JP4517221B2 - Security door with a thumb-tan prevention structure - Google Patents

Description

  The present invention relates to a door installed at an opening of a building, and more particularly, to a crime prevention door having a thumbtan rotation prevention structure which has a crime prevention property by preventing so-called rotation of the thumb tongue.

  A through hole penetrating the door is drilled from the outside of the door or the like by a metal processing drill, and a metal bar material having an L-shaped bent end is inserted through the through-hole, and the L-shaped bent portion is inserted into the door chamber. It is known that an intruder who is soaked by a so-called thumbtan is rampant, being hooked on the inner thumbtan and rotating the thumbtan to unlock the door lock and enter the room.

  For this reason, for example, a locking / unlocking key similar to that on the outdoor side is installed on the indoor side, the key is removed and stored after locking on the indoor side, and the unlocking operation is performed using the key at the time of unlocking. By doing so, a door lock has been proposed in which the thumbtan to be operated by the metal bar material is not installed.

Japanese Patent Laid-Open No. 11-93482 (see [0021] column, FIG. 2)

  In this case, since there is no thumbtan, it can effectively prevent the thumbtan turning, but on the other hand, the key operation is required for the indoor unlocking, which can complicate the unlocking and can lose the key. In other words, there are problems such as the possibility that the key operation or loss may become an obstacle to emergency evacuation, and the cost of the door lock increases.

  For this reason, it is necessary to take measures to effectively prevent the rotation of the thumbtan in a state where a thumbtan that is generally used on the indoor side is installed as it is so that the door lock can be locked and unlocked as usual.

  The present invention has been made in view of such circumstances, and a solution to the problem is to provide a security door with a thumbtan rotation prevention structure that can reliably prevent rotation of the thumbtan with a simple structure as much as possible. is there.

According to the present invention, the drill used for turning the thumbtan is a relatively small and battery-type electric drill, and the drill tends to have a relatively small diameter of about 8 mm. Intruders do not like to take time to intrude to avoid eyesight, and generally tend to be unlocked for about 30 seconds or less, doors are generally thick (expected dimensions) There is about 3.5～4Cm, that its thickness is between the inner and outer door surface material is arranged core material such as honeycomb is ensured, Samutan turning is upwards or downwards to the side of Samutan Focusing on the overwhelming L-shaped area range of about 2 to 3 cm , the glass that receives and spins the sharp tip of the electric drill between the inner and outer surface materials of the door , , Sheet glass or grated glass And interposed a square glass plate by, the drill progression disorders, L-shaped area range of the upper and side of the single Samutan position In the lever handle lock with which the drill progresses disorders The door surface on the outdoor side is formed in a front T-shape covering the push-pull lock and covering the sides of the pair of upper and lower thumb tongues separately from each other. Even if the drill is inserted into the door through the material, the drill progress failure can prevent the drill from progressing in the thickness direction of the door and prevent its penetration. the invention described in claim 1, comprising a door lock by the push-pull lock having a lever handle lock or a pair of upper and lower Samutan with a single Samutan drill near Samutan position of the door lock between the inner and outer surface material The sharp tip a security door which prevents Samutan turning incorporates a rectangular glass plate by plate glass or wire glass prevents the penetration by the receiving idle, the rectangular glass plates of the same shape it The two rectangular glass plates are used for the spacers in the space arrangement formed by using two pieces in the door surface direction and incorporating them into the door, by partially removing the core material between the inner and outer surface materials. by adhesively fixed, the top and sides of the intermediate position or the side edge in a room outside one displaced position be in and the lever handle lock contact pair in the door lock that the single Samutan position of the space covering the L-shaped area ranging in the front T-shape, in the above push-pull lock spaced laterally vertically over the side of the above pair of upper and lower Samutan position respectively This is a crime prevention door having a thumbtan anti-rotation structure characterized in that it is arranged by arranging them as a gist of the invention as a gist of the invention.

Since the present invention is constructed as described above, a glass plate that receives and spins the sharp tip of the electric type drill between the inner and outer surface materials of the door , that is, a rectangular glass plate made of plate glass or netted glass is interposed. Te, which together the drill progresses disorder When drilling progresses failure to cover the L-shaped area range of the upper and side of the single Samutan position in the lever handle lock front T-shaped, The push-pull lock has a built-in arrangement that covers the sides of the pair of upper and lower thumb tongues and is spaced apart from each other in the vertical direction . be inserted, built together with the drill progresses failure to prevent the penetration by blocking the progression of the drill to the door thickness direction can reliably prevent Samutan once in as much as possible simple structure It is possible to provide a security door Samutan turning prevention structure with a drill progression disorders without increasing the cost of especially the weight up and doors by location.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a security door having a thumbtan anti-rotation structure. For example, a core material such as a honeycomb core, filled glass wool, filled urethane or the like (not shown), 4 is a door lock, 5 is a thumbtan, 6 is a door scope, and 7 is a door frame.

