JP2005296545A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the flowing out of wash water from a dishwasher. <P>SOLUTION: This dishwasher stopping the operation of a washing pump according to the opening operation of an upper side door body/a lower side door body, is characterized in that the opening of the upper side door body/the lower side door body has a slight-opening initial opening stage and a full-opening fully opening stage, retains the opening states of the initial opening stage and the fully opening stage, the opening state of the initial opening stage is formed with a clearance between the lower end edge of the upper side door body and the upper end edge of the lower side door body, and the clearance has such a width as intercepting the passing of injection water injected from an injection means to the outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a dishwasher used at home.

  A conventional dishwasher described in Japanese Patent Application Laid-Open No. 2002-219083 (Patent Document 1) has a configuration in which the lower door body and the upper door body are slightly opened, and then the hands are moved to the handle to be fully opened.

JP 2002-219083 A

  In the above conventional example, when the lower door body and the upper door body are slightly opened, there is a risk that the jet of cleaning water sprayed from the cleaning nozzle (injecting means) may flow out of the dishwasher through the slightly opened gap. .

  An object of this invention is to suppress that the jet flow of washing water flows out of the dishwasher.

  The present invention includes a cleaning tank, an injection unit that injects cleaning water into the cleaning tank, a cleaning pump that pressurizes and supplies the cleaning water to the injection unit, and an opening provided on the front surface of the cleaning tank. An upper door body and a lower door body that rotate in the vertical direction for opening / closing, locking means for locking the closed state of the upper door body / lower door body, and opening of the upper door body / lower door body In the dishwasher in which the operation of the washing pump is stopped according to the operation, the opening of the upper door body / lower door body has a slight opening initial opening stage and a full opening fully opening stage, and the initial opening stage. The opening state of the opening stage and the fully opening stage is maintained, and in the opening state of the initial opening stage, a gap is formed between a lower edge of the upper door body and an upper edge of the lower door body, The gap prevents the jet of cleaning water jetted from the jetting means from passing outside. Characterized in that it is a degree of width.

  ADVANTAGE OF THE INVENTION According to this invention, it can suppress that the jet flow of washing water flows out of the outside of a dishwasher.

  The embodiment of the present invention will be described with reference to FIGS. 1 to 9 showing the embodiment.

  As shown in FIGS. 1, 2, 3, and 9, the main body outer frame 10 of the dishwasher includes a cleaning tank 11 therein. The main body outer frame 10 is a steel plate such as stainless steel, and the cleaning tank 11 is formed of a heat-resistant synthetic resin. An upper door body 12 and a lower door body 13 that open and close an opening provided on the front side of the cleaning tank 11 are provided on the front side of the main body outer frame 10.

  The lower part of the washing tank 11 is provided with a rotary jetting body 14 (jetting means) for jetting cleaning water. The rotary sprayer 14 has a spray hole 15 from which cleaning water and rinse water are sprayed. A water reservoir is provided at the bottom of the cleaning tank 11 below the rotary sprayer 14, and the cleaning water is absorbed / pressurized by the cleaning pump and sprayed into the cleaning tank 11 by the rotary sprayer 14. Wash.

  A front panel 16 is provided at the front lower portion of the main body outer frame 10. The front panel 16 is provided with various control devices for operating and controlling the operation of the dishwasher. The opening of the cleaning tank 11 is a large opening formed from the top of the front panel 16 to the ceiling of the cleaning tank 11.

  As shown in FIGS. 3, 5, 6, 7, and 8, the lower door body 13 is supported on the cleaning tank 11 side so as to rotate in the vertical direction. The lower door body 13 is shorter than the frontage width. For this reason, when it opens so that it may fall down to the near side, the length which the lower side door body 13 protrudes is small, and it is easy to use also in a narrow place, and is convenient. Further, the opened lower door body 13 is placed in a substantially horizontal state. For this reason, it also becomes a drip pan dripped from the tableware of the tableware basket pulled out from the washing tank.

  The lower door body 13 is rotatably supported on the cleaning tank 11 side with a lower support arm member 17 and a support substrate 18 (interposition member) that support the lower door body 13. As shown in FIG. 8, the support substrate 18 (interposition member) is placed between a narrow gap between the main body outer frame 10 and the cleaning tank 11, and is attached and fixed to the cleaning tank 11. When adopting a configuration in which the lower support arm member 17 is directly attached to the cleaning tank 11, the support substrate 18 (intervening member) can be omitted.

