TWI645827B - Dishwasher - Google Patents

Abstract

The present invention provides a dishwasher, which has: a casing with an opening on the front surface; a washing tank that can be freely moved in the front-rear direction and has an opening on the upper surface; and a door portion provided on the cleaning tank The front surface can cover the front surface of the casing freely on and off when the cleaning tank is located in the storage position of the casing; a position detection device detects the condition that the cleaning tank is located in the storage position; the cleaning device Tableware stored in the washing tank; a control device that controls a series of washing operations of one of the washing devices, and stops the aforementioned when the position detecting device detects that the washing tank is moved from the storing position The operation of the cleaning device; and the braking device generates a braking force that suppresses the pull-out speed in at least a part from the storage position of the cleaning tank to a predetermined position. Thus, a dishwasher that prevents washing water from flying out of the basket when the washing tank is pulled out can be realized.

Description

Dishwasher Field of invention

The present invention relates to a dishwasher for spraying washing water from a washing nozzle to wash dishes, and more particularly to a built-in dishwasher.

Conventionally, for example, Japanese Patent Application Laid-Open No. 2007-301065 (hereinafter referred to as Patent Document 1) discloses a structure in which, when a user wants to pull out a washing tank during a washing operation, the sprayed washing water is not blocked. Built-in and pull-out dishwasher that will fly out of the sink.

Hereinafter, a conventional dishwasher disclosed in Patent Document 1 will be described using FIG. 8.

Fig. 8 is a side sectional view of a conventional dishwasher.

8 shows a state where the built-in dishwasher of the so-called pull-out method is stored in the system kitchen. In addition, a portion shown by a chain line in FIG. 8 shows a state where the washing tank is pulled out from the main body of the dishwasher.

As shown in FIG. 8, the conventional dishwasher includes at least a dishwasher body 101 opened at the front, a washing tank 102 provided in the dishwasher body 101, and a door portion 102 a. The washing tank 102 has an opening at the top, and is arranged to face forward and backward (toward the dishwasher body 101). The direction of the opening) moves freely. The door part 102a is provided in front of the washing tank 102, and covers the front surface of the dishwasher body 101. The washing tank 102 is provided with a cutlery basket 104 or a washing nozzle 105. The tableware basket 104 wears and stores the cleaned tableware 103. The washing nozzle 105 sprays washing water on the tableware 103 placed in the tableware basket 104 and cleans it.

In the dishwasher body 101 and behind the washing tank 102, a micro switch 106, a gear motor 107, and the like are arranged. The micro switch 106 detects the movement of the washing tank 102 in the forward and backward directions. The gear motor 107 operates to restrict the movement of the cleaning tank 102 to the first restricted position and the second restricted position. In addition, while the movement of the cleaning tank 102 is restricted by the gear motor 107, even if the micro switch 106 detects that the cleaning tank 102 moves from the first restricted position to the second restricted position, it is not released within a predetermined time. Limitation of the cleaning tank 102 of the gear motor 107.

With this configuration, even if the user wants to pull out the washing tank 102 while holding the door handle 102b of the door portion 102a, the washing tank 102 cannot be pulled out further than the second restriction position for at least a predetermined time. Thereby, it is possible to prevent the washing water sprayed from the washing nozzle 105 from flying out of the washing tank 102 or being sprayed to the user.

Next, a conventional dishwasher of a different example disclosed in, for example, Japanese Patent Application Laid-Open No. 2011-206130 (hereinafter referred to as Patent Document 2) will be described using FIG. 9.

Fig. 9 is a side sectional view of an upper portion of a door portion of a conventional dishwasher according to a different example. 9 shows the outline of the door handle 113 that pulls the cleaning tank 111 out, and the door handle switch 115 that hangs the detection hand on the door handle 113.

The dishwasher shown in FIG. 9 is the same as the dishwasher shown in FIG. 8, and includes a washing tank 111 provided in the main body of the dishwasher so as to be movable forward and backward, and a front surface of the washing tank 111. The door section 112 and so on. The dishwasher further includes a lock device (not shown), an AND door handle switch 115, and the like. The door portion 112 includes a door handle 113, a door handle 114, and the like. The door handle 113 is provided on the upper part of the door portion 112, and the user holds the door handle 113 with his hand and pulls the washing tank 111 out. The door handle 114 is provided to rotate freely inside the door handle 113. The locking device can lock the movement in the front-back direction of the washing tank 111 and unlock it. The door handle switch 115 detects the rotation of the door handle lever 114.

Hereinafter, the operation | movement of the said dishwasher is demonstrated concretely.

First, the user wants to pull out the washing tank 111 and hang his hand on the doorknob 113. At this time, the door handle lever 114 is pushed upward, and the shaft 114a is rotated only toward the center by the angle θ1. Thereby, a space for hanging the hand inside the door handle 113 is formed. That is, as long as the user does not rotate the door handle lever 114, a space in which the hand can be hung inside the door handle 113 cannot be formed. Therefore, the washing tank 111 cannot be pulled out forward.

In addition, the door handle switch 115 detects the rotation of the door handle lever 114 when the door handle lever 114 forming a space rotates by an angle θ3 smaller than the angle θ1.

Then, when the door handle switch 115 detects the rotation of the door handle 114, a control device (not shown) unlocks the device. Furthermore, the control device stops the operation of the cleaning pump that sprays the cleaning water from a cleaning nozzle (not shown).

That is, in the above dishwasher, when the user hooks the doorknob with his hand 113. When the door handle lever 114 is rotated by an angle θ3, the lock device is released. However, in order to pull out the cleaning tank 111, in order to rotate the door handle 114 to the angle θ1, it is necessary to hook it by hand again. Therefore, although not too much, time is consumed until the washing tank 111 is pulled out. In addition, during this time, the control device stops the cleaning pump and stops the spray of the cleaning water from the cleaning nozzle. This can prevent the washing water from flying out from the inside of the washing tank 111 to the outside of the machine.

