JP5367457B2 - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher capable of preventing leakage of washing water. <P>SOLUTION: The dishwasher 1 having a second housing 4 forming a washing chamber S and a door 5 rotated so as to be freely taken in and out from an opening 18 formed on the second housing 4, includes: a sealing member 50 provided along the upper edge part A of the door 5 for sealing a gap between the upper edge part A of the door 5 in a closed state and the second housing 4; and a regulation member 56 provided along the side edge W1 of the opening 18 for regulating the movement of the side part of the door 5, and the regulation member 56 has a guide portion 58 for guiding the washing water flowing in from the side of the sealing member 50 into the washing chamber S. By the dishwasher 1, even if the washing water flows out to the side part through the sealing member 50, since it is guided into the washing chamber S by the guide portion 58 of the regulation member 56, the leakage of the washing water through the side surface 22 of the door 5 is prevented. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a dishwasher for cleaning dishes.

  Conventionally, as a technique in such a field, for example, a dishwasher described in Japanese Patent Application Laid-Open No. 7-124093 has been known. This dishwasher is provided along the side edge of the opening that opens and closes the housing that forms the washing chamber, the door that rotates freely through the opening formed in the housing, and the side edge of the opening. A resin-made restricting member, and an arc-shaped protrusion provided on the side surface of the door and sliding with the restricting member when the door is opened and closed. In this dishwasher, when the door is opened and closed, the restricting member and the protruding portion rub against each other in a point contact state, so that the rubbing trace is reduced as compared with the case where the restricting member and the door rub against each other directly in a surface contact state. Therefore, a good appearance can be obtained.

JP 7-124033 A

  By the way, in the dishwasher as described above, it is necessary to prevent the washing water from leaking from the gap between the door and the housing during washing. However, if the gap above and to the side of the door is sealed with packing to prevent leakage, the number of parts increases and the structure becomes complicated. Furthermore, there is a problem that it is difficult to provide packing on the side of the door because it becomes an obstacle when the door is opened and closed.

  An object of this invention is to provide the dishwasher which can aim at the leakage prevention of washing water.

The present invention relates to a dishwasher having a housing that forms a washing chamber and a door that pivots freely through an opening formed in the housing. A seal member that seals a gap between the upper edge portion of the door and the housing, and a restriction member that is provided along a side edge of the opening and restricts lateral movement of the door. A guide portion that guides cleaning water flowing from the member side into the cleaning chamber, and is arranged so that the upper end of the restriction member and the end portion of the seal member face each other; the guide portion is formed at the upper end of the restriction member; It has a drop recess for receiving the wash water flowing out from the seal member side, and a flange surface for guiding the wash water in the drop recess into the wash chamber .

  According to the dishwasher of the present invention, the gap between the upper edge portion of the door and the housing is sealed by the sealing member, and leakage of washing water is prevented. Even if the cleaning water flows sideways through the seal member, it is guided into the cleaning chamber by the guide portion of the regulating member, so that leakage of the cleaning water along the side surface of the door can be prevented. Moreover, by forming the guide portion on the regulating member, it is possible to prevent leakage without adding a new member, and as a result, it is possible to reduce the number of parts and simplify the structure. This is advantageous for reducing the cost of the dishwasher.

In addition, when such a configuration is adopted, the regulating member having the guide portion can be formed into a simple shape, thereby reducing the cost of the regulating member, that is, reducing the cost of the dishwasher.

In addition, it is preferable that the protrusion provided on the side surface of the door extends along the restricting member when the door is closed and is juxtaposed laterally with respect to the restricting member.
According to such a configuration, even if the cleaning water flows along the side surface of the door or the inner wall of the housing, the flow of the cleaning water can be reliably prevented by the cooperation between the protrusion and the regulating member.

  The seal member has a stopper portion that contacts the housing when the door is closed, and a tongue that protrudes from the stopper portion and closes a gap between the upper edge of the door and the housing when the door is closed, The tongue piece is preferably pressed against the housing in a curved state at the time of contact with the housing.