  The lower support arm member 17 has an intermediate portion rotatably supported by a support substrate 18 (intervening member), one end side attached to the lower door body 13 with a screw or the like, and the other end side to the lower connecting rod 19. It is connected rotatably.

  Similar to the lower door body 13, the upper door body 12 is shorter in length than the frontage width. Moreover, it has an arc shape that follows the shape of the main body outer frame 10 and the cleaning tank 11 from substantially the middle to the upper side. The main body outer frame 10 and the cleaning tank 11 have a shape that follows the convex arc shape of the front upper corner portion.

  The upper door body 12 is rotatably supported on the cleaning tank 11 side via the upper support arm member 20 and the support arm member support piece 30. One end of the upper support arm member 20 is attached and fixed to the upper door body 12 with a screw or the like, and the other end is rotated via an intermediate rotation connecting fulcrum provided in the middle of the support arm member support piece 30 (near the middle). It is connected freely. As shown in FIG. 8, one end of the support arm member support piece 30 is rotatably supported by the cleaning tank 11. Similar to the lower support arm member 17, the support arm member support piece 30 and the upper support arm member 20 are placed between a narrow gap between the main body outer frame 10 and the cleaning tank 11.

  One end of the closing rod 70 is rotatably connected to the connecting means 32 rotation connection fulcrum, and the other end is rotatably and movably connected to the other end side of the support arm member support piece 30. On the other end side of the closing rod 70, a connecting long groove 71 formed so as to extend in the longitudinal direction of the closing rod is provided. The connecting rod 72 provided on the other end side of the support arm member support piece 30 is slidably fitted into the connection long groove 71, whereby the closing rod 70 and the support arm member support piece 30 rotate. It is connected freely and movably. Since the other end of the support arm member support piece 30 is rotatably supported by the projection base 31 provided in the cleaning tank 11, the support arm member support piece 30 is smoothly rotated.

  The upper support arm member 20 is connected to the lower support arm member 17 via a connection means 32 (link mechanism connection means). That is, the connecting means 32 has two connecting rods (the lower connecting rod 19 and the upper connecting rod 33). The two connecting rods are rotatably connected via a rotating connecting fulcrum, and the upper end side of the upper connecting rod 33 is rotatably connected to an intermediate portion of the upper support arm member 20 via a rotating connecting fulcrum. Furthermore, the lower end side of the lower connecting rod 19 is rotatably connected to the lower support arm member 17 via a rotating connection fulcrum.

  The rotation angle restriction stopper 34 for restricting the rotation angle of the support arm member support piece 30 includes an upper angle restriction stopper piece 34A (open side portion) and a lower angle restriction stopper piece 34B (closed side portion). Have. The rotation angle is restricted to a range between the upper angle restricting stopper piece 34A (open side portion) and the lower angle restricting stopper piece 34B (closed side portion). The upper angle restricting stopper piece 34A and the lower angle restricting stopper piece 34B are formed integrally with the cleaning tank 11 from synthetic resin. The rotation angle of the support arm member support piece 30 by the rotation angle restriction stopper 34 is restricted to about 20 degrees.

  The support piece biasing spring 35 is provided so as to pull the support arm member support piece 30 toward the upper angle regulating stopper piece 34A. One end of the support piece urging spring 35 is engaged with the engagement protrusion 36 of the cleaning tank 11, and the other end thereof is locked in the vicinity of the rotational connection fulcrum of the support arm member support piece 30.

  The tension spring 37 is provided so as to draw the vicinity of the pivotal connection fulcrum of the coupling means 32 (the lower coupling rod 19 and the upper coupling rod 33) and the vicinity of the pivotal connection fulcrum of the upper support arm member 20. That is, the tension spring 37 is provided so that one end is locked in the vicinity of the pivotal connection fulcrum of the connecting rod 33 and the other end is latched in the vicinity of the pivotal connection fulcrum of the upper support arm member 20.

  The relaxation spring 80 is provided so that the upper door body 12 and the lower door body 13 are opened gently. The relaxation spring 80 is a tension spring that is stretched between the vicinity of the pivotal connection fulcrum of the connecting means 32 and the cleaning tank 11. When the upper door body 12 and the lower door body 13 are opened, the relaxation spring 80 applies a force in a direction to return to the connecting means 32 that moves in the opening direction.

