JPH05161586A - Door opening/closing apparatus for dish washer - Google Patents

Abstract

PURPOSE:To reduce an assembling space with the curtailment of the number of parts of an assembling device by facilitating the assembling of door opening/ closing mechanism components. CONSTITUTION:In a base plate part 21a, part holding members 21 protrude corresponding to an assembling position of door opening/closing mechanism components to allow the holding of the door opening/closing mechanism components to be inserted separately from the side of tips thereof. Moreover, a part grasping member 22 is mounted on the part holding member 21 and presses and grasps the plurality of door opening/closing mechanism components inserted into the holding part of part holding member 21 with a protrusion part sticking integral at positions corresponding to a grasping plate part 22 and the holding part of the part holding member 21 of the grasping plate part 22 respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for a dishwasher, and more particularly to a door opening / closing device for a dishwasher in which the door opening / closing mechanism components can be easily assembled.

[0002]

2. Description of the Related Art As a conventional door opening / closing device of this type of dishwasher, there is a technique disclosed in Japanese Utility Model Publication No. 53-13234. 7 is a partial cross-sectional view showing the door opening / closing device of the conventional dishwasher when the door is closed, FIG. 8 is a front view of FIG. 7, and FIG. 9 is a part showing the door opening / closing device of the conventional dishwasher when the door is open. FIG.

In the figure, 101 is a dishwasher casing, 102 is a washing tank provided in the casing 101 for washing dishes, 103 is an opening of the casing 101 for opening the washing tank 102 to the outside, A door 104 is provided in the opening 103 of the casing 101 so as to be openable and closable around a hinge (not shown) at the lower end. A door 105 is fixed in the door 104, and a rotation shaft 106 and an arc-shaped rotation restriction hole 107 are provided. The provided bracket 108 is rotatably supported by the rotating shaft 106 of the bracket 105, and the operation pin 109 is inserted into the rotation restricting hole 107 of the bracket 105 so that the rotating range is restricted to a predetermined angle. Operation member,
Reference numeral 108a denotes an operation lever that extends downward from the operation member 108 and that can rotate the operation member 108 from the outside.
Reference numeral 0 is an urging spring that urges the operating member 108 toward both ends of the rotation range around the dead point.

Reference numeral 111 denotes a rotary shaft 106 of the bracket 105, which is rotatably supported together with the operating member 108.
The operation pin 10 of the operation member 108 is provided in the character-shaped operation hole 112.
9 is a stopper member that rotates together with the operating member 108, and 111a is a stopper lever that extends upward from the stopper member 111, and is formed on the door 104 according to the rotation angle of the stopper member 111. Through hole 104
via the stopper hole 101a of the casing 101
It is designed to be hooked on. Reference numeral 113 denotes an open / close detection switch that is operated to be turned on / off by the operation lever 108a in accordance with the rotation of the operating member 108. A control circuit (not shown) controls a dishwasher according to the open / close state of the open / close detection switch 113. The cleaning operation of is automatically stopped.

Next, the operation of the door opening / closing device of the dishwasher configured as described above will be described. During the cleaning, the tableware in the cleaning tank 102 is cleaned with the cleaning liquid ejected from the nozzle (not shown), and a large amount of cleaning water is scattered in the cleaning tank 102. At this time, the door 104 is switched to the closed state, the operation member 108 and the stopper member 111 are held in the posture rotated clockwise by the urging force of the urging spring 110, and the stopper lever 111 a is the stopper of the casing 101. The door 104 is hooked in the hole 101a (FIG. 7) to regulate the opening of the door 104, and as a result, the scattering of the wash water is prevented from reaching the outside. In addition, the operating lever 10 of the operating member 108
8a operates the open / close detection switch 113 to hold it in the ON state, and the control circuit continues the cleaning operation described above.

Now, when the operation lever 108a is pulled and the operation member 108 is rotated counterclockwise, first, at the initial stage of rotation, the operation lever 108a is separated from the open / close detection switch 113 and turned off. The state is switched to the state, and the control circuit accordingly stops the spouting of the washing water. Operating lever 108
When a is further pulled and the operating member 108 completes the rotation, the stopper lever 111a moves downward to release the latching with respect to the stopper hole 101a (FIG. 9), and in that state, the operating lever 108a is pulled. By doing so, the door 104 is opened, and the dishes in the cleaning tank 102 can be taken out arbitrarily. Then, at this time point, the spouting of the washing water has already been stopped, so the opening of the door 104 prevents the washing water from splashing outside.

