JPH05248143A - Door for safe chamber - Google Patents

Abstract

PURPOSE:To make it possible to open a double-sliding door both right and left at the same time. CONSTITUTION:This device is provided with a fitting frame 10, doors 20, 30 attached to the fitting frame 10 to be freely opened and closed, and a drive mechanism 50 to drive the doors 20, 30. The drive mechanism 50 is provided with a drive motor 51, driving chains 52, 53, connection brackets 52c, 53c, and a stopper mechanisms 54, 54. The doors 20, 30 are driven by the driving chains 52, 53 through the connection brackets 52c, 53c. In this time, when different sprockets 52a, 52b and 53a, 53b are adopted in the tooth number, different opening and closing strokes can be realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vault door device capable of simultaneously opening and closing a pair of left and right laterally opening doors.

[0002]

2. Description of the Related Art A vault installed in a store of a financial institution,
It is necessary to have high anti-theft performance. Therefore, such a vault door device must not only be strong in itself, but must be safely locked by a strict locking device.

In order to meet such demands, conventional door devices for vaults are generally single-opening single-doors that use hinges or single-opening single-doors that open and close in the lateral direction. That is, the former supports the door in a cantilever manner through a strong hinge, and the door can be opened by rotating it toward the front side around the hinge, and can also be rotated in the opposite direction to close. be able to. The latter can be opened and closed by pulling a hanging door type sideways door to the right or left.

[0004]

In the former case of the prior art, since a large space for the door to rotate is required in front of the vault, the effective utilization rate of the floor area of a store or the like decreases. The problem of being unavoidable was unavoidable. Further, in the latter case, since the opening / closing direction of the door is one of the left and right directions, the opening / closing stroke of the door becomes large, and there is a problem that the opening / closing operation takes time.

In view of the problems of the prior art, an object of the present invention is to combine a pair of left and right laterally-opening doors with a drive mechanism for driving these doors at the same time, so that a special opening and closing can be performed on the front side. It is an object of the present invention to provide a vault door device that does not require a space for use, has a short opening / closing stroke of the door, and is easy to open / close.

[0006]

SUMMARY OF THE INVENTION To achieve the above object, the structure of the present invention is a mounting frame, a pair of left and right side-opening doors which are mounted on the mounting frame so as to be openable and closable, and these doors are reversed at the same time. The gist of the present invention is to include a drive mechanism that drives in the direction.

The drive mechanism may include a drive motor and two drive chains that are driven by the drive motor and are respectively connected to the door.

The drive chain can be driven via sprockets having different numbers of teeth, and the drive mechanism can have a stopper mechanism that operates at the opening / closing stroke limit of the door.

[0009]

According to the structure of the present invention, the pair of left and right doors can be simultaneously driven in the opposite directions by the drive mechanism, and can be opened and closed at the same time as left and right side-opening doors. The opening / closing stroke is about 1/2 of the opening width of the mounting frame, and the time required for the opening / closing operation is about half that of a single door.

When the drive mechanism is formed by combining the drive motor and the drive chain, the drive chain corresponding to each door can be driven by a common drive motor, and each door is connected via the drive chain. It can be opened and closed by a common drive motor.

If each drive chain is driven via different sprockets, the drive stroke of each drive chain can be made different and the opening / closing stroke of each door can be made different. Therefore, the position of the assembled portion of both doors can be arbitrarily set. It is possible to set.

When the drive mechanism has a stopper mechanism,
Each door can be smoothly stopped without causing an excessive impact, and there is no fear of generating an unpleasant impact sound.

[0013]

Embodiments Embodiments will be described below with reference to the drawings.

The vault door device comprises a mounting frame 10, a pair of left and right side-opening type doors 20 and 30, and a drive mechanism 50 incorporated in an upper frame 13 behind the mounting frame 10 (FIG. 1). ,
(Fig. 2).

The mounting frame 10 is a frame body on which the doors 20 and 30 are mounted so as to be openable and closable in the lateral direction. The lower frame 11 on the floor, the vertical frames 12 on both sides, ... 13 and 13 (FIGS. 1 and 3). However, the left and right vertical frames 12, 12
Is a plate-shaped lower frame 1 so that the doors 20 and 30 are sandwiched between them.
1, which are erected in front and rear in each corner of the upper frame 13,
Are arranged in parallel in the front-rear direction through the spacers 13a, 13a. The lower frame 11 is assumed to be installed at the same level as the floor surface (not shown).
In order to lock the doors 20 and 30 in the closed state, a bar receiver 11a corresponding to a bar member (not shown) is formed. The left and right vertical frames 12, 12, ... Form the front surfaces of the front vertical frames 12, 12 on the same plane as the left and right wall surfaces W, W.

One of the doors 20 has a deformed cross section in which a bent portion 20a protruding toward the front surface is formed on the summing side (FIG. 3). Further, the bent portion 20a projects to the front surface of the other door 30. Therefore, when the doors 20 and 30 are closed, the bent portion 20a can cover and protect the assembling portion M. The bent portion 20a is the door 2
When 0 and 30 are closed, they are positioned at the center of the opening width D of the mounting frame 10.

