JP2005058247A - Dish washer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer having a simple structure capable of performing a smooth sliding operation, light opening and shutting operation of an upper door body, and also capable of preventing damage to seal packing. <P>SOLUTION: In the dish washer, a supporting piece 30 for supporting an arm member, which is rotates as the upper door body 12 opens, is regulated by a rotation angle regulating stopper 34 so as to prohibit further rotation. Thereafter, the upper door body 12 is rotated on a rotation linking fulcrum so as to open. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dishwasher used at home.
[0002]
[Prior art]
A conventional dishwasher described in Japanese Patent Laid-Open No. 2003-70712 (Patent Document 1) has a configuration in which a door body is opened so as to rotate upward after being obliquely separated.
[0003]
Moreover, the conventional tableware washing machine described in Unexamined-Japanese-Patent No. 2002-219083 (patent document 2) has the structure which opens an upper door body together after opening a lower door body a little.
[0004]
[Patent Document 1]
JP 2003-70712 A [Patent Document 2]
Japanese Patent Laid-Open No. 2002-219083
[Problems to be solved by the invention]
Since the conventional thing shown in the said patent document 1 is a structure which supports a support arm slidably in two guide grooves arranged side by side, a structure is complicated and it is difficult to employ | adopt as an upper and lower two door bodies. Since the load is received by the two guide grooves, the sliding operation is difficult to be performed smoothly.
[0006]
Since the conventional one shown in Patent Document 2 slides on the main body side when the upper door opens and closes, the opening and closing of the upper door becomes heavy and the seal packing is damaged.
[0007]
The present invention addresses the above problems, and provides a dishwasher that can be expected to have a simple structure, smooth sliding operation, light opening and closing of the upper door body, and hardly cause damage to seal packing. Objective.
[0008]
[Means for Solving the Problems]
The present invention provides an upper door body and a lower door body for opening and closing an opening provided in a cleaning tank, an upper support arm member for supporting the upper door body, a lower door body, and directly on the cleaning tank side. Alternatively, a lower support arm member that is indirectly pivotably supported via an interposition member, a connecting means that connects the lower support arm member and the upper support arm member, and one end side that rotates to the upper support arm member. A support arm member that is rotatably connected via a dynamic connection fulcrum, and the other end of which is rotatably supported on the cleaning tank side;
The support arm member has a rotation angle regulating stopper that regulates the rotation angle of the support arm member within the range of the open side portion and the close side portion, and rotates with the opening of the upper door body. After the support piece is restricted to the opening side portion of the rotation angle restricting stopper so that it does not rotate any more, the upper support arm member shifts to rotation around the intermediate rotation connection fulcrum and the upper door body is released. It is characterized by proceeding.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the present invention will be described from the aspect of configuration along FIGS. 1 to 11 showing the embodiment.
[0010]
First, as shown in FIG. 1, 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.
[0011]
In the lower part of the cleaning tank 11, there is provided a rotary sprayer 14 for spraying 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 a pump and sprayed into the cleaning tank 11 by the rotary sprayer 14, thereby washing dishes. I do.
[0012]
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.
[0013]
As shown in FIG. 2, the lower door body 13 is supported on the cleaning tank 11 side so as to rotate in the vertical direction. Since the lower door body 13 is shorter than the front width, the lower door body 13 protrudes less when it is opened to the front side and can be used in a narrow space. It ’s good. Moreover, since the opened lower door body 13 is placed in a substantially horizontal state, it also serves as a drip tray that drops from the tableware placed in the tableware basket drawn out from the washing tank.
[0014]
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 FIGS. 8 and 9, the support substrate 18 (intervening member) is placed in 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.
[0015]
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.
[0016]
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.
[0017]
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 rotatably connected to one end of the support arm member support piece 30 via a rotation connection fulcrum. The other 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.
[0018]
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.
[0019]
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.
[0020]
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.
[0021]
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.
[0022]
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.
[0023]
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.
[0024]
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.
[0025]
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.
[0026]
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 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.
[0027]
Since there is only one link guide groove 38 on which the moving member of the roller is slidably supported, the configuration is simple.
[0028]
The lower door body 13 includes a handle 39 and a lock button 40 on the front side, and a door latch 50 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 locks so that they cannot be opened until the lock button 40 is pressed to release the engagement of the door latch 50.