However, in the configuration of the dishwasher described in Patent Document 1, as a method of locking the movement of the washing tank, a gear motor, a solenoid valve, or the like is used. At this time, when a power failure occurs during the operation of the dishwasher, the lock preventing movement of the washing tank cannot be released. Therefore, in the event of a power failure, there must be some countermeasures to enable it to unlock the movement of the washing tank. In addition, the geared motor or solenoid valve that locks the movement of the cleaning tank consumes power, which violates the trend of energy saving. Furthermore, when the user needs to pull out the washing tank in a hurry, when the washing tank is locked, there is a problem that the user may be confused or feel uncomfortable.

Moreover, in the structure of the dishwasher described in patent document 2, when a user pushes a door handle lever, a lock of a locking device can be unlocked and a washing tank can be pulled out. In addition, during the period from the angle θ3 to the angle θ1 when the door handle lever is pushed up, the control device stops the operation of cleaning the pump. Thereby, the user can pull out the washing tank. However, there is usually a slight delay from when the operation of the cleaning pump is stopped until the spraying of the cleaning water from the cleaning nozzle is completely stopped. At this time, there is no problem if the user pulls out the washing tank more slowly than the above time and pulls out slowly. However, when the user hooks the doorknob with his hand and pulls it out of the washing tank in a hurry, he will have a wash. Possibility of jetting of clean water not completely stopped. In this case, it is impossible to prevent the washing water from flying out from the washing tank to the outside of the machine.

That is, the conventional dishwasher configuration has the following problem: it cannot reliably prevent the washing water from the washing tank from flying out of the machine in accordance with various usage methods of the user.

In the washing operation, when the user pulls out the washing tank, the pulling speed of the washing tank can be controlled. Thereby, a dishwasher can be provided, which can prevent the sprayed washing water from flying out of the washing tank and spraying the surroundings.

That is, the dishwasher of the present invention has: a casing with an opening on the front surface; a washing tank that can be freely moved in the front-rear direction and is provided in the casing and has an upper surface opened; and a door portion is provided in the aforementioned cleaning The front surface of the tank, and the front surface of the casing can be freely switched to cover the front surface of the casing when the cleaning tank is located in the storage position of the casing; a position detection device detects the condition that the cleaning tank is located in the storage position; Tableware cleanly stored in the washing tank; a control device that controls a series of washing operations of the washing device, and stops when the position detecting device detects that the washing tank is moved from the storage position The operation of the cleaning device; and the braking device generates a braking force that suppresses a pull-out speed in at least a part from the storage position of the cleaning tank to a predetermined position.

According to this configuration, when the user wants to pull out the washing tank during the washing operation, the braking device can be used to suppress the drawing-out speed of the washing tank. In addition, while the braking device suppresses the drawing-out speed of the washing tank, the control device causes the washing water to The jetting stopped completely. This can prevent the sprayed washing water from flying out of the basket. As a result, a dishwasher with excellent reliability can be realized without spraying the surroundings of the casing or the user with washing water.

1‧‧‧ case

2‧‧‧washing tank

3‧‧‧rail

4‧‧‧ Tableware

5‧‧‧ cutlery basket

6‧‧‧washing device

7‧‧‧Clean pump

8‧‧‧washing nozzle

9‧‧‧ door

9a‧‧‧Decorative board

9b‧‧‧handle

10‧‧‧ Middle cover

10a‧‧‧ connecting rod mechanism

10b‧‧‧ cushion

11‧‧‧Control device

12‧‧‧Operation Department

13‧‧‧Micro Switch

14‧‧‧brake device

15‧‧‧ protrusion

16‧‧‧shell

16a‧‧‧Guide

16c‧‧‧Leading end

16b‧‧‧Detent

17‧‧‧ Shock Absorber

17a‧‧‧ Shock Absorber Rod

17b‧‧‧Shake

18‧‧‧ Undertaking Department

18a, 18b‧‧‧Guide pins

18c‧‧‧Concave

18d‧‧‧Detent

19‧‧‧Spring

20‧‧‧brake device

20a‧‧‧Compression Shock Absorber

20b‧‧‧ shock absorber lever

20c‧‧‧rotation axis

21‧‧‧roller

22‧‧‧ abutment

22a, 22c ‧ ‧ ‧ horizontal

22b‧‧‧inclined

101‧‧‧Dishwasher body

102‧‧‧washing tank

102a‧‧‧door

102b‧‧‧door handle

103‧‧‧Tableware

104‧‧‧ Cutlery Basket

105‧‧‧washing nozzle

106‧‧‧Micro Switch

107‧‧‧ Gear Motor

111‧‧‧washing tank

112‧‧‧ Door

113‧‧‧door handle

114‧‧‧Door lever

114a‧‧‧axis

115‧‧‧door handle switch

θ1, θ3‧‧‧angle

K‧‧‧System Kitchen

FIG. 1 is a schematic side sectional view showing a state in which a washing tank of a dishwasher according to Embodiment 1 of the present invention is housed in a casing.

FIG. 2 is a schematic side sectional view showing a state where a washing tank of the dishwasher of the same embodiment is pulled out from a casing to a predetermined position.

FIG. 3 is a schematic side sectional view showing a state in which a washing tank of the dishwasher of the same embodiment is pulled out from a casing and passes a predetermined position.

Fig. 4 is a schematic diagram showing the structure of a braking device of the dishwasher in the same embodiment.

Fig. 5 is a schematic diagram showing the structure of a braking device of the dishwasher in the same embodiment.

Fig. 6 is a schematic side sectional view of a dishwasher according to a second embodiment of the present invention.

