JP2018184773A - Antitheft device and antitheft method after earthquake - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antitheft device and antitheft method which are capable of taking emergency measures in the form of a provisional lock to a door which has been destroyed by an earthquake.SOLUTION: An antitheft method includes the steps of: attaching a lower frame 4, an upper frame 5 capable of moving upward and downward with respect to the lower frame 4, and a fixing plate with an opening portion to a door frame 2; pulling the upper frame 5 upward after an earthquake for causing a protrusion frame to appear; and joining an outer handle 31 of a door 3 and the protruding frame with a chain 8.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an antitheft device and method after an earthquake.

  When a house is damaged due to a large earthquake, the door frame may be deformed and the door cannot be opened or closed. Rescue is delayed because the door cannot be opened because the door does not open, and in the worst case, it can be burned to death by being caught in a fire that has occurred, or it can be overwhelmed by the collapse of a building caused by an aftershock. In order to prevent such a situation, inventions and devices as described in the following patent documents and the like have been proposed. The present applicant has also proposed a door that can cope with door frame deformation in an unpublished application. As a result, it is now possible to safely open the door and escape outside even in the event of a major earthquake.

Japanese Utility Model Publication No. 61-065190 JP 09-189174 A JP-A-10-184218 Japanese Patent Laid-Open No. 10-280821 JP 2005-163466 A

  However, once you successfully escape, you will face a new problem that you will not be able to close and lock the door. The reason is considered as follows.

(1) In the case of doors that do not have anti-seismic performance (A) When the door is closed, because it is in contact with the thickness (door thick part) of the door and the inner surface of the frame, As soon as the door is opened, the bow breaks, making it difficult to close the door in a distorted frame.
(B) The contact pressure is also transmitted to the hanging bracket (such as a hinge), the hanging bracket is deformed, and when the door frame is in contact, the hanging bracket is also stretched. Or, the door is difficult to close because it remains deformed.

(2) In the case of a door with anti-seismic performance (C) If the frame is greatly deformed, it will be in the same state as in (A) and (B) above.
(D) Anti-seismic hinges and anti-seismic doors have a spring structure, and when the door frame comes in contact, the contact pressure is reduced via the spring and the door is easy to open. Return (ie, the door returns to its normal position), making the door difficult to close.

(3) Regardless of anti-seismic performance (E) When the door is closed and difficult to open, the door thickness (door thick portion) is in contact with the inner surface of the frame, so the friction coefficient (pressure) The opening force of the door changes depending on the size. However, when the door is difficult to close, the outer surface of the frame interferes with the inner surface of the door and cannot be closed. Therefore, the door cannot be closed unless the force is larger than that when the door is difficult to open.

  Under these circumstances, those who escape outside go to evacuation shelters, relatives / friends' homes for the time being, so the affected houses become vacant houses that are not locked. According to TV and other media reports, there have been many cases of burglary where vacancies invade such vacant houses and steal the remaining money.

  In order to prevent this, it seems that the chain is wrapped around the door, but the reality is that it is hard to say that it is enough because the amateur is doing it quickly.

  In preparation for such a situation, the present invention provides an anti-theft device which is installed before an earthquake, preferably at the time of new construction, and a method of using the same.

  The anti-theft device after an earthquake according to the present invention includes a lower frame 4, an upper frame 5 capable of moving up and down with respect to the lower frame 4, and a fixing plate with an opening 61 fixed to the door frame 2 at the time of installation. 6 and the chain 8, the upper frame 5 does not normally protrude from the opening 61 of the fixing plate 6, but is pulled out upward through the opening 61 after an earthquake, thereby protruding the frame 56. And the chain 8 can be passed through the protruding frame 56 (Claim 1).

  Preferably, a pressing spring 7 is installed between the lower frame 4 and the upper frame 5, and the lower frame 4 and the upper frame 5 are attracted to each other in a natural state, and the upper frame 5 is fixed to the fixing plate 6. It does not protrude from the opening 61 (claim 2).

The pressing spring 7 is preferably provided between the first upper plate 43 and the second lower plate 51 of the upper frame 5 (Claim 3). The push spring 7 is preferably guided along a guide shaft 47 disposed inside the push spring 7 (Claim 4).

  Preferably, a knob 55 for artificially pulling out the upper frame 5 upward is provided (Claim 5).