  Further, the relaxation spring 80 has an action (function) for urging the upper door body 12 / lower door body 13 at the initial opening stage where the upper door body 12 / lower door body 13 starts to open. On the contrary, the restraining spring 90 shown in FIG. 6 makes the initial opening operation slow against the pulling force of the relaxation spring 80.

  The link guide groove 38 movably guides a roller / ball (moving member) provided at a pivotal connecting fulcrum of the connecting means 32 (the lower connecting rod 19 and the upper connecting rod 33). The link guide groove 38 is formed integrally with the cleaning tank 11 from a synthetic resin. A moving member such as a roller moves while being fitted in the link guide groove 38.

  The link guide groove 38 that draws an arc along the outer surface of the cleaning tank 11 follows a trajectory toward the front side of the cleaning tank 11 while rising upward. This trajectory is formed so as to coincide with a trajectory followed by a moving member such as a roller in accordance with the opening / closing operation of the upper door body 12 and the lower door body 13.

  An initial movement guide 38A is provided below the link guide groove 38 so as to communicate therewith. The initial movement guide 38A follows the trajectory that the roller moving member follows in the initial opening when only the lower door body 13 starts to open a little while the upper door body 12 and the lower door body 13 are in the closed state. Is formed.

  When the upper door body 12 and the lower door body 13 are closed, the moving member of the roller that moves in the link guide groove 38 while being fitted with the opening and closing of the upper door body 12 and the lower door body 13 is in the closed state. It is located on the end side (left end) of the initial movement guide 38A, and is located on the upper end side of the link guide groove 38 when the upper door body 12 and the lower door body 13 are open. On the upper end side (one end) of the link guide groove 38, the moving member of the roller is prevented from moving upward. For this reason, the upper end side (one end) of the link guide groove 38 serves as a blocking portion 38B that blocks the movement of the moving member, and the maximum open state of the upper door body 12 and the lower door body 13 is the blocking portion 38B. Be regulated.

  Since there is only one link guide groove 38 on which the moving member of the roller is slidably supported, the configuration is simple.

  The opening of the upper door body 12 / the lower door body 13 has an initial opening stage of slight opening and a fully opening stage of full opening. When the roller moving member is placed on the right end side of the initial movement guide 38A, the open state in the initial opening stage is maintained. When the roller moving member is placed at the uppermost position of the link guide groove 38, the open state in the fully open stage is maintained.

  The lower door body 13 includes a handle 39 and a lock button 40 (locking release button) on the front side, and a door latch 50 (locking means) on the inner side. The upper door body 12 and the lower door body 13 are opened and closed with a handle 39. The upper door body 12 and the lower door body 13 are provided with door locking means so that they cannot be opened until the lock button 40 is pressed to release the engagement of the door latch 50.

  On the outer surface of the cleaning tank 11, lattice-like ribs 51 are integrally formed with the cleaning tank 11 using synthetic resin. By providing the rib 51, the rigidity of the thin washing tank 11 formed of synthetic resin can be increased. Further, the rib 51 prevents a large swinging movement when the lower connecting rod 19, the upper connecting rod 33, the upper support arm member 20, the lower support arm member 17, the support arm member support piece 30, and the like are operated. It also has the function of a vibration suppressing rib. Since the lower connecting rod 19, the upper connecting rod 33, etc. are in contact with the rib 51 and are slidably guided, the lateral vibration when the upper door body 12 and the lower door body 13 are opened and closed is reduced. .

  Next, an embodiment of the present invention will be described from the aspect of operation.

  1 and 5 show a state where the upper door body 12 and the lower door body 13 are closed.

  In this state, the cleaning operation is performed. Since the door latch 50 is locked by the engagement, the upper door body 12 and the lower door body 13 are not opened during the cleaning operation. Unless the lock is released by operating the lock button 40, the upper door body 12 and the lower door body 13 are not opened even if the handle 39 is pulled.

  Now, when the lock of the door latch 50 (locking means) is released by pressing the lock button 40 (lock release button), the upper door body 12 / lower door body 13 are moved as shown in FIG. 2, FIG. 4, FIG. be opened. At this stage, the upper door body 12 is mainly opened, and the upper door body 12 is placed in a state protruding somewhat forward. It looks like only the upper door 12 is open.