[0029]
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. .
[0030]
Next, an embodiment of the present invention will be described from the aspect of operation.
[0031]
FIG. 2 shows a state in which 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.
[0032]
Now, the lock button 40 is pressed to unlock the door latch 50, and the handle 39 is pulled slightly to open the lower door body 13 as shown in FIG. At this stage, only the lower door body 13 is opened, and the upper door body 12 remains closed.
[0033]
That is, 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 opened a little, the upper door body 12 is also opened as shown in FIG. 4, so that the upper door body 12 and the lower door body 13 are fully exposed as shown in FIG. It opens up to open.
[0034]
The opening of the upper door 12 after the initial opening of the lower door 13 described above is achieved simply by additionally extending the initial movement guide 38A in the link guide groove 38 which is a moving member (roller) guide. Therefore, it can be realized with an extremely simple configuration.
[0035]
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. 12 and the lower door 13 are returned to the closed state.
[0036]
As described above, only the lower door body 13 is actuated at the beginning of opening of the upper door body 12 / lower door body 13 or just before the end of closing, between the upper door body 12 and the lower door body 13. The seal packing to be provided 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.
[0037]
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.
[0038]
The opening start operation | movement of the upper side door body 12 is described along FIG. 3 and FIG.
[0039]
In the state shown in FIG. 3 in which the initial opening of the lower door 13 has been completed, the support arm member support piece 30 is positioned on the lower angle restriction stopper piece 34B 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 rotates upward about a fulcrum supported on the cleaning tank 11 side, as shown in FIG. In this way, it moves to a position where it comes into contact with the upper angle regulating stopper piece 34A.
[0040]
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.
[0041]
That is, the upper support arm member 20 rotates more than the center of the rotation connection fulcrum with the support arm member support piece 30, so that the upper door body 12 moves obliquely upward. It turns. By such opening start operation, since the friction between the seal packing provided at the mating portion of the upper door body 12 and the cleaning tank 11 and the upper door body 12 is reduced, the opening operation of the upper door body 12 is light, In addition, it is possible to expect smoothness and low wear of the seal packing.
[0042]
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.
[0043]
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.
[0044]
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.
[0045]
The supporting piece biasing spring 35 will be described with reference to FIGS. 3, 4, and 7.
[0046]
The support piece biasing spring 35 is provided because the operation from the completion of the initial opening of the lower door body 13 (FIG. 3) to the completion of the opening start of the upper door body 12 (FIG. 4) is surely performed. is there.
[0047]
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 as shown in FIG. It is likely that the rotational movement from the lower angle regulating stopper piece 34B side to the upper angle regulating stopper piece 34A side is not performed.
[0048]
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.
[0049]
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. .
[0050]
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.
[0051]
The tension spring 37 will be described with reference to FIGS. 3, 4, and 6.
[0052]
The reason why the tension spring 37 is provided is that the transition from the initial opening completion of the lower door body 13 (FIG. 3) to the opening initial completion of the upper door body 12 (FIG. 4) is performed smoothly.
[0053]
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, as shown in FIG. The upper door 12 side is lowered without being maintained. 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.
[0054]
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). The state as shown in FIG. 4 (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.
[0055]
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.
[0056]
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.
[0057]
The 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.
[0058]
The lower door body 13 is opened and the upper door body 12 is placed in the state shown in FIG. This state is a fully open state. In this fully open state, the opening on the front side of the washing tub 11 is fully open, and the tableware basket 60 is pulled out from the washing tub 11 as shown in FIG. Can be done.
[0059]
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.
[0060]
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.
[0061]
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.
[0062]
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.
[0063]
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.
[0064]
The opening of the upper door body 12 will be described along FIG.
[0065]
After the opening start operation of the upper door body 12 is completed, the support arm member support piece 30 is abutted against the upper angle regulating stopper piece 34B and is suppressed, so that the upper support arm member 20 is supported by the support arm member support piece 30. It turns with a small turning radius around the turning connection fulcrum. Therefore, the opened upper door body 12 comes at the position (A).
[0066]
If the upper support arm member 20 is turned by a large turning radius around the fulcrum of the support arm member support piece 30 without being restrained by the upper angle regulating stopper piece 34B, the upper support arm member 20 is It will come to the position of (b).
