JP2008220601A - Door structure for case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door structure for a case, which is capable of surely keeping a door body in a closed state with a simple configuration. <P>SOLUTION: The door structure for the case includes: the door body 5 arranged in a washing machine body 9 via a hinge part 21; a roller 21d for controlling the opening movement of the door body 5 by abutting on the front edge board part 13a of a supporter part 13, at the terminal end C2 of an orbit C when the door body 5 is opened; and a resilient member 27 which is arranged at the start end C2 of the orbit C in the roller 21d, resiliently deformed when the roller 21d passes, restored after the roller 21d passes, and locks the roller 21d when the door body 5 is closed. Consequently, the closed state of the door body 5 is kept by such simple configuration that the opening movement when the door body 5 is opened is controlled by the roller 21d, and the roller 21d is locked by the resilient member 23. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a door structure of a housing in which an openable / closable door body is attached to the front surface side of the housing body of a dishwasher, an ice making machine or the like.

Patent Document 1 describes an undercounter type dishwasher. In this dishwasher, the door stands up to shield the front of the main body of the washer, and the front is opened forward. The door is attached to the main body of the washing machine via a hinge part. When the door is closed, the back surface comes into contact with the cleaning machine main body, and when the door is opened, a part of the hinge contacts the cleaning machine main body and is positioned. Further, a tension spring is attached to the door, and a force necessary to open and close the door is adjusted by the tension spring.
JP-A-4-314414

  However, in the door structure in the conventional dishwasher, in order to open and close easily, the force which hold | maintains a door in the closed state is set weakly. As a result, the door may slightly open due to an increase in internal pressure when washing dishes, and hot water for washing may leak out. In order to avoid this, for example, if a door latch mechanism or a door lock mechanism is provided, the number of components is likely to increase and the structure is complicated, resulting in an increase in cost. Also, in the door structure of the ice making machine, the door is closed with a lock mechanism in order to securely block the inside of the ice storage from the outside air, resulting in an increase in cost.

  An object of this invention is to provide the door structure of the housing | casing which can hold a door main body in a closed state reliably with a simple structure.

  In the present invention, a hinge portion is rotatably attached to a shaft portion provided on the front surface side of a housing body provided with a front opening frame portion that forms an opening portion, and the door body is fixed to the hinge portion so that the opening portion is fixed. In the door structure of the housing that can be opened and closed, the door main body is provided at the hinge portion and abuts against the abutting portion disposed behind the front opening frame portion at the end of the track when the door main body is opened. A stopper part that restricts the opening of the stopper part, and is arranged at the start end of the stopper part raceway. When the stopper part passes, it is elastically deformed by the pressing of the stopper part, and is restored after passing through the stopper part. And an elastic member that is locked when being used.

  In this door structure, the door body moves with the rotation of the hinge portion, and opens and closes the opening. When the door body is opened, the stopper portion provided in the hinge portion abuts on the abutting portion disposed behind the front opening frame portion and restricts the opening of the door body. When the door body is closed, the stopper portion passes while elastically deforming the elastic member, and the elastic member is restored when the stopper portion passes to lock the stopper portion. Therefore, in this door structure, the opening movement when the door main body is opened can be restricted by the stopper portion, and the closed state of the door main body can be maintained by a simple configuration in which the stopper portion is locked by the elastic member. As a result, the number of parts can be reduced as compared with a case where a door latch mechanism and a door lock mechanism are separately provided, and the door body can be reliably held in a closed state by a simple configuration.

  Furthermore, it is preferable that the elastic member is formed by a leaf spring having a locking portion that protrudes toward the shaft portion at the start end of the stopper portion. The latching portion can be provided on the elastic member simply by bending the leaf spring.

  Furthermore, it is preferable that the other elastic member is formed by a leaf spring having a second locking portion that protrudes toward the shaft portion in the middle of the track of the stopper portion. Since the stopper portion can be locked in the middle of the track, the opening of the door body can be stopped in the middle, improving convenience.

  Furthermore, the stopper portion is preferably a rotatable resin roller. The impact noise when the stopper part abuts against the abutting part arranged behind the front opening frame part can be reduced, and the roller rotates when the stopper part passes through the elastic member, so the door body moves smoothly. Can be made.

  According to the door structure of the housing according to the present invention, the door body can be reliably held in a closed state with a simple configuration.