  Now, in the initial opening stage where the lower door body 13 starts to open, the roller of the link mechanism as the connecting means 32 moves in the initial movement guide 38A toward the link guide groove 38 side. The movement of the roller follows the circular movement locus of the upper connecting rod 33 around the rotation connecting fulcrum of the middle part of the upper support arm member 20, so that no operating force is generated to move the upper support arm member 20, Only the lower door 13 is opened. After the lower door body 13 is slightly opened, the upper door body 12 is also opened, and the upper door body 12 and the lower door body 13 are fully opened.

  Note that, when the initial opening is completed, the upper door body 12 is placed in a slightly protruding state as described above, and the initial opened state is maintained.

  The mechanism in which the upper door body 12 is opened after the initial opening of the lower door body 13 described above can be achieved simply by additionally extending the initial movement guide 38A in the link guide groove 38 which is a moving member (roller) guide. This can be realized with a very simple configuration.

  The operation of closing the upper door body 12 and the lower door body 13 follows the reverse of the above-described opening operation, and finally the upper door body as shown in FIG. 5 by the closing operation of only the lower door body 13. 12 and the lower door 13 are returned to the closed state.

  As described above, the upper door body 12 and the lower door body 13 are rotated only at the beginning of opening or just before the closing of the upper door body 12. The seal packing provided between them is well sealed. Since the lower door body 13 is closed after the upper door body 12 is closed, the seal packing is sandwiched between the upper door body 12 and the lower door body 13, and sealing is performed well. At the beginning of opening, the lower door body 13 is opened first, and then the upper door body 12 is opened. Therefore, the upper door body 12 / the lower door body 13 are opened without applying excessive force to the seal packing. The operation is light and smooth.

  As described above, the opening operation of the upper door body 12 is performed together with the opening operation of the lower door body 13 after the initial opening of the lower door body 13. During the opening operation of the upper door body 12, the roller of the link mechanism as the connecting means 32 moves upward in the link guide groove 38, so that the lower connecting rod 19 and the upper connecting rod 33 also move upward. . Since the upper support arm member 20 is lifted by the upward movement of the upper connecting rod 33, the upper door body 12 opens. When the lower connecting rod 19 is moved upward, the lower door body 13 is opened through the lower support arm member 17.

  The opening start operation | movement of the upper side door body 12 is described along FIG.

  In a state where the initial opening of the lower door 13 has been completed (FIG. 6), the support arm member support piece 30 is positioned on the lower angle restriction stopper piece 34 </ b> B side of the rotation angle restriction stopper 34. As the upper support arm member 20 is lifted by the upward movement of the upper connecting rod 33, the support arm member support piece 30 pivots upward about a fulcrum supported on the cleaning tank 11 side, thereby controlling the upper angle. It moves to a position where it comes into contact with the stopper piece 34A.

  As the support arm member support piece 30 is turned upward, the upper support arm member 20 has a large turn (a large turning radius) around the fulcrum of the support arm member support piece 30, so that the upper door body 12 rotates diagonally upward and operates so that the upper door body 12 protrudes forward. For this reason, when the initial opening is completed, the lower door body 13 opens and the upper door body 12 does not open.

  In this initial opening, since the upper support arm member 20 is rotated more than the center of the upper support arm member 20 with the support arm member support piece 30 as a center, the upper door body 12 moves obliquely upward. It turns like this. Due to this opening start operation, the upper door body 12 is separated from the cleaning tank 11, so that the friction between the seal packing provided at the mating portion between the upper door body 12 and the cleaning tank 11 and the upper door body 12 is reduced, It can be expected that the door 12 is opened and opened smoothly and smoothly and the wear of the seal packing is reduced.

  When the upper door body 12 is closed, the upper door body 12 is rotated so as to approach the cleaning tank 11 at the final closing stage of the upper door body 12, so that the same goodness as when the upper door body 12 is opened is expected. It can be done.

  After the opening start operation of the upper door body 12 described above is completed, the upper door body 12 shifts to a rotation centering on a pivot connection fulcrum with the support arm member support piece 30. Although the rotation of the upper door body 12 after the transition is smaller than the rotation around the fulcrum of the support arm member support piece 30, it is already separated from the seal packing, so that it does not slide on the seal packing. A smooth opening operation is performed.

  Further, the reason why the turning radius of the upper door body 12 after completion of the opening start operation is reduced is to keep the overall size including the time of using the dishwasher compact. I will explain in detail later.