[0067]
By making the upper door come in the position (a) in this way, the overall size including when using the dishwasher can be kept compact compared to what comes in the position (b). it can.
[0068]
Moreover, since the upper door body 12 is formed in 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 is compact. Can respond to
[0069]
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.
[0070]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a dishwasher that is simple in structure, can be expected to smoothly slide, and that the upper door body is lightly opened and closed, and that seal packing is hardly damaged.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the whole of a dishwasher according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of a dishwasher according to an embodiment of the present invention, showing a state in which an upper door body / lower door body is closed.
FIG. 3 is a longitudinal sectional view of the dishwasher according to the embodiment of the present invention, showing a state in which the initial opening of the lower door body has begun.
FIG. 4 is a longitudinal sectional view of the dishwasher according to the embodiment of the present invention, and shows a state where the initial opening of the lower door body is completed.
FIG. 5 is a longitudinal sectional view of the dishwasher according to the embodiment of the present invention, and shows a state where the opening of the upper door body / lower door body is completed.
FIG. 6 is a longitudinal sectional view of the dishwasher according to the embodiment of the present invention, and shows an opening / closing operation of the upper door body / lower door body when a tension spring is not provided.
FIG. 7 is a longitudinal sectional view of the dishwasher according to the embodiment of the present invention, and shows the opening / closing operation of the upper door body / lower door body when the supporting piece biasing spring is not provided.
FIG. 8 is a longitudinal sectional view showing an outer surface side of a cleaning tank, a link mechanism and the like according to the embodiment of the present invention.
FIG. 9 is a view related to the embodiment of the present invention and showing a relationship between a rib on the outer surface side of the cleaning tank and a link mechanism and the like.
FIG. 10 is a longitudinal sectional view of the dishwasher according to the embodiment of the present invention, and shows a state where the upper door body / lower door body is opened and the tableware basket is pulled out.
FIG. 11 relates to the embodiment of the present invention and is a diagram for explaining the compaction of the dishwasher.
[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 ... lock button, 50 ... door latch, 51 ... grid-like ribs, 60 ... tableware basket, 61 ... tableware.

Claims (8)

A cleaning tank, an upper door body and a lower door body that open and close an opening provided in the cleaning tank, an upper support arm member that supports the upper door body, the lower door body, and the cleaning chamber A lower support arm member that is rotatably supported directly on the tank side or indirectly via an interposition member, a connecting means for connecting the lower support arm member and the upper support arm member, and one end side of which is A support arm member support piece that is rotatably connected to the upper support arm member via a rotation connection fulcrum, and the other end side of which is rotatably supported on the cleaning tank side, and a support arm member support piece A rotation angle restriction stopper for restricting the rotation angle to a range between the open side part and the closed side part;
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 The tableware washing machine is characterized in that the upper door body is opened by shifting to rotation about the intermediate rotation connecting fulcrum. The dishwasher according to claim 1,
The connecting means has two connecting rods that are rotatably connected via a rotating connecting fulcrum. The dishwasher according to claim 1,
The dishwasher characterized in that the upper door body and the lower door body are opened and closed in the vertical direction. The dishwasher according to claim 1,
The cleaning tank has a convex arc shape at the upper front corner,
The upper door body has an arc shape that follows the arc shape of the washing tub. The dishwasher according to claim 4, wherein
When the upper door body is opened, the upper door body moves in a direction away from the washing tank and then shifts to a rotating operation. The dishwasher according to claim 2,
A dishwasher comprising a support piece biasing spring that biases the support arm member support piece to rotate when the upper door body is opened. The dishwasher according to claim 6, wherein
A dishwasher comprising a pulling spring that draws the vicinity of the pivotal connection fulcrum of the coupling means and the vicinity of the pivotal connection fulcrum of the upper support arm member. The dishwasher according to claim 1,
The upper support arm member, the lower support arm member, the support arm member support piece, and the rotation angle regulating stopper are disposed on the left and right outer sides of the cleaning tank, and the support arm member support piece is disposed on the left and right outer surfaces. A dishwasher characterized in that it is provided with a vibration restraining rib that slidably contacts.

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