JP3508974B2 - Selectable locking device for doors and drawers in cabinets - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides two or more stages of drawers on the lower side of a cabinet body so as to be movable back and forth, and has an opening / closing door on the front upper part, while at least one drawer is pulled forward, A lock mechanism configured to raise or lower the vertical rod to a stop position where the other drawer cannot be moved forward is provided, and an opening / closing door is provided with a latch claw that engages / disengages with the cabinet body at the closing position. The present invention relates to a selective lock device that can prevent the opening / closing door from opening when one of the drawers is pulled out, and can prevent the drawer from moving forward when opening the opening / closing door.

[0002]

2. Description of the Related Art Conventionally, for example, in Japanese Utility Model Publication No. 4-53425, two or more drawers are provided in a cabinet body so as to be movable back and forth, and an opening / closing door for covering the front surface of the drawer body is provided at the uppermost front surface. There is proposed a mechanism in which the opening / closing door is locked in the closed state when the drawer is pushed upward into the cabinet body and all the drawers are pushed into the cabinet body so as to perform all lock.

In Japanese Utility Model Publication No. 5-42216,
A multi-stage drawer is placed on the lower side of the cabinet body, and a double door opening / closing door is provided on the upper front side, and all the drawers and opening / closing doors can be locked at the same time with one cylinder lock device, while opening / closing There has been proposed a mechanism capable of separately performing an opening / closing operation of a door and an operation of holding a closed position thereof, and an all lock operation of only all drawers.

[0004]

However, in the above-mentioned prior art, while one of the workers bends down and pulls out one of the drawers that is pushed in at the lower side, another operator If an operator carelessly opens and rotates the upper opening / closing door, there is a problem that the opening / closing door collides with the head or the like of the worker who is bent over and is dangerous.

Similarly, when another worker pulls out the lower drawer while the operator opens the upper opening / closing door to take out and store the articles, the front of the drawer collides with the feet of the former operator. Then there was the problem that this too was dangerous. In any case, if the opening / closing door and the drawer are simultaneously brought out to the front side of the cabinet main body, there is a problem that a worker is in danger and it is difficult to take out and store the articles.

Therefore, it is an object of the present invention to provide a selective locking device capable of locking the other of the opening / closing door and the drawer when the other is being operated. is there.

[0007]

In order to achieve the above object, an opening / closing door and a selective lock device for a drawer according to a first aspect of the present invention is provided with a multi-stage drawer on the lower side of the cabinet body and on the upper front side. On the other hand, provided with an opening / closing door, when at least one drawer is pulled out forward, a lock mechanism configured to raise or lower the vertical rod to a lock position where the other drawers cannot move forward is provided. In a cabinet provided with a latch claw that engages and disengages with the cabinet body at the closed position, when the vertical rod moves to the lock position, an interlocking mechanism provided between the latch claw and the vertical rod causes the cabinet body to move. The operating rod arranged inside is brought close to the latch claw to hold the opening / closing door at the closed position.

The invention described in claim 2 is the same as claim 1.
The interlocking in the selection locking device door and drawer in the cabinet of the invention described, the cabinet body, provided with a regulating lever having an abutment portion which interlock with the rotation of the door, the regulating lever in When the opening / closing door is placed in the closed position in relation to the middle part of the mechanism, the operating rod is moved away from the latch claw by opening the opening / closing door or the drawer by retracting the regulating rod via the abutment portion. When the opening / closing door is opened and rotated, the regulating rod pushes the intermediate portion of the interlocking mechanism to move the vertical rod in the locking direction.

Further, the selective lock device for the opening / closing door and the drawer in the cabinet according to the third aspect of the present invention comprises a multistage drawer on the lower side of the cabinet main body, and an opening / closing door on the upper front side, while the cabinet main body The lock mechanism is configured to raise or lower the vertical rod to the lock position where the pushed drawer cannot be moved forward, and the opening / closing door is provided with a latch claw that engages / disengages with the cabinet body at the closing position. In the cabinet, a stopper mechanism for the vertical rod is provided in the cabinet body, while a regulating body is provided on the opening / closing door, and when the opening / closing door is opened and rotated, the regulating body moves away from the stopper mechanism to lock the vertical rod. held in position, and when the door in the closed state, the prohibition of the elevation motion of the longitudinal rod the regulating member is brought into contact with the stopper mechanism It is obtained by configured to be released.