  The supporting piece biasing spring 35 will be described with reference to FIG.

  The support piece biasing spring 35 is provided because the operation of shifting from the completion of the initial opening of the lower door body 13 (FIG. 6) to the completion of the opening of the upper door body 12 is performed reliably.

  That is, when the upper support arm member 20 is lifted by the upward movement of the connecting rod 33 and the support piece biasing spring 35 is not provided, the support arm member support piece 30 is moved to the lower angle regulating stopper. It is likely that the rotational movement from the piece 34B side to the upper angle restricting stopper piece 34A side is not performed.

  If the support arm member support piece 30 does not move to the upper angle regulating stopper piece 34 </ b> A, the upper support arm member 20 provides a pivotal connection fulcrum between the support arm member support piece 30 and the upper support arm member 20. Since the rotation is performed with a small rotation radius around the center, it is not possible to obtain an operation in which the upper door body 12 as described above moves obliquely upward.

  By providing the support piece biasing spring 35, the pivotal connection fulcrum between the support arm member support piece 30 and the upper support arm member 20 is always urged by an upward force. When the upper support arm member 20 is lifted, the support arm member support piece 30 is reliably rotated and moved from the lower angle restriction stopper piece 34B side to the upper angle restriction stopper piece 34A side. .

  Further, by providing the support piece biasing spring 35, even when the upper door body 12 is closed, the upper door body 12 does not move away from the cleaning tank 11 until the upper door body 12 moves to the final closing stage. It can be expected.

  The tension spring 37 will be described with reference to FIG.

  The reason why the tension spring 37 is provided is that the operation from the completion of the initial opening of the lower door body 13 (FIG. 6) to the completion of the opening of the upper door body 12 is smoothly performed.

  That is, when the upper support arm member 20 is lifted by the upward movement of the connecting rod 33 and the tension spring 37 is not provided, the upper support arm member 20 does not maintain the left and right suspension, and the upper door The body 12 side goes down. The lower end side of the upper door body 12 comes into contact with the upper end side of the lower door body 13 in the initial open state, and the opening operation of the lower door body 13 and the upper door body 12 is not smoothly performed.

  By providing the tension spring 37, the upper support arm member 20 is pulled downward on the side opposite to the upper door body 12 side, and the left and right suspension is maintained (the upper door body 12 side is lifted), and FIG. The state as shown (contact between the upper end side of the lower door body 13 and the lower end side of the upper door body 12 is eliminated) is maintained. Thus, the smooth opening operation of the lower door body 13 and the upper door body 12 is performed.

  Further, by lifting the upper door body 12 side, the lower end inner side of the upper door body 12 does not come into contact with the cleaning tank 11, so that the lower door body 13 and the upper door body 12 can be smoothly opened. Of course, wear of the seal packing is also eliminated.

  Most of the loads on the lower door body 13 and the upper door body 12 through the series of opening / closing operations of the lower door body 13 and the upper door body 12 described above are performed by the lower support arm member 17 or the support arm member support piece 30. Received at the fulcrum. For this reason, since a large load is not applied to the link guide groove 38 into which the roller (moving member) fits, smooth sliding of the roller (moving member) can be expected, and the lower door body 13 and the upper door body 12 can be opened and closed. Light and smooth.

  A complete open state (maximum open state) of the upper door body 12 and the lower door body 13 will be described with reference to FIG.

  The lower door body 13 is opened and the upper door body 12 is placed in a state shown in FIG. This state is a fully open state, and a state in which the state is kept open is maintained. In this fully open state, the opening on the front side of the cleaning tank 11 is fully open, and the tableware basket 60 is pulled out from the cleaning tank 11 as shown in FIG. Can be done.

  Further, in the fully opened state, the roller of the link mechanism which is the connecting means 32 (the rotational connecting fulcrum between the upper connecting rod 33 and the lower connecting rod 19) is positioned at the blocking portion 38 </ b> B of the link guide groove 38.

  That is, the pivotal connection fulcrum of the link mechanism that moves on the locus with the opening / closing operation of the upper door body 12 and the lower door body 13 is the fully open state (fully open state) of the upper door body 12 and the lower door body 13. Then, since it comes to the position past the dead center of the link motion, its fully open state is maintained. For this reason, the malfunction which the upper side door body 12 and the lower side door body 13 close naturally does not arise.

