JPH11117595A - Door locking mechanism of cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the locking mechanism of a cabinet, by which a safety measure, by which a door is locked surely to an impulse at the time, etc., of the generation of an earthquake and flying-out to the outside of tableware, etc., can be prevented certainly, is realized and convenience, in which the open- close operation of the door at the time of normal usage is conducted extremely easily, is improved. SOLUTION: In the door locking mechanism 8 of the cabinet, a cabinet body, in which a front is opened, and a revolving type door opening and closing the front of the cabinet body are locked at the closed place of a door 5. The door locking mechanism 8 has a fixed pawl 11 installed to the door rotary-end corresponding section of the cabinet body, a movable pawl 12 rotatably mounted at the rotary end of the door 5 and retained to the fixed pawl 11 at the closed place of the door 5, and a knob 13 being projected from the rotary end of the door 5 and releasing and operating the movable pawl 12 from the fixed pawl 11 by movement in the opening direction of the door 5 at that time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism for a cabinet installed at a high place such as a house, for example, as a hanging tableware drying cabinet. The present invention relates to a lock mechanism for a cabinet, which has safety measures that can prevent the tableware and the like from escaping to the outside by being locked and can easily open and close a door during normal use.

[0002]

2. Description of the Related Art In recent years, kitchen cabinets such as a dish drying cabinet, a draining cabinet, a seasoning cabinet, an oven grill range, a cloth storage cabinet, and a small cabinet have been increased in height from the viewpoint of convenience to housewives. Installed cabinets, so-called eye zone cabinets, are becoming popular.

[0003] Usually, such a cabinet is of a hanging type on a bottom surface of a bottom plate of a hanging cabinet, in which a front door rotates upward with an upper end as a fulcrum, or a sliding type which is further slid toward the back after further rotation. Often, it is a type that can be stored horizontally in a room.

[0004] As a problem in the case of such a cabinet arranged at a high place, it is pointed out that there is a danger that the stored items may jump outward when an earthquake occurs or the like. In particular, in the case of a dish drying cabinet, plates, bowls, cups, and the like made of fragile setware or glass are stored, and it is extremely dangerous if these pop out.

[0005]

Conventionally, a door lock mechanism of an eye zone cabinet which addresses such a problem is mainly of a type in which an open / close end of a door is attracted to a cabinet body by using a magnet or the like. There are things. However, there is a certain limit to the attraction force of this magnet, and it is not always possible to obtain a sufficient locking function against severe shaking such as when an earthquake with a large seismic intensity occurs.

On the other hand, as a door lock mechanism for various storage devices, a device using a hook formed of a hook-shaped metal fitting or the like is known. However, most of the conventional ones rotate the handle at right angles to the surface of the door for the locking operation, and the door can be locked securely. And the release must be performed by a separate operation separate from the door opening and closing operation, the operation is two steps, and it is troublesome, and it is often used in kitchen cabinets such as dishwashers that open and close the door relatively frequently during normal use. When applied, usability is not good.

The present invention has been made in view of such circumstances, and a safety measure which can reliably lock a door against an impact at the time of an earthquake or the like to reliably prevent tableware and the like from jumping outside. It is an object of the present invention to provide a lock mechanism for a cabinet that can realize the improvement of convenience and the convenience of opening and closing the door during normal use.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a cabinet having an open front and a pivotable door for opening and closing the front of the cabinet are provided. A door lock mechanism for a cabinet that locks at a closed position of a door, comprising: a fixing claw provided at a portion corresponding to a door rotation end of the cabinet main body; A movable claw locked to the fixed claw in a closed position; and a knob protruding from a pivotal end of the door and releasing the movable claw from the fixed claw by moving the door in an opening direction. A door lock mechanism for a cabinet is provided.

According to a second aspect of the present invention, in the door locking mechanism for a cabinet according to the first aspect, the movable claw is urged by a spring in a direction to be locked to the fixed claw, and a pressing force in a closing direction of the door. The structure of the present invention provides a door lock mechanism for a cabinet, wherein the tip of the movable claw rides over and locks the tip of the fixed claw against the elastic force of the spring.

According to a third aspect of the present invention, in the door lock mechanism for a cabinet according to the second aspect, the movable claw and the knob are integrally formed, and are rotatably supported by the door by one support shaft. A cabinet locking mechanism is provided.

According to a fourth aspect of the present invention, in the cabinet door lock mechanism according to the third aspect, the knob is arranged with a gap with respect to a front surface of the cabinet main body so that a finger of a hand can be inserted. To provide a door lock mechanism for a cabinet.