  Hereinafter, a preferred embodiment of a door structure of a housing according to the present invention will be described in detail using a dishwasher with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the dishwasher 1 </ b> A is an under-counter type washing machine that opens and closes the washing chamber 3 with the door body 5 when a rack in which tableware is set is taken in and out of the washing chamber 3. The housing 2 of the dishwasher 1A includes a washing machine body (housing body) 9 and a door body 5 surrounded by an outer plate 7, and the washing machine body 9 includes an upper washing chamber 3 and a lower washing body 3. It is partitioned into a machine room 11. The cleaning chamber 3 is provided with an upper cleaning nozzle, a lower cleaning nozzle 3a, and the like, and the machine chamber 11 is provided with a cleaning liquid tank, a cleaning liquid pump, a booster, and the like (not shown).

  C-shaped struts 13 are erected on the left and right sides of the front portion of the cleaning machine body 9 and on the left and right sides of the rear portion. The front end 6 a of the inner plate 6 that forms the cleaning chamber 3 is bent at the front side of the support column 13, and the front end 7 a of the outer plate 7 is also bent so as to overlap the front end 6 a of the inner plate 6. The front end portion 6a of the inner plate 6 and the front end portion 7a of the outer plate 7 are screwed to the support column portion 13, and the front opening frame portion 15 is constituted by both end portions 6a and 7a. Furthermore, a plate member (not shown) is bridged between the upper and lower positions of the front opening frame 15, and the opening S of the cleaning chamber 3 is formed by the front opening frame 15 and the plate member.

  As shown in FIGS. 2 to 5, a bracket 17 protruding to the front side is bolted to an intermediate portion of the column portion 13 that is a boundary between the machine chamber 11 and the cleaning chamber 3. The extending shaft portion 19 is fixed. The door body 5 is attached to the shaft portion 19 via a hinge portion 21. When the outer plate 7 on the front surface of the machine room 11 (see FIG. 1) is removed, the bracket portion 17 is exposed. And by removing the bracket 17 from the support | pillar part 13, the door main body 5 and the hinge part 21 can be easily removed from the washing machine main body 9, and a maintenance can be performed easily.

  The hinge portion 21 is a substantially L-shaped steel material (see FIG. 6), and includes a bearing portion 21a supported by the shaft portion 19, a retaining plate portion 21b screwed to the door body 5, and a bearing portion 21a. An arm portion 21c extending along a straight line L2 substantially orthogonal to the straight line L1 connecting the plate portion 21b. The arm part 21c is arranged so that the rear end is behind the front opening frame part 15 through the notch 15a of the front opening frame part 15 and the notch 13c of the support pillar part 13, and the arm part 21c A roller (stopper portion) 21d is attached to the rear end. The roller 21d is rotatably attached to a roller shaft 21f fixed to the arm portion 21c, and is disposed so as to partially protrude from the edge of the arm portion 21c. Furthermore, the roller 21d is made of a resin such as plastic, rubber, or elastomer. Further, since the roller shaft 21f is made of metal, it is more resistant to load than the case of resin.

  A hole 21g for suspending the hook 23 is provided between the roller 21d and the bearing portion 21a, and the upper end of the coil spring 25 is hooked on the hook 23. The lower end of the coil spring 25 is attached to the front opening frame portion 15 via a support shaft. The coil spring 25 is attached so that the door main body 5 is balanced at a position inclined about 45 degrees with respect to the vertical direction, and supports the opening and closing operation of the door main body 5. That is, when the door body 5 is raised from the balance position of the coil spring 25, the door body 5 automatically closes. When the door body 5 is tilted, the weight of the door body 5 overcomes the pulling force of the coil spring 25 and the door body 5 automatically opens. . The holes 21g for suspending the hook 23 are provided at two locations, and the balance position of the coil spring 25 can be finely adjusted by selecting each hole 21g.

  When the door body 5 is opened and closed, the roller 21d moves together with the hinge portion 21. When the door body 5 is opened, the roller 21d moves along an arc-shaped track centering on the shaft portion 19, and a part protruding from the edge of the hinge portion 21 is disposed behind the front opening frame portion 15. It abuts on the front edge plate portion (abutment portion) 13a of the column portion 13 (see FIGS. 2 and 3). The position where the roller 21d contacts the front edge plate portion 13a is the end C2 of the track C. The roller 21d restricts the opening movement of the door body 5 by reaching the end C2, and the door body 5 is fully opened. Since the roller 21d is made of resin, even if it collides with the front edge plate portion 13a of the metal support column 13, the collision sound is small. The abutting portion with which the roller 21d abuts may be a member different from the column portion 13, and the abutting portion may be formed by an elastic body arranged behind the front opening frame portion 15. .

