JPH038754Y2 - - Google Patents

Description

[Detailed description of the invention] This invention provides a locking handle for a double-door safe/fireproof box on one side, and locks the other door by transmitting the operation of the handle on one door. This invention relates to a locking device that enables the opening and closing of a door.

Conventionally, in safes and fireproof cabinets with double doors, handles were attached to both the right and left doors, and the vertical power of the handles was used to move the transmission device installed inside the door. It was common to have a structure in which a cannula was hung on and removed from the top. Therefore, when opening a door, first move the handle attached to the right door to unlatch the right door, then move the handle on the left door to unlatch the left door. For this reason, safes and fireproof boxes with this structure not only required both handles on both doors, but also required both handles to be operated when opening and closing.

In view of these conventional problems, the present invention aims to provide a locking device that makes it possible to open and close both doors by operating a handle provided on one door. The gist is to utilize the movement of the locking rod provided on one locking device for the other door, that is, the movement of the cannula to move in and out of the other door, and to operate the locking operation means of the other door with the tip of this cannula. A handle provided on one door is used to operate the locking operation means of the door, and the locking operation means of the other door is also operated.

That is, the outline of these inventions is illustrated in FIGS. 1 to 3.

FIGS. 1 and 2 are conceptual diagrams showing one embodiment of the present invention, and each shows both doors viewed from the inside of a safe or fireproof box. First, the basic configuration of the locking device will be explained based on Fig. 1.
An upper vertical operating lever 3 and a lower vertical operating lever 4 are disposed vertically inside the door 2 so that they can move vertically in parallel and vertically, and each vertical operating lever 6 is pivotally supported in the middle by the doors 1 and 2. It is made by pivoting the base ends of rods 3 and 4, and the operating rod end has a locking rod 7 like a general safe.
In other words, a cannula is provided. In the following explanation, it is assumed that this bar part is always provided at the tip of the vertical operating rods 3 and 4. Further, a handle (not shown) is provided on the surface of one door in association with a locking operation means A consisting of one vertical operating rod 3, 4 and an operating rod 6. In FIG. 1, a handle is provided on the surface of the right door 1 on the left side of the figure.

Therefore, in a door having such a locking operation means A, the horizontal operation lever 8 is moved in the horizontal direction on one door, for example, the right door 1 shown on the left side in the figure, in conjunction with the protrusion and retraction of the vertical operation levers 3 and 4. The other door 2 has a hole 10 for receiving the tip of the horizontal operation rod 8, and the other door 2 has a hole 10 for receiving the tip of the horizontal operation rod 8.
A horizontal operating rod 11 whose tip is positioned facing this hole 10 is arranged so as to be movable laterally in conjunction with the vertical operating rods 3 and 4 so that it appears and retracts in the opposite direction. The base end of the drive unit is connected by the operation means A and the drive transmission means B. Here, it is preferable that the tip of one of the horizontal operating rods 8 is configured with a lock so that it can be locked, and the tip of the other horizontal operating rod 11 may simply be exposed in the hole 10, but the tip A preferred embodiment is one in which a receiving member 12 is provided as shown in the figure. The drive transmission means B shown in FIGS. 1 and 2 is a lateral movement lever in which the base ends of the lateral operation levers 8 and 11 are fixed at a fixed angle to each other by a shaft fulcrum 13 provided on the door. 14 and a vertically movable rod 15 are shown pivotally connected to the vertical operating rods 3, 4, for example the upper vertical operating rod 3. In addition, what is shown as 16 and 17 in the figure is a tension spring. That is, the tension spring 16 elastically biases the levers 7, 7 at the tips of the vertical operating rods 3, 4 of the right door 1 in the protruding direction, and the tension spring 17 elastically biases the vertical operating levers 3, 7 of the left door 2. , Kannuki 7 at the tip of 4,
7 is elastically biased in the retracting direction. Since the embodiment shown in Figures 1 and 2 has the above configuration, when the handle provided on the surface of the right door 1 on the left side of the figure is rotated in the unlocked state of Figure 1, the rotational force of the handle is increased. Due to the tensile force of the tension spring 16, the vertical operating rods 3 and 4 move up and down while holding the operating rod 6, so that the cannula 7 at the tip is hung in the cannula hole of the main body frame in the usual manner, and at this time, one end is attached to the vertical operating rod. 3
The upward driving operation is converted and transmitted as a lateral movement of the lateral operating rod 8 by the drive transmission means B whose other end is pivotally connected to the base end of the lateral operating rod 8, and the cannulated portion at the tip is shown on the right side in the figure. is inserted into the hole 10 opened in the joint 9 direction of the left door 2, and the tip of the lateral operating rod 11 of the left door 2 is moved laterally into the door 2, and the drive transmission means B is used to move this lateral The movement is the vertical operation levers 3 and 4 of the left door 2.
The vertical operation rods 3, 4 are transmitted to the levers 7, 7 at the tips of the vertical operating rods 3, 4 against the tensile force of the tension springs 17.
7 is hung on the cannula hole of the main body frame. FIG. 2 shows this state. To return the state from FIG. 2 to the state shown in FIG. 1, by moving the handle in the reverse direction, the horizontal operating lever 8 of the right door 1 is pulled out from the left door 2, and at the same time, the upper vertical operating lever 3 of the left door 2 is pulled out. When pulled downward by the tension spring 17, the lower vertical operating rod 4 is also pulled upward at the same time, and the horizontal operating rod 11 returns to its original position. By providing a tension spring on the right door, each locking operation means on the right door is always elastically biased in the locking direction to ensure complete locking. This makes the locking operation easier by canceling out the tensile force of the tension spring 17 provided to elastically bias the operating rod 3 and the downward vertical operating rod 4 in the retracting direction.