According to a fifth aspect of the present invention, in the cabinet door lock mechanism according to the fourth aspect, the knob has a shape in which a tip side is gradually curved in a direction away from the cabinet body. A locking mechanism is provided.

According to a sixth aspect of the present invention, in the cabinet door lock mechanism according to any one of the first to fifth aspects, the cabinet is a dish-drying cabinet, a drainage cabinet, a seasoning cabinet, and an oven grill which are arranged at a high place. Provided is a cabinet door lock mechanism, which is characterized by being a range, a cloth storage, an accessory shelf, and other similar cabinets.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cabinet door lock mechanism according to the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show an embodiment applied to a tableware drying cabinet. FIG. 1 is an enlarged cross-sectional view showing a main part of a door lock mechanism, FIG. 2 is a perspective view showing an entire configuration of a tableware drying cabinet, and FIG. 3 is a side view showing the entire configuration.
FIG. 4 is an exploded perspective view showing, on an enlarged scale, essential components of the door lock mechanism, and FIG. 5 is a rear view of the same.

As shown in FIG. 2, the tableware drying cabinet 1, which is a cabinet of the present embodiment, is suspended from an upper structure 2 such as a hanging cabinet via a hanging fitting or the like (not shown). The cabinet body 3 of the dish drying cabinet 1 has a horizontally elongated box shape, has an open front surface, is provided with a table stand 4 for hot dishes, a hot air supply mechanism (not shown), and a drain plate (not shown) on a bottom plate portion. A hose or the like is attached.

An upper opening type door 5 is provided in a front opening portion of the cabinet body 3. The door 5 comprises a rectangular frame 6, and a transparent plate
And a configuration having: A door lock mechanism 8 for locking the door 5 at the closed position shown in FIG. 1 is provided substantially at the center of the lower end of the frame 5 of the door 5 which is the rotating end. The cabinet body 3 is provided with operation switches 9 and circuit components (not shown).

FIG. 3 shows the opening / closing structure of the door 5 and its operation. As shown in FIG. 3, the door 5 is of a type that can be turned upward on the front side of the cabinet body 3 with the upper end as a fulcrum a, and can be horizontally stored in a sliding manner toward the back after turning. I have. That is, the door 5
The fulcrum a is formed by supporting a shaft provided on the outer side of the frame 6 on both sides on the inner surfaces of both side walls of the cabinet main body 3. The door can be opened and rotated by rotating a certain lower end part toward the front side of the cabinet body 3 and gradually lifting it. When the door 5 is lifted to a substantially horizontal position by the opening rotation, the fulcrum a portion is free toward the back of the cabinet body 3. Then, in this horizontal state, the door 5 can be slid and housed in the door storage guide section 10 provided on the upper part of the cabinet body 1 toward the rear side of the cabinet body 1.

When the door 5 is pulled out of the storage state toward the front of the cabinet main body 1, the fulcrum a is moved to the front end of the cabinet main body 1 again.
And the door 5 can be closed and rotated downward. The closing rotation can be performed by using the weight of the door 5, and when the door 5 becomes substantially vertical and reaches the closed position on the front surface of the cabinet body 1, the door provided at the lower end of the door 5 is provided. The lock mechanism 8 locks the door 5 at its closed position.

As shown in FIG. 1, the lock mechanism 8 includes a fixed claw 11 provided at a center position of a front edge of a lower end corresponding to a door rotation end of the cabinet body 3 and a lower end which is a rotation end of the door 5. A movable claw 12 that is rotatably provided on the unit and is locked by the fixed claw 11 at the closed position of the door 5, and a movable claw that protrudes downward from the lower end of the door 5 and moves in the opening direction of the door 5. The configuration includes a knob 13 for releasing the fixed claw 11 from the fixed claw 11.

More specifically, the fixed claw 11 is, for example, an inverted base L-shaped angle base 14 having a constant width in a side view.
Is provided with a downward locking claw portion 15 at the end of the horizontal portion 14a, and the vertical portion 14b of the angle-shaped base portion 14 is provided with a vertical front surface 16a of a frame provided at the lower front portion of the cabinet body 1. Is in contact with And
A support pillar 17 integrally projecting from the vertical portion 14b of the angle base 14 is fixed to the back side of the frame 16 by a fixing tool 18 such as a screw. The locking claw portion 15 hangs substantially vertically downward at a position separated from the front surface of the frame 16 of the cabinet body 1 by a predetermined distance, and the front surface 15a of the locking claw portion 15 faces the downward claw tip side. It has a gentle slope that gradually becomes thinner toward it.