  When the door body 5 is closed, the door body 5 comes into contact with the front surface 15b of the front opening frame portion 15 (see FIGS. 4 and 5). The stop position of the roller 21d when the door body 5 is closed is the start end C1 of the track C. An elastic member 27 for locking the roller 21d is disposed at the start end C1. The elastic member 27 is formed by a bent leaf spring. The elastic member 27 includes a flat portion 27a that is screwed in contact with the rear edge plate portion 13b of the column portion 13, and a locking portion 27b that is bent in a mountain shape, and the apex of the locking portion 27b is the starting end C1. It arrange | positions so that it may protrude in the axial part 19 side.

  The roller 21d gets over while pressing the locking part 27b when passing through the locking part 27b. The locking portion 27b is elastically deformed during the passage of the roller 21d, is restored after the passage of the roller 21d, and locks the roller 21d in a fixed position. As a result, an initial load acting on the roller 21d stopped at the starting end C1 is increased, and a latching action for preventing the door body 5 from opening is achieved. Since the roller 21d is made of resin, it is possible to suppress wear of the locking portion 27b when getting over the locking portion 27b. Further, since the roller 21d gets over the locking portion 27b while rotating, the contact surface changes and it becomes difficult to wear at one place, and the door body 5 moves smoothly.

  The door structure 30 </ b> A of the dishwasher 1 </ b> A includes the door body 5, the shaft portion 19, the hinge portion 21, the roller 21 d, and the elastic member 27.

  In the dishwasher 1A described above, the opening movement when the door body 5 is opened can be regulated by the roller 21d, and the door body 5 can be kept closed by a simple configuration in which the roller 21d is locked by the elastic member 27. . As a result, the number of parts can be reduced as compared with a case where a door latch mechanism and a door lock mechanism are separately provided, and the door body 5 can be reliably held in a closed state by a simple configuration. Furthermore, since the structure is simple and the number of parts can be reduced, the manufacturing cost can be kept low, it is difficult to break, and maintenance is easy. Furthermore, since the elastic member 27 is formed by a leaf spring, the locking portion 27b can be easily formed only by bending the leaf spring.

  In addition, hot hot water from the nozzle is sprayed at the start of dish washing, and the internal pressure of the washing chamber 3 is increased at a stretch. However, since the door body 5 is reliably kept in a closed state, there is no leakage of hot water or the like, and safety is ensured. high.

  In addition, in the dishwasher 1A, it is preferable to make the width of the opening S as wide as possible in order to facilitate loading and unloading of the rack. In the dishwasher 1A according to the present embodiment, since the left and right hinge portions 21 are plate-shaped steel materials extending along the front-rear direction, even if the width of the opening S is wide, the remaining narrow width dimension can be easily obtained. Can be matched.

  Further, when the roller 21d is worn or damaged, the arm portion 21c of the hinge portion 21 comes into contact with the front edge plate portion 13a of the support column portion 13 to restrict the opening of the door body 5. As a result, the dishwasher 1A can be used continuously until the roller 21d is replaced.

  Moreover, since the dishwasher 1A can remove the door main body 5 and the hinge part 21 easily by removing the outer skin | plate 7 at the front side of the machine room 11, the dishwasher 1A is arrange | positioned without a gap by the right and left walls. Even if it is, maintenance can be easily performed from the front side.

  Even when the outer plate 7 of the machine room 11 is removed and the internal equipment is inspected and maintained, the roller 21d, the elastic member 27, and the like are hidden by the support column 13, so the appearance is good.

(Second Embodiment)
Next, the dishwasher 1B which concerns on 2nd Embodiment with reference to FIGS. 8-10 is demonstrated. In addition, about the dishwasher 1B, it demonstrates centering around the structure different from the dishwasher 1A which concerns on 1st Embodiment, attaches | subjects the same code | symbol about the same structure, and abbreviate | omits description.

  In the vicinity of the starting end C1 of the roller 21d, the elastic member 31 is fixed to the support column 13. The elastic member 31 (see FIG. 10) is formed by a bent leaf spring. The elastic member 31 includes a flat portion 31a that abuts on the rear edge plate portion 13b of the C-shaped support column 13 and is screwed, and a first locking portion 31b that is formed on the lower side so as to sandwich the flat portion 31a. And a second locking portion 31c formed on the upper side. The first locking portion 31b is bent in a mountain shape so as to protrude toward the shaft portion 19 at the starting end C1, and has the same action as the locking portion 27b according to the first embodiment.