  According to such a configuration, the stopper portion and the tongue piece are formed as one member, so that the stopper portion and the packing or the like (tongue piece) that closes the gap are assembled separately. Assembling errors of the members hardly occur, so that the timing at which the stopper portion comes into contact with the housing and the timing at which the tongue piece comes into contact with the housing can be kept constant. As a result, it is possible to avoid excessive bending of the tongue piece and a decrease in the adhesion force to the housing, so that the life of the seal member can be extended and the reliability can be improved.

  According to the present invention, it is possible to prevent leakage of cleaning water.

It is a fragmentary sectional view showing one embodiment of a dishwasher concerning the present invention. It is a fragmentary sectional view which shows the dishwasher of FIG. It is a side view which shows the tableware washing machine of FIG. It is a perspective view which shows the tableware washing machine of FIG. It is a perspective view which shows the door of FIG. It is sectional drawing which shows the sealing member of FIG. It is an expanded sectional view which shows the sealing state by a sealing member. It is a perspective view which shows the control member of FIG. It is a perspective view which shows the relationship between a sealing member and a control member. It is a figure which shows the state into which washing water flows into a control member. It is sectional drawing along the XI-XI line of FIG.

  Hereinafter, a preferred embodiment of a dishwasher according to the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 4, the dishwasher 1 includes a washing machine main body 2 having a stainless steel casing and a stainless steel door for opening and closing a washing chamber S formed in the washing machine main body 2. 5 and 6. This dishwasher 1 is a so-called simultaneous door open type, and can be opened and closed simultaneously by interlocking the left and right doors 5 and 6. In the dishwasher 1, the dishes arranged in the tray can be carried into and out of the washing room S with the left and right doors 5 and 6 being opened.

  The cleaning machine main body 2 includes a first housing 3 that is positioned on the lower side and surrounds the machine room, and a second housing 4 that is positioned on the upper side and forms the cleaning chamber S. This machine room accommodates a cleaning pump, a rinsing pump, a rinsing hot water storage tank, and the like (all not shown). The machine room 3 is supported by four legs 3a. A tank portion 7 that forms a part of the cleaning chamber S is provided in the upper portion of the first housing 3, and a cleaning tank 8 for storing cleaning water is provided in the lower portion of the tank portion 7.

  Inside the tank portion 7, a lower washing nozzle 9 having three arms extending radially and a lower rinsing nozzle 10 having two arms extending in a straight line are rotatably arranged on the same axis. ing. The lower cleaning nozzle 9 and the lower rinsing nozzle 10 are connected to a cleaning tank 8 and a rinsing hot water storage tank (not shown) via a double-structured pipe 11.

  An upper cleaning nozzle 12 having three arms extending radially and an upper rinsing nozzle 13 having two arms extending in a straight line are rotatably disposed on the same axis at the upper portion of the cleaning chamber S. ing. The upper cleaning nozzle 12 and the upper rinsing nozzle 13 are connected to the cleaning tank 8 and the rinsing hot water storage tank via a pipe 14 having a double structure. With such a two-stage upper and lower nozzle configuration, high cleaning efficiency and rinsing efficiency for the dishes in the cleaning chamber S can be obtained.

  The substantially gate-shaped second housing 4 includes a pair of side panels 15 and 16 and a top plate 17 that connects the upper ends of the side panels 15 and 16. Rectangular openings 18 and 19 are formed on the left and right sides of the second housing 4, and the openings 18 and 19 are opened and closed by substantially hood-like doors 5 and 6.

  As shown in FIGS. 1 to 5, the door 5 is a so-called round door that rotates freely through the opening 18. The door 5 is formed in a substantially hood shape by a main surface 21 provided with a handle 20 and a pair of side surfaces 22 and 23.

  A plate-like first connecting portion 24 protruding to the opposite side of the main surface 21 is fixed to the back side of the one side surface 22. One end of a first rotary shaft 25 that allows the door 5 to rotate is fixed to the first connecting portion 24 via a screw, and the other end side of the first rotary shaft 25 is connected to the side panel 15. It penetrates and is fixed to the gear 45.