Fig. 7 is a schematic diagram showing the structure of a braking device of a dishwasher in the same embodiment.

Fig. 8 is a side sectional view of a conventional dishwasher.

Fig. 9 is a side sectional view of an upper portion of a door portion of a conventional dishwasher according to a different example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiments.

(Embodiment 1)

Hereinafter, a dishwasher according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3. In this embodiment, the built-in dishwasher with a pull-out method is stored in the system kitchen as an example for explanation, but needless to say, it is not limited to this.

FIG. 1 is a schematic side sectional view showing a state in which a washing tank of a dishwasher according to Embodiment 1 of the present invention is housed in a casing. FIG. 2 is a schematic side sectional view showing a state where a washing tank of the dishwasher of the same embodiment is pulled out from a casing to a predetermined position. FIG. 3 is a schematic side sectional view showing a state in which a washing tank of the dishwasher of the same embodiment is pulled out from a casing and passes a predetermined position. In the present embodiment, a position where the washing tank shown in FIG. 1 is completely stored in the casing will be described as a “storage position”. Further, in FIGS. 1 to 3, the left direction on the drawing will be described as the drawing-out direction of the washing tank. The following drawings are also the same.

As shown in FIG. 1 to FIG. 3, the dishwasher according to this embodiment includes a casing 1 formed in a box shape and having an open front surface, and a washing device provided inside the casing 1 to move freely in the front-rear direction and having an open upper surface Net trough 2. The dishwasher is stored in the system kitchen K.

The washing tank 2 is suspended from the guide rails 3 arranged horizontally on the inner sides of the two side walls of the casing 1 and is configured to be moved in the front-back direction with a small force. Thereby, the user can easily pull the washing tank 2 out of the casing 1 or push it in the casing 1. Further, the washing tank 2 includes a tableware basket 5 that houses the tableware 4 in a neatly arranged arrangement, and a cleaning device 6 that sprays and cleans the tableware 4 with washing water. The washing device 6 further comprises: washing water from the feed water to the washing tank 2 The circulating washing pump 7 and the washing nozzle 8 which sprays the washing water pressure-fed by the washing pump 7 toward the tableware 4 etc. are comprised.

The door portion 9 is provided as a free switch in front of the washing tank 2, and covers the front surface of the housing 1 when the washing tank 2 is in a storage position pushed into and accommodated inside the housing 1. In addition, the door portion 9 is fully installed with a decorative plate 9a of the same type as the door piece or drawer of the system kitchen K in which the dishwasher is stored. Furthermore, the door part 9 has a handle 9b. The handle 9b is used when a user grasps and pulls the washing tank 2 out of the casing 1, or pushes it into the casing 1. Moreover, the handle 9b is also constructed with the same pattern as the door panel or drawer of the system kitchen K.

In addition, most of the door parts of the conventional dishwasher are equipped with a decorative plate of the same style as the door of the system kitchen, but generally, the style of the handle is different. Specifically, as described above, the conventional door portion includes a lever or the like for unlocking a door handle lever or the like. Furthermore, an operation switch, a running light, etc. are arrange | positioned in a door part.

However, since the dishwasher of the present embodiment is not provided with an operation lever, an operation switch, an operation lamp, or the like in the door portion, the style of the door portion 9 can be configured with the same style as the system kitchen. As a result, it is not easy to judge whether the dishwasher is stored in the system kitchen at a glance, and it can be a structure with excellent uniformity.

In addition, the middle cover 10 is provided on the upper part of the inside of the casing 1 and closes the opening on the upper surface of the washing tank 2. The middle cover 10 is provided with a pad 10 b on a surface facing the opening of the washing tank 2, and is arranged to move up and down freely by a pair of left and right link mechanisms 10 a including a pair of front and rear links. In addition, the middle cover 10 moves up and down through the link mechanism 10a according to the forward and backward movement of the washing tank 2. For example, When the washing tank 2 is located at the storage position, the upper surface opening is closed.

The control device 11 is provided between the washing tank 2 and the door 9 and controls a series of washing operations such as a washing step, a flushing step, and a drying step of the dishwasher.

The operation unit 12 is provided above the control device 11, and the user performs a series of operation settings and the like.

The micro switch 13 which is a position detection device is disposed inside the housing 1 (the side opposite to the door portion 9), and detects the situation where the washing tank 2 is pulled out and moved from the storage position. The micro switch 13 is connected to the control device 11. In addition, when the movement of the washing tank 2 from the storage position is detected by the micro switch 13, the control device 11 controls to stop the operation of the washing pump 7.

The brake device 14 is provided on the inner side surface of the housing 1, for example, and generates a braking force that suppresses the pull-out speed of the washing tank 2. At this time, the side of the washing tank 2 is provided with a protruding portion 15 that cooperates with the braking device 14.

Specifically, in the brake device 14, when the washing tank 2 is pulled out from the storage position, a braking force that suppresses the drawing-out speed of the washing tank 2 is generated at least a part from the storage position to a predetermined position. The predetermined position is not particularly limited, but in this embodiment, for example, a position where the washing water sprayed from the washing nozzle 8 does not fly out of the casing 1 is taken as the predetermined position. Specific locations will be described later. That is, as described above, when the predetermined position is set, the position of the washing tank 2 where the washing water does not fly out of the casing 1 becomes clear. Thereby, for example, when the washing tank 2 is pulled out to a predetermined position, the braking device 14 can be used to apply a required braking force to the washing tank 2. As a result, the washing water from the washing tank 2 can be reliably prevented from flying out.

Hereinafter, the braking device of the dishwasher according to this embodiment will be described using FIGS. 4 and 5.