The security door 1 includes a door lock 4 by a lever handle lock having a single thumbtan 5 or a push-pull lock having a pair of upper and lower thumbtan, and a sharp angle of a drill near the thumbtan position of the door lock 4 between the inner and outer surface materials 2. It is assumed that a rectangular glass plate 10 made of plate glass or netted glass that prevents the penetration of the tip portion by idling is built in to prevent rotation of the thumb tongue. At this time, the rectangular glass plate 10 is in the same shape built into the door 1 with use two in the surface direction of the door, the two spacer 12 spaces 11 located which is formed by partially removing the core member 3 between the inner and outer surface material 2 rectangular by the adhering and fixing each glass plate 10, the door lock and the side edge in the intermediate position or inside and outside one displacement position of the space 11 of In the paired contact and the lever handle lock to cover the L-shaped area range of the upper and side of the single Samutan 5 located opposite the T-shaped, the said vertical In the above push-pull lock This is performed by covering the sides of the position of the pair of thumbtans 5 so as to be spaced apart from each other vertically .

The rectangular plate 10 made of plate glass or netted glass can be prevented from proceeding by receiving and slipping the drill. For example, by pulling back the drill and bringing the sharp tip into contact with the surface, a crack is generated. Since progress may be possible, the thickness of the drill is excellent in preventing cracks due to the impact of the drill, for example, about 3 mm or more, generally 4, 5 mm , especially about 5, 6 mm or more. A thick-walled one is preferably used, and a wire-containing or net-containing one is particularly preferred for improving the glass strength. When using standard glass, it is recommended to use, for example, 6.8 mm thick netted glass because of its availability and good drilling prevention. It is natural that the maximum thickness is within the door surface material 2 without exceeding the thickness of the door 1.

The rectangular plate 10 made of glass or ceramic is disposed between the inner and outer surface materials 2 of the door 1. Generally, the position where the through hole is formed by rotating the thumbtan is around the door lock 4, particularly a lever handle lock. As shown in phantom lines in FIG. 2 in the example of the door and FIG. 4 in the example of the door using the push-pull lock, above (or below) the thumbtan 5 position (may be referred to as the cylinder position) of the door lock 4. or because it is overwhelmingly be an L-shaped area range of about 2~3cm laterally, the in the present example internal arrangement of the glass plate 10 of the rectangular door lock 4 near the door 1 The predetermined area range is set so as to allow a relatively large margin. Thus, for example, the weight of the door 1 is increased and the built-in arrangement does not increase the cost.

At this time, the rectangular plate 10 made of plate glass or netted glass is a rectangular plate having a predetermined thickness of about 3 mm or more and having a size of about 10 × 20 cm, and the lever handle lock is a door lock 4. In the example of FIGS. 1 and 2, the plate-like drill progress obstacle is built in the upper part and the side part of the thumbtan 5 position of the door lock 4 so as to have a height of about 10 cm, a width of 20 cm, In the example of FIGS. 3 and 4 in which the area range is formed so as to form a front T shape having a width of 10 cm and a height of 20 cm, and the push-pull lock is a door lock 4. The upper part (or lower part) of the thumbtan 5 position overlaps with the case of the door lock 4 to form a rectangular shape having a height and width of 10 cm vertically on the side of the thumbtan 5 position, excluding the overlapping position. It is to carry out the said area range as.

In this example, since the core material 3 is interposed between the door surface materials 2, a space 11 is formed by removing the core material 3 of the plate portion of the rectangular glass plate 10, and the space 11 is attached to the space 11. Thus, the door 1 is disposed at an appropriate position such as an intermediate position in the thickness direction of the door 1 or one of the indoor and outdoor sides, for example, a displacement position on the outdoor side.

  In the example of FIG. 5, the drill progress obstacle 10 is mounted by, for example, arranging a spacer 12 in the space 11 for removing the core material 3, and fixing the plate by using a fixing means such as adhesion. It is assumed that this is performed by being sandwiched at an intermediate position of the door 1, and in the example of FIG. It is as a thing. In the example of FIGS. 7 and 8, the space 11 is formed in a slit shape, and the drill progress obstacle 10 is directly fixed to the space with an adhesive or an adhesive, and similarly held at the intermediate position or one-side displacement position of the door 1. It has been done by.

As described above, in the door 1 in which the rectangular glass plate 10 is arranged as a drill advancement obstacle, the electric type metal processing drill penetrates the door surface material 2 on the outdoor side, but the acute angle tip part advances the drill. When the obstacle 10 is reached, it can be received and spun on its surface, so that its progress can be physically blocked at the plate position of the door 1, and through-hole drilling by drilling an intruder without taking a long time Can be prevented, and the rotation of the thumbtan can be prevented at a relatively early stage of the perforation.

  As shown in the experimental results, as Example 1, the door surface material is a 0.6 mm decorative steel plate, and a 6.8 mm thick netted glass is incorporated as a rectangular plate in a condominium door having a honeycomb core as a core material. For metal processing that uses a spacer (with a spacer, but has a through hole at the drill position so that the drill hits the glass), and the door is fixed horizontally, making it an electric type and fully charged Using a commercially available drill (drill diameter: 8 mm), the tip of the drill was put on the upper surface of the outdoor side and a switch was turned on to attempt to drill a vertical hole, and the time was measured. The decorative steel plate penetrated at the same time as the switch was turned on, but after the resistance of the glass with mesh was generated, it was pressed to put on the weight, but the tip was idled and the progress was blocked, and after continuing this for 60 seconds, the switch was turned on. Chopped. The netted glass was taken out and visually observed, but there was no chipping or cracking, and the door arrangement was maintained.