On the other hand, the movable claw 12 has a boss portion 20 rotatably supported by a horizontal support shaft 19 fixed to the frame 6 of the door 5, and gradually lowers from the boss portion 20 to the back side of the door 5. An arm portion 21 protruding with an inclination, and a locking claw portion 15 of the fixed claw 11 formed at the tip of the arm portion 21.
And an upwardly engaging locking claw portion 22 corresponding to. The locking claw 22 of the movable claw 12 rises vertically so as to lock the locking claw 15 of the fixed claw 11 from below at a position where the door 5 covers the front surface of the cabinet body 1. The tip side surface 22a is a gently inclined surface that gradually becomes thinner toward the upward nail tip side.

The movable claw 12 is turned upward by a spring 23 which will be described later provided around the support shaft 19.
That is, the movable claw 12 is always urged to the fixed claw 11 at the closed position of the door 5 as shown by a solid line in FIG. The state is maintained. The greater the locking depth of the claws 11, 12, the more reliable the locking action. Further, when the door 5 is moved from the open state to the closing direction, the first and second stoppers 24 and 12 come into contact with substantially the same height by a first stopper 24 described later. Due to the abutting action of the two claws 11, 12, the inclined front surface 15 a of the locking claw 15 of the fixed claw 11, the distal end side of the locking claw 22 of the movable claw 12 inclined in a direction opposite to this. The front surface 22a slides downward by the pressing force at the time of the closing operation of the door 5 so that the fixed claw 11
Of the spring 23 over the elastic force of the spring 23, and the locking claws 15, 22 are locked to each other.

A knob 1 for operating the movable claw 12
Reference numeral 3 is integrally formed of the same material as the movable claw 12 (for example, polyacetal). That is, the knob 13
Is directly connected to the boss portion 20 of the movable claw 12, protrudes downward from the lower end of the door 5, and is supported by the support shaft 19 together with the movable claw 12 so as to be integrally rotatable within a certain angle range. Also,
The knob 13 is arranged with a gap in which a finger of a hand can be inserted with respect to the front surface of the cabinet body 1, and the tip side (lower end side) of the knob 13 is curved in a direction to gradually separate from the cabinet body 1. Shape.

When the user inserts his / her finger on the back side of the knob 13 and turns it toward the front side of the door 5 (in the direction of arrow b in FIG. 1), the movable claw 12 is turned by the turning of the knob 13. When the movable claw 12 is disengaged from the fixed claw 11 as shown by a virtual line in FIG. 1
3 contacts a second stopper 25 provided on the door, which will be described later,
Thereafter, it can rotate integrally with the door 5. Then, after releasing the locked state, the user lifts the knob 13 used for releasing the lock, and
Is further rotated in the opening direction (b), so that the opening rotation of the door 5 itself can be continuously performed by a series of operations from unlocking.

Next, using FIGS. 4 and 5 together with FIG. 1, detailed components such as the movable claw 12, a spring 23 for urging the movable claw 12, and the movable claw 12 contacting the fixed claw 11 will be described. The configuration of the first stopper 24 for stopping at the position, the second stopper 25 for stopping the knob 13 at the position where the movable claw 12 is unlocked from the fixed claw 11, and the like will be described.

As shown in FIG. 4, the movable claws 12 are formed as a pair of left and right sides, and these are arranged in parallel at regular intervals within the width of the fixed claws 11. A shaft hole 26 is formed in each boss 20 of each of the movable claws 12 so that the support shaft 19 can be inserted therethrough. The knob 13 is provided continuously below the two bosses 20 and has a single-plate structure in which the lower end side is a stepped portion and widened as a knob. Further, a single wide support plate 27 is provided to support the movable claw 12 and the knob 13. A pair of right and left claw insertion holes 28 for passing the locking claws 12 are formed in the support plate 27, and a support shaft 19 is provided on one side surface of the support plate 27 with the locking claws 12. A pair of shaft supports 30 each having a shaft hole 29 for supporting on both outer sides
Is protruding.

As shown in FIG. 5, the support shaft 19 is inserted into and supported by the shaft support 30 of the support plate 27, and each boss 20 of the movable claw 12 is supported by the support shaft 19.
Further, for example, a torsion coil spring as the spring 23 is mounted around the center of the support shaft 19. The spring 23 is attached so as to apply elastic force between the front side of the support plate 27 and the front side of the knob 13, so that the movable claw 12 is engaged with the fixed claw 11 (upward direction). Being energized. The support plate 27 is provided with a plurality of upper and lower positioning contact plates 31 and 32 for attaching the door 5 to the frame 6, and a fixing tool insertion hole 33.