4 and 5 are schematic diagrams showing the internal structure of the braking device of the dishwasher in the same embodiment. FIG. 4 shows the state of the brake device in a state where the washing tank shown in FIG. 1 is housed in the casing. That is, the state of the brake device 14 when the washing tank 2 is located in the storage position is shown. FIG. 5 shows a state of the braking device in a state where the washing tank shown in FIG. 2 is pulled out from the casing to a predetermined position.

As shown in FIGS. 4 and 5, the braking device 14 is configured by a housing 16, a receiving portion 18, a spring 19, and the like that engage the damper 17 and the protruding portion 15 inside the housing 16. Further, a guide portion 16 a that guides the movement of the receiving portion 18 is formed on a side surface of the housing 16.

The shock absorber 17 has a shock absorber tie rod 17a which enters and exits in the moving direction of the washing tank 2, and is configured as a tensile shock absorber that generates a braking force only in one direction. That is, the damper 17 generates a braking force when the damper lever 17a is pulled out. On the other hand, when the damper lever 17a is pushed in, no braking force is generated.

The receiving portion 18 of the brake device 14 uses the front end of the shock absorber lever 17a as a swing shaft 17b, and is mounted to swing freely in parallel with the side of the casing 1. The receiving portion 18 includes, for example, two guide pins 18a and 18b which are engaged with the guide portion 16a. Thereby, the receiving part 18 and the guide part 16a engage, and move along the guide part 16a. Further, the receiving portion 18 has a recessed portion 18 c recessed on the lower side, and the recessed portion 18 c is configured to receive the protruding portion 15 provided in the washing tank 2.

The guide portion 16 a has a J-shape that is bent upward on the side of the opposite end portion 16 c where the shock absorber 17 is arranged, and is formed on the side surface of the casing 16.

The spring 19 of the brake device 14 is formed of, for example, a tension spring. One end of the spring 19 is locked with a locking portion 16 b provided in the housing 16. The other end of the spring 19 is locked at an upper portion than the swing shaft 17 b with a locking portion 18 d provided in the receiving portion 18. At this time, the tension of the spring 19 is always applied to the locking portion 18d, and is applied in a direction of pushing into the damper lever 17a. This can prevent the receiving portion 18 from vibrating in the guide portion 16a. Furthermore, the tension of the spring 19 acts to reduce or eliminate the resistance in the pushing direction in which the braking force of the damper 17 does not occur.

That is, as shown in FIG. 4, in a state where the washing tank 2 is stored in the storage position, the shock absorber lever 17 a is pushed into the shock absorber 17. At this time, the protruding portion 15 is housed in the recessed portion 18 c of the receiving portion 18.

On the other hand, as shown in FIG. 5, when the washing tank 2 is pulled out, the receiving portion 18 moves in the pulling direction together with the protruding portion 15. Specifically, the receiving portion 18 moves along the guide portion 16 a by the movement of the protruding portion 15. At this time, the guide pin 18a on the pull-out side moves upward by the bending of the J-shaped guide portion 16a. Thereby, the receiving portion 18 is inclined, and the engagement between the protruding portion 15 and the recessed portion 18 c provided in the washing tank 2 is released. At this time, the spring 19 becomes an elongated state. However, the receiving portion 18 is locked by the curved ends of the guide pin 18a and the guide portion 16a due to the rotational force received by the spring 19. In addition, together with the receiving portion 18, the guide pin 18a is held in the aforementioned locked state.

As mentioned above, the dishwasher of this embodiment is comprised.

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

First, the user grasps the handle 9b provided on the door 9 to wash The slot 2 is pulled out. Next, the tableware 4 is arrange | positioned in the tableware basket 5, and a lotion is put. After that, the user selects an operation plan using a plan selection button located in the operation section 12, and depresses the operation start button.

Then, the washing tank 2 is pushed into the storage position in the casing 1. At this time, the middle cover 10 is moved backward and downward by the link mechanism 10a, and the opening of the washing tank 2 is closed. At the same time, the micro-switch 13 which is a position detection device is used to detect that the cleaning tank 2 is located at the storage position. And, the detection signal detected by the micro switch 13 is transmitted to the control device 11. As a result, the control device 11 starts the washing operation of the dishwasher.

Next, when the washing operation is started, the control device 11 opens a water supply valve (not shown) and feeds tap water of the washing water into the washing tank 2. Further, the control device 11 performs control such that the washing pump 7 is driven by applying electric current to a heater (not shown) and heating the washing water. Thereby, the dishwashing machine performs a series of washing operation | movement which wash | cleans the tableware 4 accommodated in the washing tank 2.

In addition, as described above, the dishwashing mechanism of this embodiment causes the user to put the dishware 4 in and out during the washing operation. At this time, during the cleaning operation, the user grasps the handle 9b provided on the door portion 9 of the cleaning tank 2 and pulls the cleaning tank 2 out.

The operation and action when the washing tank 2 is pulled out during the washing operation will be described below.

First, when the washing tank 2 is pulled out during the washing operation, the micro switch 13 detects the movement of the washing tank 2 from the storage position. In addition, if it is during the washing step or the flushing step in which the washing water is sprayed, the control device 11 immediately stops energizing the washing pump 7. At this time, the washing pump 7 will wash the water The pressure is fed toward the cleaning nozzle 8. Therefore, even if the power supply to the cleaning pump 7 is stopped, the discharge of the cleaning water from the cleaning nozzle 8 will not stop immediately due to the residual pressure or inertial force. That is, although the energization of the washing pump 7 is stopped for a short time, the washing water sprayed from the washing nozzle 8 will stop completely after a certain period of time.

At this time, usually, the opening on the upper surface of the washing tank 2 is closed by the middle cover 10. Therefore, at the initial stage when the washing tank 2 is pulled out, even if the middle cover 10 is moved upward, the washing tank 2 can be sealed by the elasticity of the gasket 10b. That is, while the gasket 10b exhibits a sealing effect, the washing water does not leak out.

