JP3341538B2 - Drawer locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer lock device, and more particularly, to a lock device capable of simultaneously locking and unlocking a plurality of drawers provided above and below in a main body.

[0002]

2. Description of the Related Art A conventional drawer lock device is disclosed, for example, in Japanese Utility Model Laid-Open No. 5-47267. This means that an operating member is provided in a side stile formed by a side plate and a side reinforcing plate of the main body so as to be vertically movable, and a plurality of drawers provided in the upper and lower parts of the main body are respectively provided with a locking portion provided in the operating member. A stopper is provided to lock the drawer so that the entire drawer cannot be pulled out, an elastic member is provided to move the operating member to the unlocked position, and the lock operation member is moved horizontally with the locking and unlocking of the lock. The pivoting member is provided so as to be slidable and has a contacted portion that contacts the contacting portion of the operating member in the opening of the side reinforcing plate corresponding to the lock operation member. Freely attached. Therefore, the lock operation member is slid into the opening of the side reinforcing plate in accordance with the locking operation of the lock, so that the tip of the lock operation member rotates the rotation member and at the same time the rotation member changes the operation member to the elastic member. The contact portion is operated downward against the urging force, and the locking portion of the operating member locks with the stopper of each drawer, thereby making it impossible to pull out all the drawers.

[0003] However, in the above-mentioned structure, a rotating member must be specially provided between the lock operating member and the operating member. Since the operation force of the member is transmitted to the operation member via the rotation member, the assembling position of the three members of the lock operation member, the rotation member, and the operation member in order to ensure the transmission. Therefore, the assembling work also requires much time from this point.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a drawer lock device which can simplify the assembling work and can reliably perform the drawer lock operation. It is in.

[0005]

According to the present invention, in order to solve the above-mentioned problems, an operating member is provided in a main body so as to be vertically movable,
A stopper is provided for each of a plurality of drawers provided at the top and bottom in the main body to lock a locking portion provided on the operating member to prevent the entire drawer from being pulled out, and the operating member is moved to an unlocked position. A drawer lock device provided with a biasing elastic member, wherein the operating member is brought into contact with a front plate of a specific drawer from a vertical direction to a locking action position against a biasing force of the elastic member. lock operation is provided member and lock the rotating operation type for operating the lock operation member between the locked and unlocked positions, said lock one end of the front <br/> Symbol lock operation member in the unlocking position the rotation of which The other end side of the lock operating member is closer to the operating member than the rotating shaft center of the lock is mounted on a pivot portion on a side more distant from the operating member than the rotating shaft center. The lock operation member is attached to the lock The approach movement to the kinematic member side can be allowed to support,
In front of the lock operation member in conjunction with the rotation operation of the lock
Serial until pivot portion is positioned right below the rotational axis of the front tablet has a first posture changing state actuating member side end of the lock operation member is moved closer to the actuating member side while rising, the lock operation After the pivot portion of the member is located immediately below the rotation axis of the lock, the end of the lock operation member closer to the operation member moves downward while the end of the lock operation member is lowered in conjunction with the rotation operation of the lock. The posture can be changed to the second posture change state, and the operation member side end of the lock operation member in the second posture change state contacts the operation member to fully pull out.
A drawer lock device is configured so that the drawer cannot be pulled out.