  Preferably, the lower frame 4 is formed by bending one elongated metal plate in some places, and includes a first lower plate 41 and two first side plates 42 extending from both ends of the first lower plate 41. The first upper plate 43 includes two short first upper plates 43 extending from the upper ends of the first side plates 42 toward each other.

  Preferably, the upper frame 5 is formed by bending one elongated metal plate in some places, and rises from two second lower plates 51 located at both ends and from each end of the second lower plate. It consists of two second side plates 52 and one second upper plate 53 connecting these second side plates 52 (Claim 7).

  The anti-theft method after an earthquake according to the present invention includes a lower frame 4, an upper frame 5 capable of moving up and down with respect to the lower frame 4, and a step of attaching a fixing plate 6 with an opening 61 to the door frame 2. After the earthquake, the upper frame 5 is pulled upward to cause the protruding frame 56 to appear, and the chain 8 includes a step of connecting the outer handle 31 of the door 3 and the protruding frame 56 (claim). Item 8).

  According to the apparatus and method of the present invention, after the earthquake, the upper frame 5 is pulled upward to cause the protruding frame 56 to appear, and the chain 8 connects the outer handle 31 of the door 3 and the protruding frame 56. it can. If this device is installed at the time of new construction, it will be a fairly solid security measure after the earthquake. Since it is a simple device, it does not cost much to install.

It is a perspective view of the antitheft device of the embodiment of the present invention. It is a disassembled perspective view of an antitheft device. It is (a) front view, (b) left side view, (c) cross-sectional view, and (d) plan view of the anti-theft device in the mounted state and when not in use. It is (a left view, (b) sectional drawing, (c) top view) of the antitheft device in the mounted state and in use. (A) It is an entrance top view before use of an antitheft device. (B) It is an entrance top view in use of the antitheft device.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 to 5 show an antitheft device 1 according to an embodiment of the present invention. The apparatus 1 is attached in advance before an earthquake occurs, preferably at the time of new construction.

  The place for attachment is the door frame 2 on the indoor side, and near the handle 31 of the door 3 (see FIG. 5). The anti-theft device 1 shown in the figure is an independent device, but depending on the design, it can be combined with a door guard or door chain to form an integrated device.

  1-4, the antitheft device 1 has a lower frame 4, an upper frame 5 that moves up and down relative to the lower frame, and a fixing plate 6 to which the upper and lower frames 4 and 5 are attached.

  The lower frame 4 is formed by bending one elongated metal plate in some places, and includes a first lower plate 41, two first side plates 42 and 42 extending from both ends of the first lower plate 41, Each of the first side plates 42 has two short first upper plates 43 and 43 extending from the upper end in a direction approaching each other. A screw hole 44 is provided in the first lower plate 41, and a screw hole 45 is provided on the first upper plate 43. The screw 46 is inserted through the screw hole 44, and the screw 64 is inserted through the screw hole 45. A guide shaft 47 with an inner diameter thread is connected between the screw 46 and the screw 64, and this serves as a guide for the push spring 7 (described later). The guide shaft 47 moves the upper frame 5 smoothly up and down without the catch of the pressing spring 7.

  The upper frame 5 is formed by bending one elongated metal plate in some places, and includes two second lower plates 51 positioned at both ends, and two sheets rising from each end of the second lower plate. The second side plates 52, 52 and one second upper plate 53 that connects these second side plates 52. A screw hole 54 is provided in the second lower plate 51. On the second upper plate 53, a knob 55 that can be pinched with a finger is provided.

  Between the two first upper plates 43, 43 of the lower frame 4 and the two second lower plates 51, 51 of the upper frame 5, a pressing spring 7 guided by a guide shaft 47 is installed. Therefore, in normal times, as shown in FIGS. 1, 3, and 5A, the first upper plates 43, 43 and the second lower plates 51, 51 are maximally separated from each other by the biasing force of the spring 7. Is in a state. In this state, since the upper frame 5 is pushed in the direction of the lower frame 4, the fixing plate 6, the opening 61 and the second upper plate 53 are aligned in a line.

  The fixing plate 6 is attached to the door frame 2 and has an opening 61 hollowed out in the center and screw holes 62 and 63. The fixing plate 6 and the first upper plate 43 are inserted with screws 64 through the screw holes 45 and 63. As described above, the screw 64 supports the guide shaft 47. The fixing plate 6 is fixed to the door frame 2 with screws 65 through screw holes 62.

