JP2008045316A - Crime-prevention structure of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crime-prevention structure of a building, which can be used as drastic measures, for example, against suffering from a sneak thief, capable of actually happening with high probability, not only by preventing a door from being easily pried open but also by dispensing with immeasurable costs. <P>SOLUTION: In this crime-prevention structure of the building, an first engaging portion 16a of a movable member 16, which is provided in a quadrilateral door 7 capable of opening/closing an entrance 5 and reciprocated by being operated by inserting a key into a lock portion 14a, is engaged with a second engaging portion 18 which is formed in a building structure 6 forming the entrance, so that the door can be kept in the locked state of being closed. The movable member is provided in such a manner as to be reciprocated in a direction which is inclined with respect to each side of the door. The first engaging portion 16a, which has two sides parallel to two sides, orthogonal to each other, on both the sides of the corner portion of the door, respectively, are provided in the state of being movable toward the outside of the contour of the door while maintaining this parallel state. The second engaging portion 18 is formed along the length position of the building structure 6, corresponding to the length position of each of the two sides, orthogonal to each other, of the door. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a security structure for building, for example, in which a door can be locked or unlocked by inserting a key into a lock keyhole and rotating it.

  As a conventional crime prevention measure, the door lock is locked (locked) and the door cannot be opened before going out or going to bed. The security of the city has deteriorated, and even when going out or sleeping after locking, it has become very common to suffer damage such as burial or robbery.

  As a countermeasure against such damage to the burrow, etc., with regard to the structure of the lock, the manufacturer will make further progress in its research and development to further improve the performance of the lock. Trying to provide.

  In addition, as an external crime prevention measure against the empty nest, for example, a plurality of locks are attached to one door so that it takes a long time for the criminal to open the door. There are things that aim to make the person himself / herself come to the scene in time to prevent crime, and for the criminal to detect such a thing and give up the crime at first glance.

  However, no matter how much the manufacturer develops advanced locks by improving the performance of the locks, the effect is not visibly increased as a countermeasure for damage to empty cavities, despite the disadvantage of increased costs. . No matter how sophisticated the lock is, no matter how high the lock performance is, it is basically configured so that a bar-like member protruding from one location of the door fits into the mortise on the wall side. If you use a tool such as a bar, it will be physically destroyed without a bunch, and as a result, you can easily open the door.

  In addition, when multiple locks are attached to one door, it is possible to easily open the door in a short time using bar, etc. There was a problem that it could not be a drastic measure against damage.

  Therefore, in view of the above problems, the present invention can be used as a drastic measure such as highly feasible vacant damage without being able to easily open the door and not requiring enormous cost. The objective is to provide a building crime prevention structure.

In order to solve the above problems, the present invention
A first engagement portion of a movable member that is provided on a quadrilateral door capable of opening and closing the doorway and reciprocates by inserting a key into the lock and operating it is formed on the building structure side that forms the doorway In the building crime prevention structure in which the door can be held in a closed locked state by engaging the second engagement portion,
The movable member is provided to reciprocate in a direction inclined with respect to each side of the door;
The first engaging portion has two sides parallel to two sides orthogonal to each other on both sides of the corner of the door, and moves toward the outside of the contour of the door while maintaining this parallel state. Is possible,
The second engaging portion is formed along the length position on the building structure side corresponding to the length position of each of the two orthogonal sides of the door, or the length position parallel to each of the two sides. It is characterized by.

Moreover, the building crime prevention structure of the present invention is
The first engaging portion is formed so as to protrude outside the contour of the door from a gap formed in a central portion in the thickness direction of the door,
The second engaging portion forms a first groove portion corresponding to the gap in a portion of the building structure corresponding to a thickness portion of the door,
The first engaging portion engages with the first groove when moving toward the outside of the contour of the door.

Moreover, the building crime prevention structure of the present invention is
The first engagement portion is formed by a first plate portion disposed at a position deviated from the thickness portion of the door,
The second engaging portion is formed by a second plate portion or a second groove portion disposed at a position deviated from the portion of the building structure corresponding to the thickness portion of the door,
The first plate portion engages with the second plate portion or the second groove portion when moving toward the outside of the outline of the door.

