JPS6033264Y2 - Locking device for upper and lower cabinets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a locking device for a cabinet having two openings, upper and lower.

Conventionally, for example, in a cabinet with two upper and lower drawers, in order to lock both drawers with one lock, a vertical movement lever was placed on the side surface of the cabinet body, while an oval-shaped push lock was placed on the front of the top panel of the upper drawer. When the lock is attached and this lock is pushed in, the vertical moving lever moves up or down as appropriate, and the second vertical moving lever is locked to the lock part attached to each drawer to prevent all drawers from being pulled out. was.

When the width of the drawer in the frontage direction is wide, it is necessary to provide a pair of the devices on the left and right sides of the cabinet body, and the drawer device must be provided as a separate mechanism, making the structure complicated.

The present invention provides a bolt that moves up and down on each head plate of a two-stage drawer or rotating door, and allows each bolt to be operated up and down from the front of each head plate, as well as a link that drives this bolt. The mechanism is related to the connecting plate provided in the middle frame of the cabinet body, so that the upper and lower end panels can be locked simultaneously with a single lock, which simplifies the structure of the locking device and also serves as the structure of the latch. It has been made possible to do so.

Next, the present invention will be explained based on an example. In the figure,
1 is the fireproof cabinet body, 2 is the cabinet body 1
This is a middle frame part with an upper and lower opening divided into two parts, and an upper drawer 3 and a lower drawer 4 are disposed in the upper opening and the lower opening, respectively, so as to be movable back and forth.

Reference numeral 5 indicates a horizontal plate of the upper drawer 3Q, and 6 indicates a head plate of the lower drawer 4. The main body 1, each of the head plates 5 and 6, and the central portion 2 have a thick wall structure filled with a heat-resistant material.

7.7 is a pull hole formed in the mirror plate 5 and 6 of each drawer,
Each handle hole 7 is fitted with an edge member 8.

Furthermore, a horizontally elongated hole 9 is provided at the back of each pull hole 7 and passes through the back surface of the mirror plate, and an operating rod 10 of a latch/lock device to be described later is inserted into the horizontally elongated hole 9 in each drawer 5,6.

An upward bolt 11 and a downward bolt 11' are supported on the back surface of the head plate 5 of the upper drawer 3 so as to be movable up and down.
' indicates crank levers 13, 13' which are pivoted at 12 degrees 12' on the back surface of mirror plate 5, and both crank levers 13, 13'.
They are connected to each other so as to be vertically interlocked via a link mechanism 15 consisting of a connecting rod 14 that connects the two, and the operating rod 10 in the pull hole 7 is attached to the connecting rod 14.

The engaging portion 16 at the tip of the upward bar 11 is directed toward the recess 17 on the inner surface of the top plate portion of the cabinet body 1, and the engaging portion 16 at the tip of the downward bar 11' is directed toward the recess 17 on the top surface of the middle frame portion 2. It is configured so that it can be haunted.

1B is a downward bolt provided on the back side of the lower drawer 4 head plate 6. On the back side of the same head plate 6, a link mechanism 22 consisting of a lever 20 to which a pin pivot 19 is attached and a vertically movable rod 21 is provided, and the two ends of the lever 20 The upper part of the downward bar 18 is pivotally attached to the lever, and the operating bar 10 attached to the lever is moved from side to side through the pull hole 7, so that the engaging part 16' at the tip of the downward bar 18 fits into the recess in the base plate of the cabinet body 1. At this time, the tip of the vertically movable rod 21 in the link mechanism 22 moves in and out toward the notch 23 of the central portion 2 in the cabinet body in conjunction with the downward bar 18. It is configured like this.

Reference numeral 24 is a combination lock or a cylinder lock attached to the mirror plate 5 of the upper drawer 3. An operating rod 25 protruding from the main body 24' of the lock 24 on the back side of the mirror plate is configured to move left and right in accordance with the locking and unlocking operations of the lock. On the other hand, the middle frame part 2
A connecting plate 26 is rotatably attached to a horizontal shaft 27 in the notch 23 of the connecting plate 26. When the operating rod 25 is moved in the locking direction (direction of arrow A), the lower part of the tip of the operating rod 25 is attached to the connecting plate 26.
By pushing the upper end, the connecting plate 26 rotates against the force of the spring 28, and the lower end engaging portion 29 of the connecting plate 26 is engaged with the locking portion 30 at the tip of the vertically movable rod 21 in the lower drawer head plate 6. The upper half of the tip of the operating rod 25 is appropriately cut out to allow the lower end of the upward bar 11 of the upper drawer 3 to fit therein. A locking portion 31 is provided adjacent to this notch so that the locking portion 31 is positioned below the lower end of the upward bar 11 to prevent the upward bar 11 from moving downward when the lock is locked. .

