JPH11101045A - Door guard system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve crime preventive property by arranging an extensible/ contractible (collapsible) door guard in a door tip part so as to be freely detachably, arranging a two-stage lock device, and prevening intrusion even if it is opened to a degree capable of receiving home-delivery goods. SOLUTION: A door guard 4 and a separate part 8 composed of metal, lightweight aluminium, a synthetic resin and synthetic fiber having extensibility/ contractibility and strength, are arranged between a door frame 3 of a building and a tip part of the door 2, and are installed so as to play a role similar to a crime preventive door chain. The door guard 4 can be formed as a folding screen-shaped collapsible type and a shutter-shaped rolling-in type, and can also be installed in a double sliding door. In the case of receiving cleaned goods and home delivery goods, it can be widely opened without removing the door guard 4, and at absent time, a dealer widely openes it by operating a two-stage lock device 7, and houses a cargo in the separate part 8. Therefore, the cargo can be received without opening a door, and safety and facility can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door guard disposed inside a door of a building to secure security.

[0002]

2. Description of the Related Art Door chains, door guards and the like are used for transportation. However, sales visits,
The response and delivery work of a courier service or the like is inconvenient because the width of the door chain or door guard is narrow, so that the door is opened and the door is fully opened. For this reason, the absence of women, women, the elderly, and the sick is extremely dangerous, and accidents such as burglary and malicious sales tend to occur frequently.

[0003]

However, such conventional devices are fixed by an inner chain or metal fittings, etc., have a narrow opening width, and cannot sufficiently cope with them unless the door is opened. Therefore, according to the present invention, even if the door is opened widely in consideration of security, the door guard is in a locked state and can be processed from the receiving port, so that no illegal intrusion occurs.
In addition, even when the user is absent, the locker of the detection system according to the second invention can be operated, and the specific person can use the receiving port attached to the door guard to enter a courier service. The purpose of the present invention is to provide a door guard system that ensures security.

[Means for Solving the Problems]

[0004] In order to achieve the above object, the present invention provides:
It is characterized by having the following configuration. That is, in the first plan of the present invention, the door guard provided on the door is expanded and contracted to secure the necessary space for the response port and the reception port to cope with crime prevention. The second alternative is characterized by a system in which the same operation can be performed by operating the detection part of the door entrance to extend and contract the door guard even in the absence.

[Embodiment of the invention]

[0005]

Next, embodiments of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited to these embodiments. 1 to 4 show an embodiment of the present invention. First, a first embodiment will be described with reference to FIG. FIG. 1 is a view showing an entire door guard system 1 according to the present invention. In the figure, reference numeral 2 denotes a door of a building. And the door guard 4 is open. In addition, the separate part 8 at the upper part of the door guard is rotatably opened and can be used as a reception port for visitors and home delivery. When the second-stage two-stage locking device 7 is installed, the door is opened by the first-stage unlocking operation by the lock operation of the specific person from the outside when the user is absent. You can take in cleaning and courier service from. Then, when returning home, the door guard can be unlocked to unlock the second stage and enter the house.

FIG. 2 shows a foldable door guard to be attached to a door according to the present invention. The upper separate portion is a mechanism which is opened by being rotatably opened. It can be used as a mouth or storage pocket, and can be removed and replaced with other parts to add new added value. The hinge 5 can also be removed, and the hook 6 can be easily removed from the door by removing the hook 6 from the locking device. Next, the locking unit 7 may be a system that can lock and unlock the entrance door and door guard with a card or a key, or a type that can be locked and unlocked with an encryption system. For example, the door can be opened to a specific trader such as a U.S. store or a delivery person who has been contacted in advance, and the door can be opened and delivered to the door guard receiving port.

FIG. 3 is an enlarged cross-sectional view of FIG. 1 showing a storage box 10 for storing a roll-in sheet type 14 in which the form of the door guard is a net or sheet made of synthetic resin or metal. Alternatively, the storage box 10 can be attached to the door side or inside the door.

FIG. 4 shows that, in the case of the sliding door 13 as well, the vertical bars 11 of the door guard are connected by the chain 13 and pulled one after another and closed, and the movement is locked by the stopper device 9 on the way. I can do things.

The material of the door guard used in the present invention is preferably metal, lightweight aluminum, synthetic resin or synthetic fiber in consideration of elasticity and strength.

[0010]

Since the present invention is constructed as described above, it is safe and convenient because it is not narrow like a conventional door guard, and there is no need to open a door. New added value is also conceivable by attaching nets and pockets to the reception and courier service reception. A new service software in combination with Heisei 8-Utility Model 3327 is also conceivable in which the net can be blown in to improve the ventilation of the room and the pockets can be filled with things.

[Brief description of the drawings]

FIG. 1 is a schematic view showing the entirety of a folding door guard according to the present invention.

FIG. 2 is a system schematic diagram of the folding door guard of the present invention.

FIG. 3 is an enlarged sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged sectional view taken along line AA in the case of a sliding door.

[Explanation of symbols]

 1. 1. folding door guard system, Door, 3. Door frame, 4. 4. Folding door guard, 5. Bookkeeping for mounting, 6. Locking hook, Locking section 8. 8. Separate part of door guard 9. Stopper mounting part, Storage box, 11. Vertical bar type, 12. 12. chains, 13. sliding door type; Entrainment sheet type,

Claims (2)

[Claims] 1. A door guard disposed on a door or a door frame of a building, wherein a door guard body is extendable and contractable when the door is opened and closed, and can be removed, partially combined or replaced. A movable door guard having a lock device for locking and unlocking the door guard body in a state. 2. A movable door guard according to claim 1, wherein a lock device of a two-stage lock system for unlocking the door of the door guard system and unlocking the door guard is provided at an entrance portion of the door, and is operated by a detection signal. .