  Moreover, the building crime prevention structure of the present invention is characterized in that the first engaging portion or the first plate portion is formed in an L shape.

  Moreover, the building crime prevention structure of this invention has arrange | positioned the reinforcement board part on the opposite side to the said door of the said 1st board part, It is characterized by the above-mentioned.

According to the construction crime prevention structure of the present invention,
A first engagement portion of a movable member that is provided on a quadrilateral door capable of opening and closing the doorway and reciprocates by inserting a key into the lock and operating it is formed on the building structure side that forms the doorway In the building crime prevention structure in which the door can be held in a closed locked state by engaging the second engagement portion,
The movable member is provided to reciprocate in a direction inclined with respect to each side of the door;
The first engaging portion has two sides parallel to two sides orthogonal to each other on both sides of the corner of the door, and moves toward the outside of the contour of the door while maintaining this parallel state. Is possible,
The second engaging portion is formed along the length position on the building structure side corresponding to the length position of each of the two orthogonal sides of the door, or the length position parallel to each of the two sides. By
Since the first engaging portion and the second engaging portion can be engaged over the length positions of the two sides of the door orthogonal to each other or the length positions parallel to the two sides, the door can be easily Not only can it not be opened, but it does not require enormous costs, and can be used as a drastic measure against vacant nest damage with high feasibility.

Moreover, according to the building crime prevention structure of the present invention,
The first engaging portion is formed so as to protrude outside the contour of the door from a gap formed in a central portion in the thickness direction of the door,
The second engaging portion forms a first groove portion corresponding to the gap in a portion of the building structure corresponding to a thickness portion of the door,
By engaging the first groove when the first engaging portion moves toward the outside of the contour of the door,
Not only can the door not be easily opened, but the construction crime prevention structure can be prevented from increasing in the thickness direction of the door.

Moreover, according to the building crime prevention structure of the present invention,
The first engagement portion is formed by a first plate portion disposed at a position deviated from the thickness portion of the door,
The second engaging portion is formed by a second plate portion or a second groove portion disposed at a position deviated from the portion of the building structure corresponding to the thickness portion of the door,
By engaging the second plate part or the second groove part when the first plate part moves toward the outside of the contour of the door,
It is possible to diversify the structure of the building crime prevention structure.

  Further, according to the building crime prevention structure of the present invention, the first engaging portion or the first plate portion is formed in an L shape, so that the movable member can be extended over a long length along the L shape. Since one engaging part or the first plate part can be engaged with the second engaging part or the second plate part, even if a tool such as a bar is used, the door cannot be easily opened. can do.

  According to the building crime prevention structure of the present invention, the reinforcing plate portion is disposed on the opposite side of the first plate portion from the door, thereby further engaging the first plate portion and the second plate portion. Can be reinforced.

Hereinafter, the best mode for carrying out the building crime prevention structure according to the present invention will be specifically described with reference to the drawings.
FIGS. 1 to 4 are diagrams referred to for explaining the building crime prevention structure according to the first embodiment of the present invention.

  In FIG. 1, a quadrilateral door 7 is provided at the entrance / exit 5 of the entrance, and this door 7 is rotatably attached to a door frame 6 via a hinge 8. The doorway 5 can be opened and closed by reciprocation. That is, when the handle 10 provided on the door 7 is grasped by hand and pulled toward the front side in the figure, the door 7 rotates around the axis of the hinge 8 to open the doorway 5, and conversely, the handle grasped by the hand. When the door 10 is pushed to the other side in the figure, the door 7 is rotated in the opposite direction to the above, and the doorway 5 that has been opened can be closed.

  Incidentally, the doorway 5 is formed inside the door frame 6 as a building structure provided along each side of the opening opened in the wall 12 as the building structure. A lock 14 is provided in the thickness direction of the door 7 above the handle 10 in the figure, and the lock 14 is provided so that the key hole 14a can be seen on the front side (front side in the figure) of the door 7.