According to a second aspect of the present invention, an operating member is provided in the main body.
Plural drawers provided up and down inside the main body so as to be movable up and down
Each of the locking members provided on the operating member is locked to
With a stopper to make the drawer impossible to pull out
An elastic portion for urging the operating member to move to the unlocked position.
A lock device for a drawer provided with a
On the front plate of dispensing, the operating member is biased by the elastic member.
Lock that operates against the locking position from above and below
Locking the operating member and the lock operating member with the locking position
A rotary lock that operates to the release position is provided and locked.
At the release position, one end of the lock operation member is
Side of the rotating portion that is further away from the operating member than the rotation axis of the rotating portion
To the other end of the lock operation member.
Of the lock closer to the operating member than the pivot axis of the lock.
Move the lock operation member closer to the operating member side to the fixed part.
Capable to be supported, to said pivot portion of the lock operation member in conjunction with the rotation operation of the lock is located directly above the rotational axis of the front tablet, the actuating member side end portion of the lock operation member descends After the third posture change state in which the lock operation member moves closer to the operation member side and the pivot portion of the lock operation member is located immediately above the rotation axis of the lock, the lock is interlocked with the rotation operation of the lock. The posture can be changed to a fourth posture change state in which the operation member-side end of the operation member moves closer to the operation member side while ascending, and in the fourth posture change state,
The operating member side end of the lock operating member contacts the operating member.
It can also be configured such that all drawers cannot be pulled out by operation .

[0007]

According to the drawer lock device of the present invention having the above-mentioned contents, in the unlocked position, one end of the lock operating member is pivoted to the side farther from the operating member than the rotation axis of the rotating portion of the lock . By attaching the lock operation member, the rotation radius of the lock operation member can be made larger than the rotation radius of the lock, so that the rotation operation angle of the lock operation member can be smaller than the rotation operation angle of the lock. And
Since the other end of the lock operating member is supported by the fixed portion of the lock so that only the approach movement of the lock operating member to the operating member side is possible, the rotational operation force of the lock is controlled by the rotational movement of the lock operating member and the lock operating member. And approach movement toward the operating member side. For this reason, the lock operation member approaches and moves toward the operation member while the pivot portion of the lock operation member changes its position around the rotation axis of the lock in conjunction with the rotation operation of the lock. In other words, the rotating part of the lock rotates counterclockwise,
Until the pivot portion of the lock operating member is located immediately below the pivot axis of the lock, the lock operating member assumes a tilting position in which it is located closer to the operating member side end, and approaches the operating member at the same time. It moves (first posture change state) . After the pivot portion of the lock operation member is located immediately below the rotation axis of the lock, the lock operation member is further rotated to operate the lock operation member while the operating member side end of the lock operation member is lowered. Move closer to the actuating member (second posture change
Condition) At this time, the operating member side end of the lock operating member contacts the operating member from above and moves the operating member to the locking action position against the elastic urging force of the elastic member, so that all drawers cannot be pulled out. You do it.

According to the second aspect of the present invention, the lock rotating member rotates in the opposite direction, that is, clockwise, until the pivot portion of the lock operating member is positioned directly above the rotation axis of the lock. In other words, the lock operation member is inclined toward the lower end of the operation member, and moves closer to the operation member at the same time (third posture change state) . After the pivot portion of the lock operation member is located immediately above the rotation axis of the lock, the lock operation member is further rotated to operate the lock operation member while the operating member side end of the lock operation member is raised. It moves closer to the operation member side (fourth posture change state) .
At this time, the operating member side end of the lock operating member comes into contact with the operating member from below, and the operating member is moved to the locking action position against the elastic urging force of the elastic member, and the full pullout is performed as described above. Make it impossible to withdraw.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; 1 and 4 show a lock device of the present invention incorporated in a sleeve body or cabinet of a desk. In FIG. 4, reference numeral 1 denotes three drawers provided at the top and bottom of the body.
Indicates a lock device. The number of drawers 1 may be one, two, or even four or more.

The main body has three drawers 1 internally provided by appropriate guide means such as rails or suspension rails.
Are provided vertically so that they can be pulled out, and side stiles 3 are provided at the front side portions. The side stile 3
As shown in FIG. 5, the side plate 4 and the side reinforcing plate 5 are provided inside with two hollow spaces 6 and 6 extending in the vertical direction and having a substantially rectangular cross section.