  In addition, a plate-like third connecting portion 28 protruding to the opposite side of the main surface 21 is fixed to the back side of the other side surface 23. The third connecting portion 28 is formed with a shaft hole for rotatably supporting one end of a third rotating shaft (not shown) that allows the door 5 to rotate. The other end of the third rotation shaft is fixed to the side panel 16.

  In addition, a protrusion 26 having an L-shaped cross section for preventing the washing water from leaking from the gap between the door 5 and the side panel 15 is fixed to the side surface 22. The protrusion 26 is a stainless steel member and is fixed to the door 5 by welding. The projecting portion 26 formed in a substantially square shape in the longitudinal direction has an upper projecting portion 26a that extends along the vertical direction when the door is closed, and extends from the lower end of the upper projecting portion 26a toward the back side of the door 5. And a lower protrusion 26b extending obliquely downward. The lower projection 26b is arranged such that the lower end thereof enters the second housing 4 when the door is opened. The cleaning water adhering to the protrusion 26 at the time of cleaning flows down along the lower protrusion 26 b and then falls from the lower end to the tank portion 7 at a position away from the opening 18.

  Also, a resin stopper 27 is provided at the approximate center of the side surface 22 of the door 5 to prevent the door from opening too much by contacting the end of the door 6 when the door is opened. The side surface 23 is also provided with similar protrusions and stoppers (not shown).

  The door 6 is a round door having the same configuration as the door 5. The door 6 is formed in a substantially hood shape by a main surface 31 provided with a handle 30 and a pair of side surfaces 32 and 33. On the back side of one side surface 32, a plate-like second connecting portion 34 protruding to the opposite side of the main surface 31 is fixed. One end of a second rotating shaft 35 that enables the door 6 to rotate is fixed to the second connecting portion 34 via a screw, and the other end side of the second rotating shaft 35 is connected to the side panel 15. It penetrates and is fixed to the gear 46.

  Further, on the back side of the other side surface 33, a plate-like fourth connecting portion 38 that protrudes on the opposite side to the main surface 31 is provided. A shaft hole for rotatably supporting one end of a fourth rotating shaft (not shown) that allows the door 5 to rotate is formed in the fourth connecting portion 38. The other end of the fourth rotating shaft is fixed to the side panel 16. Further, the side surfaces 32 and 33 of the door 6 are provided with projections (not shown) having the same configuration as the projections 26.

  On the surface of the side panel 15, an interlocking mechanism 40 for opening and closing the doors 5 and 6 simultaneously is disposed. The interlocking mechanism 40 includes an L-shaped first rotating arm 41 that is fixed to the end of the first rotating shaft 25, and a first gear 45 that is fixed to the end of the first rotating arm 41. And an L-shaped second rotating arm 42 fixed to the end of the second rotating shaft 35, and fixed to the end of the second rotating arm 42 and meshed with the first gear 45. And a second gear 46.

  The first turning arm 41 and the upper end of the side panel 15 are connected by a tension spring 43 for biasing the door 5 in the opening direction. Three hook holes 41 a and 15 a are formed side by side at the end of the first rotating arm 41 and the upper end of the side panel 15, and the elasticity of the tension spring 43 is changed by hooking the hooks at both ends of the tension spring 43. The force can be changed as appropriate, whereby the opening / closing force of the doors 5 and 6 can be changed as appropriate.

  Similarly, the second rotating arm 42 and the upper end of the side panel 15 are connected by a tension spring 44 for biasing the door 6 in the opening direction. Three hook holes 42 a and 15 b are formed side by side at the end of the second rotating arm 42 and the upper end of the side panel 15, and the elasticity of the tension spring 44 is changed by hooking the hooks at both ends of the tension spring 44. The force can be changed as appropriate, whereby the opening / closing force of the doors 5 and 6 can be changed as appropriate.