As shown in FIG. 2, at least when the front end of the washing tank 2 is not pulled out more forward than the front end of the housing 1, the washing water sprayed from the washing nozzle 8 does not fly out of the housing 1. Out of the situation.

In this embodiment, as described above, the position where the front end of the washing tank 2 is pulled out to the front end of the casing 1 is taken as the predetermined position. Thereby, the above-mentioned predetermined position becomes quite clear as a position of the washing tank 2 where the washing water does not fly out of the casing 1.

Therefore, in this embodiment, as will be specifically described below, the washing water is prevented from flying out based on the moving time of the washing tank 2 to the predetermined position.

First, the time from when the micro switch 13 detects that the movement of the washing tank 2 to the stop of the discharge of the washing water from the washing nozzle 8 by the user's pulling out is taken as the stop time. Furthermore, the moving time until the washing tank 2 is pulled out to a predetermined position is taken as the pulling time. In addition, the braking device is used to control the pull-out time of the cleaning tank 2 so that the stop time is the same as the pull-out time or to make the pull-out time Out time is longer than stop time. This prevents the washing water from flying out of the casing 1 in advance.

That is, the braking device 14 of the washing tank 2 controls the above-mentioned pull-out time by using the braking force of the damper 17. Specifically, when the braking device 14 is pulled out from the storage position, the braking device 14 generates a braking force and controls the pull-out time of the cleaning tank 2 so that it takes more than a predetermined time from the storage position to the predetermined position.

Next, the operation of the brake device 14 according to this embodiment will be described in detail with reference to FIGS. 4 and 5.

As shown in FIG. 4, when the washing tank 2 is pulled out from the storage position A, the protruding portion 15 provided in the washing tank 2 moves in the pulling direction. Then, after the protruding portion 15 described later is moved from the storage position A to a position B that abuts the recessed portion 18 c of the receiving portion 18, the receiving portion 18 is further extended and moved toward the protruding portion 15. In addition, the shock absorber 17 uses the recessed portion 18 c that moves with the receiving portion 18 to pull out the shock absorber lever 17 a to generate a braking force. However, the braking force generated becomes larger as the user pulls the washing tank 2 harder. On the other hand, when the shock absorber lever 17a is gently pulled out, a large braking force is not generated.

At this time, in this embodiment, as shown in FIG. 4, the width W1 of the recessed portion 18 c of the receiving portion 18 is made larger than the width W2 of the protruding portion 15. Accordingly, when the operation from the storage position A to the position B is started, the protruding portion 15 does not move the receiving portion 18. Therefore, the braking force of the shock absorber 17 is not generated. Thereby, an increase in the force when the user pulls out the washing tank 2 does not occur at the initial stage when the maximum force is required. As a result, the user's feeling of use at the time of pulling out the washing tank 2 is not impaired, and the washing tank 2 can be pulled out without being disturbed.

Moreover, as shown in FIG. 5, together with the movement of the protruding portion 15, when the receiving portion 18 reaches the pull-out side end of the guide portion 16 a, it will fit the curved shape of the J-shaped guide portion 16 a and the receiving portion 18 will tilt. As a result, the engagement between the recessed portion 18c and the protruding portion 15 is released. In addition, after the locking is released, the cleaning tank 2 and the braking device 14 are not related, and they are smoothly pulled out along the guide rail 3 shown in FIGS. 1 to 3. At this time, the receiving portion 18 is maintained in an inclined state as shown in FIG. 5 by the tension of the spring 19.

The brake device 14 operates as described above.

That is, while the washing tank 2 is pulled out from the position B shown in FIG. 4 to the predetermined position C shown in FIG. 5, the braking force of the damper 17 of the brake device 14 acts on the washing tank 2. Moreover, even after the washing tank 2 is pulled out after the predetermined position C, the brake device 14 does not work at all.

On the other hand, when the washing tank 2 is pushed into the housing 1 on the contrary, the protruding portion 15 of the washing tank 2 is housed in the recessed portion 18c of the receiving portion 18 held in an inclined state when pulled out. In addition, the receiving portion 18 that comes into contact with the protruding portion 15 returns to the storage position simultaneously with the washing tank 2. At this time, as described above, the damper 17 does not generate a braking force, and the tension of the spring 19 acts on the receiving portion 18.

In addition, the magnitude of the braking force of the damper 17 may be set to the stopping time of the washing water, the same as the pulling time of the washing tank 2, or the pulling time longer than the stopping time.

The stop time from the start of detection by the micro-switch 13 to the stop of the discharge of the washing water from the washing nozzle 8 is usually about 0.4 seconds, for example. The predetermined size from the storage position of the washing tank 2 to the predetermined position of the washing tank 2 shown in FIG. 2 is, for example, 30 mm. Therefore, in this embodiment, the washing tank 2 is made The predetermined time from the storage position to the predetermined position is 0.5 seconds. The predetermined time is not limited to this, and may be arbitrarily set as long as it is equal to or longer than the discharge stop time of the washing water. With this, it is possible to predict the stop time until the discharge of the washing water from the washing nozzle 8 is stopped, and when the washing tank 2 is pulled out, the required braking force is applied. As a result, the washing water can be reliably prevented from flying out of the washing tank 2.

Here, in JIS S1200: 2012, the average moving distance of the pull-out switch recommended in the pull-out durability test of the storage unit is 0.25 ± 0.1 m per second. That is, the average speed of pulling out the switch is 0.15m / s ~ 0.35m / s. The average time for moving the predetermined size by 30 mm is 0.2 to 0.09 seconds.