  By inserting a key (not shown) into the keyhole 14a and rotating it left and right, the locking mechanism as described below is operated to set the door 7 in a state where it cannot be opened (locked state) The state can be set so that the door 7 can be opened by releasing the state (unlocked state).

  At the position of the upper right corner of the door 7 and the two sides orthogonal to each other on both sides of the door 7, the door 7 has a thickness in the thickness direction of the door 7. A movable member 16 having a side and formed in an arrow shape is provided so as to protrude outward from a gap 7d (see FIGS. 3 and 4) formed in the center in the thickness direction of each of the two sides of the door 7. ing.

  At the position of the door frame 6 corresponding to each of the two sides perpendicular to each other of the door 7 provided with the movable member 16, the thickness portion of the door frame 6 corresponding to the thickness portion of the door 7 A groove 18 (second engaging portion) is formed corresponding to the gap 7d (see FIGS. 2 and 3), and an L-shaped portion 16a (upper right side in FIG. 2) of the movable member 16 is formed in the groove 18 (see FIG. 2). The first engaging portion can be fitted (engaged) (see FIGS. 2 and 4).

  When the L-shaped portion 16a is fitted in the groove 18 in this way, the hatched portion in the drawing of the L-shaped portion 16a is fitted in the groove 18 but the inner side is the door 7. It remains in the gap 7d.

  As shown in FIG. 2, the central straight portion 16 b of the movable member 16 is slidably fitted in a guide groove 7 c provided inside the door 7 in the thickness direction. Although not shown, a gear as a rack is formed on a thickness portion of the movable member 16 that is not fitted in the guide groove 7c on the side portion 16c on the lower right side in the width direction in the figure. A gear 20 (only a pitch circle is shown) that meshes with the rack is rotatably supported inside the door 7 in the thickness direction.

  When the gear 20 rotates in the clockwise direction, the movable member 16 can move from the lower left position to the upper right position in FIG. 2 through the meshing of the rack and the pinion. When rotated in the clockwise direction, the movable member 16 can move in the direction opposite to the above through the meshing, that is, from the upper right side position to the lower left side position in the figure. ing.

  Therefore, the movable member 16 can reciprocate along the direction inclined by about 45 ° with respect to the two sides perpendicular to each other on both sides of the upper right corner of the door 7 in FIG.

  When the movable member 16 moves in this way, the two sides of the L-shaped portion 16 a having two sides parallel to the two sides orthogonal to each other of the door 7 are parallel to the two sides orthogonal to the door 7. Move while maintaining state.

  The L-shaped portion 16a of the movable member 16 is housed in a housing portion 7a formed inside the door 7 when the door 7 is unlocked, and has a thickness on each of the two orthogonal sides of the door 7. From the gap 7d formed in the center of the surface in the direction, it does not protrude outside the contour of the door 7 (see FIG. 3).

  When the door 7 is in a locked state, as shown in FIGS. 2 and 4, the L-shaped portion 16 a has an outline of the door 7 through a gap 7 d formed in the center of the surface of the door 7 in the thickness direction. It protrudes outside and fits into a groove 18 formed on the door frame 6 side.

  As shown in FIG. 1, the gear 20 is connected to the lock 14 via a driving means 22, and the gear 20 is rotationally driven via the driving means 22 by inserting a key into the keyhole 14 a and rotating. It has become so.

  As such a driving means 22, in addition to an endless rope, a V-belt and their pulleys, a gear set composed of a plurality of gears, a combination of a rack and a pinion, and the like can be considered. Any other configuration may be used as long as the gear 20 can be rotationally driven via the shaft.

  The movable member 16, its L-shaped portion 16a, the groove 18, the gear 20 and the driving means 22 constitute the locking mechanism.

  In the building crime prevention structure with such a configuration, when locking, the gear 20 is rotated in the clockwise direction via the driving means 22 by inserting the key into the keyhole 14a and rotating the key. The movable member 16 moves so that the L-shaped portion 16a is fitted into the groove 18 on the door frame 6 side, and when the key is pulled out from the key hole 14a in this state, the locked state can be maintained. A lock 14 is configured.

