hole shape. With this configuration, it is possible to eliminate the linkage failure between the upper door body 4 and the lower door body 5 due to dimensional variations in the link configuration, and the upper door body 4 and the lower door body 5 can be smoothly opened and closed, and stable sealing performance can be achieved. Can be secured.

  As described above, the dishwasher according to the present invention can improve the water tightness, and thus can be applied to uses such as a table-top type and a built-in type dishwasher.

DESCRIPTION OF SYMBOLS 1 Dishwasher main body 2 Washing tank 3 Opening part 4 Upper door body 5 Lower door body 17 Seal member 18 1st press part (upper door body side part)
19 Second pressing part (upper part of upper door)
20 3rd press part (upper corner part of an upper door body)

Claims (2)

A dishwasher that sprays washing water to wash an object to be cleaned,
A washing tank provided in the dishwasher body;
An upper door body and a lower door body that open and close the opening of the cleaning tank, and rotate and open the opening upward and downward around a rotation axis provided in the cleaning tank;
Interlocking means for interlocking the upper door body and the lower door body;
A sealing member that seals the opening in a water-tight manner by being sandwiched between the cleaning tank and the upper door body and the lower door body,
The seal member is configured integrally with an upper seal part, a side seal part and a square seal part that seal the upper part, both side parts, and the corner part of the opening in a water-tight manner ,
In the state where the upper door body is closed, the first pressing portion of the upper door body that presses the side seal portion is formed by a plane facing the rear of the dishwasher and presses the upper seal portion. The second pressing portion of the door body is formed by a substantially vertical downward plane;
The angle third pressing portion of the sealing portion the upper door body for pressing the is formed by twisting a curved surface smoothly connecting that dishwasher and said first pressing portion and the second pressing part. Sealing member dishwasher according to claim 1 Symbol placement is manufactured by extrusion.