The embodiment shown in FIG. 3 differs from the embodiment shown in FIG. 1 in the specific manner of the drive transmission means B. That is, the drive transmission means B of this embodiment has an operating lever 6 that connects the base ends of the upper vertical operating lever 3 and the lower vertical operating lever 4 with each other, and has an operating piece 18 protruding from the pivot point 5. The two lateral operating rods 8, 11 are pivotally connected to the tip. In addition, the horizontal operation rod 11 provided on the left door 2 on the right side of the figure is guided laterally by a guide slot 20 that receives a pin 19 protruding from the door body, and the tip of this horizontal operation rod is used as a receiving member 12 at the tip. It is made by folding it into the shape of a letter. Therefore, in order to operate this locking device, as in the first embodiment, the handle of the right door 1 is operated and the horizontal operating rod 8 is inserted into the hole 10 opened in the seam 9 of the left door 2. If so, the receiving member 12 at the tip of the horizontal operating rod 11 of the left door 2 is moved laterally, and each of the vertical operating rods 3 and 4 is driven in the vertical direction via the drive transmission means B, so that the cantilever 7 at the tip is inserted into the cantilever hole of the main body pane. Can be hung on. When opening, this operation is reversed as in the first embodiment.

As described above, the locking device for a double-door safe/fireproof box according to the present invention allows the locking operation of the locking operation means provided on one door to be moved in and out of the horizontal operating rod, which is also a locking rod provided toward the other door. Since the locking operation means of the other door is actuated by the lateral operation lever that responds laterally within the other door facing this,
Even if you have a double-door safe/fireproof safe, you only need to install a handle on one side, and the opening/closing operation can be done by operating only one handle. It is also possible to omit attaching handles and decorative plates to the door surface, which not only simplifies the design, but also contributes to lower product costs.

In addition, the upper vertical operating rod and the lower vertical operating rod of one door equipped with a handle are elastically biased in the protruding direction by a pull spring, and the upper vertical operating rod and the lower vertical operating rod of the other door are is elastically biased in the retracting direction by a pull spring, so when one door is unlocked by operating the handle, the other door is automatically unlocked by the pull spring. This allows the operation to be simplified. In addition, when operating the handle to lock one door, the rotational driving force from the handle and the tension force of the tension spring are applied to the upper vertical operating lever and the lower vertical operating lever of the other door via both horizontal operating levers. Since the tension is transmitted to the vertical operating lever, the elastic force of the tension spring that keeps the other door unlocked can be canceled out by the tension force of the tension spring of one door, making it easier to operate the handle to lock the door. From the opposite point of view, it is possible to make the handle operation easier even when setting the lock to the unlocked state.This invention skillfully utilizes the action of two tension springs to create a double-door safe/fireproof safe. This makes it easy to lock, open and close the door.

[Brief explanation of the drawing]

Figures 1 and 2 are conceptual diagrams showing the first embodiment of the present invention, and are layout diagrams as seen from the inner surface of each door, and Figure 3 is a view from the inside explaining another embodiment of the present invention. FIG. 1...Right door, 2...Left door, 3...Upper vertical operation lever, 4...Downward vertical operation lever, 5...Spindle support, 6...
Operating rod, 7... Locking rod (cannuki), 8... Lateral operating rod, 9... Joint, 10... Hole, 11... Lateral operating rod, 12... Receiving member, 13... Axial fulcrum, 1
4... Lateral moving rod, 15... Vertical moving rod, 16... Extension spring, 17... Extension spring, 18... Operation piece, 19
...Pin, 20...Long groove, A...Lock operation means,
B... Drive transmission means.

Claims (1)

[Scope of utility model registration request] An upper vertical operating rod 3 and a lower vertical operating rod 4 are disposed so as to be movable vertically and parallel to each other inside the doors 1 and 2 of a double-door safe/fireproof safe, and an operating rod 6 is pivotally supported in the middle by the door. In a locking device for a double-door safe/fireproof box in which the base ends of each vertical operating rod 3, 4 are pivotally connected, a spring 16 pulls the vertical operating rod 3, 4 to one door 1 provided with a locking handle. It is elastically biased in the protruding direction and is connected to the vertical operating rod 3 by the drive transmission means B, so that it moves horizontally toward the joint 9 of the door in conjunction with the protrusion and retraction of the vertical operating rod 3. A horizontal operating rod 8 is disposed so that its tip can protrude and retract and move laterally, and the vertical operating levers 3 and 4 are disposed on the other door 2 and are elastically biased in the retracting direction by a pull spring 17. Said horizontal operation rod 8
There is a hole 10 for receiving the tip of the horizontal operating rod 11, and the horizontal operating rod 11, the tip of which is located facing the hole 10, is arranged so as to be movable laterally, and in contrast to the protrusion and retraction of the horizontal operating rod 11, the vertical operating rod Drive transmission means B to appear and disappear 3 and 4
A locking device for a double-door safe/fireproof box, which is characterized by being connected to each other.