JP4050673B2 - Security double door - Google Patents

Description

  The present invention relates to a door having various functions such as appearance and ventilation as well as a crime prevention function in an entrance door of a house.

In recent years, functional steel doors have been widely used for entrance doors, including apartment houses made of reinforced concrete buildings.
These doors are superior in functions such as strength and fire resistance, but in recent situations where security enhancements are required, even if the door itself is strong enough for security measures, the picking technology is improved or the lock is improved. The stopping structure has been destroyed one after another, and new countermeasures have been demanded.
Moreover, when these steel doors are used at the entrance of a house, the appearance is emphasized, and it becomes a boundary with the outside and must come in contact with visitors such as visitors and mail delivery via the door. Or, due to limited house design circumstances, an effect of blocking the line of sight along with daylighting and ventilation is also required.
In order to ensure safety by providing double locking devices against this situation, the device has been devised to provide an observation window on a part of the door and to install a window for receiving mail and delivery items. It was.
JP-A-9-32419 JP-A-9-317348

The device described in Patent Document 1 is provided with a small window that can be opened and closed at the center of the door, and an insect screen is provided in the small window so that daylighting, ventilation, and visitor observation are possible.
Moreover, although what is described in Patent Document 2 is a so-called double door, the inner door is sized to cover the opening for customer reception provided on the outer door and the lattice door for ventilation inside the outer door that opens outward. The inner door opens to the inside of the outer door, confirms the visitor through the visitor opening, closes the inner door once and integrates it with the outer door, then the outer door integrated with the inner door The door is opened, and the actual opening / closing operation and function are the same as those described in Patent Document 1.
JP-A-10-88385

The thing of patent document 3 is a typical example of the double door which consists of two independent doors, and in order to achieve functions, such as ventilation and lighting, with the request | requirement on crime prevention, each fire prevention with good fire prevention and lighting property A meshed glass and a steel lattice door with air permeability and a louver with a movable blade structure are provided so that they can be opened and closed separately.
For this reason, one of these two doors can be opened and accommodated in contact with the wall surface, so that each of these functions can be exhibited. However, these doors can be opened independently inside and outside. Since it is a structure that opens and closes, it must always be operated as two independent doors when opening and closing.

  You can open and close two doors with different functions such as daylighting and ventilation, as well as doors that can be confirmed by visitors for crime prevention, as well as doors made of a single piece of doorboard. The doors can be opened and used individually for confirmation, ventilation or daylighting, and the doors can be opened and closed individually.

The first door is supported on the hinge piece of the first hinge fixed to the door frame and the second hinge is provided on the extension of the hinge piece so that the second door can be rotated on the hinge piece. By supporting and overlapping the two doors so that they can rotate around the first hinge, the double door can be opened and closed integrally, and the inner door can be opened with the outer door closed. Open and close and open the outer door together with the inner door,
In addition, first and second hinge pieces having different lengths are rotatably provided around a common shaft of the first hinge fixed to the vertical frame of the doorway side wall, and the first door has a length. The double door can be opened and closed as a result of being supported by the short first hinge piece and the second door pivotably supported by the hinge piece of the second hinge provided at the tip of the long hinge piece. It is possible to open and close the inner door with the outer door closed, and open the outer door with the inner door open.
In addition, first and second hinge pieces having different lengths are provided around the common shaft of the first hinge fixed to the vertical frame of the doorway side wall so as to be independently rotatable. It is a double door that can be independently rotated around a common shaft by being supported by a short first hinge piece and by supporting the second door from a long hinge piece.

  The outer door of the double door is a door structure that can be confirmed relative to the visitor, the inner door is blocked from the line of sight, and the door structure cannot be seen indoors. A handle is provided, and a clutch mechanism that transmits the rotation of these handles is provided on the side adjacent to the double door so that the latch bolts provided on each door can be operated in conjunction with each other. By providing a mechanism for connecting and opening the doors in contact with each other between the two doors, the double doors can be operated as one body and opened and closed, and the inner and outer doors can be opened and closed independently. It is a heavy door.

The double door of the present invention can achieve the respective functions by using two doors properly, and can be handled and operated in the same manner as a single door.
For this reason, although it consists of double doors each having a separate function, the two doors can be used properly to achieve each function and can be operated as easily as a single door.

An example of the combination of double doors applied to each invention of the present application is shown in FIG.
In the figure, (A) is an example of an inner door, which is a door made of wood-grained plate material, has a structure in which the interior of the house cannot be seen and the wind does not blow through, and a fire-resistant material is used as necessary.
The figure (B) consists of a steel lattice door as an example of an outer door. It can be confirmed by facing a visitor or the like from between the lattices, and has air permeability and daylighting. When the inner door is opened, wind can be introduced into the house or daylighting can be achieved.
In addition, if a net or the like is stretched together with the lattice structure, it is possible to prevent invasion of harmful insects such as mosquitoes while ensuring ventilation and lighting.
In addition, since (A) and (B) figure are the states seen from the inside and outside, respectively, the right and left of the door are opposite.