Further, the invention according to claim 4 is the selective lock device for an opening / closing door and a drawer in a cabinet according to claim 3, wherein when the vertical rod moves to a lock position, the latch claw and the An interlocking mechanism provided between the vertical rod and the operating rod arranged in the cabinet body is configured to approach the latch claw to hold the open / close door in the closed position. The stopper mechanism is arranged.

According to a fifth aspect of the present invention, in the opening / closing door and the selective lock device for the drawer in the cabinet according to the third or fourth aspect, the stopper mechanism is in a state of protruding by a spring bias. While preventing the movement of the vertical rod, when the opening / closing door is moved in the closing direction, a stopper provided on the opening / closing door causes the stopper mechanism to move backward against the urging direction. It is composed.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a preferred embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 is a cabinet main body, and reference numeral 2 is arranged in the lower portion of the cabinet main body 1 in multiple stages. A drawer is shown, and each drawer 2 is suspended movably back and forth via a pair of left and right suspensions 3, 3. A double-door type door 5 is attached to the upper part of the front surface of the main body 1 of the cabinet via a hinge 6.

Each of the suspensions 3 has a body rail 3a having a lateral U-shaped cross section which is detachably attached to the reinforcing frames of the left and right side plates 4 and 4 of the cabinet body 1, and a rotating roller (not shown) in the body rail 3a. Middle rail 3b fitted in the front and rear movably through the left and right side plates 2 of the drawer 2.
a, 2a and a drawer rail 3c having an L-shaped cross section.

Next, referring to FIGS. 3 to 6, the lock mechanism for preventing the double drawers 2 of a plurality of stages from being pulled out twice will be described. The stopper bodies 7, 7 projecting outward from the rear portions of the left and right side plates 2a, 2a of each drawer 2 in both left and right directions are such that their lower surfaces are higher in the rear position of the drawer in side view and lower in the front position. A metal plate is bent and formed so as to be provided with a downwardly inclined surface 7a having a so-called forward downward inclination so as to be positioned. A vertical rod 8 that can move up and down along the left and right side plates 4 and 4 of the main body of the cabinet is disposed along a guide frame 9 having a U-shaped cross section, and is perpendicular to the rear surface of the main body rail 3a of the drawer 2 of each stage. Cross in the direction.

The lock body 10 made of a synthetic resin such as polyacetal resin is provided on one or both of the vertical rods 8 at an appropriate height position on the upper surface side of the suspension 3 of each stage corresponding to the drawer 2 of each stage. The lock body 10 is rotatably attached via a support shaft 11 projecting from a metal support body 15 to which a screw 16 is fixed, and each lock body 10 is rotated at a front end portion with respect to the support shaft 11 in a side view. Has a hole that can be freely inserted,
The upper surface of the lock body 10 has an abutting inclined surface 12 that becomes higher toward the rear of the cabinet body 1.

On the lower surface side of the lock body 10, an elastic spring body 13 extending rearward and downward from the front end portion is integrally formed so as to project. The elastic spring body 13 has a middle portion on the lower surface.
The protruding portion 14 integrally projects downward, and the elastic spring body 13
The free end side of is curved upward.

Elastic spring body 1 in each lock body 10
3 is slidably mounted on the upper surface of a locking portion 17 formed by bending on each of the supporting bodies 15, whereby each locking body 10
Is capable of maintaining a posture in which the rear end side does not fall downward, the projection 14 of the elastic spring body 13 contacts the front surface of the locking portion 17, and a forward external force acts on the rear surface of the lock body 10. Is also configured such that the lock body 10 does not rotate upward.