  When unlocking, by inserting the key into the keyhole 14a and rotating the key in the reverse direction, the gear 20 is driven to rotate in the counterclockwise direction via the driving means 22, and the L-shaped portion 16a is The lock 14 is configured so that it can be pulled out of the groove 18 and stored in the storage portion 7a on the door 7 side, and the unlocked state can be maintained when the key is pulled out from the key hole 14a. .

  Of course, an indoor resident can easily unlock the building crime prevention structure by manually rotating a rotating plate portion (not shown) provided on the back side of the keyhole 14a from the back side of the door 7 to Needless to say, the door 7 can be easily opened.

  According to the building crime prevention structure according to the first embodiment having such a configuration, the L-shaped portion 16a of the movable member 16 corresponds to the corner portion of the door 7 and the two sides orthogonal to each other on both sides thereof. Since it fits in the groove 18 formed in the thickness direction inside at the position 6, the door cannot be easily opened even if a tool such as a bar is used.

  That is, the outer portion of the L-shaped portion 16 a and the groove 18 of the door frame 6 are engaged over the lengths of the two sides of the door 7 orthogonal to each other, and the inner portion of the L-shaped portion 16 a is within the gap 7 d of the door 7. Therefore, even if a tool such as a bar is used, the door cannot be easily opened, and the door 7 and the door frame 6 are, for example, the length range of each side of the L-shaped portion 16a. The door cannot be opened unless it is destroyed. Therefore, as a criminal such as a vacant nest, there is no choice but to give up and dismiss.

Moreover, according to the construction crime prevention structure which concerns on 1st Embodiment of such a structure, the movable member 16, the gear 20, and the drive means 22 are provided in the inside of the door 7, and the groove | channel 18 is formed in the door frame 6 side. Since it is only necessary to do so, it does not require enormous costs.
Therefore, the building crime prevention structure according to the first embodiment can be used as a drastic measure against vacant nest damage with high feasibility.

FIG. 5 is a diagram showing a building crime prevention structure according to the second embodiment of the present invention.
In the first embodiment, the L-shaped portion 16a of the movable member 16 is formed in an L shape along the corner portion of the door 7 and the two sides on both sides thereof. In the second embodiment, the engaging portion 16 d of the movable member 16 is formed along only two sides that are orthogonal to each other on both sides of the corner of the door 7, and corresponds to the corner of the door 7 of the movable member 16. The engaging portion 16d is composed of two parts separated from each other, ie, a part extending in the vertical direction and a part extending in the horizontal direction in the drawing. This is different from the embodiment.

  Also according to the second embodiment of the present invention, the same effects as those of the first embodiment can be obtained. Moreover, according to such 2nd Embodiment, the groove | channel 19 equivalent to the groove | channel 18 in the said 1st Embodiment formed in the door frame 6 side is made into the said 2 sides of the said door 7 mutually orthogonally It is only necessary to form the two length portions of the door frame 6 corresponding to each, and it is not necessary to continuously form the two grooves in the L-shape as in the first embodiment. The processing of the groove 19 can be facilitated.

6 to 10 are views showing a building crime prevention structure according to the third embodiment of the present invention.
In the first embodiment, the L-shaped portion 16a is provided within the plate thickness of the door 7, and the L-shaped portion 16a is provided at the center of the surface in the thickness direction of each of the two sides perpendicular to each other. The third embodiment is moved to the outside of the outline of the door 7 from the gap 7d and engages with the groove 18 formed in the door frame 6, whereas the third embodiment is L-shaped. The portion 26 is provided at a position outside the plate thickness of the door 7, and the L-shaped portion 26 is provided on the engagement fitting 32 provided at a position different from the position of the door frame 6 corresponding to the plate thickness of the door 7. It is different in that it is adapted to be engaged.