  In the fully opened state, the roller of the link mechanism is restrained and restrained by the blocking portion 38B of the link guide groove 38, so that the upper door body 12 and the lower door body 13 do not move further in the opening direction, It is kept stable.

  In addition to this, even if the upper door body 12 is grasped and lowered in the closing direction, the closing operation of the upper door body 12 is prevented. That is, since the pivotal connection fulcrum of the link mechanism is in a position past the dead center of the link motion, the direction of the force applied to the roller from the upper door body 12 via the upper connection rod 33 is such that the roller is placed on the blocking portion 38B. It becomes a direction to press, and closing of the upper door body 12 is prevented. Even if the upper door body 12 is grasped and is inadvertently closed, the upper door body 12 is prevented from closing, so that the upper door body 12 is prevented from hitting the tableware basket 60 being pulled out. So it is safe.

  When the lower door body 13 is gripped and closed, the direction of the force applied to the roller via the lower connecting rod 19 is the direction to lower the roller, so that the upper door body 12 and the lower door body 13 are opened and closed. Is done. When there is a tableware basket 60 drawn to the upper side of the lower door body 13, the lower door body 13 is not closed, so that the tableware is hardly damaged.

  Since the upper door body 12 has an arc shape from the middle to the upper side, the rear upper corner portion of the main body outer frame 10 is chamfered (the same applies to the washing tank 11), so that the dishwasher can be made compact. I can respond.

  Further, since the gap between the upper door body 12 and the upper side surface of the main body outer frame 10 exceeds the thickness of the finger (about 8 mm), even if the upper door body 12 is pushed and slightly bent, the main body outer frame 10 There is no pressing force on the upper side.

  The function of the closing rod will be described with reference to FIGS.

  When the upper door body 12 and the lower door body 13 are completely open (FIG. 7), the connecting pin 72 is positioned below the connecting long groove 71 of the closing rod 70. In a state where the upper door body 12 is closed and only the lower door body 13 is slightly opened (FIG. 6), the connecting pin 72 is positioned at the top of the connecting long groove 71 of the closing rod 70. For this reason, when the lower door body 13 is further closed, the other end side of the support arm member support piece 30 is pulled downward as the closing rod 70 moves downward. Rotates downward about the fulcrum. The upper support arm member 20 receives a force that moves downward in the rearward direction of the main body outer frame 10 due to the lower rotational movement of the support arm member support piece 30, so that the upper door body 12 is forcibly closed. To be done. Thereby, the upper door body 12 is pressed by the opening part of the front side of the washing tank 11, and watertightness with a seal packing is performed well.

  Further, since the upper door body 12 is reliably closed, the upper door body 12 and the lower door body 3 are also well aligned.

  The strength of the supporting piece biasing spring 35, the pulling spring 37, etc. is selected so that the lower side rotational movement of the supporting arm member supporting piece 30 can be performed without the closing rod 70. Even if the lower rotational movement malfunctions due to variations in accuracy, aging, etc., by providing the closing rod 70, the lower rotational movement is forcibly performed. Is surely done.

  The function of the relaxation spring will be described with reference to FIGS.

The relaxation spring 80 has a minimum extension length in FIG. 6 (the initial opening state of the lower door 13).
In FIG. 5 (closed state), the relaxation spring 80 extends only by the length of the initial movement guide 38A than in FIG. 6 (initial opening state of the lower door body 13). There is no difference in stretch length.

  A restraining spring 90 that resists the tension of the relaxation spring 80 is provided. When the initial opening state is completed, the tensile force of the relaxation spring 80 and the restraining spring 90 is balanced and the initial opening state is maintained.

That is, in FIG. 5 (closed state), when the door latch 50 (locking means) is released by pressing the lock button 40 (locking release button), the initial opening is performed by the pulling force of the relaxation spring 80. When the roller of the link mechanism of the connecting means 32 moves from the left end to the right in the initial movement guide 38A and comes to the right end, the initial opening state is completed. At the completion of the initial opening, the tension force of the relaxation spring 80 and the restraining spring 90 balances and the initial opening completion state of the upper door body 12 / lower door body 13 is maintained. The handle 39 is used to fully open the upper door 12 / lower door 13.

  As the upper door body 12 and the lower door body 13 are opened, the relaxation spring 80 continues to expand, and the extension length becomes maximum in FIG. 7 (completely opened state). That is, the return force of the relaxation spring 80 is increased as the door body is opened more and more.