As shown in FIG. 4, each drawer 1 has a front plate 1A on the front surface and side plates 1B and 1B on the left and right side surfaces. And the drawer 1 located on the first and second tier from the top
The drawer guide rail 7 protruding from the side plate 1B is formed with a notch 7A as a stopper for locking a locking portion 17 to be described later to make the drawer 1. 2 is attached to the side plate 1B of the drawer 1 located at the lowermost stage.
As shown in (1), a contact member (not shown) as a stopper that acts on a later-described locking portion 17 is attached.

The latch device 8 and the lock device are provided in a space formed by the front plate 1A of the drawer 1 located at the first stage from the top and a back cover (not shown) covering the back surface of the front plate 1A. 2 are provided.

[0013] As shown in FIG.
A swingable operation member 10 protruding into a puller 9 attached to the front plate 1A of the drawer 1;
A pair of brackets 1 integrally formed so as to be rotatable integrally therewith, and protruding from an upper portion of the back surface of the puller 9.
An operating rod 12 is rotatably supported by the operating levers 1 and 11, and a latch lever 13 is pivotally operated in conjunction with the operating rod 12.

As shown in FIG. 9, an upper locking groove 9a and a lower locking groove 9b, which are locking portions for locking the opening edge of the opening formed in the front plate 1A, are formed in the puller 9 as shown in FIG. By pushing the puller 9 into the opening formed in the front plate 1A of the drawer 1, the upper locking groove 9a and the lower locking groove 9b are formed.
Are locked to the opening edge of the front plate 1A, that is, the upper wall portion and the lower wall portion, respectively, so that the pull 9 can be easily fixed to the front plate 1A.

As shown in FIGS. 1, 2 and 4, the lock device 2 is provided with a drawer 1 located at the first stage from the top.
Vertically moves into a vertically extending space 15 formed by the lock 14 attached to the front plate 1A and the side reinforcing plate 5 located between the hollow spaces 6 before and after the side stile 3. A plate-shaped actuating member 16 arranged as possible is configured as a main member.

A notch 7A formed on the guide rail 7 of the drawer 1 and a locking member 17 which is locked to a contact member attached to the side plate 1B of the drawer 1 to make all the drawers 1. And a coil spring 18 serving as an elastic member for urging the operating member 16 to move to the unlocked position is attached to a plate portion 16A formed on the lower end edge of the operating member 16. Let it fit and hold
The free end of the coil spring 18 is brought into contact with a receiving piece 5A formed by cutting and raising the lower part of the side reinforcing plate 5. The operating member 16 is formed in a U-shaped cross section,
The contact operating portion 19 at the upper end is vertically movably inserted into the elongated hole 5B formed above the side reinforcing plate 5, and the plate portion 16A at the lower end is inserted into the receiving piece 5A of the side reinforcing plate 5. The operating member 16 is vertically movably inserted into the formed hole 5C, and is supported by the side reinforcing plate 5 so as to be vertically movable. And
A lock operating member 20 for operating the operating member 16 against the urging force of the coil spring 18 at the locking action position from above is interlocked with the lock 14, and is shown in FIGS.
As shown in FIG. 3, after the lock operation member 20 enters the hollow space 6 through the opening 5D formed in the side reinforcing plate 5, the contact operation portion 19 of the operation member 16 located in the hollow space 6 is viewed from above. The actuating member 16 can be moved to the locking action position against the urging force of the coil spring 18.

As shown in FIG. 6 and FIG.
Box-shaped mounting member 21 for mounting the lock 14
And a locking mechanism for locking and fixing them to the lock 14 and the mounting member 21 is provided. The locking mechanism includes upper and lower plate portions 21A, 21A of the mounting member 21.
A is provided with protrusions 21B, 21B protruding from A, and the lock 14 is provided with upper and lower engagement holes 14a, 14a for engaging with the protrusions. Therefore, by inserting the cylinder 14A of the lock 14 through the front opening 21C of the mounting member 21, the protrusions 21B, 21B and the engagement holes 14a,
The lock 14 can be easily fixed to the mounting member 21 by engaging with the lock member 14a.