As shown in FIG. 1, the support plate 27 is assembled with the contact plates 31, 32 in contact with the rear surface of the frame 6 of the door 5. That is, the upper bolt insertion hole 33 is inserted into the groove of the parallel bar 34 a protruding from the upper portion on the back side of the frame 6.
The upper side of the support plate 27 is fixed to the frame 6 by a fixing tool 35 such as a screw inserted into this portion, and a bent portion whose lower end protruding from the lower surface on the back side of the frame 6 faces the parallel portion. A locking metal fitting 34c with a screw hole is fitted into the dovetail portion of the small bar 34b, and the supporting plate 27 and the locking metal fitting 34c are opposed to each other so as to sandwich the bent front end of the bar 34b in a sandwich shape, and inserted into this portion. One layer is firmly fixed to the lower side of the support plate 27 by a fixing tool 35 such as a screw.

When the movable claw 12 and the knob 13 are assembled into the frame 6 via the support plate 27 in this manner, and the door 5 is open and the movable claw 12 is not locked to the fixed claw 11, the spring 23 The movable claw 12 abuts on the upper end of the claw insertion hole 12 of the support plate 27 by the elastic force of. That is,
The upper end of the claw insertion hole 12 is the first stopper 2
4, and the movable claw 12 is held at a position where the movable claw abuts on the fixed claw 11.

The lower end of the frame 6 is thinner than the upper part of the frame 6. The lower end of the thin frame 6 faces the knob 13. Therefore, when the door 5 is in the closed state and the movable claw 12 is locked to the fixed claw 11, the knob 13 is operated to release the lock, and when the knob 13 moves forward of the door 5, The knob 13 comes into contact with the lower end of the frame 6. That is, the lower end of the frame 6 serves as a second stopper 25 that receives the knob 13 at the unlocked position.

The frame 16 of the cabinet body 1 shown in FIGS.
A sealing material 36 is provided over the entire peripheral edge on the front side of the door, and a protruding edge-shaped sealing member 37 protruding from the back surface of the frame 6 of the door 5 abuts, and steam generated at the time of drying the tableware is directed outward from the cabinet body 1. Leakage can be prevented. This sealing material 36 is made of a hollow elastic material,
It protrudes forward from the frame 16 and the frame 6 of the door 5 comes into strong contact with the frame 16 to be recessed, so that an airtight seal can be achieved and dust and insects can be reliably introduced into the cabinet body 1 from the outside. The hygiene effect is also sufficiently achieved.

According to the configuration of the above embodiment, when the door 5 is closed, the movable claw 12 is always urged by the spring 23 in the direction in which the movable claw 12 is locked to the fixed claw 11, so that the movable claw 12 is always fixed. The door 5 is in a locked state in which the door 5 is locked, and even when vibration or impact occurs, for example, in the event of an earthquake, the door 5 is securely held in the closed state by the locking action, and the tableware and the like are reliably prevented from jumping out. Safety measures that can be implemented.

Further, the user can easily remove the movable claw 12 from the fixed claw 11 by inserting the finger of the hand into the back side of the knob 13 and rotating it toward the front side of the door 5. Can be easily unlocked. In addition, when the knob 13 is rotated to the maximum, the knob 13 contacts the second stopper 25 provided on the door, and thereafter can be rotated integrally with the door 5, so that the knob 13 is used for unlocking. By lifting the knob 13 as it is and rotating the door 5 further in the opening direction, the opening rotation of the door 5 itself can be continuously performed by a series of operations from unlocking.

When the door 5 is to be changed from the open state to the closed state, the movable stopper 12 is brought into contact with the fixed claw 11 at substantially the same height by the first stopper 24, and the locking claw portion 1 of the fixed claw 11 is engaged.
5, the front surface 2a of the locking claw portion 22 of the movable claw 12 inclined in a direction opposite to the inclined front surface 15a.
2a slides downward by the pressing force at the time of the closing operation of the door 5 and moves over the tip of the fixed claw 11 against the elastic force of the spring 23, so that the locking action can be performed reliably and easily.

Further, in the present embodiment, since the knob 13 is curved in a direction away from the front surface of the cabinet body 1, a gap for a user to insert his hand between the cabinet body 1 and the knob 13 is formed. The stroke of the knob 13 after the knob 13 moves to the front side of the door 5 until the second stopper 25 comes into contact with the second stopper 25, that is, the operating range until the movable claw 12 comes off the locking claw 11 can be set as the knob 13. Due to the curved concave portion, it can be set to be larger than that in the case where this is a flat plate shape. Therefore, within the limited operation range that can be set between the cabinet body 1 and the knob 13, the stroke of the knob 13 and the locking depth of the movable claw 12 to the fixed claw 11 can be maximized. As a result, the lock holding force can be set larger accordingly.