The springs 32 and 33 bias the bar rods 11 and 18 in the upper drawer and lower drawer, respectively, so that their engaging portions 16 and 16' protrude toward the cabinet body.

In addition, 34.34 is an automatic locking device for each bolt 11, 18 in the upper and lower drawers 3, 4, which is arranged on the back surface of each end plate 5, 6 substantially parallel to the moving direction of each bolt 11', 1B. One end of the long leaf spring bodies 35, 35 is fixed to the back surface of the head plate, and the length of each leaf spring body 35 is bent so as to be elastically biased in the direction away from the back face of the head plate as it goes toward the free end. A locking part 36 for a thank-you note or the like is formed in the middle part in the horizontal direction, and an engaging piece 37 protruding in the horizontal direction from each bar rod 11'1B is formed in the direction in which the bar is separated from the cabinet body by a dimension H. When the leaf spring body 35 is moved by a distance of When the drawer is pushed into the cabinet body 1 from the hole 39 formed in the back cover plate 38 toward the inner surface of the cabinet body 1, the drawer comes into contact with the front surface of the protrusion 40 protruding from the inner surface of the cabinet body 1, and the leaf spring body The radius of curvature of the bolt 35 is increased so that the engaging piece 37 of the bar rod is disengaged from the locking portion 36 of the leaf spring body 35 (see FIGS. 4 to 6).

With this configuration, when the lock 24 is unlocked, the locking part 31 on the operating rod 25 is separated from the lower end of the upward bar 11 as shown by the two-dot chain line in FIG. Since the lower end of the bar rod 11 can be inserted freely, if you insert your finger into the pull hole 7 in the upper drawer 3 and push the operating rod 10 to the left, both the bar rods 11, 11 will be inserted through the link mechanism 15. ′ are interlocked upside down, and both bolts 11
, 11' are removed from the recesses 17, 17 in the cabinet body and the middle stile 2, allowing the upper drawer 3 to move freely back and forth.

At this time, the connecting plate 26 in the middle frame part 2 also rotates as shown by the two-dot chain line by the force of the spring 28, and the lower end engaging part 29
Since the lower drawer 4 is disengaged from the locking portion 30 at the upper end of the vertically movable rod 21, the lower drawer 4 can also be freely moved back and forth in the same way as the upper drawer 3.

Since an auto-locking device 34 is provided on the back of each drawer head plate, when each drawer is pulled out from the opening of the cabinet body 1, the engaging portion 1 of each bolt 11, 11', 1B is locked.
6.16' can be pulled and held in the direction of the end plate, and by pushing each drawer in the opposite direction, the locking portion 36 of the leaf spring body 35 in each auto-locking device 34 and the engagement piece 37 in the bolt are released. The springs 32, 11, 11', and 18 are
33 force, and the engaging portion of each bar rod fits into a recess in the inner surface of the cabinet body or the middle stile, and the locking device can perform a so-called latch function to prevent the drawer from moving back and forth.

Furthermore, if the lock 24 is locked with both drawers pushed into the cabinet body, the operating rod 25 prevents the upward bolt 11 of the upper drawer 3 from moving downward, as shown by the solid line in FIG. The connecting plate 26 of the middle stile portion 2 is pressed and rotated, and this connecting plate and the vertically movable rod 21 of the link mechanism 22 in the lower drawer are engaged, and the link mechanism 22 and, in turn, the bolt 18 in the lower drawer is pulled. This means that both upper and lower drawers can be locked at the same time by locking one lock.