An intermediate rail 3b is provided at a midway portion in the front-rear direction on the upper surface of the main body rail 3a in each of the suspensions 3 of the respective stages.
While the upper surface of the intermediate rail 3b has a cutout portion 18 that is open, a flat bottom surface 20a and a top surface 19 are formed at a middle portion of the upper surface 19 of the intermediate rail 3b in the front-rear direction.
And a guide portion 20 including front and rear inclined guide surfaces 20b and 20c that communicate with each other.

A push-up body 21 for the vertical rod 8 is integrally provided at the lower end of the support body 15 for supporting the lock body 10.
A slider 22 is attached to the lower end of the push-up body 21, and the slider 22 of the push-up body 21 is arranged so as to face the upper surface of the intermediate rail 3b from the cutout portion 18 of the main body rail 3a. When the drawer 2 is pushed in, the slider 22 abuts on the flat bottom surface 20a, and as the drawer 2 or 6 is moved forward, the intermediate rail 3 is moved.
b moves back and forth, and the slider 22 moves the intermediate rail 3
The flat bottom surface 20a of the guide portion 20 of b is brought into contact with the upper surface 19 through the rear slanted guide surface 20c so as to push up the vertical rod 8 by the dimension (h1) and raise it. Each slider 22 is made of synthetic resin such as polyethylene in order to reduce sliding resistance when it comes into contact with the upper surface 19 of the intermediate rail 3b and the guide portion 20.

The all-lock mechanism 25 for the drawers 2 of the plurality of stages shown in FIG. 3 includes a lock 26 attached to the front surface of the intermediate frame 24 of the cabinet body 1 and the lock 26 for locking and unlocking with the key 27. Eccentric member 28
And a vertically movable rod 30 which is disposed orthogonal to the crank body 29 and which has end portions inserted into the vertically elongated holes 31, 31 of the left and right vertical rods 8, 8.

Therefore, when the lock 26 is rotated in the locking direction by the key 27, the lifting rod 30 is raised through the eccentric member 28 and the crank body 29, so that all the drawers 2 are pushed into the cabinet body 1. And each drawer 2
Since the vertical rod 8 rises so that the vertical portion of the rear surface of the lock body 10 faces the front surface (vertical portion) of the stopper body 7 in, the pulling out of all the drawers 2 can be prevented.

When the all lock mechanism 25 is unlocked, the vertical rods 8 and 8 are lowered, and the sliders 2 on the vertical rod 8 are moved.
2 contacts the flat bottom surface 20a of the intermediate rail 3b of each step, and the stopper body 7 can pass through the upper surface of the lock body 10 in the front-rear direction. Even if one of the drawers 2 is moved forward, the vertical rod 8 is raised and the rear surface of the lock body 10 of the other stage is located in front of the stopper body 7. You can prevent heavy withdrawal.

Even when two or more drawers 2 are accidentally pulled out at the same time, the vertical rod 8 is in a raised state so as to prevent the double withdrawal. When only one drawer 2 is pushed in from this state, the lower sloping surface 7a of the stopper body 7 in the pushing drawer 2 causes the lock body 10 to move upward.
The stopper body 7 can pass to the rear position of the lock body 10 while abutting the contacting inclined surface 12 of the lock body 10 and rotating the lock body 10 downward and rearward against the upward force of the elastic spring body 13. After passing, the lock body 10 is restored to its original posture by the elastic force of the elastic spring body 13, and the stopper body 7 at that stage can no longer move forward.

Since such rotation of the lock body 10 operates independently of each other by the contact with the stopper bodies 7 of the respective stages, even when the other drawer 2 is pushed in later, the rotation of the lock body 10 is also prevented. Stopper body 7 for step lock body 10
Abutting each other, and only the lock body 10 is attached to the elastic spring body 13
The pull-out preventing mechanism can be rotated one by one against the elastic force of, and the drawers 2 that have been accidentally pulled out can be pushed in one by one instead of simultaneously. Absent.

Needless to say, the lock 26 in the all-lock mechanism 25 may be an electric lock.