However, in reality, when the user pulls out the washing tank 2 of the dishwasher, the weight of the washing tank 2 will be greater than the weight of the drawer of the storage unit, and there will be tension of the spring 19 of the braking device 14. Therefore, an actual dishwasher is provided with a pull-in device for a drawer (not shown). Therefore, when the washing tank 2 of the dishwasher is actually pulled out, the pull-out resistance is increased more than the JIS storage unit. Therefore, in reality, the pull-out time of the washing tank 2 becomes slightly longer. Therefore, in this embodiment, the predetermined time for the washing tank 2 to reach the predetermined position from the storage position is 0.5 seconds or more regardless of the drawing speed. In addition, the braking force of the braking device 14 is set to be as close as possible to a predetermined time. In addition, the braking force of the braking device 14 will be greater according to the speed change, and the faster the pull-out speed of the washing tank 2 becomes, the slower the pull-out speed will become smaller. Thereby, when the drawing-out speed of the washing tank 2 is relatively slow, the braking force is reduced, thereby suppressing the meaningless extension of the drawing-out time.

As described above, the dishwasher according to this embodiment includes the brake device 14 that generates a braking force that suppresses the pull-out speed from at least a part of the storage position to a predetermined position when the washing tank 2 is pulled out from the storage position. In addition, when the user wants to pull out the washing tank 2 during the washing operation, the braking device 14 may inhibit the pulling speed of the washing tank 2. Thereby, the spraying of the washing water can be stopped completely while the washing tank 2 is pulled out to a predetermined position. As a result, it is possible to prevent the washing water sprayed from the washing nozzle from flying out of the casing 1, and more reliably prevent the washing water from being sprayed around the surroundings.

In addition, the shock absorber 17 for a dishwasher of the present embodiment constitutes a brake device 14. With this, energy consumption can be improved without consuming power. Furthermore, when the user wants to pull out the washing tank 2 urgently, the braking device 14 will only act on the movement of the washing tank 2 by the braking force, and will not lock the movement of the washing tank 2. Therefore, there is no confusion or discomfort for the user due to the locking of the washing tank 2 or the like. Furthermore, the damper 17 of the braking device 14 generates a braking force only in the direction in which the washing tank 2 is pulled out. Therefore, when the washing tank 2 is pushed into the housing 1 and stored, the user does not need to apply extra force. Thereby, the washing tank 2 can be accommodated smoothly.

In addition, the dishwasher of this embodiment changes the braking force generated by the braking device 14 according to the drawing speed of the washing tank 2. Therefore, when the washing tank 2 is gently pulled out, the generation of braking force can be suppressed, so the user does not need to apply extra force. With this, it is possible to suppress a situation in which the pull-out time of the washing tank 2 is meaninglessly extended. On the contrary, when the washing tank 2 is pulled out strongly, the braking device 14 generates a large braking force, and the pull-out time of the washing tank 2 is adjusted to a predetermined time or more. That is, corresponding to various uses of the user Adjust the pull-out speed to prevent the washing water from flying out of the casing 1. Therefore, for the user, a dishwasher with improved usability can be provided.

In addition, the dishwasher of the present embodiment can be constructed by fitting the decorative plate of the door portion 9 and the handle to the door plate of the system kitchen. That is, in the conventional dishwasher, the decorative plate part is in accordance with the style of the door of the system kitchen, but as for the handle, it is constituted by the unique style of the dishwasher. However, the door portion 9 of this embodiment does not need to have a handle function. Therefore, the style of the kitchen door piece of the whole matching system in which the decorative plate 9a and the handle 9b of the door 9 are combined can be made. In this way, it can be constructed with the style integrated with the system kitchen. As a result, the design of the system kitchen can be improved.

In the present embodiment, an example in which the position of the damper 17 with respect to the guide portion 16a in the braking device 14 is provided on the side opposite to the direction in which the washing tank 2 is pulled out is described, but it is not limited to this. For example, the position of the shock absorber 17 may be a pull-out direction side, or may be an upper side or a lower side. Furthermore, the shock absorber 17 can be installed obliquely. As a result, the freedom of design will be improved.

In this embodiment, an example in which a tensile damper is used as the damper 17 of the brake device 14 is described, but the invention is not limited to this. For example, it may be configured using a compression damper. At this time, as described above, the position of the shock absorber 17 is reversed and placed on the pull-out side. Furthermore, a rotary damper, a rack, and a pinion can be used. That is, as long as the shock absorber generates an appropriate braking force when the washing tank 2 is pulled out, the type or configuration of the shock absorber is not particularly limited.

In the present embodiment, a configuration in which the protruding portion 15 is provided in the washing tank 2 and locked under the braking device 14 is described as an example. Not limited to this. For example, the brake device 14 shown in FIG. 4 and FIG. 5 can be reversed up and down, and the protrusion 15 can be locked above the brake device 14. Thereby, the same effect can be obtained.

Moreover, in this embodiment, although the example which comprised the braking device 14 and the protrusion part 15 in the back part of the inner side surface of the housing 1 was demonstrated, it is not limited to this. For example, it can be set as the structure provided in the front part of the side surface in the housing 1. Therefore, when a bad situation of the braking device 14 occurs, the user can adjust the bad situation of the braking device 14 from the front surface of the casing 1 himself. An unfavorable situation is when the receiving portion 18 of the brake device 14 changes from the originally inclined position shown in FIG. 5 to the storage position shown in FIG. 4 when the washing tank 2 is pulled out, etc. It is easy to return the receiving portion 18 to the original inclined position to eliminate the problem.

In this embodiment, an example has been described in which the braking device 14 is mounted on either of the left and right side surfaces of the housing 1, but the invention is not limited to this. For example, when more braking force is required, the braking devices can be installed on both the left and right sides.

In this embodiment, an example has been described in which the braking device 14 is mounted on the side of the casing 1 and the protruding portion 15 is mounted on the outside of the side wall of the washing tank 2, but it is not limited thereto. For example, the braking device 14 can be mounted on the side of the washing tank 2 and the protruding portion 15 can be mounted on the inside of the side wall of the casing 1. By the same operation, the same effect can be obtained.

