JPH0727455U - washing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent deformation and damage of the engagement receiving member and the like due to careless handling in a washing machine having a door folded into two and provided with a rotation preventing mechanism. [Construction] The door 7 is composed of a front plate 9 and a rear plate 8 which are rotatably connected to each other. The rear plate 8 is provided with a fitting cylinder 12, and the front plate 9 is inserted into the fitting cylinder 12. An engagement lot 14 is provided so that it can be pulled out. A flange portion 14a is formed at the rear end portion of the engagement lot 14 and a spring 15 is provided to urge the engagement lot 14 in the direction of pulling out the engagement lot 14 from the fitting cylinder 12. Further, a lock mechanism 17 by a lock arm 16 is provided on the inner bottom portion of the front plate 9, and the engagement rod 14 resists the elastic force of the spring 15 to cause the fitting cylinder 1 to move.
It is inserted in 2 and locked in a rotation prevention state. Meanwhile, door 7
Is provided with a cover 19 that covers the front plate 9 and the rear plate 8 and that can slide back and forth.
If is slid forward, the interlocking mechanism 22 releases the locking of the engagement lot 14 by the lock mechanism 17, and the engagement lot 14 is pulled out of the fitting cylinder 12 at once by the spring 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a washing machine having a foldable door at an entrance / exit to a washing room.

[0002]

[Prior art]

 For example, in the case of a large-sized washing machine used for business purposes, it is possible to put a washing object, such as a rack for storing dishes, in the open state of the door so that the door is open. It is configured to be held so that it extends substantially horizontally forward from the lower edge of the inlet / outlet of the cleaning chamber. In this type of washing machine, when inspecting or cleaning the inside of the washing room, it is necessary for the worker to get as close as possible to the washing machine in order to put his / her hand into the washing room as deeply as possible. However, with the above configuration, the door extending from the lower part of the entrance of the cleaning room to the front interferes, so it is not possible to get close enough to the cleaning room, and the workability of inspecting the cleaning room is poor. was there.

Therefore, as disclosed in Japanese Utility Model Laid-Open No. 1-79458, the door is configured to be foldable, and when the cleaning room is inspected or the like, the open door is bent and the interior of the cleaning room is deepened. Something has been developed that allows the insertion of a hand. In the structure of the above publication, a front plate and a rear plate are pivotally connected to each other by a hinge to form a single door, and an upper surface portion (back surface of the door) of the door when the door is opened is engaged. A receiving member and a rotation blocking member are provided, and the rotation blocking member is inserted into the engagement receiving member to block the rotation of the front plate and the rear plate, and the rotation blocking member is pulled out from the engagement receiving member. Therefore, the front plate and the rear plate are configured to be rotatable with respect to each other. As a result, the door can be bent into the front plate and the rear plate so as not to get in the way, which facilitates inspection of the cleaning chamber.

[0004]

[Problems to be Solved by the Invention] However, when the door is bent, the operator does not think that the rotation preventing member has been completely pulled out from the engagement receiving member, even though it is not actually completely pulled out. There is a case where the front plate is mistakenly bent with respect to the rear plate. Then, the opening edge of the engagement receiving member is forcibly twisted by the tip end portion of the rotation preventing member, so that the engagement receiving member and the rotation preventing member are deformed or damaged.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an engagement receiving member by careless handling in a door having a double-folded structure and provided with a rotation preventing mechanism. An object of the present invention is to provide a washing machine capable of preventing deformation and damage of parts and the like.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the washing machine of the present invention is provided with a washing chamber provided for washing the washing object in the washing machine body, and an washing object formed in the front part of the washing machine body in the washing room. It is pivotable between a doorway for loading and unloading, and a closed position that is rotatably connected to the main body of the washing machine via a hinge mechanism to close the doorway and an open position that extends almost horizontally from the lower part of the doorway. In a washing machine having a two-part type consisting of a rear plate and a front plate that can be bent and rotated relative to each other via a hinge part, the door is provided on one of the front plate and the rear plate. An engagement receiving member, a rotation preventing member that is provided on the other side to prevent bending and rotation of the front plate and the rear plate by being inserted into the engagement receiving member, and an rotation receiving member. A spring for urging the And a locking mechanism for blocking the pulling-out movement of the rotation preventing member by the spring, and releasing the operation of the lock mechanism to move the turning preventing member from the engagement receiving member by the spring force of the spring. It is characterized in that it is configured in (claim 1). Further, a cover may be provided on the back surface of the door so as to be slidable with respect to the door, and an interlocking mechanism for releasing the operation of the lock mechanism by sliding the cover may be provided (the invention of claim 2).