  When the upper frame 5 moves up and down, the second upper plate 53 appears and disappears from the opening 61 of the fixed plate. In a normal state, as shown in FIGS. 1, 3, and 5A, the second upper plate 53 is aligned with the opening 61 substantially in a line. Therefore, since it does not protrude from the door frame 2 at normal times, a clean appearance can be given without getting in the way.

  However, if the knob 55 of the second upper plate 53 is pinched with a finger and pulled up against the force of the spring 7, the upper frame 5 moves upward as shown in FIG. A protruding frame 56 surrounded by the second side plates 52, 52 appears. As will be described below, the chain can be fixed by passing the chain 8 through the protruding frame 56.

  In order to lock using the antitheft device 1, as shown in FIG. 5 (b), a chain 8 prepared separately is used between the outer handle 31 (lever handle or door knob) of the door 3 and the antitheft device 1. Link. The chain 8 passes through the gap between the door frame 2 and the door 3 and the protruding frame 56. The position (height and side) of the handle 31 varies slightly depending on the manufacturer and varies depending on the deformation of the door frame after the earthquake. However, if a long chain is prepared, it can be locked at any position. . Finally, both ends 81 of the chain 8 are locked with a padlock 82 or the like. When opening the door 3, the reverse operation is performed.

  By using this antitheft device 1, the door 3 is securely locked to the door frame 2. In the unlikely event that you enter a vacant nest, traces such as unauthorized unlocking and breaking remain in the chain, making it easier to make an initial investigation by immediately reporting to the police.

  In addition, this antitheft device 1 is not an effective countermeasure against an empty nest that cuts a chain with a chain cutter or the like. However, since any suspicious person carrying such a chain cutter will be noticed by anyone, such an action is considered to be naturally suppressed. In addition, since the device 1 is not used for a long time after an earthquake but is used only for an emergency situation, it is considered that a certain degree of vulnerability is allowed.

DESCRIPTION OF SYMBOLS 1 Antitheft device 2 Door frame 3 Door 31 Handle 4 Lower frame 41 First lower plate 42 First side plate 43 First upper plate 44 Screw hole 45 Screw hole 46 Screw 47 Guide shaft 5 Upper frame 51 Second lower plate 52 Second Side plate 53 Second upper plate 54 Screw hole 55 Knob 56 Projection frame 6 Fixing plate 61 Opening 62 Screw hole 63 Screw hole 64 Screw 65 Screw 7 Push spring 8 Chain

Claims (8)

An anti-theft device after an earthquake,
Lower frame (4),
An upper frame (5) capable of moving up and down with respect to the lower frame (4);
A fixing plate (6) with an opening (61) fixed to the door frame (2) during installation;
Having a chain (8),
The upper frame (5) normally does not protrude from the opening (61) of the fixing plate (6), but is pulled out upward through the opening (61) after an earthquake, and the protruding frame (56). And the chain (8) can pass through the protruding frame (56).   A pressing spring (7) is installed between the lower frame (4) and the upper frame (5), and the lower frame (4) and the upper frame (5) are attracted to each other in the natural state, The device according to claim 1, wherein the frame (5) does not protrude from the opening (61) of the fixed plate (6).   The device according to claim 2, wherein the pressing spring (7) is provided between the first upper plate (43) and the second lower plate (51) of the upper frame (5).   The device according to claim 2 or 3, wherein the pressing spring (7) is guided along a guide shaft (47) arranged inside the pressing spring (7).   The device according to claim 1, further comprising a knob (55) for artificially pulling out the upper frame (5) upward.   The lower frame (4) is formed by bending a thin and long metal plate in some places. The first lower plate (41) and two first plates extending from both ends of the first lower plate (41). The apparatus according to any one of claims 1 to 5, comprising a side plate (42) and two short first upper plates (43) extending in a direction approaching each other from an upper end of each first side plate (42).   The upper frame (5) is formed by bending one elongated metal plate in some places. From the two second lower plates (51) located at both ends, and from each end of these second lower plates The device according to any one of claims 1 to 6, comprising two second side plates (52) that stand up and one second upper plate (53) that connects these second side plates (52). A method of preventing theft after an earthquake,
A step of attaching a lower frame (4), an upper frame (5) capable of moving up and down relative to the lower frame (4), and a fixing plate (6) with an opening (61) to the door frame (2); ,
Pulling the upper frame (5) upward after the earthquake and causing the protruding frame (56) to appear;
A method for preventing theft after an earthquake, comprising a step of connecting the outer handle (31) of the door (3) and the protruding frame (56) with a chain (8).

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