Next, the construction of the selective lock device for opening and closing the double door type opening and closing doors 5 and 5 on the upper front side of the cabinet body 1 and the operation of the drawer 2 will be described. Figure 1
As shown in FIG. 7 and FIG. 7, a vertically and vertically long latch shaft 40 is provided on the rear surface on the open end side of the one (right side in the embodiment) opening / closing door 5.
Is rotatably mounted, and the upper and lower ends of the latch shaft 40 are
Engagement hole 41 formed in front plate 1a of cabinet body 1
The latch claw 42 that is engaged and disengaged with the latch shaft 40 is fixed, and the tip end side of the pull tab 43 that is fixed to the upper and lower middle portions of the latch shaft 40 is exposed in the pull hole 44 on the front surface of the opening / closing door 5. The latch shaft 40 is biased in a direction in which the latch claw 42 is locked in the engagement hole 41 by a biasing means such as a torsion spring (not shown).

On the other hand, in the space portion of the intermediate frame 24 between the uppermost drawer 2 and the detachable bottom plate 47 in the storage portion 45 with the shelf plate 46 in the upper side of the cabinet body 1, The interlocking mechanism 48 of the selective locking device is arranged. That is, as shown in FIG. 3, a vertical bell crank lever 49 is arranged on the side surface of the upper end of one of the vertical rods 8 so as to be rotatable around a support shaft 50 that is attached to the cabinet body 1. The pin 52 that is attached to 49 is locked in the horizontally long hole 51 of the vertical rod 8 while the connecting rod 53 that is long in the front-rear direction is pin 54.
Connect with. One end of the horizontal bell crank lever 56 is connected to the horizontal slot 55 of the front end member 53a of the connecting rod 53 by a pin 57, and the horizontal bell crank lever 56 is horizontally rotated about a support shaft 58 mounted on the cabinet body 1. And a long groove 60 provided at the base end of the operating rod 59 whose tip extends in the direction of the latch claw 42 along the back surface of the front plate 1a of the cabinet body 1 and the other end of the lateral bell crank lever 56. The pin 61 is fitted and connected. The operating rod 59 is attached by a guide means 62 such as a long hole and a pin so as to be movable left and right only along the front plate 1a.

With this configuration, when any one of the drawers 2 is pulled out forward with the opening / closing door 5 closed, the stopper body 7 at that stage is set to the lock body 10 as shown by the one-dot chain line in FIG. While passing the upper surface forward, the intermediate rail 3
b moves forward, and the slider 2 at the stage is moved accordingly.
2 rises from the flat bottom surface 20a of the intermediate rail 3b to the upper surface 19 and raises the vertical rod 8 by the dimension (h1) via the push-up body 21.

Therefore, the rear surface of the lock body 10 is located on the front surface of the stopper body 7 on the side surface of the drawer 2 in the other stage, and further, the rear surface of the elastic spring body 13 of each lock body 10 projects to the lower surface of the middle portion. The protruding portion 14 that is in contact with the locking portion 17 of the support body 15 contacts the lock body 10.
Since the upward rotation is disabled, even if the stopper body 7 collides with the rear surface of the lock body 10 at a position higher than the support shaft 11, it is possible to prevent the drawer of that stage from moving forward. Prevent the drawer and main body 1
It is possible to prevent the forward fall of the vehicle.

When the vertical rod 8 is moved upward, the connecting rod 53 is moved forward in the direction of arrow A in FIGS. 7 and 8 through the rotation of the vertical bell crank lever 49, and the horizontal bell crank lever 56 is further moved. The operating rod 59 laterally moves in the direction of arrow B in FIGS. As a result, the tip of the operating rod 59 approaches the rear surface of the latch claw 42 locked in the engagement hole 41 in the front plate 1a, and thus the pull tab 43 and the latch shaft 40.
The latch claw 42 is prevented from rotating in the unlocking direction via the. Therefore, the opening / closing door 5 can be held in the closed state.

When the drawer 2 is not pulled out forward, the tip of the operating rod 59 is separated from the rear surface of the latch claw 42, so that the latch claw 42 is released in the unlocking direction via the pull tab 43 and the latch shaft 40. Allowing rotation, open / close door 5
Can be opened and rotated.