  As Example 2, an experiment was performed in the same manner except that a plate glass having a thickness of 3 mm was used instead of the meshed glass. Similarly, the decorative steel plate penetrated at the same time as the switch was turned on, but immediately after that, the drill was idled and the weight was applied in the same way, but the state of the tip idling was prevented, and this was continued for 60 seconds and the switch was turned off. . The plate glass was taken out and visually observed, but similarly, there was no chipping or cracking, and the door arrangement was still maintained.

  As Comparative Example 1, an experiment was performed in the same manner except that a condominium door provided with a core material between door surface materials and without a built-in arrangement was used. It took 8 seconds to penetrate the door surface material on the inside and outside and make a through hole in the door.

  As Comparative Example 2, an experiment was performed in the same manner except that a stainless steel plate having a thickness of 1.5 mm was disposed between the door surface materials. Although some resistance was felt with the stainless steel plate, it took 16 seconds to penetrate the door and make a through hole in the door.

  As Comparative Example 3, an experiment was performed in the same manner except that a quenched steel plate having a thickness of 1.5 mm was used. Similarly, resistance was felt with the hardened steel plate, but it took 25 seconds to penetrate the door and make a through hole in the door.

  As Comparative Example 4, an experiment was performed in the same manner except that a 1.6 mm thick SGCC M-shaped bone bent in an M shape was used. It felt like the tip slipped with the M-shaped bone, but it changed to resistance, and it took 29 seconds to penetrate the door and make a through hole in the door.

  In general, intruders plan a short time so that the time until intrusion is at most several tens of seconds or less, and if it takes about 1 minute to perforate, the time to intrusion will be longer As a result, the drilling is abandoned and the person leaves the house, and the objective can be achieved by setting a time of 1 minute or more as a countermeasure for turning the thumbtan.

  Therefore, Examples 1 and 2 were switched off in 60 seconds, but their drill progress prevention function was recognized as being sufficient as a countermeasure against turning thumb. On the other hand, since the current apartment door without built-in arrangement can be perforated in 8 seconds, the door can be unlocked in 20 to 30 seconds even if the thumb bar is rotated with a metal bar after that. Even if steel material is bent or steel material is bent and the tip of the drill is slid, a through hole can be drilled in 30 seconds or less, and can be unlocked within 1 minute. Not necessarily enough.

According to the above experimental results, it is effective to prevent the rotation of the thumbtan by placing a rectangular glass plate made of flat glass or netted glass that receives and rotates the drill as a drill progress obstacle, and the relationship with comparative examples such as steel plates It was found that there was a very significant difference.

The examples of the drawings are as described above. In carrying out the present invention, when a rectangular glass plate is used as a plate glass, including a reinforcing film, doors, door inner and outer surface materials, door locks, etc. Each specific shape, material, structure, relationship thereof, addition to these, and the like of the rectangular glass plate can be in various forms as long as they do not contradict the gist of the invention.

It is a room side front view which shows the example of two rectangular glass plate arrangement | positioning forms of the door with a frame which used the lever handle lock as a door lock. FIG. 2 is an enlarged longitudinal sectional view showing a relationship between the door lock of FIG. 1 and a rectangular glass plate . It is a room side front view which shows the example of two rectangular glass plate arrangement | positioning forms of the door with a frame which used the push pull lock as the door lock. FIG. 4 is an enlarged longitudinal sectional view showing a relationship between the door lock of FIG. 3 and a rectangular glass plate . It is a partial expanded cross-sectional view which shows the mounting state of the two rectangular glass plates using a spacer. It is an expanded transverse cross section which shows the mounting state of the two rectangular glass plates of the other example using a spacer.

DESCRIPTION OF SYMBOLS 1 Security door 2 Door surface material 3 Core material 4 Door lock 5 Thumbnail 6 Door scope 7 Door frame 10 Rectangular glass plate 11 Space 12 Spacer

Claims (1)

Provided with a door handle by a lever handle lock having a single thumbtan or a push-pull lock having a pair of upper and lower thumbtans , receiving a sharp-angled tip of the drill in the vicinity of the thumbtan position of the door lock between the inner and outer surface materials and passing through This is a security door that prevents the rotation of the thumbtan by incorporating a rectangular glass plate made of plate glass or netted glass , and uses the two rectangular glass plates in the same direction as the door surface. The two rectangular glass plates are bonded and fixed to spacers in a space arrangement formed by partially removing the core material between the inner and outer surface materials , and the intermediate position of the space is built in the door. or the single Samutan position the side edge in a room outside one displaced position be in and the lever handle lock contact pair in the door lock The top and sides of the L-shaped area ranging over the front T-shaped, and covers the side of the above pair of upper and lower Samutan positions respectively be in the push-pull lock spaced laterally vertical arrangement of A security door with a thumb-tan rotation prevention structure characterized by being performed by

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