[0007]

Since the conventional door opening / closing device for the dishwasher is constructed as described above, the door 10
In order to assemble a plurality of opening / closing mechanism constituent parts of No. 4, it was necessary to use an assembling tool for each part, and it took a lot of time to assemble. And since the assembling tools corresponding to each part are required respectively, the number of parts increases,
Along with that, a large space was required for the opening / closing mechanism.

Therefore, the present invention is to provide a door opening / closing device for a dishwasher in which the components of the door opening / closing mechanism can be easily assembled, the number of parts of the assembling tool can be reduced, and the assembling space can be reduced. It is what

[0009]

A door opening / closing device for a dishwasher according to the present invention is provided with a plurality of door opening / closing devices protruding from a tip end side of the door opening / closing mechanism corresponding to the mounting positions of the door opening / closing mechanism components. A component holding member having a holding portion capable of inserting and holding the opening / closing mechanism component is disposed in the opening / closing mechanism portion of the door,
A plurality of doors inserted into the holding portion of the component holding member by the holding plate portion and projecting portions projecting to positions corresponding to the holding portion of the component holding member on the holding plate portion. A component holding member for integrally pressing and holding the opening / closing mechanism components is attached.

[0010]

In the present invention, the assembling of the door opening / closing mechanism component is performed from the insertion side after the door opening / closing mechanism component is inserted from the tip ends of the plurality of projecting holding portions of the component holding member. This is performed by integrally pressing and holding the holding portion of the component holding member. For this reason, the door opening / closing mechanism component can be easily assembled only by holding the component holding member and the component holding member. In the assembling, since the assembling tool is almost unnecessary, the number of parts can be reduced and the assembling space can be saved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a front view showing a dish washer equipped with a door opening / closing device according to an embodiment of the present invention, and FIG. 2 is a side view showing the operating principle of the door opening / closing device of the dish washing machine according to an embodiment of the present invention. 3 is a perspective view showing the latch mechanism of FIG.
FIG. 4 is a perspective view specifically showing a connecting portion of the handle cover side switch of FIG. 2, and FIG. 5 is a side view of a main portion showing a state in which the handle cover side switch of FIG. 4 is attached.

In the figure, 1 is a dishwasher main body, 2 is a door attached to the front of the dishwasher main body 1, and a door that rotates back and forth around the lower end as an axis, 3 is an operation formed on the upper portion of the door 2. A handle cover that is attached to the opening 2a and rotates inwardly around the lower end as a shaft, and is normally operated by a biasing means.
Is blocked. Reference numeral 4 is a control surface of a control box provided on the upper portion of the door 2. Reference numeral 5 denotes a handle cover side switch that is opened and closed by pressing the contact portion 3a at the inner tip of the handle cover 3, and is separated from the contact portion 3a by pressing the handle cover 3 from the outside and rotating it. 6 is a latch mechanism provided inside the door 2 for engaging and releasing the main body 1 of the washing machine and the door 2, and 7 is a latch mechanism for holding the latch mechanism 6 by inserting and operating a fingertip from the operation port 2a. The handle 8 to be released is a handle side switch 8 attached to the end portion side of the handle 7, and the handle cover side switch 5 attached to the handle cover 3 side holds the cut state, and the door 2
While the above is open, the drive of the washing pump (not shown) is stopped to stop the jet of washing water in the washing tank.

Next, the operation of the door opening / closing device of the dishwasher of the present embodiment having the above-mentioned structure will be described. In order to open the door 2, first, when the finger cover is inserted while pressing the handle cover 3 that closes the operation port 2a to operate the handle 7 inside the door 2, the handle cover 3 uses the lower end portion as an axis. It rotates inward, that is, in the direction of the arrow in FIG. 2, and at the same time, the contact portion 3a of the handle cover 3 separates from the handle cover side switch 5. As a result, the handle cover side switch 5 is turned off, a detection signal is sent to a control circuit (not shown), the control circuit stops driving the washing pump, and turns off the power of the hot water heater for heating the washing water. Then, when the fingertip is further inserted by continuous operation and the front part of the handle 7 is pressed toward the front side and pulled,
The latch mechanism 6 is released, and the door 2 becomes rotatable. Then, the handle side switch 8 is turned off while the door 2 is opened, the drive of the washing pump is stopped, and the hot water heater is held in the off state.

In this way, the time from when the handle cover 3 is pressed from the outside and the handle cover side switch 5 is turned off until the door 2 can be opened by the operation of the handle 7 is extended. Even after the handle cover side switch 5 is turned off, it is possible to stop the cleaning water from spouting while rotating by inertia until the door 2 is opened, and the door 2 is opened quickly. However, the washing water does not splash outside.