  Further, the first gear 45 fixed to the first rotating shaft 25 and the second gear 46 fixed to the second rotating shaft 35 are engaged with each other, so that the door 5 and the door 6 are interlocked, The doors 5 and 6 are simultaneously opened and closed. Further, the side panel 15 is provided with a door opening / closing detection unit 48 that detects opening / closing of the doors 5 and 6. The door open / close detection unit 48 includes a movable magnet 48 </ b> A attached to the lower end of the second rotating arm 42 and a fixed detector 48 </ b> B attached to the surface of the side panel 15. In the door opening / closing detection unit 48, the magnet 48A is separated from the detector 48B, whereby the open state of the doors 5 and 6 is detected.

  An outer panel (not shown) is attached on the side panel 15 of the second housing 4 so as to cover the interlocking mechanism 40 and the door opening / closing detection unit 48. A substantially gate-shaped inner panel 49 is provided inside the second housing 4 along the second housing 4, and doors 5 and 6 are disposed between the inner panel 49 and the second housing 4. Has been.

  As shown in FIGS. 5 to 7 and 9, a seal member 50 made of an elastic material such as rubber is fixed to the door 5 along the upper edge portion A of the door 5. The seal member 50 seals the gap between the upper edge portion A of the door 5 and the second housing 4 when the door is closed. The sealing member 50 has a total length longer than that of the upper edge portion A, and its end portions B1 and B2 project to the side of the upper edge portion A of the door 5.

  The seal member 50 includes a stopper portion 51 having a substantially L-shaped cross section, and a tongue piece 52 protruding obliquely upward from the upper end of the stopper portion 51. The stopper portion 51 has a substantially L-shaped cross section by a plate-like fixing portion 51a extending along the upper edge portion A of the door 5 and a thick portion 51b that comes into contact with the second housing 4 when the door is closed. It is formed in a shape. A holding plate 53 having an L-shaped cross section is disposed on the fixed portion 51a. The holding plate 53 and the seal member 50 are fixed by screwing a screw 54 inserted into the screw hole 51 c into the door 5. Standing plate portions 53b are formed at both ends of the holding plate 53 extending along the fixed portion 51a to prevent the washing water from flowing out from the side of the seal member 50.

  The top plate 17 of the second housing 4 has an abutment piece 17a extending in the width direction of the opening 18 so as to abut on the thick portion 51b of the stopper portion 51 when the door is closed. Is formed. The stopper portion 51 functions as a stopper that stops the rotation of the door 5 in the closing direction by contacting the contact piece 17a of the second housing 4 when the door is closed, and at the same time as stopping the rotation of the door 5 It has a function of closing the gap H between the edge A and the contact piece 17a of the second housing 4.

  Further, the tongue piece 52 comes into contact with the contact piece 17 a and closes the gap H between the upper edge portion A of the door 5 and the contact piece 17 a of the second housing 4. The tongue piece 52 protrudes from the upper end of the stopper portion 51 in the radial direction of the door 5.

  In the sealing member 50, when the door is closed, the tongue piece 52 is pressed in a curved state so as to bend upward with respect to the contact portion 17a, and is brought into close contact with the contact surface 17a. A gap H between A and the second housing 4 is closed. In addition, even if the position of the door 5 is slightly shifted, the tongue piece 52 projecting obliquely upward follows and deforms, so that a reliable clearance of the gap is achieved, thereby improving the reliability of the seal member 50. Figured.

  Further, since the stopper portion 51 and the tongue piece 52 are formed as one member, the assembly error of the member occurs as compared with the case where the stopper portion 51 and the packing for closing the gap are provided separately. It is difficult and the stopper portion 51 is positioned in the immediate vicinity of the tongue piece 52. Therefore, the timing at which the stopper portion 51 abuts on the second housing 4 and the timing at which the tongue piece 52 abuts on the second housing 4 are kept constant. Can do. As a result, it is possible to avoid excessive bending of the tongue piece 52 and a decrease in the adhesion to the second housing 4, so that the life of the seal member 50 can be extended and the reliability can be improved. A seal member 55 having the same configuration as that of the seal member 50 is also fixed to the upper edge portion of the door 6.