(Embodiment 2)

The configuration of the dishwasher according to the second embodiment of the present invention will be described below with reference to FIGS. 6 and 7.

Fig. 6 is a side view of a dishwasher according to a second embodiment of the present invention Schematic cross-section.

Fig. 7 is a schematic diagram showing the structure of a braking device of a dishwasher in the same embodiment.

As shown in FIGS. 6 and 7, in the dishwasher of this embodiment, the configuration of the braking device is different from that of the first embodiment. In addition, since the configuration, operation, and effect other than the braking device are the same as those of the first embodiment, detailed description is omitted.

That is, the brake device 20 of the present embodiment is constituted by, for example, a compression damper 20a having a damper lever 20b fixed in the longitudinal direction on the inner side wall of the casing 1. The damper lever 20b has a rotation shaft 20c at the front end, and a roller 21 that is rotatably abutted on a contact surface 22 described below on the rotation shaft 20c. However, the braking device 20 of this embodiment is configured so that the braking force of the damper lever 20b is not generated in the pulling direction.

The abutment surface 22 is formed in a band shape on the side wall of the washing tank 2 from the door portion 9 side toward the rear. The abutment surface 22 abuts the outer peripheral surface of the roller 21 of the brake device 20, and together with the movement of the washing tank 2, moves the roller 21 in the vertical direction and generates a braking force of the compression damper 20a. In addition, the abutting surface 22 is constituted by the horizontal surface 22a, the inclined surface 22b, and the horizontal surface 22c from the door portion 9 side. The horizontal plane 22a of the abutment surface 22 is horizontal when the cleaning tank 2 shown in FIG. 6 is located in the storage position inside the casing 1 (the same as the cleaning tank position of FIG. 1), near the position A where the roller 21 abuts. The ground is formed at the lowest position. When the inclined surface 22b of the abutment surface 22 is slightly pulled out of the cleaning tank 2, the roller 21 is inclined upward from the abutting position B to the position C (equivalent to the position of the cleaning tank in FIG. 2) (compressing the shock absorber) Direction of the tie rod 20b). In addition, the inclined surface 22b and the washing tank shown in FIG. The area where the position B near the nano position moves to a predetermined position shown by the position C is equivalent. Further, the horizontal plane 22c of the abutment surface 22 is formed at the highest position, and is formed horizontally from the position B to the position D where the washing tank 2 is completely pulled out. The horizontal plane 22c corresponds to the position of the area where the washing tank is moved in FIG. 3 described in the first embodiment.

When the washing tank 2 is pulled out from the storage position, the braking device 20 generates a braking force to move from the storage position (position A) to a predetermined position (position C), which takes more than a predetermined time. The magnitude of the braking force of the compression damper 20a is the same as that of the first embodiment.

Next, the operation of the brake device 20 according to this embodiment will be specifically described with reference to FIGS. 6 and 7.

As shown in FIGS. 6 and 7, when the washing tank 2 is pulled out from the storage position (position A), the abutting surface 22 provided in the washing tank 2 moves in the pulling direction. At this time, the roller 21 of the braking device 20 rotates on the horizontal surface 22 a of the abutting surface 22 and moves. In addition, from the contact position A to the position B, when the operation of the cleaning tank 2 is started, the horizontal surface 22a of the contact surface 22 is moved. During this period, the roller 21 does not push the damper lever 20b into the compression damper 20a. Therefore, the braking force of the compression damper 20a is not generated. Thereby, the increase in the power when the user pulls out the washing tank 2 in the initial period that requires the maximum power does not occur. As a result, when the washing tank 2 is pulled out, the user's feeling of use is not impaired, and the washing tank 2 can be pulled out without discomfort.

In addition, the roller 21 moves on the inclined surface 22b of the abutment surface 22 from the position B to the position C together with the drawing of the washing tank 2. At this time, the compression damper 20a is pushed into the damper by the roller 21 rotating on the abutment surface 22 and moving. The lever 20b is pulled to generate a braking force. In addition, when the user wants to pull out the washing tank 2 harder, the braking force is pushed in harder by the shock absorber lever 20b, which becomes larger. On the other hand, when the shock absorber lever 20b is gently pulled out, a large braking force is not generated.

Furthermore, the roller 21 moves on the horizontal surface 22c of the contact surface 22 from the position C to the position D together with the drawing of the washing tank 2. At this time, the roller 21 does not push the damper lever 20b into the compression damper 20a. Therefore, the braking force of the compression damper 20a does not occur. In addition, the rotation resistance of the roller 21 abutted by the abutment surface 22 is slight compared with the resistance of the weight felt by the user when pulling out the washing tank 2. Therefore, there is no problem such as a sense of disobedience to the user.

That is, the braking force of the compression damper 20a of the brake device 20 acts on the washing tank 2 only while the washing tank 2 is pulled out from the position B to the position C. Conversely, when the drawn-out washing tank 2 is pushed into the casing 1, the compression damper 20a will follow the inclined surface 22b of the abutment surface 22, and the damper lever 20b will be pulled from the compression damper 20a. Pull out. Therefore, the braking device 20 does not generate a braking force. The method of pulling out the shock absorber lever 20b may be a configuration in which the compression spring (not shown) attached or the weight of the shock absorber lever 20b and the roller 21 is used to pull out. That is, there is no particular limitation on the configuration of pulling out the damper lever 20b without generating a braking force.

In the present embodiment, the structure in which the shock absorber lever 20b and the abutment surface 22 are rotated and abutted by the roller 21 has been described as an example, but it is not limited to this. For example, the front end of the shock absorber lever 20b may be configured to slide the abutment surface 22. At this time, the sliding resistance between the abutting surface 22 and the shock absorber lever 20b should be It is less than the degree of giving a sense of discomfort to the user.