[0007]

According to the first aspect of the invention, in order to bend the door, the operation by the lock mechanism may be simply released. Then, the rotation blocking member is completely pulled out from the engagement receiving member by the spring force of the spring, the rotation blocking state of the door between the engagement receiving member and the rotation blocking member is released, and the door is moved to the front plate and the rear plate. You will be able to fold it.

According to the second aspect of the invention, in order to bend the door, the cover provided on the door may be slid. Then, the operation of the lock mechanism is released via the interlocking mechanism, so that the rotation blocking member is completely pulled out from the engagement receiving member by the spring force of the spring, whereby the engagement receiving member and the rotation blocking member are separated from each other. The door rotation prevention state due to is released.

[0009]

[Effect of device]

 As described above, according to the washing machine of the present invention, the rotation inhibiting member can be completely pulled out from the engagement receiving member by releasing the operation of the lock mechanism, so that the rotation inhibiting member engages with the engagement receiving member. The door will not be bent as it is, and thus the deformation and damage of the engagement receiving member and the like can be reliably prevented.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 to 7. A schematic configuration of this embodiment is shown in FIG. The washing machine main body 1 is provided with a washing room 2 for washing dishes, which are objects to be washed, and a washing device (not shown). The entrance / exit 3 is made possible. At the lower end of the doorway 3, between a closed position where a door 7 closes the doorway 3 by a hinge mechanism 6 including a hinge 4 and a connecting arm 5 and an open position where the door 7 extends from the lower part of the doorway 3 to the front in a substantially horizontal plane. It is rotatably supported.

As shown in FIG. 2, the door 7 is divided into a rear plate 8 located on the side of the main body of the washing machine 1 and a front plate 9 located in front of the rear plate 8 and corresponds to a hinge portion. The hinges 10 are pivotally connected to each other. The peripheral edges of the rear plate 8 and the front plate 9 are bent upward so as to form a square plate shape, and slides made of a resin having excellent lubricity are provided on the outside of the left and right side walls of the front plate 9 and the rear plate 8. A guide plate 11 is provided.

On the other hand, a fitting cylinder 12 corresponding to two engagement receiving members is provided in the inner bottom portion of the rear plate 8 in a parallel state extending in the front-rear direction, and the inner bottom portion of the front plate 9 is also fitted with the fitting cylinders 12. A guide cylinder 13 is provided so as to be continuous with the coupling cylinder 12. An engaging rod 14 corresponding to a rotation preventing member is movably inserted into the guide cylinder 13 of the front plate 9, and when the tip portion thereof enters the fitting cylinder 12 of the rear plate 8, the engagement rod 14 is connected to the front plate 9. The rotation state with the rear plate 8 is prevented, and when withdrawn, the front plate 9 and the rear plate 8 can rotate. A flange portion 14a is formed at a rear end portion of the engagement rod 14, and a spring 15 connected to the flange portion 14a urges the engagement rod 14 in a direction in which the engagement rod 14 is pulled out from the fitting cylinder 12. There is.

Further, a lock arm 16 is rotatably supported on the inner bottom portion of the front plate 9 in front of each guide cylinder 13. The tip of this lock arm 16 is cut out to form a locking portion 16a, which can lock the collar portion 14a of the engaging rod 14 against the elastic force of the spring 15 and both locking portions 16a. The locked state can be released by rotating in a direction in which they approach each other. These configurations constitute a lock mechanism 17 that prevents the engagement rod 14 from being pulled out from the fitting cylinder 12 of the rear plate 8, and the engagement rod 14 is inserted into the fitting cylinder 12 by its operation. It keeps the entry state.