  As shown in FIGS. 4 and 8, a screw hole 56 a is formed in the resin-made restricting member 56 extending in the vertical direction, and the restricting member 56 is a screw inserted into the screw hole 56 a of the restricting member 56 (see FIG. 4). (Not shown) is fixed by being screwed to the side edge of the side panel 15 (side edge W1 side of the opening 18). Further, a resin-made regulating member 57 having the same configuration as that of the regulating member 56 is fixed to the side edge of the side panel 16 (side edge W2 side of the opening 18). The regulating member 56 and the regulating member 57 are for preventing lateral displacement of the door 5 by regulating the lateral movement of the door 5, and adjust the distance between the door 5 and the side panels 15, 16. . Hereinafter, for simplification of description, only the restriction member 56 will be described, and description of the restriction member 57 will be omitted.

  As shown in FIGS. 9 to 11, the upper end C of the restricting member 56 is opposed to the end B <b> 1 of the seal member 50, and the opening 18 is arranged in parallel with the upper protrusion 26 a on the side when the door is closed. It arrange | positions along the side edge W1. The regulating member 56 has a guide portion 58 that guides the cleaning water flowing from the end B1 side of the seal member 50 to the cleaning chamber S. The guide portion 58 includes a drop recess 59 that receives the wash water flowing out from the end B1 of the seal member 50, and a flange surface 60 that guides the wash water in the drop recess 59 into the wash chamber S. The

  The drop recess 59 formed in the upper end C of the regulating member 56 includes a first inner wall surface 59a on the seal member 50 side, a second inner wall surface 59b orthogonal to the first inner wall surface 59a, and the side panel 15. And the inside is open. The collar surface 60 communicates with the drop recess 59 and is formed along the vertical direction. Further, the flange surface 60 is formed perpendicular to the inner surface of the side panel 15. The lower end of the flange surface 60 reaches the vicinity of the tank portion 7 of the machine room portion 3.

  In the guide portion 58 configured in this way, as indicated by an arrow P, the cleaning water that has flowed out from the end B1 of the seal member 50 drops into the recess 59. Thereafter, the washing water flows down the ridge surface 60 and falls from its lower end to the tank portion 7, and flows into the washing tank 8 along the bottom surface of the tank portion 7. A pair of resin-made restricting members (not shown) and restricting members 63 (see FIG. 2) for restricting the lateral movement of the door 6 are also provided on the side panels 15 and 16 on the door 6 side. ing.

  According to this dishwasher 1, the gap between the upper edge portion A of the door 5 and the second housing 4 is sealed by the sealing member 50, thereby preventing leakage of washing water. Even if the cleaning water flows to the side along the seal member 50, it is guided into the cleaning chamber S by the guide portion 58, so that the cleaning water can be prevented from leaking from the gap between the door 5 and the housing 4. It is done. Moreover, by forming the guide portion 58 in the regulating member 56, it is possible to prevent leakage without adding a new member, and as a result, it is possible to reduce the number of parts and simplify the structure. This is advantageous for cost reduction of the dishwasher 1.

  Further, by forming the guide portion 58 from the recessed portion 59 and the flange surface 60, the shape of the regulating member 56 can be simplified. This is advantageous for reducing the cost of the regulating member 56, that is, for reducing the cost of the dishwasher 1.

  Further, as shown in FIG. 11, the protrusion 26 fixed to the door 5 and the restricting member 56 fixed to the side panel 15 include the rising surface 26 c on the cleaning chamber S side of the protrusion 26 and the flange between the restricting member 56. It arrange | positions so that the surface 60 may be aligned in a straight line at the side when the door is closed.