Here, an example of a specific component structure for connecting the handle cover 3 and the handle cover side switch 5 in this embodiment will be described with reference to FIGS. 4 and 5. In the figure, 1
Reference numeral 1 denotes a shaft which pivotally supports a handle cover 3 attached to an operation port 2a of a door 2 at a lower end portion thereof.
Reference numeral 2 denotes a biasing spring that is attached to the shaft 11 and biases the handle cover 3 in the closing direction from the back surface. Reference numeral 13 denotes a connecting pin that is attached to an end portion of the back surface of the handle cover 3, the end portion of which is the handle cover. Connecting plate 14 for connecting the side switch 5
Is slidably inserted in the elongated hole 14a. Reference numeral 15 is a fulcrum shaft that pivotally supports the connecting plate 14 at its central portion, 1
Reference numeral 6 denotes a switch holding plate made of a leaf spring material having an elastic force that rotates upward with a holding plate support shaft 17 attached to the control surface 4 of the control box as a fulcrum, and a connecting plate when the operation port 2a is closed. The upward movement of the handle cover side switch 5 is regulated by the contact portion 5 of the handle cover side switch 5.
a is pressed downward.

The handle cover 3 is made up of the above components.
And the handle cover side switch 5 are connected,
When the front surface of the handle cover 3 is pressed against the elastic force of the biasing spring 12 with a fingertip in order to open the door 2, the handle cover 3
The connecting pin 13 attached to the rear end portion of the above rotates downward. Along with this, the connecting plate 14 rotates clockwise with the fulcrum shaft 15 as a fulcrum by pressing the one end side of the connecting plate 14 downward while the end of the connecting pin 13 slides in the elongated hole 14a. To do. As a result, the switch pressing plate 16 whose upward movement is restricted by the connecting plate 14 is released from the restriction and is rotated upward by the elastic force about the pressing plate supporting shaft 17 as a fulcrum, so that the handle cover side switch 5 Abutment 5
The handle cover side switch 5 is turned off by being separated from a. In this component configuration example, the mounting direction of the handle cover side switch 5 is opposite to that in FIG. 2, but the operating principle is the same.

Next, the assembling of the door opening / closing mechanism components of this embodiment will be described. FIG. 6 is an exploded perspective view of a door opening / closing device for a dishwasher according to an embodiment of the present invention. In the figure, 2
1 is a box-shaped component holding member made of synthetic resin,
It has a function as a control box for holding the door opening / closing mechanism components and controlling the operation of the dishwasher, and the front surface side of the base plate portion 21a, which is the bottom surface, becomes the control surface 4 and the appearance design of the upper portion of the door 2 Make a face. Reference numeral 21b denotes a handle cover holding projection for projecting inwardly on both edges of the operation port 2a on the back surface of the substrate portion 21a of the component holding member 21 and for holding both ends of the shaft 11 attached to the lower end of the handle cover 3. And the shaft 11 of the handle cover 3
Is inserted from the tip end side of the groove portion so that it can be held. Reference numeral 21c denotes a handle side switch holding portion that protrudes inward from the back surface of the board portion 21a of the component holding member 21, and the handle side switch 8 can be inserted and housed in the internal space of a hollow square pole. Reference numeral 21d is a fulcrum shaft holding protrusion that also projects from the back surface of the substrate portion 21a of the component holding member 21, and can hold the fulcrum shaft 15 mounted on the handle cover side switch 5 side in the tip groove portion thereof. Reference numeral 21e is a handle-side switch holding portion that also has a hollow quadrangular prism shape and protrudes from the board portion 21a. The handle-cover-side switch 5 is inserted and stored in the internal space. A groove portion 21f into which the holding plate support shaft 17 on the switch 5 side can be inserted is formed.

That is, these handle cover holding projections 21
b, handle side switch holding portion 21c, fulcrum shaft holding protrusion 21
d and the handle cover side switch holding portion 21e both project perpendicularly to the board portion 21a of the component holding member 21, and can be integrally formed with the board portion 21a. Reference numeral 21g denotes a cylindrical screw mounting projection formed on both ends of the board portion 21a of the component holding member 21, and this also can be integrally formed with the board portion 21a.

Reference numeral 22 denotes a component holding member made of synthetic resin, which is attached to the opening side of the component holding member 21 below the upper end thereof with a predetermined distance, and has flanges at both ends of a holding plate portion 22a having a substantially U-shaped plate shape. 22b is integrally formed, and a mounting hole 22c is formed in the flange 22b. 22d
The component holding member 2 is attached to the holding plate portion 22a of the component holding member 22.
1 is a handle cover holding projection that vertically protrudes toward the 1st side, and after inserting the shaft 11 of the handle cover 3 into the groove portion of the handle cover holding protrusion 21b of the component holding member 21, from the opposite side of the shaft 11 at the tip portion. It can be pressed and held. Reference numeral 22e is a fulcrum shaft holding protrusion that also projects perpendicularly to the holding plate portion 22a of the component holding member 22, and the fulcrum shaft 15 on the handle cover side switch 5 side is inserted into the groove of the fulcrum shaft holding protrusion 21d of the component holding member 21. rear,
At the tip, the fulcrum shaft 15 can be pressed and held from the opposite side.