The stopper mechanism 64 disclosed in FIGS. 8 to 10 is a movable body 65 arranged in the intermediate frame 24 in the vicinity of the horizontal bell crank lever 56 and the front end member 53a of the connecting rod 53. A guide rod 67, which is composed of a spring 66 that biases the moving body 65 upward, and which projects downward from the moving body 65, is a guide tube 68 provided on the horizontal plate of the intermediate frame 24.
When the moving body 65 is in the raised position, the rear surface of the moving body 65 is the front end surface 69 of the front end member 53a.
To prevent the connecting rod 51 from moving forward (in the direction of arrow A).

On the other hand, one opening / closing door 5 near the hinge 6
The plate-shaped restricting body 70 projecting rearward from the rear surface is arranged so as to face the upper surface side of the moving body 65 via the insertion hole 71 of the front plate 1a. Further, as the opening / closing door 5 approaches the closed state, the restricting body 70 comes into contact with the inclined upper surface of the moving body 65 while rotating horizontally, and pushes down the moving body 65 against the force of the spring 66, and In the almost completely closed state of the opening / closing door 5, the front end face 69 portion of the front end member 53a can pass above the restriction body 70.

Therefore, if the opening / closing door 5 is closed and locked by the latch claws 42, as described above, if any drawer 2 is pulled out to the front of the cabinet body 1, the vertical rod 8 can be raised. Therefore, when the connecting rod 53 of the interlocking mechanism moves to the front of the cabinet body 1, the moving body 65 and the regulating body 70 do not interfere, and the operating rod 59 can prevent the rotation of the latch claw 42. On the other hand, when all the drawers 2 are pushed in and the opening / closing door 5 is opened and rotated, as shown in FIG. 10, the regulating body 70 is disengaged from the moving body 65, and the back surface of the moving body 65 is the front end portion. Since the front movement of the front end face 69 of the member 53a can be prevented, the vertical rod 8 can be prevented from rising, and thus the drawer 2 can be prevented from being pulled out forward. In this way, it is possible to realize a selective locking operation in which when one of the opening / closing door 5 and the drawer 2 is opened (pulled out), the other operation is blocked.

The guide surface for pushing up the vertical rod 8 in accordance with the forward movement of the drawer 2 may be not only the upper surface of the intermediate rail 3b but also another member protruding from the left and right side plates of the drawer 2. Further, the vertical rod 8 is lowered according to the front movement of the drawer 2, and at this time, the double pulling of other drawers is prevented. Then, the turning direction of the vertical bell crank lever 49 may be set so that the connecting rod 53 moves in the forward direction (direction of arrow A) in accordance with the downward movement of the vertical rod 8.

Further, the movable body in the stopper mechanism is movable in the horizontal direction and is biased by a spring so that the rear surface of the movable body faces the front end face 69 portion of the front end member 53a or the like when the movable body is in a protruding state. On the other hand, the restricting body 70 attached to the opening / closing door 5 may be horizontally rotated below the front end face 69 portion so as not to interfere with each other.

11 and 12 show another embodiment, in which the interlocking mechanism 75 is a connecting plate 76 fixed to the upper part of the vertical rod 8 which can be moved up and down on the inner surface of the side plate of the cabinet body 1 by welding or the like. And a pin 77 is connected to one end of the connecting plate 76,
In addition, a substantially L-shaped lever 80 having a midway portion pivotally supported by a pivot pin 79 at a bracket 78 provided on the upper part of the cabinet body 1 on the drawer side (below the bottom plate 47).
And a middle bar 81, which is arranged substantially parallel to the front surface of the cabinet body 1 and has one end connected to the upper end of the L-shaped lever 80 by a pin 82, and the other end of the middle bar 81 is connected by a pin 83, A horizontal bell crank lever 84 rotatable around a vertical pin 85, and the bell crank lever 8
4 is connected to the pin 86, and the latch claw 43 in the opening / closing door 5
Of the operating lever 87 extending in the direction of the back of the latch claw 43 by the bell crank lever 84, the operating rod 87 or the biasing spring 88 provided on the intermediate bar 81. Being energized. A middle portion of the operating rod 87 is slidably supported by a guide bracket 89.