  On the other hand, as the upper door body 12 and the lower door body 13 are opened, the force of opening the door itself is increased, but the return force of the relaxation spring 80 is also increased. It is done gently. There is no impact when opening the door, and it is possible to provide an easy-to-use dishwasher.

  Next, the opening of the upper door / lower door during operation will be described with reference to FIGS.

  The upper door 12 / lower door 13 is normally opened after the operation of the dishwasher is stopped, but may be opened during operation.

  The washing pump stops in conjunction with the opening of the upper door 12 / lower door 13 (the switch is turned off and the motor is de-energized). However, the cleaning water jet remains from the rotary sprayer 14 for a short time due to the excessive rotation of the cleaning pump and the excessive rotation of the rotary sprayer 14. At this time, there is a possibility that the washing water leaks from the gap between the upper door body 12 and the lower door body 13 that are initially opened.

  However, since the gap between the upper door body 12 and the lower door body 13 is configured as shown in FIGS. 6 and 9, leakage of the cleaning water can be suppressed.

  That is, a gap is formed between the lower end edge of the upper door body 12 and the upper end edge of the lower door body 13 in the open state at the initial opening stage. The width G of this gap was about 3 to 15 mm. From the rotary jetting body 14 (jetting means), a jet of washing water is jetted radially toward the washing tank 11 as indicated by a dotted line. As shown in FIG. 9, the gap width G is a width that blocks the jet of cleaning water from passing outside, so that the outflow of the cleaning jet is suppressed.

  Further, the upper door body 12 has a collar portion 100 extending downward at the inner surface side lower edge portion. Since the flange portion 100 prevents the cleaning jet flow before the gap, the outflow of the cleaning water is further suppressed.

  Further, in the closed state of the upper door body 12 / lower door body 13, since the collar portion 100 overlaps the lower part on the inner surface side of the lower door body 13, the seal of the joint of the upper door body 12 / lower door body 13 is sealed. This further improves the prevention of washing water outflow during operation of the dishwasher.

  Further, a seal member 110 is provided on the outer surface of the collar portion 100. In the closed state of the upper door body 12 / lower door body 13, the sealing is further performed by being sandwiched between the joints of the upper door body 12 / lower door body 13.

1 is a front view of a dishwasher according to an embodiment of the present invention. It is a perspective view of the dishwasher concerning embodiment of this invention, and shows the state which the upper side door body / lower side door body opened slightly. It is a perspective view of the dishwasher concerning embodiment of this invention, and shows the state which all opened the lower side door body. It is a longitudinal cross-sectional view of the dishwasher concerning embodiment of this invention, and shows the state which the upper side door body / lower side door body opened slightly. In the longitudinal cross-sectional view of the dishwasher concerning embodiment of this invention, the state which the upper side door body / lower side door body has closed is shown. The figure which shows the state which the upper side door body / lower side door body opened slightly in the longitudinal cross-sectional view of the dishwasher concerning embodiment of this invention. The figure which shows the state which opened all the upper side door bodies / lower side door bodies by the longitudinal cross-sectional view of the dishwasher concerning embodiment of this invention. The figure which concerns on embodiment of this invention and shows the relationship between the rib of the outer surface side of a washing tank, a link mechanism, etc. FIG. The figure which concerns on embodiment of this invention and shows washing water outflow suppression which suppresses that washing water flows out of the exterior of a tableware washing machine.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Outer frame of main body, 11 ... Cleaning tank, 12 ... Upper door body, 13 ... Lower door body, 14 ... Rotating spray body, 15 ... Injection hole, 16 ... Front panel, 17 ... Lower support arm member, 18 ... Support substrate, 19 ... lower connection rod, 20 ... upper support arm member, 30 ... support arm member support piece, 31 ... projection base, 32 ... connection means, 33 ... upper connection rod, 34 ... rotation angle regulating stopper 34A ... Upper angle restricting stopper piece, 34B ... Lower angle restricting stopper piece, 35 ... Support spring for supporting piece, 36 ... Engaging projection, 37 ... Pulling spring, 38 ... Link guide groove, 39 ... Handle, 40 DESCRIPTION OF SYMBOLS ... Lock button, 50 ... Door latch, 51 ... Grid-shaped rib, 60 ... Tableware basket, 61 ... Tableware, 70 ... Closing rod, 71 ... Connection long groove, 72 ... Connection pin, 80 ... Relaxation spring, 90 ... Inhibition spring , 100 ... collar part, G ... During, 110 ... sealing member.