As shown in FIGS. 1 to 4, the lock operating member 20 is formed of a plate-like body whose longitudinal direction is parallel to the front plate 1A.
A hole 20A for pivotal support is formed, and a long hole 20B along the longitudinal direction of the lock operation member 20 is formed on the other end side, and a fixing pin 22A that can be inserted into the long hole 20B is provided with the fixing pin 22A. The lock 14 is provided on a fixing portion. Therefore,
The movement of the lock operation member 20 in the vertical direction is prevented by the action of the fixing pin 22A and the elongated hole 20B, and the lock operation member 20 can move closer to the operation member 16 side. The fixing pin 22A protrudes from a back cover 22 fixed to the back surface of the lock 14. Further, the lock operation member 20 is provided with a pin 2 protruding from a back surface of a cylinder 14A as a rotating portion of the lock 14 through a hole 20A thereof.
4 is rotatably mounted.

The pivoting position of the lock operation member 20 overlaps the rotation axis 14X of the lock 14 in the horizontal direction, and is further away from the operating member 16 than the rotation axis 14X of the lock 14 is. And the fixing pin 22A of the back cover 22 is
X and the pin 24 of the lock operation member 20 are arranged so as to overlap in the horizontal direction. Therefore, FIG.
In the initial position (unlocked position) shown in FIG. 6, the key is inserted into the keyhole of the lock 14 and rotated 90 degrees counterclockwise, whereby the pivot of the lock operating member 20, that is, the pin 24, The lock operation member 2 moves to a position immediately below the rotation axis 14X of the lock 14 around the lock operation member 14X, and during this movement, the lock operation member 2 is inserted through the elongated hole 20B.
0 moves toward the longitudinal operating member 16. That is, the end of the lock operation member 20 on the side of the operation member 16 is
The posture of the lock operation member 20 is changed to a right-up tilt posture that rises while approaching the side, that is, the posture of FIG. 3B (first posture change state) . The pivot position of the lock operation member 20, that is, the pin 24 is the rotation axis 14X of the lock 14.
The lock operation member 2 is further rotated counterclockwise by 90 degrees from the position immediately below the lock operation member 2 to thereby lock the lock operation member 2.
0, the pin 24 and the pivot 1 of the lock 14
The pin 24 moves to a position where the pin 24 and the 4X overlap in the horizontal direction, and during this movement, the lock operation member 20 further moves closer to the longitudinal operation member 16 via the elongated hole 20B. That is, the operating member 1 of the lock operating member 20
The 6-side end descends while approaching the actuating member 16 and changes the posture from the upwardly inclined posture to the horizontal posture to position the lock operation member 20 at the lock operation position (second posture).
Change state) . At the same time, the contact operating portion 20C of the lock operating member 20 contacts the contact operating portion 19 of the operating member 16 from above, and resists the urging force of the coil spring 18 as shown in FIG. Then, the operating member 16 is moved downward and locked. When unlocking, the lock operation member 20 is positioned at the unlock position by inserting the key into the keyhole of the lock 14 and rotating it 180 degrees clockwise.