The doors 20 and 30 have a common plate-shaped guide member 1.
It is hung so as to be able to travel to the left and right via 4 (FIGS. 1 and 4).

The guide member 14 is the spacer 1 of the mounting frame 10.
Are fixed to the guide members 14, and guide rollers 15, 15 ..., 16, 16 ... For suspending the doors 20 and 30 are axially attached to the front and rear surfaces of the guide member 14, respectively. On the other hand, the brackets 2 are provided on the top surfaces of the doors 20 and 30, respectively.
Rail members 21 and 31 that are engaged with the guide rollers 15, 15 ..., 16 and 16 are disposed via 1a and 31a and spacers 21b and 31b. However, the rail material 21,
Each of the protrusions 31 protrudes toward the other door 30, 20 and can support the doors 20, 30 in a cantilevered manner when the doors 20, 30 are opened on both sides. Also, the doors 20 and 30
Grooves 20b and 30a are formed on the lower surface of the
Guide rollers 1 arranged on the lower frame 11 are provided at b and 30a.
7 and 17 are engaged with each other to prevent the doors 20 and 30 from swinging.

A central housing 40 is attached to the front surface of the bent portion 20a formed on the summing side of the one door 20 (FIGS. 1 and 3).

The central casing 40 is composed of an upper casing 41, a lower casing 42, central lock device storage portions 43 and 43, and a handle portion 44. The lock device storage portions 43 and 43 are small opening / closing doors. However, a lock device (not shown) is housed inside. The total width of the central housing 40 is substantially equal to the width d of the bent portion 20a, and the total length is equivalent to the opening height H of the mounting frame 10.

A locking mechanism housing 22 is attached to the rear surface of the door 20 on the assembling side. The locking mechanism storage 22
Along with the bent portion 20a, the summed portion M is sandwiched so as to project toward the other door 30 side, and plate-like bar members 23, 23 that are long in the vertical direction are arranged on the projecting surface. It is assumed that the bar members 23, 23 engage with the bar receiver 30b formed on the rear surface of the door 30 on the assembling side, and the handle part 44 is operated together with the bar member (not shown) corresponding to the bar receiver 11a of the lower frame 11. Through the shaft 44a penetrating the door 20 and a locking mechanism (not shown),
It can be detached from 1a and operated.

The drive mechanism 50 is incorporated in the upper frame 13 behind the mounting frame 10 (FIGS. 2 and 5).

The drive mechanism 50 comprises a drive motor 51 fixed to the rear surface of one end of the upper frame 13, and drive chains 52 and 53 driven by the drive motor 51. The shaft end of the drive motor 51 has sprockets 52a, 53a.
Are fixed, and sprockets 52b and 53b are arranged on the other end side of the upper frame 13. Further, the drive chains 52 and 53 are respectively connected to the sprockets 52a and 52a.
It is possible to circulate along the upper frame 13 by being wound around the b and the sprockets 53a and 53b. The drive chains 52 and 53 are connected to the connecting bracket 52, respectively.
It is connected endlessly via c and 53c, and the connecting brackets 52c and 53c are arranged below the drive chain 52 and above the drive chain 53, respectively. The connecting bracket 52c is connected to the door 20, and
The connecting bracket 53c is connected to the bracket 31a for supporting the rail member 31 of the door 30.

It is assumed that the sprockets 52a and 52b have fewer teeth than the sprockets 53a and 53b.

The upper frame 13 has a stopper mechanism 5 for restricting the left and right drive strokes of the drive chains 52, 53.
4, 54 are attached (FIG. 2).

Each stopper mechanism 54 includes a swing lever 54a.
And a tension spring 5 for urging the swing lever 54a in one direction.
4b and a shock absorber 54c corresponding to an intermediate portion of the swing lever 54a. Swing lever 5
An upper end of 4a is swingably connected to the upper frame 13, and a roller 54a1 is pivotally attached to a lower end of the 4a. One end of the tension spring 54b has a swing lever 54a.
Is connected to the middle part of the, and the other end is locked to the upper frame 13. The connecting bracket 52c attached to the drive chain 52 includes a roller 54 of the swing levers 54, 54.
Bar members 52c1 corresponding to a1 and 54a1 are attached.

The door 20 has a vertical frame 12 whose bent portion 20a is forward.
(Fig. 2), and the door 30 can be opened until the end face on the assembly side does not protrude from the vertical frames 12, 12. Moreover, the doors 20 and 30 can be closed so that the assembled portion M is in close contact (FIG. 3).
Therefore, when the doors 20 and 30 are closed, one door 20
The bent portion 20a and the central housing 40 attached to the bent portion 20a can be located at the center of the front surface of the mounting frame 10 (FIG. 6).