The operating lever of the lock may disable the downward bar of the upper drawer from moving upward, and at the same time, it may be configured to be locked to the upper end of the link mechanism of the lower drawer via a connecting plate of the middle stile. , contrary to the above-mentioned embodiments, a lock is provided on the end plate of the lower drawer, and its operating lever prevents the retracting movement of the bolt 18 of the lower drawer, and at the same time locks the lock in the upper drawer 3 via the connecting plate 26 of the middle frame part 2. The movement of the bar link mechanism 15 may be prevented.

Also, cut out the middle frame part so that there is a space between the front surface of the central part and the back surface of the area adjacent to both the upper and lower mirror plates, pivot the connecting plate to the front part of the central part so that it fits in the space, and attach the connecting plate to the upper or lower part. It is also possible to configure one end of the link mechanism to face toward the connecting plate.

As described above, in the present invention, the openings of the cabinet body are arranged in two stages, upper and lower, by the middle frame part, and the two upper and lower openings are
The upper and lower parts 2 are configured so that the mirror plate of the back-and-forth movable drawer or one side of the drawer is covered by a rotating door-type mirror plate pivoted to the cabinet body.
In the tiered cabinet, each of the end plates is provided with a bar rod on the back surface thereof that engages with the cabinet main body in a freely engaging and removable manner, and a link mechanism is provided in which the bar rod of each of the end plates is arranged on the back surface of the end plate. A connecting plate is rotatably provided on the inner side of the cabinet body in the middle frame portion, and a lock is provided on one of the two end plates. At the same time, an operating rod is provided on the back surface of the lock that operates to rotate the connecting plate when the lock is locked, and the link mechanism in the end plate with the lock is provided with a bar lever in the link mechanism relative to the operating rod in the locked position. The link mechanism on the other of the two end plates is provided with a locking portion that irretractably engages the bar rod of the link mechanism with respect to the operating rod in the locked position. By locking with a lock provided on one end panel, one end panel can be locked so that it cannot be opened or closed by its bolts, and at the same time, the other end panel can be locked through the interlocking plate in the middle stile. Since the rod can be locked so that it cannot be opened or closed, there is no need to provide a lock on each of the head plates, and when the lock on one head plate is unlocked, the bolts, link mechanisms, and operation parts on both head plates are Since the latch mechanism operates independently on each of the end plates, the number of parts can be reduced and the structure can be simplified.Moreover, the bolts, link mechanisms, and operation parts of each end plate can be provided separately. As a result, the assembly work is easy, and together with the small number of parts,
This has the effect of reducing production costs.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view of the cabinet, Fig. 2 is an enlarged sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a side view taken along the line ■-■ in Fig. 2. Figure 4 is IV-I of Figure 3.
5 is an explanatory view showing the state in which the end plate is pulled out from the cabinet body, and FIG.
It is a sectional view taken along the Vl line. 1... Cabinet body, 3... = upper drawer, 4... lower drawer, 5, 6... mirror plate, 11.11'. 18...Bar rod, 10...Operating rod, 15
, 22... Link mechanism, 21... Vertical moving rod, 26... Connecting plate, 25... Operating rod, 24... Lock ,28,32.33...
...Spring, 34...Auto lock device, 35.
...Plate spring body, 37...Engagement piece, 36.
...Locking part.

Claims (1)

[Scope of utility model registration request] The opening of the cabinet body is divided into two levels, upper and lower, by the middle stile, and the two upper and lower openings are formed into mirror plates of a front-rear movable drawer or a rotating door-type mirror plate with one side pivoted to the cabinet body. In the upper and lower two-tier cabinet configured to be closed by a door, each of the end plates is provided with a bolt on the back surface thereof that removably engages with the cabinet assembly, and a bar bolt on each of the end panels is provided on the surface thereof. A connecting plate is rotatably provided on the side surface of the cabinet main body at the middle stile, and both the mirror plates are connected to each other. One of the end plates is provided with a lock, and an operating rod is provided on the back surface of the end plate that operates to rotate the connecting plate when the lock is locked. Provided with a locking portion that engages the bar rod in the link mechanism in a manner that cannot be retracted with respect to the operating rod in the link mechanism,
The link mechanism of the other of the two end plates is provided with a locking portion that engages the bar rod of the link mechanism with the operating rod in the locked position so as not to be retractable. Locking device for tiered cabinets.