23 is inserted into the mounting hole 22c of the component holding member 22, and the screw mounting projection 2 of the component holding member 21 is inserted.
The component holding member 22 is screwed to 1f, and the component holding member 22 is attached to the component holding member 2.
It is a mounting screw to be mounted in the opening of No. 1.

To assemble a plurality of opening / closing mechanism parts by using the part holding member 21 and the part holding member 22,
First, the shaft 11 of the handle cover 3 is attached to the component holding member 21.
In the groove portion of the handle cover holding projection 21b, the handle side switch 8 in the handle side switch holding portion 21c, and the fulcrum shaft 15 on the handle cover side switch 5 side in the groove of the fulcrum shaft holding projection 21d, and , Handle cover side switch 5
The handles are respectively inserted into the switch holding portions 21e on the handle cover side. Next, the component holding member 22 is attached to the component holding member 21.
Of the handle cover 3 when it comes into contact with the opening of the handle cover 3.
1. The handle side switch 8, the fulcrum shaft 15 on the handle cover side switch 5, and the handle cover side switch 5 are the component holding members 21.
It is pressed and held by the component holding member 22 and. here,
The handle side switch 8 and the handle cover side switch 5 are held by direct contact of the holding plate portion 22a of the component holding member 22. It should be noted that the switch holding plate 16 on the handle cover side switch 5 side is located above the upper end portion of the component holding member 22 after the assembling, as shown in FIG. 5, and does not interfere with the component holding member 22. In this assembly, since the projecting portions of the component holding member 21 and the component holding member 22 both project in the vertical direction, they can be easily held in a fixed direction.

Next, after each door opening / closing mechanism component is pinched by the component holding member 21 and the component holding member 22, a mounting screw 23 is screwed to attach the component holding member 22 to the component holding member 21.
The door opening / closing mechanism components are securely held in a fixed position by mounting the components on the door. As a result, the handle cover 3 closes the operation port 2a of the component holding member 21,
The handle side switch 8 is disposed at a position that operates in accordance with the rotation of the handle 7, the handle cover side switch 5 is disposed in a position that operates in accordance with the rotation of the handle cover 3, and the handle cover side switch 5 side The switch holding plate 16 is a holding plate supporting shaft 17
Is inserted into the groove portion 21f of the handle side switch holding portion 21e, and the component holding member 22 is inserted through the handle cover side switch 5.
By being pressed by the holding plate portion 22a, it is held integrally with the handle cover side switch 5.

As described above, the door opening / closing device for the dishwasher according to the above-described embodiment has a door opening / closing mechanism structure such as the handle cover 3, the handle cover side switch 5, the switch holding plate 16, the handle side switch 8 and the like on the substrate portion 21a. A handle cover holding protrusion 21b, a mounting side switch holding portion 21c, a fulcrum shaft holding protrusion 21d, and a handle cover that protrude in correspondence with the assembly position of the components and can hold the door opening / closing mechanism components by inserting the components from the respective tip sides. A component holding member 21 having a holding portion such as a side switch holding portion 21e is provided in the opening / closing mechanism portion of the door 2, and the holding member 21 holds the holding plate portion 22 and the holding plate portion 22 with the holding portion. By the handle cover holding member 22d and the fulcrum shaft holding protrusion 22e, which are the protruding portions protruding to the positions corresponding to the holding portions of the members, a plurality of members inserted into the holding portion of the component holding member 21 are provided. The opening and closing mechanism components are those fitted with a component clamping member 22 which integrally presses clamped.

Therefore, according to the above-described embodiment, the door opening / closing mechanism component is assembled by inserting the door opening / closing mechanism component from the tip ends of the plurality of projecting holding portions of the component holding member 21, and then inserting the door opening / closing mechanism component. From the corresponding component holding member 21 by integrally pressing and holding the holding portion.
For this reason, the door opening / closing mechanism component can be easily assembled only by holding the component holding member 21 and the component holding member 22. In the assembling, since the assembling tool is almost unnecessary, the number of parts can be reduced and the assembling space can be saved. In the present embodiment, the handle cover side switch 5 is provided via the component holding member 21 and the component holding member 22.
Also, since the handle side switch 8 and the handle side switch 8 are arranged to interlock with the rotation of the handle cover 3 and the handle 7, respectively, there is no need to separately operate the handle cover side switch 5 and the handle side switch 8, and the door 2 is opened and closed. The operability at the time can be improved.