In this structure, the connecting rod 76 is also integrally lifted by the vertical rod 8 which is lifted when the drawer 2 is moved forward, etc., thereby pushing the lower end of the lever 80 upward to rotate it, and the intermediate bar 81 By pushing the bell crank lever 84 in the direction of arrow C in FIGS. 11 and 12, the tip of the operating rod 87 of the operating rod 87 approaches the rear surface of the latch claw 43 (see the two-dot chain line state in FIG. 12). When trying to open the door 5 and remove the latch claw 43 from the engagement hole 41,
It does not come off. In other words, when one of the drawers 2 is pulled out, or when all the drawers 2 are locked, the opening / closing door 5 cannot be opened.

Then, as shown in FIGS. 11 and 12,
The bracket 90 is fixed to the middle bar 81 as a middle part of the interlocking mechanism 75, and the roller pin 91 is provided in the vertical direction.
A restricting rod 92 provided with an inclined surface 92a that comes into contact with the roller pin 91 is provided along the direction substantially orthogonal to the axis of the intermediate bar 81, and an abutting portion 95 provided at the tip of the restricting rod 92 is
A biasing spring 96 is provided in a direction of abutting against the back surface of the opening / closing door 5 (direction of arrow E in FIG. 12), and is slidably supported by two or more guide brackets 93 and 94.

Further, when the opening / closing door 5 is opened and rotated, when the contact portion 95 and the regulating rod 92 move in the direction of arrow E by the elastic force of the biasing spring 96, the inclined surface 92a of the regulating rod 92 has the roller pin 91. Since the middle bar 81 is forcibly moved in the direction of the arrow C by pressing, the upward movement of the vertical rod 8 blocks the forward movement of all the drawers 2.

When the opening / closing door 5 is closed, the contact portion 95
Also, the restriction rod 92 is pushed and moved in the direction of arrow F in FIG. 11 (FIG. 12), and the restraint of the movement of the roller pin 91 by the inclined surface 92a is released. Therefore, the elastic force of the biasing spring 88 causes the operating rod 87 to move. Since the tip end is set at a position away from the back surface of the latch claw 42, the opening / closing door 5 can be opened and rotated. Then, in the state where the opening / closing door 5 is closed, the vertical rod 8 is moved up and down, that is, without the movement of the regulating rod 92.
The locking / unlocking operation by the all lock mechanism 25 or the forward / backward movement of one drawer 2 makes the movement of the midway bar 81 in the directions C and D of FIG. 11 (FIG. 12) free.

Therefore, when the opening / closing door 5 is opened, the drawer 2 cannot be moved forward, and when the drawer 2 is moved forward, the opening / closing door 5 is prevented from being opened selectively.

The interlocking mechanism 75 and the control rod 9 are also provided.
2 and the like are arranged below the bottom plate 47 of the storage portion having the opening / closing door 5.

[0044]

As described above, the opening / closing door and the selective lock device for the drawer according to the present invention are provided with the multistage drawer on the lower side of the cabinet body and the opening / closing door on the front upper part. On the other hand, when at least one drawer is pulled out forward, a lock mechanism is provided that is configured to raise or lower the vertical rod to a lock position where the other drawers cannot move forward, and the open / close door is at the closed position. In a cabinet provided with a latch claw that engages and disengages with a cabinet body, when the vertical rod moves to a lock position, it is arranged in the cabinet body by an interlocking mechanism provided between the latch claw and the vertical rod. The operating rod is brought close to the latch claw to hold the opening / closing door at the closed position.

Therefore, when at least one drawer is pulled out forward, the vertical rod moves to the lock position where the other drawers cannot move forward, and along with this, the operating rod moves through the interlocking mechanism to engage the latch claws. Since the rotation in the stop direction is prevented, the opening / closing door cannot be opened, and it is possible to select only one operation of the opening / closing door or the drawer. Further, there is an effect that it is possible to prevent a danger due to the careless opening of the open / close door during the pulling operation of the lower drawer.