A stop projection 16b is formed at the center of the lock arm 16 so as to project on the movement locus of the locking rod 14, and the collar 14a of the locking rod 14 abuts on the stop projection 16b. The forward movement of the engagement rod 14 is stopped. A spring 18 is provided between the rear end of each lock arm 16 and the front wall of the front plate 9, and the locking portion 16a of the lock arm 16 is always connected to the engaging rod 14. It is biased in the engaging direction. On the other hand, as shown in FIGS. 3 and 4, the door 7 is provided with a bag-shaped cover 19 having a rear opening so as to cover the front plate 9 and the rear plate 8. The cover 19 is configured by providing a ceiling plate 21 on an upper portion of a bottom plate 20 having both left and right ends and a front end bent upward, and is provided on both left and right side face parts of the front plate 9 and the rear plate 8. It is slidable in the front-back direction by being guided by the slide guide plate 11. Further, on the lower surface of the ceiling plate 21 of the cover 19, pressing plates 21a are provided on both left and right sides of the central portion thereof. 4a is abutted and the engagement rod 14 is also slid along the guide tube 13 in the direction of the cleaner body 1 side. In addition, lock release pins 21b are provided on the lower surface of the ceiling plate 21 on both left and right side portions of the rear portion thereof. The lock arm 16 is rotated in the direction of arrow A in FIG. These structures configure an interlocking mechanism 22 that releases the holding of the rotation blocking state by the lock mechanism 17 when the cover 19 is slid forward.

A stopper plate 21c is provided in the cover 19 in the vicinity of the center of the lower surface of the ceiling plate 21. The stopper plate 21c is slid forward and the rear plate 8 is completely exposed. Reference numeral 21c abuts on a stopper receiving plate 23 provided upright on the inner bottom front portion of the front plate 9 to stop the sliding movement. Further, the ceiling plate 21 of the cover 19 has a recess 19a formed at the center of the opening edge thereof, and the recess 19a is provided with a turn fastener 24 having a well-known structure. When the turn fastener 24 is engaged with an engaging portion (not shown) provided on the rear plate 8, the cover 19 is engaged with the rear plate 8 while completely covering the front plate 9 and the rear plate 8 and engaged. The cover 19 can be slid by removing the cover.

Next, the operation of this embodiment will be described. In order to store, for example, tableware, which is an object to be cleaned, in the cleaning chamber 2, first, the door 7 is pulled forward and rotated to the open position. At this time, since the cover 19 completely covers the front plate 9 and the rear plate 8 and the engaging rod 14 of the front plate 9 has entered the fitting cylinder 12 of the rear plate 8, Rotation of the plate 9 and the rear plate 8 is blocked, and the plates 9 and 8 are in a rotation blocking state in which they are connected substantially horizontally. Therefore, it is possible to place a rack in which dishes are stored on the upper surface of the cover 19, and the rack can be carried into the cleaning chamber 2 while sliding.

Also, when the rack is taken out from the washing chamber 2, the rack is placed on the upper surface of the cover 19 and slid out before being carried out. When the rack is put in and taken out of the washing chamber 2 in this way, it is sufficient to simply put the rack on the cover 19 and slide it in and out. Even in this way, various mechanisms in the door 7 interfere with the movement of the rack. It never happens.

Next, the inspection or cleaning of the inside of the cleaning chamber 2 is performed as follows. First, similarly to the above, the door 7 is pulled to the front and rotated to the open position. Then, remove the turn fastener 24, hold the left and right sides of the cover 19 with both hands and pull the cover 19 toward you. Then, the lock release pin 21b of the lock arm 16 is released near the position where the rear plate 8 is completely exposed. If the cover 19 is brought into contact with the operating plate 16c and the cover 19 is further pulled from this position, the operating plate 16c is pushed by the lock release pin 21b accordingly and the locking portion 16a rotates inward.