An application example of the first invention is shown in FIGS.
(A) With the double door closed, for normal opening and closing, the inner and outer doors are integrally opened and closed as shown in (B).
Open the inner door as shown in (C) for confirmation of visitors, ventilation and daylighting, and close the inner door from this state to invite visitors, etc. As shown in (B), open the two doors together.
The hinge structure and details are shown in FIGS.
The outer door 2 and the inner door 1 are a first hinge piece 22 of a first hinge 8 fixed to a vertical frame 6 on the doorway wall side, and a second hinge of a second hinge provided on the extension of the first hinge piece. Each piece is fixed to the piece 23 and can be rotated around the shaft 20 of the first hinge in an overlapped state to be opened and closed outward. In addition, the inner door can be opened inward with the outer door closed, and ventilation can be achieved in this state, or a visitor can be faced and confirmed. Furthermore, when inviting a visitor, after closing an inner door once, the inner and outer doors can be opened as an integral opening.

FIG. 5 (A) to (C) and (A ′) to (C ′) show the opening and closing states of the door and the hinge, respectively.
(A) to (C) and (A ′) to (C ′) in FIG. 5 correspond to the respective open / closed states, and the states where the inner and outer doors are closed together (A), (A ′), and the outer opening. (B) of the opened state, and (C) and (C ′) of the inner door opened inward with respect to the outer door.
In addition to the hinge structure described above, the inner door can be opened and closed integrally with the outer door overlapped with the outer door, and if necessary, only the inner door can be opened and closed according to these operations. Coupling mechanism that allows them to be joined together or separated and opened and closed separately, and a clutch that allows the lever handle (knob) of the two doors to work together to operate the latch bolt when the two doors are joined A mechanism is needed.
6 and 7 show a clutch mechanism for interlocking these handle operations and a coupling mechanism for coupling the inner door and the outer door together.

In the clutch mechanism 30 shown in FIG. 6, the clutches 31 and 32 projecting from the side surface of the case on the side where the inner and outer doors are brought into contact with each other are pressed against each other by the coil spring 33 and the clutch gear 34 formed on the opposite surface is engaged. By operating one lever handle 9, the latch bolts 35 and 36 of the inner and outer doors can be operated simultaneously.
An example of a mechanism for coupling / separating the double door is shown in FIG.
The inner / outer door coupling mechanism 40 includes a rod 43 that moves up and down through a guide 42 by a turning operation of a thumb turn 41 on the inner door, and a pivot 45 that the rod 43 passes through and locks to the outer door 2. The double door can be uncoupled by rotating the thumb turn and retracting the rod from the pivot 45. By opening the gap between the two, the clutch mechanism 30 is separated and the inner and outer doors can be operated independently. It becomes. This inner / outer door coupling pivot mechanism can also be opened by turning the lever handle.
It should be noted that the inner / outer door coupling mechanism may be provided close to the position of the handle for convenience of operation, or may be arranged and interlocked on the left and right sides of the door for further solid coupling.
Further, since the coupling mechanism of the inner and outer doors and the coupling / separation of the clutch mechanism are a series of operations, they may be linked by a link mechanism or the like. In short, if there is a two-door combination / separation mechanism and a handle interlock mechanism, the double door opening / closing operation of the present invention can be achieved, and the specific mechanisms and types to achieve these functions are: It doesn't matter.

That is, the mechanism for operating the latch bolt by interlocking the handle of the double door, or coupling / separating the two doors is not necessarily limited to the illustrated clutch mechanism and the inner / outer door coupling pivot mechanism 40. Even a mechanism in which the trigger is locked by rotating the sickle metal by pushing against each other like a sickle metal as a mechanism for connecting the inner and outer doors as a mechanism to connect the inner and outer doors, or as a mechanism for connecting the inner and outer doors good.
Since these mechanisms are well known and applied as design matters, they will not be described in detail here.
In the double door of the present invention, the inner and outer double doors can be opened and closed in the same manner as a single door by operating the lever handle. However, if the door is opened by an unauthorized means such as picking from the outside, the outer door If the door is not opened, the inner door cannot be accessed and requires a two-step procedure. In addition, since the doors are joined by operation from the inner door side, the double doors must be uncoupled and opened. Locking is more difficult.

The open / closed state of the inner and outer doors and the mechanism thereof according to the second invention are shown in FIGS.
8A to 8D show a state where the double door is closed, a state where the inner and outer doors are integrally opened to be opened outward, and a state where the inner door is opened inside such as when facing a visitor during ventilation. Next, a state where the outer door is opened and opened is shown.
9A to 9D show the relationship between the hinge structure and the open / closed state of the door. The hinge includes a first hinge piece 22 and a second hinge piece 23 that rotate independently around a first shaft 20 fixed by a vertical frame fixing hinge piece 21 fixed to a vertical frame on the doorway wall side. The outer door 2 is fixed to the first hinge piece 22, and the inner door 1 is fixed to the third hinge piece 26 that rotates around the second shaft 25 provided in the extension portion of the second hinge piece.
FIGS. 9A to 9D correspond to the double door opening and closing modes shown in FIGS. 8A to 8D, respectively. According to the second invention, the door opening and closing for inviting visitors is shown. The operation can be performed by opening the outer door to the outer opening while the inner door is opened to the inner opening.