The present invention is not limited to the above embodiment, and various changes and applications are possible. For example, FIG. 6 shows a configuration in which the knob 13 is formed in the shape of a bent plate having a “U” shape. With such a configuration, substantially the same effects as in the above-described embodiment can be obtained.

In the above embodiment, the present invention is applied to a dish drying cabinet. However, other similar cabinets, such as a high-placed drainage shelf, a seasoning shelf, an oven grill range, a dishcloth storage, and small articles The same can be applied to a shelf or the like.

Further, according to the door lock mechanism of the present invention, the magnet type lock mechanism conventionally used in this type of cabinet is not required. Utilization can be used to further improve the lock function.

Further, in the above-described embodiment, since the claw constituting member is made of polyacetal, a lightweight and high-strength structure can be realized. However, this is merely an example, and other resins or light metals can be used.

[0041]

As described in detail in the above embodiments, according to the cabinet locking mechanism of the present invention, the door is securely locked against an impact at the time of an earthquake or the like, so that the door can be externally mounted. An excellent effect is achieved in that safety measures that can reliably prevent popping out and that the convenience of opening and closing the door during normal use can be extremely easily improved can be achieved.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a main part of a door lock mechanism of a cabinet (dishware drying cabinet) according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the entire configuration of a dish drying cabinet in the embodiment.

FIG. 3 is a side view showing the operation of the tableware drying cabinet door in the embodiment.

FIG. 4 is an exploded perspective view showing, on an enlarged scale, essential components of a door lock mechanism in the embodiment.

FIG. 5 is an enlarged rear view showing constituent components of a main part of the door lock mechanism in the embodiment.

FIG. 6 is an enlarged sectional view showing a main part of a door lock mechanism of a dishware drying cabinet according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tableware drying cabinet 2 Upper structure 3 Cabinet main body 4 Bar 5 Door 6 Frame 7 Transparent plate 8 Door lock mechanism 9 Operation switch 10 Door storage guide part 11 Fixed claw 12 Movable claw 13 Knob 14 Angle base 15 Locking claw 14a Horizontal portion 14b Vertical portion 15a Front surface 16a Front surface 17 Support post 18 Fixing tool 19 Support shaft 20 Boss portion 21 Arm portion 22 Locking claw portion 22a Tip side surface 23 Spring 24 Stopper 25 Second stopper 26 Shaft hole 27 Support plate 28 Claw insertion hole 29 Shaft hole 30 Shaft support 31, 32 Positioning contact plate 33 Fixing tool insertion hole 34a, 34b Bar 34c Lock fitting 35 Fixing tool 36 Seal material 37 Seal member

Claims (6)

[Claims] 1. A cabinet body having an open front surface, and a pivotable door for opening and closing the front surface of the cabinet body.
A door lock mechanism for a cabinet that locks at a closed position of the door, comprising: a fixed claw provided at a portion corresponding to a door rotation end of the cabinet body; and a door rotatably provided at a rotation end of the door. A movable claw that is locked to the fixed claw at the closed position, and a knob that protrudes from the pivotal end of the door and releases the movable claw from the fixed claw by moving the door in the opening direction. A cabinet door lock mechanism characterized by that: 2. The cabinet door lock mechanism according to claim 1, wherein the movable claw is urged by a spring in a direction in which the movable claw is locked to the fixed claw, and the movable claw is pressed by a pressing force in a closing direction of the door. A cabinet door lock mechanism having a structure in which a tip of the fixing claw crosses and locks a tip of the fixed claw against the elastic force of the spring. 3. The cabinet door lock mechanism according to claim 2, wherein the movable claw and the knob are integrally formed, and are rotatably supported by the door by a single support shaft. Lock mechanism. 4. A cabinet door lock mechanism according to claim 3, wherein the knob is arranged with a gap with respect to a front surface of the cabinet body so that a finger of a hand can be inserted. mechanism. 5. A cabinet door lock mechanism according to claim 4, wherein the knob has a shape whose tip side is gradually curved in a direction away from the cabinet body. 6. The cabinet door lock mechanism according to claim 1, wherein the cabinet is a high-place tableware drying cabinet, a draining cabinet, a seasoning cabinet, an oven grill range, and a cloth storage cabinet. A cabinet door lock mechanism, which is a cabinet, accessory cabinet or the like.