When the rear plate 8 exceeds the position where the rear plate 8 is completely exposed, the collar portion 14a of the engaging rod 14 is disengaged from the locking portion 16a from the state shown in FIG. Due to the elastic force, it moves forward at once and is completely pulled out from the fitting cylinder 12 of the rear plate 8 to be in the state shown in FIG. As a result, the rotation blocking state due to the engagement between the engagement rod 14 and the fitting cylinder 12 is released in an instant, and the front plate 9 can rotate downward with respect to the rear plate 8. Therefore, when the front plate 9 is rotated downward with respect to the rear plate 8, the front plate 9 is bent with respect to the rear plate 8 as shown in FIG. In such a bent state, the worker can get closer to the cleaning chamber 2 side, so that the operator can easily put his / her hand into the cleaning chamber 2 to easily perform cleaning and inspection. Become.

As described above, in this embodiment, when the door 7 is bent, the engaging rod 14 is completely pulled out at once from the fitting cylinder 12 by the elastic force of the spring 15, so that the tip of the engaging rod 14 is pulled. It is not possible that only the part is slightly engaged with the fitting cylinder 12. Therefore, unlike the conventional case, the door 7 is not accidentally bent in a state where the engaging rod 14 is not completely pulled out from the fitting cylinder 12, and the opening edge of the fitting cylinder 12 has an opening edge. It is possible to reliably prevent the occurrence of obstacles such as being twisted and deformed by 14.

Further, particularly in the present embodiment, since the cover 19 for covering the upper surface of the door 7 (the back surface of the door) is provided, it is possible to slide the upper surface of the table when the dish is put in or taken out of the washing chamber 2. As a result, the lock mechanism 17 and the like can be protected from being damaged due to contact with the corners of the rack. Moreover, since the operation of the lock mechanism 17 can be released only by sliding the cover 19, the bending operation is very easy. The object to be cleaned is not limited to tableware, but may be a tray on which tableware or the like is placed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing the inside of the door.

FIG. 3 is a longitudinal sectional view of the door taken along the line III-III in FIG.

FIG. 4 is a vertical cross-sectional view of the door taken along the line IV-IV in FIG.

FIG. 5 is a top view of the inside of the door showing a rotation prevention state.

FIG. 6 is a top view of the inside of the door showing a state where the rotation prevention state is released.

FIG. 7 is a perspective view showing a bent state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Washer main body 2 ... Washing room 3 ... Doorway 6 ... Hinge mechanism 7 ... Door 8 ... Rear plate 9 ... Front plate 10 ... Hinge (hinge part) 12 ... Fitting cylinder (engagement receiving member) 14 ... Engagement rod (Rotation blocking member) 15 ... Spring 17 ... Lock mechanism 19 ... Cover 22 ... Interlocking mechanism

Claims (2)

[Scope of utility model registration request] 1. A cleaning chamber provided for cleaning an object to be cleaned in a main body of the cleaning machine, and a doorway formed in a front portion of the main body of the cleaning machine for putting an object to be cleaned in and out of the cleaning chamber. A door that is rotatably connected to the main body of the washing machine via a hinge mechanism and that is rotatable between a closed position that closes the doorway and an open position that extends substantially horizontally from a lower portion of the doorway. A washing machine in which the door is formed in a two-part type including a rear plate and a front plate that are bendable and rotatable with respect to each other via a hinge part, and an engagement provided on one of the front plate and the rear plate. A receiving member, a rotation blocking member that is provided on the other side and blocks the front plate and the rear plate from bending and rotating by being inserted into the engagement receiving member, and the rotation blocking member is the engagement receiving member. A sprout for urging the member in the pull-out direction. And a lock mechanism for blocking the pulling-out movement of the rotation blocking member by the spring, and releasing the operation of the lock mechanism to move the rotation blocking member from the engagement receiving member by the spring force of the spring. A washing machine configured to be pulled out and moved. 2. A cover is provided on the back surface of the door so as to be slidable with respect to the door, and an interlocking mechanism for releasing the operation of the lock mechanism by sliding the cover is provided. The washing machine according to claim 1.