  On the other hand, the second locking portion 31c is arranged such that two peak portions are arranged, and the top portions of the second locking portions 31c protrude toward the shaft portion 19 side on the track C, and the valley between the peak portions and the peak portions. The roller 21d is locked by the portion 31d. Of the elastic member 31, the lower side where the first locking portion 31b is formed functions in the same manner as the elastic member 27 according to the first embodiment, and the upper side where the second locking portion 31c is formed. It functions as another elastic member.

  The roller 21d gets over while pressing the locking portions 31b and 31c when passing through the locking portions 31b and 31c. Each of the locking portions 31b and 31c is elastically deformed by the passage of the roller 21d, and is restored when the roller 21d passes to lock the roller 21d at the valley portion 31d. As a result, the roller 21d can be held at an arbitrary position on the track C, and the door body 5 can be held at a position other than the fully closed and fully opened positions.

  The door structure 30 </ b> B of the dishwasher 1 </ b> B includes the door body 5, the shaft portion 19, the hinge portion 21, the roller 21 d, and the elastic member 31.

  According to the dishwasher 1B, the door body 5 can be stopped at any position other than fully closed and fully opened, that is, at any opening. As a result, for example, the inside of the cleaning chamber 3 can be cleaned with a rinsing nozzle or the like after the end of work, and thereafter the door body 5 can be held in a slightly opened state to dry the chamber. As a result, compared to the case where the door body 5 is fully opened and dried, it is less likely to obstruct traffic, and further, dust and dust are less likely to enter the cleaning chamber 3.

  Further, in the second embodiment, the door body 5 can be held in the closed state and the open state can be held at an arbitrary intermediate position by one elastic member 31, and the number of parts is reduced.

  In addition, the location which latches roller 21d by the 2nd latching | locking part 31c is not limited to two places, Three or more places may be sufficient. Moreover, the elastic member which forms the 1st latching | locking part 31b and the 2nd latching | locking part 31c can also be formed with another leaf | plate spring.

  The present invention is not limited to the above-described embodiment, and may be applied to other equipment such as an ice making machine as long as it has the same configuration.

It is a perspective view showing a 1st embodiment of a door structure concerning the present invention. It is a side view of the hinge part and elastic member which show the state which the door main body opened fully. It is a perspective view of the hinge part and elastic member which show the state which the door main body opened fully. It is a side view of a hinge part and an elastic member which show the state where a door body was fully closed. It is a perspective view of a hinge part and an elastic member which show the state where a door body was fully closed. It is a side view of the hinge part which concerns on 1st Embodiment. It is an enlarged view of the elastic member which concerns on 1st Embodiment. It is a side view of the hinge part and elastic member which concern on 2nd Embodiment. It is a perspective view of the hinge part and elastic member which concern on 2nd Embodiment. It is an enlarged view of the elastic member which concerns on 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 5 ... Door main body, 9 ... Washing machine main body (chassis main body), 13a ... Front edge board part (contact part), 15 ... Front opening frame part, 9 ... Shaft part, 21 ... Hinge part, 21d ... Roller (stopper) Part), 27, 31 ... elastic member, 27b, 31b ... locking part (first locking part), 30A, 30B ... door structure, 31c ... second locking part, C ... track, C1 ... start end, C2 ... Termination.

Claims (4)

A hinge part is rotatably attached to a shaft part provided on the front side of the housing body having a front opening frame part that forms an opening part, and the door body is fixed to the hinge part so that the opening part can be opened and closed. In the door structure of the case
A stopper provided on the hinge for restricting the opening of the door body by abutting against a contact portion disposed at the rear of the front opening frame at the end of the track when the door body is opened; ,
When the stopper body is disposed at the start end of the track of the stopper portion, elastically deformed by the pressing of the stopper portion when the stopper portion passes, and restored after passing the stopper portion, and the door body is closed. And an elastic member to be engaged with the door.   2. The housing according to claim 1, wherein the elastic member is formed by a leaf spring having a first locking portion that protrudes toward the shaft portion at the start end of the track of the stopper portion. Body door structure.   The other elastic member is formed by a leaf spring having a second locking portion that protrudes toward the shaft portion in the middle of the track of the stopper portion. Housing door structure.   The door structure of the housing according to claim 1, wherein the stopper portion is a rotatable resin roller.

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