  That is, the L-shaped portion 26 (movable member, first engagement portion, first plate portion) shown in FIG. 6 is arranged at a position on the right side of the plate thickness of the door 7 as shown in FIG. The L-shaped portion 26 is fixed to the distal end portion of a bent portion 28a of a rod-like drive transmission member 28 provided within the plate thickness of the door 7. An elastic receiving portion 29 that comes into contact with the upper end portion of the door 7 when the door 7 closes the doorway 5 is provided below the hanging portion 6 a of the door frame 6. , The second plate portion) is embedded and fixed.

  As shown in FIG. 6, the engagement metal fitting 32 is provided on the inner side of the contour lines of two sides perpendicular to each other on both sides of the corner portion of the door 7 and at a length position parallel to each of the two sides. The mold portion 26 is formed along the length position of the door frame 6 corresponding to two sides orthogonal to each other.

  As shown in FIG. 7, the engagement fitting 32 is provided at a position shifted from the position of the door frame 6 corresponding to the plate thickness of the door 7 toward the back side of the door 7 (right side in the figure, indoor side). Furthermore, it is provided at a position closer to the door 7 than the L-shaped portion 26.

  Further, as shown in the figure, a cover member 34 (reinforcing plate portion) is disposed on the back side of the door 7 and on the opposite side of the L-shaped portion 26 from the door 7 (the right side in the drawing from the L-shaped portion 26 and the indoor side). The edge 34 a of the cover member 34 on the side away from the L-shaped portion 26 (the lower side in the figure) is fixed to the back surface of the door 7.

  As shown in FIG. 8, the bent portion 28 a of the drive transmission member 28 is inserted into a long hole 7 b formed in an oblique direction in the thick portion on the back surface side of the door 7, and unlocks or locks the door 7. In accordance with the state, it moves to each position shown in FIG. 8 (a) or (b).

    In the building crime prevention structure having such a configuration, when locking, the drive transmission member 28 is pushed upward by inserting the key into the keyhole 14a and rotating, so that the bent portion 28a of the door 7 It moves from the position shown in FIG. 8A to the position shown in FIG. 8B along the long hole 7b in the oblique direction.

Then, the L-shaped part 26 moves from the position shown in FIGS. 6 and 7 to the position shown in FIGS. 9 and 10, and the L-shaped part 26 comes to a position where it overlaps with the engagement fitting 32 provided on the door frame 6 side. . Accordingly, in FIG. 10, even if the door 7 is to be opened and moved in a direction away from the elastic receiving portion 29, the L-shaped portion 26 interferes (engages) with the engagement fitting 32 and the door 7. Can not be opened, become locked.
If the key is pulled out from the keyhole 14a in this state, the locked state can be maintained.

  When unlocking, by inserting a key into the keyhole 14a and rotating it in the reverse direction, the drive transmission member 28 is pushed down, and the bent portion 28a is formed along the long hole 7b in FIG. ) To the position shown in FIG.

Then, the L-shaped part 26 moves from the position shown in FIGS. 9 and 10 to the position shown in FIGS. 6 and 7, and the L-shaped part 26 moves to a position where it does not overlap with the engagement fitting 32 on the door frame 6 side. . As a result, as shown in FIG. 7, when the door 7 is to be opened and the door 7 is about to move away from the elastic receiving portion 29, the L-shaped portion 26 does not interfere with the engagement fitting 32. The door 7 can be opened and the unlocked state is established.
When the key is pulled out from the keyhole 14a in this state, the unlocked state can be maintained.

  According to the building crime prevention structure according to the third embodiment having such a configuration, in the locked state, the L-shaped portion 26 on the door 7 side is engaged with the engagement fitting 32 on the door frame 6 side. Since the interference occurs, the L-shaped portion 26 and the engagement fitting 32 are also connected to each side of the L-shaped portion 26 along a length position parallel to the corner portion of the door 7 and the two sides on both sides thereof. The door 7 cannot be easily opened.

  Moreover, according to the construction crime prevention structure of such a structure, the drive transmission member 28 is provided in the inside of the door 7, the L-shaped part 26 is provided in the front-end | tip part of the bending part 28a of this drive transmission member 28, and the door frame 6 Since it is only necessary to provide the engagement fitting 32 on the side, a huge cost is not required.