The invention described in claim 2 is the same as claim 1.
The interlocking in the selection locking device door and drawer in the cabinet of the invention described, the cabinet body, provided with a regulating lever having an abutment portion which interlock with the rotation of the door, the regulating lever in When the opening / closing door is placed in the closed position in relation to the middle part of the mechanism, the operating rod is moved away from the latch claw by opening the opening / closing door or the drawer by retracting the regulating rod via the abutment portion. When the opening / closing door is opened and rotated, the regulating rod pushes the intermediate portion of the interlocking mechanism to move the vertical rod in the locking direction.

Thus, when the open / close door is in the closed position,
Due to the contact portion, the regulating rod arranged in the middle part of the interlocking mechanism moves the interlocking mechanism backward, and the operating rod that prevents the rotation of the latch pawl on the opening / closing door separates from the latch pawl. While allowing opening, the interlocking mechanism allows the vertical rod to move freely, so it is possible to move any one of the drawers forward. Then, when the opening / closing door is opened and rotated, the regulating rod pushes the middle part of the interlocking mechanism to move the vertical rod in the locking direction. Withdrawal can be prevented.

According to a third aspect of the present invention, a multistage drawer is provided on the lower side of the cabinet body and an opening / closing door is provided on the front upper part, while the drawer pushed into the cabinet body is vertically slid to a lock position where it cannot be moved forward. In a cabinet in which a lock mechanism configured to raise or lower is provided, and a latch pawl that engages and disengages with the cabinet body at the closed position is provided on the opening / closing door, a stopper mechanism for the vertical rod is provided in the cabinet body. On the other hand, when the opening / closing door is provided with a restricting body, when the opening / closing door is opened and rotated, the restricting body moves away from the stopper mechanism to hold the vertical rod in the lock position and to close the opening / closing door. , The regulation
The body comes into contact with the stopper mechanism to move up and down the vertical rod .
The prohibition is lifted.

According to this structure, when the opening / closing door is opened and rotated, the restricting body provided on the opening / closing door is separated from the stopper mechanism, so that the vertical rod of the stopper mechanism cannot be moved in the locked position and the downward movement is prevented. The pulling operation of the drawer can be prevented, and conversely, when the opening / closing door is closed, the vertical rod can be moved up and down by contacting the stopper with the stopper mechanism. It is possible to perform a selection operation that is possible.

Furthermore, the invention according to claim 4 is the selective lock device for the opening / closing door and drawer in the cabinet according to claim 3, wherein when the vertical rod moves to the lock position, the latch claw and the vertical An interlocking mechanism provided between the rod and the operating rod arranged in the cabinet main body is configured to approach the latch claw to hold the opening / closing door at the closed position, and in association with the interlocking mechanism, A stopper mechanism is arranged.

Therefore, if any drawer is moved forward with the open / close door closed, the open / close door can be held unopenable through the vertical rod, the interlocking mechanism and the operating rod, while the open / close door is rotated to rotate the regulating body. Is disengaged from the stopper mechanism and can be held through the interlocking mechanism to prevent movement of the vertical rod so that all the forward movement of the drawer is disabled, and if the opening / closing door is closed, The provided restricting body comes into contact with the stopper mechanism, the movement of the interlocking mechanism becomes possible, and there is an effect that the selective lock operation that the operation of the drawer becomes possible becomes possible.

According to a fifth aspect of the present invention, in the opening / closing door and the selective lock device for the drawer in the cabinet according to the third or fourth aspect, the stopper mechanism disposed adjacent to the interlocking mechanism is provided. While the movement of the interlocking mechanism is configured to be blocked in the state of being projected by the spring bias, when the opening / closing door is moved in the closing direction,
The stopper mechanism is configured to be retracted against the urging direction by a restrictor provided on the opening / closing door.

Therefore, the structure of the stopper mechanism is extremely simple, and the selective locking operation can be automatically performed by closing and opening the opening / closing door.

[Brief description of drawings]

FIG. 1 is a perspective view of a cabinet body.

FIG. 2 is a side sectional view of a cabinet body.

FIG. 3 is a perspective view of a main part of a drawer lock mechanism.

FIG. 4 is a side view of essential parts showing the positional relationship among the vertical rod, the stopper body, and the lock body as seen from the direction of arrows IV-IV in FIG.