The third invention is the mechanism of the second invention, wherein the second hinge and the third hinge piece are omitted, the second door is fixed to the extension of the second hinge piece, and the door is fixed to the first hinge piece. Double doors are constructed by overlapping them.
In this case, the first hinge piece and the second hinge piece having different lengths rotate around the first shuff serving as a common rotation axis, and referring to FIG. 9 which is an explanatory view of the second invention. The second hinge piece is longer by the thickness of the inner door than the first hinge piece to which the outer door is fixed, and the two doors can be overlapped due to the difference in the length of these hinge pieces.
Therefore, the inner and outer doors can be opened and closed as a single door, and can be independently rotated according to the range permitted by the rotation angle of the hinge piece of the hinge. (Not shown)

In addition to the above, the double doors are both pivotably attached to hinges fixed to the wall frame, but the outer doors are pivotally attached to hinges fixed to the doorway wall frame, A pivot for pivoting the inner door is provided on the horizontal frame, the inner door is coupled to the outer door by the coupling mechanism and the clutch mechanism described above, and the pivot shaft protrudes at the same time as the coupling mechanism is released by pivoting the handle at the pivot position. The inner door can also be opened inward with respect to the outer door by allowing it to rotate around the pivot shaft.
Furthermore, structurally, by attaching the inner door to the side edge of the outer door on the hinge side via the hinge, it is possible to provide the same function as the first invention with a simple structure.

The double door of the present invention can use two doors having different functions according to the function, and can confirm the visitor in a state where the outer door such as a strong grill structure made of steel is closed. Thus, it is possible to improve the crime prevention function and to invite these visitors by operating in the same manner as a single door.
For this reason, detached houses can, of course, be widely adopted in entrance doors such as apartment houses where it is difficult to secure sufficient space. To meet the needs of the industry and contribute to the development of industry.

The example of the door applied to the double door of this invention. A structure that blocks the line of sight and prevents the view from the inside (A), and a structure that can confirm visitors relative to the steel grill structure (B). The opening / closing operation | movement of the double door of 1st invention is shown. The double door hinge structure of the first invention. The detailed structure of the double door of 1st invention. The relationship between the open / close state of the double door of the first invention and the hinge structure is shown. The clutch mechanism example of the double door of this invention. The coupling | bonding mechanism example of the double door of this invention. The figure which shows the open / close state of the double door of 2nd invention. The figure which shows the state of the hinge corresponding to the open / close state of the double door of 2nd invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inner door 2 Outer door 5 Doorway vertical frame 6 Doorway vertical frame 7 2nd hinge 8 1st hinge 9 Lever handle 13 Screen (net)
14 Grill (steel lattice)
20 First hinge shaft 21 Vertical frame fixed hinge piece 22 First hinge piece 23 Second hinge piece 25 Second hinge shaft 26 Third hinge piece 30 Clutch mechanism 31, 32 Clutch 33 Coil spring 34 Clutch gear 35, 36 Latch bolt 40 Inner / outer door coupling mechanism 41 Thumb turn 42 Rod guide 43 Rod 45 Pivot

Claims (5)

The first door is supported by the hinge piece of the first hinge fixed to the doorway side wall vertical frame, and the second hinge is provided on the extension of the hinge piece so that the second door can be rotated on the hinge piece. A double door that supports and supports two doors so that they can rotate around the first hinge. The first and second hinge pieces having different lengths are rotatably provided around the common shaft of the first hinge fixed to the door side wall vertical frame, and the first door has a short length. A double door characterized in that it is supported by one hinge piece and the second door is rotatably supported by a hinge piece of a second hinge provided at the tip of the long hinge piece. The first and second hinge pieces having different lengths are rotatably provided around the common shaft of the first hinge fixed to the door side wall vertical frame, and the first door has a short length. A double door characterized in that it is supported by one hinge piece and the second door is supported by a hinge piece having a long length. The double door according to any one of claims 1 to 3, wherein an outer door of the double door has a door structure that can be confirmed relative to a visitor, and the inner door has a door structure that blocks a line of sight and cannot be seen indoors. door. A handle is provided opposite to the opposite side of the double door, and a clutch mechanism is provided on the side adjacent to the double door to transmit the turning operation of these handles, and the latch bolt provided on each door is interlocked. In addition, by providing a mechanism for connecting and separating and opening the doors in contact with each other between the double doors, the double doors can be operated as a unit and opened and closed, The double door according to claim 1, wherein the inner and outer doors can be opened and closed independently.

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