  Further, since the cover member 34 is provided on the back side (right side in FIG. 7) of the L-shaped portion 26, when the L-shaped portion 26 is engaged with the engagement fitting 32 and receives a large force, the cover member Since 34 can be reinforced, it is possible to prevent the L-shaped portion 26 from falling off the bent portion 28a due to the large force.

  Therefore, the building crime prevention structure according to the third embodiment can also be used as a drastic measure against vacant nest damage with high feasibility.

11 and 12 are diagrams showing a building crime prevention structure according to the fourth embodiment of the present invention.
In the third embodiment, the engaging bracket 32 is fixed to the lower side of the hanging part 6a of the door frame 6, whereas the building crime prevention structure according to the fourth embodiment is The difference is that a groove 38 (second engagement portion) is formed in the hanging portion 6a of the door frame 6 instead of the engagement fitting 32, and the other points are the same as those of the third embodiment. is there.

  When locking in the building crime prevention structure having such a configuration, the drive transmission member 28 is pushed upward by inserting the key into the keyhole 14a and rotating, and the bent portion 28a extends along the long hole 7b. Then, the position moves from the position shown in FIG. 8A to the position shown in FIG.

Then, the L-shaped portion 26 moves from the position shown in FIG. 11 to the position shown in FIG. 12, and the L-shaped portion 26 fits into the groove 38, so that the door 7 cannot be opened.
When the key is pulled out from the key hole 14a in this state, the locked state can be maintained.

  When unlocking, by inserting a key into the keyhole 14a and rotating it in the reverse direction, the drive transmission member 28 is pushed down, and the bent portion 28a is formed along the long hole 7b in FIG. ) To the position shown in FIG.

Then, the L-shaped part 26 moves from the position shown in FIG. 12 to the position shown in FIG. 11, and the L-shaped part 26 comes out of the groove 38, so that the door 7 can be opened.
When the key is pulled out from the keyhole 14a in this state, the unlocked state can be maintained.

  According to the building crime prevention structure according to the fourth embodiment having such a configuration, the L-shaped portion 26 on the door 7 side fits into the groove 38 on the door frame 6 side in the locked state. Therefore, since the L-shaped portion 26 and the groove 38 are engaged along the length position parallel to the corner portion of the door 7 and the two sides on both sides thereof, it is assumed that a tool such as a bar is used. However, the door 7 cannot be easily opened.

Moreover, according to the building crime prevention structure according to the fourth embodiment having such a configuration, the drive transmission member 28 is provided inside the door 7, and the L-shaped portion 26 is provided at the distal end portion of the drive transmission member 28, Since it is only necessary to form the groove 38 on the door frame 6 side, an enormous cost is not required.
Therefore, the building crime prevention structure according to the fourth embodiment can also be used as a drastic measure against vacant nest damage that is highly realistic.

  In the third and fourth embodiments, the cover member 34 is provided on the side opposite to the door 7 of the L-shaped portion 26, that is, on the back side of the door 7 and on the back side of the L-shaped portion 26. It is not necessary to limit to such a configuration, and such a cover member 34 may not be provided.

  However, in this case, when the L-shaped portion 26 engages with the engagement fitting 32 or the groove 38 and receives a large force from the engagement fitting 32 or the groove 38, the L-shaped portion 26 bends the drive transmission member 28. Since the cover member 34 that can be reinforced in order to prevent it from falling off from the portion 28a is not provided, the L-shaped portion 26 needs to be fixed to the bent portion 28a with high strength.

