JP2005016056A - Anticrime structure of steel door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel door which can adequately cope even with the intrusion of a strong-arm, violent housebreaker in spite of an extremely simple structure, and which takes on a higher added value in terms of crime prevention without causing damage to designability of a shape, a design, etc. <P>SOLUTION: The steel door 1, the front side and backside of which are integrated with each other, is composed of an indoor-side panel 7 and an outdoor-side panel 6, which have a required depth; a space part A, which is formed between inside surfaces of the respective panels 6 and 7, is filled with a soundproof core material B; and a high-hardness metal plate 15, whose thickness is greater than a board thickness of the panel, is stretched between the whole area of an inside surface except a mounting part of a door constituting member of at least one of the respective panels 6 and 7, and the core material B. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a steel door adopted as an opening door provided at an entrance of a condominium, a high-rise building or the like, and more particularly, to a steel door crime prevention structure with a greatly enhanced crime prevention function.
[0002]
[Prior art]
Conventionally, in a steel door constructed by integrating an indoor side panel and an outdoor side panel having a required expected width, a locking mechanism provided on the handle part of the door and a locking mechanism provided separately from this are provided. Although it is known to have a crime prevention function by using multiple combinations, most of the `` intrusion robbery '' that has increased in recent years has entered from entrances and entrances such as entrances using the steel door with the above crime prevention function In addition to “picking” that unlocks by inserting a special tool that substitutes for the key into the keyhole, there are “cam feed unlocking” and “bypass unlocking” as the entry method. It is generally said that an intrusive act will give up the intrusion if it takes more than 5 minutes, and based on this, the development of a new locking mechanism that can counter various intrusion methods is being carried out at a rapid pace.
[0003]
On the other hand, the intrusion method of the intrusion robbery described above is characterized by an “intelligent offense” -like operation that skillfully uses the structure of the locking mechanism, but recently, in addition to these methods, Or, use a manual drill to break the locking mechanism, or use the drill to open a through-hole that is large enough to allow a hand to enter, and then enter the door after unlocking it. In order to counter this, the intrusion method of forcible and rough intrusion burglars is revealed, and if the thickness of the indoor side panel and the outdoor side panel is increased, the press workability in the manufacturing process decreases, the shape and design The advent of a steel door having a higher security function while securing the production efficiency of the steel door is included.
[0004]
[Problems to be solved by the invention]
The present invention was devised in the course of research and development aimed at further improving the security function of steel doors in view of the actual situation as described above, and its purpose is an extremely simple structure. It is intended to provide a crime prevention structure for steel doors that can sufficiently resist the invasion of forcible and rough intrusion robbery and has higher added value on crime prevention without impairing the design properties such as shape and design. It is.
[0005]
[Means for Solving the Problems]
In order to solve the problem, the first technical means adopted by the present invention is to construct a steel door that is integrated with the front and back by an indoor side panel and an outdoor side panel having a predetermined expected width. The space formed between the inner side surfaces is filled with a soundproof core material, and among the above-mentioned panels, between the entire inner side surface of at least one panel and the soundproof core material, a high hardness that is thicker than the thickness of the panel. The metal plate is stretched.
[0006]
The second technical means adopted by the present invention is characterized in that the metal plate is stretched over the entire inner surface of the indoor panel.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the figure, reference numeral 1 denotes a steel door provided at the entrance of a house, and the steel door 1 is provided with a required thickness (implemented) on a metal quadrilateral frame 5 composed of left and right vertical frames 2 and upper and lower frames 3 and 4. In this embodiment, the metal outdoor side panel 6 and the indoor side panel 7 having a thickness of 0.6 mm are stretched over the entire front and back door surfaces, and each panel 6 positioned at the peripheral edge of the metal quadrilateral frame 5. , 7 are bent in the prospective width direction, and the steel door 1 is formed by fixing the edges of the panels 6 and 7 to the end face of the metal quadrilateral frame 5 via the rivets 8, 8. Is configured.
[0008]
In the space A inside the steel door 1, as shown in FIG. 2, the door closer mounting portion 10 formed on the suspension base side of the upper frame 3 and the door end side of the lower frame 4 are located. The soundproofing core material B having a sound insulation and soundproofing function is provided in the upper and lower space parts A1 and A2 over substantially the entire area of the space part A, except for the opening fixing metal fitting part 11 and the lock mounting part 13 which will be described later. , A3 are filled as three members through the butted portions 9 and 9, respectively.
[0009]
In addition, 12 is a hinge that is mounted and fixed at three vertical positions of the vertical frame 2 on the suspension side, 13 is a lock mounting portion of a locking mechanism that is installed in the space A2 adjacent to the vertical frame 2 on the door end side, Reference numeral 14 denotes a fluoroscopic lens mounting portion provided in the center of the upper space portion A1.
[0010]
Here, in the present invention, in particular, on the inner side surface of the indoor side panel 7, between the soundproofing core material B and a metal with a high hardness that is thicker than the plate thickness of the indoor side panel 7, as shown in FIGS. A plate 15 is stretched on the inner surface of the panel 7 via an adhesive (not shown).
[0011]