Claims (9)

A cleaning tank, an injection means that is provided at the inner bottom of the cleaning tank and injects cleaning water so as to radiate into the cleaning tank, a cleaning pump that pressurizes and supplies the cleaning water to the injection means, and the cleaning tank An upper door body and a lower door body that rotate in the vertical direction to open / close an opening provided on the front surface of the door, and a locking means that locks the closed state of the upper door body / lower door body, In the dishwasher in which the operation of the washing pump stops according to the opening operation of the upper door body / lower door body,
The opening of the upper door body / lower door body has an initial opening stage of slight opening and a fully opening stage of full opening, and the opening state of the initial opening stage and the fully opening stage is maintained,
In the open state of the initial opening stage, a gap is formed between the lower edge of the upper door body and the upper edge of the lower door body,
The dishwasher is characterized in that the gap has a width enough to block the jet of washing water jetted from the jetting means from passing outside. The dishwasher according to claim 1,
A dishwasher characterized in that a brim that prevents the jet flow from reaching the gap is provided so as to extend downward to an inner surface side lower edge of the upper door body. The dishwasher according to claim 1,
The said collar part overlaps the inner surface side lower part of a lower door body in the closed state of the said upper side door body / lower side door body, The dishwasher characterized by the above-mentioned. The dishwasher according to claim 1,
An upper support arm member for supporting the upper door body;
A lower support arm member that supports the lower door body and is rotatably supported directly or indirectly via an interposed member on the cleaning tank side;
A connecting means comprising two connecting rods for connecting the lower support arm member and the upper support arm member and rotatably connected via a rotation connection fulcrum;
One end side is rotatably supported on the cleaning tank side, and a support piece for a supporting arm member whose middle portion is rotatably connected to the upper support arm member via an intermediate rotation connection fulcrum,
A closing rod, one end of which is rotatably connected to the rotation connecting fulcrum of the connecting means, and the other end of which is rotatably and movably connected to the other end of the support arm member support piece;
A rotation angle restricting stopper for restricting the rotation angle of the support arm member support piece to a range between an open side portion and a closed side portion;
After the support arm member support piece that rotates as the upper door body is opened is restricted by the opening side portion of the rotation angle restriction stopper so that it does not rotate any more, the upper support arm member is Rotating in the direction in which the opening of the upper door body progresses around the intermediate rotation connecting fulcrum,
When closing the upper door body, the supporting arm member supporting piece that has stopped at the opening side portion of the rotation angle regulating stopper is pulled back to the closing side portion by the closing rod. . The dishwasher according to claim 4, wherein
The closing rod is provided with a connecting long groove that connects the supporting arm member supporting piece, and a connecting pin that is slidably fitted in the connecting long groove is provided on the supporting arm member supporting piece. Dishwasher. The dishwasher according to claim 5, wherein
The connecting long groove is formed in the longitudinal direction of the closing rod. The dishwasher according to claim 1,
An upper support arm member for supporting the upper door body;
A lower support arm member that supports the lower door body and is rotatably supported directly or indirectly via an interposed member on the cleaning tank side;
A connecting means comprising two connecting rods for connecting the lower support arm member and the upper support arm member and rotatably connected via a rotation connection fulcrum;
One end side is rotatably supported on the cleaning tank side, and a support piece for a supporting arm member whose middle portion is rotatably connected to the upper support arm member via an intermediate rotation connection fulcrum,
A closing rod, one end of which is rotatably connected to the rotation connecting fulcrum of the connecting means, and the other end of which is rotatably and movably connected to the other end of the support arm member support piece;
A rotation angle restricting stopper for restricting the rotation angle of the support arm member support piece to a range between an open side portion and a closed side portion;
A dishwasher provided with a relaxation spring for applying a force in a direction to return to the connecting means moving to the open side when the upper door body and the lower door body are opened. The dishwasher according to claim 7,
The dishwasher according to claim 1, wherein a force in a direction in which the relaxation spring returns is increased as the upper door body and the lower door body are opened. The dishwasher according to claim 7,
A dishwasher characterized in that a tension spring is used as a relaxation spring, and this tension spring is installed between the vicinity of the pivotal connection fulcrum of the coupling means and the washing tank.

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