As described above, the dishwasher of the present invention includes a casing with an open front surface, a cleaning tank provided in the casing to move freely in the front-rear direction and an open upper surface, and a front surface of the cleaning tank and a When the washing tank is located in the storage position of the casing, the door portion of the front surface of the casing can be opened and closed freely. It also includes a position detection device that detects that the cleaning tank is located in the storage position, a cleaning device that cleans tableware stored in the cleaning tank, and a series of cleaning operations that control one of the cleaning devices and detects when the position detection device detects A control device that stops the operation of the cleaning device when the cleaning tank is moved from the storage position. Furthermore, a braking device may be provided that generates a braking force that suppresses the pull-out speed in at least a part from the storage position of the washing tank to a predetermined position.

According to this configuration, when the user wants to pull out the washing tank during the washing operation, the braking device can be used to suppress the drawing-out speed of the washing tank. In addition, while the braking device suppresses the drawing-out speed of the washing tank, the braking device completely stops the spraying of the washing water. This prevents the sprayed washing water from flying out of the basket. As a result, a dishwasher with excellent reliability can be realized without spraying the surroundings of the casing or the user with washing water.

In addition, the predetermined position of the dishwasher of the present invention may be a position where the washing water sprayed from the washing nozzle included in the washing device does not fly out of the basket. This makes it possible to clarify the position of the washing tank where the washing water does not fly out of the basket. As a result, when the washing tank is pulled out, a required braking force is applied to reliably prevent the washing water from flying out.

In addition, the brake device of the dishwasher of the present invention is only required to produce a brake The power is such that when the washing tank is pulled out from the storage position, it may take more than a predetermined time from the storage position to the predetermined position. Thereby, when the washing tank is pulled out, the required braking force can be applied and the pulling-out speed can be suppressed. As a result, the washing-out water from the washing tank can be reliably prevented from flying out.

In addition, the predetermined time of the dishwasher of the present invention may be any time from the start of the movement of the washing tank detected by the position detection device to the stop of the spray of the washing water from the washing nozzle. Thereby, the stop time until the discharge of the washing water from the washing nozzle is stopped can be predicted, and the required braking force can be applied when the washing tank is pulled out. As a result, the drawing-out speed of the washing tank can be suppressed, and flying-out of the washing water can be reliably prevented.

In addition, the braking device of the dishwasher of the present invention can change the braking force according to the speed of pulling out the washing tank. Therefore, when the washing tank is gently pulled out, the user does not need extra force. Furthermore, it is possible to suppress the meaninglessly long pull-out time in advance. On the other hand, when the washing tank is pulled out strongly, the braking device generates a large braking force, and the movement of the washing tank is controlled to be longer than the stop time of the washing water. That is, according to the various usage methods of the user, the drawing-out speed of the washing tank can be adjusted. As a result, the washing water can be prevented from flying out of the machine, and the usability can be improved.

In addition, the braking device of the dishwasher of the present invention can be controlled so that no braking force is generated when the operation is started from the storage position of the washing tank. Thereby, in the initial period when the maximum force is required, the increase of the force when the user pulls out the washing tank does not occur. As a result, the feeling of use of the user can be prevented from being impaired.

Moreover, the dishwasher of this invention can be comprised by the brake device using a damper. As a result, no power is consumed. Also, the user urgently pulled out and washed When cleaning the tank, only the braking force can be applied to the movement of the cleaning tank. That is, since the washing device is not locked, it is possible to prevent the user from being confused or unpleasant.

In addition, the shock absorber of the dishwasher of the present invention need only generate a braking force in a direction in which the washing tank is pulled out. Thereby, the user does not need extra force when pushing into the washing tank. As a result, the user can store the washing device in the casing without feeling uncomfortable.

In addition, the door portion of the dishwasher of the present invention can be configured by attaching a handle and a decorative plate that match the specifications of the system kitchen door piece to be stored. With this, integration with the system kitchen will improve the design of the system kitchen.

Claims (8)

A dishwasher has a basket body with an opening on the front surface, a washing tank that can be freely moved in the front-rear direction and an upper surface having an opening, and a door portion on the front surface of the washing tank. When the washing tank is located in the storage position of the housing, the front surface of the housing can be freely opened and closed; a position detection device detects the situation that the washing tank is located in the storage position; the washing device is cleaned and stored in the storage position; Tableware in the washing tank; a control device that controls a series of washing operations of one of the washing devices, and stops the washing device when the position detecting device detects that the washing tank moves from the storage position And a braking device that generates a braking force that suppresses a pull-out speed in at least a portion from the storage position of the cleaning tank to a predetermined position, wherein the braking device generates the braking force such that the When the storage position is pulled out, it takes more than a predetermined time from the storage position to the predetermined position. The dishwasher of claim 1, wherein the predetermined position is a position at which the washing water sprayed from the washing nozzle included in the washing device does not fly out of the outside of the basket. The dishwasher according to claim 1, wherein the predetermined time is a time from when the position detecting device detects the movement of the washing tank to when the spraying of the washing water from the washing nozzle included in the washing device stops. For example, the dishwasher of claim 1, wherein the braking device changes the braking force according to the speed with which the washing tank is pulled out. In the dishwasher of claim 1, wherein the braking device is controlled so that the braking force is not generated when the operation of the washing tank from the storage position is started. The dishwasher according to claim 1, wherein the braking device is composed of a shock absorber. The dishwasher of claim 6, wherein the shock absorber generates the braking force only in a direction in which the washing tank is pulled out. The dishwasher of claim 1, wherein the aforementioned door portion is configured to be able to install a handle and a decorative plate that fit the pattern of the door of the system kitchen to be accommodated.