In the above embodiment, the door opening / closing mechanism component of the door 2 is composed of the handle cover 3, the handle cover side switch 5, the switch holding plate 16, the handle side switch 8 and the like. When carrying out the invention, the invention is not limited to this, and the same can be applied even when the invention is constituted by other door opening / closing mechanism components. Further, although the component holding member 22 of the above-mentioned embodiment is attached to the component holding member 21 using the attaching screw 23,
When carrying out the present invention, the present invention is not limited to this. For example, the component holding member 21 and the component holding member 22.
It is also possible to form an engaging concave portion and an engaging convex portion at the attachment end portion of and to fit and attach. Further, in the component holding member 21 and the component holding member 22 of the above-described embodiment, it is possible to attach a cushioning material to a portion for accommodating or pressing each door opening / closing mechanism component. In this case, each door opening / closing mechanism configuration It is possible to prevent the parts from being damaged by impact and to hold them in a more stable state.

[0026]

As described above, according to the door opening / closing device of the dishwasher of the present invention, a plurality of the door opening / closing devices are projected on the substrate in correspondence with the mounting positions of the door opening / closing mechanism components, and each of the door opening / closing devices is opened from the tip end side. A component holding member in which a holding portion capable of holding and inserting a mechanical component is formed is disposed in the opening / closing mechanism portion of the door, and the component holding member includes a substrate and a holding portion of the component holding member on the substrate, respectively. The component holding member for integrally pressing and holding the plurality of door opening / closing mechanism components inserted in the holding portion of the component holding member is attached by the projecting portion projecting to the corresponding position. Therefore, the assembly of the door opening / closing mechanism component of the door is performed by inserting the door opening / closing mechanism component from the tip ends of the plurality of projecting holding portions of the component holding member and then holding the corresponding holding portion of the component holding member from the insertion side. Is performed by pressing and holding them together. For this reason, the door opening / closing mechanism component can be easily assembled only by holding the component holding member and the component holding member. In the assembling, since the assembling tool is almost unnecessary, the number of parts can be reduced and the assembling space can be saved.

[Brief description of drawings]

FIG. 1 is a front view showing a dishwasher equipped with a door opening / closing device according to an embodiment of the present invention.

FIG. 2 is a side view showing the operation principle of the door opening / closing device of the dishwasher according to the embodiment of the present invention.

3 is a perspective view showing the latch mechanism of FIG. 2. FIG.

FIG. 4 is a perspective view specifically showing a connecting portion of the handle cover side switch of FIG.

5 is a side view of essential parts showing a state in which the handle cover side switch of FIG. 4 is attached.

FIG. 6 is an exploded perspective view of a door opening / closing device of a dishwasher according to an embodiment of the present invention.

FIG. 7 is a partial cross-sectional view showing a door opening / closing device of a conventional dishwasher when the door is closed.

FIG. 8 is a front view of FIG. 7.

FIG. 9 is a partial cross-sectional view showing a door opening / closing device of a conventional dishwasher when the door is opened.

[Explanation of symbols]

 2 Door 5 Handle cover side switch 8 Handle side switch 21 Parts holding member 21a Board part 21b Handle cover holding protrusion 21c Handle side switch holding part 21d Support shaft holding protrusion 21e Handle cover side switch holding part 22 Parts holding member 22a Holding plate part 22d Handle cover gripping protrusion 22e Support point shaft gripping protrusion

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshitaka Yajima 1-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Corporation Nakatsugawa Works (72) Inventor Masaharu Ohori 1-3-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Nakatsugawa Manufacturing Co., Ltd. (72) Inventor Kiyoshi Nakamura 1-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Corporation Nakatsugawa Manufacturing Co., Ltd. (72) Naoki Nishio 1-3-3 Komaba-cho, Nakatsugawa-shi, Gifu Mitsubishi Electric Corporation Nakatsugawa Works

Claims (1)

[Claims] 1. A door opening / closing mechanism is provided, and a plurality of the door opening / closing mechanism components are projected on the substrate in correspondence with the mounting positions of the door opening / closing mechanism components. A component holding member having a holding portion capable of holding, a holding plate portion attached to the component holding member, and a projecting portion projecting to a position corresponding to the holding portion of the component holding member on the holding plate portion. And a component holding member for integrally pressing and holding the plurality of door opening / closing mechanism components inserted in the holding portion of the component holding member.