It is the front view which shows the door 7 in which the building crime prevention structure which concerns on the 1st Embodiment of this invention was provided. 4 is a partially enlarged view showing a locked state in which an L-shaped portion 16a of a movable member 16 inside the door 7 is fitted in a groove 18 of the door frame 6. FIG. 4 is a side sectional view of the door 7 and the door frame 6 showing an unlocked state in which the L-shaped portion 16a of the movable member 16 is not fitted in the groove 18 of the door frame 6. FIG. 4 is a side cross-sectional view of the door 7 and the door frame 6 showing a locked state in which the L-shaped portion 16a of the movable member 16 is fitted in the groove 18 of the door frame 6. FIG. It is the elements on larger scale which show the locked state which two engaging parts 16d of the movable member 16 of the building crime prevention structure which concerns on the 2nd Embodiment of this invention fit in the two groove | channels 19 of the door frame 6. FIG. . It is the elements on larger scale which show the unlocking state in which the L-shaped part 26 arrange | positioned at the back side of the door 7 in the building crime prevention structure which concerns on the 3rd Embodiment of this invention is not engaged with the engagement metal fitting 32. It is AA arrow sectional drawing of the door frame 6 and the door 7 in FIG. It is a figure which shows the positional relationship of the elongate hole 7b formed in the door 7, and the bending part 28a of the drive transmission member 28 penetrated to this, Fig.8 (a) is a positional relationship in an unlocked state, FIG.8 (b). These are figures which show the positional relationship in a locked state. FIG. 4 is a partially enlarged view showing a locked state in which an L-shaped portion 26 disposed on the back side of the door 7 is engaged with an engagement fitting 32. FIG. 10 is a cross-sectional view of the door frame 6 and the door 7 in FIG. It is side surface sectional drawing of the door frame 6 and the door 7 which shows the unlocking state of the building crime prevention structure which concerns on the 4th Embodiment of this invention. It is side surface sectional drawing of the door frame 6 and the door 7 which shows the locking state of the building crime prevention structure which concerns on the 4th Embodiment of this invention. It is side surface sectional drawing of the door frame 6 and the door 7 which shows the unlocking state of the building crime prevention structure which concerns on other embodiment of this invention. It is side surface sectional drawing of the door frame 6 and the door 7 which shows the locking state of the building crime prevention structure which concerns on other embodiment of this invention.

Explanation of symbols

5 doorway 6 door frame 6a hanging part 7 door 7a storage part 7b long hole 7c guide groove 7d gap 8 hinge 10 handle 12 wall part 14 lock 14a key hole 16 movable member 16a L-shaped part 16b central straight part 16c side side part 16d engagement Part 18 groove 19 groove 20 gear 22 drive means 26 L-shaped part 28 drive transmission member 28a bent part 29 elastic receiving part 32 engaging metal fitting 32a embedded part 34 cover member 34a edge part 38 groove

Claims (5)

A first engagement portion of a movable member that is provided on a quadrilateral door capable of opening and closing the doorway and reciprocates by inserting a key into the lock and operating it is formed on the building structure side that forms the doorway In the building crime prevention structure in which the door can be held in a closed locked state by engaging the second engagement portion,
The movable member is provided to reciprocate in a direction inclined with respect to each side of the door;
The first engaging portion has two sides parallel to two sides orthogonal to each other on both sides of the corner of the door, and moves toward the outside of the contour of the door while maintaining this parallel state. Is possible,
The second engaging portion is formed along the length position on the building structure side corresponding to the length position of each of the two orthogonal sides of the door, or the length position parallel to each of the two sides. Building security structure characterized by The first engaging portion is formed so as to protrude outside the contour of the door from a gap formed in a central portion in the thickness direction of the door,
The second engaging portion forms a first groove portion corresponding to the gap in a portion of the building structure corresponding to a thickness portion of the door,
The building security structure according to claim 1, wherein the first engaging portion is engaged with the first groove portion when moving toward the outside of the outline of the door. The first engagement portion is formed by a first plate portion disposed at a position deviated from the thickness portion of the door,
The second engaging portion is formed by a second plate portion or a second groove portion disposed at a position deviated from the portion of the building structure corresponding to the thickness portion of the door,
The building crime prevention according to claim 1, wherein the first plate portion engages with the second plate portion or the second groove portion when the first plate portion moves toward the outside of the contour of the door. Construction.   The building crime prevention structure according to claim 1 or 3, wherein the first engagement portion or the first plate portion is formed in an L shape. The building security structure according to claim 3, wherein a reinforcing plate portion is disposed on the opposite side of the first plate portion to the door.

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