5 is a cross-sectional view taken along the line VV of FIG.

6 is a sectional view taken along the line VI-VI of FIG.

FIG. 7 is a plan view of a main part of the interlocking mechanism.

FIG. 8 is an enlarged plan view of a main part.

9 is a sectional view taken along the line IX-IX of FIG.

FIG. 10 is an explanatory diagram of an opened state of the opening / closing door.

FIG. 11 is a plan view of another embodiment of the selective locking mechanism.

FIG. 12 is a perspective view of another embodiment of a selective locking mechanism.

[Explanation of symbols]

1 Kavinet body 2 drawer 5 open / close door 7 Stopper body 8 vertical rods 10 Rock body 21 Pusher 40 Latch shaft 42 Latch claw 48,75 interlocking mechanism 49 Vertical bell crank lever 53 Connection rod 56 Horizontal bell crank lever 59,87 operating rod 64 stopper mechanism 65 moving body 66 spring 70 Regulator 81 Midway Bar 84 Bell crank lever 88, 96 bias spring 92 Control rod 92a inclined surface 95 Procedure Amendment Substitute for Contact Statement

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E05B 65/44-65/46 A47B 88/00 E05B 63/24 E05C 7/04

Claims (5)

(57) [Claims] 1. A multi-stage drawer is provided on the lower side of a cabinet body, and an opening / closing door is provided on the front upper part, and when at least one drawer is pulled out to the front, the other vertical drawer is moved to a lock position where it cannot move forward. In the cabinet provided with a lock mechanism configured to raise or lower, the opening and closing door is provided with a latch claw that engages and disengages with the cabinet body at the closed position, when the vertical rod moves to the locked position, The interlocking mechanism provided between the latch claw and the vertical rod is configured to bring the operating rod arranged in the cabinet body close to the latch claw to hold the opening / closing door in the closed position. Selectable locking device for opening and closing doors and drawers in a cabinet. The 2. A cabinet body, the regulating lever having an abutment portion which interlock with the rotation of the door is provided, arranged the regulating lever is associated with the middle portion of the interlocking mechanism, door When it is placed in the closed position, the operating rod is moved away from the latch claws by retracting the control rod through the abutment part, allowing the opening / closing door to open or move the drawer forward, and the opening / closing door is opened and rotated. Then, the regulating rod is configured to press and move the middle part of the interlocking mechanism to move the vertical rod in the locking direction, and the lock of the opening / closing door and the drawer in the cabinet according to claim 1 characterized in that apparatus. 3. The cabinet main body is provided with a multi-stage drawer on the lower side thereof, and an opening / closing door is provided on the front upper part thereof, while raising or lowering the vertical rod to a lock position where the drawer pushed into the cabinet body cannot be moved forward. In a cabinet in which a lock mechanism configured is provided, and a latch pawl that engages and disengages with the cabinet main body at the closed position is provided in the open / close door, a stopper mechanism for the vertical rod is provided in the cabinet main body while the open / close door is provided. Is provided with a regulation body, and when the opening / closing door is opened and rotated, the regulation body moves away from the stopper mechanism to hold the vertical rod in the lock position, and when the opening / closing door is closed, the regulation body is provided with the stopper. It is constructed so that the prohibition of the vertical movement of the vertical rod is released by abutting against the mechanism, and the selective door of the opening / closing door and the drawer in the cabinet characterized by the above-mentioned. Device. 4. When the vertical rod moves to a lock position,
With the interlocking mechanism provided between the latch claw and the vertical rod,
The actuating rod arranged in the cabinet body is configured to approach the latch claw to hold the opening / closing door in the closed position, while the stopper mechanism is arranged in association with the interlocking mechanism. The lock of the opening / closing door and the drawer in the cabinet according to 3. 5. The stopper mechanism is configured to prevent the movement of the vertical rod in a state of being projected by a spring bias, and a restriction provided on the opening / closing door when the opening / closing door is moved in the closing direction. 5. The selective lock device for an opening / closing door and a drawer in a cabinet according to claim 3 or 4, wherein the stopper mechanism is configured to be retracted by a body against an urging direction.