  According to such a configuration, as shown by the arrow N, even if the cleaning water flows along the side surface 22 of the door 5, it collides with the rising surface 26c, the direction of the flow is changed to the side, With the momentum, the cleaning chamber S is returned to the cleaning chamber S along the side panel 15 with hardly entering between the rising surface 26 c and the flange surface 60. Similarly, as shown by the arrow M, even if the cleaning water flows along the inner surface of the side panel 15, it collides with the flange surface 60 and the direction of the flow is changed to the side. Is returned to the cleaning chamber S along the side surface 22 of the door 5 with almost no intrusion between the wall surface 60 and the collar surface 60.

  Furthermore, as shown in FIGS. 8 and 11, the first side surface 61 of the regulating member 56 that faces the side surface 22 of the door 5 when the door is closed is formed perpendicular to the flange surface 60. The first side surface 61 is exposed to the outside when the door is opened. Further, the first side surface 61 forms a part of the opening 18.

  Moreover, the 1st side surface 61 is formed so that it may approach the side surface 22 of the door 5 in steps, so that it goes outside. The first side surface 61 has a step surface 61 a perpendicular to the inner surface of the side panel 15. The step surface 61 a is formed on the outer side from the upper protrusion 26 a and is formed on the door 5 side from the flange surface 60. The second side surface 62 of the regulating member 56 exposed to the outside is formed perpendicular to the inner surface of the side panel 15.

  The restricting member 56 is formed so as to gradually increase from the flange surface 60 toward the opening 18, and a slight amount of cleaning water that has entered the gap between the standing surface 26 c and the flange surface 60 is restricted. The stepped surface 61a is impinged and the flow is hindered. That is, by forming the regulating member 56 in such a shape, the gap generated between the side surface 22 of the door 5 and the inner surface of the side panel 15 can be narrowed in stages, so that the gap can be made a so-called labyrinth. Contributes to preventing water leakage.

  It goes without saying that the present invention is not limited to the embodiment described above. For example, the dishwasher 1 is not limited to the simultaneous door open type, and the present invention can be suitably applied as long as it includes at least one round door.

  Moreover, the guide part 58 formed in the control member 56 is not restricted to what was mentioned above. For example, there may be a configuration having no depression and only a ridge surface, or a configuration having a pipe-shaped flow path portion.

  Various labyrinth structures for the gap formed by the cooperation between the projecting portion 26 and the restricting member 56 can be used.

  DESCRIPTION OF SYMBOLS 1 ... Tableware washing machine, 2 ... Washing machine main body, 3 ... 1st housing, 4 ... 2nd housing, 5,6 ... Door, 18, 19 ... Opening part, 26 ... Projection part, 26a ... Upper projection part, DESCRIPTION OF SYMBOLS 50 ... Seal member, 51 ... Stopper part, 52 ... Tongue piece, 56, 57, 63 ... Restriction member, 58 ... Guide part, 59 ... Drop-in recessed part, 60 ... Saddle surface, A ... Upper edge part of door, B1, B2 ... end of the seal member, S ... cleaning chamber, W1, W2 ... side edges of the opening.

Claims (3)

In a dishwasher having a housing that forms a washing chamber, and a door that pivots freely through an opening formed in the housing,
A seal member provided along an upper edge of the door, and sealing a gap between the upper edge of the door in a closed state and the housing;
A regulating member that is provided along a side edge of the opening and regulates lateral movement of the door;
The regulating member has a guide portion that guides cleaning water flowing from the seal member side into the cleaning chamber ,
The upper end of the restriction member and the end of the seal member are arranged to face each other,
The guide portion is formed at the upper end of the restricting member and receives a wash recess that receives the wash water flowing out from the seal member side, and a flange surface that guides the wash water in the drop recess into the wash chamber. A dishwasher, characterized by comprising: Projections provided on the side surface of the door, along with extending along said regulating member during closing of the door, to claim 1, characterized in that it is juxtaposed laterally to the regulating member The dishwasher described. The seal member includes a stopper that abuts the housing when the door is closed, and a tongue that protrudes from the stopper and closes the gap between the upper edge of the door and the housing when the door is closed. And having
The dishwasher according to claim 1 or 2 , wherein the tongue piece is pressed against the housing in a curved state at the time of contact with the housing.

Images