The operating member 17 includes the lock operating member 2
0 may be contacted from below. In this case, in order to lock the lock 14, the key is inserted into the keyhole of the lock 14, and the key 14 is rotated 180 degrees in the opposite direction, that is, clockwise. To unlock the lock 14, the lock 14 is unlocked. Insert the key into the keyhole and rotate 180 degrees counterclockwise. More specifically, as described above, the key is inserted into the keyhole of the lock 14 at the initial position (unlocked position) shown in FIG. The pivot portion, that is, the pin 24 is moved around the rotation axis 14 </ b> X of the lock 14.
4 while the lock operation member 20 moves toward the longitudinal operation member 16 via the elongated hole 20B during this movement. In other words, the posture of the lock operation member 20 is changed to a right-down inclined posture in which the end of the lock operation member 20 on the side of the operation member 16 approaches and closes to the operation member 16 (third appearance).
Change state) . When the lock 14 is further rotated clockwise by 90 degrees from the pivotal position of the lock operation member 20, that is, the state in which the pin 24 is located immediately above the rotation axis 14X of the lock 14, the pivot of the lock operation member 20 is rotated. The pin 24 moves to a position where the support, that is, the pin 24 and the rotation axis 14X of the lock 14 overlap in the horizontal direction, and during this movement, the lock operation member 2 is inserted through the elongated hole 20B.
0 moves further toward the longitudinal operating member 16. That is, the end of the lock operating member 20 on the side of the operating member 16 rises while approaching the side of the operating member 16 to change the posture from the downwardly inclined position to the horizontal posture, and position the lock operating member 20 at the lock operation position. (4th posture change state) . At the same time, the contact operating portion 20C of the lock operating member 20 contacts the contact operating portion 19 of the operating member 16 from below, and the operating member 16 is moved upward against the urging force of the coil spring 18. And lock it. When unlocking,
By inserting the key into the keyhole of the lock 14 and rotating it 180 degrees counterclockwise, the lock operating member 20 is positioned at the unlocked position. In this case, the locking portion 17 of the operating member 16 is configured to lock the stopper 7A of the drawer 1 from below.
Further, the rotation operation angle of the lock 14 is not limited to 180 degrees, and may be configured to be an angle exceeding 180 degrees or less than 180 degrees, and the rotation operation angle of the lock 14 may be any angle. May be set.

[0021]

As described above, the drawer lock device of the present invention has a structure in which the operating member is directly contacted by the lock operating member, so that it is interposed between the conventional operating member and the lock operating member. The rotating member to be used can be eliminated, and the locking operation can be reliably performed without increasing the assembling accuracy, and the assembling work can be simplified. Further, the space for allowing the movement of the lock operation member to allow the lock operation member to come into contact with the operating member from above and below is a space that allows the inclination posture of the lock operation member to be changed. Could be achieved. Further, in the case where an operating member is provided in a side stile formed by a side plate and a side reinforcing plate of a main body, for example, a lock operation member is rotated about the same axis as a rotation axis of a lock to make contact with the operating member. In this configuration, the lock operation member must be small in size because a space for the lock operation member to rotate around the same axis as the lock is secured in the main body. Therefore, not only is there a restriction on the arrangement in which the lock operation member must be arranged close to the operation member side, but also a cut-off that allows the lock operation member to move into the side reinforcing plate in order to abut the operation member. In contrast to the need to form a large notch, the present invention locks the drawer without impairing the original reinforcing function of the side reinforcing plate by minimizing the notch in the side reinforcing plate. You can do it.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a drawer lock device.

FIG. 2 is a front view of the lock device of the drawer partially omitted.

FIG. 3 is a front view showing an operation state of a lock operation member.

FIG. 4 is a schematic side view of a drawer locking device.

FIG. 5 is a cross-sectional plan view showing a mounting portion of the lock operation member.

FIG. 6 is a plan view showing a lock mounting structure.

FIG. 7 is a rear view showing the puller and the mounting portion of the lock.

FIG. 8 is a rear view of the latch device mounted on the front plate.

FIG. 9 is a longitudinal sectional side view showing a mounting portion of the puller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drawer 1A Front plate 1B Side plate 2 Locking device 3 Side sill 4 Side plate 5 Side reinforcing plate 5A Receiving piece 5B Slot 5C Hole 5D Opening 6 Hollow space 7 Guide rail for drawing 7A Notch 8 Latch device 9 Puller 9a Lock groove 9b Locking groove 10 Operating member 11 Bracket 12 Operating rod 13 Latch lever 14 Lock 14A Cylinder 14a Engagement hole 14X Rotating shaft center 15 Space 16 Operating member 16A Plate 17 Locking part 18 Coil spring 19 Contact operating part 20 Lock Operation member 20A Hole 20B Slot 20C Contact operation part 21 Mounting member 21A Plate 21B Convex 21C Front opening 22 Back cover 22A Fixing pin 24 Pin