Now, when the doors 20 and 30 are open, the drive motor 51 is started and the sprockets 52a and 53a are rotated in the direction of arrow K1 in FIG.
c and 53c can be driven in the directions of arrows K2 and K3 in the figure via drive chains 52 and 53, respectively.
Therefore, the doors 20 and 30 can be driven simultaneously in the closing direction. Although the opening and closing strokes S2 and S3 of the doors 20 and 30 are S2 <S3 (FIG. 3), the drive chains 52 and 53 have different numbers of teeth on the sprockets 52a and 52b and the sprockets 53a and 53b. Since the former has a smaller number of teeth than the latter, the connecting brackets 52c, 53c can obtain different drive strokes even when driven by the common drive motor 51, and therefore the doors 20, 30 are At the same time, a predetermined closed position can be reached.

When the doors 20 and 30 reach the closed position, the connecting bracket 5 advances in the direction of arrow K2 in FIG.
2c is a bar member 52c attached to the connecting bracket 52c.
One end of the roller 52a1 of one stopper mechanism 54
Abut. Therefore, the swing lever 54a swings in the direction of arrow K4 in the figure, the corresponding tension spring 54b expands, and at the same time, the shock absorber 54c is compressed, thereby braking the connecting bracket 52c.
This can be stopped. Connecting bracket 52c
The braking of the drive chains 52 and 53 is driven by sprockets 52a and 53a fixed to a common shaft, so that the other connecting bracket 53c
Is also effective for the stopper mechanism 54.
Can smoothly stop both doors 20 and 30 in their closed position.

On the other hand, if the sprockets 52a and 53a are rotated in the direction opposite to the arrow K1 direction in FIG. 2 via the drive motor 51, the moving directions of the connecting brackets 52c and 53c by the drive chains 52 and 53 are also indicated by the arrows in FIG. The direction is opposite to the K2 and K3 directions, and the doors 20 and 30 can be simultaneously opened to the fully open position. When the doors 20 and 30 reach the fully opened position, the connecting bracket 52c, which moves in the direction opposite to the arrow K2 direction in FIG. 2, has the other end of the bar member 52c1 contacting the roller 54a1 of the other stopper mechanism 54. Thus, the doors 20 and 30 can be smoothly stopped in the same manner as when they reach the closed position.

That is, the stopper mechanisms 54, 54 regulate the opening / closing strokes S2, S3 of the doors 20, 30 and can operate to smoothly stop the doors 20, 30 at the opening / closing stroke limit.

In the above description, the bent portion 20 of the door 20
The width d of a and the total width of the central housing 40 can be arbitrarily set mainly from the viewpoint of design. The lock device storage portions 43, 43 of the central housing 40, the handle portion 4
The same applies to the form No. 4. The bent portion 20
When the width d of a is changed, the opening / closing strokes S2 and S3 of the doors 20 and 30 may also be changed.
Sprocket 52a, 52b and sprocket 53a, 5
The drive stroke of the drive chains 52 and 53 is adjusted by appropriately changing the number of teeth of the doors 20 and 30.
Shall take the fully open position and the closed position at the same time.

Further, the central housing 40 may be integrally formed with the bent portion 20a and integrally formed with the door 20. That is, the central housing 40 at this time functions not only as a decorative member but also as an antitheft member similar to the doors 20 and 30.

By disposing the bent portion 20a and the central housing 40 on the side of the door 30 instead of the door 20, the entire structure can be left-right-handed.

[0035]

As described above, according to the present invention, the door is provided by providing the mounting frame, the pair of sliding door type doors, and the drive mechanism for simultaneously driving these doors in opposite directions. About half the opening width of the mounting frame due to the drive mechanism
Since the opening and closing strokes of can be opened and closed at the same time to the left and right, no special space for opening and closing is required on the front side of the door, and it is easy to open and close in a short time. effective.

[Brief description of drawings]

FIG. 1 is an overall perspective view

FIG. 2 is an exploded perspective view of essential parts

FIG. 3 is a cross-sectional view taken along line XX of FIG.

FIG. 4 is an enlarged cross-sectional view taken along line YY of FIG.

5 is an explanatory view corresponding to the line ZZ of FIG.

[Figure 6] Overall front view

[Explanation of symbols]

 10 ... Attachment frame 20, 30 ... Door 50 ... Drive mechanism 51 ... Drive motor 52, 53 ... Drive chain 52a, 52b, 53a, 53b ... Sprocket 54 ... Stopper mechanism

Claims (4)

[Claims] 1. A door device for a vault, comprising a mounting frame, a pair of left and right laterally-opening doors that are openably and closably mounted on the mounting frame, and a drive mechanism that simultaneously drives the doors in opposite directions. 2. The door device for a vault according to claim 1, wherein the drive mechanism includes a drive motor and two drive chains which are driven by the drive motor and are connected to the door, respectively. .. 3. The vault door device according to claim 2, wherein the drive chains are driven via sprockets having different numbers of teeth. 4. The door device for a safe room according to claim 1, wherein the drive mechanism has a stopper mechanism that operates at an opening / closing stroke limit of the door.