That is, the metal plate 15 is made of an austenitic stainless steel plate (in this embodiment, SUS304 having a plate thickness of 1.5 mm is used), the liner portion 10a of the door closer attachment portion 10, the liner portion 11a of the metal fitting attachment portion 11, and It is stretched so as to cover the entire inner surface of the indoor side panel 7 except for each mounting position of the lock mounting portion 13. In general, each door component is mounted from the indoor side for security reasons. Ideally, the metal plates 15 are stretched on the inner side surfaces of both the indoor side panel 7 and the outdoor side panel 6 respectively. However, in consideration of an increase in the weight of the steel door 1 and an increase in manufacturing costs, the outdoor side panel 6 emphasizes design and design, and the outdoor side is subjected to decorative processing for that purpose. In the embodiment of the present invention, the metal plate 15 is stretched on the indoor side panel 7 side of the steel door 1 because the inner surface of the panel 6 is not simply flat and is not suitable for stretching the metal plate 15. By doing so, the steel door 1 is provided with a necessary and sufficient crime prevention function.
[0012]
Since the steel door 1 of the present invention is configured as described above, the outdoor side panel 6 and the soundproofing core material can be used even if an intrusion action is attempted using an electric or manual drill in a building opening employing the steel door 1. B can be penetrated in a relatively short time, but the indoor side panel 7 beyond that takes time to penetrate due to the presence of the metal plate 15 stretched on it, so that the intruder gives up the intrusion, forcibly and A rough intrusion robbery can be prevented in advance.
[0013]
In addition, the steel door which employ | adopted the metal plate 15 which consists of the austenitic stainless steel plate (SUS304) with a board thickness of 1.5 mm and the indoor side panel 6 and the outdoor side panel 7 with a board thickness of 0.6 mm shown in this Embodiment. 1, it has been experimentally found that penetration from the outdoor side to the indoor side by a manual drill is impossible.
[0014]
Further, as the metal plate 15, in place of the austenitic stainless steel plate of SUS304, a martensitic stainless steel plate (SUS410 or the like) which has been hardened and tempered to increase the hardness, or only by cold working, the metal plate 15 is high. By adopting other austenitic stainless steel plates (SUS301, etc.) that can obtain hardness, it is possible to provide the steel door 1 with a higher security structure against drilling and intrusion by electric drills and manual drills. It becomes possible.
[0015]
FIG. 5 shows the configuration of the steel door 1 shown in the embodiment, and the entire area of the inner side surface excluding the mounting positions of the door closer mounting part 10, the metal mounting part 11 and the lock mounting part 13 of the indoor side panel 7, When the above-described metal plate 15 is stretched between the soundproofing core material B, the metal plate 15 is stretched over the entire inner surface of the indoor side panel 7 via a viscoelastic polymer resin material. It is.
[0016]
In this configuration, a viscoelastic polymer resin material 16 (adopting a polyethylene resin in the embodiment) having vibration damping performance is closely attached and fixed between the metal plate 15 and the indoor side panel 7 for vibration damping. It has a function as a plate, and with this construction, it occurs when the steel door 1 is opened and closed, especially when it is automatically closed by a door closer, with the contact with the door frame and with the closing operation stopped. The vibration of the steel door 1 itself can be attenuated, and in combination with the soundproofing effect of the soundproofing core material B filled in the steel door 1, it is possible to reduce noise and to suppress chatter.
[0017]
【The invention's effect】
In short, the present invention provides a soundproof core in a space formed between the inner side surfaces of the above-mentioned panels in order to form a steel door that is integrated with the front and back by an indoor side panel and an outdoor side panel having a predetermined expected width. A high-hardness metal plate that is thicker than the thickness of the panel between the entire inner surface except for the mounting portion of the door component member in at least one of the panels and the soundproof core material. Because it is equipped with sound insulation and soundproofing functions as a steel door,
(1) The locking mechanism was destroyed using an electric or manual drill, or a through hole large enough for a hand to enter was opened on the door surface and unlocked by inserting a hand from there. It is possible to provide a necessary and sufficient crime prevention structure against a forcible and rough intrusion robbery intrusion that invades indoors later, and it is possible to provide a steel door that meets customer expectations.
In addition, the metal plate is stretched over the entire inner surface of the indoor side panel excluding the mounting portion of the door component,
(2) A steel door that also has a crime prevention function while securing the degree of freedom of decoration of the outdoor side panel that emphasizes design and design, increasing the individuality and product value as a steel door and expanding the range of product selection Can be provided.
It has a very useful novel effect.
[Brief description of the drawings]
FIG. 1 is an overall front view of a steel door.
FIG. 2 is an overall front view of a steel door with an outdoor side panel removed.
3A is a cross-sectional view taken along line AA, FIG. 3B is a cross-sectional view taken along line BB, and FIG. 3C is a cross-sectional view taken along line CC.
FIG. 4 is a sectional view taken along line DD.
FIG. 5A is a cross-sectional view of another example of a steel door. (B) is the principal part expanded sectional view same as the above.
[Explanation of symbols]
1 Steel door 6 Indoor panel 7 Outdoor panel A Space B Soundproof core 15 Metal plate

Claims (2)

In order to construct a steel door that is integrated with the front and back by an indoor side panel and an outdoor side panel having a required expected width, a space formed between the inner side surfaces of each panel is filled with a soundproof core, and the above Among each panel, a high-hardness metal plate thicker than the thickness of the panel is stretched between the entire inner surface excluding the mounting portion of the door component member in at least one panel and the soundproof core material. Security structure of steel door. The steel door crime prevention structure according to claim 1, wherein the metal plate is stretched over the entire inner surface of the indoor side panel excluding the mounting portion of the door component.

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