Claims (4)

(57) [Claims] An operating member is provided in the main body so as to be movable up and down, and a plurality of drawers provided up and down in a main body are locked with locking portions provided on the operating member to draw out the entire drawer. A drawer lock device provided with a stopper for disabling, and an elastic member for urging the operating member to move to the unlocked position, wherein the front plate of the specific drawer includes:
A lock operating member for operating the operating member against the urging force of the elastic member at a locking position from above and below, and a rotary lock for operating the lock operating member between a locked position and an unlocked position. In the unlock position
Said locking <br/> with preparative at pivot portion on the side away from the actuating member of the rotation axis of the rotating part of the lock one end of member, the lock the other end of the lock operation member Te capable to support the approach movement of the actuating member side of the lock operation member to the fixing portion before the tablet was closer to the actuating member of the rotation axis of the lock operation member in conjunction with the rotation operation of the lock the up the pivot portion is positioned right below the rotational axis of the front tablet, a first attitude changing state actuating member side end of the lock operation member is moved closer to the actuating member side while rising, the lock After the pivot portion of the operating member is located directly below the rotation axis of the lock, the operating member side end of the lock operating member descends and moves toward the operating member in conjunction with the rotation operation of the lock. The posture can be changed to the second posture change state All arguments actuating member side end portion of the second attitude changing state of the lock operating member in abutment operating the actuating member
A drawer locking device configured to render the drawer undrawable. 2. The lock operating member according to claim 1 , wherein
The horizontal axis overlaps with the previous rotation axis, and the lock
Initially located on the side more distant from the operating member than the moving shaft center
In the initial position, rotate the lock 90 degrees counterclockwise.
By operating the lock operation member on the side of the operation member
The end is raised so as to approach the actuating member.
And the lock is turned 90 degrees counterclockwise.
After that, further rotate the lock 90 degrees counterclockwise.
As a result, the end of the lock operating member on the side of the operating member
The drawer lock device according to claim 1, wherein the drawer lock device is configured to descend while approaching the moving member side . 3. A locking device according to claim 1, wherein said lock operation member is a plate elongated in a horizontal direction.
Consisted Jo body, its longitudinal direction before Symbol lock operation member
A long hole is formed in the hole, and a solid that can be inserted into the long hole is formed.
The drawer lock device according to claim 1 , wherein a fixed pin is provided on a fixing portion of the lock. 4. An operation member is provided in the main body so as to be vertically movable.
Each of the upper and lower drawers in the body
Lock the locking part provided on the moving member and pull out all the drawers
And a stopper that disables
An elastic member is provided for urging the material to move to the unlocked position.
A drawer locking device, wherein a specific drawer front plate is
Locking action of the operating member against the urging force of the elastic member
A lock operation member and a lock
The lock operation member between the lock position and the unlock position.
A lock that can be operated in the unlock position.
The one end of the lock operation member to rotate the rotation part of the lock.
Take a pivotal support on the side farther from the actuating member than the shaft center.
Attach the other end of the lock operation member to the pivot shaft of the lock.
The locking portion of the lock closer to the operating member than the core is
Is supported so that the operating member can move closer to the operating member.
The lock operation member in conjunction with the rotation operation of the lock.
Of the lock is located directly above the rotation axis of the lock.
Then, while the end of the lock operating member on the operating member side is lowered,
A third posture change state in which the actuator moves closer to the operation member side from the
The pivot portion of the lock operation member is located directly above the rotation axis of the lock.
After being positioned, the lock is linked to the rotation of the lock.
The operating member side end of the operating member
The posture can be changed to the fourth posture change state that moves closer to
And a lock operation unit in the fourth posture change state.
The end of the material on the side of the operating member contacts the operating member and pulls
A drawer locking device configured to render the drawer undrawable.